CN211585861U - A kind of blast furnace water slag environmental protection whitening device - Google Patents

Abstract

Translated fromChinese

本实用新型公开了一种高炉水渣环保消白装置，包括粒化消白塔(2)和消白池(6)，粒化消白塔(2)的下部设有高炉熔渣入口(9)和粒化器(1)，粒化消白塔(2)内含有上下设置的冷凝喷淋装置(4)和喷淋水收集斗(3)，粒化消白塔(2)的上部设有蒸汽出口(10)和注气口(16)，消白池(6)内设有过滤层(7)和过滤管(8)，蒸汽出口(10)通过蒸汽输送管线(11)与过滤管(8)连接，蒸汽输送管线(11)上依次设有除沫器(14)和蒸汽风机(5)。该高炉水渣环保消白装置充分利用底滤法工艺中的滤料，在蒸汽消白过程中把未被冷凝喷淋装置凝结的小部分蒸汽引至消白池的底部，能够提高对滤料的反冲洗效率、提高滤料活性。

The utility model discloses an environmental protection whitening device for blast furnace water slag, which comprises a granulation whitening tower (2) and a whitening pool (6). The lower part of the granulation whitening tower (2) is provided with a blast furnace slag inlet (9). And the granulator (1), the granulation and whitening tower (2) contains a condensing spray device (4) and a spray water collecting bucket (3) arranged up and down, and the upper part of the granulation and whitening tower (2) is provided with The steam outlet (10) and the gas injection port (16) are provided with a filter layer (7) and a filter tube (8) in the whitening tank (6), and the steam outlet (10) is connected to the filter tube (8) through the steam conveying line (11) connected, the steam conveying line (11) is provided with a demister (14) and a steam blower (5) in sequence. The blast furnace water slag environmental protection whitening device makes full use of the filter material in the bottom filtration process, and leads a small part of the steam that is not condensed by the condensation spray device to the bottom of the whitening tank during the steam whitening process, which can improve the efficiency of the filter material. Backwash efficiency and improve filter activity.

Description

Translated fromChinese

一种高炉水渣环保消白装置A kind of blast furnace water slag environmental protection whitening device

技术领域technical field

本实用新型涉及金属冶炼设备领域，具体的是一种高炉水渣环保消白装置。The utility model relates to the field of metal smelting equipment, in particular to a blast furnace water slag environmental protection whitening device.

背景技术Background technique

高炉冶炼时会产生高温液态熔渣(1350℃-1500℃)，国内每年生产铁水7亿吨，产生高温液态熔渣2.5亿吨。国内外通常采用沉淀过滤法(常称底滤法)水渣工艺对熔渣进行粒化处理。在高炉炉前进行水力冲渣，用水淬将熔渣击碎后，变成渣水混合物(常称水渣)，水渣经冲渣沟进入过滤池，液态水经过滤池内的过滤层过滤后循环使用，过滤池内留下固态渣粒，然后通过桥式抓斗起重机对渣粒进行抓取、装车外运。High temperature liquid slag (1350℃-1500℃) will be produced during blast furnace smelting. The annual domestic production of molten iron is 700 million tons, and 250 million tons of high temperature liquid slag is produced. At home and abroad, precipitation filtration method (often called bottom filtration method) water slag process is usually used to granulate molten slag. Hydraulic slag flushing is carried out in front of the blast furnace, and the molten slag is crushed by water quenching and becomes a mixture of slag and water (often called water slag). After recycling, solid slag particles are left in the filter tank, and then the slag particles are grabbed by bridge-type grab cranes, loaded into trucks and shipped out.

水渣工艺对熔渣进行粒化处理的过程中会产生大量含硫蒸汽(约60℃-100℃)，水渣蒸汽具有腐蚀性，在散发过程中污染周边环境，腐蚀周围的设备，同时由于过滤池距高炉的距离很近，因此散发的蒸汽也会对高炉设备造成一定的腐蚀。The water slag process will produce a large amount of sulfur-containing steam (about 60℃-100℃) in the process of granulating the molten slag. The water slag steam is corrosive, pollutes the surrounding environment and corrodes the surrounding equipment during the emission process The distance between the filter tank and the blast furnace is very close, so the steam emitted will also cause certain corrosion to the blast furnace equipment.

随着我国环保形势的越来越严峻，钢铁企业对水渣工艺的蒸汽消白技术的需求越来有强烈。国内外已经进行多年的相关研究，希望消除冲渣蒸汽，实现蒸汽消白。例如，中国专利CN 107815514 A，公开日期2018年3月20日，公开了一种《冲渣水蒸汽回收与消白雾的设备及回收方法》，该专利首先采用喷雾降温的方式实现蒸汽回收，然后利用热风炉烟气升温蒸汽防止产生白烟。采用该专利的方法能够有效减少部分蒸汽排放，利用热风炉烟气升温蒸汽能够防止产生白烟，但最终还是有部分蒸汽排入大气，即未能实现真正彻底的消白。With the increasingly severe environmental protection situation in my country, iron and steel enterprises have an increasingly strong demand for steam whitening technology of water slag process. Relevant research has been carried out for many years at home and abroad, hoping to eliminate the slag flushing steam and realize the steam whitening. For example, Chinese patent CN 107815514 A, published on March 20, 2018, discloses a kind of "equipment and recovery method for slag flushing water vapor recovery and white mist elimination", which first adopts the method of spray cooling to realize steam recovery, Then use the hot blast stove flue gas to heat up the steam to prevent the generation of white smoke. The method of this patent can effectively reduce part of the steam emission, and the use of hot blast stove flue gas to heat up the steam can prevent the generation of white smoke, but in the end, part of the steam is still discharged into the atmosphere, that is, true and complete whitening cannot be achieved.

实用新型内容Utility model content

为了实现真正彻底的消白，本实用新型提供了一种高炉水渣环保消白装置，该高炉水渣环保消白装置充分利用底滤法工艺中的滤料，在蒸汽消白过程中把未被冷凝喷淋装置凝结的小部分蒸汽引至消白池的底部，不但实现了彻底的蒸汽消白处理，而且先用蒸汽对滤料进行反冲洗、再用水对滤料进行反冲洗，能够提高对滤料的反冲洗效率、提高滤料活性，避免滤料易板结、使用寿命短的问题。In order to achieve truly complete whitening, the utility model provides an environmental protection whitening device for blast furnace water slag. A small part of the steam condensed by the condensing spray device is led to the bottom of the whitening tank, which not only realizes the complete steam whitening treatment, but also backwash the filter material with steam and then backwash the filter material with water, which can improve the efficiency of the filter. The backwashing efficiency of the filter material is improved, the activity of the filter material is improved, and the problems of easy hardening and short service life of the filter material are avoided.

本实用新型解决其技术问题所采用的技术方案是：一种高炉水渣环保消白装置，包括粒化消白塔和消白池，粒化消白塔的下部设有高炉熔渣入口和粒化器，粒化消白塔内含有上下设置的冷凝喷淋装置和喷淋水收集斗，粒化消白塔的上部设有蒸汽出口和注气口，消白池内设有过滤层和过滤管，蒸汽出口通过蒸汽输送管线与过滤管连接，蒸汽输送管线上依次设有除沫器和蒸汽风机。The technical scheme adopted by the utility model to solve the technical problem is as follows: a blast furnace water slag environmental protection whitening device includes a granulation and whitening tower and a whitening pool, and the lower part of the granulation and whitening tower is provided with a blast furnace slag inlet and a granulator. There are condensing spray devices and spray water collection buckets arranged up and down in the granulation and whitening tower. The upper part of the granulating and whitening tower is provided with a steam outlet and a gas injection port. The outlet is connected with the filter pipe through a steam conveying line, and a demister and a steam fan are arranged on the steam conveying line in turn.

蒸汽出口、注气口、冷凝喷淋装置、喷淋水收集斗、高炉熔渣入口和粒化器从上向下依次排列，注气口外连接有空气风机，通过注气口能够向粒化消白塔的上端内注入空气。The steam outlet, the gas injection port, the condensation spray device, the spray water collection bucket, the blast furnace slag inlet and the granulator are arranged in order from top to bottom. An air fan is connected to the outside of the gas injection port. Air is injected into the upper end.

喷淋水收集斗含有内筒斗、外筒斗和收集水管道，内筒斗套设于外筒斗内，内筒斗与外筒斗之间形成环形通道，外筒斗含有外斗体和内挡环，外斗体的下端与内挡环的下端之间通过环形连接板连接，外斗体与内挡环之间形成环形集水槽。The spray water collection bucket includes an inner bucket, an outer bucket and a collection water pipeline. The inner bucket is sleeved in the outer bucket, and an annular channel is formed between the inner bucket and the outer bucket. The outer bucket contains the outer bucket and the outer bucket. For the inner baffle ring, the lower end of the outer bucket body and the lower end of the inner baffle ring are connected by an annular connecting plate, and an annular water collecting groove is formed between the outer bucket body and the inner baffle ring.

内筒斗的上端高于外筒斗的上端，内筒斗的下端与外筒斗的下端齐平，内筒斗的上下两端均为开放状态，外斗体的上下两端均为开放状态，收集水管道呈水平状态，内筒斗的下端和外筒斗的下端均与收集水管道连接，内筒斗的内部与收集水管道的内部连通，所述环形连接板内设有排水通孔，环形集水槽通过排水通孔与收集水管道的内部连通。The upper end of the inner barrel is higher than the upper end of the outer barrel, the lower end of the inner barrel is flush with the lower end of the outer barrel, the upper and lower ends of the inner barrel are open, and the upper and lower ends of the outer barrel are open. , the water collection pipe is in a horizontal state, the lower end of the inner barrel and the lower end of the outer barrel are connected with the water collection pipe, the interior of the inner barrel is communicated with the interior of the water collection pipe, and the annular connecting plate is provided with a drainage through hole , the annular water collecting tank is communicated with the interior of the collecting water pipe through the drainage through hole.

内筒斗的上端外径小于粒化消白塔的内径，内筒斗的下端外径小于内挡环的内径，外斗体的上端外径等于粒化消白塔的内径，外斗体的下端与内挡环的下端齐平，收集水管道的一端位于粒化消白塔外，收集水管道的外径小于内挡环的内径。The outer diameter of the upper end of the inner barrel is smaller than the inner diameter of the granulation and whitening tower, the outer diameter of the lower end of the inner barrel is smaller than the inner diameter of the inner baffle ring, and the outer diameter of the upper end of the outer bucket is equal to the inner diameter of the granulation and whitening tower. The lower end is flush with the lower end of the inner baffle ring, one end of the collecting water pipe is located outside the granulation and whitening tower, and the outer diameter of the collecting water pipe is smaller than the inner diameter of the inner baffle ring.

粒化消白塔的侧壁上设有喷淋水入口、收集水出口和蒸汽返回口，通过喷淋水入口能够向冷凝喷淋装置供应喷淋水，通过收集水出口能够将喷淋水收集斗收集到的水排出，蒸汽返回口位于喷淋水收集斗的下方，蒸汽输送管线通过蒸汽返回管线与蒸汽返回口连接。The side wall of the granulation and whitening tower is provided with a spray water inlet, a collection water outlet and a steam return port. The spray water can be supplied to the condensation spray device through the spray water inlet, and the spray water can be collected through the collection water outlet. The water collected by the bucket is discharged, the steam return port is located below the spray water collection bucket, and the steam conveying line is connected with the steam return port through the steam return line.

冷凝喷淋装置含有至少一层高压雾化喷嘴。The condensation spray device contains at least one layer of high pressure atomizing nozzles.

过滤管位于过滤层内或过滤层以下。The filter tube is located in or below the filter layer.

过滤层含有粒径从上向下逐渐变大的滤料。The filter layer contains filter material whose particle size gradually increases from top to bottom.

消白池的上端面高于过滤层的上表面。The upper end surface of the whitening pool is higher than the upper surface of the filter layer.

1、本实用新型能够充分利用冷凝喷淋装置和底滤法工艺中的滤料实现彻底的蒸汽消白处理。1. The utility model can make full use of the condensing spray device and the filter material in the bottom filtration process to achieve complete steam whitening treatment.

2、本实用新型可以对冲渣粒化过程中的蒸汽实现全部回收，实现水资源的循环利用。2. The utility model can realize all the recovery of steam in the process of flushing slag granulation and realize the recycling of water resources.

3、本实用新型能够提高对滤料的反冲洗效率、提高滤料活性，避免滤料易板结、使用寿命短的问题。3. The utility model can improve the backwashing efficiency of the filter material, improve the activity of the filter material, and avoid the problems that the filter material is easy to harden and the service life is short.

4、本实用新型不但适用于高炉新建工程，而且适用于现有高炉水渣系统的环保改造。4. The utility model is not only suitable for new construction of blast furnaces, but also for environmental protection transformation of existing blast furnace water slag systems.

附图说明Description of drawings

构成本申请的一部分的说明书附图用来提供对本实用新型的进一步理解，本实用新型的示意性实施例及其说明用于解释本实用新型，并不构成对本实用新型的不当限定。The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

图1是本实用新型所述高炉水渣环保消白装置的结构示意图。Figure 1 is a schematic structural diagram of the blast furnace water slag environmental protection whitening device according to the present invention.

图2是图1中沿A-A方向的剖视图。FIG. 2 is a cross-sectional view taken along the A-A direction in FIG. 1 .

图3是粒化消白塔在喷淋水收集斗部位的示意图。Figure 3 is a schematic diagram of the part of the granulation and whitening tower in the spray water collection bucket.

图4是外斗体和收集水管道的俯视图。Figure 4 is a top view of the outer bucket and the collection water conduit.

图5是图4中沿B-B方向的剖视图。FIG. 5 is a cross-sectional view taken along the direction B-B in FIG. 4 .

1、粒化器；2、粒化消白塔；3、喷淋水收集斗；4、冷凝喷淋装置；5、蒸汽风机；6、消白池；7、过滤层；8、过滤管；9、高炉熔渣入口；10、蒸汽出口；11、蒸汽输送管线；12、喷淋水入口；13、收集水出口；14、除沫器；15、空气风机；16、注气口；17、蒸汽返回口；18、蒸汽返回管线；19、阀门；1. Granulator; 2. Granulation and whitening tower; 3. Spray water collection bucket; 4. Condensing spray device; 5. Steam fan; 6. Whitening pool; 7. Filter layer; 8. Filter tube; 9 , blast furnace slag inlet; 10, steam outlet; 11, steam conveying pipeline; 12, spray water inlet; 13, collecting water outlet; 14, demister; 15, air fan; 16, gas injection port; 17, steam return port; 18, steam return line; 19, valve;

31、内筒斗；32、外筒斗；33、收集水管道；34、外斗体；35、内挡环；36、排水通孔；37、环形集水槽；38、冷凝水与喷淋水；39、含硫蒸汽。31. Inner barrel; 32. Outer barrel; 33. Water collection pipe; 34. Outer barrel; 35. Inner baffle ring; 36. Drainage through hole; ; 39. Sulfur-containing steam.

具体实施方式Detailed ways

需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本实用新型。It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

一种高炉水渣环保消白装置，包括粒化消白塔2和消白池6，粒化消白塔2的下部设有高炉熔渣入口9和粒化器1，粒化消白塔2内含有上下设置的冷凝喷淋装置4和喷淋水收集斗3，粒化消白塔2的上部设有蒸汽出口10和注气口16，消白池6内设有过滤层7和过滤管8，蒸汽出口10通过蒸汽输送管线11与过滤管8连接，蒸汽输送管线11上依次设有除沫器14和蒸汽风机5，如图1所示。A blast furnace water slag environmental protection whitening device, comprising agranulation whitening tower 2 and awhitening pool 6, the lower part of thegranulation whitening tower 2 is provided with a blastfurnace slag inlet 9 and agranulator 1, and thegranulation whitening tower 2 is provided with a blastfurnace slag inlet 9 and agranulator 1. Containing the condensingspray device 4 and the spraywater collecting bucket 3 arranged up and down, the upper part of the granulation and whiteningtower 2 is provided with asteam outlet 10 and agas injection port 16, and thewhitening tank 6 is provided with afilter layer 7 and afilter pipe 8, and the steam Theoutlet 10 is connected to thefilter pipe 8 through asteam conveying line 11, and thesteam conveying line 11 is provided with ademister 14 and asteam blower 5 in sequence, as shown in FIG. 1 .

蒸汽出口10通过蒸汽输送管线11与过滤管8连接，未被凝结的剩余部分含硫蒸汽将从蒸汽出口10排出经过除沫器14除沫后通过蒸汽输送管线11进入过滤管8内，即把未被冷凝喷淋装置凝结的小部分蒸汽引至消白池的底部内。这样，不但实现了彻底的蒸汽消白处理，而且先用蒸汽对滤料进行反冲洗、再用水对滤料进行反冲洗，能够提高对滤料的反冲洗效率、提高滤料活性，避免滤料易板结、使用寿命短的问题。Thesteam outlet 10 is connected to thefilter tube 8 through thesteam delivery line 11, and the remaining part of the sulfur-containing steam that is not condensed will be discharged from thesteam outlet 10 through thedemister 14 to remove foam and then enter thefilter tube 8 through thesteam delivery line 11, that is, the A small part of the steam that is not condensed by the condensation spray device is led to the bottom of the whitening tank. In this way, not only a complete steam whitening treatment is realized, but also the filter material is backwashed with steam first, and then backwashed with water, which can improve the backwash efficiency of the filter material, improve the activity of the filter material, and avoid the filter material. Easy to harden and short service life.

在本实施例中，高炉熔渣入口9与粒化器1上下对应设置，蒸汽出口10、注气口16、冷凝喷淋装置4、喷淋水收集斗3、高炉熔渣入口9和粒化器1从上向下依次排列，注气口16外连接有空气风机15，通过注气口16能够向粒化消白塔2的上端内注入空气，通过调节空气流入量可以调节粒化消白塔2顶部的负压值。In this embodiment, the blastfurnace slag inlet 9 and thegranulator 1 are arranged correspondingly up and down, thesteam outlet 10, thegas injection port 16, thecondensation spray device 4, the spraywater collection bucket 3, the blastfurnace slag inlet 9 and thegranulator 1. Arranged in order from top to bottom, theair injection port 16 is connected with anair fan 15, and air can be injected into the upper end of the granulation and whiteningtower 2 through theair injection port 16, and the top of the granulation and whiteningtower 2 can be adjusted by adjusting the air inflow. negative pressure value.

在本实施例中，粒化消白塔2的侧壁上还设有喷淋水入口12、收集水出口13和蒸汽返回口17，蒸汽输送管线11通过蒸汽返回管线18与蒸汽返回口17连接。通过注气口16和空气风机15能够向粒化消白塔2的上端内注入空气，通过调节空气的注入量可以调节粒化消白塔2顶部的负压值。通过喷淋水入口12能够向冷凝喷淋装置4供应喷淋水，通过收集水出口13能够将喷淋水收集斗3收集到的水排出。In this embodiment, aspray water inlet 12, acollection water outlet 13 and asteam return port 17 are also provided on the side wall of the granulation and whiteningtower 2, and thesteam transport line 11 is connected to thesteam return port 17 through thesteam return line 18. . Air can be injected into the upper end of the granulation and whiteningtower 2 through theair injection port 16 and theair fan 15, and the negative pressure value at the top of the granulating and whiteningtower 2 can be adjusted by adjusting the injection amount of air. The spray water can be supplied to thecondensation spray device 4 through thespray water inlet 12 , and the water collected by the spraywater collecting bucket 3 can be discharged through the collectingwater outlet 13 .

蒸汽返回口17位于喷淋水收集斗3的下方，蒸汽输送管线11内的蒸汽可以通过蒸汽返回管线18返回至粒化消白塔2内，重新喷淋冷凝。即该含硫蒸汽中的剩余部分可以进入消白池6的过滤管8内，或者该含硫蒸汽中的剩余部分也可以进入粒化消白塔2内，蒸汽输送管线11和蒸汽返回管线18上均设有阀门19，以控制蒸汽输送管线11内含硫蒸汽的流向。Thesteam return port 17 is located below the spraywater collection hopper 3, and the steam in thesteam conveying line 11 can be returned to the granulation and whiteningtower 2 through thesteam return line 18, and sprayed and condensed again. That is, the remaining part of the sulfur-containing steam can enter thefilter pipe 8 of thewhitening tank 6, or the remaining part of the sulfur-containing steam can also enter the granulation and whiteningtower 2, and thesteam transfer line 11 and thesteam return line 18.Valves 19 are provided to control the flow direction of the sulfur-containing steam in thesteam conveying line 11 .

喷淋水收集斗3可以为现有技术中的产品，或者，在本实用新型中，喷淋水收集斗3含有内筒斗31、外筒斗32和收集水管道33，内筒斗31套设于外筒斗32内，内筒斗31与外筒斗32之间形成环形通道。内筒斗31的轴线、外筒斗32的轴线和粒化消白塔2的轴线重合。内筒斗31为顶端朝下底端朝上的圆锥筒形结构，外筒斗32含有外斗体34和内挡环35，内挡环35套设于外斗体34的下端内，内挡环35的轴线与外斗体34的轴线重合，外斗体34为顶端朝下底端朝上的圆锥筒形结构，外斗体34的下端与内挡环35的下端之间通过环形连接板密封连接，外斗体34与内挡环35之间形成环形集水槽37。The spraywater collection bucket 3 can be a product in the prior art, or, in the present utility model, the spraywater collection bucket 3 includes aninner bucket 31, anouter bucket 32 and acollection water pipeline 33, and theinner bucket 31 sets It is arranged in theouter cylinder bucket 32, and an annular channel is formed between theinner cylinder bucket 31 and theouter cylinder bucket 32. The axis of theinner bucket 31, the axis of theouter bucket 32 and the axis of the granulation and whiteningtower 2 coincide. Theinner barrel 31 is a conical cylindrical structure with the top down and the bottom up. Theouter barrel 32 includes anouter barrel 34 and aninner retaining ring 35. Theinner retaining ring 35 is sleeved in the lower end of theouter barrel 34. The axis of thering 35 coincides with the axis of theouter bucket body 34. Theouter bucket body 34 is a conical cylindrical structure with the top down and the bottom end up. The lower end of theouter bucket 34 and the lower end of theinner baffle ring 35 pass through an annular connecting plate. In a sealed connection, an annularwater collecting groove 37 is formed between theouter bucket body 34 and theinner baffle ring 35 .

内筒斗31的上端高于外筒斗32的上端，内筒斗31的下端与外筒斗32的下端齐平。内筒斗31的上下两端均为开放状态，外斗体34的上下两端均为开放状态，收集水管道33呈水平状态，内筒斗31的下端和外筒斗32的下端均与收集水管道33连接，内筒斗31的内部与收集水管道33的内部连通，所述环形连接板内设有排水通孔36，环形集水槽37通过排水通孔36与收集水管道33的内部连通。The upper end of theinner barrel 31 is higher than the upper end of theouter barrel 32 , and the lower end of theinner barrel 31 is flush with the lower end of theouter barrel 32 . The upper and lower ends of theinner bucket 31 are in an open state, the upper and lower ends of theouter bucket 34 are open, and thewater collection pipe 33 is in a horizontal state. Thewater pipe 33 is connected, the interior of theinner barrel 31 is communicated with the interior of the collectingwater pipe 33, the annular connecting plate is provided with a drainage throughhole 36, and the annularwater collecting groove 37 is communicated with the interior of the collectingwater pipe 33 through the drainage throughhole 36 .

内筒斗31的上端外径小于粒化消白塔2的内径，内筒斗31的上端与粒化消白塔2的内表面之间形成环形空间。内筒斗31的下端外径小于内挡环35的内径，外斗体34的上端外径等于粒化消白塔2的内径，外斗体34与粒化消白塔2连接固定，外斗体34的下端与内挡环35的下端齐平，即内筒斗31的下端、外斗体34的下端和内挡环35的下端齐平。收集水管道33的一端位于粒化消白塔2外，收集水管道33的外径小于内挡环35的内径，收集水管道33的一端为收集水出口13，如图1至图5所示。The outer diameter of the upper end of theinner bucket 31 is smaller than the inner diameter of the granulation and whiteningtower 2 , and an annular space is formed between the upper end of theinner bucket 31 and the inner surface of the granulating and whiteningtower 2 . The outer diameter of the lower end of theinner bucket 31 is smaller than the inner diameter of theinner baffle ring 35, the outer diameter of the upper end of theouter bucket body 34 is equal to the inner diameter of the granulation and whiteningtower 2, theouter bucket body 34 is connected and fixed with the granulation and whiteningtower 2, and the outer bucket is fixed. The lower end of thebody 34 is flush with the lower end of theinner baffle ring 35 , that is, the lower end of theinner bucket 31 , the lower end of theouter bucket body 34 and the lower end of theinner baffle ring 35 are flush. One end of thecollection water pipe 33 is located outside the granulation and whiteningtower 2, the outer diameter of thecollection water pipe 33 is smaller than the inner diameter of theinner baffle ring 35, and one end of thecollection water pipe 33 is thecollection water outlet 13, as shown in Figures 1 to 5 .

使用时，含硫蒸汽39向上移动并依次穿过内挡环35的下端、所述环形通道以及所述环形空间，大部分的含硫蒸汽在雾化喷淋水的作用下成为冷凝水。该冷凝水与喷淋水38的一部分落入内筒斗31的下端，然后进入收集水管道33并从收集水出口13排出。该冷凝水与喷淋水38的另一部分落入外筒斗32下端的环形集水槽37，然后进入收集水管道33并从收集水出口13排出，如图3所示。In use, the sulfur-containingsteam 39 moves upward and passes through the lower end of theinner baffle ring 35, the annular channel and the annular space in sequence, and most of the sulfur-containing steam becomes condensed water under the action of the atomized spray water. A part of the condensed water and thespray water 38 falls into the lower end of theinner bucket 31 , then enters the collectingwater pipe 33 and is discharged from the collectingwater outlet 13 . The other part of the condensed water and thespray water 38 falls into the annularwater collecting groove 37 at the lower end of theouter bucket 32, and then enters the collectingwater pipe 33 and is discharged from the collectingwater outlet 13, as shown in FIG. 3 .

在本实施例中，冷凝喷淋装置4含有至少一层高压雾化喷嘴，冷凝喷淋装置4能够喷淋冷水以使高温含硫蒸汽冷凝形成冷凝水，该冷凝水将汇集于喷淋水收集斗3的收集区域内。蒸汽出口10位于粒化消白塔2的顶部，蒸汽输送管线11上设有除沫器14和蒸汽风机5，蒸汽风机5用于使从蒸汽出口10排出的剩余含硫蒸汽通过蒸汽输送管线11进入过滤管8内或返回至粒化消白塔2内。In this embodiment, thecondensation spray device 4 contains at least one layer of high-pressure atomizing nozzles, and thecondensation spray device 4 can spray cold water to condense the high-temperature sulfur-containing steam to form condensation water, which will be collected in the spray water for collection within the collection area ofbucket 3. Thesteam outlet 10 is located at the top of the granulation and whiteningtower 2, and thesteam conveying line 11 is provided with ademister 14 and asteam fan 5. Thesteam fan 5 is used to make the remaining sulfur-containing steam discharged from thesteam outlet 10 pass through thesteam conveying line 11. Enter into thefilter tube 8 or return to the granulation and whiteningtower 2.

在本实施例中，过滤管8的管壁上多个过滤通孔，剩余含硫蒸汽进入过滤管8后经过该过滤通孔后可以进入过滤层7内，如图2所示。消白池6的构造与现有过滤池的构造的基本相同，过滤管8位于过滤层7内或过滤层7以下，优选过滤管8位于过滤层7的下部，过滤层7内含有粒径从上向下逐渐变大的滤料。In this embodiment, there are a plurality of filter through holes on the pipe wall of thefilter tube 8, and the remaining sulfur-containing steam enters thefilter tube 8 and then passes through the filter through holes and then enters thefilter layer 7, as shown in FIG. 2 . The structure of thewhitening pool 6 is basically the same as that of the existing filter pool, and thefilter tube 8 is located in thefilter layer 7 or below thefilter layer 7, preferably thefilter tube 8 is located at the lower part of thefilter layer 7, and thefilter layer 7 contains the particle size from the top. Downward progressively larger filter media.

下面介绍该高炉水渣环保消白装置的工作过程。The working process of the blast furnace water slag environmental protection whitening device is described below.

高温熔渣(1350℃-1500℃)从高炉熔渣入口9进入粒化消白塔2，大量高速粒化水(约40℃-45℃)在粒化器1喷出进入粒化消白塔2，该高温熔渣在粒化水的作用下完成粒化，并形成渣水混合物以及大量的含硫蒸汽(约80℃-100℃)。The high temperature slag (1350℃-1500℃) enters the granulation and whiteningtower 2 from the blastfurnace slag inlet 9, and a large amount of high-speed granulated water (about 40℃-45℃) is ejected from thegranulator 1 and enters the granulation and whitening tower. 2. The high-temperature molten slag is granulated under the action of granulating water, and forms a slag-water mixture and a large amount of sulfur-containing steam (about 80°C-100°C).

冲渣水从粒化消白塔2的下部的冲渣水入口进入粒化消白塔2，将该渣水混合物从粒化消白塔2的下部的水渣出口冲出粒化消白塔2外。该含硫蒸汽在蒸汽风机5的作用下，在粒化消白塔2内部向上运动。The slag washing water enters the granulation andbleaching tower 2 from the slag washing water inlet at the lower part of the granulation andbleaching tower 2, and the slag-water mixture is flushed out of the granulation and bleaching tower from the water slag outlet at the lower part of the granulation andbleaching tower 2. 2 outside. The sulfur-containing steam moves upward in the granulation and whiteningtower 2 under the action of thesteam fan 5 .

冷凝喷淋装置4喷出喷淋水(约40℃-45℃)后在粒化消白塔2内部形成雾化状态，雾化的喷淋水均匀布满粒化消白塔2内部空间。该含硫蒸汽向上穿过喷淋水收集斗3进入雾化水区域，大部分的含硫蒸汽在雾化喷淋水的作用下成为冷凝水，该冷凝水与喷淋水一起落入冷凝喷淋装置4下方的喷淋水收集斗3。喷淋水收集斗3收集到的水(即上述冷凝水和喷淋水)从收集水出口13排出粒化消白塔2后可以送至冷却塔。After thecondensation spray device 4 sprays spray water (about 40°C-45°C), an atomized state is formed inside the granulation and whiteningtower 2 . The sulfur-containing steam passes upward through the spraywater collection bucket 3 and enters the atomized water area, and most of the sulfur-containing steam becomes condensed water under the action of the atomized spray water, and the condensed water and the spray water fall into the condensation spray together with the spray water. The spraywater collection bucket 3 below theshower device 4 is installed. The water collected by the spray water collecting bucket 3 (ie the above-mentioned condensed water and spray water) is discharged from the collectingwater outlet 13 from the granulation and whiteningtower 2 and can be sent to the cooling tower.

蒸汽风机5将未被雾化喷淋水的凝结的剩余部分的含硫蒸汽引入蒸汽输送管线11，该含硫蒸汽中的剩余部分进入除沫器14除沫，通过注气口16和空气风机15能够向粒化消白塔2的上端内注入空气，通过调节空气流入量可以调节粒化塔顶部的负压值。Thesteam fan 5 introduces the sulfur-containing steam of the remaining part of the condensation of the spray water that is not atomized into thesteam conveying line 11, and the remaining part of the sulfur-containing steam enters thedemister 14 for defoaming, and passes through thegas injection port 16 and theair fan 15. Air can be injected into the upper end of the granulation and whiteningtower 2, and the negative pressure value at the top of the granulation tower can be adjusted by adjusting the air inflow.

经过除沫处理的所述含硫蒸汽中的剩余部分通过蒸汽输送管线11进入过滤管8内，或经过除沫处理的所述含硫蒸汽中的剩余部分依次通过蒸汽输送管线11和蒸汽返回管线18进入粒化消白塔2的下部内。The remaining part of the sulfur-containing steam that has undergone the defoaming treatment enters thefilter pipe 8 through thesteam conveying line 11, or the remaining part of the sulfur-containing steam that has undergone the defoaming treatment passes through thesteam conveying line 11 and the steam return line in turn. 18 enters the lower part of the granulation and whiteningtower 2.

进入过滤管8内的所述剩余部分的含硫蒸汽从过滤管8的过滤通孔排出向上进入消白池6的过滤层7，所述剩余部分的含硫蒸汽向上移动对过滤层7的滤料进行反冲洗，消白池6内含有沉积水，该沉积水的水面通常位于过滤层7的上表面和消白池6的上端面之间，所述剩余部分的含硫蒸汽从过滤管8的过滤通孔排出进入消白池6后，该沉积水将全部吸收所述剩余部分的含硫蒸汽，从而实现真正彻底的消白。The remaining part of the sulfur-containing steam entering thefilter tube 8 is discharged from the filter through holes of thefilter tube 8 and enters thefilter layer 7 of thewhitening tank 6, and the remaining part of the sulfur-containing steam moves upward to the filter material of thefilter layer 7. Backwashing is performed, and thewhitening tank 6 contains sedimentary water, and the water surface of the sedimentary water is usually located between the upper surface of thefilter layer 7 and the upper end surface of thewhitening tank 6, and the remaining part of the sulfur-containing steam is filtered from thefilter pipe 8. Pass through. After the holes are discharged into thewhitening tank 6, the deposited water will completely absorb the remaining part of the sulfur-containing steam, so as to achieve truly complete whitening.

下面介绍一种高炉熔渣底滤法消白方法，所述高炉熔渣底滤法消白方法采用了上述的高炉水渣环保消白装置，所述高炉熔渣底滤法消白方法包括以下步骤：A method for eliminating whitening by bottom filtration of blast furnace slag is introduced below. The method for eliminating whitening by bottom filtering of blast furnace slag adopts the above-mentioned blast furnace water slag environmental protection whitening device, and the method for eliminating whitening by bottom filtering of blast furnace slag includes the following: step:

步骤1：高温熔渣(1350℃-1500℃)与粒化水(约40℃-45℃)相遇后产生渣水混合物以及大量的含硫蒸汽(约80℃-100℃)；Step 1: After the high temperature molten slag (1350℃-1500℃) meets the granulated water (about 40℃-45℃), a mixture of slag and water and a large amount of sulfur-containing steam (about 80℃-100℃) are generated;

步骤2：所述含硫蒸汽向上运动，冷凝喷淋装置4喷出喷淋水(约40℃-45℃)喷淋所述含硫蒸汽，该含硫蒸汽中的大部分在该喷淋水的作用下成为冷凝水；Step 2: The sulfur-containing steam moves upward, and thecondensation spray device 4 sprays spray water (about 40°C-45°C) to spray the sulfur-containing steam, and most of the sulfur-containing steam is in the spray water. becomes condensed water under the action of

步骤3：该含硫蒸汽中的剩余部分进入除沫器14除沫；Step 3: The remaining part of the sulfur-containing steam enters thedemister 14 for defoaming;

步骤4：该含硫蒸汽中的剩余部分进入消白池6(消白池6内含有沉积水)的过滤管8内或该含硫蒸汽中的剩余部分进入粒化消白塔2的下部内；Step 4: the remainder in this sulfur-containing steam enters thefilter tube 8 of the whitening tank 6 (thewhitening tank 6 contains sedimentary water) or the remainder in the sulfur-containing steam enters the lower part of the granulation and whiteningtower 2;

步骤5：该含硫蒸汽中的剩余部分从过滤管8排出并向上进入消白池6的过滤层7。Step 5: The remaining part of the sulfur-containing steam is discharged from thefilter tube 8 and enters thefilter layer 7 of thewhitening tank 6 upward.

以上所述，仅为本实用新型的具体实施例，不能以其限定实用新型实施的范围，所以其等同组件的置换，或依本实用新型专利保护范围所作的等同变化与修饰，都应仍属于本专利涵盖的范畴。另外，本实用新型中的技术特征与技术特征之间、技术特征与技术方案、技术方案与技术方案之间均可以自由组合使用。The above descriptions are only specific examples of the present invention, and cannot limit the scope of implementation of the present invention. Therefore, the replacement of the equivalent components thereof, or the equivalent changes and modifications made according to the scope of the patent protection of the present invention, shall still belong to the scope of the present invention. Scope covered by this patent. In addition, technical features and technical features, technical features and technical solutions, and technical solutions and technical solutions in the present invention can be freely combined and used.

Claims (10)

Translated fromChinese

1.一种高炉水渣环保消白装置，其特征在于，该高炉水渣环保消白装置包括粒化消白塔(2)和消白池(6)，粒化消白塔(2)的下部设有高炉熔渣入口(9)和粒化器(1)，粒化消白塔(2)内含有上下设置的冷凝喷淋装置(4)和喷淋水收集斗(3)，粒化消白塔(2)的上部设有蒸汽出口(10)和注气口(16)，消白池(6)内设有过滤层(7)和过滤管(8)，蒸汽出口(10)通过蒸汽输送管线(11)与过滤管(8)连接，蒸汽输送管线(11)上依次设有除沫器(14)和蒸汽风机(5)。1. a blast furnace water slag environmental protection whitening device is characterized in that, this blast furnace water slag environmental protection whitening device comprises a granulation whitening tower (2) and a whitening pool (6), the lower part of the granulation whitening tower (2) A blast furnace slag inlet (9) and a granulator (1) are provided, and the granulation and whitening tower (2) contains a condensing spray device (4) and a spray water collecting bucket (3) arranged up and down. The upper part of the white tower (2) is provided with a steam outlet (10) and a gas injection port (16), a filter layer (7) and a filter pipe (8) are arranged in the whitening tank (6), and the steam outlet (10) passes through the steam conveying pipeline (11) is connected with the filter pipe (8), and a demister (14) and a steam blower (5) are arranged on the steam conveying pipeline (11) in sequence.2.根据权利要求1所述的高炉水渣环保消白装置，其特征在于，蒸汽出口(10)、注气口(16)、冷凝喷淋装置(4)、喷淋水收集斗(3)、高炉熔渣入口(9)和粒化器(1)从上向下依次排列，注气口(16)外连接有空气风机(15)，通过注气口(16)能够向粒化消白塔(2)的上端内注入空气。2. The blast furnace water slag environmental protection whitening device according to claim 1, wherein the steam outlet (10), the gas injection port (16), the condensation spray device (4), the spray water collection bucket (3), The blast furnace slag inlet (9) and the granulator (1) are arranged in order from top to bottom, an air blower (15) is connected to the outside of the gas injection port (16), and the granulation and whitening tower (2) can be fed through the gas injection port (16). ) to inject air into the upper end.3.根据权利要求1所述的高炉水渣环保消白装置，其特征在于，喷淋水收集斗(3)含有内筒斗(31)、外筒斗(32)和收集水管道(33)，内筒斗(31)套设于外筒斗(32)内，内筒斗(31)与外筒斗(32)之间形成环形通道，外筒斗(32)含有外斗体(34)和内挡环(35)，外斗体(34)的下端与内挡环(35)的下端之间通过环形连接板连接，外斗体(34)与内挡环(35)之间形成环形集水槽(37)。3. The blast furnace water slag environmental protection whitening device according to claim 1, wherein the spray water collection hopper (3) contains an inner barrel hopper (31), an outer barrel hopper (32) and a collection water pipeline (33) , the inner barrel (31) is sleeved in the outer barrel (32), an annular channel is formed between the inner barrel (31) and the outer barrel (32), and the outer barrel (32) contains the outer barrel (34) and the inner baffle ring (35), the lower end of the outer bucket body (34) and the lower end of the inner baffle ring (35) are connected by an annular connecting plate, and an annular shape is formed between the outer bucket body (34) and the inner baffle ring (35). Sump (37).4.根据权利要求3所述的高炉水渣环保消白装置，其特征在于，内筒斗(31)的上端高于外筒斗(32)的上端，内筒斗(31)的下端与外筒斗(32)的下端齐平，内筒斗(31)的上下两端均为开放状态，外斗体(34)的上下两端均为开放状态，收集水管道(33)呈水平状态，内筒斗(31)的下端和外筒斗(32)的下端均与收集水管道(33)连接，内筒斗(31)的内部与收集水管道(33)的内部连通，所述环形连接板内设有排水通孔(36)，环形集水槽(37)通过排水通孔(36)与收集水管道(33)的内部连通。4. The blast furnace water slag environmental protection whitening device according to claim 3, wherein the upper end of the inner barrel hopper (31) is higher than the upper end of the outer barrel hopper (32), and the lower end of the inner barrel hopper (31) and the outer The lower end of the bucket (32) is flush, the upper and lower ends of the inner bucket (31) are open, the upper and lower ends of the outer bucket (34) are open, and the water collection pipe (33) is in a horizontal state, The lower end of the inner bucket (31) and the lower end of the outer bucket (32) are both connected to the water collection pipe (33), the interior of the inner bucket (31) is communicated with the interior of the collection water pipe (33), and the annular connection A drainage through hole (36) is arranged in the plate, and the annular water collecting tank (37) is communicated with the inside of the water collection pipe (33) through the drainage through hole (36).5.根据权利要求4所述的高炉水渣环保消白装置，其特征在于，内筒斗(31)的上端外径小于粒化消白塔(2)的内径，内筒斗(31)的下端外径小于内挡环(35)的内径，外斗体(34)的上端外径等于粒化消白塔(2)的内径，外斗体(34)的下端与内挡环(35)的下端齐平，收集水管道(33)的一端位于粒化消白塔(2)外，收集水管道(33)的外径小于内挡环(35)的内径。5. The blast furnace water slag environmental protection whitening device according to claim 4, wherein the outer diameter of the upper end of the inner barrel hopper (31) is smaller than the inner diameter of the granulation and whitening tower (2), and the inner diameter of the inner barrel hopper (31) The outer diameter of the lower end is smaller than the inner diameter of the inner baffle ring (35), the outer diameter of the upper end of the outer bucket body (34) is equal to the inner diameter of the granulation and whitening tower (2), the lower end of the outer bucket body (34) and the inner baffle ring (35) The lower end of the water collection pipe (33) is located outside the granulation and whitening tower (2), and the outer diameter of the collection water pipe (33) is smaller than the inner diameter of the inner baffle ring (35).6.根据权利要求1所述的高炉水渣环保消白装置，其特征在于，粒化消白塔(2)的侧壁上设有喷淋水入口(12)、收集水出口(13)和蒸汽返回口(17)，通过喷淋水入口(12)能够向冷凝喷淋装置(4)供应喷淋水，通过收集水出口(13)能够将喷淋水收集斗(3)收集到的水排出，蒸汽返回口(17)位于喷淋水收集斗(3)的下方，蒸汽输送管线(11)通过蒸汽返回管线(18)与蒸汽返回口(17)连接。6. blast furnace water slag environmental protection whitening device according to claim 1, is characterized in that, the side wall of granulation whitening tower (2) is provided with spray water inlet (12), collection water outlet (13) and The steam return port (17) can supply spray water to the condensation spray device (4) through the spray water inlet (12), and the water collected by the spray water collection bucket (3) can be collected through the collection water outlet (13). For discharge, the steam return port (17) is located below the spray water collecting bucket (3), and the steam conveying line (11) is connected to the steam return port (17) through the steam return line (18).7.根据权利要求1所述的高炉水渣环保消白装置，其特征在于，冷凝喷淋装置(4)含有至少一层高压雾化喷嘴。7. The blast furnace water slag environmental protection whitening device according to claim 1, characterized in that, the condensation spray device (4) contains at least one layer of high-pressure atomizing nozzles.8.根据权利要求1所述的高炉水渣环保消白装置，其特征在于，过滤管(8)位于过滤层(7)内或过滤层(7)以下。8. The blast furnace water slag environmental protection whitening device according to claim 1, wherein the filter tube (8) is located in the filter layer (7) or below the filter layer (7).9.根据权利要求1所述的高炉水渣环保消白装置，其特征在于，过滤层(7)含有粒径从上向下逐渐变大的滤料。9 . The blast furnace water slag environmental protection whitening device according to claim 1 , wherein the filter layer ( 7 ) contains a filter material whose particle size gradually increases from top to bottom. 10 .10.根据权利要求1所述的高炉水渣环保消白装置，其特征在于，消白池(6)的上端面高于过滤层(7)的上表面。10 . The blast furnace water slag environmental protection whitening removal device according to claim 1 , wherein the upper end surface of the whitening pool ( 6 ) is higher than the upper surface of the filter layer ( 7 ). 11 .

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