Vertical separation and layered liquid drainage organic waste gas filtration and adsorption device

Abstract

The present invention discloses an organic waste gas filtration and adsorption device with vertical separation and layered liquid drainage, which includes a hollow and vertical tower body. Inside the tower body, a upper mesh plate, an upper partition plate and a lower mesh plate are successively arranged from top to bottom; the upper mesh plate, the upper partition plate and the lower mesh plate successively divide the inner cavity of the tower body into an upper filtration chamber, an upper liquid collection chamber, a lower filtration chamber and a lower liquid collection chamber; a wire mesh filter element laid on the upper mesh plate is arranged in the upper filtration chamber; an activated carbon adsorption layer laid on the lower mesh plate is arranged in the lower filtration chamber; an air inlet pipe passing through the upper mesh plate and extending downward into the upper liquid collection chamber is arranged at the top of the tower body, and a gas passing pipe is arranged between the upper filtration chamber and the lower filtration chamber; an upper liquid outlet communicated with the upper liquid collection chamber, an exhaust port communicated with the lower liquid collection chamber and a lower liquid outlet are arranged on the tower body. The device is placed vertically, saving space, realizing high-low separation of activated carbon and waste liquid, prolonging the service life of activated carbon, and being able to realize waste liquid separation and reflux for reuse.

Description

Technical Field

[0001] The present invention relates to an organic waste gas filtering and adsorbing device with vertical separation and layered liquid drainage. Background Art

[0002] Existing organic waste gas treatment devices are usually in a horizontal structure. Secondly, the aerosol separation device and the activated carbon adsorption layer are placed in a horizontal space, and there are deficiencies as follows:

[0003] 1. The aerosol separation efficiency is low. Since the waste liquid separated from the aerosol will directly soak the activated carbon, the efficient separation of the activated carbon and the waste liquid is not achieved. The activated carbon is originally the last barrier for adsorbing special waste gas. However, due to being soaked by the waste liquid, the activated carbon becomes saturated and ineffective in advance, resulting in a short service life, frequent replacement, and an increase in the stock of hazardous waste.

[0004] 2. The waste liquid is stored in the shell for a long time, which easily corrodes the equipment shell, causing serious leakage on site and frequent occurrence of pollution sources and pollution accidents.

[0005] 3. The aerosol separation net and the activated carbon in the horizontal waste gas treatment device adopt a placement structure similar to a drawer type or a grid type. Its placement and installation structure are complex. Due to the high corrosion intensity of the waste gas and the waste liquid, the placement structure or the connection gap of the drawer type or the grid type is easily corroded, deformed, and adhered. After the equipment is used for a period of time, it is difficult to replace the aerosol separation net and the activated carbon, resulting in an increase in the operation cost and labor cost of the enterprise.

[0006] 4. The horizontal shell occupies a large lateral space, increasing the land occupation cost.

[0007] For example, an organic waste gas treatment integrated device with the application number 201720800935.7 adopts the above horizontal structure. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide an organic waste gas filtering and adsorbing device with vertical separation and layered liquid drainage, which has a simple structure, is vertically placed, saves occupied space; can achieve high-position separation of activated carbon and waste liquid, improve the service life of activated carbon; and can achieve waste liquid separation and recycling.

[0009] To solve the above technical problem, the present invention includes a hollow and vertical tower body. Inside the tower body, an upper net plate, an upper partition plate, and a lower net plate are successively arranged from top to bottom. The upper net plate, the upper partition plate, and the lower net plate successively divide the inner cavity of the tower body into an upper filtering chamber, an upper liquid collection chamber, a lower filtering chamber, and a lower liquid collection chamber.

[0010] A wire mesh filter element is arranged on the upper net plate in the upper filtering chamber; an activated carbon adsorption layer is arranged on the lower net plate in the lower filtering chamber.

[0011] An air inlet pipe is provided at the top of the tower body, passing through the upper netting plate and extending downward into the upper liquid collection chamber. An air passing pipe for connecting the two chambers is provided between the upper filtration chamber and the lower filtration chamber.

[0012] The tower body is provided with an upper liquid outlet communicating with the upper liquid collection chamber, an exhaust port communicating with the lower liquid collection chamber, and a lower liquid outlet.

[0013] After adopting the above structure, the organic waste gas first enters the upper liquid collection chamber through the air inlet pipe. Since the space in the upper liquid collection chamber is much larger than that of the air inlet pipe, the flow rate of the waste gas slows down. Then, it slowly passes upward through the wire mesh filter element into the upper filtration chamber. At the same time, the wire mesh filter element filters and collects the vapor and oil mist in the organic waste gas, and the condensed waste liquid drops into the upper liquid collection chamber and is then discharged regularly through the upper liquid outlet. The waste gas in the upper filtration chamber enters the lower filtration chamber downward through the air passing pipe, then passes through the activated carbon adsorption layer and enters the lower liquid collection chamber, and finally is discharged from the exhaust port. A negative pressure fan is installed at the exhaust port. The above-mentioned activated carbon adsorption layer can adsorb the non-methane total hydrocarbons, benzene series such as xylene or hydrocarbon-based gases and residual steam in the waste gas. Secondly, when the activated carbon adsorption layer at a local position is saturated, the waste liquid in the activated carbon adsorption layer will also automatically drop into the lower liquid collection chamber, rather than soaking the entire activated carbon adsorption layer, thus avoiding premature saturation and failure of the activated carbon and improving the service life of the activated carbon. In addition, the upper liquid collection chamber and the lower liquid collection chamber can collect the waste liquid in layers, and through the method of discharging regularly, the waste liquid in different layers is returned to the filtration device in the previous process for reuse, avoiding adding new drugs and water to the filtration device in the previous process again, reducing the cost of the enterprise, avoiding environmental pollution, and improving the utilization rate of the waste liquid.

[0014] Preferably, the air passing pipe is arranged in the inner cavity of the tower body and is eccentrically spaced from the air inlet pipe.

[0015] Preferably, the air inlet pipe is coaxially arranged with the tower body.

[0016] In order to facilitate the quick removal of the activated carbon adsorption layer and its reuse after desorption, the activated carbon adsorption layer is stacked by a plurality of activated carbon adsorption packages. Each activated carbon adsorption package includes a breathable and flexible wire mesh bag, and granular activated carbon is contained in the wire mesh bag.

[0017] In order to facilitate observing the operating states in different chambers, the tower body is provided with transparent observation windows corresponding to the upper filtration chamber, the upper liquid collection chamber, the lower filtration chamber, and the lower liquid collection chamber respectively.

[0018] In order to replace the activated carbon adsorption layer and the wire mesh filter element in the chamber by opening the transparent observation window, the transparent observation window is installed on the tower body with an openable connection structure.

[0019] In order to further improve the aerosol separation effect, a condensation filter plate is provided in the tower body to divide the upper filter chamber into an upper chamber and a lower chamber. The upper pipe orifice of the air pipe is located in the upper chamber, and the condensation filter plate is provided with pores for condensing and adsorbing water mist in the air during the process of allowing the air in the lower chamber to enter the upper chamber.

[0020] In order to improve the condensation effect, the condensation filter plate includes a cold water pipe horizontally arranged in a surrounding manner, and the water inlet and outlet of the cold water pipe both extend outside the tower body; a layer of metal fin layer is respectively connected to the upper side and the lower side of the cold water pipe.

[0021] The air pipe is located outside the tower body. The air pipe includes a vertical pipe arranged vertically. The upper end of the vertical pipe is provided with an upper horizontal pipe communicating with the upper chamber, and the lower end is provided with a lower horizontal pipe communicating with the lower filter chamber.

[0022] In order to further improve the aerosol separation effect, the pipe wall of the vertical pipe is a hollow pipe wall. The upper end and the lower end of the vertical pipe are successively provided with an upper water outlet and a lower water inlet communicating with the hollow pipe wall. The bottom of the lower horizontal pipe is provided with a liquid collecting cover for collecting condensed water droplets, and the bottom of the liquid collecting cover is provided with an openable water discharge port.

[0023] To sum up, the present invention is vertically arranged, saving space; the activated carbon adsorption layer and the wire mesh filter element are convenient to replace and are installed at a high position, avoiding being soaked by waste liquid, improving the service life and reducing the cost of the enterprise; the waste liquid can be stratified, separated and collected in stages and recycled to the front process for reuse, and the aerosol separation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0025] Figure 1 is the front view structural schematic diagram of the present invention;

[0026] Figure 2 is Figure 1 the cross-sectional structural schematic diagram along A-A in

[0027] Figure 3 is the front view structural schematic diagram of the present invention with the condensation filter plate structure;

[0028] Figure 4 is Figure 3 the cross-sectional structural schematic diagram along B-B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] As Figure 1-2As shown in the figure, the organic waste gas filtering and adsorbing device for vertical separation and layered liquid drainage includes a hollow and vertical tower body 1. The tower body 1 is cylindrical. Inside the tower body 1, there are successively arranged an upper mesh plate 2, an upper partition plate 3 and a lower mesh plate 4 which are parallel and spaced from top to bottom. The outer sides of the upper mesh plate 2, the upper partition plate 3 and the lower mesh plate 4 are respectively fixedly connected to the inner wall surface of the tower body 1. Secondly, the upper mesh plate 2 and the lower mesh plate 4 are evenly distributed with liquid leakage holes penetrating up and down; the upper mesh plate 2, the upper partition plate 3 and the lower mesh plate 4 successively divide the inner cavity of the tower body 1 into an upper filtering chamber 5, an upper liquid collecting chamber 6, a lower filtering chamber 7 and a lower liquid collecting chamber 8. The upper and lower heights of the upper filtering chamber 5, the upper liquid collecting chamber 6, the lower filtering chamber 7 and the lower liquid collecting chamber 8 are respectively approximately equal; secondly, the tower body 1 is provided with an upper liquid outlet 13 communicated with the upper liquid collecting chamber 6, an exhaust port 14 communicated with the lower liquid collecting chamber 8 and a lower liquid outlet 15. Valves or water pumps with timed opening and closing are arranged outside the upper liquid outlet 13 and the lower liquid outlet 15, and a negative pressure fan is installed at the exhaust port 14.

[0030] Secondly, a wire mesh filter element 9 is arranged in the upper filtering chamber 5 and laid on the upper mesh plate 2. The wire mesh filter element 9 can be made of a flexible polytetrafluoroethylene wire mesh or a titanium wire mesh, and multiple layers of wire meshes are sewn together. The thickness of the wire mesh filter element 9 can be set according to actual needs. In order to facilitate the replacement and removal of the wire mesh filter element 9, the wire mesh filter element 9 is composed of several net body cores that can be spliced and placed on the upper mesh plate 2; secondly, an activated carbon adsorption layer 10 is arranged in the lower filtering chamber 7 and laid on the lower mesh plate 4; in order to facilitate the quick removal of the activated carbon adsorption layer 10 and its recycling after desorption again, the activated carbon adsorption layer 10 is stacked by several activated carbon adsorption packages. Each activated carbon adsorption package includes a breathable and flexible wire mesh bag, and granular activated carbon is contained in the wire mesh bag.

[0031] As Figure 1-2 shown, an air inlet pipe 11 is arranged at the top of the tower body 1, passing through the upper mesh plate 2 and extending downward into the upper liquid collecting chamber 6. The air inlet pipe 11 is preferably coaxially arranged with the tower body 1. The lower pipe orifice of the air inlet pipe 11 is spaced from the upper partition plate 3 by a certain distance. This distance can not only ensure that when the waste gas is blown out from the air inlet pipe 11, the waste gas can directly impact the waste liquid below, so that the steam, impurities and oil mist in the waste gas are directly adsorbed by the waste liquid, and secondly, it can also ensure that there is a certain height of waste liquid retention in the upper liquid collecting chamber 6; secondly, an air pipe 12 communicating the upper filtering chamber 5 and the lower filtering chamber 7 is also arranged between the upper filtering chamber 5 and the lower filtering chamber 7. As Figure 1 shown, in the present invention, the air pipe 12 is preferably vertically arranged in the inner cavity of the tower body 1 and is eccentrically spaced from the air inlet pipe 11. The diameter of the air pipe 12 is preferably equal to the diameter of the air inlet pipe 11.

[0032] In addition, for the convenience of observing the operating states in different chambers, the tower body 1 is provided with transparent observation windows 16 respectively corresponding to the upper filtration chamber 5, the upper liquid collection chamber 6, the lower filtration chamber 7 and the lower liquid collection chamber 8; and in order to replace the activated carbon adsorption layer 10 and the wire mesh filter element 9 in the chamber by opening the transparent observation window 16, the transparent observation window 16 is installed on the tower body 1 with an openable connection structure, and the transparent observation window 16 can be hinged to the tower body 1.

[0033] As Figure 3-4 shown, in order to further improve the aerosol separation effect, a condensation and gas filtering plate for separating the upper filtration chamber 5 into an upper chamber 17 and a lower chamber 18 can also be provided in the tower body 1. At this time, the upper pipe orifice of the gas passing pipe 12 will extend into the upper chamber 17, and the condensation and gas filtering plate is provided with pores for condensing and adsorbing the water mist in the air during the process of allowing the air in the lower chamber 18 to enter the upper chamber 17. And in order to improve the condensation effect, the condensation and gas filtering plate preferably includes a cold water pipe 19 horizontally arranged around the inner wall of the tower body 1 between the intake pipe and the gas passing pipe 12. The cold water pipe 19 is made of stainless steel, and the water inlet and the water outlet of the cold water pipe 19 both extend out of the outer side of the tower body 1 and are communicated with a circulating water pump and a water tank; and a layer of metal fin layer 20 is respectively welded on the upper side and the lower side of the cold water pipe.

[0034] In addition, the gas passing pipe 12 can also be located outside the tower body 1, and this structure is not shown in the figure. At this time, the gas passing pipe 12 includes a vertical pipe, the upper end of the vertical pipe is provided with an upper horizontal pipe communicated with the upper chamber 17, and the lower end is provided with a lower horizontal pipe communicated with the lower filtration chamber 7. And in order to further separate the residual water mist and prevent the residual water vapor from entering the activated carbon adsorption layer, preferably, the pipe wall of the vertical pipe is a hollow pipe wall, and an upper water outlet and a lower water inlet communicating with the hollow pipe wall are sequentially arranged at the upper end and the lower end of the vertical pipe. The upper water outlet and the lower water inlet are communicated with an external circulating water pump and a water storage tank. At this time, the residual steam will condense on the inner pipe wall of the vertical pipe. At the same time, a liquid collection cover for collecting the condensed water droplets is hermetically connected to the bottom of the lower horizontal pipe, and an openable drain port is provided at the bottom of the liquid collection cover, and the residual waste liquid can be discharged regularly through the drain port; secondly, a plurality of metal fins with good heat conduction effect can also be welded in the lumen of the vertical pipe, so as to rely on the vertical pipe to cool the metal fins, and then improve the condensation effect.

[0035] In summary, the present invention is not limited to the above specific embodiments. Those skilled in the art can make several changes and modifications without departing from the spirit and scope of the present invention, and all these changes should fall within the protection scope of the present invention.

Claims

1. An organic waste gas filtration and adsorption device with vertical separation and layered liquid drainage, characterized in that: It includes a hollow and vertical tower body (1), and inside the tower body (1), a top net plate (2), an upper partition plate (3), and a bottom net plate (4) are successively arranged from top to bottom; the top net plate (2), the upper partition plate (3), and the bottom net plate (4) successively divide the inner cavity of the tower body (1) into an upper filtering chamber (5), an upper liquid collecting chamber (6), a lower filtering chamber (7), and a lower liquid collecting chamber (8); Inside the upper filtering chamber (5), a wire mesh filter element (9) laid on the top net plate (2) is provided; inside the lower filtering chamber (7), an activated carbon adsorption layer (10) laid on the bottom net plate (4) is provided; At the top of the tower body (1), an air inlet pipe (11) passing through the top net plate (2) and extending downward into the upper liquid collecting chamber (6) is provided, and an air passing pipe (12) for communicating the two chambers is provided between the upper filtering chamber (5) and the lower filtering chamber (7); On the tower body (1), an upper liquid outlet (13) communicated with the upper liquid collecting chamber (6), an exhaust port (14), and a lower liquid outlet (15) communicated with the lower liquid collecting chamber (8) are provided; Inside the tower body (1), a condensation and gas filtering plate that divides the upper filtering chamber (5) into an upper chamber (17) and a lower chamber (18) is provided. The upper pipe orifice of the air passing pipe (12) is located in the upper chamber (17), and the condensation and gas filtering plate is provided with pores for condensing and adsorbing water mist in the air during the process of allowing the air in the lower chamber (18) to enter the upper chamber (17).

2. The vertical separation and layered liquid drainage organic waste gas filtration and adsorption device according to claim 1, characterized in that : The air passing pipe (12) is arranged in the inner cavity of the tower body (1) and is eccentrically spaced from the air inlet pipe (11).

3. The vertical separation and layered liquid drainage organic waste gas filtration and adsorption device according to claim 1, wherein : The air inlet pipe (11) is coaxially arranged with the tower body (1).

4. The vertical separation and layered liquid drainage organic waste gas filtration and adsorption device according to claim 1, characterized in that : The activated carbon adsorption layer (10) is stacked by a plurality of activated carbon adsorption packages. Each activated carbon adsorption package includes a breathable and flexible wire mesh bag, and granular activated carbon is contained in the wire mesh bag.

5. The vertical separation and layered liquid drainage organic waste gas filtration and adsorption device according to claim 1, characterized in that : On the tower body (1), transparent observation windows (16) corresponding to the upper filtering chamber (5), the upper liquid collecting chamber (6), the lower filtering chamber (7), and the lower liquid collecting chamber (8) are provided respectively.

6. The vertical separation and layered liquid drainage organic waste gas filtering and adsorbing device according to claim 5, characterized in that : The transparent observation window (16) is installed on the tower body (1) with an openable connection structure.

7. The vertical separation and layered liquid drainage organic waste gas filtration and adsorption device according to claim 1, characterized in that : The condensation and gas filtering plate includes a cold water pipe (19) arranged horizontally in a surrounding manner. The water inlet and outlet of the cold water pipe (19) both extend outside the tower body (1); on the upper side and the lower side of the cold water pipe (19), a layer of metal fin layer (20) is respectively connected.

8. The vertical separation and layered liquid drainage organic waste gas filtering and adsorbing device according to claim 1, characterized in that : The air passing pipe (12) is located outside the tower body (1). The air passing pipe (12) includes a vertically arranged vertical pipe. The upper end of the vertical pipe is provided with an upper horizontal pipe communicated with the upper chamber (17), and the lower end is provided with a lower horizontal pipe communicated with the lower filtering chamber (7).

9. The vertical separation and layered liquid drainage organic waste gas filtration and adsorption device according to claim 8, characterized in that : The pipe wall of the vertical pipe is a hollow pipe wall. The upper end and the lower end of the vertical pipe are successively provided with an upper water outlet and a lower water inlet communicating with the hollow pipe wall. The bottom of the lower horizontal pipe is provided with a liquid collecting cover for collecting condensed water droplets, and the bottom of the liquid collecting cover is provided with an openable water discharge port.

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