Building recycled aggregate processing device with multi-stage crushing treatment

Abstract

The building recycled aggregate processing device with the multi-stage crushing treatment function comprises a crushing box body, a feeding hopper is fixedly installed at the top of the crushing box body, a grinding machine is arranged in the crushing box body, a screening and crushing mechanism and a striking and vibrating mechanism are arranged at the bottom of the grinding machine, and the screening and crushing mechanism comprises a collecting hopper arranged at the bottom of the grinding machine; the collecting hopper is fixedly mounted on the inner wall of the grinding box body; a screening plate is arranged at the bottom of the collecting hopper; after building aggregate enters the crusher for crushing treatment, the crushed aggregate falls onto the screening plates with different spacing widths, that is, the aggregate is screened by the screening plates into a state of being classified according to different sizes of the aggregate, that is, the aggregate with different crushing degrees enters respective crushing areas respectively; and large aggregates are sent back again for secondary crushing, so that crushing of the aggregates is more refined and efficient, and tedious processing of the building recycled aggregates is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of construction aggregate recycling, and more specifically, to a construction recycled aggregate processing device with multi-stage crushing treatment. Background Art

[0002] Concrete aggregate refers to granular loose materials that play a skeletal or filling role in concrete, including natural sand, natural pebbles, artificial sand, crushed stones, etc. It is an important component of concrete, which can enhance the strength, stability and durability of concrete. The particle size, gradation, shape, surface characteristics, etc. will have an important impact on the performance of concrete. Different types and specifications of aggregates are suitable for different concrete application scenarios and requirements.

[0003] For example, Patent CN118634968A discloses a device for removing impurities from concrete aggregates prepared from construction waste. It further crushes the aggregates by rolling, reduces the number of large-sized aggregates, makes the sizes of the crushed aggregates closer, and then collects and transports the metal in the aggregates to the outside of the impurity removal device for convenient metal recycling, achieving the purpose of impurity removal when preparing aggregates from construction waste.

[0004] However, although the above patent document has the function of crushing construction aggregates, it only has a single multi-stage crushing structure and does not have a structure that classifies first and then separately processes construction aggregates in different states. As a result, when re-crushing the crushed construction aggregates, the crushed aggregates with different size states will be processed together, but the aggregates that have reached the crushing requirements will still be processed synchronously. This not only causes waste of resources and congestion in the grinding space, but also cannot achieve the effect of separately crushing aggregates with different degrees of crushing, making the processing of construction recycled aggregates cumbersome and difficult to meet the high-efficiency requirements. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a construction recycled aggregate processing device with multi-stage crushing treatment to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A construction recycled aggregate processing device with multi-stage crushing treatment, including a crushing box body, a feeding hopper is fixedly installed at the top of the crushing box body, a grinding wheel is arranged inside the crushing box body, and a screening and crushing mechanism and a shock excitation mechanism are arranged at the bottom of the grinding wheel;

[0007] The screening and crushing mechanism includes a collecting hopper arranged at the bottom of the grinding machine. The collecting hopper is fixedly installed on the inner wall of the crushing box body. A screening plate is provided at the bottom of the collecting hopper. The screening plate is fixedly installed on the inner wall of the crushing box body. The screening plate is arranged obliquely downward. One side of the screening plate extends out of the outer wall of the crushing box body. A plurality of screening grids are formed at the top of the screening plate. The shapes of the plurality of screening grids are triangular.

[0008] In a preferred embodiment, a tipping hopper is provided at the bottom of the screening plate. The tipping hopper is fixedly installed at the bottom of the crushing box body. A fine grinding wheel is arranged at the bottom of the tipping hopper. A transfer bin is provided at the bottom of one side of the screening plate. The transfer bin is fixedly installed on the inner wall of the tipping hopper. The bottom of the transfer bin communicates with the inside of the tipping hopper. A medium grinding wheel is arranged at the bottom of the transfer bin.

[0009] In a preferred embodiment, the vibration mechanism includes a support bracket fixedly installed on the outer wall of the crushing box body. The support bracket is arranged vertically. A motor is fixedly installed on one side of the support bracket. A rotating rod is arranged on one side of the motor. The rotating rod is rotatably installed on the inner wall of the support bracket. The rotating rod is arranged horizontally.

[0010] In a preferred embodiment, reciprocating thread grooves are formed on the outer walls of both sides of the rotating rod. The two reciprocating thread grooves are symmetrically arranged. Push top plates are threadedly connected to the outer walls of the two reciprocating thread grooves. The two push top plates are slidably installed on the outer wall of the support bracket.

[0011] In a preferred embodiment, belt rods are respectively arranged on one side of the two push top plates. The two belt rods are rotatably installed on the outer wall of the crushing box body. Limiting springs are fixedly installed on the outer walls of the two belt rods. The two limiting springs are fixedly installed on the outer wall of the crushing box body. Hammers are fixedly installed on one side of the two belt rods. The outer walls of the two hammers are in contact with the outer walls of both sides of the screening plate.

[0012] In a preferred embodiment, a belt return mechanism is arranged at the top of one side of the screening plate. The belt return mechanism includes a first belt pulley fixedly installed on the outer wall of the rotating rod. A synchronous belt is rotatably installed on the outer wall of the first belt pulley. The synchronous belt is arranged vertically. A second belt pulley is rotatably installed on one side of the synchronous belt. A support rotating shaft is fixedly installed on the inner wall of the second belt pulley. The support rotating shaft is rotatably installed on the outer wall of the support bracket.

[0013] In a preferred embodiment, a plurality of same pulling plates are fixedly installed on the outer wall of the synchronous belt. The plurality of same pulling plates are arranged horizontally. A belt lifting rake is fixedly installed on one side of the plurality of same pulling plates. The belt lifting rake is arranged obliquely upward. The plurality of belt lifting rakes are arranged corresponding to the screening plate. The belt lifting rakes are arranged staggered with the plurality of screening grids.

[0014] In a preferred embodiment, a material scraping net is provided on one side of the belt rake, and the material scraping net is fixedly installed on the inner wall of the feeding hopper. The material scraping net is arranged obliquely downward, and the material scraping net and the belt rake are arranged staggeredly.

[0015] Technical effects and advantages of the present invention:

[0016] The present invention is realized by the cooperation of a screening and crushing mechanism and a vibration exciting mechanism. After the construction aggregate enters the crusher for crushing treatment, the crushed aggregate falls onto the screening plates with different spacing widths. The aggregate is screened by the screening plates into a state of being classified according to its own size, that is, the aggregates with different crushing degrees enter their respective crushing areas respectively, and the large aggregates are sent back by the belt return mechanism for secondary crushing, so that the crushing of the aggregate is more refined and efficient, and the processing of the building recycled aggregate is avoided from being cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a front view of the present invention.

[0019] Figure 3 It is a vertical sectional view of the present invention.

[0020] Figure 4 It is a partial horizontal sectional view of the screening and crushing mechanism in the present invention.

[0021] Figure 5 It is a partial sectional view of the vibration exciting mechanism in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the belt return mechanism in the present invention.

[0023] Figure 7 It is a partial sectional view of the belt return mechanism in the present invention.

[0024] Reference numerals are: 1, crushing box body; 2, feeding hopper; 3, grinding wheel; 4, screening and crushing mechanism; 41, aggregate hopper; 42, screening plate; 43, screening grid; 44, tipping hopper; 45, fine grinding wheel; 46, transfer bin; 47, medium grinding wheel; 5, vibration exciting mechanism; 51, support bracket; 52, motor; 53, rotating rod; 54, reciprocating thread groove; 55, pushing top plate; 56, belt rod; 57, limiting spring; 58, hammer; 6, belt return mechanism; 61, first belt pulley; 62, synchronous belt; 63, second belt pulley; 64, supporting rotating shaft; 65, same pulling plate; 66, belt rake; 67, material scraping net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] In view of the prior art, only a single multiple crushing structure is used, and there is no structure that classifies first and then separately processes construction aggregates in different states. As a result, when the crushed construction aggregates are crushed again, the construction aggregates in different sizes and states after crushing will be processed together, but the aggregates that have reached the crushing requirements will still be processed synchronously. This not only causes waste of resources and congestion in the grinding space, but also cannot perform separate crushing treatment according to aggregates with different degrees of crushing, making the processing of recycled construction aggregates cumbersome and difficult to meet the high-efficiency requirements. To solve this problem, the following technical solutions are proposed:

[0027] Referring to the attached Figures 1-7 drawings, a construction recycled aggregate processing device with multi-stage crushing treatment, as Figure 1 and Figure 2 shown, includes a crushing box body 1. A feed hopper 2 is fixedly installed at the top of the crushing box body 1. A grinding wheel 3 is arranged inside the crushing box body 1. A screening and crushing mechanism 4 and a shock excitation mechanism 5 are arranged at the bottom of the grinding wheel 3;

[0028] As Figure 2 , Figure 3 and Figure 4 shown, the screening and crushing mechanism 4 includes an aggregate hopper 41 arranged at the bottom of the grinding wheel 3. The aggregate hopper 41 is fixedly installed on the inner wall of the crushing box body 1. A screening plate 42 is provided at the bottom of the aggregate hopper 41. The screening plate 42 is fixedly installed on the inner wall of the crushing box body 1. The screening plate 42 is inclined downward. One side of the screening plate 42 extends out of the outer wall of the crushing box body 1. A plurality of screening grids 43 are opened at the top of the screening plate 42. The shapes of the plurality of screening grids 43 are triangular. The construction aggregates crushed by the grinding wheel 3 fall through the aggregate hopper 41 and land on the screening plate 42. At this time, the construction aggregates are screened through the plurality of screening grids 43 on the screening plate 42. The plurality of screening grids 43 are in a state of being high and small in the front and low and large in the back. Therefore, the construction aggregates with small shapes fall from the front, and those with large shapes fall from the back.

[0029] As Figure 3As shown in the figure, a discharge hopper 44 is provided at the bottom of the screening plate 42. The discharge hopper 44 is fixedly installed at the bottom of the crushing box body 1. A fine grinding wheel 45 is provided at the bottom of the discharge hopper 44. A transfer bin 46 is provided at the bottom on one side of the screening plate 42. The transfer bin 46 is fixedly installed on the inner wall of the discharge hopper 44. The bottom of the transfer bin 46 is communicated with the inside of the discharge hopper 44. A medium grinding wheel 47 is provided at the bottom of the transfer bin 46. Then, the small building aggregates fall into the fine grinding wheel 45 at the bottom of the discharge hopper 44 for fine grinding, while the large pieces fall into the medium grinding wheel 47 at the bottom of the transfer bin 46 for secondary processing and then fall into the fine grinding wheel 45 for fine grinding, so that the crushing of the aggregates is more refined and efficient, and the processing of building recycled aggregates is avoided from being cumbersome.

[0030] As Figure 2 and Figure 5 shown in the figure, the vibration impact mechanism 5 includes a support bracket 51 fixedly installed on the outer wall of the crushing box body 1. The support bracket 51 is arranged vertically. A motor 52 is fixedly installed on one side of the support bracket 51. A rotating rod 53 is provided on one side of the motor 52. The rotating rod 53 is rotatably installed on the inner wall of the support bracket 51. The rotating rod 53 is arranged horizontally. The motor 52 drives the rotating rod 53 to rotate.

[0031] As Figure 5 shown in the figure, reciprocating thread grooves 54 are formed on the outer walls on both sides of the rotating rod 53. The two reciprocating thread grooves 54 are symmetrically arranged. Push top plates 55 are threadedly connected to the outer walls of the two reciprocating thread grooves 54. The two push top plates 55 are slidably installed on the outer wall of the support bracket 51. That is, the rotating rod 53 drives the push top plates 55 to reciprocate through the reciprocating thread grooves 54 on both sides.

[0032] As Figure 5 shown in the figure, belt rods 56 are respectively provided on one side of the two push top plates 55. The two belt rods 56 are rotatably installed on the outer wall of the crushing box body 1. Limiting springs 57 are fixedly installed on the outer walls of the two belt rods 56. The two limiting springs 57 are fixedly installed on the outer wall of the crushing box body 1. Hammers 58 are fixedly installed on one side of the two belt rods 56. The outer walls of the two hammers 58 are in contact with the outer walls on both sides of the screening plate 42. When the push top plates 55 reciprocate, they push the belt rods 56 to deflect. Then, the belt rods 56 are first pushed out and stretched the limiting springs 57 so that the hammers 58 move synchronously. After the push top plates 55 are separated from the belt rods 56, the limiting springs 57 quickly pull the belt rods 56 so that the hammers 58 strike the outer wall of the screening plate 42, thereby accelerating the vibration of the screening plate 42 to filter the aggregates.

[0033] As Figure 6 and Figure 7As shown, a return belt mechanism 6 is provided at the top of one side of the screening plate 42. The return belt mechanism 6 includes a first pulley 61 fixedly installed on the outer wall of the rotating rod 53. A synchronous belt 62 is rotatably installed on the outer wall of the first pulley 61. The synchronous belt 62 is arranged vertically. A second pulley 63 is rotatably installed on one side of the synchronous belt 62. A support rotating shaft 64 is fixedly installed on the inner wall of the second pulley 63. The support rotating shaft 64 is rotatably installed on the outer wall of the support bracket 51. When the rotating rod 53 rotates, the rotating rod 53 drives the first pulley 61 to make the synchronous belt 62 and the second pulley 63 rotate synchronously, that is, the synchronous belt 62 rotates on the rotating rod 53 and the support rotating shaft 64.

[0034] As Figure 6 and Figure 7 shown, a plurality of same pulling plates 65 are fixedly installed on the outer wall of the synchronous belt 62. The plurality of same pulling plates 65 are arranged horizontally. A lifting belt rake 66 is fixedly installed on one side of the plurality of same pulling plates 65. The lifting belt rake 66 is arranged obliquely upward. The plurality of lifting belt rakes 66 are arranged corresponding to the screening plate 42. The lifting belt rake 66 is arranged staggeredly with the plurality of screening material grids 43. The synchronous belt 62 drives the plurality of same pulling plates 65 to make the lifting belt rakes 66 rotate synchronously. When the lifting belt rake 66 and the screening plate 42 are staggered from each other, the lifting belt rake 66 lifts the large-sized aggregates separated on the screening plate 42.

[0035] As Figure 6 and Figure 7 shown, a material scraping net 67 is provided on one side of the lifting belt rake 66. The material scraping net 67 is fixedly installed on the inner wall of the feeding hopper 2. The material scraping net 67 is arranged obliquely downward. The material scraping net 67 is arranged staggeredly with the lifting belt rake 66. When the lifting belt rake 66 drives the aggregates to move upward and approach the material scraping net 67 and is staggered from it, the material scraping net 67 squeezes the aggregates on the lifting belt rake 66 to scrape them off, thereby facilitating pulling the large-sized aggregates into the feeding hopper 2 for re-grinding.

[0036] In specific implementation, the construction aggregates crushed by the grinding wheel machine 3 fall through the aggregate hopper 41 onto the screening plate 42. At this time, the construction aggregates are screened through the plurality of screening material grids 43 on the screening plate 42. The plurality of screening material grids 43 are in a state of being high and small in the front and low and large in the back. Therefore, the construction aggregates with small shapes fall from the front, and those with large shapes fall from the back. Then, the small construction aggregates fall into the fine grinding wheel machine 45 at the bottom of the tipping hopper 44 for fine grinding, while the large-sized ones fall into the medium grinding wheel machine 47 at the bottom of the transfer bin 46 for secondary processing and then fall into the fine grinding wheel machine 45 for fine grinding, thereby making the crushing of the aggregates more refined and efficient and avoiding the cumbersome processing of recycled construction aggregates;

[0037] The motor 52 drives the rotating rod 53 to rotate, that is, the rotating rod 53 drives the push plate 55 to move back and forth through the reciprocating thread grooves 54 on both sides. When the push plate 55 moves back and forth, it pushes the belt rod 56 to deflect, and the belt rod 56 is first squeezed out and stretched to stretch the limit spring 57 so that the hammer 58 moves synchronously, and then after the push plate 55 is separated from the belt rod 56, the limit spring 57 quickly pulls the belt rod 56 so that the hammer 58 hits the outer wall of the sub-screen plate 42, so that the sub-screen plate 42 vibrates to accelerate the filtering of aggregates;

[0038] At the same time, when the rotating rod 53 rotates, the rotating rod 53 drives the first pulley 61 to make the synchronous belt 62 and the second pulley 63 rotate synchronously, that is, the synchronous belt 62 rotates on the rotating rod 53 and the supporting shaft 64, and the synchronous belt 62 drives multiple pulling plates 65 to make the lifting rake 66 rotate synchronously. When the lifting rake 66 and the sub-screen plate 42 are staggered with each other, the lifting rake 66 picks up the large pieces of aggregate separated on the sub-screen plate 42. When the lifting rake 66 moves up with the aggregate and approaches the scraping net 67 and is staggered with it, the scraping net 67 squeezes the aggregate on the lifting rake 66 and scrapes it away, thereby facilitating the pulling of the large pieces of aggregate into the feed hopper 2 for further grinding.

[0039] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0040] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0041] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction recycled aggregate processing device with multi-stage crushing treatment, comprising a crushing box (1), characterized in that: A feed hopper (2) is fixedly mounted on the top of the crushing box (1), a milling machine (3) is arranged inside the crushing box (1), and a screening and crushing mechanism (4) and a vibrating mechanism (5) are arranged at the bottom of the milling machine (3); The screening and crushing mechanism (4) comprises a collecting hopper (41) arranged at the bottom of the mill (3), the collecting hopper (41) being fixedly mounted on the inner wall of the crushing box (1), a screening plate (42) being arranged at the bottom of the collecting hopper (41), the screening plate (42) being fixedly mounted on the inner wall of the crushing box (1), the screening plate (42) being arranged in an inclined downward manner, one side of the screening plate (42) extending out of the outer wall of the crushing box (1), a plurality of screening grids (43) being arranged at the top of the screening plate (42), the plurality of screening grids (43) being arranged in a triangular shape.

2. The construction recycled aggregate processing device with multi-stage crushing treatment according to claim 1 is characterized in that: A dump hopper (44) is provided at the bottom of the sub-screen plate (42), and the dump hopper (44) is fixedly mounted on the bottom of the crushing box (1). A fine grinding wheel (45) is provided at the bottom of the dump hopper (44). A transfer bin (46) is provided at the bottom of one side of the sub-screen plate (42), and the transfer bin (46) is fixedly mounted on the inner wall of the dump hopper (44). The bottom of the transfer bin (46) is communicated with the interior of the dump hopper (44), and a fine grinding wheel (47) is provided at the bottom of the transfer bin (46).

3. The construction recycled aggregate processing device with multi-stage crushing treatment according to claim 1 is characterized in that: The vibration mechanism (5) comprises a support bracket (51) fixedly mounted on the outer wall of the crushing box (1); the support bracket (51) is arranged in a vertical state; a motor (52) is fixedly mounted on one side of the support bracket (51); a rotating rod (53) is provided on one side of the motor (52); the rotating rod (53) is rotatably mounted on the inner wall of the support bracket (51); and the rotating rod (53) is arranged in a horizontal state.

4. The construction recycled aggregate processing device with multi-stage crushing treatment according to claim 3 is characterized in that: The outer walls of both sides of the rotating rod (53) are provided with reciprocating thread grooves (54), the two reciprocating thread grooves (54) are symmetrically arranged, the outer walls of the two reciprocating thread grooves (54) are threadedly connected with push plates (55), and the two push plates (55) are slidably mounted on the outer wall of the support bracket (51).

5. The construction recycled aggregate processing device with multi-stage crushing treatment according to claim 4 is characterized in that: One side of the two push plates (55) is respectively provided with a belt rod (56), and the two belt rods (56) are rotatably mounted on the outer wall of the crushing box (1), and the outer walls of the two belt rods (56) are fixedly mounted with a limit spring (57), and the two limit springs (57) are fixedly mounted on the outer wall of the crushing box (1), and one side of the two belt rods (56) is fixedly mounted with a hammer (58), and the outer walls of the two hammers (58) are in contact with the outer walls of the two sides of the sieve plate (42).

6. The construction recycled aggregate processing device with multi-stage crushing treatment according to claim 3 is characterized in that: A rewinding mechanism (6) is provided at the top of one side of the sub-screen plate (42), and the rewinding mechanism (6) comprises a first pulley (61) fixedly mounted on the outer wall of the rotating rod (53), a synchronous belt (62) is rotatably mounted on the outer wall of the first pulley (61), and the synchronous belt (62) is arranged in a vertical state, a second pulley (63) is rotatably mounted on one side of the synchronous belt (62), and a supporting shaft (64) is fixedly mounted on the inner wall of the second pulley (63), and the supporting shaft (64) is rotatably mounted on the outer wall of the support bracket (51).

7. The construction recycled aggregate processing device with multi-stage crushing treatment according to claim 6, characterized in that: A plurality of pull plates (65) are fixedly mounted on the outer wall of the synchronous belt (62), and the plurality of pull plates (65) are arranged in a horizontal state. A belt lifting rake (66) is fixedly mounted on one side of the plurality of pull plates (65), and the belt lifting rake (66) is arranged obliquely upward. The plurality of belt lifting rakes (66) and the screening plates (42) are arranged corresponding to each other, and the belt lifting rake (66) and the plurality of screening grids (43) are arranged staggered with each other.

8. The construction recycled aggregate processing device with multi-stage crushing treatment according to claim 7, characterized in that: A scraping net (67) is provided on one side of the lifting belt rake (66). The scraping net (67) is fixedly installed on the inner wall of the feed hopper (2). The scraping net (67) is arranged to be inclined downward. The scraping net (67) and the lifting belt rake (66) are arranged to be staggered with each other.

Images