A tank-type thermal desorption device based on thermal desorption agent filling

By designing a tank-type thermal desorption device, the combination of the rotating rod and the stirring plate can achieve rapid and uniform mixing of thermal desorption additives in the soil, solving the problem of uneven mixing of thermal desorption additives in the prior art and improving the organic matter removal effect.

CN116967267BActive Publication Date: 2025-02-28LINYI HUAYE BIOLOGICAL PROD CO LTD
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Patent Information

Application Number
CN202310951795.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-31
Publication Date
2025-02-28
Estimated Expiration
2043-07-31

AI Technical Summary

Technical Problem

In the prior art, thermal desorption additives cannot be mixed quickly and uniformly when the soil is heated, which affects the removal effect of organic matter in the soil.

Method used

A tank-type thermal desorption device based on thermal desorption aid is designed. By rotating the rod, the thermal desorption aid is automatically added from the soil, and through the coordination of the partition plate and the guide wheel, the thermal desorption aid is achieved uniformly mixing and controlled addition of the thermal desorption aid.

Benefits of technology

The rapid and even mixing of thermal desorption additives in the soil is achieved, which improves the removal effect of soil organic matter, and effectively controls the use of thermal desorption additives, avoids waste.

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Abstract

This invention relates to the field of contaminated soil remediation technology, and more particularly to a tank-type thermal desorption device based on the filling of a thermal desorption aid. The device includes a tank body, a rotating rod rotatably mounted inside the tank, a first drive motor fixedly mounted at the upper end of the tank body, a rectangular block with a first cavity inside the rectangular block fixedly mounted at the upper end of the tank body, a material cylinder fixedly connected to the upper surface of the rectangular block, a cylindrical cavity inside the rotating rod, a rectangular hole on the surface of the rotating rod, and multiple stirring plates horizontally fixedly mounted on the surface of the rotating rod. Each stirring plate has a second cavity inside, and multiple discharge holes on the surface of the stirring plates. Through the interaction of the material cylinder, the first cavity, the cylindrical cavity, the second cavity, and the discharge holes, the thermal desorption aid can be automatically added from the soil, thereby enabling the thermal desorption aid to quickly and uniformly mix with the soil, improving the removal efficiency of organic matter from the soil.
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Description

Technical Field

[0001] The invention relates to the technical field of contaminated soil treatment, and in particular to a tank-type thermal desorption device based on thermal desorption auxiliary agent filling. Background Art

[0002] Soil thermal desorption is one of the methods to remove pollutants from organically contaminated soil. Its working principle is to add thermal desorption aids to the soil and then heat the organically contaminated soil to a temperature close to or exceeding the boiling point of the organic matter. Under the action of high temperature and thermal desorption aids, the organic pollutants are volatilized and separated from the soil, and then the desorbed waste gas is treated to achieve the purpose of remediation.

[0003] The utility model of Chinese patent number CN219188112U discloses a device for controlling soil odor by using a thermal desorption aid, which relates to the field of thermal desorption technology and includes a device body, a gas processing device is installed on the side wall of the device body, a discharging device is installed inside the device body, and a door device is installed on one side of the device body.

[0004] The above design can reduce the energy consumption required for heating the soil and save energy, but the following problems still exist. When heating the soil, a thermal desorption aid needs to be added to the soil. Most of the existing methods of adding the aid are simply to be added into the soil from the top of the tank. As a result, when heating, the thermal desorption aid cannot be quickly and evenly mixed in the soil, thereby affecting the removal of organic matter in the soil. Summary of the invention

[0005] The purpose of the present invention is to solve the following shortcomings in the prior art: most of the existing methods of adding are simply to put it into the soil from the upper end of the tank, and then when heated, the thermal desorption aid cannot be quickly and evenly mixed in the soil, thereby affecting the removal of organic matter in the soil. A tank-type thermal desorption device based on thermal desorption aid filling is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A tank-type thermal desorption device based on thermal desorption aid filling comprises a tank body, wherein the upper end of the tank body is provided with a feed inlet, the lower end of the tank body is provided with a discharge outlet, a plugging component is provided at the discharge outlet, and a heating device is installed at the bottom of the tank body;

[0008] A rotating rod is rotatably installed in the tank body, a first driving motor is fixedly installed on the upper end of the tank body, an output shaft of the first driving motor is fixedly connected to the rotating rod, a rectangular block is fixedly installed on the upper end of the tank body, a first cavity is opened inside the rectangular block, a material barrel is fixedly connected to the upper surface of the rectangular block, a cylindrical cavity is opened inside the rotating rod, a rectangular hole connected to the cylindrical cavity is opened on the surface of the rotating rod, the rectangular hole is intermittently connected to the first cavity, a plurality of stirring plates are horizontally fixedly installed on the surface of the rotating rod, a second cavity is opened inside the plurality of stirring plates, the cylindrical cavity and the second cavity are connected through a through hole, a plurality of discharge holes connected to the second cavity are opened on the surface of the stirring plate, and the opening directions of the plurality of discharge holes are all opposite to the rotation direction of the rotating rod;

[0009] The surfaces of the plurality of stirring plates are provided with mounting grooves, the plurality of mounting grooves are slidably provided with sliders through first telescopic springs, the surfaces of the plurality of stirring plates are slidably provided with partitions, the plurality of sliders are respectively fixedly connected with the plurality of partitions, the surfaces of the plurality of partitions are provided with a plurality of square holes, two groups of guide rail assemblies are fixedly installed in the tank body through a support frame, one end of the plurality of partitions is fixedly installed with a connecting block, one end of the plurality of connecting blocks is rotatably provided with a guide wheel, and the plurality of guide wheels are respectively in rolling contact with the two groups of guide rail assemblies;

[0010] A support rod is symmetrically fixedly installed between every two stirring plates, a rotating shaft is rotatably installed between every two support rods, rotating rollers are fixedly sleeved on the two rotating shafts, a plurality of V-shaped plates are fixedly installed on the two rotating rollers, a vertical rod is fixedly installed between every two partitions, a fixing sleeve is fixedly installed on the two vertical rods, threads are provided inside the two fixing sleeves, and a transmission component for driving the rotating shaft to rotate is provided on the support rod.

[0011] As a preferred solution, the blocking assembly includes two sealing plates symmetrically slidably mounted on the bottom wall of the tank body and two telescopic cylinders symmetrically fixedly mounted on the bottom wall of the tank body, and the output shafts of the two telescopic cylinders are fixedly connected to the two sealing plates respectively.

[0012] As a preferred solution, the guide rail assembly includes multiple groups of arc portions and multiple groups of bending portions, the multiple groups of arc portions and the multiple groups of bending portions are arranged in a circular ring shape in sequence, and the guide wheel is in sliding contact with the arc portions and the bending portions.

[0013] As a preferred solution, the transmission assembly includes a mounting frame fixedly mounted on the support rod, a threaded rod, a positioning block rotatably sleeved on the threaded rod, a second telescopic spring sleeved on the threaded rod, and a rectangular limit block fixedly mounted on one end of the rotating shaft, a rotating hole is provided on the surface of the mounting frame, the threaded rod is rotatably inserted in the rotating hole, the threaded rod is threadably inserted in the fixed sleeve, the two ends of the second telescopic spring are respectively fixedly connected to the positioning block and the mounting frame, and a limiting groove is provided at one end of the threaded rod.

[0014] As a preferred solution, a support seat is fixedly installed at the lower end of the tank body, and an installation cavity is provided inside the support seat, which is connected with the discharge port, and a heat conduction pipe is symmetrically fixedly installed on the upper surface of the support seat, and two strip holes are provided on the inner wall of the installation cavity, which are respectively connected with two heat conduction pipes, and push plates are symmetrically and slidably installed inside the installation cavity through a driving component, and push blocks with a triangular longitudinal cross-section are fixedly installed on the surfaces of the two push plates, and two lifting blocks are symmetrically arranged inside the installation cavity, and the two lifting blocks are vertically slidably installed in the installation cavity by a plurality of L-shaped support rails, and support rods are rotatably installed on the surfaces of the two lifting blocks, and one end of the two support rods is rotatably connected to the two push plates.

[0015] As a preferred solution, mounting blocks are symmetrically fixedly installed at the strip holes of the mounting cavity, a baffle is slidably installed between the two mounting blocks, spring rods are symmetrically fixedly installed at one end of the two baffles, one end of multiple spring rods are fixedly connected to the mounting blocks through L-shaped blocks, a rectangular plate is symmetrically rotatably installed on the upper end of the lifting block, the two ends of the two rectangular plates are respectively slidably connected to the support rails, locking grooves are opened on the lower surfaces of the two baffles, locking blocks are fixedly installed at one end of the two rectangular plates, and the two locking blocks are respectively located directly below the two locking grooves.

[0016] As a preferred solution, the drive assembly includes a reciprocating screw rotatably installed in an installation cavity, a moving block symmetrically threadedly sleeved on the reciprocating screw, and a second drive motor fixedly installed on the side of a support seat. The left and right ends of the reciprocating screw have opposite thread directions, the two moving blocks are respectively fixedly connected to the two push plates, and one end of the reciprocating screw passes through the installation cavity and is fixedly connected to the output shaft of the second drive motor.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the rotating rod drives the stirring plate to stir, the thermal desorption aid added in the barrel can be automatically added from the inside of the soil through the cooperation of the barrel, the first cavity, the cylindrical cavity, the second cavity and the discharge hole, so that the thermal desorption aid can be quickly and evenly mixed with the soil, thereby improving the effect of removing soil organic matter;

[0019] 2. When the stirring plate drives the partition to rotate around the rotating rod, the first telescopic spring, the slider, the guide rail assembly, the connecting block and the guide wheel cooperate with each other to drive the partition to move back and forth on the stirring plate, and intermittently align with the discharge hole through the square hole, so that the thermal desorption aid is intermittently added to the soil, which can effectively control the amount of thermal desorption aid added to avoid waste;

[0020] 3. During the back and forth movement of the partition, the rotating shaft, rotating roller, V-shaped plate, vertical rod, fixed sleeve and transmission assembly cooperate with each other to drive multiple V-shaped plates to rotate around the rotating shaft, and then the soil in the tank body is turned upside down through multiple V-shaped plates, so that the thermal desorption aid and the soil are mixed more evenly;

[0021] 4. When the soil organic matter is removed and enters the installation cavity, the soil can be introduced into the heat pipe through the cooperation of the heat pipe, baffle, spring rod, lifting block, rectangular plate, push plate and support rod. The heat in the soil can be introduced into the soil to be treated through the thermal conductivity of the heat pipe, so that the temperature of the soil that has not undergone thermal desorption is increased, so as to reduce the energy consumption required for heating the soil and save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a tank-type thermal desorption device based on thermal desorption auxiliary agent filling proposed by the present invention;

[0023] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a tank-type thermal desorption device based on thermal desorption auxiliary agent filling proposed by the present invention;

[0024] Figure 3 A schematic diagram of a three-dimensional partial cross-sectional structure of the interior of a tank in a tank-type thermal desorption device based on thermal desorption aid filling proposed by the present invention;

[0025] Figure 4 A schematic diagram of the three-dimensional structure of the lifting block in a tank-type thermal desorption device based on thermal desorption auxiliary agent filling proposed by the present invention;

[0026] Figure 5 A schematic diagram of the three-dimensional structure of a stirring plate in a tank-type thermal desorption device filled with a thermal desorption aid proposed by the present invention;

[0027] Figure 6 for Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 7 for Figure 2 The enlarged structural diagram at B in the middle;

[0029] Figure 8 for Figure 3 The enlarged structural diagram at C in the middle;

[0030] Fig. 9 for Figure 4 Enlarged structural diagram at point D in the middle.

[0031] In the figure: 1 tank body, 2 rotating rod, 3 first drive motor, 4 rectangular block, 5 first cavity, 6 barrel, 7 cylindrical cavity, 8 stirring plate, 9 second cavity, 10 sealing plate, 11 telescopic cylinder, 12 first telescopic spring, 13 slider, 14 partition, 15 connecting block, 16 guide wheel, 17 arc portion, 18 bending portion, 19 support rod, 20 rotating shaft, 21 rotating roller, 22 V-shaped plate, 23 vertical rod, 24 fixed sleeve, 25 mounting frame, 26 threaded rod, 27 positioning block, 28 second telescopic spring, 29 limiting block, 30 supporting seat, 31 heat pipe, 32 push plate, 33 push block, 34 lifting block, 35 support rod, 36 mounting block, 37 baffle, 38 spring rod, 39 rectangular plate, 40 locking block, 41 reciprocating screw rod, 42 moving block, 43 second drive motor, 44 supporting rail. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-Figure 9 A tank-type thermal desorption device based on thermal desorption aid filling includes a tank body 1, a feed inlet is provided at the upper end of the tank body 1, a discharge port is provided at the lower end of the tank body 1, a blocking component is provided at the discharge port, a heating device is installed at the bottom of the tank body 1 (the heating device is a prior art and is not introduced in detail here), soil enters the tank body 1 from the feed inlet, and the soil in the tank body 1 is heated by the heating device.

[0034] A rotating rod 2 is rotatably installed in the tank body 1, a first drive motor 3 is fixedly installed on the upper end of the tank body 1, and the output shaft of the first drive motor 3 is fixedly connected to the rotating rod 2, a rectangular block 4 is fixedly installed on the upper end of the tank body 1, a first cavity 5 is opened inside the rectangular block 4, and a barrel 6 is fixedly connected to the upper surface of the rectangular block 4, a cylindrical cavity 7 is opened inside the rotating rod 2, a rectangular hole connected to the cylindrical cavity 7 is opened on the surface of the rotating rod 2, and the rectangular hole is intermittently connected to the first cavity 5, a plurality of stirring plates 8 are horizontally fixedly installed on the surface of the rotating rod 2, a second cavity 9 is opened inside the plurality of stirring plates 8, the cylindrical cavity 7 and the second cavity 9 are connected by a through hole, a plurality of discharge holes connected to the second cavity 9 are opened on the surface of the stirring plate 8, and the opening directions of the plurality of discharge holes are all opposite to the rotation direction of the rotating rod 2.

[0035] The rotating rod 2 is driven to rotate by the first driving motor 3. During the rotation of the rotating rod 2, the rectangular opening opened therein will be intermittently connected with the first cavity 5. Under the gravity of the thermal desorption agent itself, the thermal desorption agent will enter the first cavity 5 from the barrel 6, so that the thermal desorption agent will enter the cylindrical cavity 7 from the first cavity 5, and then enter the multiple second cavities 9 respectively under the action of centrifugal force. Since the opening directions of the multiple discharge holes are all opposite to the rotation direction of the rotating rod 2, the thermal desorption agent is discharged from the discharge holes and enters the soil. At the same time, the rotating rod 2 will drive the multiple stirring plates 8 to rotate around the rotating rod 2, so that under the stirring of the multiple stirring plates 8, the thermal desorption agent can be quickly and evenly mixed in the soil, thereby improving the effect of removing soil organic matter.

[0036] The surfaces of the multiple stirring plates 8 are all provided with installation grooves, and sliders 13 are slidably installed in the multiple installation grooves through first telescopic springs 12. Partitions 14 are slidably installed on the surfaces of the multiple stirring plates 8. The multiple sliders 13 are respectively fixedly connected to the multiple partitions 14. The surfaces of the multiple partitions 14 are provided with multiple square holes. Two groups of guide rail assemblies are fixedly installed in the tank body 1 through a support frame, and connecting blocks 15 are fixedly installed at one end of the multiple partitions 14. Guide wheels 16 are rotatably installed at one end of the multiple connecting blocks 15. The multiple guide wheels 16 are respectively in rolling contact with the two groups of guide rail assemblies. The guide rail assemblies include multiple groups of arc portions 17 and multiple groups of bending portions 18. The multiple groups of arc portions 17 and the multiple groups of bending portions 18 are arranged in sequence in a circular ring shape, and the guide wheel 16 is in sliding contact with the arc portion 17 and the bending portion 18.

[0037] When the stirring plate 8 rotates, the guide wheel 16 is driven to rotate around the rotating rod 2 through the partition 14 and the connecting block 15, and under the action of the first telescopic spring 12 and the sliding block 13, the partition 14 always has a movement tendency away from the rotating rod 2, thereby ensuring that the guide wheel 16 is always in contact with the arc portion 17 and the bent portion 18 in the guide rail assembly. When the guide wheel 16 rolls on the bent portion 18, under the action of the elastic force of the first telescopic spring 12, the partition 14 will move in the opposite direction away from the rotating rod 2 until the surface of the partition 14 opens. The multiple square holes are aligned with the discharge hole. At this time, the thermal desorption aid in the second cavity 9 will pass through the discharge hole and the square hole into the soil. When the guide wheel 16 moves to a general position on the bending portion 18, under the action of the elastic force of the first telescopic spring 12, the partition 14 will be driven by the slider 13 to move toward the rotating rod 2, so that the square hole and the discharge hole are staggered, and then the discharge hole is blocked by the partition 14, so that the thermal desorption aid is intermittently added to the soil, which can effectively control the amount of thermal desorption aid added to avoid waste.

[0038] A support rod 19 is symmetrically fixedly installed between each two stirring plates 8, a rotating shaft 20 is rotatably installed between each two support rods 19, a rotating roller 21 is fixedly sleeved on the two rotating shafts 20, and a plurality of V-shaped plates 22 are fixedly installed on the two rotating rollers 21, a vertical rod 23 is fixedly installed between each two partitions 14, a fixed sleeve 24 is fixedly installed on the two vertical rods 23, and the two fixed sleeves 24 are threaded inside, and a transmission component for driving the rotating shaft 20 to rotate is provided on the support rod 19, and the transmission component includes a fixed installation The mounting frame 25, the threaded rod 26, the positioning block 27 rotatably sleeved on the threaded rod 26, the second telescopic spring 28 sleeved on the threaded rod 26 and the rectangular limit block 29 fixedly mounted on one end of the rotating shaft 20 are mounted on the support rod 19. A rotating hole is provided on the surface of the mounting frame 25, the threaded rod 26 is rotatably inserted in the rotating hole, the threaded rod 26 is threadedly inserted in the fixed sleeve 24, the two ends of the second telescopic spring 28 are respectively fixedly connected to the positioning block 27 and the mounting frame 25, and a limiting groove is provided at one end of the threaded rod 26.

[0039] When the partition 14 moves back and forth on the stirring plate 8, it will drive the fixing sleeve 24 to move back and forth on the threaded rod 26, and then drive the threaded rod 26 to rotate through the thread provided inside the fixing sleeve 24. When the fixing sleeve 24 drives the threaded rod 26 to move in the direction of the rotating shaft 20, the friction force between the threads is greater than the elastic force of the second telescopic spring 28, and then the fixing sleeve 24 drives the threaded rod 26 to move in the direction of the rotating shaft 20, and the second telescopic spring 28 is stretched. When one end of the threaded rod 26 contacts the limit block 29, the threaded rod 26 is driven to rotate again until the limit block 29 is inserted into The threaded rod 26 drives the rotating shaft 20 to rotate in the limiting groove, and the rotating shaft 20 drives the multiple V-shaped plates 22 to rotate around the rotating shaft 20 through the rotating roller 21. When the fixed sleeve 24 moves away from the rotating rod 2, it will first drive the threaded rod 26 to separate from the limiting block 29, and the second telescopic spring 28 will be compressed until it is compressed to the maximum deformation. The fixed sleeve 24 drives the threaded rod 26 to rotate in the opposite direction, and the threaded rod 26 and the positioning block 27 rotate relative to each other, and then the soil is turned upside down through the multiple V-shaped plates 22, so that the thermal desorption aid and the soil are mixed more evenly.

[0040] The plugging assembly includes two sealing plates 10 symmetrically slidably mounted on the inner bottom wall of the tank body 1 and two telescopic cylinders 11 symmetrically fixedly mounted on the inner bottom wall of the tank body 1. The output shafts of the two telescopic cylinders 11 are fixedly connected to the two sealing plates 10 respectively. A support seat 30 is fixedly mounted on the lower end of the tank body 1. An installation cavity is provided inside the support seat 30. The installation cavity is connected to the discharge port. A heat conducting pipe 31 is symmetrically fixedly mounted on the upper surface of the support seat 30. Two strip holes are provided on the inner wall of the installation cavity, which are respectively connected to the two heat conducting pipes 31. Push plates 32 are symmetrically slidably mounted inside the installation cavity through a driving assembly. Push blocks 33 with a triangular longitudinal section are fixedly mounted on the surfaces of the two push plates 32. The installation cavity is symmetrically slidably mounted with a push plate 32 through a driving assembly. Push blocks 33 with a triangular longitudinal section are fixedly mounted on the surfaces of the two push plates 32. There are two lifting blocks 34, which are vertically slidably installed in the installation cavity through multiple L-shaped support rails 44 respectively. Support rods 35 are rotatably installed on the surfaces of the two lifting blocks 34. One ends of the two support rods 35 are rotatably connected to the two push plates 32 respectively. The driving assembly includes a reciprocating screw rod 41 rotatably installed in the installation cavity, a moving block 42 symmetrically threadedly sleeved on the reciprocating screw rod 41, and a second driving motor 43 fixedly installed on the side of the support seat 30. The left and right ends of the reciprocating screw rod 41 have opposite thread directions. The two moving blocks 42 are fixedly connected to the two push plates 32 respectively, and one end of the reciprocating screw rod 41 passes through the installation cavity and is fixedly connected to the output shaft of the second driving motor 43.

[0041] The two sealing plates 10 are driven away from each other by the two telescopic cylinders 11, thereby opening the discharge port, and the soil that has undergone thermal desorption will enter the installation cavity opened by the support seat 30. The installation cavity has a heat-insulating effect to prevent heat loss. By starting the second drive motor 43, the reciprocating screw rod 41 can be driven to rotate. Since the left and right ends of the reciprocating screw rod 41 have opposite thread directions, the two moving blocks 42 will be driven to reciprocate in the installation cavity, and then the two moving blocks 42 will respectively drive the two push plates 32 to reciprocate in the installation cavity. Since the longitudinal sections of the multiple push blocks 33 are all triangular, when the two push plates 32 are away from each other, the soil contacts the vertical surface of the push block 33, thereby driving the soil in the installation cavity to accumulate on both sides. When the two push blocks 33 are close to each other, the soil contacts the inclined surface of the push block 33, and then the push block 33 will not drive the soil to move, thereby realizing the continuous accumulation of the soil on both sides.

[0042] A mounting block 36 is symmetrically fixedly installed at the strip hole of the mounting cavity, a baffle 37 is slidably installed between the two mounting blocks 36, spring rods 38 are symmetrically fixedly installed at one end of the two baffles 37, one end of multiple spring rods 38 are fixedly connected to the mounting block 36 through L-shaped blocks, a rectangular plate 39 is symmetrically rotatably installed on the upper end of the lifting block 34, the two ends of the two rectangular plates 39 are respectively slidably connected to the support rail 44, and locking grooves are provided on the lower surfaces of the two baffles 37. Locking blocks 40 are fixedly installed at one end of the two rectangular plates 39, and the two locking blocks 40 are respectively located directly below the two locking grooves.

[0043] When the two push blocks 33 move relative to each other, the two lifting blocks 34 will be driven to move up and down between the multiple support rails 44 through the support rods 35. When the lifting blocks 34 move upward, the two ends of the two rectangular plates 39 will move relative to the support rails 44, and will drive the upper end of the lifting blocks 34 and the soil between the two rectangular plates 39 to move upward. When the two rectangular plates 39 are in contact with the two baffles 37 respectively, the locking blocks 40 fixedly mounted on the rectangular plates 39 will be inserted into the locking grooves, and then the two baffles 37 will be propped open by the two rectangular plates 39, and one end of the baffle 37 will move along the horizontal end of the support rail 44, thereby The soil will be pushed into the heat-conducting pipe 31. When the two rectangular plates 39 and the baffle 37 are in a horizontal state, the locking block 40 will move out of the locking groove, and then under the action of the elastic force of the spring rod 38, the two baffles 37 are close to each other, so that the soil in the installation cavity is continuously pushed into the two heat-conducting pipes 31 by continuously moving up and down the lifting block 34. The heat-conducting pipe 31 has unidirectional thermal conductivity and is tightly attached to the tank body 1, so that the heat in the soil can be introduced into the soil to be treated in the tank body 1, so that the temperature of the soil that has not undergone thermal desorption is increased, so as to reduce the energy consumption required for heating the soil and save energy.

[0044] In the present invention, the rotating rod 2 is driven to rotate by the first driving motor 3. During the rotation of the rotating rod 2, the thermal desorption aid in the first cavity 5 will enter the cylindrical cavity 7, and then enter the second cavity 9 opened by the multiple stirring plates 8 under the action of centrifugal force. Since the opening directions of the multiple discharge holes are all opposite to the rotation direction of the rotating rod 2, the thermal desorption aid is discharged from the discharge holes and enters the soil. At the same time, the rotating rod 2 will drive the multiple stirring plates 8 to rotate around the rotating rod 2 to achieve stirring of the soil, so that the thermal desorption aid can be quickly and evenly mixed in the soil, thereby improving the effect of removing soil organic matter.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tank-type thermal desorption device based on thermal desorption aid filling, comprising a tank body (1), characterized in that: The upper end of the tank body (1) is provided with a feed inlet, the lower end of the tank body (1) is provided with a discharge port, a blocking component is provided at the discharge port, and a heating device is installed at the bottom of the tank body (1); A rotating rod (2) is rotatably mounted in the tank body (1), a first drive motor (3) is fixedly mounted on the upper end of the tank body (1), an output shaft of the first drive motor (3) is fixedly connected to the rotating rod (2), a rectangular block (4) is fixedly mounted on the upper end of the tank body (1), a first cavity (5) is formed inside the rectangular block (4), a material barrel (6) is fixedly connected to the upper surface of the rectangular block (4), a cylindrical cavity (7) is formed inside the rotating rod (2), and a surface of the rotating rod (2) is provided with a first cavity (5). A rectangular hole is provided which is connected to the cylindrical cavity (7), and the rectangular hole is intermittently connected to the first cavity (5); a plurality of stirring plates (8) are fixedly installed horizontally on the surface of the rotating rod (2); a second cavity (9) is provided inside each of the plurality of stirring plates (8); the cylindrical cavity (7) and the second cavity (9) are connected via a through hole; a plurality of discharge holes are provided on the surface of the stirring plate (8) which are connected to the second cavity (9); and the opening directions of the plurality of discharge holes are all opposite to the rotation direction of the rotating rod (2); The surfaces of the plurality of stirring plates (8) are provided with mounting grooves, the plurality of mounting grooves are provided with sliding blocks (13) slidably mounted via first telescopic springs (12), the surfaces of the plurality of stirring plates (8) are provided with partitions (14) slidably mounted, the plurality of sliding blocks (13) are respectively fixedly connected to the plurality of partitions (14), the surfaces of the plurality of partitions (14) are provided with a plurality of square holes, two groups of guide rail assemblies are fixedly mounted in the tank body (1) via a support frame, one end of the plurality of partitions (14) is fixedly mounted with a connecting block (15), one end of the plurality of connecting blocks (15) is rotatably mounted with a guide wheel (16), and the plurality of guide wheels (16) are respectively in rolling contact with the two groups of guide rail assemblies; A support rod (19) is symmetrically fixedly installed between each two stirring plates (8), a rotating shaft (20) is rotatably installed between each two support rods (19), a rotating roller (21) is fixedly sleeved on the two rotating shafts (20), a plurality of V-shaped plates (22) are fixedly installed on the two rotating rollers (21), a vertical rod (23) is fixedly installed between each two partitions (14), a fixing sleeve (24) is fixedly installed on the two vertical rods (23), and the two fixing sleeves (24) are provided with threads inside, and a transmission component for driving the rotating shaft (20) to rotate is provided on the support rod (19); The transmission assembly comprises a mounting frame (25) fixedly mounted on the support rod (19), a threaded rod (26), a positioning block (27) rotatably sleeved on the threaded rod (26), a second telescopic spring (28) sleeved on the threaded rod (26), and a rectangular limiting block (29) fixedly mounted on one end of the rotating shaft (20); a rotating hole is provided on the surface of the mounting frame (25); the threaded rod (26) is rotatably inserted into the rotating hole; the threaded rod (26) is threadedly inserted into the fixing sleeve (24); two ends of the second telescopic spring (28) are respectively fixedly connected to the positioning block (27) and the mounting frame (25); and one end of the threaded rod (26) is provided with a limiting groove.

2. A tank-type thermal desorption device based on thermal desorption aid filling according to claim 1, characterized in that: The blocking assembly comprises two sealing plates (10) symmetrically slidably mounted on the inner bottom wall of the tank body (1) and two telescopic cylinders (11) symmetrically fixedly mounted on the inner bottom wall of the tank body (1), wherein the output shafts of the two telescopic cylinders (11) are respectively fixedly connected to the two sealing plates (10).

3. A tank-type thermal desorption device based on thermal desorption aid filling according to claim 1, characterized in that: The guide rail assembly comprises a plurality of groups of arc-shaped portions (17) and a plurality of groups of bent portions (18), the plurality of groups of arc-shaped portions (17) and the plurality of groups of bent portions (18) being arranged in sequence in a circular ring shape, and the guide wheel (16) being in sliding contact with the arc-shaped portions (17) and the bent portions (18).

4. A tank-type thermal desorption device based on thermal desorption aid filling according to claim 1, characterized in that: A support seat (30) is fixedly mounted at the lower end of the tank body (1), a mounting cavity is provided inside the support seat (30), the mounting cavity is communicated with the discharge port, a heat conduction pipe (31) is symmetrically fixedly mounted on the upper surface of the support seat (30), the inner wall of the mounting cavity is provided with two strip-shaped holes respectively communicated with the two heat conduction pipes (31), a push plate (32) is symmetrically slidably mounted inside the mounting cavity through a driving assembly, a push block (33) having a triangular longitudinal cross-section is fixedly mounted on the surface of the two push plates (32), two lifting blocks (34) are symmetrically arranged inside the mounting cavity, the two lifting blocks (34) are vertically slidably mounted in the mounting cavity respectively through a plurality of L-shaped support rails (44), a support rod (35) is rotatably mounted on the surface of the two lifting blocks (34), one end of the two support rods (35) is rotatably connected to the two push plates (32) respectively.

5. A tank-type thermal desorption device based on thermal desorption aid filling according to claim 4, characterized in that: A mounting block (36) is symmetrically fixedly installed at the strip hole of the mounting cavity, a baffle (37) is slidably installed between the two mounting blocks (36), one end of the two baffles (37) is symmetrically fixedly installed with a spring rod (38), one end of a plurality of the spring rods (38) is respectively fixedly connected to the mounting block (36) through an L-shaped block, a rectangular plate (39) is symmetrically rotatably installed on the upper end of the lifting block (34), the two ends of the two rectangular plates (39) are respectively slidably connected to the support rail (44), the lower surfaces of the two baffles (37) are provided with a locking groove, one end of the two rectangular plates (39) is fixedly installed with a locking block (40), and the two locking blocks (40) are respectively located directly below the two locking grooves.

6. A tank-type thermal desorption device based on thermal desorption aid filling according to claim 4, characterized in that: The driving assembly comprises a reciprocating screw (41) rotatably mounted in the mounting cavity, a moving block (42) symmetrically threadedly sleeved on the reciprocating screw (41), and a second driving motor (43) fixedly mounted on the side of the support seat (30), wherein the left and right ends of the reciprocating screw (41) have opposite thread directions, the two moving blocks (42) are fixedly connected to the two push plates (32) respectively, and one end of the reciprocating screw (41) passes through the mounting cavity and is fixedly connected to the output shaft of the second driving motor (43).

Citation Information

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