Tail gas treatment device of rotary kiln

Abstract

The utility model provides a tail gas treatment device of a rotary kiln, the tail gas treatment device of the rotary kiln comprises the rotary kiln, a conveying pipeline assembly, an adsorption assembly and a cleaning mechanism, the conveying pipeline assembly is communicated with the rotary kiln, and the adsorption assembly comprises an adsorption cylinder, a cooling outer cylinder wrapping the adsorption cylinder and a dirt collecting tank connected to the adsorption cylinder; the adsorption cylinder is communicated with the conveying pipeline assembly; the cleaning mechanism comprises a mounting shell fixed to the adsorption barrel, a telescopic rotating assembly, a rotating shaft, bristles and a washing assembly, the telescopic rotating assembly is arranged in the mounting shell, the two ends of the rotating shaft are connected to the telescopic rotating assembly and the bristles respectively, the bristles abut against the inner wall of the adsorption barrel, and the washing assembly is arranged above the telescopic rotating assembly. Cooling water cools the adsorption cylinder, tar of tail gas is condensed and adsorbed to the adsorption cylinder, the tar of the tail gas is removed, washing liquid is sprayed through the washing assembly, the telescopic rotating assembly drives the bristles to clean the adsorbed tar, the disassembly time and cost are saved, and the work of cleaning the tar of the adsorption cylinder is facilitated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery material production, and in particular to an exhaust gas treatment device of a rotary kiln. Background Art

[0002] In the production process of battery negative electrode materials, rotary kilns are used to sinter battery negative electrode materials. During the sintering process of the rotary kiln, the negative electrode materials will undergo complex chemical reactions, causing the tail gas produced by the rotary kiln to contain tar, which is then transmitted and discharged through pipelines.

[0003] During the exhaust gas transmission process, the tar in the exhaust gas is not treated, and the tar in the exhaust gas is easily adsorbed on the inner wall of the pipe. The tar adsorbed in the pipe is difficult to remove, and it requires a lot of manpower, material resources and time to dismantle and clean it.

[0004] As disclosed in the technical solution CN201920741538.6 of the comparative document, a vacuum chemical vapor deposition furnace tar condensation adsorber includes a condenser body, an outer condenser and an inner condenser are sequentially connected to the condenser body, an air inlet is provided on one side of the upper end of the condenser body, an exhaust port is provided on one side of the lower end of the condenser body, the air inlet and the exhaust port are respectively located on opposite sides of the condenser body, and a sewage outlet is provided at the bottom of the condenser body. The condensation adsorber can condense and adsorb the tar in the vapor deposition furnace to prevent tar or carbon ink from clogging the vacuum pump pipeline. However, after the tar is adsorbed in this solution, it is difficult to clean the tar, and it takes a lot of manpower and time to clean it. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a tail gas treatment device for a rotary kiln that absorbs and removes tar from tail gas and facilitates cleaning of the tar.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A tail gas treatment device for a rotary kiln comprises a rotary kiln, a transmission pipeline component, an adsorption component and a cleaning mechanism, wherein the transmission pipeline component is connected to the rotary kiln.

[0008] The adsorption assembly includes an adsorption cylinder, a cooling outer cylinder and a dirt collecting tank, wherein the cooling outer cylinder is coated on the adsorption cylinder, a cooling channel is formed between the cooling outer cylinder and the adsorption cylinder, the adsorption cylinder is provided with an adsorption channel and an exhaust gas outlet which are interconnected, the adsorption channel is connected to the gas outlet end of the transmission pipeline assembly, the exhaust gas outlet is used to communicate with the external environment, and the dirt collecting tank is threadedly connected to the bottom of the adsorption cylinder;

[0009] The cleaning mechanism includes a mounting shell, a telescopic rotating component, a rotating shaft, bristles and a washing component. The mounting shell is fixed above the adsorption cylinder, the telescopic rotating component is arranged in the mounting shell, one end of the rotating shaft is connected to the output end of the telescopic rotating component, the other end of the rotating shaft is passed through the adsorption channel, the bristles are connected to the other end of the rotating shaft, the bristles abut against the inner wall of the adsorption cylinder, and the washing component is arranged above the bristles.

[0010] In one of the embodiments, the adsorption cylinder is further provided with an adsorption protrusion.

[0011] In one embodiment, the telescopic rotation assembly includes a telescopic motor and a rotating motor, both of which are arranged in the mounting shell, the telescopic motor is connected to the inner wall of the mounting shell, the rotating motor is connected to the telescopic end of the telescopic motor, and one end of the rotating shaft is connected to the output end of the rotating motor.

[0012] In one embodiment, the washing component includes a washing liquid storage tank, a pressure pump, an elastic inner tube, a liquid inlet pipe and a washing temporary storage cylinder, the washing temporary storage cylinder is sleeved on the rotating shaft, the washing temporary storage cylinder is provided with a liquid spray hole, the elastic inner tube is arranged in the adsorption channel, the liquid inlet pipe and the washing temporary storage cylinder are arranged outside the adsorption cylinder, one end of the elastic inner tube is connected to the washing temporary storage cylinder, the other end of the elastic inner tube is connected to one end of the liquid inlet pipe, the pressure pump is installed on the liquid inlet pipe, and the other end of the liquid inlet pipe is connected to the washing liquid storage tank.

[0013] In one embodiment, the number of the liquid spraying holes is a plurality, and the plurality of liquid spraying holes are arranged at intervals along the outer peripheral wall of the washing temporary storage cylinder.

[0014] In one embodiment, the exhaust gas treatment device of the rotary kiln also includes a particle treatment structure, which includes a particle collection assembly and a dust bag. The particle collection assembly is connected to the exhaust gas outlet, the dust bag is connected to the bottom of the particle collection assembly, and an air outlet is provided at the top of the particle collection assembly.

[0015] In one embodiment, the tail gas treatment device of the rotary kiln also includes an atmosphere component, which includes a nitrogen source and a carrier gas heating component. The nitrogen source is connected to the air inlet end of the carrier gas heating component, and the air outlet end of the carrier gas heating component is connected to the rotary kiln.

[0016] In one embodiment, the conveying pipe assembly includes an inner lining pipe and a heating outer pipe, and the atmosphere assembly also includes a heating outlet pipe. The heating outer pipe is sleeved on the inner lining pipe, and the inner lining pipe is provided with a first gas channel, one end of the first gas channel is connected to the gas outlet end of the rotary kiln, and the other end of the first gas channel is connected to the adsorption channel. A second gas channel is formed between the heating outer pipe and the inner lining pipe, one end of the second gas channel is connected to the adsorption channel, the other end of the second gas channel is connected to one end of the heating outlet pipe, and the other end of the heating outlet pipe is connected to the carrier gas heating assembly.

[0017] In one embodiment, the inner liner tube is provided with an air hole, one end of the air hole is connected to the first gas channel, and the other end of the air hole is connected to the second gas channel.

[0018] In one embodiment, the cooling outer cylinder is provided with a water inlet and a water outlet, the water inlet and the water outlet are both connected to the cooling channel, and the water inlet is located above the water outlet.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] 1. In the above-mentioned tail gas treatment device of the rotary kiln, when the tail gas containing tar is introduced into the adsorption channel, cooling water is introduced into the cooling channel to cool the adsorption cylinder, so that the tar in the tail gas contacts the adsorption cylinder, and the tar condenses and adsorbs on the inner wall of the adsorption cylinder, so that the tar in the tail gas of the rotary kiln is removed, the pipeline of the tar adsorption transmission process is prevented, and the pollution caused by the tar discharge is avoided;

[0021] 2. When it is necessary to clean the tar on the inner wall of the adsorption cylinder, the washing liquid can be sprayed through the washing component, and the telescopic rotating component drives the bristles to rotate and move up and down, so that the bristles continuously clean the tar on the inner wall of the adsorption cylinder. The tar and washing liquid can be quickly processed by opening the sewage collection tank, saving the time and cost of disassembling the pipeline for cleaning, and facilitating the work of cleaning the tar in the adsorption cylinder.

[0022] 3. The inner lining pipe is provided with air holes, and the heated nitrogen is released from the air holes, and a counter-flow is formed between the heated nitrogen and the tail gas from the rotary kiln. The airflow formed by the nitrogen from the air holes on the inner wall of the inner lining pipe protects the inner lining pipe and prevents the tar of the tail gas from adhering to the inner wall of the inner lining pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic structural diagram of a tail gas treatment device of a rotary kiln according to one embodiment;

[0025] Figure 2 for Figure 1 A partial cross-sectional view of a tail gas treatment device of a rotary kiln shown;

[0026] Figure 3 for Figure 1 Another partial cross-sectional view of the tail gas treatment device of the rotary kiln shown;

[0027] Figure 4 for Figure 1 The structural schematic diagram of the transmission pipeline assembly is shown.

[0028] Figure numerals: 10-exhaust treatment device of rotary kiln; 100-rotary kiln; 200-transmission pipeline assembly; 210-inner liner; 2101-first gas channel; 2102-air vent; 220-heating outer tube; 2201-second gas channel; 300-adsorption assembly; 310-adsorption cylinder; 311-adsorption protrusion; 3101-adsorption channel; 3102-exhaust outlet; 320-cooling outer cylinder; 3201-cooling channel; 3202-water inlet; 3203-water outlet; 330-sewage collecting tank; 400-cleaning machine Structure; 410-installation shell: 420-telescopic rotating component; 421-telescopic motor; 422-rotating motor; 430-rotating shaft; 440-brush; 450-washing component; 451-washing liquid storage tank; 452-pressure pump; 453-elastic inner tube; 454-liquid inlet pipe; 455-washing temporary storage cylinder; 4501-liquid spray hole; 500-particle processing structure; 510-particle collection component; 5101-air outlet; 520-dust removal bag; 600-atmosphere component; 610-heat carrier heating component; 620-heating outlet pipe. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0033] like Figures 1 to 4 As shown, the tail gas treatment device 10 of the rotary kiln according to an embodiment of the present disclosure includes a rotary kiln 100, a transmission pipeline assembly 200, an adsorption assembly 300 and a cleaning mechanism 400. The transmission pipeline assembly 200 is connected to the rotary kiln 100. During the sintering process of the rotary kiln 100, tail gas containing tar is generated and passed into the transmission pipeline assembly 200. The adsorption assembly 300 includes an adsorption cylinder 310, a cooling outer cylinder 320 and a sewage collecting tank 330. The cooling outer cylinder 320 is coated on the adsorption cylinder 310. A cooling channel 330 is formed between the cooling outer cylinder 320 and the adsorption cylinder 310. 201, the cooling channel 3201 is used to introduce cooling water, the adsorption cylinder 310 is provided with an adsorption channel 3101 and a tail gas outlet 3102 which are interconnected, the tail gas passes through the adsorption channel 3101 and is discharged from the tail gas outlet 3102, the adsorption channel 3101 is connected to the gas outlet end of the conveying pipe assembly 200, the tail gas outlet 3102 is used to communicate with the external environment, the sewage collecting tank 330 is used to collect the cleaned tar and washing liquid, the sewage collecting tank 330 is threadedly connected to the bottom of the adsorption cylinder 310, and the sewage collecting tank 330 can be loosened and opened to process the collected tar and washing liquid.

[0034] Furthermore, the cleaning mechanism 400 includes a mounting shell 410, a telescopic rotating component 420, a rotating shaft 430, bristles 440 and a washing component 450. The mounting shell 410 is fixed above the adsorption cylinder 310, the telescopic rotating component 420 is arranged in the mounting shell 410, one end of the rotating shaft 430 is connected to the output end of the telescopic rotating component 420, and the other end of the rotating shaft 430 is passed through the adsorption channel 3101. The telescopic rotating component 420 can drive the rotating shaft 430 to retract and rotate, the bristles 440 are connected to the other end of the rotating shaft 430, the bristles 440 abut against the inner wall of the adsorption cylinder 310, and the washing component 450 is arranged above the bristles 440. The washing component 450 is used to spray washing liquid.

[0035] In this embodiment, the rotary kiln 100 generates tail gas containing tar during the sintering process. The tail gas containing tar enters the adsorption channel 3101 from the rotary kiln 100 through the transmission pipe assembly 200. Cooling water is introduced into the cooling channel 3201 to cool the adsorption cylinder 310. When the tail gas containing tar contacts the warm adsorption cylinder 310, the tar condenses and is adsorbed on the inner wall of the adsorption cylinder 310. The tail gas after the tar is adsorbed is discharged from the tail gas outlet 3102. When it is necessary to remove the tail gas in the adsorption cylinder 310, the tail gas containing tar is discharged from the tail gas outlet 3102. When there is tar on the wall, the washing component 450 can spray washing liquid, and the telescopic rotating component 420 can drive the bristles 440 to rotate and move up and down, so that the bristles 440 clean the tar adsorbed on the inner wall of the adsorption cylinder 310, and the adsorption cylinder 310 recovers the ability to adsorb tar, and the cleaned tar and washing liquid mixture falls into the sump 330. When the sump 330 collects a certain amount of the tar and washing liquid mixture, the sump 330 can be opened to process the tar and washing liquid mixture.

[0036] In the exhaust gas treatment device 10 of the rotary kiln mentioned above, when the exhaust gas containing tar is introduced into the adsorption channel 3101, cooling water is introduced into the cooling channel 3201 to cool the adsorption cylinder 310, so that the tar in the exhaust gas contacts the adsorption cylinder 310, and the tar condenses and adsorbs on the inner wall of the adsorption cylinder 310, so that the tar in the exhaust gas of the rotary kiln 100 is removed, the pipeline of the tar adsorption transmission process is prevented, and the pollution caused by tar discharge is avoided; when it is necessary to remove the tar on the inner wall of the adsorption cylinder 310, the washing liquid can be sprayed through the washing component 450, and the telescopic rotating component 420 drives the bristles 440 to rotate and move up and down, so that the bristles 440 continuously remove the tar on the inner wall of the adsorption cylinder 310, and the sump 330 can be opened to quickly process the tar and washing liquid, saving the time and cost of disassembling the pipeline for cleaning, and facilitating the work of cleaning the tar in the adsorption cylinder 310.

[0037] like Figure 3As shown, in one embodiment, the adsorption cylinder 310 is further provided with adsorption protrusions 311. In this embodiment, a large number of adsorption protrusions 311 are provided on the inner wall of the adsorption cylinder 310, and the adsorption protrusions 311 increase the contact area between the inner wall of the adsorption cylinder 310 and the exhaust gas, thereby increasing the adsorption effect of the adsorption cylinder 310 on tar, thereby achieving a better tar treatment effect.

[0038] like Figure 2 As shown, in one embodiment, the telescopic rotating assembly 420 includes a telescopic motor 421 and a rotating motor 422, both of which are arranged in the mounting shell 410, the telescopic motor 421 is connected to the inner wall of the mounting shell 410, the rotating motor 422 is connected to the telescopic end of the telescopic motor 421, and one end of the rotating shaft 430 is connected to the output end of the rotating motor 422. In this embodiment, the telescopic motor 421 can drive the rotating motor 422 to rise and fall, and the rotating motor 422 can drive the rotating shaft 430 to rise and fall, so that the bristles 440 on the rotating shaft 430 rotate and move up and down, thereby increasing the cleaning effect of the bristles 440 on the inner wall of the adsorption cylinder 310, so that the tar is processed more cleanly.

[0039] like Figure 2 As shown, in one embodiment, the washing component 450 includes a washing liquid storage tank 451, a pressure pump 452, an elastic inner tube 453, a liquid inlet pipe 454 and a washing temporary storage cylinder 455, the washing temporary storage cylinder 455 is sleeved on the rotating shaft 430, the washing temporary storage cylinder 455 is provided with a liquid spray hole 4501, the elastic inner tube 453 is arranged in the adsorption channel 3101, the liquid inlet pipe 454 and the washing temporary storage cylinder 455 are arranged outside the adsorption cylinder 310, one end of the elastic inner tube 453 is connected to the washing temporary storage cylinder 455, the other end of the elastic inner tube 453 is connected to one end of the liquid inlet pipe 454, the pressure pump 452 is installed on the liquid inlet pipe 454, and the other end of the liquid inlet pipe 454 is connected to the washing liquid storage tank 451. In this embodiment, the pressure pump 452 can draw the washing liquid in the washing liquid storage tank 451, so that the washing liquid is pressurized and enters the elastic inner tube 453 from the liquid inlet pipe 454, and the washing liquid is sprayed out through the spray hole 4501. The pressure pump 452 pressurizes the washing liquid when drawing the washing liquid in the washing liquid storage tank 451, so that the washing liquid is sprayed from the spray hole 4501 onto the inner wall of the adsorption cylinder 310, thereby facilitating the cleaning work of the bristles 440 on the inner wall of the adsorption cylinder 310.

[0040] like Figure 3As shown, in one embodiment, the number of the liquid spray holes 4501 is multiple, and the multiple liquid spray holes 4501 are spaced apart along the outer peripheral wall of the temporary washing storage cylinder 455. In this embodiment, the multiple liquid spray holes 4501 are spaced apart along the outer peripheral wall of the temporary washing storage cylinder 455, so that when the washing liquid is sprayed from the multiple liquid spray holes 4501, the washing liquid is more evenly sprinkled on the inner wall of the adsorption cylinder 310, so that the washing liquid evenly infiltrates the inner wall of the adsorption cylinder 310, and further increases the cleaning effect of the bristles 440 on the inner wall of the adsorption cylinder 310.

[0041] like Figure 1 As shown, in one embodiment, the tail gas treatment device 10 of the rotary kiln further includes a particle treatment structure 500, and the particle treatment structure 500 includes a particle collection assembly 510 and a dust removal bag 520. The particle collection assembly 510 is connected to the tail gas outlet 3102, and the dust removal bag 520 is connected to the bottom of the particle collection assembly 510. The top of the particle collection assembly 510 is provided with an air outlet 5101. In this embodiment, the particle collection assembly 510 can filter the dust of the tail gas, and the filtered dust falls into the dust removal bag 520 and is processed, thereby reducing the dust pollution of the tail gas. The top of the particle collection assembly 510 is provided with an air outlet 5101 and can also be connected to an incineration device to incinerate the tail gas, further removing pollutants in the tail gas, thereby reducing the pollution of the tail gas to the environment.

[0042] like Figure 1 As shown, in one embodiment, the tail gas treatment device 10 of the rotary kiln further includes an atmosphere component 600, and the atmosphere component 600 includes a nitrogen source and a carrier gas heating component 610. The nitrogen source is connected to the air inlet end of the carrier gas heating component 610, and the air outlet end of the carrier gas heating component 610 is connected to the rotary kiln 100. In this embodiment, the nitrogen source outputs nitrogen, and the carrier gas heating component 610 can heat the nitrogen. The nitrogen can seal the rotary kiln 100 and drive the tail gas to move toward the air outlet end of the rotary kiln 100, so that the tail gas flows into the transmission pipeline component 200 more quickly.

[0043] like Figure 1As shown, in one embodiment, the conveying pipe assembly 200 includes an inner liner tube 210 and a heating outer tube 220, and the atmosphere assembly 600 also includes a heating outlet pipe 620. The heating outer tube 220 is sleeved on the inner liner tube 210, and the inner liner tube 210 is provided with a first gas channel 2101. One end of the first gas channel 2101 is connected to the gas outlet end of the rotary kiln 100, and the other end of the first gas channel 2101 is connected to the adsorption channel 3101. A second gas channel 2201 is formed between the heating outer tube 220 and the inner liner tube 210, one end of the second gas channel 2201 is connected to the adsorption channel 3101, and the other end of the second gas channel 2201 is connected to one end of the heating outlet pipe 620, and the other end of the heating outlet pipe 620 is connected to the carrier gas heating assembly 610. In this embodiment, the exhaust gas of the rotary kiln 100 is introduced into the inner liner pipe 210, and the heated nitrogen is introduced into the heating outer pipe 220 through the heating outlet pipe 620, so that the heating outer pipe 220 is heated, thereby preventing the tar in the exhaust gas of the rotary kiln 100 from condensing and adsorbing on the inner wall of the inner liner pipe 210.

[0044] like Figure 1 and Figure 4 In one embodiment shown, an air hole 2102 is provided on the inner liner 210, one end of the air hole 2102 is connected to the first gas channel 2101, and the other end of the air hole 2102 is connected to the second gas channel 2201. In this embodiment, the inner liner 210 may have a plurality of air holes 2102, and the plurality of air holes 2102 are arranged at intervals on the inner liner 210. The heated nitrogen is released from the air holes 2102 of the inner liner 210, and a counter-flow is formed between the heated nitrogen and the tail gas from the rotary kiln 100. The air flow formed by the nitrogen from the air holes 2102 on the inner wall of the inner liner 210 protects the inner liner 210, thereby preventing the tar in the tail gas from adhering to the inner wall of the inner liner 210.

[0045] like Figure 3 As shown, in one embodiment, the cooling outer cylinder 320 is provided with a water inlet 3202 and a water outlet 3203, both of which are connected to the cooling channel 3201, and the water inlet 3202 is located below the water outlet 3203. In this embodiment, the water inlet 3202 is located at the top, so that the temperature above the adsorption cylinder 310 is relatively low, and the exhaust gas entering the adsorption channel 3101 and the adsorption cylinder 310 have a better cooling effect, so that the adsorption cylinder 310 has a better effect of adsorbing tar.

[0046] Compared with the prior art, the present invention has at least the following advantages:

[0047] 1. In the above-mentioned tail gas treatment device 10 of the rotary kiln, when the tail gas containing tar is introduced into the adsorption channel 3101, cooling water is introduced into the cooling channel 3201 to cool the adsorption cylinder 310, so that the tar in the tail gas contacts the adsorption cylinder 310, and the tar is condensed and adsorbed on the inner wall of the adsorption cylinder 310, so that the tar in the tail gas of the rotary kiln 100 is removed, the pipeline of the tar adsorption transmission process is prevented, and the pollution caused by the tar discharge is avoided;

[0048] 2. When it is necessary to clean the tar on the inner wall of the adsorption cylinder 310, the washing liquid can be sprayed through the washing component 450, and the telescopic rotating component 420 drives the bristles 440 to rotate and move up and down, so that the bristles 440 continuously clean the tar on the inner wall of the adsorption cylinder 310. The tar and washing liquid can be quickly processed by opening the sewage collection tank 330, which saves the time and cost of disassembling the pipeline for cleaning and facilitates the work of cleaning the tar in the adsorption cylinder 310.

[0049] 3. The inner lining tube 210 is provided with air holes 2102, and the heated nitrogen is released from the air holes 2102 of the inner lining tube 210, and a counter-flow is formed between the heated nitrogen and the tail gas from the rotary kiln 100. The airflow formed by the nitrogen from the air holes 2102 on the inner wall of the inner lining tube 210 protects the inner lining tube 210, thereby preventing the tar in the tail gas from adhering to the inner wall of the inner lining tube 210.

[0050] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A tail gas treatment device for a rotary kiln, characterized in that: The invention comprises a rotary kiln (100), a transmission pipeline assembly (200), an adsorption assembly (300) and a cleaning mechanism (400), wherein the transmission pipeline assembly (200) is connected to the rotary kiln (100). The adsorption assembly (300) comprises an adsorption cylinder (310), a cooling outer cylinder (320) and a dirt collecting tank (330); the cooling outer cylinder (320) is coated on the adsorption cylinder (310); a cooling channel (3201) is formed between the cooling outer cylinder (320) and the adsorption cylinder (310); the adsorption cylinder (310) is provided with an adsorption channel (3101) and an exhaust gas outlet (3102) that are interconnected; the adsorption channel (3101) is connected to the gas outlet end of the transmission pipeline assembly (200); the exhaust gas outlet (3102) is used to communicate with the external environment; and the dirt collecting tank (330) is threadedly connected to the bottom of the adsorption cylinder (310); The cleaning mechanism (400) includes a mounting shell (410), a telescopic rotating assembly (420), a rotating shaft (430), bristles (440) and a washing assembly (450), wherein the mounting shell (410) is fixed above the adsorption cylinder (310), the telescopic rotating assembly (420) is arranged in the mounting shell (410), one end of the rotating shaft (430) is connected to the output end of the telescopic rotating assembly (420), the bristles (440) are connected to the other end of the rotating shaft (430), the bristles (440) are abutted against the inner wall of the adsorption cylinder (310), and the washing assembly (450) is arranged above the bristles (440).

2. The tail gas treatment device of a rotary kiln according to claim 1, characterized in that: The adsorption cylinder (310) is also provided with an adsorption protrusion (311).

3. The tail gas treatment device of a rotary kiln according to claim 1, characterized in that: The telescopic rotating assembly (420) comprises a telescopic motor (421) and a rotating motor (422), wherein the telescopic motor (421) and the rotating motor (422) are both arranged in the mounting shell (410), the telescopic motor (421) is connected to the inner wall of the mounting shell (410), the rotating motor (422) is connected to the telescopic end of the telescopic motor (421), and one end of the rotating shaft (430) is connected to the output end of the rotating motor (422).

4. The tail gas treatment device of a rotary kiln according to claim 3, characterized in that: The washing assembly (450) comprises a washing liquid storage tank (451), a pressure pump (452), an elastic inner tube (453), a liquid inlet pipe (454) and a washing temporary storage cylinder (455). The washing temporary storage cylinder (455) is sleeved on the rotating shaft (430). The washing temporary storage cylinder (455) is provided with a liquid spraying hole (4501). The elastic inner tube (453) is arranged in the adsorption channel (3101). The liquid inlet pipe (454) and the washing temporary storage cylinder (455) are arranged outside the adsorption cylinder (310). One end of the elastic inner tube (453) is connected to the washing temporary storage cylinder (455), and the other end of the elastic inner tube (453) is connected to one end of the liquid inlet pipe (454). The pressure pump (452) is installed on the liquid inlet pipe (454), and the other end of the liquid inlet pipe (454) is connected to the washing liquid storage tank (451).

5. The tail gas treatment device of a rotary kiln according to claim 4, characterized in that: The number of the liquid spray holes (4501) is a plurality, and the plurality of liquid spray holes (4501) are arranged at intervals along the outer peripheral wall of the washing temporary storage cylinder (455).

6. The tail gas treatment device of a rotary kiln according to claim 1, characterized in that: The tail gas treatment device of the rotary kiln also includes a particle treatment structure (500), and the particle treatment structure (500) includes a particle collection component (510) and a dust removal bag (520), the particle collection component (510) is connected to the tail gas outlet (3102), the dust removal bag (520) is connected to the bottom of the particle collection component (510), and the top of the particle collection component (510) is provided with an air outlet (5101).

7. The tail gas treatment device of a rotary kiln according to claim 1, characterized in that: The tail gas treatment device of the rotary kiln also includes an atmosphere component (600), and the atmosphere component (600) includes a nitrogen source and a carrier gas heating component (610). The nitrogen source is connected to the air inlet end of the carrier gas heating component (610), and the air outlet end of the carrier gas heating component (610) is connected to the rotary kiln (100).

8. The tail gas treatment device of a rotary kiln according to claim 7, characterized in that: The conveying pipe assembly (200) includes an inner lining tube (210) and a heating outer tube (220), and the atmosphere assembly (600) also includes a heating outlet pipe (620). The heating outer tube (220) is sleeved on the inner lining tube (210), and the inner lining tube (210) is provided with a first gas channel (2101), one end of the first gas channel (2101) is connected to the gas outlet end of the rotary kiln (100), and the other end of the first gas channel (2101) is connected to the adsorption channel (3101), and a second gas channel (2201) is formed between the heating outer tube (220) and the inner lining tube (210), one end of the second gas channel (2201) is connected to the adsorption channel (3101), and the other end of the second gas channel (2201) is connected to one end of the heating outlet pipe (620), and the other end of the heating outlet pipe (620) is connected to the carrier gas heating assembly (610).

9. The tail gas treatment device of a rotary kiln according to claim 8, characterized in that: The inner lining tube (210) is provided with an air hole (2102), one end of the air hole (2102) is connected to the first gas channel (2101), and the other end of the air hole (2102) is connected to the second gas channel (2201).

10. The tail gas treatment device of a rotary kiln according to claim 1, characterized in that: The cooling outer cylinder (320) is provided with a water inlet (3202) and a water outlet (3203), and the water inlet (3202) and the water outlet (3203) are both connected to the cooling channel (3201), and the water inlet (3202) is located above the water outlet (3203).

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