Industrial waste salt thermal desorption treatment device and method

Abstract

The invention relates to the technical field of waste salt treatment, and discloses an industrial waste salt thermal desorption treatment device and method.The industrial waste salt thermal desorption treatment device comprises a barrel with the two ends being open, and further comprises two gas outlet pipes which are horizontally installed on the surface of the barrel in a communicated mode; the number of the detection control assemblies is two, the two detection control assemblies are installed on the two gas outlet pipes correspondingly, and the detection control assemblies are used for detecting whether gas flows in the gas outlet pipes or not; and the treatment assembly is arranged in the barrel body, and the treatment assembly is used for treating the industrial waste salt. According to the invention, the industrial waste salt is automatically treated, different pollutants are decomposed according to different temperature intervals during treatment, volatile organic compounds are removed in a low-temperature section, and refractory pollutants are treated in a high-temperature section, so that the treatment efficiency of the industrial waste salt is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste salt treatment, and in particular to a device and method for thermal desorption treatment of industrial waste salt. Background Art

[0002] Currently, industrial waste salt treatment is to remove harmful substances, heavy metals or other pollutants in waste salt from salt-based substances through thermal desorption. Thermal desorption treatment technology is a common waste treatment method that uses high-temperature heating to convert pollutants in waste salt into gas, thereby separating and removing these harmful substances.

[0003] For example, a waste salt thermal desorption treatment equipment disclosed in the patent with announcement number CN215143275U can treat industrial waste salt, but it does not have the function of multi-stage segmented thermal desorption treatment, which not only causes the subsequent gas to be separated, but also the treatment efficiency of industrial waste salt is low. Therefore, it is urgent to design a thermal desorption treatment device for industrial waste salt. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a thermal desorption treatment device and method for industrial waste salt.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An industrial waste salt thermal desorption treatment device comprises a barrel body, both ends of which are open, and further comprises: There are two air outlet pipes, both of which are horizontally connected and installed on the surface of the barrel; There are two detection control components, which are respectively installed on two outlet pipes, and are used to detect whether there is gas flow inside the outlet pipes; A processing component is arranged inside the barrel and is used to process industrial waste salt; A driving material discharge component is arranged on the surface of the barrel body and is also connected to the processing component. The driving material discharge component is used for intermittently discharge industrial waste salt inside the processing component.

[0006] As a further technical solution of the present invention, the processing component includes: a first insulation sleeve, the first insulation sleeve is fixedly sleeved on the top of the inner wall of the barrel body, a low-temperature heating sleeve is fixedly installed on the bottom of the first insulation sleeve, a second insulation sleeve is fixedly installed on the bottom of the low-temperature heating sleeve, and a high-temperature heating sleeve is fixedly installed on the bottom of the second insulation sleeve, and the low-temperature heating sleeve, the second insulation sleeve and the high-temperature heating sleeve are all sequentially sleeved on the inner wall of the barrel body, and two air outlet pipes are respectively connected to the interior of the low-temperature heating sleeve and the high-temperature heating sleeve.

[0007] As a further technical solution of the present invention, a first valve disc is rotatably installed on the bottom end of the inner wall of the first insulation sleeve, a second valve disc is rotatably installed on the bottom end of the inner wall of the low-temperature heating sleeve, a third valve disc is rotatably installed on the bottom end of the inner wall of the second insulation sleeve, and a fourth valve disc is rotatably installed on the bottom end of the inner wall of the high-temperature heating sleeve.

[0008] As a further technical solution of the present invention, the detection and control component includes: a limit plate, which is horizontally fixed on the surface of the barrel body, a shaft is vertically fixed on the top of the limit plate, and a rotating shaft is rotatably installed on the top of the shaft, a fan blade is rotatably installed inside the air outlet pipe, the top of the rotating shaft is fixedly installed at the center of the bottom of the fan blade, and the surface of the rotating shaft is rotatably installed on the inner wall of the air outlet pipe.

[0009] As a further technical solution of the present invention, a fixed disk is fixedly sleeved on the surface of the rotating shaft, a sliding disk is slidably sleeved on the surface of the shaft rod through a spline, and an annular groove is opened on the top of the sliding disk, and a plurality of sliding blocks evenly distributed in an annular shape are slidably installed inside the annular groove, a second hinged rod is rotatably installed on the top of each sliding block, a rectangular block is rotatably installed on the top of each second hinged rod, and a first hinged rod is rotatably installed on the side of each rectangular block, and the top of each first hinged rod is rotatably installed on the bottom of the fixed disk.

[0010] As a further technical solution of the present invention, a straight spring is sleeved on the surface of the shaft rod, and the two ends of the straight spring are respectively against the opposite surfaces of the fixed plate and the sliding plate, an L-shaped copper sheet is fixedly installed on the surface of the exhaust pipe, and a copper block is fixedly installed on the surface of the sliding plate.

[0011] As a further technical solution of the present invention, the driving unloading component includes: a missing gear, there are two missing gears, both of which are rotatably installed on the surface of the barrel body, and the contact surface between the missing gear and the barrel body is a rough surface, and each missing gear has two first gears meshing on the opposite sides, and the four first gears are rotatably installed on the surface of the barrel body.

[0012] As a further technical solution of the present invention, a belt is rotatably arranged on the side of each first gear, a large pulley and a small pulley are arranged at both ends of each belt, and the four large pulleys are respectively fixedly installed at the centers of the end faces of the four first gears, and the four small pulleys are rotatably installed on the surface of the barrel body, and the centers of the four small pulley end faces from top to bottom are respectively fixedly installed on the surfaces of the first valve disc, the second valve disc, the third valve disc and the fourth valve disc through connecting shafts.

[0013] As a further technical solution of the present invention, two motor brackets are also installed on the surface of the barrel body, each motor bracket is installed with a driving motor, and the output shafts of the two driving motors are respectively installed at the centers of the two gear-missing end faces, and the corresponding L-shaped copper sheets and copper blocks are electrically connected to the driving motors.

[0014] A method for using an industrial waste salt thermal desorption treatment device comprises the following steps: S1: firstly, the industrial waste salt to be treated is placed on the top of the first valve disc inside the first insulation sleeve; S2: Then start the corresponding driving motor to drive the missing gear to rotate one circle, the missing gear rotation drives the corresponding first gear rotation, the first gear rotation drives the large pulley rotation, the large pulley rotation drives the belt rotation, the belt rotation drives the small pulley rotation. It should be noted that the large pulley rotates 180 degrees and the small pulley rotates one circle. At this time, the small pulley rotation will cause the second valve disc to rotate. If there is industrial waste salt on the second valve disc, the industrial waste salt on the second valve disc will fall onto the third valve disc inside the second insulation sleeve. When the missing gear rotates to mesh with another first gear, the corresponding small pulley rotation will drive the first valve disc to rotate, and further the industrial waste salt on the first valve disc can fall onto the second valve disc. S3: Then, the low-temperature insulation sleeve is heated to remove volatile organic matter in the low-temperature section. After the volatile organic matter is converted into gas, it will be collected after passing through the corresponding air outlet pipe. When gas passes through the air outlet pipe, it will drive the fan blades to rotate, and the rotation of the fan blades drives the rotation of the rotating shaft. The rotation of the rotating shaft drives the fixed disk to rotate. The rotation of the fixed disk drives the first hinged rod, the rectangular block and the second hinged rod to rotate. Due to the effect of centrifugal force, the rectangular block will also move away from the shaft during rotation. The movement of the rectangular block will drive the sliding plate to move in the vertical direction. The movement of the sliding plate will drive the copper block and the L-shaped copper plate to separate. When the volatile organic matter is evaporated by heating the industrial waste salt in the low-temperature section, the fan blades will stop rotating, and the elastic force generated by the straight spring will reset the sliding plate to achieve contact between the L-shaped copper sheet and the copper block. At this time, the corresponding drive motor will automatically start once at a fixed time. The combination of the L-shaped copper sheet and the copper block is equivalent to a touch switch that can be timed. In summary, the industrial waste salt inside the low-temperature heating sleeve will fall into the second insulation sleeve. S4: When the industrial waste salt falls to the top of the third valve disc, another drive motor is started and the fourth valve disc will rotate first. If there is industrial waste salt treated with high temperature on the fourth valve disc, it will fall into the collection box under the barrel. After the fourth valve disc rotates one circle, the third valve disc will continue to rotate one circle to realize that the industrial waste salt temporarily stored in the second insulation sleeve falls into the high-temperature heating sleeve for heating. The high-temperature section treats the difficult-to-degrade pollutants. When the difficult-to-degrade pollutants in the high-temperature heating sleeve are vaporized, they are released from the corresponding air outlet pipe. The rotation of the fan blades drives the L-shaped copper sheet and the copper block to separate and then contact, so as to realize the timed start of the drive motor.

[0015] The beneficial effects of the present invention are: First, the present invention realizes automatic treatment of industrial waste salt by setting up the detection control component, the processing component and the driving unloading component, and decomposes different pollutants according to different temperature ranges during treatment, removes volatile organic matter in the low temperature section, and treats difficult-to-degrade pollutants in the high temperature section, thereby helping to improve the efficiency of industrial waste salt treatment; Secondly, the present invention, through the setting of the detection control component and the drive unloading component, can collect the pollutants generated by industrial waste salt separately, avoid energy waste and cross interference of pollutants, and thus improve the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a thermal desorption treatment device for industrial waste salt proposed by the present invention; Figure 2 for Figure 1 A magnified schematic diagram of part A; Figure 3 This is a schematic diagram of the bottom-up structure of a thermal desorption treatment device for industrial waste salt proposed by the present invention; Figure 4 for Figure 3 A magnified schematic diagram of part B; Figure 5 This is a schematic diagram of the cross-sectional structure of a barrel of an industrial waste salt thermal desorption treatment device proposed by the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of an outlet pipe of an industrial waste salt thermal desorption treatment device proposed by the present invention; Figure 7 This is a schematic diagram of the internal structure of a barrel of an industrial waste salt thermal desorption treatment device proposed by the present invention; Figure 8 This is a schematic diagram of the missing gears and their connection structure of an industrial waste salt thermal desorption treatment device proposed by the present invention.

[0017] In the figure: 1. barrel body; 2. air outlet pipe; 3. first insulation sleeve; 4. low-temperature heating sleeve; 5. second insulation sleeve; 6. high-temperature heating sleeve; 7. first valve disc; 8. second valve disc; 9. third valve disc; 10. fourth valve disc; 11. sliding disc; 12. L-shaped copper sheet; 13. copper block; 14. limit plate; 15. shaft rod; 16. straight spring; 17. drive motor; 18. missing gear; 19. first gear; 20. belt; 21. large pulley; 22. small pulley; 23. fan blade; 24. fixed disc; 25. annular groove; 26. first hinge rod; 27. second hinge rod; 28. rectangular block; 29. ​​rotating shaft. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] Please see attached Figure 1 -Attached Figure 8 , a thermal desorption treatment device for industrial waste salt, comprising a barrel body 1, both ends of which are open, and further comprising: an air outlet pipe 2, a detection control component, a processing component and a driving and unloading component, wherein there are two air outlet pipes 2, and the two air outlet pipes 2 are horizontally connected and installed on the surface of the barrel body 1, there are two detection control components, and the two detection control components are respectively installed on the two air outlet pipes 2, and the detection control component is used to detect whether there is gas flow inside the air outlet pipe 2, the processing component is arranged inside the barrel body 1, and the processing component is used to process the industrial waste salt, the driving and unloading component is arranged on the surface of the barrel body 1, and the driving and unloading component is also connected to the processing component, and the driving and unloading component is used to make the industrial waste salt inside the processing component to be unloaded intermittently; As described above, industrial waste salt can be automatically treated, and different pollutants can be decomposed according to different temperature ranges during treatment. Volatile organic compounds can be removed in the low temperature section, and difficult-to-degrade pollutants can be treated in the high temperature section.

[0021] Please see attached Figure 2 -Attached Figure 8 In a preferred embodiment, the processing component includes: a first insulation sleeve 3, the first insulation sleeve 3 is fixedly sleeved on the top of the inner wall of the barrel body 1, a low-temperature heating sleeve 4 is fixedly installed on the bottom of the first insulation sleeve 3, a second insulation sleeve 5 is fixedly installed on the bottom of the low-temperature heating sleeve 4, a high-temperature heating sleeve 6 is fixedly installed on the bottom of the second insulation sleeve 5, and the low-temperature heating sleeve 4, the second insulation sleeve 5 and the high-temperature heating sleeve 6 are sequentially sleeved on the inner wall of the barrel body 1, two air outlet pipes 2 are respectively connected to the inside of the low-temperature heating sleeve 4 and the high-temperature heating sleeve 6, a first valve disc 7 is rotatably installed on the bottom end of the inner wall of the first insulation sleeve 3, a second valve disc 8 is rotatably installed on the bottom end of the inner wall of the low-temperature heating sleeve 4, a third valve disc 9 is rotatably installed on the bottom end of the inner wall of the second insulation sleeve 5, and a fourth valve disc 10 is rotatably installed on the bottom end of the inner wall of the high-temperature heating sleeve 6; Specifically, the low-temperature heating jacket 4 is used for preliminary treatment of the industrial waste salt, while the high-temperature heating jacket 6 is used for further treatment of the industrial waste salt.

[0022] Please see attached Figure 1 -Attached Figure 8In a preferred embodiment, the detection and control component includes: a limit plate 14, the limit plate 14 is horizontally fixedly installed on the surface of the barrel body 1, a shaft 15 is vertically fixedly installed on the top of the limit plate 14, and a rotating shaft 29 is rotatably installed on the top of the shaft 15, a fan blade 23 is rotatably installed inside the outlet pipe 2, the top of the rotating shaft 29 is fixedly installed at the bottom center of the fan blade 23, and the surface of the rotating shaft 29 is rotatably installed in the inner wall of the outlet pipe 2, a fixed disk 24 is fixedly sleeved on the surface of the rotating shaft 29, a sliding disk 11 is slidably sleeved on the surface of the shaft 15 through a spline, and an annular groove 25 is opened on the top of the sliding disk 11, and the annular groove 25 is opened on the top of the sliding disk 11. A plurality of slide blocks evenly distributed in an annular shape are slidably installed inside the shaped groove 25, a second hinge rod 27 is rotatably installed on the top of each slide block, a rectangular block 28 is rotatably installed on the top of each second hinge rod 27, and a first hinge rod 26 is rotatably installed on the side of each rectangular block 28, and the top of each first hinge rod 26 is rotatably installed on the bottom of the fixed plate 24, a straight spring 16 is sleeved on the surface of the shaft rod 15, and the two ends of the straight spring 16 are respectively against the opposite surfaces of the fixed plate 24 and the sliding plate 11, an L-shaped copper sheet 12 is fixedly installed on the surface of the outlet pipe 2, and a copper block 13 is fixedly installed on the surface of the sliding plate 11; Preferably, the fan blades 23 will rotate when the industrial waste salt in the low temperature section or the high temperature section is just beginning to be processed, and the fan blades 23 will stop rotating after the industrial waste salt in the low temperature section or the high temperature section is processed, and further the corresponding drive motor 17 will start to drive the industrial waste salt to be discharged.

[0023] Please see attached Figure 2 -Attached Figure 8 In a preferred embodiment, the driving unloading component includes: a missing gear 18, there are two missing gears 18, the two missing gears 18 are rotatably mounted on the surface of the barrel body 1, and the contact surface between the missing gear 18 and the barrel body 1 is a rough surface, and the opposite sides of each missing gear 18 are meshed with two first gears 19, and the four first gears 19 are rotatably mounted on the surface of the barrel body 1, and a belt 20 is rotatably arranged on the side of each first gear 19, and a large pulley 21 and a small pulley 22 are arranged at both ends of each belt 20, and the four large pulleys 21 are respectively fixedly mounted at the end centers of the four first gears 19, and the four small pulleys 22 are rotatably mounted on the surface of the barrel body 1, and the end centers of the four small pulleys 22 from top to bottom are respectively and sequentially fixedly mounted on the surfaces of the first valve disc 7, the second valve disc 8, the third valve disc 9 and the fourth valve disc 10 through connecting shafts; Furthermore, after the industrial waste salt treatment inside the low-temperature heating jacket 4 and the high-temperature heating jacket 6 is completed, the industrial waste salt inside the four compartments (the first insulation jacket 3, the low-temperature heating jacket 4, the second insulation jacket 5 and the high-temperature heating jacket 6) can be automatically discharged in sequence.

[0024] Please see attached Figure 1 -Attached Figure 4In a preferred embodiment, two motor brackets are also installed on the surface of the barrel body 1, each motor bracket is installed with a drive motor 17, and the output shafts of the two drive motors 17 are respectively installed at the center of the end faces of the two missing gears 18, and the corresponding L-shaped copper sheets 12 and copper blocks 13 are electrically connected to the drive motors 17.

[0025] The working principle of the present invention is as follows: firstly, the industrial waste salt to be treated is placed on the top of the first valve disc 7 inside the first insulation sleeve 3; Then start the corresponding driving motor 17 to drive the missing gear 18 to rotate one circle, the missing gear 18 rotates to drive the corresponding first gear 19 to rotate, the first gear 19 rotates to drive the large pulley 21 to rotate, the large pulley 21 rotates to drive the belt 20 to rotate, the belt 20 rotates to drive the small pulley 22 to rotate. It should be noted that the small pulley 22 rotates one circle when the large pulley rotates 180 degrees. At this time, the rotation of the small pulley 22 will cause the second valve disc 8 to rotate. If there is industrial waste salt on the second valve disc 8, the industrial waste salt on the second valve disc 8 will fall onto the third valve disc 9 inside the second insulation sleeve 5. When the missing gear 18 rotates to mesh with the other first gear 19, it can be seen from the above that the corresponding small pulley 22 rotates to drive the first valve disc 7 to rotate, and further the industrial waste salt on the first valve disc 7 can fall onto the second valve disc 8. Then, the low-temperature insulation sleeve is heated to remove volatile organic compounds in the low-temperature section. After the volatile organic compounds are converted into gas, they will pass through the corresponding gas outlet pipe 2 and be collected. When gas passes through the gas outlet pipe 2, the fan blades 23 will be driven to rotate, and the rotation of the fan blades 23 will drive the rotation of the shaft 29. The rotation of the shaft 29 will drive the fixed plate 24 to rotate. The rotation of the fixed plate 24 will drive the first hinge rod 26, the rectangular block 28 and the second hinge rod 27 to rotate. Due to the effect of centrifugal force, the rectangular block 28 will also move away from the shaft rod 15 when rotating. The movement of the rectangular block 28 will drive the sliding plate 1 1 moves in the vertical direction, and the movement of the sliding plate 11 will drive the copper block 13 and the L-shaped copper plate to separate. When the volatile organic matter is evaporated by heating the industrial waste salt in the low temperature section, the fan blade 23 will stop rotating, and the elastic force generated by the straight spring 16 will reset the sliding plate 11 to achieve the contact between the L-shaped copper sheet 12 and the copper block 13. At this time, the corresponding driving motor 17 will automatically start once. It should be noted that the combination of the L-shaped copper sheet 12 and the copper block 13 is equivalent to a touch switch that can be timed. In summary, the industrial waste salt inside the low-temperature heating sleeve 4 will fall into the second insulation sleeve 5; When the industrial waste salt falls to the top of the third valve disc 9, another drive motor 17 is started. In summary, the fourth valve disc 10 will rotate first. If there is industrial waste salt treated with high temperature on the fourth valve disc 10, it will fall into the collection box under the barrel 1. After the fourth valve disc 10 rotates one circle, the third valve disc 9 will continue to rotate one circle to realize that the industrial waste salt temporarily stored in the second insulation sleeve 5 falls into the high-temperature heating sleeve 6 for heating, and the high-temperature section treats the difficult-to-degrade pollutants. In summary, in the same way, when the difficult-to-degrade pollutants in the high-temperature heating sleeve 6 are vaporized and dispersed from the corresponding air outlet pipe 2, the fan blades 23 rotate to drive the L-shaped copper sheet 12 and the copper block 13 to separate and then contact, so as to realize the timed start of the drive motor 17 once; In summary, the subsequent drive unloading component can be automatically started, and the industrial waste salt can be further automatically treated. During the treatment, different pollutants are decomposed according to different temperature ranges. Volatile organic matter is removed in the low-temperature section, and difficult-to-degrade pollutants are treated in the high-temperature section, thereby improving the use effect of the equipment.

[0026] 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 thermal desorption treatment device for industrial waste salt, comprising a barrel (1), wherein both ends of the barrel (1) are open, and characterized in that: Also includes: An air outlet pipe (2), wherein there are two air outlet pipes (2), and the two air outlet pipes (2) are both horizontally connected and installed on the surface of the barrel body (1); A detection control component, wherein there are two detection control components, the two detection control components are respectively installed on the two air outlet pipes (2), and the detection control components are used to detect whether there is gas flow inside the air outlet pipe (2); A processing component, the processing component is arranged inside the barrel (1), and the processing component is used to process industrial waste salt; A driven material discharge component is arranged on the surface of the barrel (1), and the driven material discharge component is also connected to the processing component, and the driven material discharge component is used to discharge the industrial waste salt inside the processing component intermittently.

2. The thermal desorption treatment device for industrial waste salt according to claim 1, characterized in that: The processing assembly comprises: a first thermal insulation sleeve (3), the first thermal insulation sleeve (3) is fixedly sleeved on the top of the inner wall of the barrel body (1), a low-temperature heating sleeve (4) is fixedly installed on the bottom of the first thermal insulation sleeve (3), a second thermal insulation sleeve (5) is fixedly installed on the bottom of the low-temperature heating sleeve (4), a high-temperature heating sleeve (6) is fixedly installed on the bottom of the second thermal insulation sleeve (5), and the low-temperature heating sleeve (4), the second thermal insulation sleeve (5) and the high-temperature heating sleeve (6) are all sleeved on the inner wall of the barrel body (1) in sequence, and the two air outlet pipes (2) are respectively connected to the inside of the low-temperature heating sleeve (4) and the high-temperature heating sleeve (6).

3. The thermal desorption treatment device for industrial waste salt according to claim 2, characterized in that: A first valve disc (7) is rotatably mounted on the bottom end of the inner wall of the first thermal insulation sleeve (3), a second valve disc (8) is rotatably mounted on the bottom end of the inner wall of the low-temperature heating sleeve (4), a third valve disc (9) is rotatably mounted on the bottom end of the inner wall of the second thermal insulation sleeve (5), and a fourth valve disc (10) is rotatably mounted on the bottom end of the inner wall of the high-temperature heating sleeve (6).

4. The thermal desorption treatment device for industrial waste salt according to claim 3, characterized in that: The detection and control component comprises: a limit plate (14), the limit plate (14) being fixedly mounted horizontally on the surface of the barrel body (1), a shaft (15) being fixedly mounted vertically on the top of the limit plate (14), and a rotating shaft (29) being rotatably mounted on the top of the shaft (15), a fan blade (23) being rotatably mounted inside the air outlet pipe (2), the top end of the rotating shaft (29) being fixedly mounted at the bottom center of the fan blade (23), and the surface of the rotating shaft (29) being rotatably mounted inside the inner wall of the air outlet pipe (2).

5. The thermal desorption treatment device for industrial waste salt according to claim 4, characterized in that: The surface of the rotating shaft (29) is fixedly sleeved with a fixed disk (24), the surface of the shaft (15) is slidably sleeved with a sliding disk (11) via a spline, and an annular groove (25) is provided on the top of the sliding disk (11), and a plurality of sliding blocks evenly distributed in an annular shape are slidably mounted inside the annular groove (25), and a second hinged rod (27) is rotatably mounted on the top of each sliding block, and a rectangular block (28) is rotatably mounted on the top of each second hinged rod (27), and a first hinged rod (26) is rotatably mounted on the side of each rectangular block (28), and the top of each first hinged rod (26) is rotatably mounted on the bottom of the fixed disk (24).

6. The thermal desorption treatment device for industrial waste salt according to claim 5, characterized in that: A straight spring (16) is sleeved on the surface of the shaft rod (15), and two ends of the straight spring (16) are respectively against the opposite surfaces of the fixed plate (24) and the sliding plate (11), an L-shaped copper sheet (12) is fixedly mounted on the surface of the air outlet pipe (2), and a copper block (13) is fixedly mounted on the surface of the sliding plate (11).

7. The thermal desorption treatment device for industrial waste salt according to claim 6, characterized in that: The driving unloading assembly comprises: a missing gear (18), wherein there are two missing gears (18), both of which are rotatably mounted on the surface of the barrel body (1), and the contact surface between the missing gear (18) and the barrel body (1) is a rough surface, and each of the opposite side surfaces of the missing gear (18) is meshed with two first gears (19), and the four first gears (19) are rotatably mounted on the surface of the barrel body (1).

8. The thermal desorption treatment device for industrial waste salt according to claim 7, characterized in that: A belt (20) is rotatably arranged on the side of each first gear (19), and a large pulley (21) and a small pulley (22) are arranged at both ends of each belt (20), and the four large pulleys (21) are respectively fixedly mounted at the end faces of the four first gears (19) at their centers, and the four small pulleys (22) are rotatably mounted on the surface of the barrel body (1), and the end faces of the four small pulleys (22) from top to bottom are respectively and sequentially fixedly mounted on the surfaces of the first valve disc (7), the second valve disc (8), the third valve disc (9), and the fourth valve disc (10) at their centers through connecting shafts.

9. The thermal desorption treatment device for industrial waste salt according to claim 8, characterized in that: Two motor brackets are also installed on the surface of the barrel body (1), and a driving motor (17) is installed on each motor bracket. The output shafts of the two driving motors (17) are respectively installed at the center of the end faces of the two missing gears (18), and the corresponding L-shaped copper sheets (12) and copper blocks (13) are electrically connected to the driving motors (17).

10. The method for using the thermal desorption treatment device for industrial waste salt according to claim 9, characterized in that: The following steps are involved: S1: firstly, placing the industrial waste salt to be treated on the top of the first valve disc (7) inside the first insulation sleeve (3); S2: Then the corresponding driving motor (17) is started to drive the missing gear (18) to rotate one circle. The rotation of the missing gear (18) drives the corresponding first gear (19) to rotate. The rotation of the first gear (19) drives the large pulley (21) to rotate. The rotation of the large pulley (21) drives the belt (20) to rotate. The rotation of the belt (20) drives the small pulley (22) to rotate. It should be noted that when the large pulley rotates 180 degrees, the small pulley (22) will rotate one circle. At this time, the rotation of the small pulley (22) will cause the second valve disc (8) to rotate. If there is industrial waste salt on the second valve disc (8), the industrial waste salt on the second valve disc (8) will fall onto the third valve disc (9) inside the second insulation sleeve (5). When the missing gear (18) rotates to mesh with the other first gear (19), the corresponding small pulley (22) will drive the first valve disc (7) to rotate, and further, the industrial waste salt on the first valve disc (7) can fall onto the second valve disc (8); S3: Then, the low-temperature insulation sleeve is heated to remove volatile organic matter in the low-temperature section. After the volatile organic matter is converted into gas, it will pass through the corresponding gas outlet pipe (2) and be collected. When gas passes through the gas outlet pipe (2), it will drive the fan blade (23) to rotate. The rotation of the fan blade (23) drives the rotation of the rotating shaft (29). The rotation of the rotating shaft (29) drives the fixed plate (24) to rotate. The rotation of the fixed plate (24) drives the first hinged rod (26), the rectangular block (28) and the second hinged rod (27) to rotate. Due to the effect of centrifugal force, the rectangular block (28) will also move in a direction away from the shaft (15) during rotation. The rectangular block (28) moves The sliding plate (11) will be driven to move in the vertical direction. The movement of the sliding plate (11) will drive the copper block (13) and the L-shaped copper plate to separate. When the volatile organic matter in the industrial waste salt is heated in the low temperature section and evaporated, the fan blade (23) will stop rotating. The elastic force generated by the straight spring (16) will reset the sliding plate (11) to achieve contact between the L-shaped copper sheet (12) and the copper block (13). At this time, the corresponding driving motor (17) will automatically start once at a fixed time. The combination of the L-shaped copper sheet (12) and the copper block (13) is equivalent to a touch switch that can be timed. In summary, the industrial waste salt inside the low-temperature heating sleeve (4) will fall into the second insulation sleeve (5). S4: When the industrial waste salt falls to the top of the third valve disc (9), another drive motor (17) is started, and the fourth valve disc (10) will rotate first. If there is industrial waste salt treated at high temperature on the fourth valve disc (10), it will fall into the collection box below the barrel (1). After the fourth valve disc (10) rotates one circle, the third valve disc (9) will continue to rotate one circle, so that the industrial waste salt temporarily stored in the second insulation sleeve (5) falls into the high-temperature heating sleeve (6) for heating, and the high-temperature section treats the difficult-to-degrade pollutants. When the difficult-to-degrade pollutants in the high-temperature heating sleeve (6) are vaporized and dispersed from the corresponding air outlet pipe (2), the fan blade (23) rotates to drive the L-shaped copper sheet (12) and the copper block (13) to separate and then contact, so as to start the drive motor (17) once at a fixed time.

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