CN220214394U

CN220214394U - Atmospheric pollution treatment device

Info

Publication number: CN220214394U
Application number: CN202321068317.XU
Authority: CN
Inventors: 张婉嬿; 周秀茹
Original assignee: Nanjing Guohuan Science And Technology Co ltd
Current assignee: Nanjing Guohuan Science And Technology Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-12-22
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses an atmospheric pollution treatment device, which relates to the technical field of atmospheric pollution, and has the advantages of preprocessing dust-containing and wet waste gas and improving the working efficiency of a cyclone tower, and the technical scheme is as follows: the device comprises an air inlet pipe for receiving dust-containing wet waste gas generated in the slag treatment process of a steelmaking unit, wherein the end part of the air inlet pipe is connected with a filter element for preprocessing the dust-containing waste gas, and the air outlet end of the filter element is communicated with the air inlet of a cyclone tower through a pipeline.

Description

Atmospheric pollution treatment device

Technical Field

The utility model relates to the technical field of atmospheric pollution, in particular to an atmospheric pollution treatment device.

Background

Slag treatment processes (such as roller slag, stewing slag and splashing slag) in steel refining process can generate a large amount of waste gas containing water vapor and dust, and the dust concentration is 100-2000 mg/Nm ³ The direct discharge into the air can cause serious pollution to the workplace and the atmospheric environment. In order to achieve the required emission standard of the exhaust gas, the exhaust gas needs to be purified. Thus, each plant is equipped with associated exhaust dust removal equipment.

The dust removal system is mainly adopted at presentThe wet process, i.e. "spraying+dewatering" mode, usually adopts the cyclone tower to remove dust, the cyclone tower is according to cyclone dust collector and water film dust collector each dust removal characteristic, smoke abatement, desulfur, dust removal, dust-water separation integrated special technological apparatus of smoke abatement that forms after combining organically, it is steel, stainless steel or all plastic to choose according to the smoke and dust property, the whole belongs to corrosion-resistant apparatus, spray system adopts two-stage (multi-stage) atomization spray, make gas-liquid fully contact, purifying efficiency is above 95%, flue gas enter the cyclone plate tower along lower tangent direction of tower after being pre-desulfur and humidified, rise rotationally because of the guiding effect of the tray blade, and spray the thick liquid that the atomization spray layer falls down again into several tens of microns on the tray, make the contact area between gas-liquid contact increase dramatically (than the gas-liquid contact area of dust collector increases several hundred to thousand times), the liquid drop is driven by the airstream to rotate, the centrifugal force produced is strengthened and is thrown onto the wall, flow down, because of providing good gas-liquid contact condition in the tower, SO in the gas is provided ₂ The cyclone plate tower is high in efficiency and general mass transfer equipment due to the fact that the cyclone plate tower is good in effect of being absorbed by alkaline liquid (desulfurization), and has the advantages of being large in flux, low in pressure, wide in operation elasticity, not easy to block, high in efficiency and the like.

However, large-particle impurities and large-particle liquid drops in dust-containing wet waste gas generated in the existing steelmaking unit slag treatment process directly enter the cyclone tower without pretreatment, the reaction time of the large-particle impurities and the large-particle liquid drops in the cyclone tower and water flow in the cyclone tower is prolonged, the large-particle impurities and the large-particle liquid drops need to be reacted in the atmospheric pollution treatment device, the reaction speed of the waste gas and the water flow in the cyclone tower is reduced, and the working efficiency is further reduced.

Disclosure of Invention

Aiming at the technical defects, the utility model aims to provide an air pollution treatment device which has the advantages of preprocessing dust-containing and wet waste gas and improving the working efficiency of a cyclone tower.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an atmospheric pollution treatment device which comprises an air inlet pipe for receiving dust-containing wet waste gas generated in the treatment process of steelmaking unit slag, wherein the end part of the air inlet pipe is connected with a filter element for preprocessing the dust-containing waste gas, and the air outlet end of the filter element is communicated with an air inlet of a cyclone tower through a pipeline.

Through adopting above-mentioned technical scheme, the wet waste gas of dustiness that steelmaking unit sediment treatment process produced gets into the filter through the intake pipe in, carries out preliminary treatment to the wet waste gas of dustiness through the effect of filter, reduces large granule impurity and the liquid drop in the dust-laden waste gas, and the waste gas after preliminary treatment gets into in the cyclone tower and carries out further dust removal, reaches exhaust emission purpose, through the effect of filter, reduced large granule impurity and liquid drop in the cyclone tower with the cyclone tower in the rivers reaction time, and then improved the work efficiency of cyclone tower, reduced the waste of water resource.

Further, the filter piece includes the connecting pipe, the inside both ends opening, inside hollow tubular structure that is of connecting pipe, the connecting pipe inlet end is the A end, and the end of giving vent to anger is the B end, the lower extreme of connecting pipe is equipped with the filter bowl, the filter bowl is inside cavity, upper and lower both ends open-ended tubular structure, the top and the connecting pipe integrated into one piece of filter bowl and with connecting pipe inner chamber intercommunication, the bottom of filter bowl is equipped with the outlet pipe, filter bowl bottom and outlet pipe slope transitional coupling, be equipped with the closed valve of control line on the outlet pipe, connecting pipe inner chamber top is fixed with the major axis, the major axis bottom extends to in the filter bowl, the part that the major axis extends to in the filter bowl is fixed with the tray, be fixed with the cover on the tray and establish the filter bowl outside the major axis, the one end that the tray was kept away from to the filter bowl is fixed with the fixed pipe, the connecting pipe internal fixation has the closure plate that seals the clearance between connecting pipe inlet end and the fixed pipe top, the fixed pipe upper end is fixed with the closing plate that seals the clearance between the fixed pipe and the end of giving vent to anger.

Through adopting above-mentioned technical scheme, because the closing plate has sealed the clearance between connecting pipe and the filter bowl, dust-containing wet waste gas gets into in the connecting pipe, and only can flow into the filter bowl through the clearance between connecting pipe and the filter bowl, filter dust-containing wet waste gas through the effect of filter vat, large granule impurity is filtered by the filter vat, in the waste gas after filtering gets into the filter vat, and move up through the filter vat, and through the effect of closing plate, so that seal fixed pipe and connecting pipe play the end clearance of giving vent to anger, make gas can't spill over in the clearance between fixed pipe and the connecting pipe, can only flow into in the connecting pipe from fixed pipe inner chamber, and then flow into in the swirl pot.

Further, a guide plate is fixed on the circumferential outer wall of the fixed pipe, and the diameter of the guide plate is matched with the inner diameter of the filter cup.

Through adopting above-mentioned technical scheme, through the effect of guide plate, the waste gas that gets into the filter bowl is rotatory through guide plate tangential direction breach, and large granule impurity and large granule liquid drop can be got rid of the filter bowl inner wall through the effect of centrifugal force on to flow to the bottom downwards along the filter bowl inner wall through gravity effect, large granule impurity and large granule liquid drop can not get into in the filter vat and then get into in the whirl tower, reduced the possibility that large granule impurity and large granule liquid drop contacted with the water in the whirl tower, improved the work efficiency of whirl tower.

Further, the connecting pipe is fixedly provided with an arc-shaped block with a diversion effect, and the arc-shaped block and the inner wall of the connecting pipe are of an integrated structure and are in inclined smooth transition.

Through adopting above-mentioned technical scheme, through the effect of arc piece reduced the air inlet space of connecting pipe air inlet, improved the gas velocity of flow to gas and guide plate contact and rotatory through guide plate tangential direction breach.

Further, one side of the tray, which is away from the filter vat, is fixed with a mounting shaft, and one end of the mounting shaft, which is away from the tray, is fixed with an umbrella-shaped baffle.

Through adopting above-mentioned technical scheme, reduce through umbrella-shaped baffle's effect and flow to the big granule impurity and the big granule liquid drop of filter cup bottom and be rolled up back into the air current.

Further, the outer wall of one end of the umbrella-shaped baffle, which is far away from the installation shaft, is abutted against the inner wall of the filter cup, and a through hole communicated with the inner cavity of the filter cup is formed in the umbrella-shaped baffle.

Through adopting above-mentioned technical scheme, reduce the possibility that large granule impurity and large granule liquid droplet pile up on umbrella-shaped baffle through the effect of through-hole.

Further, a drain pipe communicated with the inner cavity of the filter cup is arranged on the filter cup, and the drain pipe is positioned at the upper end of the umbrella-shaped baffle.

Through above-mentioned technical scheme, through the effect of blow off pipe to pile up big granule impurity and big granule liquid drop on umbrella-type baffle and discharge from the blow off pipe, reduce the possibility that big granule impurity and big granule liquid drop pile up on umbrella-type baffle.

The utility model has the beneficial effects that:

(1) This atmospheric pollution processing apparatus, the wet waste gas of dustiness that produces through steelmaking unit sediment treatment process gets into the filter through the intake pipe in, the effect through the filter carries out preliminary treatment to the wet waste gas of dustiness, large granule impurity and the liquid drop in the reduction dust-laden waste gas, the waste gas after preliminary treatment gets into in the cyclone tower and carries out further dust removal, reach the exhaust emission purpose, through the effect of filter, reduced large granule impurity and liquid drop in the cyclone tower with the cyclone tower in the rivers reaction time, and then improved the work efficiency of cyclone tower, the waste of water resource has been reduced.

(2) According to the air pollution treatment device, the large-particle impurities and large-particle liquid drops flowing to the bottom of the filter cup are reduced through the action of the umbrella-shaped baffle plate and rolled back into the air flow, so that the dust removal and dehumidification treatment efficiency of the device is further improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present embodiment;

fig. 2 is a schematic sectional view of the connecting pipe of the present embodiment;

fig. 3 is a schematic structural diagram of the baffle according to the present embodiment.

Reference numerals illustrate:

in the figure: 1. an air inlet pipe; 2. a filter; 201. a connecting pipe; 202. a filter cup; 203. a water outlet pipe; 204. a long axis; 205. a tray; 206. a filter vat; 207. a fixed tube; 208. a closing plate; 209. a deflector; 210. an arc-shaped block; 211. a mounting shaft; 212. umbrella-shaped baffle; 213. a through hole; 214. a blow-down pipe; 215. a sealing plate; 3. a cyclone tower.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

An atmospheric pollution treatment device, as shown in figures 1-3, including the fan and receive the intake pipe 1 of dust-laden waste gas that steelmaking unit sediment treatment process produced, the end connection of intake pipe 1 has filter element 2 to dust-laden waste gas carries out preliminary treatment, the gas outlet end of filter element 2 passes through the pipeline intercommunication with the air inlet of whirl tower 3, through the effect of fan, dust-laden wet waste gas that steelmaking unit sediment treatment process produced gets into filter element 2 through intake pipe 1, the effect through filter element 2 carries out preliminary treatment to dust-laden wet waste gas, reduce large granule impurity and the liquid drop in the dust-laden waste gas, the waste gas after preliminary treatment gets into the whirl tower 3 and carries out further dust removal, reach the exhaust emission purpose, through the effect of filter element 2, reduced large granule impurity and liquid drop in whirl tower 3 with the whirl tower 3 in the rivers reaction time, and then improved the work efficiency of whirl tower 3.

As shown in fig. 2, the filter element 2 includes a connecting pipe 201, the inside of the connecting pipe 201 is a pipe structure with two open ends and a hollow inside, the air inlet end of the connecting pipe 201 is an a end, the air outlet end is a B end, the a end of the connecting pipe 201 is connected with the end of the air inlet pipe 1 through a flange, and the B end is connected with the air inlet pipe of the cyclone tower 3 through a flange.

As shown in fig. 2 and 3, the lower end of the connecting pipe 201 is provided with a filter cup 202 through threads, a rubber sealing ring for improving the tightness of the joint of the filter cup 202 and the connecting pipe 201 is arranged at the joint between the filter cup 202 and the connecting pipe 201, the filter cup 202 is of a tubular structure with a hollow interior and an open upper end and a open lower end, the top end of the filter cup 202 is integrally formed with the connecting pipe 201 and is communicated with the inner cavity of the connecting pipe 201, the bottom end of the filter cup 202 is provided with a water outlet pipe 203, the bottom end of the filter cup 202 is connected with the water outlet pipe 203 in an inclined transitional manner, and a valve for controlling the closing of a pipeline is arranged on the water outlet pipe 203.

As shown in fig. 2 and 3, a sleeve column is arranged at the top end of an inner cavity of the connecting pipe 201, a screw hole is formed in the sleeve column, a long shaft 204 is connected in the screw hole in a threaded manner, the long shaft 204 is axially arranged and extends into the filter cup 202, a tray 205 is fixed on the part of the long shaft 204 extending into the filter cup 202, a filter barrel 206 sleeved outside the long shaft 204 is fixed on the upper surface of the tray 205, the contact end of the filter barrel 206 and the tray 205 is closed and fixedly connected with the tray 205, one end of the filter barrel 206, which is far away from the tray 205, is open, and the interior of the filter barrel 206 is hollow.

As shown in fig. 2 and 3, a fixing tube 207 is fixed at one end of the filter vat 206 far away from the tray 205, a sealing plate 208 for sealing a gap between the end of the connecting tube 201A and the top end of the fixing tube 207 is fixed in the connecting tube 201, a sealing plate 215 for sealing a gap between the fixing tube 207 and the air outlet end of the connecting tube 201 is fixed at the upper end of the fixing tube 207, the connecting tube 201, the sealing plate 208 and the sealing plate 215 are in an integrated structure, a groove is formed on one side of the sealing plate 208 and the sealing plate 215 facing the fixing tube 207, and the fixing tube 207 is tightly inserted with the sealing plate 208 and the sealing plate 215 through the groove.

In operation, as shown in fig. 2 and 3, the dust-containing wet waste gas generated in the steelmaking unit slag treatment process enters the end of the connecting pipe 201A through the air inlet pipe 1, can only flow into the filter bowl 202 through the gap between the connecting pipe 201 and the filter bowl 202 under the action of the sealing plate 208, and can be filtered through the action of the filter barrel 206, large-particle impurities and large-particle liquid drops are filtered by the filter barrel 206, and the filtered waste gas enters the filter barrel 206 and can conveniently seal the gap between the fixing pipe 207 and the air outlet end of the connecting pipe 201 under the action of the sealing plate 215, so that the gas cannot overflow from the gap between the fixing pipe 207 and the connecting pipe 201, and can only flow into the connecting pipe 201 from the inner cavity of the fixing pipe 207 and then flow into the cyclone tower 3.

As shown in fig. 2 and 3, in order to improve the filtering efficiency of the device, a baffle 209 is fixed on the circumferential outer wall of the fixing tube 207, the diameter of the baffle 209 is adapted to the inner diameter of the filtering cup 202, through the action of the baffle 209, the waste gas entering the filtering cup 202 rotates through the notch in the tangential direction of the baffle 209, and the large-particle impurities and the large-particle liquid drops are thrown onto the inner wall of the filtering cup 202 through the action of centrifugal force and flow downwards to the bottom along the inner wall of the filtering cup 202 through the action of gravity, so that the large-particle impurities and the large-particle liquid drops cannot enter the filtering barrel 206 and then enter the cyclone tower 3, the possibility that the large-particle impurities and the large-particle liquid drops are contacted with water in the cyclone tower 3 is reduced, and the working efficiency of the cyclone tower 3 is improved.

As shown in fig. 2, in order to improve the filtering efficiency of the exhaust gas, an arc block 210 having a guiding function is fixed on the connecting pipe 201, the arc block 210 and the inner wall of the connecting pipe 201 are in an integrated structure and are in inclined smooth transition, the air inlet space of the air inlet end of the connecting pipe 201 is reduced by the action of the arc block 210, and the flow rate of the air is improved, so that the air is in contact with the guiding plate 209 and rotates through the notch in the tangential direction of the guiding plate 209.

As shown in fig. 2, in order to reduce large particle impurities and large particle liquid drops from being rolled back into the air flow, one side of the tray 205, which is away from the filter vat 206, is provided with an axial installation shaft 211 through threads, one end of the installation shaft 211, which is away from the tray 205, is provided with an umbrella-shaped baffle 212 through threads, the outer wall of one end of the umbrella-shaped baffle 212, which is away from the installation shaft 211, is in conflict with the inner wall of the filter cup 202, a through hole 213 communicated with the inner cavity of the filter cup 202 is formed in the umbrella-shaped baffle 212, and the large particle impurities and large particle liquid drops flowing to the bottom of the filter cup 202 are reduced through the action of the umbrella-shaped baffle 212 and are rolled back into the air flow, and the large particle impurities and the large particles flow downwards along the inner wall of the filter cup 202 through the through hole 213 under the umbrella-shaped baffle 212 due to the action of gravity.

In order to reduce the possibility of accumulating large-particle impurities and large-particle droplets on the umbrella-shaped baffle 212, as shown in fig. 2, a drain pipe 214 communicated with the inner cavity of the filter cup 202 is arranged on the filter cup 202, the drain pipe 214 is positioned at the upper end of the umbrella-shaped baffle 212, and the large-particle impurities and large-particle droplets accumulated on the umbrella-shaped baffle 212 are discharged from the drain pipe 214 through the action of the drain pipe 214, and a control valve for controlling the opening and closing of the drain pipe 214 is arranged on the drain pipe 214.

As shown in figure 1, the waste gas entering the cyclone tower 3 enters the filter tower again, fine particle water mist in the waste gas is removed through the filter tower, and finally the relative humidity is reduced through air mixing, so that the purpose of dehumidifying and discharging the waste gas is achieved.

After a period of use of the apparatus as shown in fig. 2 and 3, a worker may remove the filter bowl 202, umbrella baffle 212, mounting shaft 211 and long shaft 204 in that order, clean the umbrella baffle 212, and replace the filter vat 206.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The atmospheric pollution treatment device is characterized by comprising an air inlet pipe (1) for receiving dust-containing wet waste gas generated in the slag treatment process of a steelmaking unit, wherein the end part of the air inlet pipe (1) is connected with a filter element (2) for preprocessing the dust-containing waste gas, and the air outlet end of the filter element (2) is communicated with the air inlet of a cyclone tower (3) through a pipeline;

the filter element (2) comprises a connecting pipe (201), wherein an air inlet end of the connecting pipe (201) is an A end, an air outlet end of the connecting pipe is a B end, a filter cup (202) communicated with an inner cavity of the connecting pipe (201) is arranged at the lower end of the connecting pipe (201), and a water outlet pipe (203) is arranged at the bottom end of the filter cup (202);

a long shaft (204) is fixed at the top end of an inner cavity of the connecting pipe (201), the bottom end of the long shaft (204) extends into the filter cup (202), a tray (205) is fixed at the part of the long shaft (204) extending into the filter cup (202), a filter barrel (206) sleeved outside the long shaft (204) is fixed on the tray (205), a fixed pipe (207) is fixed at one end, far away from the tray (205), of the filter barrel (206), a sealing plate (208) for sealing a gap between the air inlet end of the connecting pipe (201) and the top end of the fixed pipe (207) is fixed in the connecting pipe (201), and a sealing plate (215) for sealing the gap between the fixed pipe (207) and the air outlet end of the connecting pipe (201) is fixed at the upper end of the fixed pipe (207);

a deflector (209) is fixed on the circumferential outer wall of the fixed pipe (207), and the diameter of the deflector (209) is matched with the inner diameter of the filter cup (202).

2. An atmospheric pollution treatment device according to claim 1, wherein an arc-shaped block (210) having a guiding function is fixed to the air inlet end of the connecting pipe (201), and the arc-shaped block (210) and the inner wall of the connecting pipe (201) are of an integrated structure and are in inclined smooth transition.

3. An atmospheric pollution treatment device according to claim 1, wherein a mounting shaft (211) is fixed to a side of the tray (205) facing away from the filter vat (206), and an umbrella-shaped baffle (212) is fixed to an end of the mounting shaft (211) facing away from the tray (205).

4. An atmospheric pollution treatment device according to claim 3, wherein an outer wall of one end of the umbrella-shaped baffle plate (212) far away from the mounting shaft (211) is abutted against an inner wall of the filter cup (202), and a through hole (213) communicated with an inner cavity of the filter cup (202) is formed in the umbrella-shaped baffle plate (212).

5. An atmospheric pollution treatment device according to claim 4, wherein the filter bowl (202) is provided with a drain pipe (214) communicating with the inner cavity of the filter bowl (202), and the drain pipe (214) is located at the upper end of the umbrella-shaped baffle (212).