Coal chemical non-methane total hydrocarbon adsorption device

Abstract

The utility model discloses a kind of coal chemical non-methane total hydrocarbon's adsorption device, belong to coal chemical technology field, including base, the top of the base is provided with liquid collection tank, the top of the liquid collection tank is provided with condensing mechanism, the side of the liquid collection tank is provided with drain valve, the top of the base is provided with two resin adsorption tanks, the top of two resin adsorption tanks is respectively fixedly connected with second conduit. In the utility model, by setting two resin adsorption tanks, by first three-way electric control valve, gas is intermittently entered into the inner cavity of resin adsorption tank and purified by resin filler, when the resin filler in the inner cavity of one resin adsorption tank purifies gas, the sealing door can be opened to replace the resin filler in the inner cavity of another resin adsorption tank, to ensure the function of replacing resin filler under the condition that the device does not stop.

Description

Technical Field

[0001] This utility model relates to the field of coal chemical technology, and more specifically, to an adsorption device for non-methane total hydrocarbons in coal chemical industry. Background Technology

[0002] Coal chemical industry refers to the process of using coal as raw material and chemically processing it into gaseous, liquid, and solid fuels and chemicals. It mainly includes coal gasification, liquefaction, dry distillation, as well as coal tar processing and calcium carbide acetylene chemical processing. With the rapid development of modern coal chemical industry, non-methane total hydrocarbons are generated during its production process, requiring adsorption treatment.

[0003] A search revealed a utility model patent with publication number CN216498422U, which discloses an adsorption device for non-methane total hydrocarbons in coal chemical industry. The device includes a condenser, a resin adsorption tank, and a liquid collection tank. An annular fastener is welded to the outer wall of the resin adsorption tank, and a liquid collection tank is bolted to the annular fastener. A tail gas inlet pipe is connected to the top of the condenser, and a discharge pipe is connected to the bottom of the condenser. In this adsorption device, the tail gas temperature is first deeply cooled to -15 degrees Celsius using a condenser, and then adsorbed and recovered through the resin adsorption tank. The non-methane total hydrocarbons in the tail gas are liquefied and adsorbed for recovery. The resin in this device can also be regenerated online and reused repeatedly. This ensures that the treatment effect is not affected by operating time, and it does not generate hazardous waste or increase investment costs. This adsorption device for non-methane total hydrocarbons in coal chemical industry reduces the company's investment costs while ensuring stable production operation.

[0004] However, the above patents still have the following shortcomings: it is not convenient to replace the resin filler layer, nor is it convenient to clean the impurities filtered out by the filter screen, and it is also not convenient to replace the activated carbon adsorption layer. Therefore, we propose an adsorption device for non-methane total hydrocarbons in coal chemical industry. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an adsorption device for non-methane total hydrocarbons in coal chemical industry.

[0006] To solve the above problems, this utility model adopts the following technical solution: an adsorption device for non-methane total hydrocarbons in coal chemical industry, comprising a base, a liquid collection tank at the top of the base, a condensation mechanism at the top of the liquid collection tank, a drain valve at the side of the liquid collection tank, two resin adsorption tanks at the top of the base, second conduits fixedly connected to the top ends of the two resin adsorption tanks, first three-way electrically controlled valves fixedly connected to the ends of the two second conduits, first conduits fixedly connected to the ends of the first three-way electrically controlled valves, and the ends of the first conduits fixedly sleeved into the inner cavity of the liquid collection tanks. An induced draft fan is fixedly installed on the top surface of the base. The input end of the induced draft fan is fixedly connected to a second three-way electrically controlled valve. The two ends of the second three-way electrically controlled valve are respectively fixedly connected to third conduits. The ends of the two third conduits are respectively fixedly sleeved into the inner cavity of the resin adsorption tank. The output end of the induced draft fan is provided with a filter mechanism. The two resin adsorption tanks are provided with an air supply mechanism. The inner cavity of the two resin adsorption tanks is provided with a support mesh plate. The top surface of the two support mesh plates is provided with resin filler. The outer side of the two resin adsorption tanks is hinged with a sealing door. The outer side of the two resin adsorption tanks is provided with two plug-in seats. The sealing door is fixedly connected with a plug plate. The plug-in seats and plug plate are sleeved with pins.

[0007] As a preferred embodiment of this utility model, the filtration mechanism includes a third three-way electrically controlled valve fixedly connected to the output end of the induced draft fan. The two ends of the third three-way electrically controlled valve are respectively fixedly connected to a fourth conduit. The ends of the two fourth conduits are fixedly connected to filter boxes. An exhaust pipe is fixedly connected to each of the two filter boxes. A sealing plate is hinged to the outside of each of the two filter boxes. A filter screen is fixedly sleeved in the inner cavity of each of the two filter boxes. Multiple clamping plates are provided in the inner cavity of each of the two filter boxes. An activated carbon adsorption plate is sleeved in the inner cavity of each clamping plate.

[0008] As a preferred embodiment of this utility model, the gas supply mechanism includes a steam inlet pipe fixedly sleeved on two resin adsorption tanks. The ends of the two steam inlet pipes extend into the inner cavity of the resin adsorption tanks and are fixedly connected to a steam spray pipe. The bottom of the steam spray pipe is provided with multiple nozzles. The ends of the two steam inlet pipes are fixedly connected to a fourth three-way solenoid valve, and the end of the fourth three-way solenoid valve is fixedly connected to a steam conduit.

[0009] As a preferred embodiment of the present invention, the condensation mechanism includes a condenser disposed on the top of the liquid collection tank, a discharge pipe disposed at the bottom of the condenser, the bottom end of the discharge pipe extending into the inner cavity of the liquid collection tank, a cold medium outlet pipe disposed on the condenser, a cold medium inlet pipe disposed on the condenser, and a tail gas inlet pipe disposed on the condenser.

[0010] As a preferred embodiment of this utility model, a mounting base is fixedly connected to the top surface of the base, and a control panel is fixedly installed on the mounting base. The control panel is electrically connected to the first three-way solenoid valve, the second three-way solenoid valve, the induced draft fan, the third three-way solenoid valve, and the fourth three-way solenoid valve.

[0011] In a preferred embodiment of this utility model, the side of the filter screen is respectively attached to the inner side of the sealing plate and the inner wall of the filter box.

[0012] In a preferred embodiment of this utility model, the side of the activated carbon adsorption plate is respectively attached to the inner side of the sealing plate and the inner wall of the filter box.

[0013] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, by setting two resin adsorption tanks, the gas is intermittently introduced into the inner cavity of the resin adsorption tank by the first three-way solenoid valve and purified by the resin packing. When the gas is purified by the resin packing in the inner cavity of one resin adsorption tank, the sealing door can be opened to replace the resin packing in the inner cavity of the other resin adsorption tank, thus ensuring the function of replacing the resin packing without stopping the device.

[0014] (2) In this utility model, the gas is intermittently adsorbed and filtered by the activated carbon adsorption plate and filter screen inside the two filter boxes. When the gas is adsorbed and filtered by the activated carbon adsorption plate and filter screen inside one filter box, the sealing plate can be opened to replace the activated carbon adsorption plate and clean the dust filtered by the filter screen. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 is an exploded view of the overall structure of this utility model.

[0017] Figure 3 is a schematic diagram of the structure of the resin adsorption tank of this utility model.

[0018] Figure 4 is a cross-sectional schematic diagram of the resin adsorption tank of this utility model.

[0019] Figure 5 is a cross-sectional schematic diagram of the filtration mechanism of this utility model.

[0020] Explanation of the labels in the diagram: 1. Base; 2. Liquid collection tank; 3. Resin adsorption tank; 4. Condensation mechanism; 5. First conduit; 6. First three-way solenoid valve; 7. Second conduit; 8. Gas supply mechanism; 9. Exhaust fan; 10. Second three-way solenoid valve; 11. Third conduit; 12. Sealing door; 13. Support mesh plate; 14. Resin filler; 15. Connector; 16. Connector plate; 17. Pin; 18. Third three-way solenoid valve; 19. Fourth conduit; 2 0. Filter box; 21. Exhaust pipe; 22. Sealing plate; 23. Filter screen; 24. Clamping plate; 25. Activated carbon adsorption plate; 26. Filter mechanism; 27. Drain valve; 28. Mounting base; 29. ​​Control panel; 30. Condenser; 31. Exhaust gas inlet pipe; 32. Cold medium inlet pipe; 33. Discharge pipe; 34. Cold medium outlet pipe; 35. Steam inlet pipe; 36. Fourth three-way electric control valve; 37. Steam conduit pipe; 38. Steam nozzle; 39. Nozzle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0024] As shown in Figures 1 to 5, an adsorption device for non-methane total hydrocarbons in coal chemical industry includes a base 1. A liquid collection tank 2 is installed on the top of the base 1, and a condensation mechanism 4 is installed on the top of the liquid collection tank 2. A drain valve 27 is installed on the side of the liquid collection tank 2 to discharge waste liquid from the inner cavity of the liquid collection tank 2. Two resin adsorption tanks 3 are installed on the top of the base 1. The top ends of the two resin adsorption tanks 3 are respectively fixedly connected to second conduits 7. The ends of the two second conduits 7 are fixedly connected to first three-way solenoid valves 6. The ends of the first three-way solenoid valves 6 are fixedly connected to first conduits 5. The ends of the first conduits 5 are fixedly sleeved into the inner cavity of the liquid collection tank 2. An induced draft fan 9 is fixedly installed on the top surface of the base 1. The input end of the induced draft fan 9 is fixedly connected to a second three-way solenoid valve 10. The two ends of the second three-way solenoid valve 10 are respectively fixedly connected to third conduits 11. The ends of the two resin adsorption tanks 3 are fixedly sleeved to the inner cavity of the resin adsorption tank 3. The output end of the blower 9 is provided with a filter mechanism 26. The two resin adsorption tanks 3 are provided with an air supply mechanism 8. The inner cavity of the two resin adsorption tanks 3 is provided with a support mesh plate 13. The top surface of the two support mesh plates 13 is provided with resin filler 14. The outer side of the two resin adsorption tanks 3 is hinged with a sealing door 12. The outer side of the two resin adsorption tanks 3 is provided with two plug-in seats 15. The sealing door 12 is fixedly connected with a plug-in plate 16. The plug-in seat 15 and the plug-in plate 16 are sleeved with pins 17. The plug-in seat 15 and the plug-in plate 16 are provided with plug holes that are compatible with the pins 17, so that the pins 17 can connect the plug-in seat 15 and the plug-in plate 16. Example 2

[0025] Based on Embodiment 1, as shown in Figures 1, 2, and 5, the filtration mechanism 26 includes a third three-way electrically controlled valve 18 fixedly connected to the output end of the induced draft fan 9. Fourth conduits 19 are fixedly connected to both ends of the third three-way electrically controlled valve 18. Filter boxes 20 are fixedly connected to the ends of the two fourth conduits 19. Exhaust pipes 21 are fixedly connected to both filter boxes 20. Sealing plates 22 are hinged to the outer sides of both filter boxes 20. Filter screens 23 are fixedly fitted into the inner cavities of both filter boxes 20. Multiple retaining plates 24 are provided within the inner cavities of both filter boxes 20. Activated carbon adsorption plates 25 are fitted into the inner cavities of the retaining plates 24. The sides of the filter screens 23 are respectively attached to the inner sides of the sealing plates 22 and the inner walls of the filter boxes 20, ensuring that the filter screens 23 can filter the gas dust entering the inner cavity of the filter boxes 20. The sides of the activated carbon adsorption plates 25 are respectively attached to the inner sides of the sealing plates 22 and the inner walls of the filter boxes 20. The inner walls are closely fitted to ensure that the activated carbon adsorption plate 25 can adsorb odors in the gas entering the inner cavity of the filter box 20. Example 3

[0026] Based on Embodiments 1 and 2, as shown in Figures 1 to 4, the gas supply mechanism 8 includes steam inlet pipes 35 fixedly sleeved on two resin adsorption tanks 3. The ends of the two steam inlet pipes 35 extend into the inner cavity of the resin adsorption tank 3 and are fixedly connected to steam nozzles 38. Multiple nozzles 39 are provided at the bottom of the steam nozzles 38. A fourth three-way solenoid valve 36 is fixedly connected to the ends of the two steam inlet pipes 35. A steam conduit 37 is fixedly connected to the end of the fourth three-way solenoid valve 36. The end of the steam conduit 37 is connected to an external steam supply point. This is prior art. The condensation mechanism 4 includes a condenser 30 disposed on the top of the liquid collection tank 2. A discharge pipe 33 is provided at the bottom of the condenser 30. The bottom end of the discharge pipe 33 extends into the inner cavity of the liquid collection tank 2. A cold medium outlet pipe 34, a cold medium inlet pipe 32, and a tail gas inlet pipe 31 are provided on the condenser 30. The base 1 A mounting base 28 is fixedly connected to the top surface of the device, and a control panel 29 is fixedly mounted on the mounting base 28. The control panel 29 is electrically connected to the first three-way solenoid valve 6, the second three-way solenoid valve 10, the induced draft fan 9, the third three-way solenoid valve 18, and the fourth three-way solenoid valve 36, respectively. The control panel 29 is used to control the first three-way solenoid valve 6, the second three-way solenoid valve 10, the induced draft fan 9, the third three-way solenoid valve 18, and the fourth three-way solenoid valve 36, and the power supply of the external device is used to supply power to the control panel 29, the first three-way solenoid valve 6, the second three-way solenoid valve 10, the induced draft fan 9, the third three-way solenoid valve 18, and the fourth three-way solenoid valve 36. This is the prior art.

[0027] It should be noted that this utility model is an adsorption device for non-methane total hydrocarbons in coal chemical industry. In use, the tail gas is first introduced into the condenser 30 through the tail gas inlet pipe 31. A cooling medium is circulated into the condenser 30 through the cooling medium inlet pipe 32 to cool the tail gas to -15 degrees Celsius. The cooled tail gas and the liquefied portion then enter the inner cavity of the liquid collection tank 2. The gas then enters the inner cavity of a resin adsorption tank 3 through the first conduit 5, the first three-way solenoid valve 6, and the second conduit 7. Simultaneously, the induced draft fan 9 is turned on to draw gas into the inner cavity of the resin adsorption tank 3 through the second three-way solenoid valve 10 and the third conduit 11. At the same time, steam is introduced into the inner cavity of the resin adsorption tank 3 using the steam conduit 37, the fourth three-way solenoid valve 36, the steam inlet pipe 35, the steam nozzle 38, and the nozzle 39. This, combined with the resin packing 14, purifies and adsorbs the gas. The adsorbed gas exits through the third three-way solenoid valve 18 and the fourth conduit 19. The gas is introduced into the inner cavity of a filter box 20, where dust is filtered by the filter screen 23 and odors are adsorbed by the activated carbon adsorption plate 25. Then, the first three-way solenoid valve 6, the second three-way solenoid valve 10, and the fourth three-way solenoid valve 36 are adjusted periodically to allow the gas to enter another resin adsorption tank 3. The resin packing 14 in the inner cavity of this other resin adsorption tank 3 purifies and adsorbs the gas, allowing steam to enter the inner cavity of the other resin adsorption tank 3, and the purified gas to enter the inner cavity of another filter box 20. Finally, the pin 17 on the side of the first resin adsorption tank 3 is removed, opening the sealing door 12 to replace the resin packing 14 in the inner cavity of the resin adsorption tank 3. The sealing plate 22 on the side of the first filter box 20 is also opened to replace the activated carbon adsorption plate 25, and the filter screen 23 is adjusted accordingly. The filtered dust is processed to ensure continuous adsorption of the gas. The resin filler 14 and activated carbon adsorption plate 25 can be replaced during the operation of the device, and the dust filtered by the filter screen 23 can be processed.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An adsorption device for non-methane total hydrocarbons in coal chemical industry, comprising a base (1), characterized in that: A liquid collection tank (2) is provided on the top of the base (1), and a condensation mechanism (4) is provided on the top of the liquid collection tank (2). A drain valve (27) is provided on the side of the liquid collection tank (2). Two resin adsorption tanks (3) are provided on the top of the base (1). The top ends of the two resin adsorption tanks (3) are respectively fixedly connected to second conduits (7). The ends of the two second conduits (7) are fixedly connected to first three-way solenoid valves (6). The ends of the first three-way solenoid valves (6) are fixedly connected to first conduits (5). The ends of the first conduits (5) are fixedly sleeved into the inner cavity of the liquid collection tank (2). A blower (9) is fixedly installed on the top surface of the base (1). The input end of the blower (9) is fixedly connected to a second three-way solenoid valve (10). The two ends of the control valve (10) are respectively fixedly connected to the third conduit (11), and the ends of the two third conduits (11) are respectively fixedly sleeved to the inner cavity of the resin adsorption tank (3). The output end of the blower (9) is provided with a filter mechanism (26). The two resin adsorption tanks (3) are provided with an air supply mechanism (8). The inner cavity of the two resin adsorption tanks (3) is provided with a support mesh plate (13). The top surface of the two support mesh plates (13) is provided with resin filler (14). The outer side of the two resin adsorption tanks (3) is hinged with a sealing door (12). The outer side of the two resin adsorption tanks (3) is provided with two plug-in seats (15). The sealing door (12) is fixedly connected with a plug plate (16). The plug-in seat (15) and the plug plate (16) are sleeved with a pin (17).

2. The adsorption device for non-methane total hydrocarbons in coal chemical industry according to claim 1, characterized in that: The filtration mechanism (26) includes a third three-way electrically controlled valve (18) fixedly connected to the output end of the induced draft fan (9). The two ends of the third three-way electrically controlled valve (18) are respectively fixedly connected to a fourth conduit (19). The ends of the two fourth conduits (19) are fixedly connected to a filter box (20). The two filter boxes (20) are each fixedly connected to an exhaust pipe (21). The outer sides of the two filter boxes (20) are each hinged with a sealing plate (22). The inner cavities of the two filter boxes (20) are each fixedly fitted with a filter screen (23). The inner cavities of the two filter boxes (20) are each provided with multiple clamping plates (24). The inner cavities of the clamping plates (24) are fitted with activated carbon adsorption plates (25).

3. The adsorption device for non-methane total hydrocarbons in coal chemical industry according to claim 2, characterized in that: The gas supply mechanism (8) includes a steam inlet pipe (35) fixedly sleeved on two resin adsorption tanks (3). The ends of the two steam inlet pipes (35) extend into the inner cavity of the resin adsorption tank (3) and are fixedly connected to a steam nozzle (38). The bottom of the steam nozzle (38) is provided with multiple nozzles (39). The ends of the two steam inlet pipes (35) are fixedly connected to a fourth three-way solenoid valve (36). The end of the fourth three-way solenoid valve (36) is fixedly connected to a steam conduit (37).

4. The adsorption device for non-methane total hydrocarbons in coal chemical industry according to claim 1, characterized in that: The condensation mechanism (4) includes a condenser (30) disposed on the top of the liquid collection tank (2), a discharge pipe (33) disposed at the bottom of the condenser (30), the bottom end of the discharge pipe (33) extending into the inner cavity of the liquid collection tank (2), a cold medium outlet pipe (34) disposed on the condenser (30), a cold medium inlet pipe (32) disposed on the condenser (30), and a tail gas inlet pipe (31) disposed on the condenser (30).

5. The adsorption device for non-methane total hydrocarbons in coal chemical industry according to claim 3, characterized in that: The top surface of the base (1) is fixedly connected to the mounting base (28), and the mounting base (28) is fixedly installed with the control panel (29). The control panel (29) is electrically connected to the first three-way solenoid valve (6), the second three-way solenoid valve (10), the induced draft fan (9), the third three-way solenoid valve (18), and the fourth three-way solenoid valve (36).

6. The adsorption device for non-methane total hydrocarbons in coal chemical industry according to claim 2, characterized in that: The side of the filter screen (23) is respectively attached to the inner side of the sealing plate (22) and the inner wall of the filter box (20).

7. The adsorption device for non-methane total hydrocarbons in coal chemical industry according to claim 2, characterized in that: The side of the activated carbon adsorption plate (25) is in contact with the inner side of the sealing plate (22) and the inner wall of the filter box (20), respectively.

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