A kind of alkali washing device for high-purity activated carbon

Abstract

The present invention relates to the technical field of activated carbon alkali washing, and more specifically, it relates to an alkali washing device for high-purity activated carbon, comprising an alkali washing tank, a cover plate, a material frame, a ventilation structure and a stirring structure. The top of the alkali washing tank is open, the cover plate is lifted and arranged on the top of the alkali washing tank, the material frame is arranged at the bottom of the cover plate, the ventilation structure comprises a fan, an air inlet and an air outlet, the air inlet and the air outlet are opened on the side wall of the alkali washing tank, the fan is arranged at the air inlet, and the air outlet is connected to a discharge pipe. The stirring structure comprises a motor, a mounting bracket, a transmission component and a stirring drum, the motor is arranged on the top of the cover plate, the mounting bracket is arranged at the bottom of the cover plate, the stirring drum is rotatably arranged on the mounting bracket, the transmission component is arranged in the mounting bracket and the transmission component is connected between the output end of the motor and the stirring drum. The present invention can prevent harmful gases generated during the activated carbon alkali washing process from being directly released, and enable the activated carbon to fully react with the alkali solution.

Description

Technical Field

[0001] The invention relates to the technical field of activated carbon alkali washing, in particular to an alkali washing device for high-purity activated carbon. Background Art

[0002] Activated carbon is a highly porous carbon material, usually made from wood, coal, coconut shells and other raw materials through high-temperature carbonization and subsequent activation treatment. Due to its unique physical structure, activated carbon has a large surface area and good adsorption capacity, making it widely used in the purification, deodorization, and removal of harmful substances from gases and liquids.

[0003] The refining process of high-purity activated carbon needs to remove surface impurities and residual chemicals to improve its adsorption capacity. The refining process usually includes pretreatment, pickling, alkali washing, water washing, drying and other steps. Among them, alkali washing requires the use of an alkali washing tank, which is a special equipment for alkali washing treatment. For example, a Chinese patent with publication number CN220657563U discloses an activated carbon regeneration device, which includes an acid washing tank, an alkali washing tank and a heating device. The interior of the acid washing tank and the alkali washing tank are both provided with a first supporting mesh plate that can be moved up and down. By placing the activated carbon on the first supporting mesh plate of the alkali washing tank, alkali washing can be performed.

[0004] However, the alkali washing tanks such as the above-mentioned ones are open alkali washing and static alkali washing. The open alkali washing will cause the harmful gases generated in the alkali washing process to be directly released into the environment around the alkali washing tank, endangering the health of the operators, while the static alkali washing will easily lead to insufficient reaction between the activated carbon and the alkali solution in the alkali washing tank, affecting the final quality of the activated carbon. Summary of the invention

[0005] In order to avoid the direct release of harmful gases generated during the activated carbon alkali washing process and to allow the activated carbon to fully react with the alkali solution, the present application provides an alkali washing device for high-purity activated carbon.

[0006] The present invention provides a high-purity activated carbon alkali washing device adopts the following technical scheme:

[0007] A high-purity activated carbon alkali washing device comprises an alkali washing tank, a cover plate, a material frame, a ventilation structure and a stirring structure, wherein the alkali washing tank has an opening at the top, the cover plate is lifted and arranged at the top of the alkali washing tank, the material frame is arranged at the bottom of the cover plate, the ventilation structure comprises a fan, an air inlet and an air outlet, the air inlet and the air outlet are opened on the side wall of the alkali washing tank, the fan is arranged at the air inlet, the air outlet is connected to a discharge pipe, the stirring structure comprises a motor, a mounting bracket, a transmission assembly and a stirring drum, the motor is arranged at the top of the cover plate, the mounting bracket is arranged at the bottom of the cover plate, the stirring drum is rotatably arranged on the mounting bracket, the transmission assembly is arranged in the mounting bracket and the transmission assembly is connected between the output end of the motor and the stirring drum.

[0008] Preferably, a hanging block is provided at the bottom of the cover plate, and the material frame is hung at the bottom of the hanging block.

[0009] Preferably, the lifting block is located on the convection path between the air inlet and the air outlet, and an air passage is opened between one end of the lifting block facing the air inlet and one end facing the air outlet, and an air guide plate is provided at one end of the air passage facing the air inlet.

[0010] Preferably, a lifting frame is provided at the bottom of the lifting block, the lifting frame is passed through from top to bottom, a slide groove is provided between the front and rear ends of the bottom of the lifting block, a slide rail is provided between the front and rear ends of the top of the lifting frame, the slide rails slide into the slide grooves respectively, and the material frame is fixedly connected to the bottom of the lifting frame.

[0011] Preferably, the lifting block is fixedly provided with a lifting rod, a screw rod is connected between the front end and the rear end of the lifting rod, the screw rod passes through the lifting frame and is threadedly connected to the lifting frame, and the rear end of the lifting rod is rotatably provided with a third synchronous wheel and a fourth synchronous wheel, the third synchronous wheel and the fourth synchronous wheel are distributed up and down, a second synchronous belt is tensioned between the third synchronous wheel and the fourth synchronous wheel, the third synchronous wheel is coaxially connected with the screw rod, a gear is coaxially connected with the fourth synchronous wheel, a support rod is uprightly provided at the bottom of the alkali washing tank, one side of the support rod is provided with a tooth surface, and the tooth surface of the support rod is meshed with the gear, when the gear rises and rotates, the screw rod controls the lifting frame and the material frame to move forward, and when the gear descends and rotates, the screw rod controls the lifting frame and the material frame to move backward.

[0012] Preferably, it also includes an alkaline washing circuit, which includes a power supply, the fan and the two motors connected in series.

[0013] Preferably, the alkaline washing circuit further comprises two groups of contact switches, and the two groups of contact switches are respectively connected in series between the fan and one of the motors and between the power supply and the other motor.

[0014] Preferably, the mounting bracket includes a cross bar and two vertical bars, the cross bar is horizontally arranged at the bottom of the cover plate, and the upper ends of the two vertical bars are respectively vertically connected to the front and rear ends of the cross bar, the transmission assembly includes a first rotating shaft, a second rotating shaft, a first bevel gear, a second bevel gear, a first synchronous wheel, a second synchronous wheel and a first synchronous belt, the upper end of the first rotating shaft is coaxially connected to the output end of the motor and the lower end extends into the cross bar of the mounting bracket, the second rotating shaft is rotatably arranged in the cross bar around a horizontal axis, the first bevel gear is sleeved on the lower end of the first rotating shaft, the second bevel gear is sleeved on the second rotating shaft, the first bevel gear is meshed with the second bevel gear, the first synchronous wheel and the second synchronous wheel are rotatably arranged in the vertical bar, the first synchronous wheel and the second synchronous wheel are distributed up and down, the first synchronous belt is tensioned between the first synchronous wheel and the second synchronous wheel, the first synchronous wheels in the two vertical bars are respectively coaxially connected to the two ends of the second rotating shaft, and the second synchronous wheels of the two vertical bars are connected to the two ends of the mixing drum.

[0015] Preferably, two stirring structures are provided, and the two stirring structures are mirror-imagedly arranged on the left and right sides of the material frame.

[0016] Preferably, the two mixing drums rotate from bottom to top on one side facing the material frame.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the process of alkali washing activated carbon by using the alkali washing device of the present invention, since the alkali washing tank is kept in a closed state during the alkali washing process and the fan is used for timely ventilation, it is possible to prevent the harmful gas generated during the alkali washing process from being directly released into the environment around the alkali washing tank, thereby reducing the harm to the operators, and the rotation of the mixing drum accelerates the flow of the alkali solution in the alkali washing tank, so that the activated carbon and the alkali solution fully react, thereby improving the quality of the activated carbon;

[0019] 2. Based on the setting of the alkaline washing circuit and the contact switch, the fan and the motor can be automatically started when the cover is closed, and automatically closed when the cover is opened. There is no need to actively control the motor and the fan to switch on and off, and the response speed of the fan and the motor is improved;

[0020] 3. The airflow is concentrated through the wind channel, so that the wind speed in the wind channel is faster, thereby reducing the pressure at the bottom of the cover plate, so that the top of the cover plate is pressed against the top of the alkali washing tank by the atmospheric pressure, and the stability of the cover plate covering the top of the alkali washing tank is improved;

[0021] 4. When the cover is raised, the material frame can automatically open the top and move forward, making it convenient for operators to take and place materials on the material frame. When the cover is lowered, the material frame can be reset and its top closed again to prevent the activated carbon from leaving the material frame during the alkali washing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the alkaline washing device in a closed state in an embodiment of the present application;

[0023] Figure 2 It is a structural schematic diagram of the alkaline washing tank in the embodiment of the present application;

[0024] Figure 3 Schematic diagram of the internal structure of the alkaline washing device in a closed state in an embodiment of the present application;

[0025] Figure 4 is a schematic diagram of the internal structure of the mounting bracket in an embodiment of the present application;

[0026] Figure 5 It is a schematic diagram of the partial structure of the alkali washing device in a closed state in an embodiment of the present application;

[0027] Figure 6 It is a schematic diagram of the principle of the alkali washing circuit in the embodiment of the present application;

[0028] Figure 7 is a front structural diagram of the alkali washing device in an open state in an embodiment of the present application;

[0029] Figure 8 It is a rear view structural diagram of the alkali washing device in the open state in the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. alkaline washing tank; 11. support rod; 12. cylinder; 2. cover plate; 21. material frame; 31. fan; 32. air inlet; 33. air outlet; 34. discharge pipe; 41. motor; 42. mounting bracket; 43. mixing drum; 51. first rotating shaft; 52. second rotating shaft; 53. first bevel gear; 54. second bevel gear; 55. first synchronous wheel; 56. second synchronous wheel; 57. first synchronous belt; 6. lifting block; 61. air passage; 62. air guide plate; 71. first contact; 72. second contact; 8. lifting frame; 81. slide rail; 9. lifting rod; 91. screw rod; 92. third synchronous wheel; 93. fourth synchronous wheel; 94. second synchronous belt; 95. gear. DETAILED DESCRIPTION

[0031] The following will be combined with the attached Figure 1 -Attached Figure 8 The present invention is further illustrated with reference to the accompanying drawings and embodiments.

[0032] This embodiment discloses an alkali washing device for high-purity activated carbon.

[0033] Reference Figures 1 to 3 The alkali washing device for high-purity activated carbon includes an alkali washing tank 1, a cover plate 2, a cylinder 12, a ventilation structure and a stirring structure of a material frame 21. Two cylinders 12 are provided. The two cylinders 12 are respectively arranged on the left and right sides of the alkali washing tank 1 and the telescopic ends are facing upward. The top of the alkali washing tank 1 is open. The cover plate 2 is arranged above the alkali washing tank 1, and the cover plate 2 is respectively connected to the telescopic ends of the two cylinders 12, so that the cylinder 12 can control the cover plate 2 to rise and fall relative to the alkali washing tank 1. When the cover plate 2 rises, the alkali washing tank 1 is in an open state, and when the cover plate 2 is lowered, the alkali washing tank 1 is adjusted to a closed state. The material frame 21 is arranged at the bottom of the cover plate 2, and the activated carbon to be alkali washed is placed in the material frame 21. When the cover plate 2 is raised, the staff can put the activated carbon into the material frame 21. When the cover plate 2 is lowered, the activated carbon in the material frame 21 is immersed in the alkali solution of the alkali washing tank 1 for alkali washing.

[0034] Reference Figure 1 and Figure 2 The ventilation structure includes a fan 31, an air inlet 32 ​​and an air outlet 33. The air inlet 32 ​​and the air outlet 33 are opened on the side wall of the alkali cleaning tank 1. The air inlet 32 ​​and the air outlet 33 both penetrate the side wall of the alkali cleaning tank 1. The heights of the air inlet 32 ​​and the air outlet 33 need to be higher than the liquid level of the alkali solution in the alkali cleaning tank 1. The fan 31 is arranged on the outer wall of the alkali cleaning tank 1 and connected to the air inlet 32. The outer wall of the alkali cleaning tank 1 is connected to a discharge pipe 34 at the air outlet 33. The discharge pipe 34 is connected to a gas treatment device for subsequent treatment of harmful gases generated during the alkali cleaning process.

[0035] Reference Figure 3 The stirring structure includes a motor 41, a mounting bracket 42, a transmission assembly and a stirring drum 43. The motor 41 is vertically arranged on the top of the cover plate 2 with the output end facing downward, the mounting bracket 42 is arranged at the bottom of the cover plate 2, the stirring drum 43 is rotatably arranged on the mounting bracket 42 and rotates around a horizontal axis, the stirring drum 43 and the material frame 21 are located at the same height, the transmission assembly is arranged in the mounting bracket 42 and the transmission assembly is connected between the output end of the motor 41 and the stirring drum 43, so that the motor 41 drives the stirring drum 43 to rotate through the transmission assembly.

[0036] Based on the above-mentioned alkali washing tank 1, cover plate 2, cylinder 12, material frame 21 ventilation structure and stirring structure, the alkali washing steps of the alkali washing device for high-purity activated carbon of the present invention are as follows:

[0037] S1: The cylinder 12 controls the cover plate 2 to rise, so that the alkali cleaning tank 1 is in an open state, and the material frame 21 moves upward away from the alkali cleaning tank 1;

[0038] S2: Put the activated carbon to be alkali-washed into the material frame 21;

[0039] S3: The cylinder 12 controls the cover plate 2 to descend until the cover plate 2 covers the opening at the top of the alkali washing tank 1, so that the alkali washing tank 1 is in a sealed state, and the activated carbon begins to be alkali washed;

[0040] S4: the motor 41 controls the stirring drum 43 to rotate, so that the stirring drum 43 stirs the alkali solution in the alkali washing tank 1, and at the same time the fan 31 is started, so that the fan 31 ventilates the gas in the alkali washing tank 1;

[0041] S5: After the alkali washing is completed, the cylinder 12 controls the cover plate 2 to rise again, so that the alkali washing tank 1 is in an open state again, and the material frame 21 is moved upward away from the alkali washing again. At this time, the activated carbon that has completed the alkali washing can be taken out from the material frame 21.

[0042] In the process of alkali washing activated carbon using the alkali washing device of the present invention, since the alkali washing tank 1 remains in a closed state during the alkali washing process and is ventilated in time by the fan 31, it is possible to avoid the harmful gases generated during the alkali washing process from being directly released into the environment around the alkali washing tank 1, thereby reducing the harm to the operators. In addition, the rotation of the stirring drum 43 accelerates the flow of the alkali solution in the alkali washing tank 1, thereby allowing the activated carbon to fully react with the alkali solution and improving the quality of the activated carbon.

[0043] Reference Figure 3 and Figure 4The mounting bracket 42 includes a cross bar and two vertical bars. The cross bar is horizontally arranged at the bottom of the cover plate 2. The upper ends of the two vertical bars are respectively vertically connected to the front and rear ends of the cross bar, so that the mounting bracket 42 is concave with the notch facing downward. The mixing drum 43 is rotatably arranged between the lower ends of the two vertical bars. The transmission assembly includes a first rotating shaft 51, a second rotating shaft 52, a first bevel gear 53, a second bevel gear 54, a first synchronous wheel 55, a second synchronous wheel 56 and a first synchronous belt 57, wherein the upper end of the first rotating shaft 51 is coaxially connected to the output end of the motor 41 and the lower end extends into the cross bar of the mounting bracket 42, the second rotating shaft 52 is rotatably arranged in the cross bar around a horizontal axis, the first bevel gear 53 is sleeved on the lower end of the first rotating shaft 51, the second bevel gear 54 is sleeved on the second rotating shaft 52, and the first bevel gear 5 3 is meshed with the second bevel gear 54, the first synchronous wheel 55 and the second synchronous wheel 56 are rotatably arranged in the two vertical rods of the mounting bracket 42, the first synchronous wheel 55 and the second synchronous wheel 56 are distributed up and down, the first synchronous belt 57 is stretched between the first synchronous wheel 55 and the second synchronous wheel 56, the first synchronous wheels 55 in the two vertical rods of the mounting bracket 42 are coaxially connected to the two ends of the second rotating shaft 52, and the second synchronous wheels 56 in the two vertical rods of the mounting bracket 42 are connected to the two ends of the mixing drum 43. Based on the setting of the above transmission assembly, when the motor 41 is started, the first rotating shaft 51 is first controlled to rotate, and the first rotating shaft 51 then drives the second rotating shaft 52 to rotate through the first bevel gear 53 and the second bevel gear 54, and the second rotating shaft 52 then drives the first synchronous wheels 55 at both ends thereof to rotate, and the two first synchronous wheels 55 then drive the two second synchronous wheels 56 to rotate respectively through the first synchronous belt 57, and finally the two second synchronous wheels 56 drive the mixing drum 43 to rotate, so that the motor 41 drives the mixing drum 43.

[0044] Reference Figure 3 There are two stirring structures, which are mirror-imaged on the left and right sides of the material frame 21 to improve the stirring ability of the alkali solution in the alkali washing tank 1. In particular, the two stirring drums 43 are rotated from bottom to top on one side of the material frame 21, with the purpose that the two stirring drums 43 form a water flow from bottom to top on the left and right sides of the material frame 21, and the two water flows work together to continuously lift the activated carbon in the material frame 21, so that the activated carbon in the material frame 21 is in an active state, and finally the activated carbon in the material frame 21 reacts more fully with the alkali solution in the alkali washing tank 1.

[0045] Reference Figure 3 and Figure 5A hanging block 6 is provided at the bottom of the cover plate 2, and a material frame 21 is hung at the bottom of the hanging block 6. When the cover plate 2 covers the top opening of the alkali washing tank 1, the setting of the hanging block 6 can ensure that the material frame 21 is lower than the liquid level in the alkali washing tank 1, so that the activated carbon in the material frame 21 can fully enter the alkali solution in the alkali washing tank 1. Furthermore, the lifting block 6 is located on the convection path between the air inlet 32 ​​and the air outlet 33, and an air passage 61 is provided between one end of the lifting block 6 facing the air inlet 32 ​​and the other end facing the air outlet 33, and an air guide plate 62 is provided at the end of the air passage 61 facing the air inlet 32. On the one hand, the opening of the air passage 61 is used to prevent the lifting block 6 from obstructing the airflow between the air inlet 32 ​​and the air outlet 33, and on the other hand, the airflow is concentratedly flowed through the air passage 61, so that the wind speed in the air passage 61 is faster, thereby reducing the pressure at the bottom of the cover plate 2, so that the top of the cover plate 2 is pressed against the top of the alkali washing tank 1 by the action of atmospheric pressure, thereby improving the stability of the cover plate 2 covering the top of the alkali washing tank 1.

[0046] Reference Figure 3 and Figure 6 The alkali washing device for high-purity activated carbon includes an alkali washing circuit, which includes a power supply, the above-mentioned fan 31 and the above-mentioned two motors 41 connected in series in sequence. The alkali washing circuit also includes two groups of contact switches, which are respectively connected in series between the fan 31 and one of the motors 41 and between the power supply and the other motor 41. Specifically, each group of contact switches includes a first contact 71 and a second contact 72, and the first contacts 71 of the two groups of contact switches are embedded in the bottom of the cover plate 2 at intervals on the left and right, and the second contacts 72 of the two groups of contact switches are embedded in the top of the alkali washing tank 1 at intervals on the left and right. When the cover plate 2 is covered on the top of the alkali washing tank 1, the first contacts 71 of the two groups of contact switches contact with the second contacts 72 one by one, so that the alkali washing circuit is connected, so that the fan 31 and the two motors 41 are started. When the cover plate 2 leaves the top of the alkali washing tank 1, the first contacts 71 of the two groups of contact switches are separated from the second contacts 72 one by one, so that the alkali washing circuit is powered off, so that the fan 31 and the two motors 41 are stopped. To sum up, based on the setting of the alkaline washing circuit and the contact switch, the fan 31 and the motor 41 can be automatically started as the cover 2 is closed, and automatically turned off as the cover 2 is opened. There is no need to actively control the motor 41 and the fan 31 to switch on and off, and the response speed of the fan 31 and the motor 41 is improved.

[0047] Reference Figure 5 , Figure 7 and Figure 8In order to facilitate the operator to take and place materials on the material frame 21, the present invention also makes the following improvements. A lifting frame 8 is provided at the bottom of the lifting block 6, and the lifting frame 8 is connected from top to bottom. The material frame 21 is suspended at the bottom of the lifting block 6 by being fixedly connected to the bottom of the lifting frame 8. The lifting frame 8 is slidably arranged at the bottom of the lifting block 6. Specifically, two slide grooves are provided between the front and rear ends of the bottom of the lifting block 6, and the slide grooves are T-shaped grooves. Two slide rails 81 are provided between the front and rear ends of the top of the lifting frame 8. The slide rails 81 are T-shaped rails. The two slide rails 81 slide into the two slide grooves respectively, so that the lifting frame 8 is slidably arranged at the bottom of the lifting block 6, thereby enabling the material frame 21 to slide forward and backward following the lifting frame 8. Further, the lifting block 6 is fixedly provided with a suspension rod 9, and the suspension rod 9 passes through the air passage 61 of the lifting block 6. A screw rod 91 is connected between the front and rear ends of the suspension rod 9, and the screw rod 91 passes through the lifting frame 8 and is threadedly connected to the lifting frame 8. The rear end of the suspension rod 9 is rotatably provided with a third synchronous wheel 92 and a fourth synchronous wheel 93, the third synchronous wheel 92 and the fourth synchronous wheel 93 are distributed up and down, a second synchronous belt 94 is tensioned between the third synchronous wheel 92 and the fourth synchronous wheel 93, and the third synchronous wheel 92 is coaxially connected with the screw rod 91. The rear end of the suspension rod 9 is also provided with a gear 95, the gear 95 is coaxially connected with the fourth synchronous wheel 93, and a support rod 11 is vertically provided at the bottom of the alkali washing tank 1, the support rod 11 is arranged opposite to the gear 95, and the side of the support rod 11 facing the gear 95 is set as a tooth surface, and the tooth surface of the support rod 11 is meshed with the gear 95. Based on the above arrangement, when the cylinder 12 controls the lifting and lowering of the cover plate 2, the gear 95 will rotate due to the meshing of the tooth surface of the support rod 11, and the gear 95 will then drive the fourth synchronous wheel 93, the third synchronous wheel 92 and the screw rod 91 to rotate in turn, and finally the screw rod 91 controls the lifting frame 8 and the material frame 21 to move forward and backward. In this embodiment, it is set that when the gear 95 rises and rotates, the screw rod 91 controls the hanging frame 8 and the material frame 21 to move forward, and when the gear 95 falls and rotates, the screw rod 91 controls the hanging frame 8 and the material frame 21 to move backward. Figure 7 and Figure 8 As shown, when the cover plate 2 is raised, the material frame 21 can automatically open the top and move forward, making it convenient for operators to take and place materials on the material frame 21. Figure 3 As shown, when the cover plate 2 is lowered, the material frame 21 can be reset and its top can be closed again to prevent the activated carbon from leaving the material frame 21 during the alkaline washing process.

[0048] The above are all preferred embodiments of the present invention, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An alkali washing device for high-purity activated carbon, characterized in that: The invention comprises an alkali cleaning tank (1), a cover plate (2), a material frame (21), a ventilation structure and a stirring structure. The alkali cleaning tank (1) has an opening at the top. The cover plate (2) is arranged at the top of the alkali cleaning tank (1) in a lifting manner. The material frame (21) is arranged at the bottom of the cover plate (2). The ventilation structure comprises a fan (31), an air inlet (32) and an air outlet (33). The air inlet (32) and the air outlet (33) are opened on the side wall of the alkali cleaning tank (1). The fan (31) is arranged at the air inlet (32). The air outlet (33) is arranged at the bottom of the cover plate (2). The air port (33) is connected to a discharge pipe (34); the stirring structure comprises a motor (41), a mounting bracket (42), a transmission assembly and a stirring drum (43); the motor (41) is arranged on the top of the cover plate (2); the mounting bracket (42) is arranged on the bottom of the cover plate (2); the stirring drum (43) is rotatably arranged on the mounting bracket (42); the transmission assembly is arranged in the mounting bracket (42) and is connected between the output end of the motor (41) and the stirring drum (43); A hanging block (6) is provided at the bottom of the cover plate (2), and the material frame (21) is hung at the bottom of the hanging block (6); The hanging block (6) is located on the convection path between the air inlet (32) and the air outlet (33); an air passage (61) is provided between one end of the hanging block (6) facing the air inlet (32) and one end facing the air outlet (33); and an air guide plate (62) is provided at one end of the air passage (61) facing the air inlet (32); A hanging frame (8) is provided at the bottom of the hanging block (6), the hanging frame (8) is connected from top to bottom, a slide groove is provided between the front and rear ends of the bottom of the hanging block (6), a slide rail (81) is provided between the front and rear ends of the top of the hanging frame (8), the slide rail (81) slides into the slide groove respectively, and the material frame (21) is fixedly connected to the bottom of the hanging frame (8); The hoisting block (6) is fixedly provided with a hoisting rod (9), a screw rod (91) is connected between the front end and the rear end of the hoisting rod (9), the screw rod (91) passes through the hoisting frame (8) and is threadedly connected to the hoisting frame (8), a third synchronous wheel (92) and a fourth synchronous wheel (93) are rotatably provided at the rear end of the hoisting rod (9), the third synchronous wheel (92) and the fourth synchronous wheel (93) are distributed up and down, a second synchronous belt (94) is tensioned between the third synchronous wheel (92) and the fourth synchronous wheel (93), the third synchronous wheel (92) is coaxially connected to the screw rod (91), A gear (95) is provided at the rear end of the suspension rod (9), and the gear (95) is coaxially connected to the fourth synchronous wheel (93). A support rod (11) is vertically provided at the bottom of the alkali washing tank (1), and one side of the support rod (11) is provided with a tooth surface, and the tooth surface of the support rod (11) meshes with the gear (95). When the gear (95) rises and rotates, the screw rod (91) controls the suspension frame (8) and the material frame (21) to move forward; when the gear (95) falls and rotates, the screw rod (91) controls the suspension frame (8) and the material frame (21) to move backward.

2. The alkali washing device for high-purity activated carbon according to claim 1, characterized in that: It also comprises an alkali washing circuit, which comprises a power supply, the fan (31) and two motors (41) connected in series in sequence.

3. The alkali washing device for high-purity activated carbon according to claim 2, characterized in that: The alkali washing circuit also includes two groups of contact switches, and the two groups of contact switches are respectively connected in series between the fan (31) and one of the motors (41) and between the power supply and the other motor (41).

4. The alkali washing device for high-purity activated carbon according to claim 1, characterized in that: The mounting bracket (42) comprises a cross bar and two vertical bars, wherein the cross bar is horizontally arranged at the bottom of the cover plate (2), and the upper ends of the two vertical bars are respectively vertically connected to the front and rear ends of the cross bar, and the transmission assembly comprises a first rotating shaft (51), a second rotating shaft (52), a first bevel gear (53), a second bevel gear (54), a first synchronous wheel (55), a second synchronous wheel (56) and a first synchronous belt (57), wherein the upper end of the first rotating shaft (51) is coaxially connected to the output end of the motor (41) and the lower end extends into the cross bar of the mounting bracket (42), the second rotating shaft (52) is rotatably arranged in the cross bar around a horizontal axis, and the first bevel gear (53) is sleeved on the first rotating shaft (51). The lower end of the shaft (51), the second bevel gear (54) is sleeved on the second rotating shaft (52), the first bevel gear (53) is meshed with the second bevel gear (54), the first synchronous wheel (55) and the second synchronous wheel (56) are rotatably arranged in the vertical rod, the first synchronous wheel (55) and the second synchronous wheel (56) are distributed up and down, the first synchronous belt (57) is tensioned between the first synchronous wheel (55) and the second synchronous wheel (56), the first synchronous wheels (55) in the two vertical rods are coaxially connected to the two ends of the second rotating shaft (52), and the second synchronous wheels (56) of the two vertical rods are connected to the two ends of the mixing drum (43).

5. The alkali washing device for high-purity activated carbon according to claim 1, characterized in that: Two stirring structures are provided, and the two stirring structures are arranged in mirror image on the left and right sides of the material frame (21).

6. The alkali washing device for high-purity activated carbon according to claim 5, characterized in that: The two mixing drums (43) rotate from bottom to top on the side facing the material frame (21).

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