Efficient filtering device for purifying coke oven gas

Abstract

The utility model relates to the technical field of purification equipment, in particular to an efficient filter device for coke oven gas purification, which comprises a primary filter tank and a spray purification tower for coke oven gas purification, the primary filter tank is communicated with the spray purification tower through a delivery pipe, and the bottom of the spray purification tower is connected with a liquid medicine pool. According to the utility model, a multi-layer filtering system is formed through the arrangement of the primary filtering box, and the stainless steel wire mesh, the coarse filtering layer and the fine filtering layer which are sequentially mounted in the primary filtering box from left to right. The stainless steel screen can preliminarily intercept large-particle impurities in gas, the coarse filter layer can further remove medium-size particles, the fine filter layer can finely filter out small particles in the gas, and therefore the preliminary purification effect of coke oven gas is ensured, the atomization nozzles at the bottom of the transverse pipe can atomize liquid medicine to make full contact with the coke oven gas, and the gas purification effect is improved. Therefore, harmful gas and residual impurities in the coal gas are effectively removed.

Description

Technical Field

[0001] The utility model relates to the technical field of purification equipment, in particular to a high-efficiency filtering device for purifying coke oven gas. Background Art

[0002] With the rapid development of modern industry, coke oven gas production is increasing. As a vital energy source and chemical raw material, it plays an irreplaceable role in the steel, chemical, and other industries. However, coke oven gas contains large amounts of harmful substances such as dust, tar, and sulfides. Direct discharge or use of coke oven gas not only causes serious environmental pollution but also affects the normal operation of equipment and product quality. Therefore, the purification of coke oven gas is extremely important. Traditional coke oven gas filtration devices have shortcomings in terms of filtration effectiveness and operational efficiency. First, traditional filtration devices often use a single filter material, such as activated carbon or cloth bags. These materials are prone to clogging during the filtration process, resulting in reduced filtration efficiency and requiring frequent replacement, increasing maintenance costs. Second, traditional filtration devices cannot effectively remove harmful substances from the gas during the filtration process, especially for small particles and harmful gases, where removal efficiency is unsatisfactory. Furthermore, traditional filtration devices often suffer from high system resistance and high energy consumption during design and operation, affecting the efficiency and economic benefits of the entire purification system. Utility Model Content

[0003] The purpose of the utility model is to provide a high-efficiency filtering device for purifying coke oven gas, so as to solve the problem that the coke oven gas filtering device mentioned in the background art has defects in filtering effect and operating efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A high-efficiency filtering device for coke oven gas purification comprises a primary filter box and a spray purification tower for coke oven gas purification, wherein the primary filter box and the spray purification tower are connected via a delivery pipe, and a liquid medicine pool is connected to the bottom of the spray purification tower;

[0006] The primary filter box is provided with a stainless steel wire mesh, a coarse filter layer and a fine filter layer from left to right. A pull-out plate is installed on one side of the bottom of the primary filter box, and a dust hopper is installed at the bottom of the pull plate.

[0007] A vertically arranged infusion pipe is installed on the outer wall of one side of the spray purification tower, and several groups of parallel horizontal pipes are installed on the outer wall of the infusion pipe. The horizontal pipes are inserted into the interior of the spray purification tower, and several evenly and equidistantly arranged atomizing nozzles are installed at the bottom of the horizontal pipes.

[0008] Preferably, both ends of the bottom of the primary filter box are symmetrically arranged on the columns.

[0009] Preferably, the bottom of the column and the bottom of the liquid medicine pool are located at the same height, and universal wheels are installed at the four top corners of the bottom of the column and the bottom of the liquid medicine pool.

[0010] Preferably, the coarse filter layer is filled with ceramic filter material with a diameter of 5-7 mm, and the fine filter layer is filled with activated carbon with a diameter of 0.6-1.5 mm.

[0011] Preferably, observation windows are installed on the outer wall of the spray purification tower, the number of which is the same as that of the horizontal pipes and the positions of which are corresponding.

[0012] Preferably, a liquid inlet for adding spray liquid is provided on the top of the liquid medicine pool, and a drain pipe with a sealing plug for discharging waste liquid is connected to the bottom of one side of the liquid medicine pool.

[0013] Preferably, an infusion pump is installed at the bottom of the medicine liquid pool, and the liquid outlet end of the infusion pump is connected to the infusion tube.

[0014] Preferably, a liquid baffle for isolating the liquid medicine is installed in the liquid medicine pool.

[0015] Compared with the existing technology, the beneficial effects of the present invention are:

[0016] This high-efficiency filtration device for coke oven gas purification features a primary filter box with a stainless steel mesh, coarse filter layer, and fine filter layer installed from left to right, forming a multi-layered filtration system. The stainless steel mesh initially intercepts large impurities in the gas, the coarse filter layer further removes medium-sized particles, and the fine filter layer finely filters out fine particles, ensuring initial purification of the coke oven gas. A pull-out panel and dust hopper at the bottom of the primary filter box allow dust and impurities collected during the filtration process to be easily removed by pulling out the panel. This design not only improves cleaning efficiency but also reduces maintenance costs. A combination of an infusion pipe and a cross pipe evenly delivers the purified liquid from the chemical tank to the spray purification tower. A misting nozzle at the bottom of the cross pipe atomizes the liquid, ensuring full contact with the coke oven gas, effectively removing harmful gases and residual impurities.

[0017] In the high-efficiency filtering device for coke oven gas purification, universal wheels are installed at the bottom of the column and the four top corners of the bottom of the liquid medicine pool to enhance the mobility of the device, so that the device can be easily adjusted or carried as needed.

[0018] In this high-efficiency filtration device for coke oven gas purification, observation windows are installed on the outer wall of the spray purification tower, with the same number and corresponding positions as the horizontal pipes, so that the staff can observe the working conditions inside the spray purification tower, such as the spraying of chemical liquid and the flow of gas, so as to discover and solve problems in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they provide further detailed explanations, but do not constitute a limitation to the present invention.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the primary filter box of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the spray purification tower and liquid medicine pool of the utility model.

[0023] The meaning of the symbols in the figure:

[0024] 10. Primary filter box; 11. Column; 12. Dust hopper; 13. Stainless steel wire mesh; 14. Coarse filter layer; 15. Fine filter layer; 16. Universal wheel; 17. Pull plate;

[0025] 20. Delivery pipe;

[0026] 30. Spray purification tower; 31. Observation window; 32. Infusion tube; 33. Horizontal pipe; 34. Atomizing nozzle;

[0027] 40. Medicine liquid tank; 41. Liquid inlet; 42. Liquid discharge tube; 43. Infusion pump; 44. Liquid baffle. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention and the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] A high efficiency filter device for coke oven gas purification, such as Figure 1-Figure 3 As shown, it includes a primary filter box 10 and a spray purification tower 30 for coke oven gas purification. The primary filter box 10 and the spray purification tower 30 are connected by a delivery pipe 20, and the bottom of the spray purification tower 30 is connected to a liquid medicine pool 40; a stainless steel wire mesh 13, a coarse filter layer 14 and a fine filter layer 15 are arranged in sequence from left to right in the primary filter box 10, and a pull-out pull plate 17 is installed on one side of the bottom of the primary filter box 10, and a dust collecting hopper 12 is installed at the bottom of the pull plate 17; a vertically arranged infusion pipe 32 is installed on the outer wall of one side of the spray purification tower 30, and a plurality of groups of parallel horizontal pipes 33 are installed on the outer wall of the infusion pipe 32, and the horizontal pipe 33 is inserted into the interior of the spray purification tower 30, and a plurality of evenly and equidistantly arranged atomizing nozzles 34 are installed at the bottom of the horizontal pipe 33. Through the primary filter box 10, the stainless steel wire mesh 13, the coarse filter layer 14 and the fine filter layer 15 installed in sequence from left to right inside form a multi-level filtration system. The stainless steel wire mesh 13 can initially intercept large particles of impurities in the coal gas, the coarse filter layer 14 further removes medium-sized particles, and the fine filter layer 15 can finely filter out tiny particles in the coal gas, thereby ensuring the initial purification effect of the coke oven gas. The combined design of the pull-out pull plate 17 and the dust hopper 12 installed at the bottom of the primary filter box 10 allows the dust and impurities collected during the filtration process to be easily cleaned by pulling out the pull plate 17. This design not only improves the cleaning efficiency, but also reduces maintenance costs. Through the combination of the infusion pipe 32 and the cross pipe 33, the purified liquid in the liquid pool 40 is evenly transported to the inside of the spray purification tower 30. The atomizing nozzle 34 at the bottom of the cross pipe 33 can atomize the liquid medicine and fully contact it with the coke oven gas, thereby effectively removing harmful gases and residual impurities in the gas.

[0031] Furthermore, the two ends of the bottom of the primary filter box 10 are symmetrically arranged on the column 11, the bottom of the column 11 and the bottom of the liquid medicine pool 40 are at the same height, and universal wheels 16 are installed at the four top corners of the bottom of the column 11 and the bottom of the liquid medicine pool 40 to enhance the mobility of the device so that the device can be easily adjusted or transported as needed.

[0032] Among them, the coarse filter layer 14 is filled with ceramic filter material with a diameter of 5-7 mm, which has good filtering effect and corrosion resistance, and can effectively remove medium-sized particles in the coal gas. The fine filter layer 15 is filled with 0.6-1.5 mm activated carbon. Activated carbon has a strong adsorption capacity and can remove tiny particles and harmful gases in the coal gas, further improving the purification effect.

[0033] It is worth noting that observation windows 31 are installed on the outer wall of the spray purification tower 30, the number of which is the same as that of the horizontal pipes 33 and the position of which is corresponding to that of the horizontal pipes 33, so that the staff can observe the working status inside the spray purification tower, such as the spraying of the liquid medicine, the flow of gas, etc., so as to discover and solve problems in time.

[0034] Specifically, a liquid inlet 41 for adding spray liquid is opened at the top of the liquid medicine pool 40, and a drain pipe 42 with a sealing plug for discharging waste liquid is connected to the bottom of one side of the liquid medicine pool 40. An infusion pump 43 is installed at the bottom of the liquid medicine pool 40, and the liquid outlet end of the infusion pump 43 is connected to the infusion pipe 32, which can provide a stable and controllable liquid flow for spray purification, thereby ensuring the effect of spray purification.

[0035] In addition, a baffle 44 is installed in the liquid medicine pool 40 to isolate the liquid medicine, preventing the liquid medicine from generating excessive fluctuations or vortices in the liquid medicine pool 40, thereby ensuring the uniformity and stability of the liquid medicine, and further improving the effect of spray purification.

[0036] The working principle of this high-efficiency filtration device for coke oven gas purification is as follows: when in use, the coke oven gas first enters the primary filter box 10 through the pipeline. In the primary filter box 10, the gas first encounters the stainless steel wire mesh 13, which initially intercepts large particles of impurities in the gas. Subsequently, the gas passes through the coarse filter layer 14 to further remove medium-sized particles. Finally, the gas passes through the fine filter layer 15 to finely filter out tiny particles in the gas, thereby ensuring the initial purification effect of the coke oven gas. When cleaning is required, the pull-out pull plate 17 can be easily pulled out through the pull-out design to clean the dust and impurities in the dust hopper 12. This design improves cleaning efficiency and reduces maintenance costs.

[0037] After primary filtration, the coke oven gas enters the spray purification tower 30 through the delivery pipe 20. Within the spray purification tower 30, a liquid delivery pipe 32 transports the purified chemical solution from the chemical tank 40 to a transverse pipe 33. Atomizing nozzles 34 at the bottom of transverse pipe 33 atomize the chemical solution into fine droplets. This atomized chemical solution comes into full contact with the coke oven gas, effectively removing harmful gases and residual impurities from the gas. After spray purification, the harmful gases and residual impurities in the coke oven gas are largely removed, meeting the purification standards. The purified gas is then output through the outlet of the spray purification tower 30 for subsequent use or processing.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency filtering device for coke oven gas purification, characterized by: It comprises a primary filter box (10) and a spray purification tower (30) for purifying coke oven gas, wherein the primary filter box (10) and the spray purification tower (30) are connected via a delivery pipe (20), and a liquid medicine pool (40) is connected to the bottom of the spray purification tower (30); The primary filter box (10) is provided with a stainless steel wire mesh (13), a coarse filter layer (14), and a fine filter layer (15) in sequence from left to right. A pull-out plate (17) is installed on one side of the bottom of the primary filter box (10), and a dust collecting hopper (12) is installed at the bottom of the pull plate (17). A vertically arranged liquid infusion pipe (32) is installed on the outer wall of one side of the spray purification tower (30), and a plurality of parallel horizontal pipes (33) are installed on the outer wall of the liquid infusion pipe (32). The horizontal pipes (33) are inserted into the interior of the spray purification tower (30), and a plurality of evenly and equidistantly arranged atomizing nozzles (34) are installed at the bottom of the horizontal pipes (33).

2. The high-efficiency filtering device for coke oven gas purification according to claim 1, characterized in that: The two ends of the bottom of the primary filter box (10) are symmetrically arranged on the columns (11).

3. The high-efficiency filtering device for coke oven gas purification according to claim 2, characterized in that: The bottom of the column (11) and the bottom of the liquid medicine pool (40) are located at the same height, and universal wheels (16) are installed at the four top corners of the bottom of the column (11) and the bottom of the liquid medicine pool (40).

4. The high-efficiency filtering device for coke oven gas purification according to claim 1, characterized in that: The coarse filter layer (14) is filled with ceramic filter material with a diameter of 5-7 mm, and the fine filter layer (15) is filled with activated carbon with a diameter of 0.6-1.5 mm.

5. The high-efficiency filtering device for coke oven gas purification according to claim 1, characterized in that: Observation windows (31) are installed on the outer wall of the spray purification tower (30), the number of which is the same as that of the horizontal pipes (33) and the positions of which are corresponding.

6. The high-efficiency filtering device for coke oven gas purification according to claim 1, characterized in that: The top of the liquid medicine pool (40) is provided with a liquid inlet (41) for adding spray liquid medicine, and the bottom of one side of the liquid medicine pool (40) is connected to a drain pipe (42) with a sealing plug for discharging waste liquid medicine.

7. The high-efficiency filtering device for coke oven gas purification according to claim 6, characterized in that: An infusion pump (43) is installed at the bottom of the liquid medicine pool (40), and the liquid outlet of the infusion pump (43) is connected to the infusion tube (32).

8. The high-efficiency filtering device for coke oven gas purification according to claim 1, characterized in that: A liquid baffle (44) for isolating the liquid medicine is installed in the liquid medicine pool (40).

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