WO2021017466A1 - Device capable of performing waste gas purification and dust removal in industrial workshop - Google Patents

Abstract

A device capable of performing waste gas purification and dust removal in an industrial workshop comprising an air inlet seat (2) and a filter cartridge (11). A power box (3) is connected at the center of a top end surface of the air inlet seat (2). A bottom end surface of an inner cavity of the power box (3) communicates with an air inlet. A sealing box (22) is provided at the center of a top end surface of the inner cavity of the power box (3). An axial flow fan (23) is provided in an inner cavity of the sealing box (22). When driven by power, the axial flow fan (23) rotationally passes through a bottom end surface of the sealing box (22). Air outlets (12) using the sealing box (22) as the center of symmetry are provided at the top end surface of the power box (3). The top end surface of the power box (3) is connected to an air duct (4) communicating with the two air outlets (12). An end of the air duct (4) communicates with a left end of an inner cavity of the filter cartridge (11). A sealing partition plate (15) is provided between an upper side wall and a lower side wall at a middle section of the inner cavity of the filter cartridge (11). The inner cavity of the filter cartridge (11) is equally divided by the sealing partition plate (15) into an acid treatment cavity (20) and an alkaline treatment cavity (17).

Description

Waste gas purification and dust removal device in industrial workshop Technical field

The present invention relates to the related technical field of industrial waste gas purification and dust removal, in particular to an industrial workshop waste gas purification and dust removal device.

Background technique

Processing operations in industrial workshops will produce a certain amount of waste gas. Waste gas is a key factor that pollutes the air quality. In recent years, with the development of industrial technology, people are pursuing green and sustainable production while ensuring production. For some raw materials used in the workshop, it is easy to volatilize acidic or alkaline harmful gases during the production process. These gases will bring great harm to human health and greatly increase the probability of employees suffering from occupational diseases. In order to improve the working environment of the workshop and safeguard the legitimate rights and interests of employees, some manufacturers use large-scale ventilation equipment and corresponding ducted exhaust systems to collect harmful gases volatilized from the production process and directly exhaust them to the outside of the workshop through ducts. The working environment of the workshop plays a certain role in improving, but it will pollute the external environment, and it is not environmentally friendly. It cannot adequately filter the harmful gases generated in the workshop, and it takes up a lot of space. An industrial workshop waste gas purification and dust removal is designed here. Device in order to solve the above problems.

technical problem

The purpose of the present invention is to provide an exhaust gas purification and dust removal device for industrial workshops to solve the problems raised in the background art.

Technical solutions

In order to achieve the above objective, the present invention provides the following technical solutions: an industrial workshop exhaust gas purification and dust removal device, comprising an air inlet seat and a filter box, the center of the air inlet seat is provided with an air inlet, and the center of the top surface of the air inlet seat A power box is connected, and the bottom end surface of the inner cavity of the power box communicates with the air inlet. The center of the top surface of the inner cavity of the power box is provided with a sealed box, and the inner cavity of the sealed box is provided with an axial fan. The fan penetrates the bottom end surface of the sealed box by power rotation, and is connected with fan blades. The top surface of the power box is provided with an air outlet with the sealed box as the center of symmetry. The top surface of the power box is connected with two exhaust The air duct connected with the air outlet, the end of the air duct is communicated with the left end of the inner cavity of the filter box, the inner cavity of the filter box is provided with a sealing partition between the upper and lower side walls, and the sealing partition is used as The center is divided into an acid processing cavity and an alkaline processing cavity, and the right end surface of the filter box is connected with an exhaust pipe communicating with the inner cavity of the alkaline processing cavity.

Preferably, four corner positions of the air inlet seat are provided with mounting holes.

Preferably, a filter net is laid on the side wall of the inner cavity of the air inlet of the air inlet seat, and the mesh diameter of the filter net is between 1 mm and 2 mm.

Preferably, the top end of the sealing partition is provided with an air guide hole which conducts the acid processing chamber and the alkaline processing chamber.

Preferably, the top surface of the filter box is provided with two left-right symmetrical pump bodies, the water inlets of the two pump bodies are connected with a liquid suction pipe, and the water outlets of the two pump bodies are connected with a drain tube.

Preferably, the two suction pipes penetrate the top surface of the filter box, and respectively extend to the bottom end surface of the inner cavity of the acid treatment chamber and the bottom end surface of the inner cavity of the alkaline treatment chamber.

Preferably, the left side of the inner cavity top surface of the acid treatment chamber and the right side of the inner cavity top surface of the alkaline treatment chamber are both fixed with front and rear liquid spray pipes, and the bottom ends of the two liquid spray pipes are both fixed. There are spouts.

Preferably, the front and rear ends of the two liquid spray pipes are flush with the front and rear side walls of the inner cavity of the filter box.

Preferably, the top surface of the filter box is provided with an infusion tube communicating with the inner cavities of the acid treatment chamber and the alkali treatment chamber, and the openings of the two infusion tubes are connected with first sealing plugs by threads.

Preferably, the bottom end surface of the filter box is provided with a waste liquid discharge pipe communicating with the inner cavities of the acid processing chamber and the alkaline processing chamber, and the opening of the waste liquid discharge pipe is connected with a second sealing plug through a thread.

Preferably, the specific use steps are:

(A1). Before use, place the overall structure on the ceiling of the beam of the workshop room, and finally only open the air inlet in the center of the air inlet seat to expose to the outside to facilitate the air intake, first pass the filter to the first filter layer , To prevent large-volume impurity particles from entering the inner cavity of the filter box, in addition, hypochlorous acid solution and strong sodium oxide solution are filled into the inner cavity of the acid treatment chamber and the alkali treatment chamber through two infusion pipes;

(A2), start the axial flow fan, the axial flow fan drives the fan blades to rotate quickly, generating negative pressure, the air in the workshop can be drawn into the inner cavity of the power box through the air inlet of the air inlet seat, and then the air The gas in the workshop is guided into the air duct, and then delivered to the left side of the inner cavity of the filter box through the tail end of the air duct, that is, into the inner cavity of the acid treatment chamber;

(A3). Start the two pump bodies at the same time. Through the pump bodies, the hypochlorous acid liquid and sodium hydroxide liquid in the acid processing chamber and the alkaline processing chamber are pumped up through the suction pipe, and discharged to the The liquid spray pipes in the inner cavity of the acid treatment chamber and the alkaline treatment chamber are finally discharged through the nozzle to form a water curtain. The exhaust gas first enters the inner cavity of the acid treatment chamber, passes through the water curtain formed by the hypochlorous acid solution, and then enters the exhaust gas. The alkaline gas is neutralized with the hypochlorous acid solution, and then the filtered waste liquid is discharged to the inner cavity of the alkaline treatment chamber through the air guide hole, and the water curtain formed by the sodium hydroxide liquid will prevent the exhaust gas from The acid gas in the gas is neutralized and then discharged through the exhaust pipe;

(A4). Open the second sealing plug and drain the used hypochlorous acid liquid and sodium hydroxide liquid through the waste liquid discharge pipe, and then plug in the second sealing plug to block the waste liquid discharge pipe, which can be replaced with a new one again Hypochlorous acid liquid and sodium hydroxide liquid in order to continue to filter and neutralize the exhaust gas.

Beneficial effect

1. The present invention is an exhaust gas purification and dust removal device for industrial workshops. The hypochlorous acid liquid and sodium hydroxide liquid in the acid treatment chamber and the alkaline treatment chamber are pumped up through the suction pipe through the pump body, and respectively passed through the drain The pipes are discharged to the liquid spray pipes in the acid treatment chamber and alkaline treatment chamber, and finally discharged through the nozzle to form a water curtain, which changes the traditional way of directly discharging the exhaust gas into the hypochlorous acid liquid and sodium hydroxide liquid, which can prevent Liquid countercurrent.

2. When the exhaust gas is filtered in the present invention, the exhaust gas first enters the inner cavity of the acid treatment chamber and passes through the water curtain formed by the hypochlorous acid solution. Then the alkaline gas contained in the exhaust gas and the hypochlorous acid solution undergo a neutralization reaction, and then The filtered waste liquid is discharged to the inner cavity of the alkaline treatment chamber through the air guide hole, and the acid gas contained in the exhaust gas is neutralized by the water curtain formed by the sodium hydroxide liquid, and then it can be passed through the exhaust pipe Exhaust, can filter and neutralize the workshop waste gas, in order to reduce the harm to the workers, and can meet the external emission standards, reduce the pollution to the outside air, and pass the hypochlorous acid solution and sodium hydroxide liquid at the same time Wash and filter the small impurities in the exhaust gas to improve the effect of purifying and removing dust in the exhaust gas.

Description of the drawings

Figure 1 is a schematic diagram of the main structure of the present invention;

Figure 2 is a cross-sectional view of the present invention;

Fig. 3 is a left structural sectional view of the filter box of the present invention.

In the picture: 1. Mounting hole; 2. Air inlet seat; 3. Power box; 4. Air duct; 5. Pump body; 6. Drain pipe; 7. Suction pipe; 8. Infusion pipe; 9. A sealing plug; 10, exhaust pipe; 11, filter box; 12, air outlet; 13, nozzle; 14, spray pipe; 15, sealed partition; 16, air guide hole; 17, alkaline treatment chamber; 18 , The second sealing plug; 19, waste liquid discharge pipe; 20, acid treatment chamber; 21, fan blade; 22, sealed box; 23, axial fan; 24, filter screen.

Embodiments of the invention

The embodiments of this application solve the problems raised in the prior art by providing an exhaust gas purification and dust removal device for industrial workshops; the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Referring to Figures 1-3, this embodiment provides an exhaust gas purification and dust removal device for industrial workshops, which includes an air inlet seat 2 and a filter box 11. The center of the air inlet seat 2 is provided with an air inlet, and the center of the top surface of the air inlet seat 2 The power box 3 is connected, and the bottom end surface of the inner cavity of the power box 3 communicates with the air inlet. The center of the top surface of the inner cavity of the power box 3 is provided with a sealed box 22, and the inner cavity of the sealed box 22 is provided with an axial fan 23. The fan 23 penetrates the bottom end surface of the sealed box 22 by power rotation, and is connected with a fan blade 21. The top surface of the power box 3 is provided with an air outlet 12 centered on the sealed box 22, and the top surface of the power box 3 is connected with The two air outlets 12 communicate with the air guide tube 4, the end of the air guide tube 4 communicates with the left end of the inner cavity of the filter box 11, and a sealing partition 15 is provided between the upper and lower side walls of the inner cavity of the filter box 11, and The sealed partition 15 is divided into an acid treatment chamber 20 and an alkaline treatment chamber 17. The right end surface of the filter box 11 is connected with an exhaust pipe 10 communicating with the inner cavity of the alkaline treatment chamber 17.

The four corners of the air inlet seat 2 are provided with mounting holes 1, through the mounting holes 1, it is convenient to install the air inlet seat 2 on the ceiling of the workshop.

The side wall of the inner cavity of the air inlet of the air inlet seat 2 is laid with a filter net 24, the mesh diameter of the filter net 24 is between 1mm-2mm, and the first filter layer is formed by setting the filter net 24 to avoid large particles of impurities Enter the filter box 11.

The top of the sealing partition 15 is provided with an air guide hole 16 that conducts the acid treatment chamber 20 and the alkaline treatment chamber 17. The air guide hole 16 facilitates the communication between the acid treatment chamber 20 and the alkaline treatment chamber 17, so as to realize the flow of exhaust gas and filter treatment. .

The top surface of the filter box 11 is provided with two left-right symmetrical pump bodies 5, the water inlets of the two pump bodies 5 are connected with a liquid suction pipe 7, and the water outlets of the two pump bodies 5 are connected with a discharge pipe 6, two The two suction pipes 7 penetrate the top surface of the filter box 11, and respectively extend to the bottom end surface of the inner cavity of the acid processing chamber 20 and the bottom end surface of the inner cavity of the alkaline processing chamber 17, which are brought to the acid processing chamber 20 by two pump bodies 5. The solution in the inner cavity and the solution in the inner cavity of the alkaline treatment chamber 17 can respectively form a circulating flow, and the exhaust gas can be neutralized without interruption.

The left side of the top surface of the inner cavity of the acid processing chamber 20 and the right side of the top surface of the inner cavity of the alkaline processing chamber 17 are both fixedly provided with front and rear liquid spray pipes 14, and the bottom surfaces of the two spray pipes 14 are both provided with nozzles 13 , It is convenient to spray the liquid through the nozzle 13 of the spray pipe 14, and the sprayed liquid has a certain pressure to form a water curtain.

Both the front and rear ends of the two spray pipes 14 are flush with the front and rear side walls of the inner cavity of the filter box 11, so as to prevent the exhaust gas from passing through the inner cavity of the acid processing chamber 20 and the inner cavity of the alkaline processing chamber 17. It is not filtered and neutralized, which affects the effect of purification and dust removal.

The top surface of the filter box 11 is provided with an infusion tube 8 communicating with the inner cavities of the acid treatment chamber 20 and the alkaline treatment chamber 17, and the openings of the two infusion tubes 8 are both threadedly connected with a first sealing plug 9 through the A sealing plug 9 is convenient to block the openings of the two infusion tubes 8.

The bottom end of the filter box 11 is provided with a waste liquid discharge pipe 19 communicating with the inner cavities of the acid processing chamber 20 and the alkaline processing chamber 17, and the opening of the waste liquid discharge pipe 19 is connected with a second sealing plug 18 through a screw thread. The second sealing plug 18 is convenient to block the opening of the waste liquid discharge pipe 19.

In the embodiment of the present invention, before use, the overall structure is placed on the suspended ceiling of the workshop room beam, and finally only the center of the air inlet seat 2 is provided with an air inlet to be exposed to the outside to facilitate the air intake. A filter layer to prevent large-volume impurity particles from entering the inner cavity of the filter box 11. In addition, hypochlorous acid solution and strong sodium oxide solution are filled into the acid treatment chamber 20 and alkaline treatment through two infusion pipes 8 respectively The inner cavity of the cavity 17; start the axial flow fan 23, the axial flow fan 23 drives the blade 21 to rotate rapidly, generating negative pressure, and the air in the workshop can be drawn into the inner cavity of the power box 3 through the air inlet of the air inlet seat 2. The gas in the workshop is guided into the air duct 4 through the two air outlets 12, and then transported to the left side of the inner cavity of the filter box 11 through the tail end of the air duct 4, that is, into the inner cavity of the acid treatment chamber 20; The two pump bodies 5 are started, and the hypochlorous acid liquid and sodium hydroxide liquid in the acid processing chamber 20 and the alkaline processing chamber 17 are pumped up through the pumping pipe 7 through the pump body 5, and discharged through the drain pipe 6 respectively. The liquid spray pipe 14 to the inner cavity of the acid treatment chamber 20 and the alkaline treatment chamber 17 is finally discharged through the nozzle 13 to form a water curtain, which changes the traditional way of directly discharging the exhaust gas into the hypochlorous acid liquid and sodium hydroxide liquid. It can prevent the liquid from flowing back. The exhaust gas first enters the inner cavity of the acid treatment chamber 20 and passes through the water curtain formed by the hypochlorous acid solution. Then the exhaust gas contains alkaline gas and the hypochlorous acid solution undergoes neutralization reaction, and then passes through the air guide hole 16 The filtered waste liquid is discharged to the inner cavity in the alkaline treatment chamber 17, and the acid gas contained in the exhaust gas is neutralized by the water curtain formed by sodium hydroxide liquid, and then it can be discharged through the exhaust pipe 10 ; Open the second sealing plug 18, the used hypochlorous acid liquid and sodium hydroxide liquid can be discharged through the waste liquid discharge pipe 19, and then plug the second sealing plug 18 to block the waste liquid discharge pipe 19, which can be replaced again The new hypochlorous acid liquid and sodium hydroxide liquid can continue to filter and neutralize the exhaust gas. At the same time, the hypochlorous acid solution and sodium hydroxide liquid are used to flush and filter the small impurities in the exhaust gas to improve the effect of purification and dust removal of the exhaust gas.

Among them, the model of the axial fan 23 is JSF-Z, and the model of the pump body 5 is XBD-HY, which can also be freely selected according to usage requirements.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal" and the like are based on the directions or positional relationships shown in the drawings, and are only for It is convenient to describe and simplify the description of the present invention, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should also be noted that the terms "set", "installation", "connected", and "connected" should be interpreted broadly unless otherwise clearly defined and restricted. For example, it can be a fixed connection or a fixed connection. It can be a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or a communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. And variations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (11)

An exhaust gas purification and dust removal device for industrial workshops, comprising an air inlet seat (2) and a filter box (11), characterized in that: the center of the air inlet seat (2) is provided with an air inlet, and the air inlet seat (2) A power box (3) is connected to the center of the top surface of the power box (3), and the bottom end surface of the inner cavity of the power box (3) communicates with the air inlet. The center of the top surface of the inner cavity of the power box (3) is provided with a sealed box (22), so The inner cavity of the sealed box (22) is provided with an axial flow fan (23), the axial flow fan (23) penetrates the bottom end surface of the sealed box (22) by power rotation, and is connected with a fan blade (21). The top surface of the power box (3) is provided with an air outlet (12) with the sealed box (22) as the center of symmetry. The top surface of the power box (3) is connected with two air outlets (12). The air duct (4), the end of the air duct (4) communicates with the left end of the inner cavity of the filter box (11), and the upper and lower side walls of the inner cavity of the filter box (11) are provided with a sealed partition The plate (15) is divided into an acid treatment chamber (20) and an alkaline treatment chamber (17) centered on the sealed partition (15). The right end surface of the filter box (11) is connected with the alkaline treatment chamber ( 17) Exhaust pipe (10) connected to the inner cavity. An industrial workshop waste gas purification and dust removal device according to claim 1, characterized in that: the four corner positions of the air inlet seat (2) are provided with mounting holes (1). The exhaust gas purification and dust removal device for industrial workshops according to claim 1, characterized in that: the side wall of the inner cavity of the air inlet of the air inlet seat (2) is laid with a filter screen (24), and the filter screen (24) ) The mesh diameter is between 1mm-2mm. The exhaust gas purification and dust removal device for industrial workshops according to claim 1, characterized in that: the top of the sealing partition (15) is provided with a guide connecting the acid treatment chamber (20) and the alkaline treatment chamber (17). Stoma (16). An industrial workshop exhaust gas purification and dust removal device according to claim 1, characterized in that: the top surface of the filter box (11) is provided with two left-right symmetrical pump bodies (5), two pump bodies ( 5) The water inlets are all connected with a liquid suction pipe (7), and the water outlets of the two pump bodies (5) are both connected with a drain pipe (6). The exhaust gas purification and dust removal device for industrial workshops according to claim 5, characterized in that: the two suction pipes (7) penetrate the top surface of the filter box (11), and respectively extend to the acid treatment chamber (20) The bottom end surface of the inner cavity and the bottom end surface of the inner cavity of the alkaline processing chamber (17). The waste gas purification and dust removal device for industrial workshops according to claim 5, characterized in that: the left side of the inner cavity top surface of the acid treatment chamber (20) and the right side of the inner cavity top surface of the alkaline treatment chamber (17) The liquid spray pipes (14) distributed forward and backward are fixedly arranged, and the bottom end surfaces of the two liquid spray pipes (14) are both provided with spray ports (13). The exhaust gas purification and dust removal device for industrial workshops according to claim 7, characterized in that: the front and back ends of the two liquid spray pipes (14) are flush with the front and rear side walls of the inner cavity of the filter box (11). The exhaust gas purification and dust removal device for industrial workshops according to claim 1, characterized in that: the top surface of the filter box (11) is provided with an inner cavity connected to an acid treatment chamber (20) and an alkaline treatment chamber (17). The infusion tube (8) is connected, and the openings of the two infusion tubes (8) are both connected with a first sealing plug (9) through threads. An industrial workshop waste gas purification and dust removal device according to claim 1, characterized in that: the bottom end surface of the filter box (11) is provided with an inner cavity connected to an acid treatment chamber (20) and an alkaline treatment chamber (17). A connected waste liquid discharge pipe (19), and the opening of the waste liquid discharge pipe (19) is screwed with a second sealing plug (18). An industrial workshop waste gas purification and dust removal device according to claim 1, wherein the specific use steps are: (A1). Before use, place the overall structure on the ceiling of the beam of the workshop room, and finally only expose the air inlet in the center of the air inlet seat (2) to the outside to facilitate the air intake. First, pass the filter (24). Go to the first filter layer to prevent large-volume impurity particles from entering the inner cavity of the filter box (11). In addition, the hypochlorous acid solution and strong sodium oxide solution are filled into the acid treatment through two infusion pipes (8). The cavity (20) and the inner cavity of the alkaline treatment cavity (17); (A2). Start the axial flow fan (23), drive the fan blades (21) to rotate quickly through the axial flow fan (23), generate negative pressure, and draw the gas in the workshop into power through the air inlet of the air inlet seat (2) In the inner cavity of the box (3), the gas in the workshop is then guided into the air duct (4) through the two air outlets (12), and then delivered to the filter box (11) through the tail end of the air duct (4) The left side of the cavity is the inner cavity of the acid processing cavity (20); (A3). Start the two pump bodies (5) at the same time, and pump the hypochlorous acid liquid and sodium hydroxide liquid in the acid processing chamber (20) and alkaline processing chamber (17) through the pump body (5). The pipe (7) is drawn up and discharged to the spray pipe (14) of the acid treatment chamber (20) and alkaline treatment chamber (17) through the discharge pipe (6), and finally discharged through the nozzle (13), A water curtain is formed. The exhaust gas first enters the inner cavity of the acid treatment chamber (20) and passes through the water curtain formed by the hypochlorous acid solution. Then the exhaust gas contains alkaline gas and the hypochlorous acid solution undergoes neutralization reaction, and then passes through The air guide hole (16) discharges the filtered waste liquid to the inner cavity in the alkaline treatment chamber (17), and passes through the water curtain formed by the sodium hydroxide liquid to neutralize the acid gas contained in the exhaust gas, and then immediately Can be discharged through the exhaust pipe (10); (A4), open the second sealing plug (18), the used hypochlorous acid liquid and sodium hydroxide liquid can be discharged through the waste liquid discharge pipe (19), and then plug the second sealing plug (18) to block The waste liquid discharge pipe (19) can be replaced with new hypochlorous acid liquid and sodium hydroxide liquid again, so as to continue to filter and neutralize the exhaust gas.