CN103615731A - Pulverized coal furnace slag removing system - Google Patents

Abstract

The invention relates to a pulverized coal furnace slag removing system. The pulverized coal furnace slag removing system mainly comprises a scraper slag fishing machine and a dewatering bin, wherein the scraper slag fishing machine is located below a slag well and connected with a slag discharge port of the slag well. The pulverized coal furnace slag removing system is characterized in that the pulverized coal furnace slag removing system further comprises a pipe chain machine, the pipe chain machine is provided with a feed hopper, a discharge port, a pipe chain, a drive device and a transmission pipeline, the feed hopper is connected with a slag outlet of the scraper slag fishing machine in a sealed mode, the discharge port is connected with the dewatering bin, the pipe chain is provided with a plurality of chain pieces, the pipe chain is arranged inside the transmission pipeline, the transmission pipeline is arranged to be in a sealed circulating mode, a pipeline steering bending position is provided with a guide device, and the scraper slag fishing machine is communicated with the dewatering bin through the pipe chain machine. According to the pulverized coal furnace slag removing system, work efficiency is greatly improved, cost invested in the earlier stage is saved, work efficiency of the slag fishing machine is improved, meanwhile, maintenance cost in the later period is reduced, accumulated slag is reduced, safety of a boiler is ensured, and the service life of the device is successfully prolonged.

Description

A kind of coal-powder boiler slag removing system

Technical field

The present invention relates to a kind of slag removal equipment, relate in particular to a kind of coal-powder boiler slag removing system.

Background technology

Traditional coal stove powder slagging-off mode is mainly by drainage bin on the normally direct oblique ascension of existing submerged slag conveyor slagging-off, because of the height of drainage bin larger, the oblique ascension angle of submerged slag conveyor is difficult for surpassing the cause of 33 °, the entire length of dragveyer is very large, and chain, very easily appears falling in the excessive series of problems that brings of length, chain rupture, the problems such as serious wear, this just requires to increase to the intensity of chain and rigidity, in order to avoid there is oarse-grained clinker fall while blocking by stretch bending or pull apart.

Because conduction chain and scraper plate are directly to slide at bottom land, so not only resistance is large, and wearing and tearing are also more serious, and de-chain causes the increase of repair and maintenance amount on the one hand, has also increased the weight of on the other hand the amount of labour of scarfing cinder.The accumulated slag that when serious, de-chain causes can affect the safe operation of boiler, on the whole, adopts traditional deslagging method and slag removal equipment, can cause high cost, and up-front investment is too large.

Summary of the invention

The problem that the invention exists for above-mentioned prior art, a kind of new slagging-off scheme is proposed, not only shortened the entire length of dragveyer, greatly saved early investment cost, improve dragveyer operating efficiency, also reduced later maintenance cost simultaneously, reduced accumulated slag amount, guarantee the security of boiler, and the life-span of successful extension device itself.

The technical scheme content that the invention proposes for above-mentioned defect is: a kind of coal-powder boiler slag removing system mainly comprises submerged slag conveyor and drainage bin, and submerged slag conveyor is positioned at slag downhole, docks with the lower cinder notch of slag well; It is characterized in that: also comprise pipe chain machine, described pipe chain machine is with a feed hopper being tightly connected with described submerged slag conveyor slag notch, discharging opening that drainage bin is connected, with pipe chain, drive unit and the transport pipeline of some chain sheets; Described pipe chain is arranged on transport pipeline inside; Described transport pipeline is arranged to closed circulation formula, and pipeline turns to bending position to be provided with guider; Described submerged slag conveyor is communicated with described drainage bin by described pipe chain machine.

Preferably: described submerged slag conveyor mainly comprises drive unit, upper and lower two cabin bodies and the rotating scraper chain that circulates between two cabin bodies; Preferably: affixed several equally distributed scraper plates on described scraper chain, described scraper plate by scraper chain around upper and lower two cabin body cycle operation; Preferably: described scraper chain is forwarded to lower cabin body or is provided with guider by the turning point that lower cabin body forwards upper-deck cabin body to by upper-deck cabin body; Described cabin body is with a slag inlet and a slag notch; Described slag inlet is arranged on cinder notch below, slag down-hole; The feed hopper of described slag notch and described pipe chain machine is tightly connected.

Preferably: described submerged slag conveyor mainly comprises updip active section that a drive unit, body one end, Ti,Yu cabin, upper and lower two cabins are affixed and the scraper chain of cycle operation; Described upper-deck cabin body be provided with a level and smooth bottom surface and described updip active section affixed; Affixed several equally distributed scraper plates on described scraper chain; Described scraper plate by scraper chain around upper and lower two cabin bodies and updip active section cycle operation; The slag notch that the free end setting of described updip active section and pipe chain machine feed hopper are tightly connected.

Preferably: the inclination active section of described submerged slag conveyor and the angle between horizontal plane are less than 90 degree.

Preferably: on the duct wall of described transport pipeline, be provided with inspection hole, described transport pipeline wall adopts cast stone to be made.

Preferably: described chain sheet wears and is fixed on pipe chain, and the edge of chain sheet is provided with wear-resisting ring, and described wear-resisting ring and duct wall are slidably connected.

Preferably: described drive unit is arranged on one end that pipe chain machine is connected with drainage bin.

Preferably: at least 10 meters of the height that described drainage bin arranges.

Beneficial effect of the present invention: the present invention is by transforming the self structure of traditional screeds dragveyer, and the submerged slag conveyor that passes through of creationary proposition has solved with being used in combination of pipe chain machine the technical problem existing in prior art, greatly improved operating efficiency, saved early investment cost, improve dragveyer operating efficiency, also reduced later maintenance cost simultaneously, reduced accumulated slag amount, guarantee the security of boiler, and the life-span of successful extension device itself.

Meanwhile, the overall length that has greatly reduced submerged slag conveyor that is used in combination by submerged slag conveyor with pipe chain machine, makes submerged slag conveyor can not be subject to the restriction of length and angle; Also overcome that pipe chain acc power is little can not carry out to charging the defect of fragmentation, moistening balling; Being used in combination of the two not only improved operating efficiency, reduced maintenance cost, increased equipment service life, also greatly dwindled manufacturing cost, equipment place adaptability is increased greatly, and flexibility improves greatly, and energy-saving consumption-reducing has increased economic benefit in all its bearings.

Being used in conjunction with of the pipe chain machine that the invention increases, the advantage of bringing for the present invention is as follows:

1, system is totally-enclosed, and good sealing effect is because pipe chain machine is that a merogenesis is assembled into whole circular pipe type structure, so it is extremely easy to sealing, and sealing is fabulous, can reach complete sealing effectiveness, very favourable to environmental protection.2, compact conformation, transfer efficiency is high due to delivered inside part special construction, in course of conveying, material precipitation is very little, be helical feed, bury that scraper plate is carried and other similar conveying equipment mechanism volumes 1/4 to 1/6, thereby transfer efficiency has improved 2-3 doubly.3, flexible arrangement, the structure due to pipe chain machine easy for installation in a tubular form, can need to design at existing or same court according to user, can meet various occasions completely and use.As tilted, the form such as vertical, turning, and can on a tunnel, install by many in-parallels, again can interconnection, can meet multidigit material loading, discharging operation.4, maintenance rate is low, and the internal structure due to pipe chain machine easy to maintenance is simple and reliable durable, and internal structure partly adopts special PROCESS FOR TREATMENT, so maintenance rate is extremely low, has greatly improved service life.In (except power section) in service normally, need not anyly keep in repair, to user, eliminated a lot of worries, reduced operating cost.

5, the little energy consumption of power is low, and system automation is controlled

Because pipe chain machine only needs low-power machine to drive, so energy consumption is very low.The start and stop of system, speed governing, chain, the control points such as monitoring seldom, are easily realized automation and are controlled.

Accompanying drawing explanation

Fig. 1 is the structural representation of coal-powder boiler slag removing system of the present invention

Fig. 2 is the front schematic view of guider 35

Fig. 3 is the cross-sectional view of guider 35

Fig. 4 is the structural representation of wear-resistingring 34.

The specific embodiment

The component names of Reference numeral representative is as shown in the figure as follows:

1, slag well; 11, shutoff door;

2, submerged slag conveyor; 21, slag inlet; 22, upper-deck cabin body; 23, lower cabin body; 24, drive unit; 25, directive wheel; 26, scraper chain; 27, updip active section; 3, pipe chain machine; 31, chain sheet; 32, feed hopper; 33 drive units; 34, wear-resisting ring; 35, guider; 351, baffle plate; 352 gears; 36, inspection hole; 4, drainage bin.

Embodiment 1

The invention is by combining after the prior art transformation in different field, and is again applied in coal-powder boiler slag removing system, has reached unexpected effect, and has proved that by practical application the invention has significant progress compared with conventional art; Below in conjunction with specific embodiment, conduct further description the invention; but following specific embodiment can not retrain protection scope of the present invention; modification, modification or improved plan that anyone or unit carry out with regard to the invention are declared patent, all in protection scope of the present invention.

As Fig. 1 mainly comprises slag well 1, be provided with two of lower cinder notch as shown in the figure, each lower cinder notch bottom is provided with shutoff door 11, for accumulating and control the grey quantity of slag; Slag downhole is placed submerged slag conveyor 2, and submerged slag conveyor mainly comprises upper-deck cabin body 22, lower cabin body 23; Upper-deck cabin body and lower cabin body are ganged up up and down, and centre arranges dividing plate, namely the base plate of upper-deck cabin body 22; The position of whole cabin body setting is positioned at slag well 1 below, and upper-deck cabin body 23 tops have slag inlet 21, for receiving the lime-ash from slag well; In lower cabin body 23, fill water, horizontal plane did not have the bottom surface of upper-deck cabin body; Body inside, cabin is provided with scraper chain 26, several equally distributed scraper plates are set on described scraper chain 26, whole scraper chain is around running between cabin body 22 and lower cabin body 23, at cabin body 23 from upper-deck cabin body 22 forwards to or the turning point that forwards upper-deck cabin body 22 to from lower cabin body 23, be provided with guider 25, object is in order to induce scraper chain around upper and lower two cabin body cycle rotations; Described guider 25 is connected with drive unit 24, for running scraper chain 26 provides power; The base plate operation of upper-deck cabin body 22 is close in above-mentioned scraper plate one end, can sweep and falls in upper-deck cabin body 22 and be deposited in the lime-ash on base plate.

As shown in the figure, the slag notch of submerged slag conveyor is arranged on one end of lime-ash direction of advance, and described slag notch is tightly connected with the feed hopper 32 of pipe chain machine 3, and described pipe chain machine 3 comprises chain sheet 31, transport pipeline 37, drive unit 33 and guider 35; Transport pipeline 37 is circulating pipeline as shown in the figure, and is arranged to upper and lower parallel two-tube pattern, and one end of two-tube transport pipeline 37 is positioned at bottom surface, and the other end is positioned at drainage bin 4 tops, manufactures transport pipeline 37 and adopts high-abrasive material cast stone; At the upper pipe of the transport pipeline 37 of two-tube pattern, turn to lower pipe or lower pipe to forward pipe place to guider 35 is set respectively, described guider mainly comprisesbaffle plate 351 andgear 352 as shown in Figure 2 and Figure 3, at the interior pipe chain that arranges of transport pipeline 37, describedgear 352 coordinates with the cuff link on pipe chain; Describedbaffle plate 351 is to arrange for preventing from managing chain landing gear 352.Pipe is evenly distributed with chain sheet 31 on chain, chain sheet 31 with manage that chain is vertical to be fixedly connected with; When equipment normally moves, on chain sheet, by bolt, install and fixedly wear-resistingring 34 as shown in Figure 4, described wear-resistingring 34 is flexibly connected with transport pipeline 37 inwalls; Drive unit 33 is installed being arranged on the guider of transport pipeline 37 near drainage bin 4 one end, drive unit 33 drives guider running, guider is given pipe chain by transmission of power, pipe chain drives chain sheet 31 to do fricting movement in transport pipeline 37, thereby drive the lime-ash falling in pipeline to drainage bin 4 direction motions, the height of described drainage bin 4 is 10 meters of left and right.

If situation appears in equipment, or need periodic maintenance, staff can, by being arranged on the inspection hole on pipeline 36 on transport pipeline 37, rebuild maintenance.

Through the lime-ash of drainage bin 4 dehydration, after reaching certain humidity, by drainage bin, entered in conveying arrangement, then carry out post-processed.

Embodiment 2

On the basis of the submerged slag conveyor relating to, add an acclivitous updip active section 27 of the upper-deck cabin body 22 along horizontal positioned in embodiment 1, 26 of scraper chains are around upper and lower cabin body and updip work 27 cycle operation, the slag notch of submerged slag conveyor is arranged on described updip active section 27, the length of described updip active section 27 is in order to save more short better that material can arrange, generally can be set to 0～3 meter, or longer, updip active section 27 is less than 90 degree with the angle of horizontal plane, the effect of active section 27 is that control water and the motion by scraper plate make grey solid impurity particle less more even, be conducive to the transportation fluency of lime-ash in pipe chain machine.Other arrange all with embodiment and are as good as.

Claims (8)

1. coal-powder boiler slag removing system mainly comprises submerged slag conveyor and a drainage bin, and submerged slag conveyor is positioned at slag downhole, docks with the lower cinder notch of slag well; It is characterized in that: also comprise pipe chain machine, described pipe chain machine is with a feed hopper being tightly connected with described submerged slag conveyor slag notch, discharging opening that drainage bin is connected, with pipe chain, drive unit and the transport pipeline of some chain sheets; Described pipe chain is arranged on transport pipeline inside; Described transport pipeline is arranged to closed circulation formula, and pipeline turns to bending position to be provided with guider; Described submerged slag conveyor is communicated with described drainage bin by described pipe chain machine.

2. coal-powder boiler slag removing system according to claim 1, is characterized in that described submerged slag conveyor mainly comprises drive unit, upper and lower two cabin bodies and the rotating scraper chain that circulates between two cabin bodies; Affixed several equally distributed scraper plates on described scraper chain, described scraper plate by scraper chain around upper and lower two cabin body cycle operation; Described scraper chain is forwarded to lower cabin body or is provided with guider by the turning point that lower cabin body forwards upper-deck cabin body to by upper-deck cabin body; Described cabin body is with a slag inlet and a slag notch; Described slag inlet is arranged on cinder notch below, slag down-hole; The feed hopper of described slag notch and described pipe chain machine is tightly connected.

3. coal-powder boiler slag removing system according to claim 1, is characterized in that updip active section that described submerged slag conveyor mainly comprises that a drive unit, body one end, Ti,Yu cabin, upper and lower two cabins are affixed and the scraper chain of cycle operation; Described upper-deck cabin body be provided with a level and smooth bottom surface and described updip active section affixed; Affixed several equally distributed scraper plates on described scraper chain; Described scraper plate by scraper chain around upper and lower two cabin bodies and updip active section cycle operation; The slag notch that the free end setting of described updip active section and pipe chain machine feed hopper are tightly connected.

4. coal-powder boiler slag removing system according to claim 3, is characterized in that the inclination active section of described submerged slag conveyor and the angle between horizontal plane are less than 90 degree.

5. coal-powder boiler slag removing system according to claim 1, is characterized in that being provided with inspection hole on the duct wall of described transport pipeline, and described transport pipeline wall adopts cast stone to be made.

6. coal-powder boiler slag removing system according to claim 5, is characterized in that described chain sheet wears and is fixed on pipe chain, on chain sheet, has been bolted wear-resisting ring, and described wear-resisting ring and duct wall are slidably connected.

7. coal-powder boiler slag removing system according to claim 6, is characterized in that described drive unit is arranged on one end and guider that pipe chain machine is connected with drainage bin affixed.

8. according to the coal-powder boiler slag removing system described in claim 1 ~ 7 any one, it is characterized in that at least 10 meters of the height that described drainage bin arranges.

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