In-situ thermal desorption efficient heating device for soil remediation

Abstract

The in-situ thermal desorption efficient heating device for soil remediation comprises a base, a spraying mechanism is fixedly installed on one side of the top of the base, a heating box is fixedly installed on the other side of the top of the base, a discharging opening is formed in the bottom of the heating box in a penetrating mode, and a heating layer is arranged on the lower portion in the heating box. A feeding hopper is connected to the top of the heating box in a penetrating mode, supporting legs are symmetrically installed on the two sides of the outer portion of the feeding hopper and fixedly connected with the heating box, a valve is arranged below the feeding hopper, a connecting pipe is connected to the upper portion of one side of the heating box in a penetrating mode, and a valve is arranged on one side of the interior of the connecting pipe. According to the soil remediation device, the soil can be uniformly heated when being heated, harmful substances in the soil can be separated more quickly, soil accumulation is avoided, uneven heating of the soil is avoided, and the soil remediation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation, and particularly relates to an in-situ thermal desorption high-efficiency heating device for soil remediation. Background Technique

[0002] Thermal desorption refers to the process of separating organic pollutants and metallic mercury in contaminated soil by direct or indirect heat exchange methods, causing them to volatilize by heating, and effectively collecting and treating the volatilized pollutants.

[0003] Publication No. CN215314688U discloses a main device for in-situ thermal desorption and remediation of contaminated soil. In this patent, by providing a cross plate and atomizing nozzles, harmful gases in the heating chamber are transferred to the purification chamber through an exhaust pipe. Then, by starting a water pump, the liquid medicine in the liquid medicine tank is transferred to the spraying plate through a water pipe and sprayed out from the atomizing nozzles at the lower end of the spraying plate. Thus, the liquid medicine can be sprayed into the purification chamber in an atomized form, enabling the liquid medicine to fuse with the harmful gases, thereby achieving the purification of harmful gases and preventing direct discharge of harmful gases to pollute the environment. At the same time, by starting a rotating motor, the rotating rod drives the stirring plate and the cross plate to stir the harmful gases and atomized liquid medicine in the purification chamber, enabling the harmful gases and atomized liquid medicine to fuse faster and more thoroughly, thereby preventing environmental pollution. However, the following problems still exist in the actual use of this patent:

[0004] By fusing the liquid medicine with the harmful gases, the harmful gases can be purified to prevent direct discharge of harmful gases to pollute the environment. However, during actual use, when the soil is heated in the heating pipe after being crushed, the soil inside the heating pipe cannot be evenly heated, and the soil is prone to accumulation after entering the heating pipe. After the soil accumulates, the soil inside is unevenly heated, which will increase the soil heating time and reduce the soil remediation efficiency.

[0005] An in-situ thermal desorption high-efficiency heating device for soil remediation is proposed to solve the problems mentioned above. Content of the Utility Model

[0006] The purpose of the utility model is to provide an in-situ thermal desorption high-efficiency heating device for soil remediation to solve the problem proposed in the above background technique that currently, by fusing the liquid medicine with the harmful gases, the harmful gases can be purified to prevent direct discharge of harmful gases to pollute the environment. However, during actual use, when the soil is heated in the heating pipe after being crushed, the soil inside the heating pipe cannot be evenly heated, and the soil is prone to accumulation after entering the heating pipe. After the soil accumulates, the soil inside is unevenly heated, which will increase the soil heating time and reduce the soil remediation efficiency.

[0007] To achieve the above object, the present utility model provides the following technical solutions: An in-situ thermal desorption high-efficiency heating device for soil remediation, comprising a base;

[0008] On one side of the top of the base, a spraying mechanism is fixedly installed, and on the other side of the top of the base, a heating box is fixedly installed. Moreover, a discharge port is formed through the bottom of the heating box, and a heating layer is arranged below the interior of the heating box;

[0009] It further includes:

[0010] A feed hopper is connected through the top of the heating box. On both sides of the outside of the feed hopper, support legs are symmetrically installed, and the support legs are fixedly connected to the heating box. Moreover, a valve is arranged below the feed hopper. On the upper side of one side of the heating box, a connecting pipe is connected through. Moreover, a valve is arranged on one side inside the connecting pipe, and the connecting pipe is connected through to the spraying mechanism. Moreover, a rotating component is arranged inside and outside the heating box;

[0011] Among them, the rotating component includes a support plate fixedly installed below one side of the heating box. On the top of the support plate, a driving motor is fixedly installed. Moreover, a rotating shaft is fixedly installed at the output end of the driving motor, and the rotating shaft is rotatably connected to the heating box. Moreover, two first belt pulleys are symmetrically installed on both sides of the outside of the rotating shaft;

[0012] Among them, a stirring rod is fixedly installed on the outside of the rotating shaft. On one side of the stirring rod, a plurality of mounting rods are fixedly installed, and one end of each of the plurality of mounting rods away from the stirring rod is fixedly connected to the rotating shaft.

[0013] Preferably, on one side of the top of the heating box, fixing frames are symmetrically installed. Inside the two fixing frames, a rotating rod is rotatably connected. Moreover, a second belt pulley is fixedly installed at one end of the rotating rod, and on one side of the second belt pulley, it is rotationally connected to one of the first belt pulleys through a belt.

[0014] Preferably, a rotating shaft is rotatably connected inside the feed hopper. On one side of the outside of the rotating shaft, a plurality of cutting blades are symmetrically installed. Moreover, on one side of the outside of the rotating shaft, a support frame is rotatably connected, and the support frame is fixedly connected to one of the fixing frames.

[0015] Preferably, a third belt pulley is fixedly installed at one end of the rotating shaft away from the feed hopper, and the third belt pulley is rotationally connected to the second belt pulley through a belt.

[0016] Preferably, a rotating rod is rotatably connected below the connecting pipe inside the heating box. At one end of the rotating rod, a rotating fan blade is fixedly installed. Moreover, a fixed cover is fixedly installed outside the rotating fan blade inside the heating box. At the other end of the rotating rod, a fourth belt pulley is fixedly installed, and the fourth belt pulley is rotationally connected to the other first belt pulley through a belt.

[0017] Preferably, a telescopic hose is connected through the top end inside the heating box below the feed hopper, a fixing ring is fixedly installed on one side of the telescopic hose, a support rod is hinged on one side of the fixing ring, and the support rod is fixedly connected with the heating box.

[0018] Preferably, a turntable is fixedly installed at one end of the rotating rod away from the second pulley, a column block is fixedly installed on one side of the turntable, a movable frame is slidably connected to the outside of the column block, a movable rod is fixedly installed at the bottom of the movable frame, the movable rod is slidably connected with the heating box, a mounting plate is fixedly installed on the other side of the fixing ring, fixing blocks are symmetrically installed on the top of the mounting plate, a guide rod is fixedly installed between the fixing blocks, a movable sleeve is slidably connected to the outside of the guide rod, and the movable rod is hinged with the movable sleeve.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the in-situ thermal desorption high-efficiency heating device for soil remediation, a rotating component is arranged inside and outside the heating box, so that when the soil is heated, the soil can be evenly heated, the harmful substances inside the soil can be separated faster, and the soil accumulation is avoided, so as to avoid uneven heating of the soil and improve the soil remediation efficiency. The specific content is as follows:

[0020] 1. A rotating component is provided inside and outside the heating box. When repairing the soil, the soil is put into the feeding hopper. The driving motor is started to drive the rotating shaft to rotate. The valve inside the connecting pipe is in the closed state, and the valve below the feeding hopper is opened. The rotation of the rotating shaft drives the second pulley to rotate through the first pulley and belt on one side. After the second pulley rotates, it drives the rotating rod to rotate. At the same time, the second pulley drives the third pulley to rotate through the belt, so that the rotating shaft rotates. The cutting knife is used to crush the soil to prevent soil caking from affecting subsequent heating, so that the soil falls into the heating box. When the soil is added, the rotating shaft drives the stirring rod and the mounting rod to rotate, which can stir the soil. After the soil is added, the valve below the feeding hopper is closed with a certain gap, so that air can enter the heating box when the rotating fan blade rotates. The valve on the connecting pipe is opened, and the soil is heated through the heating layer. Under the stirring action of the stirring rod and the mounting rod, the soil can be heated evenly, avoiding uneven heating caused by the soil remaining stationary all the time. The harmful substances generated after the soil is heated can become gas. While the rotating shaft rotates, the first pulley on the other side drives the rotating rod to rotate, so that the rotating fan blade rotates to create a negative pressure in the heating box, which can drain the gas, so that the gas can enter the spraying mechanism through the connecting pipe. The spraying mechanism is the same as the component for gas purification in the comparative document (CN215314688U). Through the rotating component, when the soil is heated, the soil can be heated evenly, the harmful substances inside the soil can be separated faster, and the soil can be prevented from accumulating, avoiding uneven heating of the soil and improving the soil repair efficiency;

[0021] 2. When the soil is added to the heating box, the rotation of the rotating shaft can drive the turntable to rotate. After the turntable rotates, it drives the column block to rotate in a circle. After the column block rotates in a circle, it can drive the movable frame to move through the sliding connection with the movable frame. Through the rotation of the turntable, the movable frame can be driven to move back and forth, and then drive the movable rod to move up and down reciprocally on the heating box. While the movable rod is moving, it can drive the movable sleeve to slide on the guide rod, and then drive the fixed ring to rotate on the support rod through the mounting plate, driving the telescopic hose to swing reciprocally. The soil can enter the inside of the heating box through the telescopic hose. The continuous swinging of the telescopic hose can expand the range of soil addition, avoiding the accumulation of soil at the same position after the soil is added to the heating box, avoiding uneven spreading of the soil during subsequent soil heating, avoiding uneven heating of the soil, and improving the soil repair efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front structural schematic diagram of the present utility model;

[0023] Figure 2 is a front sectional structural schematic diagram of the heating box of the present utility model;

[0024] Figure 3For the present utility model Figure 2 Schematic enlarged structure diagram of area A in

[0025] Figure 4 Schematic side structure diagram of the turntable of the present utility model;

[0026] Figure 5 For the present utility model Figure 2 Schematic enlarged structure diagram of area B in

[0027] In the figure: 1. Base; 101. Spraying mechanism; 102. Heating box; 103. Discharge port; 104. Feed hopper; 105. Support leg; 106. Connecting pipe; 107. Heating layer; 2. Rotating assembly; 201. Support plate; 202. Driving motor; 203. Rotating shaft; 204. First pulley; 205. Stirring rod; 206. Mounting rod; 207. Fixed bracket; 208. Rotating rod; 209. Second pulley; 210. Rotating shaft; 211. Third pulley; 212. Support frame; 213. Rotating rod; 214. Rotating fan blade; 215. Fixed cover; 216. Fourth pulley; 217. Telescopic hose; 218. Fixed ring; 219. Support rod; 220. Turntable; 221. Column block; 222. Movable frame; 223. Movable rod; 224. Mounting plate; 225. Fixed block; 226. Guide rod; 227. Movable sleeve. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-5, the present utility model provides a technical solution: an in-situ thermal desorption high-efficiency heating device for soil remediation, including a base 1. On one side of the top of the base 1, a spraying mechanism 101 is fixedly installed, and on the other side of the top of the base 1, a heating box 102 is fixedly installed. And a discharge port 103 is formed through the bottom of the heating box 102. An electromagnetic valve is arranged inside the discharge port 103 to facilitate discharging. Moreover, a heating layer 107 is arranged below the inside of the heating box 102. It further includes: a feed hopper 104 is connected through the top of the heating box 102. And on both sides of the outside of the feed hopper 104, support legs 105 are symmetrically installed, and the support legs 105 are fixedly connected to the heating box 102. Moreover, a valve is arranged below the feed hopper 104. And on the upper side of one side of the heating box 102, a connecting pipe 106 is connected through. And a valve is arranged on one side inside the connecting pipe 106. And the connecting pipe 106 is connected through to the spraying mechanism 101. And a rotating assembly 2 is arranged inside and outside the heating box 102. Among them, the rotating assembly 2 includes a support plate 201 fixedly installed below one side of the heating box 102. And on the top of the support plate 201, a driving motor 202 is fixedly installed. And on the output end of the driving motor 202, a rotating shaft 203 is fixedly installed. And the rotating shaft 203 is rotatably connected to the heating box 102. And on both sides of the outside of the rotating shaft 203, first belt pulleys 204 are symmetrically installed. Among them, a stirring rod 205 is fixedly installed on the outside of the rotating shaft 203. And on one side of the stirring rod 205, a plurality of mounting rods 206 are fixedly installed. And one ends of the plurality of mounting rods 206 far from the stirring rod 205 are all fixedly connected to the rotating shaft 203. Through the rotating assembly 2, when heating the soil, the soil can be heated evenly, and the harmful substances inside the soil can be separated faster, and the accumulation of the soil can be avoided, preventing uneven heating of the soil and improving the soil remediation efficiency.

[0030] On one side of the top of the heating box 102, fixing brackets 207 are symmetrically installed. Inside the two fixing brackets 207, a rotating rod 208 is rotatably connected. One end of the rotating rod 208 is fixedly installed with a second pulley 209. On one side of the second pulley 209, it is rotatably connected to a first pulley 204 on one side through a belt, so that the rotation of the rotating shaft 203 can drive the rotation of the rotating rod 208. Inside the feed hopper 104, a rotating shaft 210 is rotatably connected. On the outer side of the rotating shaft 210, a number of cutting knives are symmetrically installed. On the outer side of the rotating shaft 210, a support frame 212 is rotatably connected. The support frame 212 is fixedly connected to one side of the fixing bracket 207, which can crush the soil. One end of the rotating shaft 210 away from the feed hopper 104 is fixedly installed with a third pulley 211. The third pulley 211 is rotatably connected to the second pulley 209 through a belt, so that the rotation of the rotating rod 208 can drive the rotation of the rotating shaft 210. Inside the heating box 102, below the connecting pipe 106, a rotating rod 213 is rotatably connected. One end of the rotating rod 213 is fixedly installed with a rotating fan blade 214. Inside the heating box 102, outside the rotating fan blade 214, a fixing cover 215 is fixedly installed. The other end of the rotating rod 213 is fixedly installed with a fourth pulley 216. The fourth pulley 216 is rotatably connected to the first pulley 204 on the other side through a belt, so that the rotation of the rotating shaft 203 can drive the rotation of the rotating rod 213. At the top inside the heating box 102, below the feed hopper 104, a telescopic hose 217 is connected through. On the outer side of the telescopic hose 217, a fixing ring 218 is fixedly installed. On one side of the fixing ring 218, a support rod 219 is hinged. The support rod 219 is fixedly connected to the heating box 102, so that the soil can be fed through the telescopic hose 217. One end of the rotating rod 208 away from the second pulley 209 is fixedly installed with a turntable 220. On one side of the turntable 220, a column block 221 is fixedly installed. The outer side of the column block 221 is slidably connected with a movable frame 222. The bottom of the movable frame 222 is fixedly installed with a movable rod 223. The movable rod 223 is slidably connected to the heating box 102. On the other side of the fixing ring 218, a mounting plate 224 is fixedly installed. On the top of the mounting plate 224, fixing blocks 225 are symmetrically installed. Between the fixing blocks 225, a guide rod 226 is fixedly installed. The outer side of the guide rod 226 is slidably connected with a movable sleeve 227. The movable rod 223 is hinged to the movable sleeve 227, so that the rotation of the rotating rod 208 can drive the telescopic hose 217 to swing reciprocally and increase the feeding range.

[0031] Working principle: Before using this in-situ thermal desorption and high-efficiency heating device for soil remediation, it is necessary to first check the overall situation of the device to ensure that it can work normally. According to Figure 1 - Figure 5As shown in the figure, a rotating assembly 2 is provided inside and outside the heating box 102. When repairing the soil, the soil is put into the inside of the feed hopper 104. The driving motor 202 is started to drive the rotating shaft 203 to rotate. The valve inside the connecting pipe 106 is in a closed state, and the valve below the feed hopper 104 is opened. The rotation of the rotating shaft 203 drives the second pulley 209 to rotate through the first pulley 204 on one side and the belt. After the second pulley 209 rotates, it drives the rotating rod 208 to rotate. At the same time as the second pulley 209 rotates, it drives the third pulley 211 to rotate through the belt, so that the rotating shaft 210 rotates, and the soil is crushed by the cutting knife to prevent the soil from caking and affecting subsequent heating, so that the soil falls into the heating box 102. At the same time as the soil is added, the rotating shaft 203 drives the stirring rod 205 and the mounting rod 206 to rotate, which can stir the soil. After the soil is added, the valve below the feed hopper 104 is closed and a certain gap is left, so that air can enter the heating box 102 when the rotating fan blade 214 rotates. The valve on the connecting pipe 106 is opened, and the soil is heated by the heating layer 107. The soil can be evenly heated under the stirring action of the stirring rod 205 and the mounting rod 206, avoiding uneven heating caused by the soil remaining stationary all the time. The harmful substances generated after the soil is heated can become gas. At the same time as the rotating shaft 203 rotates, the first pulley 204 on the other side drives the rotating rod 213 to rotate, so that the rotating fan blade 214 rotates to produce a negative pressure effect inside the heating box 102, which can drain the gas, so that the gas can enter the spraying mechanism 101 through the connecting pipe 106. The spraying mechanism 101 is the same as the component for purifying the gas in the comparative document (CN215314688U). By means of the rotating assembly 2, when the soil is heated, the soil can be evenly heated, the harmful substances inside the soil can be separated more quickly, and the soil is prevented from accumulating, avoiding uneven heating of the soil and improving the soil repair efficiency;

[0032] When the soil is added to the heating box 102, the rotation of the rotating shaft 210 can drive the rotation of the turntable 220. After the turntable 220 rotates, it drives the column block 221 to rotate in a circle. After the column block 221 rotates in a circle, it can drive the movable frame 222 to move through the sliding connection with the movable frame 222. By rotating the turntable 220, the movable frame 222 can be driven to move reciprocally, thereby driving the movable rod 223 to move up and down reciprocally on the heating box 102. While the movable rod 223 is moving, it can drive the movable sleeve 227 to slide on the guide rod 226, and then push the fixed ring 218 to rotate on the support rod 219 through the mounting plate 224, driving the telescopic hose 217 to swing reciprocally. The soil can enter the interior of the heating box 102 through the telescopic hose 217. The continuous swinging of the telescopic hose 217 can expand the range of soil addition, prevent the soil from accumulating at the same position after being added to the heating box 102, avoid the soil not being evenly flattened during subsequent soil heating, avoid uneven heating of the soil, and improve the soil repair efficiency.

[0033] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An in-situ thermal desorption high-efficiency heating device for soil remediation, comprising a base (1); On one side of the top of the base (1), a spraying mechanism (101) is fixedly installed, and on the other side of the top of the base (1), a heating box (102) is fixedly installed. Moreover, a discharge port (103) is formed through the bottom of the heating box (102), and a heating layer (107) is arranged below the interior of the heating box (102); It is characterized in that It further includes: The top of the heating box (102) is connected through a feed hopper (104). On both sides of the outside of the feed hopper (104), support legs (105) are symmetrically installed, and the support legs (105) are fixedly connected to the heating box (102). Moreover, a valve is arranged below the feed hopper (104). On one side above the heating box (102), a connecting pipe (106) is connected through. Moreover, a valve is arranged on one side inside the connecting pipe (106), and the connecting pipe (106) is connected through to the spraying mechanism (101). Moreover, a rotating assembly (2) is arranged inside and outside the heating box (102); Among them, the rotating assembly (2) includes a support plate (201) fixedly installed below one side of the heating box (102). On the top of the support plate (201), a driving motor (202) is fixedly installed. Moreover, the output end of the driving motor (202) is fixedly installed with a rotating shaft (203), and the rotating shaft (203) is rotatably connected to the heating box (102). Moreover, on both sides of the outside of the rotating shaft (203), first belt pulleys (204) are symmetrically installed; Among them, a shifting rod (205) is fixedly installed on the outside of the rotating shaft (203). On one side of the shifting rod (205), a plurality of mounting rods (206) are fixedly installed, and one ends of the plurality of mounting rods (206) far from the shifting rod (205) are all fixedly connected to the rotating shaft (203).

2. The in-situ thermal desorption high-efficiency heating device for soil remediation according to claim 1, wherein: On one side of the top of the heating box (102), fixing frames (207) are symmetrically installed. Inside the two fixing frames (207), a rotating rod (208) is rotatably connected. Moreover, one end of the rotating rod (208) is fixedly installed with a second belt pulley (209), and one side of the second belt pulley (209) is rotationally connected to one side of the first belt pulley (204) through a belt.

3. The in-situ thermal desorption high-efficiency heating device for soil remediation according to claim 2, characterized in that: Inside the feed hopper (104), a rotating shaft (210) is rotatably connected. On one side of the outside of the rotating shaft (210), a plurality of cutting knives are symmetrically installed. Moreover, on one side of the outside of the rotating shaft (210), a support frame (212) is rotatably connected, and the support frame (212) is fixedly connected to one side of the fixing frame (207).

4. The in-situ thermal desorption high-efficiency heating device for soil remediation according to claim 3, characterized in that: One end of the rotating shaft (210) far from the feed hopper (104) is fixedly installed with a third belt pulley (211), and the third belt pulley (211) is rotationally connected to the second belt pulley (209) through a belt.

5. An in-situ thermal desorption high-efficiency heating device for soil remediation according to claim 1, characterized in that: Inside the heating box (102), a rotating rod (213) is rotatably connected below the connecting pipe (106). One end of the rotating rod (213) is fixedly installed with a rotating fan blade (214). Inside the heating box (102), a fixed cover (215) is fixedly installed outside the rotating fan blade (214). The other end of the rotating rod (213) is fixedly installed with a fourth pulley (216), and the fourth pulley (216) is rotatably connected to the first pulley (204) on the other side through a belt.

6. An in-situ thermal desorption high-efficiency heating device for soil remediation according to claim 2, characterized in that: At the inner top of the heating box (102) below the feed hopper (104), a telescopic hose (217) is penetrated and connected. On one side of the outside of the telescopic hose (217), a fixed ring (218) is fixedly installed. One side of the fixed ring (218) is hinged with a support rod (219), and the support rod (219) is fixedly connected to the heating box (102).

7. An in-situ thermal desorption high-efficiency heating device for soil remediation according to claim 6, characterized in that: One end of the rotating rod (208) away from the second pulley (209) is fixedly installed with a turntable (220). One side of the turntable (220) is fixedly installed with a column block (221). An activity frame (222) is slidably connected to the outside of the column block (221). The bottom of the activity frame (222) is fixedly installed with an activity rod (223). The activity rod (223) is slidably connected to the heating box (102). The other side of the fixed ring (218) is fixedly installed with a mounting plate (224). On the top of the mounting plate (224), fixing blocks (225) are symmetrically installed. A guide rod (226) is fixedly installed between the fixing blocks (225). An activity sleeve (227) is slidably connected to the outside of the guide rod (226). The activity rod (223) is hinged to the activity sleeve (227).

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