Construction waste recycling and reproduction device

Abstract

The present application relates to the field of construction waste recycling, especially to a construction waste recycling and re-production device.The technical problem to be solved is that in the process of crushing concrete, part of the concrete is not crushed and still in block form, and it is difficult to completely separate the steel bars and the concrete by only relying on high-pressure water flow to flush the concrete block.The technical scheme of the present application is a construction waste recycling and re-production device, which comprises a crusher and a conveyor belt, etc.A conveyor belt is arranged below the crusher for conveying the steel bars with concrete after crushing.The present application realizes that the rust removal agent is sprayed to the surface of the steel bars adsorbed below the impact strip through the rust removal spray head, and at the same time, in the process of shaking the steel bars, the concrete shaken off will generate a lot of dust, the dust is wrapped by the rust removal agent and falls down, which plays a dust-settling role, avoids the leakage of dust to pollute the environment, and guarantees the health of the workers.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction waste recycling, and in particular to a construction waste recycling and re-production device. BACKGROUND

[0002] With the development of urban planning, a large amount of concrete is abandoned in urban demolition and engineering reconstruction, and needs to be recycled. In the process of recycling concrete, the steel bars in the concrete need to be separated. A resource separation and recycling device for waste reinforced concrete slab wall is disclosed in Chinese Patent No. CN202111173615.0, which uses a high-pressure nozzle to spray high-pressure water flow to flush the residual concrete blocks on the steel bars, ensuring the separation effect of the steel bars and the concrete blocks, without the need for manual cleaning. However, the crushing mechanism of the device cannot crush some of the concrete, which still remains in block form, and it is difficult to completely separate the steel bars and the concrete by relying solely on the flushing of the concrete blocks by high-pressure water flow. SUMMARY

[0003] In order to overcome the shortcomings of the crushing mechanism in the process of crushing concrete, some of the concrete is not crushed and still remains in block form, and it is difficult to completely separate the steel bars and the concrete by relying solely on the flushing of the concrete blocks by high-pressure water flow, the present application provides a construction waste recycling and re-production device.

[0004] The technical solution of the present application is a construction waste recycling and re-production device, which comprises a crusher and a conveyor belt. The crusher is provided with an inlet for feeding. The conveyor belt is arranged below the crusher for conveying the steel bars with crushed concrete. The device further comprises a de-ironer, an impact bar and a concrete re-crushing system. The de-ironer is arranged on the conveyor belt for driving the steel bars to move back and forth. The conveyor belt is provided with a mounting bracket. The impact bar is arranged on the mounting bracket for shaking the steel bars. The impact bar is located below the de-ironer. The concrete re-crushing system is arranged below the crusher for loosening the concrete remaining on the steel bars.

[0005] Optionally, the crusher is provided with a hopper for feeding. The hopper is provided with a screening port for screening concrete of different sizes.

[0006] Optionally, the device further comprises an elastic member. The crusher is fixedly connected with the elastic member for shaking the hopper. The elastic member is fixedly connected with the hopper.

[0007] Optionally, the concrete re-crushing system comprises an extrusion block. The extrusion block is arranged below the crusher and moves up and down to extrude the concrete remaining on the steel bars.

[0008] Optionally, the extrusion block is provided with a plurality of crushing blocks.

[0009] Optionally, the bottom of the extrusion block is higher than the conveyor belt.

[0010] Optionally, the limiting and straightening blocks are arranged on the mounting frame on the conveying belt and are in sliding connection with the conveying belt.

[0011] Optionally, the rust removal nozzles are arranged below the impact bars and are used for rust removal of the steel bars.

[0012] Optionally, the impact blocks are arranged on the lower side of the impact bars.

[0013] Optionally, the right side of each limiting and straightening block is arranged in a forward bending shape.

[0014] The present application has the advantages that the steel bar is quickly impacted against the impact bar during the upward movement of the steel bar attracted by the iron remover, the steel bar is shaken through the impact bar, the concrete remaining on the steel bar after crushing is shaken off, the steel bar is then moved forward by the iron remover, and the separation of the steel bar and the concrete is realized.

[0015] When the steel bar with the concrete after crushing is transmitted below the extruding block, the concrete remaining on the steel bar is extruded by the rapid up-and-down movement of the extruding block, so that the concrete attached to the steel bar is in a loose state, which is beneficial to the separation of the concrete during the steel bar screening.

[0016] When the steel bar with the concrete after crushing is transmitted below the extruding block, the concrete is adsorbed on the outer surface of the steel bar, and the large-particle concrete is gradually crushed into small-particle concrete that can pass through by the crushing block, so that the efficiency of the steel bar screening is improved.

[0017] During the transmission of the steel bar with the concrete after crushing from left to right, the steel bar is gradually straightened by the limiting and straightening blocks, which is beneficial to the recycling and reuse of the steel bar.

[0018] The steel bar and the concrete are limited by the adjacent limiting and straightening blocks and the extruding block, so that the concrete on the steel bar is scraped off at the gap between the steel bar and the adjacent limiting and straightening block during the rapid straightening of the steel bar, and then the steel bar is driven to reciprocate forward and backward by the iron remover, so that the scraping-off effect of the concrete on the steel bar is further improved.

[0019] During the upward movement of the steel bar attracted by the iron remover, the rust removal nozzles spray rust removal agent to the surface of the steel bar attracted below the impact bar, and a large amount of dust is generated from the shaken-off concrete during the shaking of the steel bar, so that the dust is wrapped by the rust removal agent and falls downward, which plays a dust-settling role, avoids the leakage of dust to pollute the environment, and protects the health of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the building waste recycling and reproduction device of the present application;

[0021] Figure 2 It is a first partial three-dimensional structure schematic diagram of the present application;

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the iron remover and impact bar combination of the present application;

[0023] Figure 4 It is a second partial three-dimensional structure schematic diagram of the present application;

[0024] Figure 5 It is a three-dimensional structure schematic diagram of the concrete re-crushing system of the present application;

[0025] Figure 6 It is a third partial three-dimensional structure schematic diagram of the present application;

[0026] Figure 7 It is a three-dimensional structure schematic diagram of the extrusion block, limiting straightening block and driving member combination of the present application;

[0027] Figure 8 It is a three-dimensional structure schematic diagram of the extrusion block and crushing block combination of the present application;

[0028] Figure 9 It is a three-dimensional structure schematic diagram of the extrusion block and limiting straightening block combination of the present application;

[0029] Figure 10 It is a three-dimensional structure schematic diagram of the impact bar, rust removal spray head and impact block combination of the present application;

[0030] Figure 11 It is a three-dimensional structure schematic diagram of the impact block and friction block combination of the present application;

[0031] Figure 12 It is a three-dimensional structure schematic diagram of the limiting straightening block of the present application.

[0032] In the above drawings: 1-crusher, 1001-feed hopper, 1002-screening port, 2-iron remover, 3-conveying belt, 3001-mounting frame, 4-impact bar, 101-elastic member, 201-extrusion block, 20101-crushing block, 202-limiting straightening block, 203-driving member, 301-rust removal spray head, 302-impact block, 30201-friction block. DETAILED DESCRIPTION

[0033] The following further describes the technical solution with reference to specific embodiments. It should be noted that terms such as "up," "down," "left," and "right" used herein to indicate directions refer only to the positions of the structures depicted in the corresponding drawings. Component numbers, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connected" and "coupled" in this application, unless otherwise specified, include both direct and indirect connections (couplings).

[0034] Example 1

[0035] like Figures 2-4 As shown, a construction waste recycling and reproducing device includes a crusher 1 and a conveyor belt 3; a feed port is provided on the crusher 1; and a conveyor belt 3 is provided below the crusher 1;

[0036] It also includes an iron remover 2, an impact bar 4 and a concrete re-crushing system; an iron remover 2 is provided on the conveyor belt 3; when the steel bars with concrete after crushing are transmitted to the bottom of the iron remover 2, the iron remover 2 attracts the steel bars to move upward and adsorbs them on the iron remover 2, so that the steel bars move from front to back following the iron remover 2, thereby realizing the screening of the steel bars; a mounting bracket 3001 is provided on the conveyor belt 3; an impact bar 4 is provided on the mounting bracket 3001, and the impact bar 4 is located below the iron remover 2; in the process of the steel bars being attracted by the iron remover 2 to move upward, the steel bars quickly hit the impact bar 4, and the impact bar 4 causes the steel bars to shake, and the concrete remaining on the steel bars after crushing is shaken off, and then the steel bars are driven from front to back by the iron remover 2 to realize the separation of the steel bars and the concrete; a concrete re-crushing system is provided below the crusher 1; through the concrete re-crushing system, the concrete remaining on the steel bars is squeezed to make it loose, which is conducive to the separation of the concrete during the steel bar screening and shaking process, thereby improving the efficiency of steel bar screening.

[0037] The crusher 1 is provided with a feed hopper 1001; the feed hopper 1001 is provided with a screening port 1002; when the feed hopper 1001 is fed, the size of the concrete is screened through the screening port 1002, so that small particles of concrete directly pass through the screening port 1002 and fall onto the conveyor belt 3, and large particles of concrete enter the crusher 1 for crushing, thereby realizing the screening of the size of the concrete.

[0038] It also includes an elastic member 101; the elastic member 101 is fixedly connected to the crusher 1, and the elastic member 101 is a spring; the elastic member 101 is fixedly connected to the feed hopper 1001; when the feed hopper 1001 is feeding, concrete directly falls into the feed hopper 1001, and the elastic member 101 causes the feed hopper 1001 to vibrate, causing the concrete to be turned over in the feed hopper 1001, thereby improving the effect of screening the size of the concrete and enhancing the quality of concrete recovery.

[0039] Example 2

[0040] On the basis of embodiment 1, as shown in Figures 5-9 The concrete crushing system includes a pressing block 201; the pressing block 201 is arranged below the crusher 1; when the steel bars with concrete after crushing are transmitted to below the pressing block 201 by the conveying belt 3, the residual concrete on the steel bars is pressed by the pressing block 201 moving up and down quickly, so that the concrete attached to the steel bars is in loose state, which is beneficial to the separation of the concrete in the process of steel bar screening.

[0041] The pressing block 201 is provided with a plurality of crushing blocks 20101; when the steel bars with concrete after crushing are transmitted to below the pressing block 201, the concrete is adsorbed on the outer surface of the steel bars, and the large-particle concrete is gradually crushed into small-particle concrete which can pass below the pressing block 201 by the crushing blocks 20101, so that the efficiency of steel bar screening is improved.

[0042] The bottom of the pressing block 201 is higher than the conveying belt 3; when the steel bars with concrete after crushing are transmitted to below the pressing block 201, the large-particle concrete remaining on the steel bars is limited to pass smoothly by the pressing block 201, and then the large-particle concrete is gradually crushed into small-particle concrete which can pass by the crushing blocks 20101, so that the efficiency of steel bar screening is improved.

[0043] Further comprising a limiting straightening block 202; a plurality of limiting straightening blocks 202 are fixedly connected on the mounting frame 3001 on the conveying belt 3, and the limiting straightening blocks 202 are slidingly connected with the conveying belt 3; in the process of the steel bars with concrete after crushing being transmitted from left to right, one end of the steel bars falls into the gap between the adjacent limiting straightening blocks 202 by the limitation of the pressing block 201; in the process of the steel bars continuing to be transmitted, the steel bars are gradually straightened by the limiting straightening blocks 202, and the steel bars are quickly moved upward by the iron remover 2, so that the steel bars are quickly straightened in the process of quickly passing below the pressing block 201, the efficiency of steel bar straightening is improved, which is beneficial to the recycling and reuse of the steel bars; and then the steel bars and the concrete are limited by the adjacent limiting straightening blocks 202 and the pressing block 201, so that the steel bars rub in the gap between the adjacent limiting straightening blocks 202 in the process of being quickly straightened, the concrete on the steel bars is scraped off by the limiting straightening blocks 202, and then the steel bars are reciprocally swung forward and backward by the iron remover 2, so that the scraping-off effect of the concrete on the steel bars is further improved, and the efficiency of steel bar screening is improved.

[0044] Further comprising a driving member 203; the driving member 203 is an electric push rod, and the output end of the driving member 203 is fixedly connected with the pressing block 201; the pressing block 201 is driven by the driving member 203 to move up and down quickly, so that the residual concrete on the steel bars is pressed, the concrete attached to the steel bars is in loose state, which is beneficial to the separation of the concrete in the process of steel bar screening, and the efficiency of steel bar screening is improved.

[0045] Embodiment 3

[0046] On the basis of embodiments 1 and 2, as shown in Figure 1 and Figures 10-12 The rust removal spray head 301 is further included; a plurality of rust removal spray heads 301 are installed below the impact strip 4, and each rust removal spray head 301 faces the impact strip 4; in the process of the steel bar being adsorbed upward by the de-ironer 2, the rust removal spray head 301 sprays rust removal agent to the steel bar adsorbed below the impact strip 4, and in the process of the steel bar being shaken, a large amount of dust is generated by the shaken concrete, the dust is wrapped by the rust removal agent and falls downward by spraying the rust removal agent through the rust removal spray head 301, which plays a role in dust reduction, avoids dust leakage to pollute the environment, and protects the health of the staff.

[0047] The impact block 302 is further included; a plurality of impact blocks 302 are fixed to the lower rear part of the impact strip 4; a plurality of friction blocks 30201 are arranged on each impact block 302; in the process of the steel bar moving from front to back below the impact strip 4, the impact strip 4 slows down the movement speed of the steel bar, the steel bar rotates along the surface of the impact block 302, the rust removal agent uniformly covers the outer surface of the steel bar, the rust removal effect is enhanced, the steel bar is shaken up and down along the surface of the impact block 302, and then the surface of the steel bar is rubbed by the friction block 30201, the rust removal effect on the surface of the steel bar is enhanced, the rust removal agent is sprayed on the surface of the impact block 302 by the rust removal spray head 301 arranged towards the impact strip 4, the surface of the steel bar contacts the rust removal agent in the process of the steel bar rotating along the surface of the impact block 302, and the rust removal effect on the surface of the steel bar is further enhanced.

[0048] With reference to the view from top to bottom, the right side of each limiting straightening block 202 is arranged in a forward bending shape; in the process of the steel bar being adsorbed on the de-ironer 2 and being transmitted from front to back, the orientation of the steel bar in the straightening process is changed by the right side of the limiting straightening block 202 in a forward bending shape, so that the steel bar moves to the lower front part of the impact strip 4; when the steel bar is stuck at the frontmost impact block 302 and cannot continue to move backward, the steel bar adsorbed at the lower front part of the impact strip 4 is impacted to ensure the screening effect of the steel bar.

[0049] Although the present application is described in detail with reference to the above embodiments, it is obvious to those skilled in the art from the present disclosure that various changes or modifications can be made to the present application without departing from the principles and spirit of the application defined in the claims, and the detailed description of the embodiments of the present disclosure is only used for explanation, not for limitation of the present application, and the protection scope is defined by the content of the claims.

Claims

1. A construction waste recycling and re-production device, comprising a crusher (1) and a conveyor belt (3); the crusher (1) is provided with a feeding port for feeding; the crusher (1) is provided below with a conveyor belt (3) for conveying the steel bars with the crushed concrete; characterized in that, It also includes a de-ironer (2), a striking bar (4) and a concrete re-breaking system; the conveying belt (3) is provided with the de-ironer (2) for driving the steel bar to move back and forth; the conveying belt (3) is provided with a mounting frame (3001); the mounting frame (3001) is provided with the striking bar (4) for shaking the steel bar, and the striking bar (4) is located below the de-ironer (2); the crusher (1) is provided below with the concrete re-breaking system for loosening the concrete remaining on the steel bar; The concrete re-breaking system comprises an extrusion block (201); the crusher (1) is provided below with the extrusion block (201) moving up and down for extruding the concrete remaining on the steel bar; The bottom of the extrusion block (201) is higher than the conveying belt (3).

2. The construction waste recycling and reproducing apparatus according to claim 1, wherein The crusher (1) is provided with a feeding hopper (1001) for feeding; the feeding hopper (1001) is provided with a screening port (1002) for screening concrete of different volumes.

3. The construction waste recycling and reproducing apparatus according to claim 2, wherein It also comprises an elastic member (101); the crusher (1) is fixedly connected with the elastic member (101) for shaking the feeding hopper (1001); the elastic member (101) is fixedly connected with the feeding hopper (1001).

4. The construction waste recycling and reproducing apparatus according to claim 1, wherein The extrusion block (201) is provided with a plurality of breaking blocks (20101).

5. The construction waste recycling and reproducing apparatus according to claim 1, wherein It also comprises a limiting straightening block (202); the mounting frame (3001) on the conveying belt (3) is fixedly connected with a plurality of limiting straightening blocks (202), and the limiting straightening blocks (202) are slidingly connected with the conveying belt (3).

6. The construction waste recycling and reproducing apparatus according to claim 1, wherein It also comprises a rust removal nozzle (301); a plurality of rust removal nozzles (301) for rust removal of the steel bar are installed below the striking bar (4), and each rust removal nozzle (301) faces the striking bar (4).

7. The construction waste recycling and reproducing apparatus according to claim 6, wherein It also comprises a striking block (302); a plurality of striking blocks (302) are fixedly connected to the lower rear part of the striking bar (4); each striking block (302) is provided with a plurality of friction blocks (30201).

8. The construction waste recycling and reproducing apparatus according to claim 5, wherein With the upper-to-lower view as the reference, each limiting straightening block (202) is provided with a forward bending shape on the right side.

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