CN113663780A

CN113663780A - Crawler-type mobile crushing station for recycling construction waste

Info

Publication number: CN113663780A
Application number: CN202110972483.1A
Authority: CN
Inventors: 马倩; 綦家坤; 孙元昌
Original assignee: Qingdao Xingye Commercial Concrete Co ltd
Current assignee: Qingdao Xingye Commercial Concrete Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-11-19

Abstract

The application relates to a crawler-type mobile crushing station for recycling construction wastes, which belongs to the field of concrete waste recycling and comprises a machine body, wherein a feeding mechanism, a crushing mechanism and a transmission mechanism are sequentially arranged on the machine body; the crushing mechanism comprises a cover body fixedly arranged on the machine body, a crushing roller is rotatably connected in the cover body, an abrasion-resistant plate is fixedly arranged on the inner wall of the cover body, and the abrasion-resistant plate and the crushing roller are matched to crush the construction waste; a screening mechanism is arranged below the crushing roller of the machine body; the screening mechanism comprises a positioning frame arranged in the machine body, a first screen and a second screen are arranged in the positioning frame, the first screen and the second screen are magnetic screens, the first screen is located above the second screen, and meshes of the first screen are larger than meshes of the second screen. This application has the iron wire among the building waste of getting rid of after the breakage, improves the effect of the grit aggregate's of retrieving quality.

Description

Crawler-type mobile crushing station for recycling construction waste

Technical Field

The application relates to the field of concrete waste recovery, in particular to a crawler-type mobile crushing station for recovering construction waste.

Background

The movable crushing station has the advantages of strong mobility, integrated whole set of units, reduced material transportation cost, direct and effective operation effect, flexible combination, strong adaptability and the like, is widely applied to material processing of metallurgy, chemical engineering, building materials, water and electricity and the like which often need to be moved, in particular to the operation of flowable stone materials of highways, railways, hydroelectric engineering and the like, and a user can adopt various configuration forms according to the types and scales of processing raw materials and different requirements of finished materials. The current mobile crushing station in China is mostly applied to construction waste treatment engineering in urban removal, the construction waste is crushed and screened into a plurality of recycled aggregates with different sizes and rules, and the construction waste recycling station is the foundation of engineering for realizing resource recycling of the construction waste in China.

However, before concrete is poured, steel bars need to be bound together by using iron wires, so that a large number of iron wires are left in the construction waste, the construction waste is crushed into aggregates, the aggregates are doped with the iron wires, and the quality of the aggregates is affected by the iron wires.

Disclosure of Invention

In order to get rid of the iron wire among the building waste after the breakage, improve the quality of the grit aggregate of retrieving, this application provides a broken station is removed to crawler-type of building waste recovery.

The application provides a broken station of crawler-type removal that building waste retrieved adopts following technical scheme:

a crawler-type mobile crushing station for recycling construction wastes comprises a machine body, wherein a feeding mechanism, a crushing mechanism and a transmission mechanism are sequentially arranged on the machine body; the crushing mechanism comprises a cover body fixedly arranged on the machine body, a crushing roller is rotatably connected in the cover body, an abrasion-resistant plate is fixedly arranged on the inner wall of the cover body, and the abrasion-resistant plate and the crushing roller are matched to crush the construction waste; a screening mechanism is arranged below the crushing roller of the machine body; the screening mechanism comprises a positioning frame arranged in the machine body, a first screen and a second screen are arranged in the positioning frame, the first screen and the second screen are magnetic screens, the first screen is located above the second screen, and meshes of the first screen are larger than meshes of the second screen.

Through adopting above-mentioned technical scheme, feed mechanism adds the internal with building waste, antifriction plate and crushing roller cooperation are the grit aggregate to building waste breakage, and the grit aggregate after the breakage drops in proper order on first screen cloth and the second screen cloth, and first screen cloth and second screen cloth can carry out twice screening to the iron wire in the grit aggregate, get rid of more thoroughly the iron wire in the grit aggregate, can get rid of the iron wire in the building waste after the breakage, improve the quality of the grit aggregate of retrieving.

Optionally, four corners of the bottom of the positioning frame are fixedly provided with a vibration spring, one end of the vibration spring, which is far away from the positioning frame, is fixedly arranged in the machine body, and one end of the positioning frame is fixedly provided with a vibration motor.

Through adopting above-mentioned technical scheme, vibrating motor is used for driving the locating rack vibration, is convenient for drop the grit aggregate on first screen cloth and the second screen cloth and blocks up first screen cloth and second screen cloth.

Optionally, be provided with the reserve screen cloth one the same with first screen cloth structure on the locating rack, the locating rack slides on and is connected with the support frame, and first screen cloth and reserve screen cloth one can be dismantled and connect on the support frame, and the bottom of support frame has set firmly rack one, and the one end that is located vibrating motor of locating rack has set firmly motor one, and the output of motor one has set firmly gear one, and gear one and the rack meshing of support frame bottom.

Through adopting above-mentioned technical scheme, use a period after, adsorb on the first screen cloth and have a large amount of iron wires, need clear up first screen cloth, driving motor corotation drives the support frame and slides to organism one side, with first screen cloth roll-off organism, makes the below of reserve screen cloth slip to the crushing roller, and the iron wire in the a pair of aggregate of reserve screen cloth adsorbs, can realize not shutting down and change or clear up the iron wire on the first screen cloth. On the contrary, when the first standby screen needs to be cleaned or replaced, the first motor rotates reversely to drive the support frame to slide towards the other side of the machine body, so that the first standby screen slides out of the machine body, the first screen slides to the lower side of the crushing roller, and the iron wires in the aggregates are continuously screened for the first time.

Optionally, a first step groove is formed in the support frame, and the first screen and the standby screen are clamped in the first step groove.

Through adopting above-mentioned technical scheme, motor one drive support frame slides, with reserve screen cloth one or first screen cloth roll-off organism external, can take out reserve screen cloth one or first screen cloth from the support frame, be convenient for to the iron wire of the first screen cloth adsorption of clearance reserve screen cloth one or first screen cloth or change reserve screen cloth one or first screen cloth.

Optionally, a first chute has been seted up to the position that the support frame is close to the top, and first chute is towards feed mechanism's one end downward sloping, and the support frame slides and connects in first chute, and the organism is located feed mechanism's below and is provided with the transmission band, and the one end of transmission band is connected with the lifting machine, and the top of lifting machine extends to the cover internally.

Through adopting above-mentioned technical scheme, after the aggregate after the breakage is great, first screen cloth or reserve screen cloth one keep off not broken building waste down, vibrating motor drives the support frame shake, and first screen cloth and reserve screen cloth one towards the direction downward sloping of transmission band, make great aggregate drop to the transmission band on, finally promote to cover internal carrying out the secondary crushing through the lifting machine.

Optionally, be provided with the reserve screen cloth two the same with second screen cloth structure on the locating rack, it is connected with the mount to slide on the locating rack, and second screen cloth and reserve screen cloth two can be dismantled and connect on the mount, and the bottom of mount has set firmly rack two, and the locating rack lateral wall has set firmly motor two, and the output of motor two has set firmly gear two, and gear two meshes with the rack two of mount bottom, and gear two meshes with rack two.

Through adopting above-mentioned technical scheme, use a period after, adsorb on the second screen cloth and have a large amount of iron wires, need clear up the second screen cloth, two corotation of driving motor drives the mount and slides to organism one side, with second screen cloth roll-off organism, makes two slides of reserve screen cloth to the below of crushing roller, and the iron wire in two pairs of aggregates of reserve screen cloth carries out the secondary and adsorbs, can realize not stopping machine and clear up the iron wire on the second screen cloth, perhaps changes the second screen cloth. On the contrary, when the second standby screen needs to be cleaned or replaced, the second motor rotates reversely to drive the fixing frame to slide towards the other side of the machine body, so that the second standby screen slides out of the machine body, the second screen slides to the lower side of the crushing roller, and the iron wires in the aggregates are continuously screened secondarily.

Optionally, a second step groove is formed in the fixing frame, and the second screen and the standby screen are clamped in the second step groove.

Through adopting above-mentioned technical scheme, the second drive mount of motor slides, and outside the standby screen cloth second or second screen cloth roll-off organism, can take out standby screen cloth second or second screen cloth from the mount, be convenient for clear up the adsorbed iron wire of standby screen cloth second or second screen cloth or change standby screen cloth second or second screen cloth.

Optionally, a buffer assembly is arranged at one end of the cover body close to the feeding mechanism; the buffering subassembly includes the buffer board, and the buffer board all has set firmly the guide post towards the one end downward sloping of crushing roller, four corners department of buffer board, and the vertical slip of guide post is connected in the cover body, and the guide post is equipped with buffer spring after passing the cover body, and the tip that the guide post extends the cover body has set firmly spacing dish, and buffer spring's one end sets firmly on spacing dish, and the other end sets firmly in the top of the cover body.

Through adopting above-mentioned technical scheme, when bold construction waste material from last silo to the crushing roller roll, construction waste material rolls earlier and falls to the buffer board on, the buffer board receives the striking back lapse, drives guide post compression buffer spring, and buffer spring's tension drives the buffer board upward movement, and the buffer board is to ascending resistance of construction waste to prevent that construction waste from directly impacting to the crushing roller on, reduce the striking of construction waste to the crushing roller.

Optionally, a spraying assembly is arranged above the crushing roller on the cover body; the spray assembly comprises a spray pipe fixedly arranged in the cover body, a plurality of spray heads are uniformly and fixedly arranged on one side of the spray pipe facing the crushing roller, and the top of the spray pipe is connected with an external water source.

Through adopting above-mentioned technical scheme, during the breakage, the water in the spray pipe is internal through the shower nozzle spout to building waste and cover, drenches building waste on the one hand, and on the other hand can spray and remove dust, reduces the dust and outwards wafts out.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the positioning frame is arranged below the crushing roller on the machine body, the first screen and the second screen are arranged in the positioning frame, the first screen and the second screen are both magnetic screens, the first screen is arranged above the second screen, meshes of the first screen are larger than meshes of the second screen, crushed sandstone aggregates sequentially fall onto the first screen and the second screen, and the first screen and the second screen can screen iron wires in the sandstone aggregates twice, so that the iron wires in the sandstone aggregates can be removed more thoroughly, the iron wires in the crushed building wastes can be removed, and the quality of the recovered sandstone aggregates is improved;

2. the first standby screen mesh with the same structure as the first screen mesh is arranged on the positioning frame, the positioning frame is connected with the supporting frame in a sliding manner, the first screen mesh and the first standby screen mesh can be detachably connected to the supporting frame, a first rack is fixedly arranged at the bottom of the supporting frame, a first motor is fixedly arranged at one end, located on the vibration motor, of the positioning frame, a first gear is fixedly arranged at the output end of the first motor, the first gear is meshed with the first rack at the bottom of the supporting frame, the first screen mesh slides out of the machine body, the first standby screen mesh slides to the lower side of the crushing roller, and the iron wire in aggregate is adsorbed by the first standby screen mesh, so that the iron wire on the first screen mesh can be replaced without stopping the machine or cleaned;

3. through being provided with the buffer board in the frame, the one end downward sloping of buffer board towards the crushing roller, four corner department of buffer board all set firmly the guide post, the vertical sliding of guide post is connected in the cover body, the cover is equipped with buffer spring after the guide post passes the cover body, the tip that the guide post extends the cover body has set firmly spacing dish, buffer spring's one end sets firmly on spacing dish, the other end sets firmly in the top of the cover body, when bold construction waste material rolled to the crushing roller from last silo, construction waste material rolls earlier on the buffer board, the buffer board receives the striking back lapse, drive guide post compression buffer spring, buffer spring's tension drives the buffer board upward movement, the buffer board is to ascending resistance of construction waste, thereby prevent that construction waste from directly impacting on the crushing roller, reduce the striking of construction waste to the crushing roller.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Fig. 2 is a sectional view of the embodiment.

Fig. 3 is a schematic view of the crushing mechanism.

Fig. 4 is a schematic view of the structure for highlighting the crushing mechanism and the screening mechanism.

Fig. 5 is a schematic structural view of the sifting mechanism.

Fig. 6 is an exploded view of the screening mechanism.

Fig. 7 is an enlarged view of a portion a of fig. 6.

FIG. 8 is an exploded view of the second gear.

Fig. 9 is an enlarged view of a portion B of fig. 8.

Description of reference numerals: 1. a body; 2. a feeding mechanism; 21. a feeding trough; 3. a crushing mechanism; 31. a cover body; 32. a crushing roller; 33. a wear plate; 34. a crushing chamber; 35. a buffer assembly; 351. a buffer plate; 352. a guide post; 353. a buffer spring; 354. a limiting disc; 36. a spray assembly; 361. a water spray pipe; 362. a spray head; 4. a screening mechanism; 41. a positioning frame; 411. a first chute; 412. a support frame; 4121. a first step groove; 413. a first rack; 414. a first motor; 415. a first gear; 416. a second chute; 417. a fixed mount; 4171. a second step groove; 418. a second rack; 419. a second motor; 410. a second gear; 42. a vibration spring; 43. a vibration motor; 44. a first screen; 45. a second screen; 46. a first screen mesh is reserved; 47. a second screen mesh is reserved; 48. a conveyor belt; 49. a hoist; 5. a transport mechanism; 51. and (4) a conveyor belt.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses broken station of crawler-type removal that building waste retrieved. Referring to fig. 1, a crawler-type mobile crushing station for recycling construction waste comprises a machine body 1, wherein a feeding mechanism 2, a crushing mechanism 3 and a transmission mechanism 5 are sequentially arranged on the machine body 1. The feeding mechanism 2 transmits the concrete waste to the crushing mechanism 3, the crushing mechanism 3 crushes the concrete waste into gravel aggregate, and the transmission mechanism 5 transmits the crushed gravel aggregate outwards.

Referring to fig. 2, the feeding mechanism 2 includes a feeding chute 21 fixedly installed on the machine body 1, and the feeding chute 21 is inclined downward toward one end of the crushing mechanism 3 so as to automatically feed the concrete waste in the feeding chute 21 to the crushing mechanism 3.

Referring to fig. 2 and 3, the crushing mechanism 3 includes a cover body 31 fixedly arranged on the machine body 1, the cover body 31 and the machine body 1 together form a crushing chamber 34, a crushing roller 32 is rotatably connected in the cover body 31, a wear plate 33 is fixedly arranged on the inner wall of the cover body 31, the wear plate 33 is an arc-shaped plate, and the wear plate 33 and the crushing roller 32 are matched to extrude and crush the construction waste into gravel aggregate.

One end of the cover body 31 close to the feeding trough 21 is provided with a buffer assembly 35. The buffer assembly 35 comprises a buffer plate 351, the buffer plate 351 is located between the feeding trough 21 and the crushing roller 32, one end of the buffer plate 351, facing the crushing roller 32, inclines downwards, guide columns 352 are fixedly arranged at four corners of the buffer plate 351, the guide columns 352 are vertically arranged in the axial direction, the guide columns 352 are connected in the cover body 31 in a sliding manner, the guide columns 352 penetrate through the cover body 31 and are sleeved with buffer springs 353, the end parts of the guide columns 352, extending out of the cover body 31, are fixedly provided with limit discs 354, one ends of the buffer springs 353 are fixedly arranged on the limit discs 354, and the other ends of the buffer springs 353 are fixedly arranged at the top of the cover body 31; when bold construction waste rolled to crushing roller 32 from last silo 21, construction waste rolled earlier on buffer board 351, and buffer board 351 received the striking back lapse, drives guide post 352 compression buffer spring 353, and buffer spring 353's tension drives buffer board 351 upward movement, and buffer board 351 is to an ascending resistance of construction waste to prevent that construction waste from directly impacting to crushing roller 32 on, reduce the striking of construction waste to crushing roller 32.

Since the crushing roller 32 generates a large amount of dust during crushing, the cover 31 is provided with a shower assembly 36 above the crushing roller 32 in order to reduce the generation of dust. The spraying component 36 comprises a spraying pipe 361 fixedly arranged in the cover body 31, a plurality of spray heads 362 are uniformly and fixedly arranged on one side of the spraying pipe 361 facing the crushing roller 32, and the top of the spraying pipe 361 is connected with an external water source; during crushing, water in the water spray pipe 361 is sprayed into the construction waste and the cover body 31 through the spray head 362, so that the construction waste is wetted, and dust can be removed by spraying, and the dust is reduced from flying outwards.

Referring to fig. 4 and 5, since the crushed aggregate contains a large amount of iron wires, the screen mechanism 4 is provided below the crushing roller 32 in the machine body 1 in order to remove the iron wires from the aggregate and improve the quality of the aggregate. Screening mechanism 4 is including setting up locating rack 41 in organism 1, and locating rack 41 is located the below of crushing roller 32, and four corners department in locating rack 41 bottom has set firmly vibrating spring 42, and the one end that vibrating spring 42 kept away from locating rack 41 sets firmly in organism 1, and the one end of locating rack 41 has set firmly vibrating motor 43, and vibrating motor 43 is used for driving locating rack 41 vibration. Be provided with first screen cloth 44 and second screen cloth 45 in the locating rack 41, first screen cloth 44 and second screen cloth 45 are the magnetic screen cloth, can adsorb the iron wire in the aggregate, and first screen cloth 44 is located the top of second screen cloth 45, and the mesh of first screen cloth 44 is greater than the mesh of second screen cloth 45, and first screen cloth 44 and second screen cloth 45 can carry out twice screening to the iron wire in the grit aggregate to it is more thorough to get rid of the iron wire in the grit aggregate.

Referring to fig. 6 and 7, a first sliding groove 411 is formed in the position, close to the top, of the positioning frame 41, a supporting frame 412 is connected to the first sliding groove 411 in a sliding manner, a first step groove 4121 is formed in the supporting frame 412, and the first screen 44 is clamped in the first step groove 4121; one end of the first screen 44 is provided with a first standby screen 46, the size of the first standby screen 46 is completely the same as that of the first screen 44, and the first standby screen 46 is also clamped in the first stepped groove 4121 of the support frame 412; a first rack 413 is fixedly arranged at the bottom of the support frame 412, a first motor 414 is fixedly arranged at one end, located at the vibration motor 43, of the positioning frame 41, a first gear 415 is fixedly arranged at the output end of the first motor 414, the first gear 415 is meshed with the first rack 413 at the bottom of the support frame 412, and the first gear 415 is meshed with the first rack 413; after the machine is used for a period of time, a large number of iron wires are adsorbed on the first screen 44, the first screen 44 needs to be cleaned, the first driving motor 414 rotates forwards to drive the supporting frame 412 to slide towards one side of the machine body 1, the first screen 44 slides out of the machine body 1, the first standby screen 46 slides to the lower side of the crushing roller 32, the first standby screen 46 adsorbs the iron wires in aggregate, and the iron wires on the first screen 44 can be replaced or cleaned without stopping. On the contrary, when the first standby screen 46 needs to be cleaned or replaced, the first motor 414 rotates reversely to drive the support frame 412 to slide towards the other side of the machine body 1, so that the first standby screen 46 slides out of the machine body 1, the first screen 44 slides to the lower part of the crushing roller 32, and the iron wires in the aggregates are continuously sieved for the first time.

Referring to fig. 5 and 6, the first chute 411 is inclined downward toward one end of the feeding chute 21, so that the first screen 44 and the standby screen inserted into the first chute 411 are both inclined toward one end of the feeding chute 21, a conveying belt 48 is arranged below the feeding chute 21 on the machine body 1, one end of the conveying belt 48 is connected with a lifter 49, and the top of the lifter 49 extends into the cover 31; when the crushed aggregate is larger, the first screen 44 or the first spare screen 46 blocks the uncrushed building waste, the vibration motor 43 drives the support frame 412 to shake, and the first screen 44 and the first spare screen 46 incline downwards towards the conveying belt 48, so that the larger aggregate falls onto the conveying belt 48 and is finally lifted into the cover body 31 by the lifter 49 for secondary crushing.

Referring to fig. 8 and 9, a second sliding groove 416 is formed in the position, close to the bottom, of the positioning frame 41, a fixing frame 417 is connected to the second sliding groove 416 in a sliding manner, a second step groove 4171 is formed in the fixing frame 417, and the second screen 45 is clamped in the second step groove 4171; one end of the second screen 45 is provided with a second standby screen 47, the size of the second standby screen 47 is completely the same as that of the second screen 45, and the second standby screen 47 is also inserted into the second stepped groove 4171 of the fixing frame 417; a second rack 418 is fixedly arranged at the bottom of the fixed frame 417, a second motor 419 is fixedly arranged at one end, far away from the vibration motor 43, of the positioning frame 41, a second gear 410 is fixedly arranged at the output end of the second motor 419, the second gear 410 is meshed with the second rack 418 at the bottom of the fixed frame 417, and the second gear 410 is meshed with the second rack 418; after using a period, second screen cloth 45 is gone up to adsorb there is a large amount of iron wires, need clear up second screen cloth 45, and two 419 corotation of driving motor drives mount 417 and slides to organism 1 one side, with second screen cloth 45 roll-off organism 1, makes two 47 slide below to crushing roller 32 of reserve screen cloth, and two 47 iron wires to the aggregate of reserve screen cloth carry out the secondary and adsorb, can realize not shutting down clearing up the iron wire on the second screen cloth 45, perhaps change second screen cloth 45. On the contrary, when the second spare screen 47 needs to be cleaned or replaced, the second motor 419 rotates reversely to drive the fixing frame 417 to slide towards the other side of the machine body 1, so that the second spare screen 47 slides out of the machine body 1, the second screen 45 slides to the lower part of the crushing roller 32, and the iron wires in the aggregates are continuously screened for the second time.

Referring to fig. 1 and 2, the conveying mechanism 5 includes a conveyor belt 51, and the conveyor belt 51 receives the aggregate filtered by the second screen 45 and conveys the aggregate outward.

The implementation principle of the crawler-type mobile crushing station for recycling construction waste is as follows: the feeding chute 21 transmits the construction waste into the inner cover body 31, and the crushing roller 32 is matched with the wear-resisting plate 33 to crush the construction waste into gravel aggregate; the gravel aggregate falls onto the first screen 44 or the first standby screen 46, the first screen 44 or the first standby screen 46 can adsorb iron wires in the gravel aggregate, the first screen 44 or the first standby screen 46 blocks large concrete waste, the vibration motor 43 drives the support frame 412 to shake, the first screen 44 and the first standby screen 46 incline downwards towards the conveying belt 48, the unbroken concrete waste falls onto the conveying belt 48, and finally the unbroken concrete waste is lifted into the cover body 31 by the lifter 49 to be broken for the second time. The second screen 45 or the second spare screen 47 can remove iron wires in the aggregate for the second time.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A crawler-type mobile crushing station for recycling construction wastes comprises a machine body (1), wherein a feeding mechanism (2), a crushing mechanism (3) and a transmission mechanism (5) are sequentially arranged on the machine body (1); the crushing mechanism (3) comprises a cover body (31) fixedly arranged on the machine body (1), a crushing roller (32) is rotatably connected in the cover body (31), a wear-resistant plate (33) is fixedly arranged on the inner wall of the cover body (31), and the wear-resistant plate (33) and the crushing roller (32) are matched to crush the construction waste; the method is characterized in that:

a screening mechanism (4) is arranged below the crushing roller (32) of the machine body (1);

screening mechanism (4) are including setting up locating rack (41) in organism (1), are provided with first screen cloth (44) and second screen cloth (45) in locating rack (41), and first screen cloth (44) and second screen cloth (45) are the magnetic screen cloth, and first screen cloth (44) are located the top of second screen cloth (45), and the mesh of first screen cloth (44) is greater than the mesh of second screen cloth (45).

2. A crawler-type mobile crushing station for the recovery of construction waste as claimed in claim 1, characterized in that: vibration springs (42) are fixedly arranged at four corners of the bottom of the positioning frame (41), one end, far away from the positioning frame (41), of each vibration spring (42) is fixedly arranged in the machine body (1), and one end of the positioning frame (41) is fixedly provided with a vibration motor (43).

3. A crawler-type mobile crushing station for the recovery of construction waste as claimed in claim 1, characterized in that: be provided with on locating rack (41) with first screen cloth (44) the same reserve screen cloth (46) of structure, sliding connection has support frame (412) on locating rack (41), first screen cloth (44) and reserve screen cloth (46) can be dismantled and connect on support frame (412), the bottom of support frame (412) has set firmly rack one (413), the one end that is located vibrating motor (43) of locating rack (41) has set firmly motor one (414), the output of motor one (414) has set firmly gear one (415), rack one (413) meshing of gear one (415) and support frame (412) bottom.

4. A crawler-type mobile crushing station for the recovery of construction waste as claimed in claim 3, characterized in that: a first step groove (4121) is formed in the supporting frame (412), and the first screen (44) and the first standby screen (46) are clamped in the first step groove (4121).

5. A crawler-type mobile crushing station for the recovery of construction waste as per claim 4, characterized in that: first spout (411) have been seted up near the position at top in support frame (412), and first spout (411) are towards the one end downward sloping of feed mechanism (2), and support frame (412) slide and connect in first spout (411), and organism (1) is located the below of feed mechanism (2) and is provided with transmission band (48), and the one end of transmission band (48) is connected with lifting machine (49), and the top of lifting machine (49) extends to in the cover body (31).

6. A crawler-type mobile crushing station for the recovery of construction waste as claimed in claim 1, characterized in that: the positioning frame (41) is provided with a second standby screen (47) which has the same structure as the second screen (45), the positioning frame (41) is connected with a fixed frame (417) in a sliding mode, the second screen (45) and the second standby screen (47) are detachably connected to the fixed frame (417), the bottom of the fixed frame (417) is fixedly provided with a second rack (418), the outer side wall of the positioning frame (41) is fixedly provided with a second motor (419), the output end of the second motor (419) is fixedly provided with a second gear (410), the second gear (410) is meshed with the second rack (418) at the bottom of the fixed frame (417), and the second gear (410) is meshed with the second rack (418).

7. A crawler-type mobile crushing station for the recovery of construction waste as per claim 6, characterized in that: a second step groove (4171) is formed in the fixing frame (417), and the second screen (45) and the standby screen are clamped in the second step groove (4171).

8. A crawler-type mobile crushing station for the recovery of construction waste as claimed in claim 1, characterized in that:

a buffer component (35) is arranged at one end of the cover body (31) close to the feeding mechanism (2);

buffer unit (35) are including buffer board (351), buffer board (351) are towards the one end downward sloping of crushing roller (32), four angles whereabouts of buffer board (351) all have set firmly guide post (352), guide post (352) vertical slip is connected in cover body (31), the cover is equipped with buffer spring (353) behind guide post (352) passing cover body (31), guide post (352) extend the tip of cover body (31) and have set firmly spacing dish (354), buffer spring (353)'s one end sets firmly on spacing dish (354), the other end sets firmly in the top of cover body (31).

9. A crawler-type mobile crushing station for the recovery of construction waste as claimed in claim 1, characterized in that:

a spraying assembly (36) is arranged above the crushing roller (32) on the cover body (31);

the spraying assembly (36) comprises a spraying pipe (361) fixedly arranged in the cover body (31), a plurality of spray heads (362) are uniformly and fixedly arranged on one side, facing the crushing roller (32), of the spraying pipe (361), and the top of the spraying pipe (361) is connected with an external water source.