High-efficiency treatment device for coking tail gas

Abstract

The high-efficiency coking tail gas treatment device comprises a tail gas filtering box and a treatment stirring tank which are assembled at the upper end of a treatment table, and a tail gas through pipe is assembled between the tail gas filtering box and the treatment stirring tank; a filtering assembly is assembled in the tail gas filtering box, and a stirring assembly is assembled in the treatment stirring tank; guide sliding grooves are formed in the inner walls of the two sides of the tail gas filtering box, guide sliding plates are installed on the two side walls of the filtering assembly, and the guide sliding plates are installed in the guide sliding grooves; a limiting box is mounted at the top end of the left guide sliding plate; according to the high-efficiency coking tail gas treatment device, the tail gas filtering box and the treatment stirring box are arranged, coking tail gas is filtered through the tail gas filtering box, dust and ash in the coking tail gas are filtered and adsorbed, harmful substances in the coking tail gas make contact with reaction liquid through the treatment stirring box, and secondary treatment is conducted on the coking tail gas; therefore, the treatment efficiency of the coking tail gas is improved, and the pollution to the atmosphere is reduced.

Description

Technical Field

[0001] This patent relates to the field of coking tail gas treatment, specifically a high-efficiency coking tail gas treatment device. Background Art

[0002] In the process of coking coal in the coking furnace, a large amount of pollutants such as nitrogen oxides, sulfur dioxide, sulfur trioxide and dust will be produced, which are very likely to pollute the environment. With the improvement of environmental protection requirements, the emission standards for nitrogen oxides are becoming more and more stringent;

[0003] At present, the purification method of the coking tail gas treatment device is single, the treatment of the waste gas is not thorough enough, and there is still a hidden danger of causing pollution to the atmosphere, so it is necessary to improve the existing technology. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this patent is to provide a high-efficiency treatment device for coking tail gas.

[0005] The technical solution adopted by this patent to solve its technical problem is: a high-efficiency treatment device for coking tail gas, including a tail gas filter box and a treatment stirring tank installed on the upper end of the treatment table, and a tail gas passage pipe is installed between the tail gas filter box and the treatment stirring tank;

[0006] The exhaust gas filter box is internally equipped with a filter assembly, and the treatment stirring tank is internally equipped with a stirring assembly;

[0007] The inner walls on both sides of the exhaust gas filter box are provided with guide slides, and the inner walls on both sides of the filter assembly are provided with guide slides, and the guide slides are installed in the guide slides;

[0008] A limit box is installed on the top end of the guide slide plate on the left side.

[0009] Furthermore, the filter assembly includes an activated carbon plate a, an activated carbon plate b and a semi-coke plate, and the three are arranged in sequence from bottom to top.

[0010] Furthermore, the stirring assembly includes a main stirring shaft and an auxiliary stirring shaft assembled inside the processing stirring tank, a motor is installed at the top of the processing stirring tank, a driving cavity is opened at the top of the processing stirring tank, and the top of the main stirring shaft is connected to the driving end of the motor.

[0011] Furthermore, a driving gear is installed on the outside of the main stirring shaft in the driving cavity, and a driven gear is installed on the outside of the auxiliary stirring shaft in the driving cavity, and the driving gear and the driven gear are meshed with each other, and stirring rods are alternately installed on the outer walls of the main stirring shaft and the auxiliary stirring shaft.

[0012] Furthermore, a driving port is provided on the side wall of the limit box, a limiting rod is installed in the driving port, a limiting hole is provided on the left inner wall of the exhaust gas filter box at the upper end of the guide slide groove, the limiting rod is inserted in the limiting hole, a telescopic rod is installed inside the limit box, the end of the telescopic rod is connected to the limit rod, and a spring is sleeved on the outside of the telescopic rod between the limit rod and the inner wall of the limit box.

[0013] Furthermore, a driving slideway is provided at the top of the limit box, a driving slide bar is installed inside the driving slideway, and the driving slide bar is connected to the limit bar.

[0014] Furthermore, the lower end of the left side wall of the exhaust gas filter box is equipped with an exhaust gas inlet pipe, the lower end of the right side wall of the treatment and mixing tank is equipped with a drain pipe, and the top of the treatment and mixing tank is equipped with an exhaust pipe.

[0015] The beneficial effects of this patent are:

[0016] A high-efficiency treatment device for coking tail gas has a simple structure and is easy to operate. By arranging a tail gas filter box and a treatment stirring box, the coking tail gas is filtered through the tail gas filter box, and the dust and ash in the coking tail gas are filtered and adsorbed. The harmful substances in the coking tail gas are contacted with the reaction liquid through the treatment stirring box, and the coking tail gas is subjected to secondary treatment, thereby improving the treatment efficiency of the coking tail gas and reducing pollution to the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of this patent.

[0018] Figure 2 This is a schematic diagram of the interior of the processing stirring tank of this patent.

[0019] Figure 3 This is a schematic diagram of the interior of the exhaust filter box of this patent.

[0020] Figure 4 This is a schematic diagram of the interior of the limit box of this patent.

[0021] Explanation of the accompanying drawings: 1 treatment table, 2 exhaust gas filter box, 3 treatment mixing tank, 4 exhaust gas intake pipe, 5 exhaust gas duct, 6 activated carbon plate a, 7 activated carbon plate b, 8 semi-coke plate, 9 guide slide plate, 10 guide slide groove, 11 limit hole, 12 limit box, 13 drive port, 14 telescopic rod, 15 drive slide rod, 16 drive slideway, 17 limit rod, 18 drive chamber, 19 stirring rod, 20 drain pipe, 21 driven gear, 22 exhaust pipe, 23 driving gear, 24 main stirring shaft, 25 motor, 26 auxiliary stirring shaft. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 It is a schematic diagram of the structure of the present patent, a high-efficiency treatment device for coking tail gas, comprising a tail gas filter box 2 and a treatment stirring tank 3 mounted on the upper end of a treatment platform 1, a tail gas pipe 5 is mounted between the tail gas filter box 2 and the treatment stirring tank 3, a through hole is provided at the upper end of the right side wall of the tail gas filter box 2, a through hole is provided at the lower end of the left side wall of the treatment stirring tank 3, and the two through holes are connected by the tail gas pipe 5, and a reagent is arranged inside the treatment stirring tank 3, and the reagent mainly comprises a denitrification agent and a desulfurization agent, wherein the denitrification agent includes but is not limited to liquid ammonia, ammonia water, urea and other substances, and ammonia is preferably used in this embodiment, and the desulfurization agent includes but is not limited to sodium bicarbonate (NaHCO3), calcium hydroxide (Ca(OH)2), calcium carbonate (CaCO3), sodium carbonate (Na2CO3) and other substances;

[0024] The exhaust gas filter box 2 is internally equipped with a filter assembly, and the treatment stirring tank 3 is internally equipped with a stirring assembly;

[0025] The inner walls of both sides of the exhaust gas filter box 2 are provided with guide slots 10, and the two side walls of the filter assembly are provided with guide slides 9, which are installed in the guide slots 10, so that the filter assembly is installed in the exhaust gas filter box 2;

[0026] A limit box 12 is installed at the top end of the left guide slide plate 9, and the filter assembly is limited by the limit box 12.

[0027] The filter assembly includes an activated carbon plate a6, an activated carbon plate b7 and a semi-coke plate 8, and the three are arranged in sequence from bottom to top, and the particles of the activated carbon plate a6 are slightly larger than those of the activated carbon plate b7.

[0028] The stirring assembly includes a main stirring shaft 24 and an auxiliary stirring shaft 26 assembled inside the processing stirring tank 3. A motor 25 is installed at the top of the processing stirring tank 3. A driving cavity 18 is opened at the top of the inner top of the processing stirring tank 3. The top of the main stirring shaft 24 is connected to the driving end of the motor 25. There are two auxiliary stirring shafts 26, which are installed in the driving cavity 18 through bearings. The motor 25 can drive the main stirring shaft 24 to rotate.

[0029] The outside of the main stirring shaft 24 is located in the driving chamber 18 and is equipped with a driving gear 23. The outside of the auxiliary stirring shaft 26 is located in the driving chamber 18 and is equipped with a driven gear 21. The driving gear 23 and the driven gear 21 are meshed with each other. The outer walls of the main stirring shaft 24 and the auxiliary stirring shaft 26 are alternately equipped with stirring rods 19. Through the cooperation of the two gears, the auxiliary stirring shaft 26 is driven to rotate by the main stirring shaft 24, so that stirring is performed by the stirring rod 19.

[0030] A driving opening 13 is provided on the side wall of the limit box 12, and a limiting rod 17 is installed in the driving opening 13. A limiting hole 11 is provided on the left inner wall of the exhaust filter box 2 at the upper end of the guide slide groove 10, and the limiting rod 17 is inserted in the limiting hole 11. A telescopic rod 14 is installed inside the limit box 12, and the end of the telescopic rod 14 is connected to the limiting rod 17. The outside of the telescopic rod 14 is sleeved with a spring located between the limiting rod 17 and the inner wall of the limit box 12. The limiting rod 17 can be inserted into the limiting hole 11 through the telescopic rod 14, so that the limit box 12 can be fixed, and the filter assembly can be fixed.

[0031] A driving slideway 16 is provided at the top of the limit box 12 , a driving slide bar 15 is installed inside the driving slideway 16 , and the driving slide bar 15 is connected to the limit bar 17 .

[0032] The lower end of the left wall of the exhaust gas filter box 2 is equipped with an exhaust gas inlet pipe 4, the lower end of the right wall of the treatment and mixing tank 3 is equipped with a drain pipe 20, and the top of the treatment and mixing tank 3 is equipped with an exhaust pipe 22. The agent is discharged through the drain pipe 20, and the treated exhaust gas is discharged through the exhaust pipe 22.

[0033] Working process and principle: When in use, first, the coking tail gas is discharged into the tail gas filter box 2 through the tail gas inlet pipe 4, filtered through the filter assembly, and then discharged into the treatment stirring tank 3 through the tail gas passage 5, and subjected to secondary treatment by the internal reagents. At this time, the motor 25 is started for sufficient stirring treatment, and finally discharged through the exhaust pipe 22.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-efficiency treatment device for coking tail gas, comprising a tail gas filter box (2) and a treatment stirring tank (3) mounted on the upper end of a treatment table (1), characterized in that: An exhaust gas passage (5) is installed between the exhaust gas filter box (2) and the treatment stirring tank (3); The exhaust gas filter box (2) is internally equipped with a filter assembly, and the treatment stirring tank (3) is internally equipped with a stirring assembly; The inner walls of both sides of the exhaust gas filter box (2) are provided with guide slide grooves (10), and the inner walls of both sides of the filter assembly are provided with guide slide plates (9), and the guide slide plates (9) are installed in the guide slide grooves (10); A limit box (12) is installed at the top end of the guide slide plate (9) on the left side; A driving opening (13) is provided on the side wall of the limit box (12), a limiting rod (17) is installed in the driving opening (13), a limiting hole (11) is provided on the left inner wall of the exhaust gas filter box (2) at the upper end of the guide slide groove (10), the limiting rod (17) is inserted into the limiting hole (11), a telescopic rod (14) is installed inside the limit box (12), the end of the telescopic rod (14) is connected to the limiting rod (17), and a spring is sleeved on the outside of the telescopic rod (14) between the limiting rod (17) and the inner wall of the limit box (12); A driving slideway (16) is provided at the top of the limit box (12), a driving slide bar (15) is installed inside the driving slideway (16), and the driving slide bar (15) is connected to the limit bar (17).

2. The high-efficiency treatment device for coking tail gas according to claim 1 is characterized in that: The filtering assembly comprises an activated carbon plate a (6), an activated carbon plate b (7) and a semi-coke plate (8), and the three are arranged in sequence from bottom to top.

3. The high-efficiency treatment device for coking tail gas according to claim 1 is characterized in that: The stirring assembly comprises a main stirring shaft (24) and a secondary stirring shaft (26) which are mounted inside a treatment stirring tank (3); a motor (25) is mounted on the top of the treatment stirring tank (3); a driving chamber (18) is provided on the top of the treatment stirring tank (3); and the top of the main stirring shaft (24) is connected to the driving end of the motor (25).

4. The high-efficiency treatment device for coking tail gas according to claim 3 is characterized in that: The outside of the main stirring shaft (24) is located in the driving chamber (18) and is equipped with a driving gear (23); the outside of the auxiliary stirring shaft (26) is located in the driving chamber (18) and is equipped with a driven gear (21); the driving gear (23) and the driven gear (21) are meshed with each other; and stirring rods (19) are alternately mounted on the outer walls of the main stirring shaft (24) and the auxiliary stirring shaft (26).

5. The high-efficiency treatment device for coking tail gas according to claim 1 is characterized in that: The lower end of the left wall of the exhaust gas filter box (2) is equipped with an exhaust gas intake pipe (4), the lower end of the right wall of the treatment and stirring tank (3) is equipped with a drain pipe (20), and the top end of the treatment and stirring tank (3) is equipped with an exhaust pipe (22).

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