CN1073121A - Wet type purification device - Google Patents

Abstract

The present invention relates to a wet purification apparatus suitable for purification treatment of waste gas containing sulfur dioxide, dust, etc. discharged from various industrial facilities. The device includes waste gas import 7, circular interior barrel 6, outer barrel 11, gas vent 9, drain pipe 3, water pipe 4, and waste gas directly gets into the upper end of circular barrel, and in the barrel including the water pipe device, a plurality of aqueous vapor combines basin 5 in concatenating in the water pipe outside. The device can realize the purification treatment of waste gas with more than two stages, and has the characteristics of simple structure, high dust removal efficiency, no air and water leakage, corrosion resistance, wear resistance and the like.

Description

Wet purifying decice

The present invention relates to a kind of wet purifying decice, especially a kind of granite is the wet purifying decice of cylinder material.

The wet waste gas purifier that materials such as existing granite are made, models such as WMC, WTC, MC, MCS, ST, PC for example, principle and structure are basic identical, mainly are made up of air inlet, garden shape cylindrical shell, the outlet of spilling water groove.There is following defective in the purifier of these structures: the one, and when waste gas when tangential or whirlpool formula enters cylindrical shell and produces centrifugal force from import, air-flow rotates up, and barrel produces thrust, grit is adhered to by moisture film, swirling eddy tends to destroy moisture film and forms, and takes rear pass out of with air-flow, the corrosion air-introduced machine; The 2nd, the gas rotating room is an empty tube, and when whirlwind, big dust particle moves outwardly, and the granule dust is taken rear pass out of and entered atmosphere towards central motion, influences clean-up effect; Three is that a class emission request front must add the one-level dry cleaning, and efficiency of dust collection is low; The 4th, because unreasonable structure, high-temp waste gas at first enters inner/outer tube, easily makes the outer cylinder body bonding agent produce the crack, causes that cylindrical shell leaks, and influences boiler and burns till and pollute the boiler environment; The 5th, the large amount of sewage that purifier is drained, must be after purified treatment could reuse, the general user limits because of the place, directly discharging, not only water consumption is big, and the generation secondary pollution.

The object of the invention is to provide a kind of wet waste gas purifier of novel structure, to solve the above-mentioned defective of existing purifier.

Technical solution of the present invention is: the top exhaust gas inlet of purifier connects a garden shape inner barrel, device one water pipe in the shape inner barrel of garden, pipe outer wall is connected in series some aqueous vapor conjoint disks, be generally 1-2, the water pipe end opening connects water inlet pipe, there is the outer cylinder body of a square or garden shape in the shape inner barrel outside in garden, on establish cover plate, purified gas outlet can be opened on upper cover plate.When waste gas when import enters garden shape inner barrel, by the water pipe location, cause the waste gas axially-movable, swirling eddy and the water pipe direct current liquid generation good combination of getting off around here, dust in flue gas and SO₂Carry out one-level seizure separation Deng gas, flue gas behind first class purification, enter aqueous vapor in conjunction with between basin and shape inner barrel gap, garden, produce the combination of inner and outside of secondary moisture film cascade, impurity is removed in centrifugation, purify the back dehydrated air and enter between the inside and outside cylindrical shell, discharge, reach the above clean-up effect of secondary from upper air vent.

Detailed technology content of the present invention is given explanation by embodiment and accompanying drawing thereof.

Fig. 1 is the structural representation of embodiment wet purifying decice.

Fig. 2 is Fig. 1 C-C cutaway view.

This purifier comprisesexhaust gas inlet 7, garden shapeinner barrel 6, outer cylinder body 11,exhaust outlet 9,excretory duct 3,water pipe 4, garden shapeinner barrel 6 is arranged in outer cylinder body 11,exhaust gas inlet 7 is passed outer cylinder body and is connected with garden shape inner barrel, waste gas directly enters the upper end of garden shape inner barrel,water pipe 4 devices are in the shape inner barrel of garden, water enterswater pipe 4 from garden shape inner barrel bottom,water pipe 4 outsides are serially connected with aqueous vapor in conjunction withbasin 5, looking purification in conjunction with the basin number requires to set, be generally 1-2, in conjunction withbasin 5 and garden shapeinner barrel 6 inwalls certain interval is arranged,water pipe 4 top deviceinner cover plate 8, outer cylinder body 11 top arrangementupper cover plates 10,exhaust outlet 9 are located at the outer cylinder body upper end, be preferably in thegas port 9 that directly begins to rehearse on theupper cover plate 10,excretory duct 3 is placed in the lower end of garden shape inner barrel 6.Among the figure, the 1st, water inlet pipe directly is connected with water pipe, is supplied water by supply equipments such as pumps, can regulate injection flow rate by valve.The 2nd, this device pedestal, the 12nd, shutter board is installed between the inside and outside cylindrical shell, further the dewatering and filtering purified gas.Inside and outside cylindrical shell is made by resistant materials such as granite, stainless steels.Present embodiment adopts granite product.

Primary axis is to be formed in conjunction with the space thatbasin 5 andinner cover plate 8 are comprised bywater pipe 4 and aqueous vapor to the rotating room, aqueous vapor produces a week 360 ° of gas rotations slot in conjunction withbasin 5 in the middle of garden shapeinner barrel 6, gas is axially rotation downwards in the rotating room, enter aqueous vapor in conjunction withbasin 5 slots, impurity and water after first class purification is handled are combined into the moisture film cascade, are distributed in garden shapeinner barrel 6 inwalls, in conjunction withbasin 5 to underflow stream, gas rotates in double-deck moisture film cascade, catches dust, the SO of inside and outside axially-movable for the second time₂The band dust sewage that twice purification got off enters clean ashpit by blow-offpipe 3, by clean grey pool side reuse tank direct reuse.

In purifier when work,, tangential or whirlpool formula enters flue gas fromexhaust gas inlet 7, flow velocity 18～20M/ second, in order to make the gas direct-axis to rotation, sulfur fine dust in the gas, blackness, in the well all fast time by aqueous vapor in conjunction with obtainingcentrifugation.Water pipe 5 overflow waters, make the fine dust sulfur dioxide in the flue gas be subjected to the sewage combination rapidly, soak into rotation and carry out the one-level separation, dust sewage after the separation gets rid of to garden shapecylindrical shell 6 inwalls,water pipe 4 outer walls have produced water membrane (cascade), formed cascade (moisture film) in conjunction withbasin 5, flue gas changes the slot that garden shapeinner barrel 6 is constituted in conjunction withbasin 5 over to.Flue gas this moment flow velocity loss when one-level is separated obtains new remedying, be strengthened to 15M/ second, inside and outside double-deck moisture film combination, carrying out secondary separates, sewage takes the bottom to and discharges, and gas is eliminated rotation by back-up block behind double purification, follows the floating dust of water rotation in the remaining gas, enter the inner/outer tube body space and enter louvered board second with 2M/, the clean gas after the dehydration is discharged from upper air vent.

This purifier adopts the technical scheme of above-mentioned uniqueness, has overcome the defective of existing wet purifying decice, has following advantage: the one, and the efficiency of dust collection height can reach 98%, running resistance 50KPa, neutral solution desulfurization 56%; The 2nd, adopt the inner core purified treatment, cooled dewatered clean gas is discharged from the inner/outer tube space, and can not destroy the outer cylinder body bond state and produce the crack, thus air tight leaking; The 3rd, adopt the corrosion-proof wear materials such as granite, can make cylindrical shell anti-corrosion, wear-resisting; The 4th, purified gas is not with water and corrosive gas, thereby does not corrode air-introduced machine; The 5th, sewage can reuse after purifying; The 6th, than existing similar dust arrester, simple in structure. This device is applicable to that the waste gas purifications such as sulfur dioxide and dust that contain of industrial various device discharging process.

Claims (9)

1, a kind of wet purifying decice, comprise exhaust gas inlet, garden shape inner barrel, outer cylinder body, exhaust outlet, excretory duct, water pipe, it is characterized in that exhaust gas inlet 7 passes outer cylinder body 11 and be connected with garden shape inner barrel 6, waste gas directly enters the upper end of garden shape inner barrel 6, water pipe 4 is installed in the garden shape inner barrel 6, water pipe 4 outsides are serially connected with aqueous vapor in conjunction with basin 5, in conjunction with basin 5 and garden shape inner barrel 6 inwalls certain interval are arranged.Exhaust outlet 9 is located at the outer cylinder body upper end, and excretory duct 3 is connected with shape inner barrel lower end, garden.

2, wet purifying decice according to claim 1 is characterized in that between outer cylinder body 11 and the garden shape inner barrel 6 louvered board 12 being housed.

3, wet purifying decice according to claim 1 and 2 is characterized in that having two aqueous vapors in conjunction with basin 5.

4, wet purifying decice according to claim 1 and 2 is characterized in that outer cylinder body is a square shape.

5, wet purifying decice according to claim 3 is characterized in that outer cylinder body is a square shape.

6, wet purifying decice according to claim 1 and 2 is characterized in that inside and outside cylindrical shell is a granite product.

7, wet purifying decice according to claim 3 is characterized in that inside and outside cylindrical shell is a granite product.

8, wet purifying decice according to claim 4 is characterized in that inside and outside cylindrical shell is a granite product.

9, wet purifying decice according to claim 5 is characterized in that inside and outside cylindrical shell is a granite product.

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