CN114669468A - Pollute soil preliminary treatment screening plant - Google Patents

Abstract

The invention provides a polluted soil pretreatment screening device, belongs to the technical field of soil detection equipment, and solves the technical problems that the existing soil scattering mode is single, the crushing effect is poor, a screening net is easy to block, and the like. This pollute soil preliminary treatment screening plant, including the screening case, the upper end of screening case is fixed with first motor, the output shaft end of first motor is fixed with the drive shaft, the lower extreme of drive shaft stretches into the screening incasement, the lower extreme of drive shaft is provided with the stirring subassembly, be provided with the heating member on the stirring subassembly, the inside sliding connection of screening case has the mount pad, the interior internal week of mount pad is fixed with the screening net, the screening net is located the below of (mixing) shaft, be provided with elastic component between the lower extreme of mount pad and the inside lower extreme of screening case, be provided with the lift subassembly between the upside of mount pad and the drive shaft. The invention has the advantages of removing water in soil, changing the scattering mode of blocky soil, improving the crushing effect and preventing the blockage of the screening net.

Description

Pollute soil preliminary treatment screening plant

Technical Field

The invention belongs to the technical field of soil detection equipment, relates to a screening device, and particularly relates to a screening device for pretreatment of polluted soil.

Background

For soil condition in the detection specific area, need pollute soil and detect, and need pollute soil before the detection and carry out certain screening, can carry out subsequent detection after getting rid of impurity such as stone, weeds in the soil.

Through retrieval, for example, chinese patent document discloses a contaminated soil preliminary treatment screening plant [ application No.: 202021731024.1; publication No.: CN 213287174U). This kind of screening plant, realized carrying out the crushing with cubic soil through being provided with rubbing crusher and being convenient for sieve, when soil from the pan feeding mouth pour into the main part in, start second servo motor this moment and make it drive the master gear and rotate, the master gear drives the chain and rotates simultaneously, because the meshing of drive gear and chain, make the chain drive the grinder and rotate simultaneously, drop at the top of screening net when cubic soil, the grinder rotates and carries out the breakage with cubic soil, broken cubic soil is followed the screening net and is sieved and dropped in the agitator afterwards, thereby carry out the crushing screening with cubic soil and be convenient for sieve.

The screening device disclosed in this patent can realize the crushing to cubic soil, but, because its crushing mode to the grit is more single, the crushing effect is limited to because there is moisture in the soil, can influence the effect of crushing, and make the screening net jam easily, influence the normal clear of work.

Disclosure of Invention

The invention aims to provide a polluted soil pretreatment screening device aiming at the problems in the prior art, and the invention aims to solve the technical problems that: how to realize the moisture in the soil and change the scattering mode to cubic soil to improve the effect of crushing, and prevent that the screening net from blockking up.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a pollute soil preliminary treatment screening plant, includes the screening case, the lower extreme of screening case is fixed with the landing leg, and the upper end intercommunication of screening case has the feeder hopper, and the lower extreme of screening case is provided with the bin outlet, the upper end of screening case is fixed with first motor, and the output shaft end of first motor is fixed with the drive shaft, and the lower extreme of drive shaft stretches into the screening incasement, and the lower extreme of drive shaft is provided with the stirring subassembly, is provided with on the stirring subassembly with heat-insulating material, and the inside sliding connection of screening case has the mount pad, and the interior week of mount pad is fixed with the screening net, and the screening net is located the below of (mixing) shaft, is provided with elastic component between the lower extreme of mount pad and the inside lower extreme of screening case, is provided with the lift subassembly between the upside of mount pad and the drive shaft.

The working principle of the invention is as follows: when the soil screening machine works, soil is added into a screening box through a feed hopper, a first motor and a heating element are started, the first motor drives a stirring assembly to rotate, soil is scattered, meanwhile, the heating element rotates along with the stirring assembly to uniformly heat the soil, so that the moisture in the soil is dried, the soil is easy to scatter, a lifting assembly is driven to move while the stirring assembly rotates, a screening net is driven to reciprocate up and down by the lifting assembly, not only can the soil be screened by vibration, but also the screening efficiency is improved, and when the screening net moves up and down, the soil also moves up and down, so that the scattering position of the stirring assembly is continuously changed, the scattering effect of the soil is improved, and the moisture in the soil is evaporated, the soil is not caked after being scattered, so that the screening net is not blocked, the normal operation of the work is ensured.

The elastic component comprises an annular supporting cylinder, the upper end of the annular supporting cylinder is fixedly connected with the mounting seat, an annular telescopic cavity with an open lower end is formed in the annular supporting cylinder, a first spring is fixed at the upper end of the annular telescopic cavity, an annular telescopic cylinder is fixed at the lower end of the first spring, and the lower end of the annular telescopic cylinder is connected with the lower end of the inside of the screening box.

Structure more than adopting, at the during operation, lifting unit can extrude the lift seat, drives the lift seat and moves down to compress first spring, when lifting unit goes up, under the effect of first spring, can be so that the mount pad drives the reciprocating elevating movement of screening net, so circulation realizes the reciprocating elevating movement of screening net.

The lifting assembly comprises a supporting rod and an annular lifting barrel, the annular lifting barrel is fixed on the upper side of the mounting seat, a lifting cavity is formed in the annular lifting barrel, a wave-shaped bulge is arranged at the bottom of the lifting cavity, the upper end of the annular lifting barrel is connected with a sealing seat in a sliding mode, a sliding hole is formed in the sealing seat, a driving rod is connected in the sliding hole in a sliding mode, the lower end of the driving rod is located in the lifting cavity, the upper end of the driving rod is fixedly connected with the supporting rod, and the other end of the supporting rod is fixedly connected with a driving shaft.

Structure more than adopting, when the drive shaft rotates, it is rotatory around the drive shaft to drive the actuating lever through the bracing piece, the lower extreme and the protruding conflict of wave of actuating lever, when the lower extreme of actuating lever moves from the bellied lower extreme of wave toward the bellied top of wave, can drive the decline of annular lift section of thick bamboo, thereby make the mount pad drive screening net descend, when the actuating lever moves again behind the bellied top of wave, an annular lift section of thick bamboo will be under the elasticity of first spring, rise, thereby realize the reciprocal lift of screening net, the setting of seal receptacle, can seal the upper end in lift chamber, and can not influence the normal work of actuating lever, prevent that soil from entering into the normal clear that goes on of lift intracavity influence device.

The stirring assembly comprises a stirring shaft, the upper end of the stirring shaft is fixedly connected with a driving shaft, a plurality of stirring blades are arranged on the outer side of the stirring shaft, a driving cavity with an opening at the lower end is formed in the stirring shaft, the lower end of the driving cavity is rotatably connected with a rotating seat, a guide post is fixed on the outer periphery of the rotating seat, a lifting slide rail is fixed on the inner periphery of an annular lifting cylinder, the other end of the guide post is slidably connected with the lifting slide rail, an installation block is fixed on the upper side of the rotating seat, an installation shaft is fixed on the upper side of the installation block, a plurality of cams are fixed on the outer side of the installation shaft, a return seat is fixed on the outer periphery of the stirring shaft, a return cavity communicated with the driving cavity is formed in the return seat, the stirring blades are slidably connected with the return seat, a guide plate is fixed at one end of the stirring blades in the return cavity, a second spring is fixed on one side of the guide plate far away from the cams, and the other end of the second spring is fixedly connected with the return seat, a plurality of turbulence blades are fixed on the stirring blade, and the length direction of the turbulence blades is vertical to that of the stirring blade.

Structure more than adopting, at the device during operation, it is rotatory that first motor drives the drive shaft, the drive shaft drives the (mixing) shaft rotation, the (mixing) shaft drives the stirring leaf and stirs soil, and simultaneously, under the effect of lift slide rail and guide post, make the roating seat can reciprocate, but can not rotate along with the (mixing) shaft, thereby make the cam can not rotate, when the stirring leaf is rotatory, under cam and second spring complex effect, the cam can be spaced extrudees the deflector, make deflector reciprocating motion, thereby drive the stirring leaf and drive the reciprocating motion of vortex blade narrow range, not only can make the scope of stirring change, can also utilize the vortex blade to disturb soil, thereby break the motion inertia of soil, very big improvement is to the effect of breaing up and the efficiency of breaing up of soil.

The screening net has seted up a plurality of screening holes on the net, and the inside of screening case is fixed with the arc stock guide, and the arc stock guide is located the below of screening net, and the upside of arc stock guide is fixed with a plurality of dredging rods, and dredging rod and screening hole one-to-one, dredging rod's external diameter is less than the internal diameter in screening hole, is formed with the blanking clearance between both ends and the elastic component about the arc stock guide.

Structure more than adopting, when screening net up-and-down motion, can be so that the discontinuous entering into of mediation pole sieves downtheholely to utilize the mediation pole to dredge the screening hole, further assurance screening net can not block up, guarantees the normal clear of screening work, and the normal unloading of soil can be guaranteed in the setting of arc stock guide.

The upper end of the screening box is provided with a water tank, the water tank is connected with an air inlet pipe, the upper end of the air inlet pipe is fixed with a corrugated pipe, the other end of the corrugated pipe is fixed with a sealing cover, and the sealing cover is in sliding fit with the feed hopper.

Structure more than adopting, at the during operation, can install the sealed cowling in the upper end of feeder hopper, seal up the feeder hopper, thereby make the steam that the heating produced, through the sealed cowling, bellows and intake pipe enter into the water tank, utilize the water in the water tank to collect steam, the steam that not only can prevent to produce causes the pollution to the environment, and can accomplish the back at the screening, add the water in the water tank and detect in the soil that the screening is good, prevent that steam from taking away partial pollution sources, guarantee the accuracy that detects.

The downside middle part of water tank is provided with the heat conduction cover, and first motor is located the inside of heat conduction cover.

Structure more than adopting, in the device during operation, can utilize heat conduction cover to cool down first motor in with the heat transfer of first motor work production to the water tank, utilize the water in the water tank to first motor, when protecting first motor, improved the utilization ratio of resource.

The lower extreme of landing leg is provided with the base, the equipment chamber has been seted up to the inside of base, the inside in equipment chamber is fixed with the second motor, and the output shaft end of second motor is fixed with the back shaft, is provided with two screw thread sections on the back shaft, and the screw thread opposite direction of two screw thread sections, equal threaded connection has the removal seat in two screw thread sections, and the downside of removing the seat is connected with first drive post through the connecting seat, and the lower extreme of first drive post is connected with the seat that goes up and down through the connecting seat, and the downside of seat that goes up and down is provided with removes the wheel.

Structure more than adopting, the removal of the device of being convenient for, when the device is unmovable, can utilize the second motor to drive the back shaft rotation, make two remove a reverse motion, under the effect of first drive post, drive the seat that goes up and down and shift up, thereby make to remove the wheel and enter into the equipment intracavity, make base and ground contact, thereby utilize the base to support equipment, not only improved the stability of device, can prevent moreover to remove the wheel and receive the extrusion for a long time, realize the protection to removing the wheel.

The left and right sides of the equipment cavity are provided with limiting sliding grooves, and the left and right ends of the lifting seat are in sliding connection with the limiting sliding grooves.

By adopting the structure, the stability of the lifting seat during up-and-down movement can be improved under the action of the limiting sliding groove.

Both ends are fixed with the fixed plate about the periphery of back shaft, and one side that the fixed plate is close to the screw thread section is fixed with the third spring, and the other end of third spring is fixed with the sliding seat, sliding seat and back shaft sliding connection, still are fixed with spacing arch on the back shaft, and the sliding seat is located between fixed plate and the spacing arch, and one side that the removal seat is close to the sliding seat is fixed with the stripper bar, and the upside of sliding seat has second drive post through connecting seat swivelling joint, and the other end of second drive post is connected with the shock attenuation board, the upside of shock attenuation board is fixed with the telescopic link, and the upper end of telescopic link is fixed with the supporting seat, is fixed with the fourth spring between supporting seat and the shock attenuation board, the lower extreme of landing leg and the upside fixed connection of supporting seat.

By adopting the structure, when the device moves, the movable wheel extends out of the base, a certain distance is reserved between the lower side of the supporting seat and the base, so that when the device moves, the third spring can be utilized to absorb shock of the device, when the device works, the second motor can be utilized to drive the supporting shaft to rotate, so that the two movable seats move reversely, the lifting seat is driven to move upwards under the action of the first driving column, so that the movable wheel enters the equipment cavity, at the moment, the extrusion rod is not in contact with the sliding seat, so that the third spring is still in a state of extending out of the base, thereby realizing the shock absorption of the device work, when the device does not move or does not work, the second motor can be driven to continue rotating, so that the movable seat drives the extrusion rod to continue to move towards the sliding seat, so that the extrusion rod extrudes the sliding seat, so that the two sliding seats move reversely, thereby under the action of the second driving column, the damping plate is driven to descend, the second spring is retracted into the equipment cavity, the supporting seat is supported at the upper end of the base, the supporting seat is utilized to support the device, the second spring is not stressed, the second spring is protected, when the damping plate needs to be used, reverse operation can be achieved, different use states can be switched according to different scenes due to the arrangement of the structure, and therefore when the moving and damping functions can be achieved, the moving mechanism and the damping mechanism are protected to the greatest extent.

Compared with the prior art, this pollute soil preliminary treatment screening plant has following advantage:

1. when the soil screening machine works, soil is added into a screening box through a feed hopper, a first motor and a heating element are started, the first motor drives a stirring component to rotate, soil is scattered, meanwhile, the heating element rotates along with the stirring component to uniformly heat the soil, so that the moisture in the soil is dried, the soil is easy to scatter, the lifting component is driven to move while the stirring component rotates, the lifting component is utilized to drive a screening net to reciprocate up and down, not only can the soil be screened by vibration, but also the screening efficiency is improved, and the soil can also move up and down when the screening net moves up and down, so that the scattering position of the stirring component is continuously changed, the scattering effect of the soil is improved, and the moisture in the soil is evaporated, the soil cannot agglomerate after being scattered, so that the screening net cannot be blocked, the normal operation of work is ensured.

2. The setting of dredging rod when screening net up-and-down motion, can be so that the intermittent entering of dredging rod sieves downtheholely to utilize dredging rod to dredge the screening hole, further assurance screening net can not block up, guarantees the normal clear of screening work, and the normal unloading of soil can be guaranteed in the setting of arc stock guide.

3. The structure setting of water tank and sealed cowling, can install the sealed cowling in the upper end of feeder hopper, seal up the feeder hopper, thereby make the steam that the heating produced, through the sealed cowling, bellows and intake pipe enter into the water tank in, utilize the water in the water tank to collect steam, not only can prevent that the steam that produces from leading to the fact the pollution to the environment, and can accomplish the back at the screening, add the water in the water tank and detect in the soil that the screening is good, prevent that steam from taking away partial pollution sources, guarantee the accuracy that detects.

4. The structure setting of cam drives the reciprocating motion that the stirring leaf drove the vortex blade small range, not only can make the scope of stirring change, can also utilize the vortex blade to disturb soil to break the motion inertia of soil, very big improvement break up the effect and break up efficiency to soil.

5. The structure setting of base can switch different user state according to the difference of scene to when can realizing removing and shock-absorbing function, furthest protects moving mechanism and damper.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

Fig. 2 is a schematic view of the installation structure of the cam in the present invention.

Fig. 3 is a perspective view illustrating an installation structure of a cam according to the present invention.

Fig. 4 is a schematic perspective view of the stirring assembly of the present invention.

Fig. 5 is a schematic structural view of the annular lifting cylinder and the sealing seat in the invention.

Fig. 6 is a schematic view of the internal structure of the annular lifting base of the present invention.

Fig. 7 is a partially enlarged view of a point a in fig. 1.

Fig. 8 is a partially enlarged view at B in fig. 1.

Fig. 9 is a schematic view of the internal structure of the base in the present invention.

In the figure, 1, a screening box; 2. a support leg; 3. a feed hopper; 4. a first motor; 5. a drive shaft; 6. a stirring assembly; 7. a support bar; 8. a drive rod; 9. a lifting assembly; 10. a mounting seat; 11. screening the net; 12. an annular support cylinder; 13. an annular expansion cavity; 14. a first spring; 15. an annular telescopic cylinder; 16. an arc-shaped material guide plate; 17. dredging the rod; 18. a discharge outlet; 19. a water tank; 20. an air inlet pipe; 21. a bellows; 22. a sealing cover; 23. a heat conducting cover; 24. a stirring shaft; 25. a drive chamber; 26. a rotating base; 27. mounting blocks; 28. installing a shaft; 29. a cam; 30. a return seat; 31. stirring blades; 32. a guide plate; 33. a second spring; 34. a spoiler blade; 35. an annular lifting cylinder; 36. a sealing seat; 37. a slide hole; 38. a lifting cavity; 39. a wave-shaped bulge; 41. lifting the slide rail; 42. a guide post; 43. screening holes; 44. a base; 45. a damper plate; 46. a telescopic rod; 47. a fourth spring; 48. a supporting seat; 49. a lifting seat; 50. a moving wheel; 51. a limiting chute; 52. a second motor; 53. a support shaft; 54. a threaded segment; 55. a movable seat; 56. a first drive column; 57. a fixing plate; 58. a third spring; 59. a sliding seat; 60. a second drive column; 61. the rod is squeezed.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-9, the polluted soil pretreatment screening device comprises a screening box 1, wherein supporting legs 2 are fixed at the lower end of the screening box 1, a feed hopper 3 is communicated with the upper end of the screening box 1, a discharge outlet 18 is formed in the lower end of the screening box 1, a first motor 4 is fixed at the upper end of the screening box 1, a driving shaft 5 is fixed at the output shaft end of the first motor 4, the lower end of the driving shaft 5 extends into the screening box 1, a stirring component 6 is arranged at the lower end of the driving shaft 5, a heating component is arranged on the stirring component 6, a mounting seat 10 is connected inside the screening box 1 in a sliding mode, a screening net 11 is fixed on the inner periphery of the mounting seat 10, the screening net 11 is located below a stirring shaft 24, an elastic component is arranged between the lower end of the mounting seat 10 and the inner lower end of the screening box 1, and a lifting component 9 is arranged between the upper side of the mounting seat 10 and the driving shaft 5.

When the soil screening machine works, soil is added into a screening box 1 through a feed hopper 3, a first motor 4 and a heating element are started, the first motor 4 drives a stirring component 6 to rotate, soil is scattered, meanwhile, the heating element rotates along with the stirring component 6 to uniformly heat the soil, so that moisture in the soil is dried, the soil is easy to scatter, a lifting component 9 is driven to move while the stirring component 6 rotates, a screening net 11 is driven to reciprocate by the lifting component 9 to move up and down, vibration screening on the soil can be realized, screening efficiency is improved, the soil can also move up and down when the screening net 11 moves up and down, so that the scattering position of the stirring component 6 is continuously changed, the scattering effect of the soil is improved, and the soil cannot agglomerate after being scattered due to evaporation of the moisture in the soil, so that the screening net 11 cannot be blocked, the normal operation of work is ensured.

Elastic component includes that an annular supports a section of thick bamboo 12, and the upper end and the mount pad 10 fixed connection of an annular support section of thick bamboo 12, the flexible chamber 13 of lower extreme open-ended annular is seted up to the inside of an annular support section of thick bamboo 12, and the upper end in the flexible chamber 13 of annular is fixed with first spring 14, and the lower extreme of first spring 14 is fixed with an annular flexible section of thick bamboo 15, and the lower extreme of an annular flexible section of thick bamboo 15 is connected with the inside lower extreme of screening case 1.

Structure more than adopting, at the during operation, lifting unit 9 can extrude lift seat 49, drives lift seat 49 and moves down to compress first spring 14, when lifting unit 9 rose, under first spring 14's effect, can make mount pad 10 drive screening net 11 return, so circulation realizes screening net 11's reciprocating motion.

Lifting unit 9 includes bracing piece 7 and annular lift section of thick bamboo 35, the upside at mount pad 10 is fixed to annular lift section of thick bamboo 35, lift chamber 38 has been seted up to the inside of annular lift section of thick bamboo 35, the bottom in lift chamber 38 is provided with wave arch 39, the upper end sliding connection of annular lift section of thick bamboo 35 has seal receptacle 36, sliding hole 37 has been seted up on the seal receptacle 36, sliding connection has actuating lever 8 in the sliding hole 37, the lower extreme of actuating lever 8 is located lift chamber 38, the upper end and the bracing piece 7 fixed connection of actuating lever 8, the other end and the drive shaft 5 fixed connection of bracing piece 7.

Structure more than adopting, when drive shaft 5 rotates, it is rotatory around drive shaft 5 to drive actuating lever 8 through bracing piece 7, the lower extreme and the protruding 39 conflict of wave of actuating lever 8, when the lower extreme of actuating lever 8 moves from the lower extreme of the protruding 39 of wave toward the top of the protruding 39 of wave, can drive annular lifting cylinder 35 and descend, thereby make mount pad 10 drive screening net 11 descend, when actuating lever 8 moves again after removing the top of the protruding 39 of wave, annular lifting cylinder 35 will rise under the elasticity of first spring 14, thereby realize the reciprocal lift of screening net 11, the setting of seal receptacle 36, can seal up the upper end of lift chamber 38, and can not influence the normal work of actuating lever 8, prevent that soil from entering into the interior normal clear that influences the device of lift chamber 38.

The stirring assembly 6 comprises a stirring shaft 24, the upper end of the stirring shaft 24 is fixedly connected with a driving shaft 5, the outer side of the stirring shaft 24 is provided with a plurality of stirring blades 31, the inner part of the stirring shaft 24 is provided with a driving cavity 25 with an opening at the lower end, the lower end of the driving cavity 25 is rotatably connected with a rotating base 26, the outer periphery of the rotating base 26 is fixed with a guide column 42, the inner periphery of an annular lifting cylinder 35 is fixed with a lifting slide rail 41, the other end of the guide column 42 is slidably connected with the lifting slide rail 41, the upper side of the rotating base 26 is fixed with a mounting block 27, the upper side of the mounting block 27 is fixed with a mounting shaft 28, the outer side of the mounting shaft 28 is fixed with a plurality of cams 29, the outer periphery of the stirring shaft 24 is fixed with a return seat 30, the inner part of the return seat 30 is provided with a return cavity communicated with the driving cavity 25, the stirring blades 31 are slidably connected with the return seat 30, one end of the stirring blades 31 in the return cavity is fixed with a guide plate 32, one side of the guide plate 32 far away from the cams 29 is fixed with a second spring 33, the other end of the second spring 33 is fixedly connected with the return seat 30, a plurality of turbulence blades 34 are fixed on the stirring blade 31, and the length direction of the turbulence blades 34 is perpendicular to the length direction of the stirring blade 31.

By adopting the structure, when the device works, the first motor 4 drives the driving shaft 5 to rotate, the driving shaft 5 drives the stirring shaft 24 to rotate, the stirring shaft 24 drives the stirring blade 31 to stir the soil, and simultaneously, under the action of the lifting slide rail 41 and the guide post 42, the rotary base 26 can move up and down, but does not rotate with the stirring shaft 24 so that the cam 29 does not rotate, and when the stirring vanes 31 rotate, under the action of the cam 29 and the second spring 33, the cam 29 presses the guide plate 32 at intervals, so that the guide plate 32 reciprocates, thereby driving the stirring blades 31 to drive the turbulence blades 34 to reciprocate in a small range, not only changing the stirring range, but also disturbing the soil by using the turbulence blades 34, therefore, the movement inertia of the soil is broken, and the scattering effect and the scattering efficiency of the soil are greatly improved.

Screening net 11 is last to have seted up a plurality of screening holes 43, and the inside of screening case 1 is fixed with arc stock guide 16, and arc stock guide 16 is located screening net 11's below, and the upside of arc stock guide 16 is fixed with a plurality of dredging rods 17, and dredging rods 17 and screening holes 43 one-to-one, the external diameter of dredging rods 17 is less than the internal diameter of screening holes 43, is formed with the blanking clearance between arc stock guide 16's the both ends of controlling and the elastic component.

Structure more than adopting, when screening net 11 up-and-down motion, can be so that dredge 17 discontinuous enter into in the screening hole 43 to utilize dredging 17 to dredge screening hole 43, further assurance screening net 11 can not block up, guarantees the normal clear of screening work, and the setting of arc stock guide 16 can guarantee the normal unloading of soil.

The upper end of screening case 1 is provided with water tank 19, is connected with intake pipe 20 on the water tank 19, and the upper end of intake pipe 20 is fixed with bellows 21, and the other end of bellows 21 is fixed with sealed cowling 22, sealed cowling 22 and feeder hopper 3 sliding fit.

Structure more than adopting, at the during operation, can install the upper end at feeder hopper 3 with sealed cowling 22, seal feeder hopper 3, thereby make the steam that the heating produced, through sealed cowling 22, bellows 21 and intake pipe 20 enter into in the water tank 19, utilize the water in the water tank 19 to collect steam, not only can prevent that the steam that produces from causing the pollution to the environment, and can accomplish the back at the screening, add the water in the water tank 19 and detect in the soil that the screening is good, prevent that steam from taking away partial pollution sources, guarantee the accuracy that detects.

The middle of the lower side of the water tank 19 is provided with a heat conduction cover 23, and the first motor 4 is positioned inside the heat conduction cover 23.

With the adoption of the structure, when the device works, the heat generated by the work of the first motor 4 can be transferred into the water tank 19 by utilizing the heat conduction cover 23, the first motor 4 is cooled by utilizing the water in the water tank 19, and the utilization rate of resources is improved while the first motor 4 is protected.

The lower extreme of landing leg 2 is provided with base 44, the equipment chamber has been seted up to the inside of base 44, the inside in equipment chamber is fixed with second motor 52, the output shaft end of second motor 52 is fixed with back shaft 53, be provided with two screw thread sections 54 on the back shaft 53, the screw thread opposite direction of two screw thread sections 54, equal threaded connection has removal seat 55 on two screw thread sections 54, the downside that removes seat 55 is connected with first drive post 56 through the connecting seat, the lower extreme of first drive post 56 is connected with lift seat 49 through the connecting seat, lift seat 49's downside is provided with removes wheel 50.

Structure more than adopting, be convenient for the removal of device, when the device is unmovable, can utilize second motor 52 to drive back shaft 53 rotatory, make two remove seat 55 reverse motions, under the effect of first drive post 56, drive lift seat 49 and shift up, thereby make and remove wheel 50 and enter into the equipment intracavity, make base 44 and ground contact, thereby utilize base 44 to support equipment, not only the stability of device has been improved, and can prevent to remove wheel 50 and receive the extrusion for a long time, the realization is to removing the protection of wheel 50.

The left side and the right side of the equipment cavity are provided with limiting sliding grooves 51, and the left end and the right end of the lifting seat 49 are in sliding connection with the limiting sliding grooves 51.

With the above structure, the stability of the lifting seat 49 during up-and-down movement can be improved under the action of the limiting sliding groove 51.

Fixed plates 57 are fixed at the left end and the right end of the periphery of the supporting shaft 53, a third spring 58 is fixed on one side of the fixed plate 57 close to the threaded section 54, a sliding seat 59 is fixed at the other end of the third spring 58, the sliding seat 59 is in sliding connection with the supporting shaft 53, a limiting bulge is further fixed on the supporting shaft 53, the sliding seat 59 is located between the fixed plate 57 and the limiting bulge, an extrusion rod 61 is fixed on one side of the moving seat 55 close to the sliding seat 59, a second driving column 60 is connected to the upper side of the sliding seat 59 through a connecting seat in a rotating mode, the other end of the second driving column 60 is connected with the damping plate 45, an expansion link 46 is fixed on the upper side of the damping plate 45, a supporting seat 48 is fixed at the upper end of the expansion link 46, a fourth spring 47 is fixed between the supporting seat 48 and the damping plate 45, and the lower end of the supporting leg 2 is fixedly connected with the upper side of the supporting seat 48.

By adopting the structure, when the device moves, the moving wheel 50 extends out of the base 44, a certain distance is reserved between the lower side of the supporting seat 48 and the base 44, so that when the device moves, the third spring 58 can be used for damping the device, when the device works, the second motor 52 can be used for driving the supporting shaft 53 to rotate, so that the two moving seats 55 move reversely, the lifting seat 49 is driven to move upwards under the action of the first driving column 56, so that the moving wheel 50 enters the equipment cavity, at the moment, the extrusion rod 61 is not in contact with the sliding seat 59, so that the third spring 58 is still in a state of extending out of the base 44, so that the damping of the device works is realized, when the device does not move or work, the second motor 52 can be driven to continue to rotate, so that the moving seat 55 drives the extrusion rod 61 to continue to move towards the sliding seat 59, so that the extrusion rod 61 extrudes the sliding seat 59, make two sliding seat 59 reverse motion, thereby under the effect of second drive post 60, drive damper plate 45 and descend, make second spring 33 receive the equipment intracavity, make supporting seat 48 support the upper end at base 44, thereby utilize supporting seat 48 to support the device, make second spring 33 can not the atress, the realization is to second spring 33's protection, when needing to use, make reverse operation can, the setting of this structure, can be according to the difference of scene, switch different user state, thereby when can realizing removing and shock-absorbing function, furthest protects moving mechanism and damper.

The working principle of the invention is that when the machine works, soil is added into the screening box 1 through the feed hopper 3, the first motor 4 and the heating element are started, the first motor 4 drives the driving shaft 5 to rotate, the driving shaft 5 drives the stirring shaft 24 to rotate, the stirring shaft 24 drives the stirring blade 31 to stir the soil, meanwhile, under the action of the lifting slide rail 41 and the guide column 42, the rotating base 26 can move up and down and cannot rotate along with the stirring shaft 24, so that the cam 29 cannot rotate, when the stirring blade 31 rotates, under the action of the cooperation of the cam 29 and the second spring 33, the cam 29 can extrude the guide plate 32 at intervals, so that the guide plate 32 reciprocates, the stirring blade 31 is driven to drive the stirring blade 34 to reciprocate within a small range, the stirring range can be changed, and the soil can be disturbed by the stirring blade 34, thereby breaking the movement inertia of soil, simultaneously, the heating element rotates along with the stirring component 6 to uniformly heat the soil, thereby drying the moisture in the soil, and making the soil easy to break up, when the stirring component 6 rotates, the driving rod 8 is driven to rotate around the driving shaft 5 through the supporting rod 7, the lower end of the driving rod 8 is butted with the wave-shaped bulges 39, when the lower end of the driving rod 8 moves from the lowest end of the wave-shaped bulges 39 to the top end of the wave-shaped bulges 39, the annular lifting cylinder 35 can be driven to descend, thereby the mounting seat 10 drives the sieving net 11 to descend, when the driving rod 8 moves to the top end of the wave-shaped bulges 39 and then moves, the annular lifting cylinder 35 can ascend under the elasticity of the first spring 14, thereby realizing the reciprocating ascending and descending of the sieving net 11, not only can realize the vibration sieving of the soil, and improve the sieving efficiency, and when screening net 11 up-and-down motion, soil also can the up-and-down motion to make the continuous emergence of the position that stirring subassembly 6 was broken up change, thereby improve the effect of breaing up of soil, and because the moisture in the soil has been evaporated, make the soil can not agglomerate after breaking up, thereby can not cause the jam to screening net 11, guarantee the normal clear of work.

In conclusion, through the setting of stirring subassembly 6 and screening mechanism, realize getting rid of the moisture in the soil to change the mode of breaing up to cubic soil, thereby improve the effect of crushing, and prevent the function that screening net 11 blockked up.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (10)

1. A polluted soil pretreatment screening device comprises a screening box (1), wherein supporting legs (2) are fixed at the lower end of the screening box (1), a feed hopper (3) is communicated with the upper end of the screening box (1), a discharge hole (18) is formed in the lower end of the screening box (1), the polluted soil pretreatment screening device is characterized in that a first motor (4) is fixed at the upper end of the screening box (1), a driving shaft (5) is fixed at the output shaft end of the first motor (4), the lower end of the driving shaft (5) extends into the screening box (1), a stirring component (6) is arranged at the lower end of the driving shaft (5), a heating component is arranged on the stirring component (6), a mounting seat (10) is slidably connected inside the screening box (1), a screening net (11) is fixed on the inner periphery of the mounting seat (10), the screening net (11) is located below a stirring shaft (24), an elastic component is arranged between the lower end of the mounting seat (10) and the inner lower end of the screening box (1), a lifting component (9) is arranged between the upper side of the mounting seat (10) and the driving shaft (5).

2. A polluted soil pretreatment screening device as claimed in claim 1, wherein the elastic assembly comprises an annular supporting cylinder (12), the upper end of the annular supporting cylinder (12) is fixedly connected with the mounting seat (10), an annular telescopic cavity (13) with an open lower end is formed inside the annular supporting cylinder (12), a first spring (14) is fixed at the upper end of the annular telescopic cavity (13), an annular telescopic cylinder (15) is fixed at the lower end of the first spring (14), and the lower end of the annular telescopic cylinder (15) is connected with the lower end inside the screening box (1).

3. The polluted soil pretreatment screening device according to claim 1, wherein the lifting assembly (9) comprises a supporting rod (7) and an annular lifting cylinder (35), the annular lifting cylinder (35) is fixed on the upper side of the mounting seat (10), a lifting cavity (38) is formed inside the annular lifting cylinder (35), a wavy bulge (39) is arranged at the bottom of the lifting cavity (38), a sealing seat (36) is slidably connected to the upper end of the annular lifting cylinder (35), a sliding hole (37) is formed in the sealing seat (36), a driving rod (8) is slidably connected in the sliding hole (37), the lower end of the driving rod (8) is located in the lifting cavity (38), the upper end of the driving rod (8) is fixedly connected with the supporting rod (7), and the other end of the supporting rod (7) is fixedly connected with the driving shaft (5).

4. The polluted soil pretreatment screening device according to claim 3, wherein the stirring assembly (6) comprises a stirring shaft (24), the upper end of the stirring shaft (24) is fixedly connected with the driving shaft (5), a plurality of stirring blades (31) are arranged on the outer side of the stirring shaft (24), a driving cavity (25) with an opening at the lower end is formed in the stirring shaft (24), the lower end of the driving cavity (25) is rotatably connected with a rotating base (26), a guide column (42) is fixed on the outer periphery of the rotating base (26), a lifting slide rail (41) is fixed on the inner periphery of the annular lifting cylinder (35), the other end of the guide column (42) is slidably connected with the lifting slide rail (41), a mounting block (27) is fixed on the upper side of the rotating base (26), a mounting shaft (28) is fixed on the upper side of the mounting block (27), and a plurality of cams (29) are fixed on the outer side of the mounting shaft (28), the periphery of (mixing) shaft (24) is fixed with return seat (30), the return chamber that communicates with drive chamber (25) is seted up to the inside of return seat (30), stirring leaf (31) and return seat (30) sliding connection, the one end that stirring leaf (31) are located the return intracavity is fixed with deflector (32), one side that cam (29) were kept away from in deflector (32) is fixed with second spring (33), the other end and return seat (30) fixed connection of second spring (33), be fixed with a plurality of vortex blades (34) on stirring leaf (31), the length direction of vortex blade (34) is perpendicular with the length direction of stirring leaf (31).

5. The polluted soil pretreatment screening device according to claim 1, wherein a plurality of screening holes (43) are formed in the screening net (11), an arc-shaped material guide plate (16) is fixed inside the screening box (1), the arc-shaped material guide plate (16) is located below the screening net (11), a plurality of dredging rods (17) are fixed on the upper side of the arc-shaped material guide plate (16), the dredging rods (17) correspond to the screening holes (43) one to one, the outer diameter of each dredging rod (17) is smaller than the inner diameter of each screening hole (43), and blanking gaps are formed between the left end and the right end of each arc-shaped material guide plate (16) and the elastic components.

6. A polluted soil pretreatment screening device as claimed in claim 1, wherein a water tank (19) is arranged at the upper end of the screening box (1), an air inlet pipe (20) is connected to the water tank (19), a corrugated pipe (21) is fixed at the upper end of the air inlet pipe (20), a sealing cover (22) is fixed at the other end of the corrugated pipe (21), and the sealing cover (22) is in sliding fit with the feed hopper (3).

7. A contaminated soil pretreatment screening device according to claim 6, characterized in that a heat conducting cover (23) is provided at the lower middle part of said water tank (19), and the first motor (4) is located inside the heat conducting cover (23).

8. The polluted soil pretreatment screening device according to claim 1, wherein a base (44) is arranged at the lower end of the supporting leg (2), an equipment cavity is formed in the base (44), a second motor (52) is fixed in the equipment cavity, a supporting shaft (53) is fixed at the output shaft end of the second motor (52), two threaded sections (54) are arranged on the supporting shaft (53), the thread directions of the two threaded sections (54) are opposite, a moving seat (55) is in threaded connection with each of the two threaded sections (54), a first driving column (56) is connected to the lower side of the moving seat (55) through a connecting seat, a lifting seat (49) is connected to the lower end of the first driving column (56) through the connecting seat, and a moving wheel (50) is arranged on the lower side of the lifting seat (49).

9. The polluted soil pretreatment screening device according to claim 8, wherein the left side and the right side of the equipment cavity are provided with limiting sliding grooves (51), and the left end and the right end of the lifting seat (49) are slidably connected with the limiting sliding grooves (51).

10. The polluted soil pretreatment screening device according to claim 8, wherein fixing plates (57) are fixed at the left and right ends of the outer periphery of the supporting shaft (53), a third spring (58) is fixed at one side of the fixing plate (57) close to the threaded section (54), a sliding seat (59) is fixed at the other end of the third spring (58), the sliding seat (59) is slidably connected with the supporting shaft (53), a limiting bulge is further fixed on the supporting shaft (53), the sliding seat (59) is positioned between the fixing plate (57) and the limiting bulge, an extrusion rod (61) is fixed at one side of the movable seat (55) close to the sliding seat (59), a second driving column (60) is rotatably connected to the upper side of the sliding seat (59) through a connecting seat, a damping plate (45) is connected to the other end of the second driving column (60), and an expansion rod (46) is fixed to the upper side of the damping plate (45), a supporting seat (48) is fixed at the upper end of the telescopic rod (46), a fourth spring (47) is fixed between the supporting seat (48) and the damping plate (45), and the lower end of the supporting leg (2) is fixedly connected with the upper side of the supporting seat (48).

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