Soil remediation pretreatment device

Abstract

The utility model discloses a soil remediation pretreatment device, which is used for solving the problem of poor treatment effect caused by blocky polluted soil. The raking assemblies comprise S-shaped elastic bodies, clamping grooves formed in the upper ends and the lower ends of the elastic bodies, raking teeth shaped like the Chinese character'shan ', three sets of transversely and horizontally arranged water spraying pipelines, eccentric vibrators arranged on the rack and crushing roller assemblies, and the crushing roller assemblies comprise crushing rollers, V-shaped rods and supporting rods; the two ends of the two crushing rollers are installed on an inverted V-shaped rod through rotating pieces correspondingly, the top of the inverted V-shaped rod is connected with the rear end of a supporting rod through an adapting piece, the front end of the supporting rod is hinged to the rack, and the middle of the supporting rod is elastically connected with the rack. According to the device, the front, middle and rear acid-base agent spraying devices are arranged and are matched with crushing of soil blocks, so that the agent can be fully applied to the soil, the agent is sprayed more uniformly and effectively, and the treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of contaminated soil remediation mechanical equipment, and is a special equipment, specifically a soil remediation pretreatment device. Background Technique

[0002] Soil remediation refers to the process of using physical, chemical, and biological methods to transfer, absorb, degrade, and transform pollutants in the soil, reducing their concentration to an acceptable level, or converting toxic and harmful pollutants into harmless substances. In this process, it is necessary to spray chemical remediation agents and biological strains into the contaminated soil through special equipment, and ensure that the spraying is as uniform and effective as possible, and maintain high efficiency as much as possible.

[0003] Traditional soil remediation methods use off-site soil replacement, that is, concentrating toxic soil together for remediation, which is suitable for severely contaminated soil. For the remediation of some slightly contaminated soil, this off-site treatment and replacement method has high costs and great difficulties.

[0004] For the remediation of slightly contaminated soil, in-situ treatment can be used, that is, by reducing the pollution level in-situ to achieve the goal of restoring the soil function.

[0005] CN118595140A discloses a multi-source composite contaminated soil remediation pretreatment system and method, belonging to the technical field of contaminated soil treatment. Among them, the upper end of the support frame is fixedly connected to the mixing bin seat, the lower end of the mixing bin seat is fixedly connected to the discharge bin seat, several mixing and stirring teeth are arranged on the first rotating shaft, the output end of the first motor is connected to one end of the first rotating shaft, the output end of the second motor is connected to one end of the conveying worm, the first rotating shaft and the mixing bin seat, and the conveying worm and the support and the discharge bin seat are respectively rotatably connected to each other through slewing bearings, and an isolation unit is arranged in the blanking chute. When the soil material falls into the mixing bin seat in the multi-source composite contaminated soil remediation pretreatment device, part of the soil material will fall into the discharge bin seat, resulting in part of the soil being unable to be treated, greatly reducing the treatment effect of the device on the contaminated soil.

[0006] During the in-situ treatment process, if sufficient treatment effect is to be achieved, it is necessary to fully refine the soil texture, preferably to form pulverization. Content of the Utility Model

[0007] In view of the problem of large particle size of soil blocks in the current soil remediation process, it is difficult to carry out targeted removal of pollution sources inside the soil blocks. The utility model provides a soil remediation pretreatment device to solve the problem of poor treatment effect caused by the block shape of contaminated soil. By crushing the contaminated soil blocks and spraying acid and alkali reagents, the soil to be treated can be completely dissected to an appropriate degree, meeting the requirement for homogenizing the contaminated soil.

[0008] The utility model solves the technical problem by adopting the following technical solution: a soil remediation pretreatment device, comprising a frame and a ground wheel, wherein the front end of the frame is fixed to the suspension device of a power vehicle through a hydraulic adjustment rod, and height-adjustable ground wheels are arranged around the frame, and the device is characterized in that it also includes:

[0009] At least one row of several rake assemblies are installed side by side and transversely in the horizontal cross bar of the frame, the rake assembly includes an S-shaped elastic body and a slot and a mountain-shaped rake tooth respectively arranged at the upper and lower ends of the elastic body, the slot is fixed to the horizontal cross bar of the frame by a fastener, and the rake tooth extends obliquely forward and downward;

[0010] A water spray pipe I is arranged on the front frame and the rear frame of the harrowing assembly and is arranged horizontally, and a row of downward spray nozzles I is installed on the water spray pipe I;

[0011] An eccentric vibrator is arranged on the frame, and the eccentric vibrator is connected to a power device of a power vehicle through a universal joint;

[0012] And a crushing roller assembly, the crushing roller assembly comprises a crushing roller, a V-shaped rod and a support rod, the two ends of the two crushing rollers are respectively installed on the inverted V-shaped rod through a rotating member, and the top of the inverted V-shaped rod is fixed on the adapter through a square hole, and the other end of the adapter is hingedly connected to the rear end of the support rod, the front end of the support rod is hinged on the frame, and the middle part of the support rod is elastically connected to the frame through a spring and a positioning pin;

[0013] A water spray pipe II is arranged horizontally on the support rod, and a row of downward spraying nozzles II are installed on the water spray pipe II. The nozzles II are mainly used for spraying medicine on the powder formed by the broken soil blocks.

[0014] Furthermore, the crushing roller is composed of a plurality of disc parts arranged in parallel and steel plates spirally welded on the circumference of the disc parts, and pointed protrusions or concave notches are provided on the edges of the steel plates.

[0015] Furthermore, the raking components are arranged in two rows in parallel front and back.

[0016] Furthermore, the elastomer is a hardened spring steel element.

[0017] Further, the eccentric vibrator includes an eccentric wheel, a reduction gear set, and a housing.

[0018] Further, the gap between the harrow teeth in the harrowing assembly is between 2 and 10 cm.

[0019] Further, a chemical agent tank is fixed on the frame, and the chemical agent tank is connected to the water spraying pipe Ⅰ or / and the water spraying pipe Ⅱ through a water pump.

[0020] The beneficial effects of the present utility model are as follows: First, through the combined action of the eccentric vibrator and the harrowing assembly, the soil blocks of the contaminated soil can be hooked out to the soil surface, and finally the crushing roller is used to crush the soil blocks on the surface layer. After the combined action, the diameter of the largest soil block in the crushed soil has been reduced to less than 1 cm, which is convenient for the attachment of the chemical agent.

[0021] By setting three sets of acid-base chemical agent spraying devices at the front, middle and rear, the present device can fully apply the chemical agent to the soil, making the spraying of the chemical agent more uniform and effective, and improving the treatment effect. Description of the Drawings

[0022] Figure 1 is a perspective view of the present utility model.

[0023] Figure 2 is a schematic side view.

[0024] Figure 3 is a schematic diagram of the eccentric vibrator.

[0025] Figure 4 is a perspective view of the frame.

[0026] Figure 5 is a perspective view of the harrowing assembly.

[0027] Figure 6 is a perspective view of the crushing roller assembly.

[0028] Figure 7 is a perspective view of the crushing roller.

[0029] Figure 8 is Figure 7 a partial enlarged view of part A in

[0030] In the figure: 1 frame, 11 cross bar, 12 ground wheel, 2 harrowing assembly, 21 S-shaped elastic body, 22 card slot, 23 harrow tooth, 3 eccentric vibrator, 31 transmission shaft, 4 chemical agent tank, 41 water spraying pipe Ⅰ, 42 water spraying pipe Ⅱ, 5 crushing roller assembly, 51 crushing roller, 52 V-shaped rod, 53 support rod, 54 square steel pipe, 55 spring and positioning pin, 511 disc part, 512 steel plate, 513 concave notch. Detailed Embodiments

[0031] As shown Figures 1 to 8 in the figure, the soil remediation pretreatment device includes a frame, ground wheels, harrowing components, a water spraying system, and a crushing roller component.

[0032] The frame 1 is integrally formed by welding square steel pipes, and is rectangular as a whole, and several horizontal crossbars 11 are welded therein. The front end is fixed to the suspension device of the power vehicle through a hydraulic adjusting rod, and the lifting and lowering of the frame are realized through the vehicle's suspension device. Then, height-adjustable ground wheels 12 are provided around the frame 1, which will not be elaborated here. That is to say, the application of this device is based on a tractor, and the tractor provides the forward power.

[0033] A number of harrowing components 2 are fixedly installed in the horizontal crossbars 11 of the frame 1, arranged in rows along the horizontal crossbars. To increase the harrowing effect, the harrowing components are arranged in two rows side by side front and back.

[0034] Specifically, the harrowing component 2 includes an S-shaped elastic body 21, and a clamping groove 22 and a mountain-shaped harrow tooth 23 respectively arranged at the upper and lower ends of the elastic body. The three are integrally formed by welding. The S elastic body is made of quenched spring steel and has high elasticity. The clamping groove 22 is fixed to the horizontal crossbar 11 of the frame through fasteners, as Figure 5 shown in the figure. The gap between the harrow teeth 23 in the above-mentioned harrowing component is about 3 cm, and it is inclined forward and downward, inserted into the soil, and the large soil blocks in the soil are removed to the surface of the ground, so as to facilitate the subsequent process of crushing.

[0035] An eccentric vibrator 3 is arranged on the frame 1. The eccentric vibrator includes an eccentric wheel, a reduction gear set, and a housing, which is a common structure. The above-mentioned eccentric vibrator 3 is connected to the power device of the power vehicle through a transmission shaft 31, and is driven by the vehicle's power system. Of course, the above-mentioned eccentric vibrator can also be replaced by an eccentric motor. The eccentric vibrator has the following functions. One is to cooperate with the above-mentioned harrowing component to work, remove the soil blocks by vibrating and screening, and make the soil blocks rise to the surface of the ground, and at the same time prevent the harrow teeth from entering the soil too deep. The other is to cooperate with the subsequent crushing roller component to crush the soil blocks to form a good crushing effect.

[0036] A chemical agent tank 4 is fixed on the frame 1, and a water spraying pipe Ⅰ 41 is transversely arranged on the front and rear frames 1 in front of the harrowing component, and a nozzle Ⅰ is provided thereon. Then, the chemical agent tank 4 is connected to the water spraying pipe through a water pump, and after being powered on, it can perform the spraying operation of the acid-base chemical agent.

[0037] The crushing roller assembly 5 includes a crushing roller 51, a V-shaped rod 52, and a support rod 53. First, the tops of two inverted V-shaped rods 52 are connected by a square steel pipe 54 to form a large V-shaped body. At the same time, the middle part of the square steel pipe 54 is hinged to the support rod through a rod member. The front end of the support rod 53 is hinged to the frame, and the middle part of the support rod 53 is elastically connected to the frame through a spring and a positioning pin 55. The spring presses the support rod, so that the crushing roller 51 on the V-shaped rod presses tightly against the ground.

[0038] Both ends of the two crushing rollers 51 are respectively installed on the inverted V-shaped rods through bearings and are arranged side by side front and back. The crushing roller is composed of a plurality of disk parts 511 arranged side by side and steel plates 512 spirally welded to the circumferences of the disk parts. And pointed protrusions or recessed notches 513 are provided at the edges of the steel plates. The crushing roller can effectively crush soil clods and form effective crushing of the soil clods.

[0039] The water spraying pipe II 42 arranged horizontally and transversely on the support rod, and a row of downward spraying nozzles II are installed on the water spraying pipe II. This water spraying pipe II can share a set of chemical agent tanks and pumps with the water spraying pipe II 42, or can be provided with chemical agent tanks and pumps separately.

[0040] The working process is as follows. First, the tractor starts. During the driving process, the eccentric vibrator vibrates. Cooperating with the harrowing component, large soil clods in the shallow layer of the soil can be removed to the ground surface. Then, the chemical agent spraying system immediately carries out the operation of the acid-base reagent solution. Synchronously, the crushing roller component carries out the crushing operation to form effective crushing and complete the operation. The fineness of the shallow layer of soil after crushing is significantly improved, which has a positive significance for improving the treatment effect of the chemical agent.

[0041] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those skilled in the relevant art to the present invention should all be included in the protection scope determined by the claims of the present invention.

Claims

1. Soil remediation pretreatment device, comprising a frame and ground wheels, the front end of the frame is fixed on the suspension device of a power vehicle through a hydraulic adjusting rod, and ground wheels with adjustable height are arranged around the frame, characterized in that, It further includes at least one row of harrowing components horizontally installed side by side in the horizontal crossbars of the frame. The harrowing components include an S-shaped elastic body, and a card slot and harrow teeth respectively arranged at the upper and lower ends of the elastic body. The card slot is fixed on the horizontal crossbar of the frame, and the harrow teeth extend obliquely forward and downward; a water spraying pipe Ⅰ horizontally arranged on the front side frame and the rear side frame of the harrowing components, and a row of nozzles Ⅰ spraying downward are installed on the water spraying pipe Ⅰ; an eccentric vibrator arranged on the frame, and the eccentric vibrator is connected to the power device of the power vehicle through a universal joint; and a crushing roller assembly. The crushing roller assembly includes a crushing roller, a V-shaped rod and a support rod. The two ends of the crushing roller are respectively installed on the inverted V-shaped rod through rotating parts, and the top of the inverted V-shaped rod is fixed on the adapter through a square hole. The other end of the adapter is hinged to the rear end of the support rod. The front end of the support rod is hinged on the frame, and the middle part of the support rod is elastically connected to the frame through a spring and a positioning pin; a water spraying pipe Ⅱ horizontally arranged on the support rod, and a row of nozzles Ⅱ spraying downward are installed on the water spraying pipe Ⅱ.

2. The soil remediation pretreatment device according to claim 1, wherein The crushing roller is composed of a plurality of disk parts arranged in parallel and steel plates spirally welded on the circumferences of the disk parts, and pointed protrusions or recessed notches are arranged on the edges of the steel plates.

3. The soil remediation pretreatment device according to claim 1, wherein The harrowing components are arranged in two rows side by side front and back.

4. The soil remediation pretreatment device according to claim 1, wherein The elastic body is a quenched spring steel element.

5. The soil remediation pretreatment device according to claim 1, characterized in that, The eccentric vibrator includes an eccentric wheel, a reduction gear set and a housing.

6. The soil remediation pretreatment device according to claim 1, wherein, The gap between the harrow teeth in the harrowing components is 2 to 10 centimeters.

7. The soil remediation pretreatment device according to claim 1 or 2, characterized in that, A medicine box is fixed on the frame, and the medicine box is connected to the water spraying pipe Ⅰ or / and the water spraying pipe Ⅱ through a water pump.

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