CN210699373U - Smoke tail gas purification device used in steel structure shot blasting and rust removing process - Google Patents

Abstract

The utility model discloses a be used for steel construction to throw ball rust cleaning in-process smoke and dust tail gas cleanup unit, including leading-in chimney, one-level clean room, second grade clean room, and basin, the utility model discloses be different from traditional dust collector, the device installs behind conventional dust pelletizing system, do not change former dust pelletizing system configuration and overall arrangement, only dock dust pelletizing system chimney and this system device through the pipeline, discharge after carrying out repurification treatment with the flue gas after equipment dust pelletizing system purifies, can realize discharging after furthest's pollutant purifies through this dust collector, be different from the requirement of traditional dust pelletizing system discharge to reach standard, the device uses the zero release to set up as final target, really be in order to reach green manufacturing, the target of sustainable development, benign development and overall arrangement for traditional steel construction manufacturing industry provide bigger space, realize productivity effect and equipment benefit, the device is simple in structure, the device is convenient, the device is, And (4) unifying environmental benefits.

Description

Smoke tail gas purification device used in steel structure shot blasting and rust removing process

Technical Field

The utility model relates to a tail gas purification technical field specifically is a be used for steel construction to throw ball rust cleaning in-process smoke and dust tail gas cleanup unit.

Background

In the production process of a steel structure, shot blasting rust removal is taken as a necessary process, a large amount of iron oxide smoke dust and iron powder particles are generated in the processing process, the metal dust in the smoke dust can not be completely removed by a traditional dust removal system, the negative impact on the environment is huge, meanwhile, the traditional dust removal equipment is maintained, the replacement of the filter material faces the embarrassment that the investment is high, the maintenance frequency is high, the operation environment is severe, but the increasingly urgent environment protection requirements cannot be met frequently, the replaced filter material also lacks reliable recovery and treatment means, secondary pollution is often caused, the filter material is actually trapped in a strange circle of circular pollution, along with the urgent needs of environment protection, the environmental dilemma of an enterprise faces to be worsened more and more, the enterprise faces to lack of stable and efficient equipment in the active treatment process so as to achieve the treatment effect far higher than the historical limit value, and how to realize safe, efficient, stable and economic treatment becomes an urgent need.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for steel construction to throw ball rust cleaning in-process smoke and dust tail gas cleanup unit, have high-efficient, safe, be convenient for manage, drop into low, can use characteristics with traditional dust collector is supporting, do not influence the existing equipment operation moreover, to the production interference few, effectively compensate traditional device not enough, can effectively prolong traditional equipment and filter media and change the maintenance frequency, can really realize the thorough improvement of traditional high pollution industry.

In order to achieve the above object, the utility model provides a following technical scheme: a smoke tail gas purification device used in a steel structure shot blasting and rust removing process comprises a guide-in chimney, a primary purification chamber, a secondary purification chamber and a water tank, wherein the air inlet end of the guide-in chimney is connected to the exhaust end of original environment-friendly equipment, the primary purification chamber is arranged in the secondary purification chamber, the guide-in chimney sequentially penetrates through the side walls of the secondary purification chamber and the primary purification chamber from the top, and waterproof sealing treatment is performed at the connection position of the guide-in chimney and the two purification chambers;

the lower end of the primary purification chamber is immersed below the water surface and suspended in the air, the lower end of the primary purification chamber is fixed on a bottom plate of the water tank through support columns, exhaust ports communicated with the secondary purification chamber are uniformly distributed around the primary purification chamber, a plurality of first anti-blocking atomization spray heads are uniformly distributed above the inner part of the primary purification chamber, and the first anti-blocking atomization spray heads are connected to the first pipeline;

the wall plate of the secondary purification chamber is welded with the bottom plate of the water tank in a sealing manner, a drain outlet communicated with the outside is formed in the wall plate at the lower end of the secondary purification chamber, the top of the secondary purification chamber is open, a dehydrator is arranged at the upper part of the chamber body, a plurality of second anti-blocking atomization spray heads are uniformly distributed below the internal dehydrator of the secondary purification chamber, the second anti-blocking atomization spray heads are connected onto the first pipeline, a plurality of high-pressure cleaning spray heads are uniformly distributed above the internal dehydrator of the secondary purification chamber, and the high-pressure cleaning spray heads are connected onto the second pipeline;

the water tank outside the secondary purification chamber is a circulating precipitation purification water tank which is annular and is divided into an area A and an area B by a partition plate, the sewage outlet is communicated with the secondary purification chamber and the area A, the area A is a plurality of precipitation areas divided by a plurality of partition plates, the partition plates positioned at the head end of the area A and the tail end of the area B are as high as the water tank wall plate, and the rest partition plates are lower than the water tank wall plate;

and a water pump is arranged in the area B and is connected with the first pipeline and the second pipeline through pipeline valves.

Preferably, purifier still includes guiding device, guiding device includes kuppe and grid base plate, grid base plate sets up in the surface of water top, and its edge is fixed on the wallboard of one-level clean room and second grade clean room, the kuppe is fixed on grid base plate, and the kuppe corresponds the below that sets up at leading-in chimney.

Preferably, the middle part of the air guide sleeve is of a cone structure, and the periphery of the air guide sleeve is of a bell mouth structure.

Preferably, an access door is arranged above the water surface of the side surface of the primary purification chamber.

Preferably, an access door is arranged above the water surface on the side of the secondary purification chamber.

Preferably, the exhaust port is of a fan-shaped thin-wall rain shed-like structure, and the opening of the arc-shaped structure of the exhaust port faces downwards.

Preferably, the top of second grade clean room is equipped with the weather enclosure, the weather enclosure is fixed with the wallboard of second grade clean room through many spliced poles, the weather enclosure is convex surface form, and its convex surface opening down.

Preferably, basin A district is provided with mud-water separation briquetting machine, mud-water separation briquetting machine is through long sewage suction pipeline suction sediment in the mud of A district bottom, and the packing environmental protection is dealt with after driping mud, and sewage then still converges basin A district.

Preferably, the water tank B area is provided with a water replenishing pipeline, a maintenance valve, a water level sensor and a controller.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model can directly butt-joint and guide the chimney into the smoke pipe to complete the connection without changing the arrangement and the use of the original dust removal device, and the field construction has small interference on the production and the original equipment and flexible arrangement;

the utility model adopts the air guide sleeve to distribute the gas, effectively reduces the back pressure of the original system, and has high efficiency of capturing the dust in the flue gas by combining the use of the atomizing spray head and the water tank;

thirdly, the utility model can capture the dust in the flue gas for many times through the arrangement of two-stage purification, thereby maximally achieving the purification effect;

fourthly, the utility model reduces the water vapor discharge and the loss through the use of the dehydrator;

fifthly, the utility model discloses a setting of circulation sedimentation purification basin and baffle makes the water effectively purify and recycle, through the use that prevents stifled shower nozzle, has solved the problem of shower nozzle and pipe blockage, makes the water resource obtain maximize recycling, need not the outer discharge of sewage and handles, has eliminated secondary pollution.

Drawings

FIG. 1 is a vertical structural view of a smoke tail gas purification device used in the shot blasting and rust removing process of a steel structure of the utility model;

FIG. 2 is a plan view of the smoke tail gas purification device used in the steel structure shot blasting rust removal process of the utility model;

in the figure: 1-a guiding chimney, 2-a secondary purification chamber, 3-a primary purification chamber, 4-a flow guide cover, 5-a water tank, 6-a first anti-blocking atomization spray head, 7-an exhaust port, 8-a grid base plate, 9-a second anti-blocking atomization spray head, 10-a dehydrator, 11-a high-pressure cleaning spray head, 12-a sewage discharge port, 13-a water pump, 14-a pipeline valve, 15-a pipeline I, 16-a pipeline II, 17-a rain shelter, 18-flue gas, 19-a connecting column, 20-a water replenishing pipeline, 21-an inspection valve, 22-a water level sensor, 23-a partition plate and 24-a muddy water separation briquetting machine.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: the utility model provides a smoke and dust tail gas cleanup unit for steel construction shot-blast rust cleaning in-process, includes leading-in chimney 1, one-level clean room 3, second grade clean room 2 and basin 5, the inlet end of leading-in chimney 1 is connected at former environmental protection equipment exhaust end, and leading-in chimney 1 can have various forms, including various forms such as rectangle, circular, flexonics, the connected mode of leading-in chimney 1 and former environmental protection equipment exhaust end can have flange joint, welded connection, riveting, flexonics or the combination formula of these several kinds of modes to be connected, one-level clean room 3 sets up the inside of second grade clean room 2, leading-in chimney 1 passes the lateral wall of second grade clean room 2 and one-level clean room 3 from the top in proper order, and all does waterproof sealing at the junction of leading-in chimney 1 and two clean rooms, waterproof sealing treatment accessible installs the sealing washer additional, paints sealed glue, And a combination of the two methods, in order to limit the flue gas 18 in the space formed by the primary purification chamber 3, the secondary purification chamber 2 and the water surface.

Purifier still includes guiding device, guiding device includes kuppe 4 and grid base plate 8, and kuppe 4, grid base plate 8 are little module combination, easy to assemble and adjustment, grid base plate 8 sets up in the surface of water top, and its edge fixes on the wallboard of one-level clean room 3 and second grade clean room 2, kuppe 4 is fixed on grid base plate 8, and kuppe 4 corresponds the setting in the below of leading-in chimney 1, the middle part of kuppe 4 is the cone structure, and its periphery is the horn mouth structure, realizes the reposition of redundant personnel to dusty air current, and in coordination with grid base plate 8, reaches gaseous cloth and reduces the efficiency of former dust pelletizing system air outlet backpressure, and dusty flue gas 18 cuts into the surface of water through its slash, and the smoke and dust gets into the water through inertia and realizes catching the purification.

The lower end of the primary purification chamber 3 is immersed below the water surface and suspended, the lower end of the primary purification chamber 3 is fixed on a bottom plate of the water tank 5 through a support column to realize communication between the bottom of the water surface and the outside, a plurality of first anti-blocking atomizing nozzles 6 are uniformly distributed above the inside of the primary purification chamber 3, the first anti-blocking atomizing nozzles 6 are connected on a first pipeline 15, atomized water vapor is sprayed out through the first anti-blocking atomizing nozzles 6, when the atomized water vapor is mixed and combined with smoke dust flowing upwards after primary purification at the bottom of the grating, water drops can wrap the surfaces of the smoke dust particles to form dust-containing water drops, the formed dust-containing water drops fall into the water tank 5 under the influence of gravity to realize secondary capture and purification of the smoke dust, exhaust ports 7 communicated with the secondary purification chamber 2 are uniformly distributed around the primary purification chamber 3, the exhaust ports 7 are of a fan-shaped thin-wall rain shed structure, and are favorable, the arc structure opening of gas vent 7 is down, will export through combination gas and vapor after purifying, gets into second grade clean room 2, and the flue gas 18 of deriving moves down under gravity and inertial effect, gets into the aquatic after the reposition of redundant personnel of grid base plate 8, realizes catching the purification once more of smoke and dust granule.

The wall plate of the secondary purification chamber 2 is hermetically welded with the bottom plate of the water tank 5, the water remover 10 is arranged on the upper part of the chamber body, the water vapor discharge and loss can be reduced, a plurality of second anti-blocking atomizing spray heads 9 are uniformly distributed below the water remover 10 in the secondary purification chamber 2, the second anti-blocking atomizing spray heads 9 are connected onto a first pipeline 15, atomized water vapor is sprayed out through the second anti-blocking atomizing spray heads 9, when the atomized water vapor is mixed and combined with the smoke dust flowing upwards from the bottom of the grating after multiple purifications, water drops can wrap the surfaces of the smoke dust particles to form dust-containing water drops, the formed dust-containing water drops fall into the water tank 5 under the influence of gravity to realize the secondary capture and purification of the smoke dust, the top of the secondary purification chamber 2 is open, the purified smoke 18 can be conveniently discharged from the top of the secondary purification chamber 2, a plurality of high-pressure cleaning spray heads 11 are uniformly distributed above the water remover 10 in the secondary purification, the high-pressure cleaning spray head 11 is connected to the second pipeline 16, the surface of the dehydrator 10 can be cleaned, a drain outlet 12 communicated with the outside is formed in the lower end wall plate of the second-stage purification chamber 2, and sewage is discharged into the water tank 5 outside the second-stage purification chamber 2 through the drain outlet 12.

The water tank 5 outside the secondary purification chamber 2 is a circulating precipitation purification water tank 5, the circulating precipitation purification water tank 5 is annular and is divided into an area A and an area B by a partition plate 23, the sewage draining exit 12 is communicated with the secondary purifying room 2 and the area A, the area A is a plurality of settling areas divided by a plurality of clapboards 23, the clapboards 23 positioned at the head end of the area A and the tail end of the area B are as high as the wallboard of the water tank 5, the rest of the clapboards 23 are lower than the height of the wallboard of the water tank 5, so that the dust-containing sewage can conveniently flow clockwise after entering the circulating precipitation purification water tank 5 through the sewage discharge outlet 12, when the sewage passes through a plurality of precipitation zones formed by the clapboards 23 in the zone A, the wrapped smoke dust particles are gradually precipitated and purified under the influence of gravity, the purified water finally flows into a B area, the upper part of the circulating precipitation purification water tank 5 is provided with a rain cover to prevent rainwater and foreign matters from entering the water tank 5.

Be provided with water pump 13 in the B district, water pump 13 passes through pipeline valve 14 and pipeline 15 and pipeline two 16 and realizes being connected, realizes the water supply to first stifled atomizer 6, second stifled atomizer 9 and high pressure cleaning shower nozzle 11 of preventing.

Particularly, be provided with the access door more than 3 side surfaces of water in one-level clean room, be convenient for maintain one-level clean room 3, this access door is sealed cooperation when closing between with the wallboard of one-level clean room 3 to prevent the smoke and dust escape.

Particularly, be provided with the access door more than 2 side surface of water of second grade clean room, be convenient for maintain second grade clean room 2, this access door is sealed cooperation between the wallboard of second grade clean room 2 when closing to prevent that the smoke and dust from escaping.

Particularly, the top of second grade clean room 2 is equipped with weather enclosure 17, weather enclosure 17 is fixed through many spliced poles 19 and second grade clean room 2's wallboard, weather enclosure 17 is convex surface form, and its convex surface opening down, can prevent that the rainwater from getting into the clean room from the top.

Specifically, the area A is provided with a mud-water separation briquetting machine 24, the mud-water separation briquetting machine 24 sucks out sludge precipitated at the bottom of the area A through a long sewage suction pipeline, the sludge is drained and then packaged for environment-friendly disposal, and sewage still converges into the area 5A.

Particularly, B district is provided with moisturizing pipeline 20, maintenance valve 21, level sensor 22 and controller, monitors the water yield in the basin 5 through level sensor 22, and when the water in the basin 5 leads to the water level to descend because of evaporation capacity is great or other reasons, the controller receives and opens maintenance valve 21 behind level sensor 22's the signal and carries out the moisturizing to basin 5, overhauls the solenoid valve that valve 21 can select for use, and the PLC controller can be selected for use to the controller.

The working principle is as follows: the air inlet end of a leading-in chimney 1 is connected to the exhaust end of original environment-friendly equipment, flue gas 18 enters an air guide chimney 1, the diversion of gas dusty airflow is realized through a diversion cover 4 and a grid base plate 8 arranged at the lower part of the chimney 1, the effects of gas distribution and reduction of the backpressure of an air outlet of an original dust removal system are achieved, the flue gas 18 is limited in a formed space through a primary purification chamber 3, a first anti-blocking atomization spray head 6 arranged in the primary purification chamber 3 generates atomized water vapor which is combined with smoke dust mixed flow flowing upwards after primary purification at the bottom of a grid, water drops are wrapped on the surfaces of the smoke dust particles, formed dusty water drops fall into a water tank 5 under the influence of gravity, secondary capture and purification of the smoke dust is realized, the gas and the water vapor after combined purification are led out through exhaust ports 7 uniformly distributed around the primary purification chamber 3 and enter a secondary purification chamber 2, and the secondary purification chamber 2 covers the outside the primary purification chamber 3, the smoke 18 guided into the bottom of the grating by the exhaust port 7 of the primary purifying chamber 3 enters into the water again through gravity and inertia effect to realize the secondary catching and purification of smoke particles, the second anti-blocking atomizing nozzle 9 arranged inside the secondary purifying chamber 2 sprays atomized water vapor, the atomized water vapor is mixed and combined with the smoke flowing upwards after the secondary purification at the bottom of the grating, the surface of the smoke particles is wrapped with water drops, the formed dust-containing water drops fall into the water tank 5 under the influence of gravity to realize the secondary catching and purification of the smoke, the top of the secondary purifying chamber 2 is open, the upper part of the chamber body is provided with a water eliminator 10, the water vapor in the water-containing air flow which is discharged after the smoke is removed is discharged to the atmosphere after being removed, the purifying chamber body at the upper part of the water eliminator 10 is provided with an anti-blocking high-pressure cleaning nozzle 11 to realize the cleaning of the surface of the water eliminator 10, the high position at the top, prevent rainwater from entering the purification chamber from the top, the partition plates 23 installed at intervals on the circulating precipitation purification water tank 5 are lower than the wall plates of the water tank 5, dust-containing sewage enters the water tank 5 through the sewage discharge outlet 12 and flows clockwise from the area A, when the sewage passes through each precipitation zone formed by dividing the partition plates 23, the wrapped smoke particles are subjected to gradual precipitation and purification under the influence of gravity and finally are gathered into the area B, the area B and the area A are separated by the partition plates 23 with the same height as the wall plates of the water tank 5, the upper part of the water tank 5 is provided with a rain-proof cover to prevent rainwater and foreign matters from entering the water tank 5, the area A of the water tank 5 is provided with a mud-water separation briquetting machine 24 which is provided with a long sewage suction pipeline for sucking and draining precipitated sludge, the drained and packaged and environmentally-friendly for disposal, the sewage is still gathered into the area A of the circulating water tank 5, the area B of the, and the area B is provided with a water pump 13 which is connected with a first pipeline 15 and a second pipeline 16 through a pipeline valve 14 to realize water supply to the spray head.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a be arranged in steel construction shot-blasting rust cleaning process smoke and dust tail gas cleanup unit, includes leading-in chimney (1), one-level clean room (3), second grade clean room (2) and basin (5), its characterized in that: the air inlet end of the introduction chimney (1) is connected to the exhaust end of the original environment-friendly equipment, the primary purification chamber (3) is arranged in the secondary purification chamber (2), the introduction chimney (1) sequentially penetrates through the side walls of the secondary purification chamber (2) and the primary purification chamber (3) from the upper part, and waterproof sealing treatment is carried out at the connection part of the introduction chimney (1) and the two purification chambers;

the lower end of the primary purification chamber (3) is immersed below the water surface and suspended, the lower end of the primary purification chamber (3) is fixed on a bottom plate of the water tank (5) through support columns, exhaust ports (7) communicated with the secondary purification chamber (2) are uniformly distributed on the periphery of the primary purification chamber (3), a plurality of first anti-blocking atomization spray heads (6) are uniformly distributed above the inner part of the primary purification chamber (3), and the first anti-blocking atomization spray heads (6) are connected to a first pipeline (15);

the wall plate of the secondary purification chamber (2) is welded with the bottom plate of the water tank (5) in a sealing manner, a sewage discharge outlet (12) communicated with the outside is formed in the wall plate at the lower end of the secondary purification chamber (2), the top of the secondary purification chamber (2) is open, a dehydrator (10) is installed on the upper portion of the chamber body, a plurality of second anti-blocking atomizing nozzles (9) are uniformly distributed below the dehydrator (10) in the secondary purification chamber (2), the second anti-blocking atomizing nozzles (9) are connected onto a first pipeline (15), a plurality of high-pressure cleaning nozzles (11) are uniformly distributed above the dehydrator (10) in the secondary purification chamber (2), and the high-pressure cleaning nozzles (11) are connected onto a second pipeline (16);

the water tank (5) outside the secondary purification chamber (2) is a circulating precipitation purification water tank (5), the circulating precipitation purification water tank (5) is annular and is divided into an area A and an area B through a partition plate (23), the sewage discharge port (12) is communicated with the secondary purification chamber (2) and the area A, the area A is a plurality of precipitation areas divided through a plurality of partition plates (23), the partition plates (23) positioned at the head end of the area A and the tail end of the area B are as high as the wallboard of the water tank (5), and the rest partition plates (23) are lower than the wallboard of the water tank (5);

and a water pump (13) is arranged in the area B, and the water pump (13) is connected with a first pipeline (15) and a second pipeline (16) through a pipeline valve (14).

2. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 1, which is characterized in that: purifier still includes guiding device, guiding device includes kuppe (4) and grid base plate (8), grid base plate (8) set up in the surface of water top, and its edge fixes on the wallboard of one-level clean room (3) and second grade clean room (2), kuppe (4) are fixed on grid base plate (8) and kuppe (4) correspond the below of setting at leading-in chimney (1).

3. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 2, is characterized in that: the middle part of the air guide sleeve (4) is of a cone structure, and the periphery of the air guide sleeve is of a horn mouth structure.

4. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 1, which is characterized in that: an access door is arranged above the water surface of the side surface of the primary purification chamber (3).

5. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 1, which is characterized in that: and an access door is arranged above the water surface on the side surface of the secondary purification chamber (2).

6. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 1, which is characterized in that: the exhaust port (7) is of a fan-shaped thin-wall rain shed-shaped structure, and the opening of an arc-shaped structure of the exhaust port faces downwards.

7. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 1, which is characterized in that: the top of second grade clean room (2) is equipped with weather enclosure (17), weather enclosure (17) are fixed through the wallboard of many spliced poles (19) with second grade clean room (2), weather enclosure (17) are convex surface form, and its convex surface opening down.

8. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 1, which is characterized in that: basin (5) A district is provided with mud-water separation briquetting machine (24), mud-water separation briquetting machine (24) are through long sewage suction pipeline suction sediment in the mud of A district bottom, and the packing environmental protection is dealt with after driping mud, and sewage then still converges basin (5) A district.

9. The device for purifying smoke tail gas in the steel structure shot blasting and rust removing process as claimed in claim 1, which is characterized in that: the water tank (5) B area is provided with a water replenishing pipeline (20), a maintenance valve (21), a water level sensor (22) and a controller.

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