A soil infrared thermal desorption repair device

Abstract

The present invention provides a soil infrared thermal desorption repair device, which belongs to the field of soil treatment technology. It comprises a thermal repair device and a workbench, wherein a rotating mechanism is installed on the workbench, and both output ends of the rotating mechanism are engaged with a rotating circle, and the thermal repair device is installed in the two sets of rotating circles, and the thermal repair device comprises a rolling hot soil assembly. The present invention sets a spiral guide rail and a strip spiral plate, and uses it in conjunction with a dzi bead-shaped heat cylinder, so that when the soil enters the dzi bead-shaped heat cylinder, it can move along the inner and outer walls of the dzi bead-shaped heat cylinder, thereby extending the soil's travel path to the greatest extent. At the same time, when the semi-volatile organic compounds in the soil are treated, the reversed dzi bead-shaped heat cylinder can make the soil return to its original path, thereby reheating the soil again, so that after multiple heating, the pollutants are removed more thoroughly, so as to solve the problem that the existing soil thermal desorption repair device occupies a large space and has a high cost of use.

Description

Technical Field

[0001] The present invention relates to the technical field of soil treatment, and in particular to a soil infrared thermal desorption and repair device. Background Art

[0002] Soil remediation is a technical measure to restore the normal function of contaminated soil. Thermal desorption refers to the process of volatilizing organic pollutants and metallic mercury in contaminated soil through direct or indirect heat exchange, separating them from the soil, and effectively collecting and treating the volatilized pollutants.

[0003] In order to ensure good decontamination effects, existing soil thermal desorption remediation devices need to ensure sufficient contact between the soil and the heat source. Therefore, the heat source needs to be set larger, which occupies a larger space and has a higher cost of use. At the same time, the pollutants in the soil will evaporate into gas after being heated. There is a large amount of heat in the gas, and the existing soil thermal desorption remediation devices will cause waste of this heat energy.

[0004] Therefore, the present application provides a soil infrared thermal desorption repair device to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a soil infrared thermal desorption and repair device. By setting a spiral guide rail and a strip spiral plate, and using it in conjunction with a dzi bead-shaped heat cylinder, the soil can move along the inner and outer walls of the dzi bead-shaped heat cylinder when entering the dzi bead-shaped heat cylinder, thereby extending the soil's travel route to the greatest extent. At the same time, when the semi-volatile organic compounds in the soil are treated, reversing the dzi bead-shaped heat cylinder can make the soil return to its original path, thereby reheating the soil again, so that after multiple heating, the pollutants are removed more thoroughly, so as to solve the problem that the existing soil thermal desorption and repair device occupies a large space and has a high cost of use.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A soil infrared thermal desorption repair device comprises a thermal repair device and a workbench, wherein a rotating mechanism is mounted on the workbench, and both output ends of the rotating mechanism are engaged with rotating circles, wherein the thermal repair device is mounted in the two sets of rotating circles, and the thermal repair device comprises a tumbling hot soil assembly;

[0008] The tumbling hot soil component includes a celestial bead-shaped hot cylinder. The outer walls at both ends of the celestial bead-shaped hot cylinder are respectively fixedly connected to the inner walls of two groups of rotating rings. A spiral guide rail is fixedly installed on the inner wall of the celestial bead-shaped hot cylinder. There are multiple groups of the spiral guide rails, and they are arranged at uniform intervals between two by two. The multiple groups of spiral guide rails are evenly distributed on the inner wall of the celestial bead-shaped hot cylinder according to a spiral line. A soil discharge groove is opened on the end wall of the celestial bead-shaped hot cylinder. There are multiple groups of the soil discharge grooves, and they are evenly distributed on the outer wall of the celestial bead-shaped hot cylinder. Multiple groups of soil guiding plates are fixedly installed on the inner wall at the end of the celestial bead-shaped hot cylinder. The soil guiding plates can be used in cooperation with the last spiral guide rail. A strip-shaped spiral plate is fixedly installed on the outer wall of the celestial bead-shaped hot cylinder. There are multiple groups of the strip-shaped spiral plates, and two adjacent strip-shaped spiral plates are connected to the corresponding soil discharge grooves. The spiral direction of the spiral guide rail is opposite to the spiral direction of the strip-shaped spiral plate. Two groups of soil retaining buckles are fixedly installed on the outer wall in the middle of the strip-shaped spiral plate, and the soil retaining buckles are in contact with the outer wall of the celestial bead-shaped hot cylinder.

[0009] Optionally, a sealing ring plate is fixedly installed on the outer wall in the middle of the celestial bead-shaped hot cylinder. An L-shaped ring plate is fixedly installed on the end wall of the sealing ring plate. There is a gap between the bottom of the L-shaped ring plate and the celestial bead-shaped hot cylinder. Multiple air guiding grooves are opened on the left side wall of the L-shaped ring plate. A sealing shell is fixedly installed on the right outer wall of the L-shaped ring plate through bolts. The outer walls of multiple groups of strip-shaped spiral plates are all in contact with the inner wall of the sealing shell, and the inner wall at the end of the sealing shell is in sealing contact with the end wall of the celestial bead-shaped hot cylinder. An outer cylinder shell is fixedly installed at the top of the left inner wall of the L-shaped ring plate. An exhaust area is formed between the inner wall of the outer cylinder shell and the outer wall of the sealing shell. The exhaust area is connected to the inside of the L-shaped ring plate, the inside of the sealing ring plate, and the inside of the sealing shell.

[0010] Optionally, a sealing retaining ring is fixedly installed on the inner wall of the sealing ring plate. The sealing retaining ring is sleeved on the outer wall of the celestial bead-shaped hot cylinder. Multiple air vent rings are sleeved on the outer wall in the middle of the celestial bead-shaped hot cylinder, and the multiple air vent rings are arranged at uniform intervals. The top outer wall of the last air vent ring is in sealing contact with the left outer wall of the L-shaped ring plate. Multiple air vent holes are evenly opened on the air vent rings. The inside of the sealing shell is connected to the inside of the sealing ring plate through multiple air vent holes, and the inside of the sealing ring plate is connected to the inside of the exhaust area through multiple air guiding grooves.

[0011] Optionally, an introduction component is installed on the left side of the tumbling hot soil component. The introduction component includes a transfer shell. The inner wall of the transfer shell is rotationally connected to the barrel mouth of the celestial bead-shaped hot cylinder through a bearing. The transfer shell is fixedly connected to the workbench. A discharge groove is opened at the bottom of the transfer shell. A partition board is inserted into the inner wall in the middle of the discharge groove. An air inlet pipe is fixedly installed on the left side of the transfer shell. The left pipe opening of the air inlet pipe is externally connected to a fan. A valve shell is fixedly installed at the top pipe opening of the air inlet pipe. A turning roller is rotationally connected to the inner wall of the valve shell. A motor is fixedly installed on the outer wall of the valve shell. The output shaft of the motor is fixedly connected to the end wall of the turning roller. A feed pipe is fixedly installed at the top valve port of the valve shell.

[0012] Optionally, a top shaft is fixedly installed on the end wall of the bead-shaped heat cylinder, and the other end of the top shaft is rotatably connected to the side wall of the workbench. The outer wall of the top shaft is rotatably connected to a support ring through a bearing, and an exhaust pipe is fixedly installed on the outer wall of the support ring. The inner wall of the support ring is provided with multiple groups of through grooves, and the exhaust area is connected to the exhaust pipe through the through grooves. A bearing is installed on the inner wall of the end of the outer cylinder shell, and the inner wall of the end of the outer cylinder shell is rotatably connected to the outer wall of the support ring through a bearing. The top shaft seal passes through the side wall of the exhaust pipe, and a preheating pipe is fixedly installed on the top of the exhaust pipe.

[0013] Optionally, a silo is fixedly installed on the top of the workbench, a feed port is opened on the top of the silo, the top of the feed pipe is connected to the inside of the silo, the preheating pipe is sealed and passes through the silo, and can preheat the material inside the silo, and an infrared heating device is fixedly installed on the outer wall of the outer cylinder shell.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] In the above scheme, by setting a spiral guide rail and a strip spiral plate, and using them in conjunction with the bead-shaped heat cylinder, when the soil enters the bead-shaped heat cylinder, the driving rotation mechanism drives the two sets of rotating circles to rotate, thereby driving the bead-shaped heat cylinder as a whole to rotate. Under the guidance of the spiral guide rail on the inner wall of the bead-shaped heat cylinder, the soil will move from the front of the bead-shaped heat cylinder to the end, and with the guidance of the soil guide plate, the soil in the bead-shaped heat cylinder will be discharged from the soil discharge trough into the two sets of strip spiral plates. At the same time, since the rotation directions of the spiral guide rail and the strip spiral plate are opposite, the soil will move along the outside of the bead-shaped heat cylinder. The strip spiral plate connected to the retaining plate moves, thereby transporting the soil to the end of the strip spiral plate. During this process, the infrared heating device can always heat the contaminated soil, thereby removing the semi-volatile organic compounds in the soil. The spiral guide rail and the strip spiral plate can extend the soil's travel route to the greatest extent. At the same time, when the volatile organic compounds and semi-volatile organic compounds in the soil are treated, the reversed dzi bead-shaped heat cylinder can make the soil return to its original path, thereby reheating the soil again, so that after multiple heating, the pollutants can be removed more thoroughly.

[0016] After removing the semi-volatile organic compounds in the soil, they are gasified and blown from the sealed shell to the ventilation ring along with the blown air flow, and enter the sealing ring plate through the ventilation hole on the ventilation ring, and then pass through the air guide groove into the exhaust area, and then pass through the through groove into the exhaust pipe, and finally enter the preheating pipe from the exhaust pipe. When entering the preheating pipe, the soil in the silo can be preheated, thereby eliminating the volatile organic compounds in the soil, and discharged through the preheating pipe to the external exhaust gas treatment unit for treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a soil infrared thermal desorption remediation device;

[0019] Figure 2 This is a schematic diagram of the structure inside the silo;

[0020] Figure 3 It is a structural diagram of the connection between the thermal repair device and the rotating mechanism;

[0021] Figure 4 It is a structural diagram of the connection between the thermal repair device and the rotating and infrared heating devices;

[0022] Figure 5 It is a structural schematic diagram of the thermal repair device;

[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0024] Figure 7 This is the installation structure diagram of the hot soil rolling component and the import component;

[0025] Figure 8 This is a schematic diagram of the structure of the imported component;

[0026] Figure 9 This is a split diagram of the imported component;

[0027] Figure 10 Schematic diagram of the internal structure of the valve housing;

[0028] Figure 11 This is a schematic diagram of the structure of the rolling hot soil component;

[0029] Figure 12 This is a schematic diagram of the installation of the vent ring in the sealing ring plate;

[0030] Figure 13 Schematic diagram of the structure of the vent ring;

[0031] Figure 14 It is a cross-sectional view of the tumbling hot soil assembly;

[0032] Figure 15 The figure is a schematic diagram of the assembly of the sealing shell and the bead-shaped heat cylinder;

[0033] Figure 16 Schematic diagram of the assembly of the outer cylinder shell and the annular ring plate;

[0034] Figure 17Schematic diagram of the assembly of the L-shaped ring plate and the sealing ring plate;

[0035] Figure 18 Schematic diagram of the structures of the components on the dzi bead-shaped heating cylinder;

[0036] Figure 19 Schematic diagram of the structure of the strip-shaped spiral plate;

[0037] Figure 20 Location map of the excavation of the soil discharge groove;

[0038] Figure 21 Cross-sectional view of the dzi bead-shaped heating cylinder.

[0039] Reference numerals:

[0040] Thermal repair device 100, tumbling hot soil component 110, dzi bead-shaped heating cylinder 111, spiral guide rail 112, soil discharge groove 113, soil guide plate 114, strip-shaped spiral plate 115, soil retaining buckle plate 116, sealing ring plate 120, L-shaped ring plate 121, air guide groove 122, sealing shell 123, sealing retaining ring 124, ventilation ring 125, ventilation hole 126, outer cylinder shell 130, exhaust area 131, introduction component 140, transfer shell 141, discharge chute 142, partition plate 143, intake pipe 144, valve housing 145, turning roller 146, motor 147, feed pipe 148, top shaft 150, support ring 151, through groove 152, exhaust pipe 153, preheating pipe 154, workbench 200, rotating mechanism 210, rotating circle 220, infrared heating device 230, storage bin 240, feed inlet 241.

[0041] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0042] The following describes in detail a soil infrared thermal desorption and repair device provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0043] As Figures 1 to 21As shown, an embodiment of the present invention provides a soil infrared thermal desorption repair device, comprising a thermal repair device 100 and a workbench 200, wherein a rotating mechanism 210 is mounted on the workbench 200, and rotating circles 220 are engaged at both output ends of the rotating mechanism 210, and the thermal repair device 100 is mounted in the two sets of rotating circles 220, and the thermal repair device 100 includes a tumbling hot soil assembly 110;

[0044] The tumbling hot soil assembly 110 includes a bead-shaped heat cylinder 111. The outer walls at both ends of the bead-shaped heat cylinder 111 are fixedly connected to the inner walls of the two sets of rotating circles 220 respectively. The shape of the bead-shaped heat cylinder 111 is set to be narrow at both ends and wide in the middle, and the end length is much larger than the front and middle parts. This setting can ensure that the soil will not accumulate at the front end of the bead-shaped heat cylinder 111 when entering. At the same time, when moving out of the bead-shaped heat cylinder 111, it can move close to the inner wall of the bead-shaped heat cylinder 111 to make the soil heated evenly. A spiral guide rail 112 is fixedly installed on the inner wall of the bead-shaped heat cylinder 111. There are multiple groups of spiral guide rails 112, and they are evenly spaced between each other. The multiple groups of spiral guide rails 112 are evenly distributed according to the spiral line. On the inner wall of the bead-shaped heat cylinder 111, when the bead-shaped heat cylinder 111 rotates, the soil can slide on the spiral guide rail 112, which increases the heating time of the soil in the bead-shaped heat cylinder 111 and improves the heating efficiency. The end wall of the bead-shaped heat cylinder 111 is provided with a soil discharge trough 113, and there are multiple groups of soil discharge troughs 113, which are evenly distributed on the outer wall of the bead-shaped heat cylinder 111. The inner wall of the end of the bead-shaped heat cylinder 111 is fixedly installed with multiple groups of soil guide plates 114, which can be used in conjunction with the spiral guide rail 112 at the end. The outer wall of the bead-shaped heat cylinder 111 is fixedly installed with strip spiral plates 115, and there are multiple groups of strip spiral plates 115, and two adjacent groups of strip spiral plates 115 are fixedly installed. It is connected to the corresponding soil discharge trough 113, and the rotation direction of the spiral guide rail 112 is opposite to that of the strip spiral plate 115, ensuring that the soil will not reverse during movement, so that it can move smoothly on the inner and outer walls of the bead-shaped heat cylinder 111. Two groups of soil retaining plates 116 are fixedly installed on the outer wall of the middle part of the strip spiral plate 115. The soil retaining plates 116 can prevent the soil from flowing back due to being in a "climbing state" when moving on the strip spiral plate 115, and the soil retaining plates 116 are in contact with the outer wall of the bead-shaped heat cylinder 111. In the present invention, the driving rotation mechanism 210 drives the two groups of rotating circles 220 to rotate, thereby driving the bead-shaped heat cylinder 111 to rotate as a whole. Due to the guiding effect of the spiral guide rail 112 on the inner wall of the heat barrel 111, the soil will move from the front of the bead-shaped heat barrel 111 to the end, and with the guiding effect of the soil guide plate 114, the soil in the bead-shaped heat barrel 111 will be discharged from the soil discharge trough 113 into the two sets of strip spiral plates 115. At the same time, since the rotation directions of the spiral guide rail 112 and the strip spiral plates 115 are opposite, the soil will move outside the bead-shaped heat barrel 111 along the strip spiral plates 115 connected to the retaining plates 116, thereby transporting the soil to the end of the strip spiral plates 115. During this process, the infrared heating device 230 can always heat the contaminated soil, thereby removing semi-volatile organic compounds in the soil.

[0045] As an implementation method in this embodiment, Figures 11 to 17As shown, a sealing ring plate 120 is fixedly installed on the outer wall of the middle part of the dzi bead-shaped heat cylinder 111. A L-shaped ring plate 121 is fixedly installed on the end wall of the sealing ring plate 120. There is a gap between the bottom of the L-shaped ring plate 121 and the dzi bead-shaped heat cylinder 111. The air flow in the sealing shell 123 can pass through the gap between the bottom of the L-shaped ring plate 121 and the dzi bead-shaped heat cylinder 111. Multiple air guide grooves 122 are formed on the left side wall of the L-shaped ring plate 121. The air guide grooves 122 can connect the inside of the sealing ring plate 120 with the L-shaped ring plate 121. The outer wall of the right side of the L-shaped ring plate 121 is fixedly installed with a sealing shell 123 by bolts. The outer walls of multiple strip-shaped spiral plates 115 are all in contact with the inner wall of the sealing shell 123, ensuring that the soil can only move within two adjacent strip-shaped spiral plates 115. And the inner wall of the end of the sealing shell 123 is in sealing contact with the end wall of the dzi bead-shaped heat cylinder 111. At the top of the inner wall on the left side of the L-shaped ring plate 121, an outer cylinder shell 130 is fixedly installed. An exhaust area 131 is formed between the inner wall of the outer cylinder shell 130 and the outer wall of the sealing shell 123. The exhaust area 131 is connected to the inside of the L-shaped ring plate 121, the inside of the sealing ring plate 120, and the inside of the sealing shell 123.

[0046] A sealing retaining ring 124 is fixedly installed on the inner wall of the sealing ring plate 120. The sealing retaining ring 124 is sleeved on the outer wall of the dzi bead-shaped heat cylinder 111. The sealing retaining ring 124 plays a role in positioning the installation of the ventilation rings 125. Multiple ventilation rings 125 are sleeved on the outer wall of the middle part of the dzi bead-shaped heat cylinder 111, and the multiple ventilation rings 125 are arranged at uniform intervals. The outer wall of the top of the last ventilation ring 125 is in sealing fit with the outer wall on the left side of the L-shaped ring plate 121. The last ventilation ring 125 can prevent the soil from passing through the ventilation rings 125 and entering the sealing ring plate 120. Multiple ventilation holes 126 are evenly formed on the ventilation rings 125. The aperture of the ventilation holes 126 is smaller than the soil particle size, and it can only allow gas to pass through. The inside of the sealing shell 123 is connected to the inside of the sealing ring plate 120 through multiple ventilation holes 126, and the inside of the sealing ring plate 120 is connected to the inside of the exhaust area 131 through multiple air guide grooves 122.

[0047] In this embodiment, as Figures 7 to 10As shown, an introduction component 140 is installed on the left side of the tumbling hot soil component 110, and the introduction component 140 includes a transfer shell 141. The inner wall of the transfer shell 141 is rotatably connected to the tube mouth of the celestial bead-shaped hot cylinder 111 through a bearing, and the transfer shell 141 is fixedly connected to the workbench 200. A discharge trough 142 is provided at the bottom of the transfer shell 141, and a partition 143 is inserted into the inner wall of the middle of the discharge trough 142. An air intake pipe 144 is fixedly installed on the left side of the transfer shell 141. The left pipe mouth of the air intake pipe 144 is externally connected to a fan, and a valve shell 145 is fixedly installed on the top pipe mouth of the air intake pipe 144. The inner wall of the valve shell 145 is rotatably connected to a turning roller 146, and a motor 147 is fixedly installed on the outer wall of the valve shell 145. The output shaft of the motor 147 is fixedly connected to the end wall of the turning roller 146, and a feed pipe 148 is fixedly installed on the valve mouth of the top valve shell 145. In the present invention, the material bin 240 is After the soil is preheated, the motor 147 is driven to drive the turning roller 146 to rotate, and the soil in the silo 240 is sent into the air inlet pipe 144 through the feed pipe 148 and the valve housing 145. The airflow of the fan outside the air inlet pipe 144 sends the soil in the air inlet pipe 144 into the bead-shaped heat cylinder 111. In particular, after the treatment of volatile organic compounds and semi-volatile organic compounds in the soil is completed, the reversing rotation mechanism 210 causes the bead-shaped heat cylinder 111 to reverse. At this time, the treated soil will move along the strip spiral plate 115 on the other side, pass through the soil discharge trough 113, and then move from the end of the bead-shaped heat cylinder 111 to the tube mouth of the bead-shaped heat cylinder 111, and finally enter the intermediate shell 141. The treated soil in the intermediate shell 141 can be discharged from the discharge trough 142 by opening the partition 143.

[0048] As an implementation method in this embodiment, Figure 5 and Figure 6As shown, a top shaft 150 is fixedly installed on the end wall of the bead-shaped heat cylinder 111, and the top shaft 150 supports the bead-shaped heat cylinder 111. The other end of the top shaft 150 is rotatably connected to the side wall of the workbench 200. The outer wall of the top shaft 150 is rotatably connected to the support ring 151 through a bearing. An exhaust pipe 153 is fixedly installed on the outer wall of the support ring 151. A plurality of through grooves 152 are provided on the inner wall of the support ring 151, and the exhaust area 131 is connected to the exhaust pipe 153 through the through grooves 152. A bearing is installed on the inner wall of the end of the outer cylinder shell 130, and the inner wall of the end of the outer cylinder shell 130 is rotatably connected to the outer wall of the support ring 151 through a bearing. 0 The seal passes through the side wall of the exhaust pipe 153, and a preheating pipe 154 is fixedly installed on the top of the exhaust pipe 153. In the present invention, after removing the semi-volatile organic compounds in the soil, they are gasified and blown into the vent ring 125 from the sealing shell 123 along with the blown air flow, and enter the sealing ring plate 120 through the vent hole 126 on the vent ring 125, and then pass through the air guide groove 122 into the exhaust area 131, and then pass through the through groove 152 into the exhaust pipe 153, and finally enter the preheating pipe 154 from the exhaust pipe 153, and are discharged to the external exhaust gas treatment unit through the preheating pipe 154 for treatment.

[0049] As an implementation method in this embodiment, Figures 2 to 4 As shown, a silo 240 is fixedly installed on the top of the workbench 200, and a feed port 241 is opened on the top of the silo 240. The top of the feed pipe 148 is connected to the inside of the silo 240. The soil in the silo 240 can enter the valve shell 145 through the feed pipe 148. The preheating pipe 154 is sealed and passes through the silo 240, and can preheat the material inside the silo 240. An infrared heating device 230 is fixedly installed on the outer wall of the outer cylinder shell 130. The infrared heating device 230 uses far-infrared spectroscopy technology to convert thermal energy into far-infrared radiation. The high-quality high-temperature resistor flat belt is energized to generate heat energy, and then the heat is effectively transferred to the celestial bead-shaped heat exchanger through the "far-infrared silicon carbide thermal radiation element" with high thermal conductivity and mechanical strength. The inside of the bead-shaped heat cylinder 111 is heated to generate high temperature. In the present invention, the fan is driven to blow air into the air inlet pipe 144, and high temperature is generated in the thermal repair device 100 through the infrared heating device 230. The airflow entering the bead-shaped heat cylinder 111 from the air inlet pipe 144 will be heated, and then pass through the soil discharge trough 113, the strip spiral plate 115, the air vent 126 and the air guide groove 122 to enter the exhaust area 131, and finally pass through the through groove 152 to enter the exhaust pipe 153, and enter the preheating pipe 154 from the exhaust pipe 153 and then be discharged. When entering the preheating pipe 154, the soil in the silo 240 can be preheated, thereby eliminating volatile organic compounds in the soil.

[0050] The working principle of the technical solution provided by the present invention is as follows: the contaminated soil that has undergone preliminary treatment (the moisture content of the contaminated soil is controlled at about 20%, large stones are prevented from entering, the original soil particle size is controlled to be less than 50 mm, and plastic sheets, canvas strips, iron wire and other strips or flocculent objects are strictly prohibited from entering) is discharged into the silo 240 through the feed port 241. At the same time, the fan is driven to blow air into the air inlet pipe 144, and the infrared heating device 230 generates high temperature in the thermal repair device 100. The airflow entering the bead-shaped heat cylinder 111 from the air inlet pipe 144 will be heated, and then pass through the soil discharge groove 113, the strip spiral plate 115, the air vent 126 and the air guide groove 122 to enter the exhaust area 131, and finally pass through the through groove 152 to enter the exhaust pipe 153, and then enter the preheating pipe 154 from the exhaust pipe 153 and be discharged. When entering the preheating pipe 154, the soil in the silo 240 can be preheated, thereby eliminating volatile organic compounds in the soil;

[0051] After the soil in the silo 240 is preheated, the motor 147 is driven to drive the turning roller 146 to rotate, and the soil in the silo 240 is sent into the air inlet pipe 144 through the feed pipe 148 and the valve housing 145. The airflow of the fan outside the air inlet pipe 144 sends the soil in the air inlet pipe 144 into the bead-shaped heat barrel 111. At this time, the driving rotation mechanism 210 drives the two sets of rotating circles 220 to rotate, thereby driving the bead-shaped heat barrel 111 to rotate as a whole. Under the guidance of the spiral guide rail 112 on the inner wall of the bead-shaped heat barrel 111, the soil will move from the front of the bead-shaped heat barrel 111 to the end, and cooperate with the soil guide The guiding effect of the plate 114 discharges the soil in the bead-shaped heat cylinder 111 from the soil discharge trough 113 into the two groups of strip spiral plates 115. At the same time, since the spiral guide rail 112 and the strip spiral plates 115 have opposite rotation directions, the soil outside the bead-shaped heat cylinder 111 will move along the strip spiral plates 115 connected to the soil retaining plate 116, thereby transporting the soil to the end of the strip spiral plates 115. During this process, the infrared heating device 230 can always heat the contaminated soil, thereby removing the semi-volatile organic compounds in the soil, so that they are discharged into the external exhaust gas treatment unit along with the air flow through the preheating pipe 154;

[0052] After the treatment of volatile organic compounds and semi-volatile organic compounds in the soil is completed, the reversing rotation mechanism 210 causes the bead-shaped heat cylinder 111 to reverse. At this time, the treated soil will move along the strip spiral plate 115 on the other side, pass through the soil discharge trough 113, and then move from the end of the bead-shaped heat cylinder 111 to the tube mouth of the bead-shaped heat cylinder 111, and finally enter the transfer shell 141. By opening the partition 143, the treated soil in the transfer shell 141 can be discharged from the discharge trough 142.

[0053] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A soil infrared thermal desorption repair device, comprising a thermal repair device (100) and a workbench (200), characterized in that: A rotating mechanism (210) is installed on the workbench (200). Both output ends of the rotating mechanism (210) are engaged with rotating rings (220). The thermal repair device (100) is installed inside the two rotating rings (220). The thermal repair device (100) includes a tumbling hot soil component (110). The tumbling hot soil component (110) includes a dzi bead-shaped hot cylinder (111). The outer walls at both ends of the dzi bead-shaped hot cylinder (111) are respectively fixedly connected to the inner walls of the two rotating rings (220). A spiral guide rail (112) is fixedly installed on the inner wall of the dzi bead-shaped hot cylinder (111). There are multiple groups of the spiral guide rails (112), and they are arranged at uniform intervals between two adjacent ones. The multiple groups of spiral guide rails (112) are evenly distributed on the inner wall of the dzi bead-shaped hot cylinder (111) according to a spiral line. A soil discharge groove (113) is formed on the end wall of the dzi bead-shaped hot cylinder (111). There are multiple groups of the soil discharge grooves (113), and they are evenly distributed on the outer wall of the dzi bead-shaped hot cylinder (111). Multiple groups of soil guiding plates (114) are fixedly installed on the end inner wall of the dzi bead-shaped hot cylinder (111). The soil guiding plates (114) are used in cooperation with the last spiral guide rail (112). A strip-shaped spiral plate (115) is fixedly installed on the outer wall of the dzi bead-shaped hot cylinder (111). There are multiple groups of the strip-shaped spiral plates (115), and two adjacent strip-shaped spiral plates (115) are communicated with the corresponding soil discharge groove (113). The spiral direction of the spiral guide rail (112) is opposite to the spiral direction of the strip-shaped spiral plate (115). Two retaining soil buckles (116) are fixedly installed on the outer wall in the middle of the strip-shaped spiral plate (115), and the retaining soil buckles (116) are in contact with the outer wall of the dzi bead-shaped hot cylinder (111).

2. A soil infrared thermal desorption remediation device according to claim 1, characterized in that: A sealing ring plate (120) is fixedly installed on the outer wall in the middle of the dzi bead-shaped hot cylinder (111). An L-shaped ring plate (121) is fixedly installed on the end wall of the sealing ring plate (120). A gap is provided between the bottom of the L-shaped ring plate (121) and the dzi bead-shaped hot cylinder (111). Multiple air guiding grooves (122) are formed on the left side wall of the L-shaped ring plate (121). A sealing shell (123) is fixedly installed on the right outer wall of the L-shaped ring plate (121) through bolts. The outer walls of the multiple groups of strip-shaped spiral plates (115) are all in contact with the inner wall of the sealing shell (123), and the end inner wall of the sealing shell (123) is in sealed contact with the end wall of the dzi bead-shaped hot cylinder (111). An outer cylinder shell (130) is fixedly installed at the top of the left inner wall of the L-shaped ring plate (121). An exhaust area (131) is formed between the inner wall of the outer cylinder shell (130) and the outer wall of the sealing shell (123). The exhaust area (131) is communicated with the inside of the L-shaped ring plate (121), the inside of the sealing ring plate (120), and the inside of the sealing shell (123).

3. The soil infrared thermal desorption remediation device according to claim 2, characterized in that: A sealing retaining ring (124) is fixedly installed on the inner wall of the sealing ring plate (120), and the sealing retaining ring (124) is sleeved on the outer wall of the sky bead-shaped heat cylinder (111). A plurality of vent rings (125) are sleeved on the middle outer wall of the sky bead-shaped heat cylinder (111), and the plurality of vent rings (125) are evenly spaced. The top outer wall of the vent ring (125) at the end is sealed and fitted with the left outer wall of the sky bead-shaped ring plate (121). A plurality of vent holes (126) are evenly opened on the vent ring (125). The interior of the sealing shell (123) is connected to the interior of the sealing ring plate (120) through the plurality of vent holes (126), and the interior of the sealing ring plate (120) is connected to the interior of the exhaust area (131) through the plurality of air guide grooves (122).

4. The soil infrared thermal desorption remediation device according to claim 2, characterized in that: An introduction component (140) is installed on the left side of the rolling hot soil component (110), and the introduction component (140) includes a transfer shell (141). The inner wall of the transfer shell (141) is rotatably connected to the tube mouth of the sky bead-shaped hot cylinder (111) through a bearing. The transfer shell (141) is fixedly connected to the workbench (200). A discharge groove (142) is opened at the bottom of the transfer shell (141). A partition (143) is inserted into the inner wall of the middle of the discharge groove (142). The transfer shell (141) is fixedly connected to the workbench (200). ) is fixedly installed on the left side of the air intake pipe (144), the left side of the air intake pipe (144) is connected to an external fan, the top of the air intake pipe (144) is fixedly installed with a valve housing (145), the inner wall of the valve housing (145) is rotatably connected to a turning roller (146), the outer wall of the valve housing (145) is fixedly installed with a motor (147), the output shaft of the motor (147) is fixedly connected to the end wall of the turning roller (146), and the top valve port of the valve housing (145) is fixedly installed with a feed pipe (148).

5. The soil infrared thermal desorption remediation device according to claim 4, characterized in that: The end wall of the bead-shaped heat cylinder (111) is fixedly mounted with a top shaft (150), the other end of the top shaft (150) is rotatably connected to the side wall of the workbench (200), the outer wall of the top shaft (150) is rotatably connected to a support ring (151) via a bearing, the outer wall of the support ring (151) is fixedly mounted with an exhaust pipe (153), the inner wall of the support ring (151) is provided with multiple groups of through grooves (152), and the exhaust area (131) is connected to the exhaust pipe (153) via the through grooves (152), the inner wall of the end of the outer cylinder shell (130) is mounted with a bearing, and the inner wall of the end of the outer cylinder shell (130) is rotatably connected to the outer wall of the support ring (151) via a bearing, the top shaft (150) seals and passes through the side wall of the exhaust pipe (153), and a preheating pipe (154) is fixedly mounted on the top of the exhaust pipe (153).

6. The soil infrared thermal desorption remediation device according to claim 5, characterized in that: A silo (240) is fixedly mounted on the top of the workbench (200), a feed port (241) is provided on the top of the silo (240), a top port of the feed pipe (148) is connected to the interior of the silo (240), the preheating pipe (154) is sealed and passes through the silo (240), and preheats the material inside the silo (240), and an infrared heating device (230) is fixedly mounted on the outer wall of the outer cylinder shell (130).

Images