A new type of in-situ two-stage combined soil remediation device

Abstract

The utility model discloses a novel in-situ two-stage combined soil remediation device, which is characterized by: comprising a remediation device body, the remediation device body is connected to a traction machine through an integral support frame, and an integral moving wheel is arranged below the integral support frame; the remediation device body comprises a main frame, a gear transmission device is slidably arranged in the main frame, and a primary mixing shaft and a secondary mixing shaft are arranged on two output shafts of the gear transmission device respectively; a primary crushing and mixing assembly is arranged on the primary mixing shaft; a secondary crushing and mixing assembly is arranged on the secondary mixing shaft; and a mixing motor and a medicine box are arranged above the gear transmission device. The utility model provides a novel in-situ two-stage combined soil remediation device with convenient control and high efficiency, which realizes the purpose of effectively improving the soil crushing rate and enhancing the mixing property of medicine and soil in the process of heavy metal treatment in shallow depth soil.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection engineering, and specifically relates to a novel in-situ two-level combined soil remediation device. Background Art

[0002] At present, various common in-situ soil remediation devices mainly change the soil particle size and increase the degree of binding with the agent through strong cutting, rolling and other forms. Among the equipment currently used for the remediation of heavy metal-contaminated soil on site, common in-situ mixing equipment mainly includes two categories: turner / drum mixer and spiral drill / spraying machine. The advantage is that it is highly universal for the site, but the disadvantage is that the mixing performance of soil and remediation agent is not strong; it cannot meet the soil remediation requirements. In particular, the in-situ soil remediation devices developed for shallow soil depth (within 1 meter) have problems such as low efficiency, difficult equipment maintenance and short life; either the in-situ soil remediation device has a high crushing efficiency, but the efficiency of the uniform mixing of the agent and the soil is low, or the in-situ soil remediation device has a high efficiency of uniform mixing of the soil, but the crushing rate is low, and it is impossible to take both into account at the same time to meet the current soil remediation environmental requirements. It is not conducive to the scale and high quality of the in-situ soil remediation device, and at the same time affects the efficiency of heavy metal soil remediation.

[0003] In summary, how to provide a new in-situ two-stage combined soil remediation device to address the problems of low crushing rate, poor mixing, and low degree of automation in the process of heavy metal treatment in shallow soil (less than 1 meter), realize diversified operation modes of automated soil crushing, drug discharge, and mixing, save a lot of labor in the soil remediation process, improve the passivation efficiency of soil heavy metals, and solve the problems of low efficiency, short service life, complex structure, and convenient control of traditional ordinary soil crushing and remediation devices, which has become a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] The utility model aims to provide a novel in-situ two-stage combined soil remediation device to solve the problems in the prior art.

[0005] The utility model is realized by the following technical scheme: a novel in-situ two-stage combined soil remediation device, characterized in that: it comprises a remediation device body, the remediation device body is connected to a tractor through an integral support frame, and an integral moving wheel is arranged below the integral support frame;

[0006] The repair device body comprises a main body frame, a gear transmission device is slidably arranged in the main body frame, and a primary mixing shaft and a secondary mixing shaft are respectively arranged on two output shafts of the gear transmission device;

[0007] A first-stage crushing and mixing component is arranged on the first-stage mixing shaft;

[0008] A secondary crushing and mixing component is arranged on the secondary mixing shaft;

[0009] A mixing motor and a medicine box are arranged above the gear transmission device.

[0010] Furthermore: connecting ear plates I are respectively provided on the front and rear sides of the gear transmission device, and the connecting ear plates I are fixedly connected to the piston rod of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is fixed on the main frame; connecting ear plates II are respectively provided on the left and right sides of the gear transmission device, and the connecting ear plates II are sleeved on the outer side of the guide rod and slidably cooperate with the guide rod, and the two ends of the guide rod are respectively fixed to the main frame through horizontal support seats.

[0011] Furthermore: the discharge port of the medicine box is connected with the medicine discharge port through the material feeding hole; the material feeding hole runs through the first-level mixing shaft, and the medicine discharge port is located at the lower end of the first-level mixing shaft.

[0012] Furthermore: the mixing motor is connected to the gear transmission device through the mixing motor support plate.

[0013] Furthermore: the first-stage crushing and mixing component includes a positioning tip, a scraper, a four-leaf crushing knife, a single-leaf crushing knife and a first-stage mixing spiral arranged from bottom to top.

[0014] Furthermore: the secondary crushing and homogenizing component includes a positioning tip at the bottom, a secondary homogenizing spiral and a secondary homogenizing crushing-mixing roller at the top.

[0015] Further: the traction machine is a tractor.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a new type of in-situ two-stage combined soil remediation device with convenient control and high efficiency, which realizes that in the process of heavy metal treatment in shallow depth soil, the soil crushing rate is effectively improved, the mixing of medicine and soil is enhanced, the degree of automation is improved, and the passivation efficiency of heavy metals in soil is effectively improved. The two-stage double-helix mixing device improves the mixing effect of medicine-soil, so that the passivation efficiency of heavy metal soil in soil is effectively improved; the whole machine has a high degree of automation, which improves efficiency, reduces costs, and is conducive to improving soil structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is the front view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the main device of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the main device of the utility model;

[0021] Figure 5 It is a schematic diagram of the overall structure of the gear transmission device;

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the gear transmission device.

[0023] Explanation of the serial numbers in the figure: 1. Traction machine; 2. Connecting rod; 3. Integral support frame; 4. Integral moving wheel; 6. Inlet of medicine box; 7. Medicine box; 8. Main frame; 9. Even mixing motor; 10. Even mixing motor support plate; 11. Gear transmission device; 12. Medicine box connecting plate; 13. Hydraulic cylinder; 14. Connecting ear plate I; 15. Connecting ear plate II; 16. Linear bearing; 17. Guide rod; 18. Horizontal support seat; 19. Flange; 20. Retaining cover; 21. Positioning tip; 22. Scraper; 23. Four-leaf crushing knife; 24. Single-leaf crushing knife; 25. Primary even mixing spiral; 26. Primary even mixing shaft; 27. Secondary even mixing shaft; 28. Secondary even mixing spiral; 29. ​​Secondary even mixing crushing-mixing roller; 30. Discharge port, 31. Primary crushing and even mixing component, 32. Secondary crushing and even mixing component, 33. Feed hole. DETAILED DESCRIPTION

[0024] like Figure 1-6 As shown, the utility model provides a novel in-situ two-stage combined soil remediation device, which includes a remediation device body, which is connected to a tractor 1 through an integral support frame 3, and an integral moving wheel 4 is arranged below the integral support frame 3; the support frame 3 is connected to the tractor 1 through a connecting rod 2;

[0025] The repair device body comprises a main frame 8, in which a gear transmission device 11 is slidably arranged, and a primary mixing shaft 26 and a secondary mixing shaft 27 are respectively arranged on two output shafts of the gear transmission device;

[0026] A first-stage crushing and mixing assembly 31 is arranged on the first-stage mixing shaft;

[0027] A secondary crushing and mixing assembly 32 is provided on the secondary mixing shaft;

[0028] A mixing motor 9 and a medicine box 7 are arranged above the gear transmission device. The medicine box 7 is connected to a medicine discharge port 30 at the lower part of the first-stage mixing shaft through a feeding hole 33 .

[0029] Preferably: the gear transmission device 11 includes a gear box 110, a driving shaft 113 and a driving gear 114, a driven shaft 111 and a driven gear 112. The driving shaft 113 and the driven shaft 111 are respectively rotatably matched with the gear box body; the driving shaft 113 and the driving gear 114 are fixedly connected or keyed, and the driven shaft 111 and the driven gear 112 are fixedly connected or keyed; the driving gear and the driven gear are meshed or meshed through a third gear. The top of the driving shaft 113 is also matched with the output shaft of the mixing motor through a coupling or a gear. Furthermore, the gear ratio of the driven gear to the driving gear is (1.5-3): 1, so that the first-stage mixing shaft can obtain a larger torque and the second-stage mixing shaft can obtain a higher speed.

[0030] Preferably: a connecting ear plate I 14 is respectively provided on the front and rear sides of the gear transmission device, the connecting ear plate I is fixedly connected to the piston rod of the hydraulic cylinder 13, and the cylinder body of the hydraulic cylinder is fixed on the main frame; a connecting ear plate II 15 is respectively provided on the left and right sides of the gear transmission device, the connecting ear plate II is sleeved on the outer side of the guide rod 17 and slidably cooperates with the guide rod, and the two ends of the guide rod are respectively fixed to the main frame through the horizontal support seat 18. Further, a linear bearing 16 is provided in the inner hole of the connecting ear plate II to improve the cooperation effect.

[0031] Preferably: the discharge port of the medicine box is connected with the discharge port 30 through the feed hole 33; the feed hole passes through the driven shaft and the main body of the first-level mixing shaft (the lowest part does not pass through) and the lower part is connected with the discharge port 30, and the discharge port is located at the lower end of the first-level mixing shaft and opens radially.

[0032] Preferably, the medicine box is arranged on the gear box 110 via a medicine box connecting plate 12, and the medicine box connecting plate can be a bracket or a flange plate etc. fixed to the gear box by bolting. A medicine box inlet 6 for placing medicine is arranged above the medicine box.

[0033] Preferably, the mixing motor 9 is connected to the gear box 110 of the gear transmission device through the mixing motor support plate 10 .

[0034] Preferably, the first-stage crushing and homogenizing assembly includes a positioning tip 21, a scraper 22, a four-leaf crushing knife 23, a single-leaf crushing knife 24 and a first-stage homogenizing spiral 25 arranged from bottom to top.

[0035] Among them, the cross-section of the positioning tip 21 is triangular, the lower angle is 45 degrees, and the thread is set at the lower end of the mixing shaft, which can easily drill through the soil layer when rotating. The scraper 22 is located above the positioning tip and includes multiple arc-shaped scraper blades, which can effectively destroy and mix the soil layer. The four-leaf crushing knife 23 has four rectangular blades, which are evenly arranged on the primary mixing shaft. The blades are provided with serrations to improve the mixing effect. The single-leaf crushing knife 24 is similar in shape to the four-leaf crushing knife and slightly smaller in thickness. There can be one or more, which are respectively arranged on the primary mixing shaft. The primary mixing spiral 25 is rotatably arranged on the primary mixing, and its lower part can be cross-arranged with the single-leaf crushing knife or the four-leaf crushing knife (but it does not affect the spiral shape).

[0036] Preferably, the secondary crushing and homogenizing component comprises a positioning tip located at the lower part of the secondary homogenizing shaft, and a secondary homogenizing spiral 28 and a secondary homogenizing crushing-mixing roller 29 located at the upper part thereof.

[0037] The secondary homogenizing crushing-mixing roller is cylindrical and radially arranged on the secondary homogenizing shaft. It is arranged crosswise with the secondary homogenizing spiral 28 and does not affect the spiral shape.

[0038] Preferably, each component in the crushing and homogenizing assembly can be connected to the corresponding shaft by welding or threaded connection, or a sleeve can be provided on each component, which is sleeved on the shaft and positioned and fixed by bolts or keys.

[0039] Preferably, the traction machine is a tractor.

[0040] Preferably: the primary mixing shaft and the secondary mixing shaft are connected to the output shaft of the gear transmission device 11 through flanges 19, respectively. The flanges include flange plates (or blind plates) and flange sleeves. The upper ends of the primary mixing shaft and the secondary mixing shaft are respectively fixed on the flange plates, and the flange sleeves are respectively sleeved on the lower parts of the driving shaft and the driven shaft and fixed by bolts.

[0041] Preferably, it also includes a retaining cover 20, which is in the shape of an inverted bowl and is fixed to the lower end of the flange.

[0042] The working process of the utility model structure is as follows:

[0043] The main device is moved to the processing position by a traction machine, and the first-level mixing shaft is aligned with the working position. The mixing motor is started to drive the mixing shaft to rotate, and the hydraulic device is started to drive the gear transmission device to move downward.

[0044] For the soil layer to be treated, during the descent of the mixing shaft, the soil is successively subjected to the crushing and stirring action of the position tip 21, the scraper 22, the four-blade crushing knife 23, the single-blade crushing knife 24 and the primary mixing spiral 25, so that the soil layer is subjected to multiple rounds of stirring and mixing with the agent. After descending to the position, the gear transmission device is raised to reset, and the secondary mixing shaft is aligned with the position through the traction machine, and the descent process is repeated to achieve the effect of stirring again. At the same time, the primary mixing shaft reaches the next position for synchronous processing.

[0045] The utility model structure is particularly suitable for treating shallow soil in a large area. For the soil at the edge of the area and at a deeper position, the stirring times are less and the effect is slightly worse during the treatment, but it can also meet the relevant treatment requirements, and the treatment effect of shallow soil in the treatment area is greatly improved.

[0046] The medicine used in the utility model structure can be granular or liquid. For granular medicine, under the action of gravity, centrifugal force and vibration, it can smoothly pass through the pipeline to reach the discharge port and be discharged. For liquid medicine, the medicine flow rate can be controlled by the valve at the outlet of the medicine box, and the medicine flows out directly along the pipeline, or a discharge pump is set on the medicine box, and the discharge pump is connected to the discharge port through the outlet of the discharge pipe.

[0047] The utility model has a simple structure, is easy to operate and convenient to control. People only need to have a simple understanding of it to complete the soil remediation process, thereby minimizing the impact of personnel changes on the function of the device and improving the soil remediation efficiency. The mixing spiral device of the utility model can effectively scan and crush soil particles layer by layer, and fully mix the medicinal soil particles.

Claims

1. A novel in-situ two-stage combined soil remediation device, characterized in that: It includes a repair device body, which is connected to a traction machine through an integral support frame, and an integral moving wheel is arranged below the integral support frame; The repair device body comprises a main body frame, a gear transmission device is slidably arranged in the main body frame, and a primary mixing shaft and a secondary mixing shaft are respectively arranged on two output shafts of the gear transmission device; A first-stage crushing and mixing component is arranged on the first-stage mixing shaft; A secondary crushing and mixing component is arranged on the secondary mixing shaft; A mixing motor and a medicine box are arranged above the gear transmission device.

2. A novel in-situ two-stage combined soil remediation device according to claim 1, characterized in that: A connecting ear plate I is respectively arranged on the front and rear sides of the gear transmission device, and the connecting ear plate I is fixedly connected to the piston rod of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is fixed on the main frame; a connecting ear plate II is respectively arranged on the left and right sides of the gear transmission device, and the connecting ear plate II is sleeved on the outer side of the guide rod and slidably matched with the guide rod, and the two ends of the guide rod are respectively fixed to the main frame through horizontal support seats.

3. The novel in-situ two-stage combined soil remediation device according to claim 1 is characterized in that: The discharge port of the medicine box is connected with the medicine discharge port through the material feeding hole; the material feeding hole runs through the first-level mixing shaft, and the medicine discharge port is located at the lower end of the first-level mixing shaft.

4. The novel in-situ two-stage combined soil remediation device according to claim 1 is characterized by: The homogenous mixing motor is connected to the gear transmission device through the homogenous mixing motor support plate.

5. The novel in-situ two-stage combined soil remediation device according to claim 1 is characterized in that: The first-stage crushing and homogenizing component comprises a positioning tip, a scraper, a four-leaf crushing knife, a single-leaf crushing knife and a first-stage homogenizing spiral arranged from bottom to top.

6. The novel in-situ two-stage combined soil remediation device according to claim 1 is characterized by: The secondary crushing and homogenizing component comprises a positioning tip at a lower portion, a secondary homogenizing spiral and a secondary homogenizing and crushing-mixing roller at an upper portion.

7. The novel in-situ two-stage combined soil remediation device according to claim 1 is characterized by: The traction machine is a tractor.

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