CN114985414B

CN114985414B - Method and equipment for screening and separating urban dregs

Info

Publication number: CN114985414B
Application number: CN202210599172.XA
Authority: CN
Inventors: 贾斌
Original assignee: Hangzhou Xinhangye Construction Co ltd
Current assignee: Hangzhou Xinhangye Construction Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-05-05
Anticipated expiration: 2042-05-30
Also published as: CN114985414A

Abstract

The invention discloses a method and equipment for screening and separating urban residue soil, which comprises a bracket, wherein crushing rollers are symmetrically and rotatably arranged in the bracket, one end of the bracket is provided with a driving device for driving the crushing rollers, the other side of the bracket is provided with an adjusting device for adjusting the crushing rollers, the bottom of the bracket is fixedly provided with a conveyor belt, one end of the conveyor belt is provided with an adjusting frame, an installing frame is arranged in the adjusting frame, one end of the installing frame is rotatably matched with the adjusting frame, one side of the adjusting frame is provided with a supporting device for adjusting the height of the installing frame, a screen roller is rotatably arranged in the installing frame, one end of the conveyor belt is positioned in the screen roller, a transmission device for driving the screen roller to rotate is fixedly connected to the installing frame, one side of the screen roller is provided with a spraying device fixedly connected with the installing frame, and a controller is arranged on the bracket.

Description

Method and equipment for screening and separating urban dregs

Technical Field

The invention relates to the technical field of slag soil screening, in particular to a method and equipment for screening and separating urban slag soil.

Background

The soil-clamping stone material is produced in the operations of house demolishing, municipal engineering, earth-rock engineering and the like, is not suitable for plant growth and road backfill, generally needs a barrel landfill waste mode to treat, directly wastes a large amount of land resources, and filled low-lying lands can destroy the water storage function to cause urban waterlogging.

The soil-rock material in municipal engineering is troublesome to process, inconvenient to reutilize, and a solution is provided below aiming at the problems.

Disclosure of Invention

The invention aims to provide a method and equipment for screening and separating urban slag soil, which are used for screening and separating soil-stone materials and are convenient for secondary utilization.

The technical aim of the invention is realized by the following technical scheme:

the utility model provides a be used for city dregs screening splitter, includes the support, the inside symmetry of support just rotates and is provided with crushing roller, the one end of support is provided with the drive arrangement who drives crushing roller, the opposite side of support is provided with the adjusting device who is used for adjusting crushing roller, the fixed conveyer belt that is provided with in support bottom, the one end of conveyer belt is provided with the alignment jig, the inside mounting bracket that is provided with of alignment jig, the one end and the alignment jig normal running fit of mounting bracket, one side of alignment jig is provided with the strutting arrangement who is used for adjusting the mount height, the inside rotation of mounting bracket is provided with the gauze cylinder, the one end of conveyer belt is located inside the gauze cylinder, fixedly connected with is used for driving gauze cylinder pivoted transmission on the mounting bracket, gauze cylinder one side is provided with the spray set with mounting bracket fixed connection, be provided with the controller on the support.

By adopting the technical scheme, the soil and stone materials are placed between the two crushing rollers, the gap between the two crushing rollers is adjusted through the adjusting device, thereby the diameter of the screened and crushed materials is adjusted, the driving device drives the two crushing rollers to rotate towards the direction close to each other, thereby the soil and stone materials are crushed and filtered, the soil blocks with the masses and the smaller stone blocks are crushed, the larger stone blocks are filtered from the upper ends of the two crushing rollers, the smaller soil and stone blocks fall out from between the two crushing rollers, the smaller soil and stone blocks can fall on the conveyor belt, the inside of the gauze roller is entered through the movement of the conveyor belt, the gauze roller can be driven to rotate through the driving device, the rotating roller can collide the materials, the soil blocks are finer, the small holes on the gauze roller are better leaked out, the larger stone blocks can leak out from the other end of the gauze roller, the material is fed into the fine screen through the adjusting supporting device, the inclination angle of the gauze roller is adjusted, thereby the inside of the gauze roller is changed, the alkalinity of the screen can be guaranteed, and the alkalinity can be sprayed from the screen can be improved, and the alkalinity can be sprayed in the screen can be improved.

Preferably, the spraying device comprises a water storage box, a water pump and a spray nozzle, wherein the water storage box is located on one side of the mounting frame, the water pump is installed at the top of the water storage box, the input end of the water pump penetrates through the top of the water storage box, the spray nozzle is installed on one side of the mounting frame, two ends of the spray nozzle are symmetrically and fixedly connected with a rotating rod, the rotating rod penetrates through the mounting frame and is in running fit with the mounting frame, one end of the rotating rod, which is far away from the spray nozzle, is fixedly connected with a regulating disc, a bolt is arranged on the mounting frame in a penetrating manner, the bolt is in threaded fit with the mounting frame, one end of the bolt is in contact with the rotating rod, and the water inlet end of the spray nozzle is connected with the output end of the water pump.

Adopt above-mentioned technical scheme, store the neutralizer through the water storage box, water pump and controller electric connection, the controller starts the water pump, take out the neutralizer from the water storage box is inside through the water pump, spray out through the shower nozzle at last and carry out acid-base neutralization to the material, simultaneously can remove the restriction through unscrewing the bolt for the bull stick, the bull stick rotates the bull stick through the regulating disk conveniently, the bull stick rotates and drives the shower nozzle and rotate, thereby adjusts the angle of shower nozzle, makes things convenient for the spraying of neutralizer.

Preferably, the driving device comprises two worms, worm wheels, a coupling, a motor I and a driving frame, wherein the driving frame is fixedly connected with a support, the two worms are arranged, the two worms are opposite in thread direction, the two worms are symmetrically and rotationally arranged inside the driving frame, the coupling is positioned between the two worms, two ends of the coupling are respectively fixedly connected with one end of the two worms, the motor I is fixed at one end of the driving frame, the output end of the motor I passes through the driving frame and one end of one of the two worms to be fixedly connected, the output end of the motor I is in running fit with the driving frame, the worm wheels are provided with two worm wheels, the worm wheels are respectively corresponding to and meshed with the two worms, one end of the two worms is fixedly connected with a rotating shaft, and the two rotating shafts are respectively connected with one end of the support and two crushing rollers in a penetrating mode.

By adopting the technical scheme, the motor I and the controller electric connection, the controller controls the motor I to rotate, the motor drives the worm to rotate for a while, and the two worms are connected through the coupling, so that the two worms synchronously rotate, and because the thread directions of the two worms are opposite, the two worm wheels rotate towards opposite directions, namely, the worm wheels drive the rotating shafts to rotate, the rotating shafts drive the crushing rollers to rotate, when the distance between the two crushing rollers is adjusted, the crushing rollers can mobilize the rotating shafts to move, the rotating shafts can drive the worm wheels to move, so that the worm wheels roll on the worm, the worm wheels and the worm are not separated, and the gap between the crushing rollers is convenient to adjust.

Preferably, the supporting device comprises a hydraulic cylinder and T-shaped blocks, arc-shaped grooves are symmetrically formed in the adjusting frame, connecting rods are slidably arranged in the arc-shaped grooves, one ends of the connecting rods are fixedly connected with the side faces of the mounting frame, the hydraulic cylinder is fixed between the adjusting frame and the mounting frame, the T-shaped blocks are provided with two cross grooves, the connecting rods respectively penetrate through the cross grooves of the two T-shaped blocks, the two T-shaped blocks are connected through connecting plates, and the output end of the hydraulic cylinder is fixed at the bottom of the connecting plates.

By adopting the technical scheme, the controller and the hydraulic cylinder are electrically connected, the hydraulic cylinder is controlled to be started by the controller, the hydraulic cylinder is started to drive the connecting plate to move, the connecting plate simultaneously pushes the two T-shaped blocks to move, the transverse groove on the T-shaped blocks can drive the connecting rod to move, so that the connecting rod pushes the mounting frame to rotate, the connecting rod moves in an arc manner due to the fact that the mounting frame moves in an arc manner, the connecting rod slides in the transverse groove and the arc groove, and the clamping is avoided.

Preferably, the adjusting device comprises a bidirectional threaded rod, an adjusting block, a frame and a second motor, wherein the frame is arranged at one end of the support, the bidirectional threaded rod is rotationally arranged inside the frame, the adjusting block is respectively sleeved at two ends of the bidirectional threaded rod, the second motor is fixed at one end of the frame, the output end of the second motor passes through one end fixedly connected with the frame and the bidirectional threaded rod, a supporting rod is arranged on the adjusting block in a penetrating manner, the supporting rod is in rotary fit with the adjusting block, and the supporting rod passes through the frame and the support to be fixedly connected with the crushing roller.

By adopting the technical scheme, the motor II is electrically connected with the controller, the motor II is controlled by the controller to be started, the motor II can drive the bidirectional threaded rod to rotate, the bidirectional threaded rod can drive the two adjusting blocks to move towards opposite directions, the two adjusting blocks drive the supporting rods to move, the two supporting rods drive the crushing rollers to move, and accordingly the gap between the two crushing rollers is adjusted.

Preferably, the transmission device comprises a motor III, a gear and a gear ring, wherein the motor III is fixed on the mounting frame, the gear ring is sleeved on the gauze roller, the gear is fixedly connected with the output end of the motor III, and the gear ring are meshed with each other.

By adopting the technical scheme, the motor III is electrically connected with the controller, the controller controls the motor III to start, the motor III can drive the gear to rotate, the gear ring can be driven to rotate, and the gauze drum is driven to rotate through the gear ring.

A screening and separating method using urban residue soil screening and separating equipment comprises the following steps:

a. selecting: selecting a soil-rock material without steel bars;

b, preliminary screening and crushing: c, primarily screening the soil-rock materials selected in the step a, so that stones with diameters larger than 2.5cm in the soil-rock materials are separated, and crushing the agglomerated soil to ensure that the diameters of the materials are smaller than 2.5cm;

c, transportation: transporting the material with the diameter smaller than 2.5cm in the step b;

d, fine filtration: c, filtering the transported materials in the step c, separating out stone blocks with the diameter larger than 1.8cm from the materials, and secondarily crushing the soil blocks with the diameter larger than 1.8 cm;

and e, neutralization: spraying a neutralizing agent into the material with the diameter smaller than 1.8 in the step d, so as to balance the pH value of the material.

Preferably, in the step c, a conveyor belt is used for conveying.

Preferably, the neutralizing agent in the step e is an acidic neutralizing agent.

The beneficial effects are that: the soil blocks and smaller stones which are agglomerated are crushed by the crushing roller, larger stones are separated, secondary filtration is carried out through the gauze roller, and the filtered materials can be neutralized to be mild in acid and alkali by spraying the neutralizer, so that the soil is balanced in acid and alkali and loose, the subsequent utilization is convenient, the environmental damage is reduced, and the utilization rate is improved.

Drawings

FIG. 1 is a schematic diagram of a first embodiment;

FIG. 2 is a top view of the first embodiment;

fig. 3 is a schematic diagram showing a supporting device according to an embodiment.

Reference numerals: 1. a bracket; 2. a pulverizing roller; 3. a driving device; 4. an adjusting device; 5. a conveyor belt; 6. an adjusting frame; 7. a mounting frame; 8. a support device; 9. a screen drum; 10. a transmission device; 11. a spraying device; 12. a controller; 13. a water storage box; 14. a water pump; 15. a spray head; 16. a rotating rod; 17. an adjusting plate; 18. a bolt; 19. a worm; 20. a worm wheel; 21. a coupling; 22. a first motor; 23. a drive rack; 24. a hydraulic cylinder; 25. a T-shaped block; 26. an arc-shaped groove; 27. a connecting rod; 28. a transverse groove; 29. a two-way threaded rod; 30. an adjusting block; 31. a frame; 32. a second motor; 33. a support rod; 34. a third motor; 35. a gear; 36. and a gear ring.

Detailed Description

The following description is only of the preferred embodiments of the present invention, and the scope of the present invention should not be limited to the examples, but should be construed as falling within the scope of the present invention. It should also be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention are intended to be comprehended within the scope of the present invention.

Example 1

Referring to fig. 1 to 3, an apparatus for screening and separating urban residue soil comprises a bracket 1, wherein the bracket 1 is internally symmetrically and rotatably provided with a crushing roller 2, one end of the bracket 1 is provided with an adjusting device 4 for adjusting the crushing roller 2, the adjusting device 4 comprises a bidirectional threaded rod 29, an adjusting block 30, a frame 31 and a second motor 32, the frame 31 is arranged at one end of the bracket 1, the bidirectional threaded rod 29 is rotatably arranged inside the frame 31, the adjusting block 30 is respectively sleeved at two ends of the bidirectional threaded rod 29, the second motor 32 is fixed at one end of the frame 31, the output end of the second motor 32 passes through one end fixed connection of the frame 31 and the bidirectional threaded rod 29, a supporting rod 33 is arranged on the adjusting block 30 in a penetrating manner, the supporting rod 33 and the adjusting block 30 are in rotary fit, and the supporting rod 33 passes through the frame 31 and the bracket 1 to be fixedly connected with the crushing roller 2.

The second motor 32 is electrically connected with the controller 12, the second motor 32 is controlled to be started by the controller 12, the second motor 32 can drive the bidirectional threaded rod 29 to rotate, the bidirectional threaded rod 29 can drive the two adjusting blocks 30 to move in opposite directions, the two adjusting blocks 30 drive the supporting rods 33 to move, the two supporting rods 33 drive the crushing rollers 2 to move, and accordingly the gap between the two crushing rollers 2 is adjusted.

The other side of the support 1 is provided with a driving device 3 for driving the crushing roller 2, the driving device 3 comprises worm shafts 19, worm wheels 20, a coupler 21, a motor I22 and a driving frame 23, the driving frame 23 is fixedly connected with the support 1, the worm shafts 19 are provided with two worm shafts 19, the two worm shafts 19 are symmetrically and rotatably arranged in the driving frame 23, the coupler 21 is positioned between the two worm shafts 19, two ends of the coupler 21 are fixedly connected with one ends of the two worm shafts 19 respectively, the motor I22 is fixed at one end of the driving frame 23, the output end of the motor I22 passes through the driving frame 23 and one end of one worm shaft 19 to be fixedly connected, the output end of the motor I22 is in running fit with the driving frame 23, the worm wheels 20 are provided with two worm wheels 20 which are respectively corresponding to and meshed with the two worm shafts 19, one end of the two worm shafts 19 are fixedly connected with rotating shafts, and the two rotating shafts penetrate through the support 1 and one end of the two crushing roller 2.

When adjusting the interval between two crushing roller 2, crushing roller 2 can transfer the pivot and remove, and the pivot can drive worm wheel 20 and remove to make worm wheel 20 roll on worm 19, can not cause the separation of worm wheel 20 and worm 19, thereby conveniently adjust the clearance between the crushing roller 2.

Placing the soil-clamping stone material between two crushing rollers 2, motor one 22 and controller 12 electric connection, controller 12 control motor one 22 rotates, motor one 22 can drive worm 19 rotation, two worm 19 pass through shaft coupling 21 and connect, thereby make two worm 19 synchronous rotation, because the screw thread opposite direction of two worm 19, make two worm wheel 20 rotate towards opposite direction, namely worm wheel 20 drive pivot rotation, the pivot drives crushing roller 2 rotation, two crushing roller 2 rotate towards the direction that is close to each other, thereby smash and filter the soil-clamping stone material, make the earth piece of staple bolt and less stone piece smash, filter great stone piece from two crushing roller 2 upper ends, less earth and stone piece fall out from between two crushing roller 2.

The fixed conveyer belt 5 that is provided with in support 1 bottom, the one end of conveyer belt 5 is provided with alignment jig 6, the inside mounting bracket 7 that is provided with of alignment jig 6, the one end and the alignment jig 6 normal running fit of mounting bracket 7 inside rotate and are provided with gauze drum 9, the one end of conveyer belt 5 is located gauze drum 9 inside, fixedly connected with is used for driving gauze drum 9 pivoted transmission 10 on the mounting bracket 7, transmission 10 includes motor III 34, gear 35 and ring gear 36, motor III 34 is fixed on mounting bracket 7, the ring gear 36 cover is established on gauze drum 9, gear 35 and motor III 34's output fixed connection, gear 35 and ring gear 36 intermeshing.

Smaller earth and stone can fall on conveyer belt 5, enter into the gauze drum 9 inside through the motion of conveyer belt 5, motor three 34 and controller 12 electric connection, controller 12 control motor three 34 starts, motor three 34 can drive gear 35 and rotate gear 35 and can drive ring gear 36 rotation, drive gauze drum 9 rotation through ring gear 36, the pivoted cylinder can strike the material for the soil block is finer, better spills through the aperture on the gauze drum 9, and bigger stone can pass through to spill from the other end of gauze drum 9, advances the fine screen to the material.

One side of the adjusting frame 6 is provided with a supporting device 8 for adjusting the height of the mounting frame 7, the supporting device 8 comprises a hydraulic cylinder 24 and T-shaped blocks 25, arc grooves 26 are symmetrically formed in the adjusting frame 6, connecting rods 27 are arranged in the arc grooves 26 in a sliding mode, one ends of the connecting rods 27 are fixedly connected with the side faces of the mounting frame 7, the hydraulic cylinder 24 is fixed between the adjusting frame 6 and the mounting frame 7, the T-shaped blocks 25 are provided with two transverse grooves 28, two connecting rods 27 respectively penetrate through the transverse grooves 28 in the two T-shaped blocks 25, the two T-shaped blocks 25 are connected through connecting plates, and the output ends of the hydraulic cylinders 24 are fixed at the bottoms of the connecting plates.

The controller 12 and the hydraulic cylinder 24 electric connection, control the hydraulic cylinder 24 start through the controller 12, the hydraulic cylinder 24 starts and can drive the connecting plate and remove, the connecting plate promotes two T shape pieces 25 simultaneously and removes, the horizontal groove 28 on the T shape piece 25 can drive the connecting rod 27 and remove, thereby make connecting rod 27 promote the mounting bracket 7 and rotate, because mounting bracket 7 is circular arc motion, make connecting rod 27 be circular arc motion, connecting rod 27 can slide in horizontal groove 28 and arc groove 26 inside, avoid the card to die, through adjusting strutting arrangement 8, thereby adjust the inclination of gauze drum 9, thereby change the moving speed of the inside material of gauze drum 9, guarantee the screening effect.

The screen cylinder 9 one side is provided with the spray set 11 with mounting bracket 7 fixed connection, spray set 11 includes water storage box 13, water pump 14 and shower nozzle 15, water storage box 13 is located one side of mounting bracket 7, the top at water storage box 13 is installed to water pump 14, the top of water storage box 13 is passed to the input of water pump 14, one side at mounting bracket 7 is installed to shower nozzle 15, the both ends symmetry and the fixedly connected with bull stick 16 of shower nozzle 15, bull stick 16 pass mounting bracket 7 and with mounting bracket 7 normal running fit, the one end fixedly connected with regulating disk 17 of shower nozzle 15 is kept away from to bull stick 16, wear to be equipped with bolt 18 on the mounting bracket 7, bolt 18 and mounting bracket 7 screw-thread fit, and the one end and the bull stick 16 of bolt 18 contact, the inlet end of shower nozzle 15 is connected with the output of water pump 14.

Store the neutralizer through water storage box 13, water pump 14 and controller 12 electric connection, controller 12 starts water pump 14, take out the neutralizer from water storage box 13 inside through water pump 14, spray out through shower nozzle 15 at last and carry out acid-base neutralization to the material, simultaneously can remove the restriction through unscrewing bolt 18 for bull stick 16, conveniently rotate bull stick 16 through regulating plate 17, bull stick 16 rotates and drives shower nozzle 15 rotation, thereby adjusts the angle of shower nozzle 15, the spraying of convenient neutralizer.

Example two

a. selecting: selecting a soil-rock material without steel bars;

c, transportation: b, conveying the materials with the diameter smaller than 2.5cm in the step b by adopting a conveyor belt;

and e, neutralization: spraying an acidic neutralizing agent to the material with the diameter smaller than 1.8 in the step d, so as to balance the pH value of the material.

The method is characterized in that materials with metal materials such as steel bars and the like are directly avoided by adopting a manual selection mode, stone with larger diameter is separated out by adopting a preliminary screening and crushing mode, stone with smaller diameter and soil with larger diameter are crushed by extrusion, the fluffiness is ensured, the diameters of the soil and the stones after preliminary screening are smaller than 2.5cm, the materials subjected to preliminary screening are directly transported by adopting a conveyor belt, the efficiency is ensured, the materials subjected to preliminary screening are subjected to fine filtration, stone with the diameter larger than 1.8cm in the materials is further separated out by the fine filtration, meanwhile, the clay is further crushed, the clay is fluffy, and finally, acid and alkali neutralizers are adopted to balance the pH value, so that the soil is balanced and loose, the subsequent utilization is facilitated, the environmental damage is reduced, and the utilization rate is improved.

Claims

1. The utility model provides a city dregs screening splitter, includes support (1), its characterized in that, support (1) inside symmetry and rotation are provided with crushing roller (2), the one end of support (1) is provided with drive arrangement (3) of drive crushing roller (2), the opposite side of support (1) is provided with adjusting device (4) that are used for adjusting crushing roller (2), support (1) bottom is fixed to be provided with conveyer belt (5), the one end of conveyer belt (5) is provided with regulating frame (6), inside mounting bracket (7) that are provided with of regulating frame (6), the one end and the regulating frame (6) normal running fit of mounting bracket (7), one side of regulating frame (6) is provided with strutting arrangement (8) that are used for adjusting the height of mounting bracket (7), inside rotation of mounting bracket (7) is provided with gauze drum (9), the one end of conveyer belt (5) is located inside gauze drum (9), fixedly connected with on mounting bracket (7) is used for driving gauze drum (9) pivoted transmission (10), gauze drum (9) one side is provided with shower (12) fixedly connected with on support (1).

The spraying device is characterized in that the spraying device (11) comprises a water storage box (13), a water pump (14) and a spray head (15), the water storage box (13) is located on one side of the mounting frame (7), the water pump (14) is installed at the top of the water storage box (13), the input end of the water pump (14) penetrates through the top of the water storage box (13), the spray head (15) is installed on one side of the mounting frame (7), two ends of the spray head (15) are symmetrically and fixedly connected with a rotating rod (16), the rotating rod (16) penetrates through the mounting frame (7) and is in running fit with the mounting frame (7), one end, far away from the spray head (15), of the rotating rod (16) is fixedly connected with an adjusting disc (17), a bolt (18) is penetrated on the mounting frame (7), the bolt (18) is in threaded fit with the mounting frame (7), one end of the bolt (18) is contacted with the rotating rod (16), and the water inlet end of the spray head (15) is connected with the output end of the water pump (14).

The driving device (3) comprises worms (19), worm wheels (20), a shaft coupling (21), a first motor (22) and a driving frame (23), wherein the driving frame (23) is fixedly connected with a support (1), the two worms (19) are arranged, the two worms (19) are opposite in thread direction, the two worms (19) are symmetrically and rotationally arranged in the driving frame (23), the shaft coupling (21) is positioned between the two worms (19), two ends of the shaft coupling (21) are fixedly connected with one ends of the two worms (19) respectively, the first motor (22) is fixed at one end of the driving frame (23), the output end of the first motor (22) penetrates through the driving frame (23) and one end of one worm (19) to be fixedly connected, the output end of the first motor (22) is in running fit with the driving frame (23), the two worms (20) are respectively corresponding to and meshed with the two worms (19), one ends of the two worm wheels (19) are fixedly connected with one ends of the two worm wheels (19) respectively, and the two supports (1) penetrate through one ends of the two rotating shafts (2) to be fixedly connected with one ends of the crushing rolls;

support arrangement (8) are including hydraulic cylinder (24) and T shape piece (25), arc wall (26) have been seted up to symmetry on alignment jig (6), arc wall (26) inside slip is provided with connecting rod (27), the side fixed connection of one end and mounting bracket (7) of connecting rod (27), hydraulic cylinder (24) are fixed between alignment jig (6) and mounting bracket (7), T shape piece (25) are provided with two, two cross slot (28) have all been seted up on T shape piece (25), two connecting rod (27) pass cross slot (28) on two T shape pieces (25) respectively, two T shape piece (25) are connected through the link plate, the output of hydraulic cylinder (24) is fixed in the bottom of link plate.

2. The urban residue soil screening and separating device according to claim 1, wherein the adjusting device (4) comprises a bidirectional threaded rod (29), an adjusting block (30), a frame (31) and a second motor (32), the frame (31) is installed at one end of the support (1), the bidirectional threaded rod (29) is rotatably arranged inside the frame (31), the adjusting block (30) is respectively sleeved at two ends of the bidirectional threaded rod (29), the second motor (32) is fixed at one end of the frame (31), the output end of the second motor (32) is fixedly connected with one end of the bidirectional threaded rod (29) through the frame (31), a supporting rod (33) is arranged on the adjusting block (30) in a penetrating mode, the supporting rod (33) and the adjusting block (30) are in rotary fit, and the supporting rod (33) is fixedly connected with the crushing roller (2) through the frame (31) and the support (1).

3. The urban residue soil screening and separating device according to claim 1, wherein the transmission device (10) comprises a motor III (34), a gear (35) and a gear ring (36), the motor III (34) is fixed on the mounting frame (7), the gear ring (36) is sleeved on the gauze drum (9), the output ends of the gear (35) and the motor III (34) are fixedly connected, and the gear (35) and the gear ring (36) are meshed with each other.

4. A screening separation method using the urban residue screening separation apparatus according to any one of claims 1 to 3, characterized by comprising the steps of:

a. selecting: selecting a soil-rock material without steel bars;

5. The screening separation method of claim 4, wherein the step c is performed by using a conveyor belt.

6. The screening separation method according to claim 4, wherein the neutralizing agent in the step e is an acidic neutralizing agent.