Efficient coke oven gas filter

Abstract

The utility model relates to the technical field of gas filtration, and discloses an efficient coke oven gas filter which comprises a treatment tank, a gas inlet is formed in one side penetrating through the treatment tank, and one end, extending into the treatment tank, of the gas inlet is connected with an atomization absorption assembly. A circulating water channel opening matched with the atomization absorption assembly is formed in the position, located above the atomization absorption assembly, in the treatment tank, and a plurality of microfiltration membrane assemblies are arranged in the position, located above the circulating water channel opening, in the treatment tank; by means of the micro-filtration membrane assembly, the atomization absorption assembly, the circulating water channel opening, the first spraying water channel opening, a circulating liquid outlet, a second electromagnetic valve, a first backflow pipe and a second backflow pipe, impurities in coke oven gas can be efficiently captured, efficient regeneration is facilitated, the capturing capacity of the coke oven gas can be rapidly recovered, multiple times of adsorption can be conveniently conducted on the coke oven gas, the gas filtering effect is conveniently improved, and the coke oven gas quality is improved. The disqualification probability of gas is reduced, and the use functionality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas filter technical field, concretely is a kind of efficient coke oven gas filter. BACKGROUND

[0002] Low-pressure coke oven gas containing tar, naphthalene, dust and other impurities from gas cabinet, after entering compressor cylinder, it can cause coking, and can block pipeline, heat exchanger and other equipment, cause system shutdown, produce high repair cost, to solve this problem, most coke oven gas discharges, usually install gas purification device with dust removal, tar removal, equipment plugging prevention on low-pressure main pipeline, to improve the cleanliness of gas.

[0003] Chinese patent provides a coke oven gas purification filter, and the publication number is CN220951689U, including upper head, shell, its characterized in that upper head top is equipped with gas outlet, lower head bottom is equipped with liquid discharge port, shell lower part is equipped with gas inlet, shell one side is equipped with charging port, and the other side is equipped with discharge port.

[0004] The above-mentioned device has simple structure, low energy consumption, adopts multi-layer filter layer structure, can ensure filtering effect, and avoid secondary escape pollution problem caused by coke pulverization at the same time;

[0005] But it is directly adsorbed and filtered by multiple filtering, but the gas without pretreatment has more impurities, and subsequent cleaning and maintenance is more complicated, and the gas is directly discharged after multiple filtering, difficult to be recycled, which may cause unqualified gas to enter next step, and the processing function is low. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of efficient coke oven gas filter, can effectively solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A kind of efficient coke oven gas filter, including treatment tank, gas inlet is arranged in one side of the treatment tank, and the gas inlet end connected with atomization absorption assembly is stretched into treatment tank, and the inside of the treatment tank and above atomization absorption assembly are installed with the circulation waterway port matched with atomization absorption assembly;

[0009] Several microfiltration membrane modules are installed inside the treatment tank and above the circulating water inlet. Spray water inlet one and spray water inlet two are installed inside the treatment tank and above the microfiltration membrane modules. A drain outlet is connected to the center of the bottom of the treatment tank. An automatic level gauge interface is installed on one side of the bottom of the treatment tank. A local level gauge interface is installed on one side of the treatment tank near the gas inlet. An inspection port two is installed on one side of the treatment tank between spray water inlet two and spray water inlet one.

[0010] Preferably, the bottom end of the atomizing absorption component and the side away from the self-controlled liquid level gauge interface are connected to a circulating liquid outlet that is compatible with the circulating water outlet, and a self-controlled solenoid valve is provided at the connection between the drain outlet, the circulating liquid outlet and the treatment tank.

[0011] Preferably, the microfiltration membrane assembly is made of stainless steel fiber sintered felt, with the fiber contact points sintered together, and the pore size of the microfiltration membrane assembly has a gradient structure.

[0012] Preferably, a new water pipe is provided inside the treatment tank and above the second spray water outlet, and a high-efficiency blade separation assembly is provided inside the treatment tank and above the new water pipe.

[0013] Preferably, the lower part of the high-efficiency blade separation assembly is provided with a manifold box, and the manifold box is connected to the lower part of the treatment tank through a guide pipe.

[0014] Preferably, an inspection port is provided on one side of the treatment tank and on the side of the high-efficiency blade separation assembly, a partition is fixedly connected to the upper part of the interior of the treatment tank, and a solenoid valve is provided in the center of the partition.

[0015] Preferably, a return pipe 1 is provided at an upper position on one side of the treatment tank, and the return pipe 1 is located between the baffle and the high-efficiency blade separation assembly. A return pipe 2, which is adapted to the return pipe 1, is provided at a lower position on one side of the treatment tank, and the ends of the return pipe 1 and the return pipe 2 away from the treatment tank are respectively connected to the air inlet and air outlet of the external circulation pump.

[0016] Preferably, a gas outlet is provided at the center of the top of the treatment tank, and a vent is provided at one side of the top of the treatment tank.

[0017] Preferably, the atomizing absorption assembly consists of a floating valve tray absorption and distribution unit and an atomizing absorption device.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention utilizes a combination of a microfiltration membrane assembly, an atomizing absorption assembly, a circulating water inlet, and a spray water inlet to efficiently capture impurities in coke oven gas. The microfiltration membrane assembly is resistant to corrosion from impurities such as tar, light hydrocarbons, sulfides, cyanides, benzene, and naphthalene. Furthermore, the cleaning agent sprayed from spray water inlets one and two facilitates efficient regeneration and rapid restoration of its collection capacity.

[0020] By setting up a drain outlet and a self-controlled liquid level gauge interface in conjunction with the treatment tank, waste liquid can be discharged to the outside for subsequent wastewater treatment. Furthermore, through the coordinated operation of the two solenoid valves, one return pipe and two return pipes, the gas can be transferred to perform multiple adsorption processes, thereby improving the gas filtration effect, reducing the probability of gas failure, and enhancing the functionality of the product. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency coke oven gas filter according to an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the internal structure of the processing tank in an embodiment of this utility model;

[0023] Figure 3 This is a cross-sectional view of the lower structure of the processing tank in an embodiment of this utility model;

[0024] Figure 4 This is a cross-sectional view of the upper structure of the processing tank in an embodiment of this utility model.

[0025] In the diagram: 1. Treatment tank; 2. Gas inlet; 3. Atomizing absorption assembly; 4. Circulating water inlet; 5. On-site level gauge interface; 6. Sewage outlet; 7. Automatic level gauge interface; 8. Circulating liquid outlet; 9. Automatic solenoid valve one; 10. Microfiltration membrane assembly; 11. Spray water inlet one; 12. Spray water inlet two; 13. New water pipe; 14. Inspection port one; 15. Inspection port two; 16. Return pipe one; 17. Return pipe two; 18. High-efficiency blade separation assembly; 19. Solenoid valve two; 20. Vent port; 21. Gas outlet. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] CombinationFigures 1-4 A high-efficiency coke oven gas filter includes a treatment tank 1, a gas inlet 2 is provided through one side of the treatment tank 1, and an atomizing absorption component 3 is connected to one end of the gas inlet 2 that extends into the treatment tank 1. A circulating water channel 4 that matches the atomizing absorption component 3 is installed inside the treatment tank 1 and above the atomizing absorption component 3.

[0029] See Figure 2 and Figure 3 Furthermore, several microfiltration membrane modules 10 are installed inside the treatment tank 1 and above the circulating water inlet 4. Spray water inlet 11 and spray water inlet 12 are installed inside the treatment tank 1 and above the microfiltration membrane modules 10. A drain outlet 6 is connected to the bottom of the treatment tank 1 at its center. A self-controlled level gauge interface 7 is installed on one side of the bottom of the treatment tank 1. A local level gauge interface 5 is installed on one side of the treatment tank 1 near the gas inlet 2. On one side of 1, between spray water outlet 2 12 and spray water outlet 11, there is an inspection port 2 15. The bottom end of the atomizing absorption component 3 and the side away from the self-controlled liquid level gauge interface 7 are connected to a circulating liquid outlet 8 that is compatible with the circulating water outlet 4. The connection between the drain outlet 6, the circulating liquid outlet 8 and the treatment tank 1 is provided with a self-controlled solenoid valve 1 9. The microfiltration membrane component 10 is made of stainless steel fiber sintered felt, and the fiber contact points are sintered together. The pore size of the microfiltration membrane component 10 has a gradient structure.

[0030] Specifically, through the gas inlet 2, the coke oven gas to be treated can be transported to the treatment tank 1. The atomizing absorption component 3 is installed at the gas inlet 2 to filter and absorb impurities such as dust, tar, benzene, and naphthalene carried in the gas. The gas then enters the microfiltration membrane component 10, where it captures and adsorbs tar, dust, and naphthalene. The gas then proceeds to the high-efficiency blade separation component 18. When the collection efficiency at the microfiltration membrane component 10 decreases, water can be discharged above the microfiltration membrane component 10 through spray water outlets 11 and 12, which have anti-fouling properties. A specific cleaning agent is made by adding additives with multiple functions such as oxygenation, corrosion resistance, extrusion wear resistance, decondensation, rust prevention, and defoaming to clean the microfiltration membrane module 10. Subsequently, a small amount of cleaning water flows into the interior of the treatment tank 1. When the self-controlled liquid level gauge interface 7 detects that the liquid level has reached the preset value, it opens the control drain port 6 to discharge sewage. The circulating liquid outlet 8 is installed below the treatment tank 1, and the circulating water channel 4 is installed above the atomizing absorption component 3. During use, the circulating water channel 4 and the circulating liquid outlet 8 can form a circulation to wash the atomizing absorption component 3.

[0031] Example 2

[0032] See Figure 2 and Figure 4Furthermore, based on Embodiment 1, a new water pipe 13 is installed inside the treatment tank 1 and above the second spray water outlet 12. A high-efficiency blade separation assembly 18 is installed inside the treatment tank 1 and above the new water pipe 13. A manifold box is installed at the lower part of the high-efficiency blade separation assembly 18, and the manifold box is connected to the lower part of the treatment tank 1 through a guide pipe. An inspection port 14 is installed on one side of the treatment tank 1 and on the side of the high-efficiency blade separation assembly 18. A partition is fixedly connected to the upper part of the inside of the treatment tank 1, and a solenoid valve 19 is installed in the center of the partition. A return pipe 16 is installed on one side of the upper part of the treatment tank 1, and the return pipe 16 is located between the baffle and the high-efficiency blade separation assembly 18. A return pipe 27, which is compatible with the return pipe 16, is installed on one side of the treatment tank 1. The ends of the return pipe 16 and the return pipe 27 away from the treatment tank 1 are respectively connected to the air inlet and air outlet of the external circulation pump. A gas outlet 21 is installed at the center of the top of the treatment tank 1. A vent 20 is installed on one side of the top of the treatment tank 1. The atomizing absorption assembly 3 consists of a floating valve tray absorption and gas distribution unit and an atomizing absorption device.

[0033] Specifically, the high-efficiency blade separation component 18 can cause a change in the direction of fluid flow, causing droplets with greater inertia to collide with the blade walls inside the high-efficiency blade separation component 18. The droplets adhere to the blade surface, forming a liquid film. The bend formed by the blades prevents the escape of small droplets, promoting the separation and aggregation of the liquid phase. After the liquid flows through the confluence, it flows directly into the lower part of the treatment tank 1 to avoid re-contact with the gas. The gas treated by the high-efficiency blade separation component 18 will enter below the solenoid valve 19. At this time, the gas inlet 2 and the solenoid valve 19 can be opened to discharge the treated gas. Alternatively, the solenoid valve 19 can be closed as needed, and the return pipe 16 and the return pipe 17 can be opened. The gas can be circulated and transferred through the return pipe 16 and the return pipe 17 so that it can re-enter the microfiltration membrane component 10 and the high-efficiency blade separation component 18 for treatment to improve the filtration effect.

[0034] In actual operation, the coke oven gas to be treated can be transported to the treatment tank 1 through the gas inlet 2. The atomizing absorption component 3 is installed at the gas inlet 2 and can filter and absorb impurities such as dust, tar, benzene and naphthalene carried in the gas. Then the gas enters the microfiltration membrane component 10. The microfiltration membrane component 10 can capture and adsorb tar, dust and naphthalene. Then the gas goes to the high-efficiency blade separation component 18.

[0035] When the collection efficiency of the microfiltration membrane module 10 decreases, a specific cleaning agent with multiple functions such as anti-oxidation, anti-corrosion, extrusion wear resistance, decoction, rust prevention, and defoaming can be discharged above the microfiltration membrane module 10 through spray water outlet 11 and spray water outlet 2 12 to clean the microfiltration membrane module 10. Subsequently, a small amount of cleaning water flows into the interior of the treatment tank 1.

[0036] When the self-controlled liquid level gauge interface 7 detects that the liquid level has reached the preset value, it will open the control drain port 6 to discharge sewage. The circulating liquid outlet 8 is installed below the treatment tank 1, and the circulating water channel 4 is installed above the atomizing absorption component 3. During use, the circulating water channel 4 and the circulating liquid outlet 8 can form a circulation to wash the atomizing absorption component 3.

[0037] The high-efficiency blade separation component 18 can cause a change in the direction of fluid flow, causing droplets with greater inertia to collide with the blade wall inside the high-efficiency blade separation component 18. The droplets adhere to the blade surface, forming a liquid film. Furthermore, the bend formed by the blades can prevent the escape of small droplets, promoting the separation and polymerization of the liquid phase.

[0038] Afterwards, the liquid flows directly into the lower part of the treatment tank 1 after confluence to avoid re-contact with the gas. The gas treated by the high-efficiency blade separation component 18 will enter below the solenoid valve 19. At this time, the gas inlet 2 and the solenoid valve 19 can be opened to discharge the treated gas. Alternatively, the solenoid valve 19 can be closed as needed, and the return pipe 16 and the return pipe 17 can be opened. The gas can be circulated and transferred through the return pipe 16 and the return pipe 17 so that it can re-enter the microfiltration membrane component 10 and the high-efficiency blade separation component 18 for treatment to improve the filtration effect.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high efficiency coke oven gas filter comprising a treatment tank (1) provided with a gas inlet (2) through one side of said treatment tank (1), characterized in that: The gas inlet (2) is connected with the atomizing absorption assembly (3) at one end extending into the treatment tank (1), and the circulating waterway opening (4) matched with the atomizing absorption assembly (3) is installed above the atomizing absorption assembly (3) in the treatment tank (1). A plurality of microfiltration membrane assemblies (10) are arranged above the circulating waterway opening (4) in the treatment tank (1), and the spray waterway opening one (11) and the spray waterway opening two (12) are arranged above the microfiltration membrane assemblies (10) in the treatment tank (1), the blowdown opening (6) is connected through the central position of the bottom end of the treatment tank (1), the automatic liquid level meter interface (7) is arranged at the side of the bottom end of the treatment tank (1), the field liquid level meter interface (5) is arranged at the side of the treatment tank (1) near the lower position of the gas inlet (2), and the maintenance opening two (15) is arranged at the side of the treatment tank (1) between the spray waterway opening two (12) and the spray waterway opening one (11).

2. A high efficiency coke oven gas filter according to claim 1, characterized in that: The bottom end of the atomizing absorption assembly (3) is connected with the circulating liquid outlet (8) matched with the circulating waterway opening (4) at the side away from the automatic liquid level meter interface (7), and the automatic electromagnetic valve one (9) is arranged at the connection position of the blowdown opening (6), the circulating liquid outlet (8) and the treatment tank (1).

3. A high efficiency coke oven gas filter according to claim 1, characterized in that: The microfiltration membrane assembly (10) is arranged with a stainless steel fiber sintered felt, the fiber contact points are sintered together, and the inner hole diameter of the microfiltration membrane assembly (10) has a gradient structure.

4. A high efficiency coke oven gas filter according to claim 1, characterized in that: The new water pipe (13) is arranged above the spray waterway opening two (12) in the treatment tank (1), and the high-efficiency blade separation assembly (18) is arranged above the new water pipe (13) in the treatment tank (1).

5. A high efficiency coke oven gas filter according to claim 4, characterized in that: The lower part of the high-efficiency blade separation assembly (18) is provided with a flow collection box connected with the lower part of the treatment tank (1) through a flow guide pipe.

6. A high efficiency coke oven gas filter according to claim 4, characterized in that: The maintenance opening one (14) is arranged at the side of the treatment tank (1) at the side of the high-efficiency blade separation assembly (18), the partition plate is fixedly connected to the upper position in the treatment tank (1), and the electromagnetic valve two (19) is arranged at the central position of the partition plate.

7. A high efficiency coke oven gas filter according to claim 1, characterized in that: The reflux pipe one (16) is arranged at the upper position of the side of the treatment tank (1) between the partition plate and the high-efficiency blade separation assembly (18), and the reflux pipe two (17) matched with the reflux pipe one (16) is arranged at the lower position of the side of the treatment tank (1), and the one ends of the reflux pipe one (16) and the reflux pipe two (17) away from the treatment tank (1) are respectively connected with the inlet and outlet of the external circulating pump.

8. A high efficiency coke oven gas filter according to claim 7, characterized in that: The gas outlet (21) is arranged at the central position of the top end of the treatment tank (1), and the vent opening (20) is arranged at the side of the top end of the treatment tank (1).

9. A high efficiency coke oven gas filter according to claim 1, characterized in that: The atomizing absorption assembly (3) is composed of a float valve tray absorption gas distribution unit and an atomizing absorption device.

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