Crushing device for building material processing

Abstract

The invention discloses a crushing device for building material processing, relates to the field of building material processing, and solves the problem that a building material contains a large amount of metal materials easily due to an existing crushing device. The crushing device comprises a device shell and a crushing box fixedly installed at the top of the device shell, and a crushing roller set is installed on the inner side of the crushing box; a feeding hopper is fixedly installed on the top of the smashing box, and a material guiding base located in the front of the smashing box is fixedly installed on the inner side of the device shell. The material screening mechanism is used for screening materials entering the device shell, and the material screening mechanism is installed on the inner side of the device shell; through the material screening mechanism, after building materials are smashed through the smashing roller set, metal materials in the smashed materials can be adsorbed, stone can be discharged from the bottom of the device shell, a worker can recycle the stone, the metal materials in the smashed materials can be conveniently and rapidly screened out, the effect of rapid material screening is achieved, and the building materials can be conveniently recycled.

Description

Technical Field

[0001] The invention relates to the field of building material processing, in particular to a crushing device for building material processing. Background Art

[0002] Waste construction materials refer to various wastes generated during the construction, decoration, demolition and other processes, mainly including slag, waste mortar, concrete blocks, waste plastics, waste metals, waste bamboo and wood, etc. These wastes are generated during the construction process. If they are not properly handled, they will pollute the environment and occupy a large amount of land.

[0003] The crushing of building materials is the process of processing building waste, waste materials, etc. into powder. The crushed building materials can be used as recycled materials for construction, roads, foundations, etc. The existing Chinese public patent document: CN216936378U discloses a crushing and processing device for recycling waste building materials. Through multiple crushing columns fixedly connected to one side of the fixed plate, a rotating shaft fixedly connected to the output end of the second motor, multiple conical blocks fixedly connected to the support plate, a circular shaft fixedly connected to the output end of the third motor, and a first crushing roller and a second crushing roller meshing with each other, the building waste can be crushed very quickly with high crushing efficiency. Although the building materials can be crushed quickly, the waste building materials contain metal materials such as rivets and steel bars. If the crushed building materials are directly recycled, the metal materials inside the building materials will affect the mixing of materials in the later stage and affect reuse. Summary of the invention

[0004] The object of the present invention is to provide a crushing device for building material processing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A crushing device for processing building materials, comprising: a device housing and a crushing box fixedly installed on the top of the device housing, a crushing roller group installed on the inner side of the crushing box, an upper hopper fixedly installed on the top of the crushing box, used to feed building materials into the crushing box, and crush the building materials through the crushing roller group, and a material guide seat located in the square of the crushing box is fixedly installed on the inner side of the device housing; it also includes: a screening mechanism for screening materials entering the device housing, the screening mechanism is installed on the inner side of the device housing; a crushing mechanism for secondary crushing of materials crushed by the crushing roller group, the crushing mechanism is installed on the top of the material guide seat; a collecting mechanism for collecting metal materials crushed by the crushing roller group, the collecting mechanism is installed on both sides of the device housing.

[0007] Preferably, the screening mechanism includes two mounting plates symmetrically fixedly mounted on the inner side of the device shell, the mounting plates are in an inclined structure, the top of the material guide seat is two symmetrically distributed inclined surface structures, so that the material guide seat guides the crushed fragments to the top of the two mounting plates, rollers are rotatably mounted on both ends of the mounting plates, a conveyor belt is rotatably mounted between the two rollers, and the rotating rollers can drive the conveyor belt to rotate and move, a plurality of equally distributed fixed plates are fixedly mounted on the outer side of the conveyor belt, a plurality of equally distributed mounting posts are fixedly mounted on the surface of the fixed plates, a magnet sleeve is fixedly mounted on the outer side of the mounting post, which can adsorb metal materials in the fragments, and the device shell Aggregate boxes are fixedly installed on both sides, one end of the mounting plate extends to the interior of the aggregate box, so that the conveyor belt can deliver metal fragments into the aggregate box, a rotating rod is fixedly installed on the inner side of the roller, and a motor is fixedly installed on the outer side of the aggregate box located on the right side of the device casing. Starting the motor can drive the roller to rotate through the corresponding rotating rod, and the output end of the motor is fixedly connected to one end of the adjacent rotating rod. Gears are fixedly installed on both ends of the two rotating rods located directly below the material guide seat, and the gears are located on the outer side of the device casing. The two adjacent gears mesh with each other to realize the opposite rotational movement of the two conveyor belts, and a filter plate is fixedly installed on the inner side of the aggregate box.

[0008] Preferably, the crushing mechanism includes two positioning plates symmetrically fixedly installed on the top inner wall of the device shell, a baffle is slidably installed on the outer side of the positioning plate, a pressure plate is fixedly installed on the top of the baffle, and matching crushing bars are fixedly installed on the bottom of the pressure plate and the inclined surface of the material guide seat, so that when the pressure plate moves downward, the crushing bar can achieve secondary crushing of the crushed material, and a pull rod slidingly extending to the outside of the device shell is fixedly installed on the top of the pressure plate, and a sliding groove for the pull rod to limit the sliding of the pull rod is opened on the outside of the device shell. A U-shaped seat is provided below both ends of the rod, and the U-shaped seat is fixedly installed on the outer side of the device shell, and a turntable is rotatably installed on the inner side of the U-shaped seat, and a connecting rod is rotatably installed between the outer side of the turntable and the pull rod, and one end of the connecting rod deviates from the center of the turntable, so that when the turntable rotates, it can drive the pull rod to move back and forth up and down along the slide groove outside the device shell through the connecting rod, and a synchronous belt is rotatably installed between the side of the turntable away from the connecting rod and the adjacent rotating rod, so that when the rotating rod rotates, it can drive the turntable to rotate synchronously through the synchronous belt.

[0009] Preferably, the material receiving mechanism includes a mounting roller rotatably mounted on the inner side of the material collecting box, the mounting roller is located below the conveyor belt, a synchronous belt 2 is rotatably mounted between one end of the mounting roller and the adjacent rotating rod, and when the rotating rod rotates, it can drive the mounting roller to rotate synchronously through the synchronous belt 2, a plurality of scraping brushes symmetrically distributed in the center are fixedly mounted on the outer side of the mounting roller, so as to scrape out smaller metal materials on the magnet sleeve, an inclined plate is fixedly mounted on the inner side of the material collecting box, a scraper is fixedly mounted on one end of the inclined plate close to the conveyor belt, and the scraper is close to the conveyor belt. One end is provided with an opening for the limiting sliding of the mounting column, so that the mounting column can pass through the scraper, and the metal material pushed by the mounting column can move to the top of the scraper. Two symmetrically distributed material guide plates are arranged on both sides of the mounting roller, and the material guide plates are fixedly installed on the inner side of the collection box. The top of the material guide plate is an arc structure, which is convenient for feeding smaller metal materials into the collection box. The top of the material guide plate on the right side of the mounting roller is connected to the inclined plate. Two scraper rods located on the outside of the mounting roller are fixedly installed on the inner side of the collection box, which is convenient for discharging the metal material on the scraper brush.

[0010] Preferably, the mounting posts on adjacent fixing plates are staggeredly distributed to facilitate adsorption of metal fragments.

[0011] Preferably, a triangular plate is fixedly mounted on the bottom of the material guide seat, and two inclined surfaces of the triangular plate are respectively parallel to the two mounting plates, so as to facilitate stone fragments to enter the interior of the device housing.

[0012] Preferably, a sealed sliding door is rotatably installed on the outer side of the collection box to facilitate taking out the metal materials in the collection box.

[0013] Preferably, symmetrically distributed T-shaped rods are fixedly mounted on the top of the pressure plate, and the T-shaped rods slide through the top of the device housing to improve the stability of the movement of the pressure plate.

[0014] Preferably, a sleeve plate is slidably mounted on the outer side of the T-shaped rod, and the sleeve plate is fixedly mounted on the outer side of the positioning plate to provide guidance for the movement of the T-shaped rod.

[0015] Preferably, two symmetrically distributed positioning blocks are fixedly mounted on the inner side of the U-shaped seat, and the outer side of the turntable is in contact with the outer side of the positioning blocks, thereby improving the stability of the turntable's rotation.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention uses a screening mechanism to absorb metal materials in the crushed materials after the crushing roller group crushes the building materials, and the stone materials can be discharged from the bottom of the device shell, so that the staff can recycle the stone materials and quickly screen out the metal materials in the crushed materials, thereby achieving the effect of rapid screening and facilitating the recycling of building materials.

[0018] 2. The present invention uses a crushing mechanism to enable the pull rod to drive the pressure plate to move up and down reciprocatingly during the rotation of the rotating rod. The crushing bar at the bottom of the pressure plate cooperates with the crushing bar on the material guide seat to repeatedly squeeze the crushed materials processed by the crushing roller group, which is convenient for separating the stone and metal in the crushed materials and ensuring the adsorption of the metal material by the magnet sleeve, thereby achieving the effect of improving the screening efficiency.

[0019] 3. The present invention uses a material collecting mechanism to scrape out the metal material adsorbed on the magnet sleeve when the conveyor belt delivers the metal material into the collecting box, and rolls the outer side of the magnet sleeve to facilitate the rapid collection of the metal material, thereby achieving the effect of rapid cleaning and collection of the metal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the crushing box and the aggregate box in the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the material guide seat and the mounting plate in the present invention;

[0023] Figure 4 It is a schematic diagram of the conveyor belt and inclined plate structure in the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle A area;

[0025] Figure 6 It is a schematic diagram of the structure of the scraper and the guide plate in the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the pressing plate and the crushing strip in the present invention;

[0027] Figure 8 It is a schematic diagram of the rotating disk and connecting rod structure in the present invention.

[0028] In the figure: 1. device housing; 2. crushing box; 3. crushing roller group; 4. upper hopper; 5. material guide seat; 6. mounting plate; 7. roller; 8. conveyor belt; 9. fixing plate; 10. mounting column; 11. magnet sleeve; 12. collecting box; 13. rotating rod; 14. motor; 15. gear; 16. positioning plate; 17. baffle; 18. pressing plate; 19. crushing bar; 20. pull rod; 21. U-shaped seat; 22. turntable; 23. connecting rod; 24. synchronous belt 1; 25. mounting roller; 26. synchronous belt 2; 27. scraper; 28. inclined plate; 29. ​​scraper; 30. material guide plate; 31. scraper rod; 32. triangular plate; 33. sealing sliding door; 34. T-shaped rod; 35. sleeve plate; 36. positioning block; 37. filter plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 8 The figure shows a crushing device for processing building materials, comprising a device housing 1 and a crushing box 2 fixedly installed on the top of the device housing 1, a crushing roller group 3 is installed on the inner side of the crushing box 2, an upper hopper 4 is fixedly installed on the top of the crushing box 2, and is used to feed building materials into the crushing box 2, and the building materials are crushed by the crushing roller group 3, and a material guide seat 5 located in the square of the crushing box 2 is fixedly installed on the inner side of the device housing 1; it also includes: a screening mechanism for screening the materials entering the device housing 1, and the screening mechanism is installed on the inner side of the device housing 1; a crushing mechanism for secondary crushing the materials crushed by the crushing roller group 3, and the crushing mechanism is installed on the top of the material guide seat 5; a collecting mechanism for collecting the metal materials crushed by the crushing roller group 3, and the collecting mechanism is installed on both sides of the device housing 1.

[0031] The screening mechanism includes two mounting plates 6 which are symmetrically fixedly mounted on the inner side of the device housing 1. The mounting plates 6 are of an inclined structure. The top of the material guide seat 5 is two symmetrically distributed inclined surface structures, so that the material guide seat 5 guides the crushed fragments to the top of the two mounting plates 6. Rollers 7 are rotatably mounted on both ends of the mounting plates 6. A conveyor belt 8 is rotatably mounted between the two rollers 7. The rotating rollers 7 can drive the conveyor belt 8 to rotate and move. A plurality of equally distributed fixed plates 9 are fixedly mounted on the outer side of the conveyor belt 8. A plurality of equally distributed mounting columns 10 are fixedly mounted on the surface of the fixed plates 9. A magnet sleeve 11 is fixedly mounted on the outer side of the mounting column 10, which can adsorb metal materials in the fragments. A collection box 12 is fixedly mounted on both sides of the device housing 1. One end of the roller 6 extends to the inside of the collecting box 12, so that the conveyor belt 8 can send the metal fragments into the collecting box 12, the inner side of the roller 7 is fixedly installed with a rotating rod 13, and the outer side of the collecting box 12 located on the right side of the device housing 1 is fixedly installed with a motor 14. The starting motor 14 can drive the roller 7 to rotate through the corresponding rotating rod 13. The output end of the motor 14 is fixedly connected to one end of the adjacent rotating rod 13. Gears 15 are fixedly installed at both ends of the two rotating rods 13 located directly below the material guide seat 5. The gears 15 are located on the outer side of the device housing 1. The two adjacent gears 15 are meshed with each other to realize the opposite rotation of the two conveyor belts 8. A filter plate 37 is fixedly installed on the inner side of the collecting box 12, which can catch metal materials and pass powdered stone materials;

[0032] The motor 14 can drive the conveyor belt 8 located on the right side of the device housing 1 to rotate through the adjacent rotating rod 13 and the roller 7. The rotating rod 13 at the left end of the conveyor belt 8 drives the rotating rod 13 on the other conveyor belt 8 to rotate through two gears 15, so that the two conveyor belts 8 make opposite rotational movements, and the movement speed of the conveyor belts 8 is relatively slow. The two inclined surfaces on the top of the material guide seat 5 can feed the crushed fragments onto the two conveyor belts 8, and the stone can fall downward along the inclined surfaces of the conveyor belts 8 to the bottom of the device housing 1. The conveyor belt 8 drives the mounting column 10 to move obliquely upward through the fixed plate 9. The magnet sleeve 11 on the mounting column 10 can adsorb the metal material in the fragments, and as the mounting column 10 moves, the metal material is fed into the collecting box 12 to achieve screening of the metal material in the fragments.

[0033] The crushing mechanism includes two positioning plates 16 symmetrically fixedly installed on the inner wall of the top of the device housing 1, a baffle 17 is slidably installed on the outer side of the positioning plate 16, a pressing plate 18 is fixedly installed on the top of the baffle 17, and matching crushing strips 19 are fixedly installed on the bottom of the pressing plate 18 and the inclined surface of the material guide seat 5, so that when the pressing plate 18 moves downward, the crushed material can be crushed twice by the crushing strips 19, and a pull rod 20 is fixedly installed on the top of the pressing plate 18 and extends to the outside of the device housing 1. A slide groove for the pull rod 20 to limit the sliding of the pull rod 20 is opened on the outside of the device housing 1, and both ends of the pull rod 20 are provided below A U-shaped seat 21 is provided, and the U-shaped seat 21 is fixedly installed on the outer side of the device housing 1. A turntable 22 is rotatably installed on the inner side of the U-shaped seat 21. A connecting rod 23 is rotatably installed between the outer side of the turntable 22 and the pull rod 20. One end of the connecting rod 23 deviates from the center of the turntable 22, so that when the turntable 22 rotates, it can drive the pull rod 20 to move up and down along the slide groove on the outer side of the device housing 1 through the connecting rod 23. A synchronous belt 24 is rotatably installed between the side of the turntable 22 away from the connecting rod 23 and the adjacent turn rod 13, so that when the turn rod 13 rotates, it can drive the turntable 22 to rotate synchronously through the synchronous belt 24;

[0034] The rotating rod 13 can drive the turntable 22 to rotate through a synchronous belt 24. By utilizing the distance between the circle of the turntable 22 and the connecting rod 23, the turntable 22 can pull the pull rod 20 to move up and down along the slide groove on the device housing 1 when rotating. The pull rod 20 drives the pressure plate 18 to move synchronously, so that the crushing strip 19 on the pressure plate 18 and the crushing strip 19 on the material guide seat 5 repeatedly squeeze the crushed materials, which is convenient for squeezing and crushing large pieces of crushed materials, quickly separating stone and metal materials, and facilitating the magnet sleeve 11 to directly adsorb metal materials, thereby achieving the effect of improving screening efficiency.

[0035] Working principle: First, the staff pours the building materials into the upper hopper 4, so that the crushing roller group 3 in the crushing box 2 crushes the building materials, and the resulting crushed materials fall on the guide seat 5 and contact the baffle 17 along the guide seat 5. At this time, the staff starts the motor 14, and the motor 14 can drive the conveyor belt 8 located on the right side of the device housing 1 to rotate through the adjacent rotating rod 13 and roller 7. The rotating rod 13 at the left end of the conveyor belt 8 drives the rotating rod 13 on the other conveyor belt 8 to rotate through two gears 15, so that the two conveyor belts 8 make opposite rotational movements, and the rotating rod 13 can drive the turntable 22 to rotate through the synchronous belt 1 24. By utilizing the distance between the circular turntable 22 and the connecting rod 23, the turntable 22 can pull the pull rod 20 to move up and down along the slide groove on the device housing 1 when rotating, and the pull rod 20 drives the pressing plate 18 to move synchronously. When the pressing plate 18 is away from the guide seat 5, the crushed materials can slide into the pressing plate 18 and the guide along the inclined surface of the guide seat 5. The crushing bar 19 on the pressing plate 18 and the crushing bar 19 on the material guide seat 5 squeeze the crushed material, and quickly crush the large pieces of crushed material into powder, which is convenient for separating the stone and metal materials in the crushed material, and when the pressing plate 18 is away from the material guide seat 5 again, the stone and metal materials fall onto the two conveyor belts 8. Due to the slow rotation speed of the conveyor belt 8 and the weight of the stone, the stone can fall downward along the inclined surface of the conveyor belt 8 to the bottom of the device housing 1, and the metal material contacts the magnet sleeve 11 on the mounting column 10, so that the magnet sleeve 11 adsorbs the metal material, and the conveyor belt 8 drives the mounting column 10 to move upward through the fixed plate 9, and the metal material is sent into the collecting box 12. The metal material can fall on the filter plate 37 of the collecting box 12, and the powdered stone passes through the filter plate 37 and enters the bottom of the collecting box 12, thereby realizing the screening of the metal material in the crushed material, thereby achieving the effect of rapid screening, which is convenient for the recycling of building materials.

[0036] Example 2: Please refer to Figure 3-Figure 6The present embodiment further explains the first embodiment. The material receiving mechanism shown in the figure includes a mounting roller 25 rotatably mounted on the inner side of the material collecting box 12. The mounting roller 25 is located below the conveyor belt 8. A synchronous belt 26 is rotatably mounted between one end of the mounting roller 25 and the adjacent rotating rod 13. When the rotating rod 13 rotates, it can drive the mounting roller 25 to rotate synchronously through the synchronous belt 26. A plurality of scraping brushes 27 symmetrically distributed in the center are fixedly mounted on the outer side of the mounting roller 25 to facilitate scraping out smaller metal materials on the magnet sleeve 11. An inclined plate 28 is fixedly mounted on the inner side of the material collecting box 12. A scraper 29 is fixedly mounted on one end of the inclined plate 28 close to the conveyor belt 8. The scraper 29 An opening is provided at one end close to the conveyor belt 8 for the mounting column 10 to limit its sliding movement, so that the mounting column 10 can pass through the scraper 29, and the metal material pushed by the mounting column 10 can move to the top of the scraper 29. Two symmetrically distributed material guide plates 30 are provided on both sides of the mounting roller 25. The material guide plates 30 are fixedly installed on the inner side of the collection box 12. The top of the material guide plate 30 is an arc-shaped structure, which is convenient for feeding smaller metal materials into the collection box 12. The top of the material guide plate 30 located on the right side of the mounting roller 25 is connected to the inclined plate 28. Two scraper rods 31 located on the outer side of the mounting roller 25 are fixedly installed on the inner side of the collection box 12, which is convenient for discharging the metal material on the scraper brush 27.

[0037] In this embodiment: when the motor 14 is running, it can drive the installation roller 25 to rotate through the rotating rod 13 and the synchronous belt 26, so that the installation roller 25 drives multiple scraping brushes 27 to move along the bottom of the conveyor belt 8, and the metal material remaining on the magnet sleeve 11 is sent between the two guide plates 30, so that the broken metal material falls into the collection box 12, and the conveyor belt 8 can be moved along the outer side of the scraper 29, so that the installation column 10 and the magnet sleeve 11 move along the opening on the scraper 29, and the larger metal material can stay on the scraper 29 and fall into the collection box 12 along the inclined surface of the inclined plate 28, which is convenient for the rapid collection of the metal material, thereby achieving the effect of rapid cleaning and collection of the metal material.

[0038] Example 3: Please refer to Figure 2-Figure 8, this embodiment further illustrates other embodiments. The mounting columns 10 on the adjacent fixed plates 9 shown in the figure are staggered, which is convenient for adsorbing metal fragments. A triangular plate 32 is fixedly installed at the bottom of the material guide seat 5. The two inclined surfaces of the triangular plate 32 are respectively parallel to the two mounting plates 6, which is convenient for stone fragments to enter the interior of the device housing 1. A sealed sliding door 33 is rotatably installed on the outer side of the collection box 12, which is convenient for taking out the metal material in the collection box 12. A symmetrically distributed T-shaped rod 34 is fixedly installed on the top of the pressure plate 18. The T-shaped rod 34 slides through the top of the device housing 1 to improve the stability of the movement of the pressure plate 18. A sleeve plate 35 is slidably installed on the outer side of the T-shaped rod 34. The sleeve plate 35 is fixedly installed on the outer side of the positioning plate 16 to provide guidance for the movement of the T-shaped rod 34. Two symmetrically distributed positioning blocks 36 are fixedly installed on the inner side of the U-shaped seat 21. The outer side of the turntable 22 contacts the outer side of the positioning block 36 to improve the stability of the rotation of the turntable 22.

[0039] In this embodiment: when the crushed materials enter the conveyor belt 8, the staggered installation columns 10 are convenient for catching the metal materials and for the magnet sleeve 11 to adsorb the smaller metal materials. The stones can roll downward between the inclined conveyor belt 8 and the triangular plate 32, so that the stones can be discharged from the bottom of the device housing 1. The staff can open the sealed sliding door 33 to take out the metal materials stored in the collecting box 12 for recycling and reuse. When the pressing plate 18 moves, it can drive the T-bar 34 to move along the inner side of the sleeve plate 35 and the top of the device housing 1, thereby improving the stability of the movement of the pressing plate 18. The turntable 22 can rotate along the inner side of the U-shaped seat 21 and the outer side of the two positioning blocks 36, thereby improving the stability of the rotation of the turntable 22.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crushing device for building material processing, characterized in that: include: A device housing (1) and a crushing box (2) fixedly mounted on the top of the device housing (1); a crushing roller group (3) is mounted on the inner side of the crushing box (2); an upper hopper (4) is fixedly mounted on the top of the crushing box (2); and a material guide seat (5) located in the square of the crushing box (2) is fixedly mounted on the inner side of the device housing (1); Also includes: A screening mechanism, used for screening materials entering the device housing (1), the screening mechanism being installed on the inner side of the device housing (1); A crushing mechanism, used for re-crushing the material crushed by the crushing roller group (3), the crushing mechanism being installed on the top of the material guide seat (5); A material collecting mechanism is used to collect the metal material crushed by the crushing roller group (3), and the material collecting mechanism is installed on both sides of the device housing (1).

2. A crushing device for building material processing according to claim 1, characterized in that: The screening mechanism comprises two mounting plates (6) symmetrically fixedly mounted on the inner side of the device housing (1), the mounting plates (6) being of an inclined structure, the top of the material guide seat (5) being of two symmetrically distributed inclined surface structures, rollers (7) being rotatably mounted on both ends of the mounting plates (6), a conveyor belt (8) being rotatably mounted between the two rollers (7), a plurality of equally spaced fixed plates (9) being fixedly mounted on the outer side of the conveyor belt (8), a plurality of equally spaced mounting posts (10) being fixedly mounted on the surface of the fixed plates (9), a magnet sleeve (11) being fixedly mounted on the outer side of the mounting posts (10), and a material collecting device having a plurality of fixedly mounted materials on both sides of the device housing (1). A box (12), one end of the mounting plate (6) extends to the interior of the material collecting box (12), a rotating rod (13) is fixedly mounted on the inner side of the roller (7), a motor (14) is fixedly mounted on the outer side of the material collecting box (12) located on the right side of the device housing (1), an output end of the motor (14) is fixedly connected to one end of an adjacent rotating rod (13), gears (15) are fixedly mounted on both ends of the two rotating rods (13) located directly below the material guiding seat (5), the gears (15) are located on the outer side of the device housing (1), and the two adjacent gears (15) are meshed with each other, and a filter plate (37) is fixedly mounted on the inner side of the material collecting box (12).

3. A crushing device for building material processing according to claim 2, characterized in that: The crushing mechanism comprises two positioning plates (16) symmetrically fixedly mounted on the inner wall of the top of the device housing (1), a baffle (17) is slidably mounted on the outer side of the positioning plate (16), a pressure plate (18) is fixedly mounted on the top of the baffle (17), matching crushing strips (19) are fixedly mounted on the bottom of the pressure plate (18) and the inclined surface of the material guide seat (5), a pull rod (20) is fixedly mounted on the top of the pressure plate (18) and extends slidably to the outside of the device housing (1), and a portion of the outer side of the device housing (1) is provided for the pull rod (20) to be moved. ) a limited sliding groove, U-shaped seats (21) are provided below both ends of the pull rod (20), the U-shaped seats (21) are fixedly installed on the outer side of the device housing (1), a turntable (22) is rotatably installed on the inner side of the U-shaped seat (21), a connecting rod (23) is rotatably installed between the outer side of the turntable (22) and the pull rod (20), one end of the connecting rod (23) deviates from the center of the turntable (22), and a synchronous belt (24) is rotatably installed between the side of the turntable (22) away from the connecting rod (23) and the adjacent turntable (13).

4. A crushing device for building material processing according to claim 3, characterized in that: The material receiving mechanism comprises a mounting roller (25) rotatably mounted on the inner side of the material collecting box (12), the mounting roller (25) being located below the conveyor belt (8), a synchronous belt 2 (26) being rotatably mounted between one end of the mounting roller (25) and the adjacent rotating rod (13), a plurality of scraping brushes (27) being fixedly mounted on the outer side of the mounting roller (25) and distributed symmetrically with respect to the center, an inclined plate (28) being fixedly mounted on the inner side of the material collecting box (12), a scraper (29) being fixedly mounted on one end of the inclined plate (28) close to the conveyor belt (8), and the scraper (29) 29) An opening is provided at one end close to the conveyor belt (8) for limiting the sliding movement of the mounting column (10), and two symmetrically distributed material guide plates (30) are provided on both sides of the mounting roller (25). The material guide plates (30) are fixedly mounted on the inner side of the material collecting box (12), and the top end of the material guide plate (30) is an arc-shaped structure. The top end of the material guide plate (30) located on the right side of the mounting roller (25) is connected to the inclined plate (28), and two scraper rods (31) located on the outer side of the mounting roller (25) are fixedly mounted on the inner side of the material collecting box (12).

5. A crushing device for building material processing according to claim 2, characterized in that: The mounting columns (10) on adjacent fixing plates (9) are distributed in a staggered manner.

6. A crushing device for building material processing according to claim 2, characterized in that: A triangular plate (32) is fixedly mounted on the bottom of the material guide seat (5), and two inclined surfaces of the triangular plate (32) are respectively parallel to the two mounting plates (6).

7. A crushing device for building material processing according to claim 2, characterized in that: A sealed sliding door (33) is rotatably mounted on the outer side of the material collecting box (12).

8. A crushing device for building material processing according to claim 3, characterized in that: A symmetrically distributed T-shaped rod (34) is fixedly mounted on the top of the pressure plate (18), and the T-shaped rod (34) slides through the top of the device housing (1).

9. A crushing device for building material processing according to claim 8, characterized in that: A sleeve plate (35) is slidably mounted on the outer side of the T-shaped rod (34), and the sleeve plate (35) is fixedly mounted on the outer side of the positioning plate (16).

10. A crushing device for building material processing according to claim 3, characterized in that: Two symmetrically distributed positioning blocks (36) are fixedly mounted on the inner side of the U-shaped seat (21), and the outer side of the rotating disk (22) is in contact with the outer side of the positioning blocks (36).

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