Concrete recycled raw material crushing device

Abstract

The invention relates to the technical field of crushing devices, in particular to a concrete recycling raw material crushing device which comprises a crushing machine body, a feeding hopper is fixedly communicated with the top of the crushing machine body, a discharging opening is formed in the bottom of the crushing machine body, and a crushing cylinder is rotationally connected into the crushing machine body; a crushing cavity is formed between the interior of the crusher body and the crushing cylinder, the section width of the crushing cavity is sequentially decreased from top to bottom, crushing protrusions are distributed on the inner wall of the crushing cavity and the exterior of the crushing cylinder, a motor is fixed to the rear end face of the crusher body, and an output shaft of the motor is fixedly connected with the rear end of the crushing cylinder. And a shaft is fixed at the front end of the crushing cylinder. According to the circulating water cooling structure designed for the inner walls of the crushing barrel and the crushing cavity, circulating flowing of cooling water can be achieved through reciprocating rotation of the crushing barrel by a certain angle, then water cooling is conducted on the crushing barrel and the crushing cavity in the long-time working state, and damage caused by high-temperature operation of parts is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of crushing devices, and in particular to a concrete recycling raw material crushing device. Background Art

[0002] Concrete is one of the most important civil engineering materials in contemporary times. It is an artificial stone made of cementitious aggregate, water, and admixtures and additives added in a certain proportion, which is uniformly mixed, compacted, and hardened by curing. It is often used in construction. When a concrete mixing plant produces concrete, the wastewater and waste slurry in the mixing plant will be precipitated and dried to form a slurry cake, which will then be crushed into small particles by a crushing device and recycled as recycled aggregate; The utility model with the announcement number CN221733480U specifically discloses a concrete crushing device, which can produce a buffering effect on the concrete put in, reduce the damage to the device caused by the concrete falling, effectively improve the service life of the device, and can also filter the crushed concrete, separate the unbroken concrete from the crushed concrete, and ensure the quality of the collected raw materials after crushing; When crushing massive concrete blocks, the device will cause the crushing wheel to rub against the concrete blocks for a long time, causing high temperature of the crushing wheel and then metal fatigue, resulting in equipment damage and affecting the service life of the equipment.

[0003] Therefore, a concrete recycling raw material crushing device is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a concrete recycling raw material crushing device. The circulating water cooling structure designed for the inner wall of the crushing barrel and the crushing chamber in this application can realize the circulation of cooling water through the reciprocating rotation of the crushing barrel at a certain angle, and then cool the crushing barrel and the crushing chamber by water when they work for a long time, avoiding damage caused by high-temperature operation of components, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a concrete recycling raw material crushing device, comprising a crusher body, the top of the crusher body is connected and fixed with a feed hopper, the bottom of the crusher body is provided with a feed opening, the interior of the crusher body is rotatably connected with a crushing barrel, a crushing chamber is formed between the interior of the crusher body and the crushing barrel, the cross-sectional width of the crushing chamber decreases from top to bottom, crushing protrusions are distributed on the inner wall of the crushing chamber and the outside of the crushing barrel, a motor is fixed on the rear end surface of the crusher body, and the motor output shaft is fixedly connected to the rear end of the crushing barrel, a shaft is fixed on the front end of the crushing barrel, and the crushing barrel is rotatably connected to the inner wall of the crusher body through the shaft; Cooling chambers are symmetrically arranged inside the crusher main body near the inner wall of the crushing chamber, and connecting pipes are fixedly connected to the rear end of the crusher main body and the two crushing chambers; A serpentine cooling water channel is arranged inside the crushing cylinder, a driving member is arranged on the front end face of the crusher main body, and the driving member is in shaft transmission connection with the front end of the crushing cylinder.

[0006] Preferably, the driving member includes an end cover connected to the front end face of the crusher main body by screws, and a triangular center extrusion block is fixed near the upper side inside the end cover. The shaft extends into the end cover, and a collar is fixedly sleeved outside the shaft. Pressure plates are symmetrically fixed outside the collar, and a first sector-shaped airbag and a second sector-shaped airbag are respectively arranged above the two pressure plates.

[0007] Preferably, two sides of the first sector-shaped airbag and the second sector-shaped airbag are respectively fixed to the center extrusion block and the pressure plate, and connecting pipes are fixed to the rear end faces of the first sector-shaped airbag and the second sector-shaped airbag. The two connecting pipes are communicated with the two cooling chambers.

[0008] Preferably, both ends of the cooling water channel extend to the outer surface of the shaft, and two groups of connecting holes communicated with the cooling water channel are arranged inside the collar. The other ends of the two groups of connecting holes are respectively communicated with the first sector-shaped airbag and the second sector-shaped airbag.

[0009] Preferably, a second passive joint corresponding to and communicated with the first sector-shaped airbag and the second sector-shaped airbag is arranged on the front end face of the end cover.

[0010] Preferably, a first spare joint is fixed to the top of each of the first sector-shaped airbag and the second sector-shaped airbag, and an installation hole for installing the first spare joint is arranged at a position corresponding to the first spare joint on the surface of the end cover.

[0011] Preferably, water inlet channels are symmetrically arranged inside the feed hopper, and nozzles communicated with the water inlet channels are embedded at positions corresponding to the inner wall of the feed hopper and the crushing chamber.

[0012] Preferably, the inside of the crushing cylinder is designed with a hollow structure, and a cover plate is connected to the top of the crusher main body by screws.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The circulating water cooling structure designed for the crushing cylinder and the inner wall of the crushing chamber can realize the circulating flow of cooling water by rotating the crushing cylinder back and forth at a certain angle, thereby cooling the crushing cylinder and the crushing chamber by water cooling during long-term operation, and avoiding damage caused by high-temperature operation of components; 2. Another cooling structure is designed in this application, which is spray cooling. This method can replace circulating water cooling and is used for concrete crushing materials without drying requirements. Moreover, during operation, it can further reduce dust generated by concrete crushing to protect the working environment; 3. The detachable structure of the driving part and the crusher main body designed in this application facilitates the user to replace, maintain and install the internal structure. Moreover, in order to further ensure the cooling effect of the circulating water cooling, a built-in pressing plate can be used to install a semiconductor refrigeration sheet to further ensure the circulating water cooling effect. Description of the Drawings

[0014] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is the overall structure view of the present invention; Figure 2 It is the rear view of the overall structure of the present invention; Figure 3 It is the overall cross-sectional view of the present invention; Figure 4 It is the structure view of the crushing cylinder and the driving part of the present invention; Figure 5 It is the front view of the crushing cylinder and the driving part of the present invention; Figure 6 It is the cross-sectional view of the shaft and the collar of the present invention; Figure 7 It is the structure view of the cooling water channel of the present invention; Figure 8 It is the structure view of the spray cooling in Embodiment 2 of the present invention; Figure 9 It is the structure view of the first sector airbag and the second sector airbag of the present invention.

[0016] Description of the Reference Numerals: 1. Crusher main body; 2. Feed hopper; 3. Driving part; 4. Motor; 5. Discharge port; 6. Connecting pipe; 7. Cooling cavity; 8. Crushing cavity; 9. Crushing cylinder; 10. Cooling water channel; 11. End cover; 12. First sector airbag; 13. Second sector airbag; 14. Pressing plate; 15. Collar; 16. Spare joint one; 17. Connecting pipe orifice; 18. Passive joint two; 19. Connecting hole; 20. Water inlet channel; 21. Sprinkler head; 22. Mounting hole; 23. Central extrusion block. Detailed Embodiments

[0017] 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.

[0018] Please refer to Figures 1 to 9 , the technical solution provided by the present invention: Embodiment 1: A crushing device for concrete recycling raw materials, including a crusher main body 1. A feed hopper 2 is fixedly connected and communicated at the top of the crusher main body 1. A discharge port 5 is opened at the bottom of the crusher main body 1. A crushing cylinder 9 is rotatably connected inside the crusher main body 1. A crushing chamber 8 is formed between the inside of the crusher main body 1 and the crushing cylinder 9. The cross-sectional width of the crushing chamber 8 gradually decreases from top to bottom. Crushing protrusions are distributed on the inner wall of the crushing chamber 8 and the outer part of the crushing cylinder 9. A motor 4 is fixed to the rear end face of the crusher main body 1, and the output shaft of the motor 4 is fixedly connected to the rear end of the crushing cylinder 9. A shaft is fixed to the front end of the crushing cylinder 9, and the crushing cylinder 9 is rotatably connected to the inner wall of the crusher main body 1 through the shaft; Cooling chambers 7 are symmetrically opened at positions inside the crusher main body 1 close to the inner wall of the crushing chamber 8. The rear end of the crusher main body 1 is fixedly communicated with the two crushing chambers 8 through connecting pipes 6; A serpentine cooling water channel 10 is opened inside the crushing cylinder 9. A driving member 3 is arranged on the front end face of the crusher main body 1, and the driving member 3 is in transmission connection with the front end shaft of the crushing cylinder 9. The driving member 3 includes an end cover 11 connected to the front end face of the crusher main body 1 by screws. A triangular center pressing block 23 is fixed at a position close to the upper side inside the end cover 11. The shaft extends into the end cover 11, and a collar 15 is fixedly sleeved on the outside of the shaft. Pressing plates 14 are symmetrically fixed on the outside of the collar 15. A sector airbag one 12 and a sector airbag two 13 are respectively arranged on the upper sides of the two pressing plates 14. The two sides of the sector airbag one 12 and the sector airbag two 13 are respectively fixed to the center pressing block 23 and the pressing plates 14. The rear end faces of the sector airbag one 12 and the sector airbag two 13 are fixed with connecting pipes 6, and the two connecting pipes 6 are communicated with the two cooling chambers 7.

[0019] By adopting the above technical solution, during operation, cooling water is injected into the circulating water cooling system through the first spare joint 16, and then the first spare joint 16 is closed. The user controls the motor 4 to rotate forward and backward by 45 degrees through a controller connected to the motor 4 from the outside. At this time, the user feeds the block-shaped concrete raw materials into the crushing cavity 8 inside the crusher main body 1 through the feed hopper 2. The crushing cylinder 9 is driven by the motor 4 to rotate. The crushing protrusions on the outside of the crushing cylinder 9 and the crushing protrusions on the inner wall of the crushing cavity 8 grind and crush the block-shaped concrete raw materials. The crushing cavity 8 with a decreasing width can gradually crush the block-shaped concrete raw materials into granular form and finally discharge them downward through the discharge port 5 out of the crusher main body 1, and be recycled and processed by the recycling equipment; When the crushing cylinder 9 rotates, it drives the pressing plate 14 to rotate through the shaft and the collar 15, and cooperates with the central extrusion block 23 to respectively stretch and extrude the first sector-shaped airbag 12 and the second sector-shaped airbag 13 installed on both sides. For example, when the first sector-shaped airbag 12 is extruded, the cooling water inside flows through the connecting pipe 6 port to the cooling cavity 7 on the inner wall of the crushing cavity 8, driving the temperature generated by the grinding of the concrete block raw materials by the crushing wall, and then enters another cooling cavity 7 through the connecting pipe 6. Finally, the cooling water flows into the stretched second sector-shaped airbag 13 through the connecting pipe 6. When the motor 4 rotates in the reverse direction, the flow direction of the cooling water is opposite, and part of the cooling water will also enter the serpentine cooling water channel 10 opened in the crushing cylinder 9 through the connecting holes 19 connected to the first sector-shaped airbag 12 and the second sector-shaped airbag 13. Similarly, the circulating water cooling of the crushing cylinder 9 is realized. In order to further control the temperature of the cooling water, at this time, the user can also control the semiconductor refrigeration sheet installed in the pressing plate 14 to cool the cooling water entering the sector-shaped airbag.

[0020] Embodiment 2: Both ends of the cooling water channel 10 extend to the outer surface of the shaft. Two groups of connecting holes 19 communicating with the cooling water channel 10 are opened in the collar 15. The other ends of the two groups of connecting holes 19 communicate with the first sector-shaped airbag 12 and the second sector-shaped airbag 13 respectively. The front end face of the end cover 11 is provided with a second passive joint 18 corresponding to and communicating with the first sector-shaped airbag 12 and the second sector-shaped airbag 13. The top of both the first sector-shaped airbag 12 and the second sector-shaped airbag 13 is fixed with a first spare joint 16, and an installation hole 22 for installing the first spare joint 16 is opened at the corresponding position on the surface of the end cover 11. Water inlet channels 20 are symmetrically opened inside the feed hopper 2, and spray heads 21 communicating with the water inlet channels 20 are embedded at the corresponding positions of the inner wall of the feed hopper 2 and the crushing cavity 8.

[0021] By adopting the above technical solution, the purpose of the circulating water cooling used in Embodiment 1 is designed for some materials that have requirements for the water content of the crushed concrete raw materials. During the use process, there are still concrete particles that do not require water content processing. Therefore, the present application designs a spray cooling method for this requirement. During the specific use process, it replaces the circulating water cooling structure in Embodiment 1. During the installation stage, first, the user closes the connection port 6 and the connection hole 19. The passive joint two 18 is connected to an external water storage device. The spare joint one 16 is installed in the installation hole 22 and is communicated with the sector airbag one 12 and the sector airbag two 13. The other end of the spare joint one 16 is communicated with the upper two water inlets 20. Therefore, when the crushing cylinder 9 rotates subsequently and the shaft drives the pressing plate 14 to compress and stretch the sector airbag one 12 and the sector airbag two 13, water is sucked through the pipeline connected to the external water storage device and injected into the water inlet 20, and finally sprayed through the nozzle 21 to achieve spray cooling of the crushing chamber 8 and the crushing cylinder 9 and dust reduction of the crushed materials in the crushing chamber 8.

[0022] Specifically, the interior of the crushing cylinder 9 is designed with a hollow structure, and the top of the crusher main body 1 is screwed with a cover plate.

[0023] By adopting the above technical solution, it is convenient for the user to open the cover plate to maintain the internal components of the crusher main body 1.

[0024] Working principle: During operation, cooling water is injected into the circulating water cooling system through the spare joint one 16, and then the spare joint one 16 is closed. The user controls the motor 4 to rotate forward and backward by 45 degrees through a controller connected to the external motor 4. At this time, the user feeds the massive concrete raw materials into the crushing chamber 8 inside the crusher main body 1 through the feed hopper 2. The motor 4 drives the crushing cylinder 9 to rotate. The crushing protrusions on the outside of the crushing cylinder 9 and the crushing protrusions on the inner wall of the crushing chamber 8 grind and crush the massive concrete raw materials. The crushing chamber 8 with a gradually decreasing width can gradually crush the massive concrete raw materials into granular form and finally discharge them downward through the discharge port 5 out of the crusher main body 1 and be recycled and processed by the recycling equipment; When the crushing cylinder 9 rotates, it drives the pressing plate 14 to rotate through the shaft and the collar 15, and cooperates with the central extrusion block 23 to stretch and extrude the sector airbag one 12 and the sector airbag two 13 installed on both sides respectively. For example, when the sector airbag one 12 is extruded, the cooling water inside flows through the connecting pipe 6 port to the cooling cavity 7 on the inner wall of the crushing cavity 8, driving the temperature generated by the grinding of the concrete block raw materials by the crushing wall, and then enters another cooling cavity 7 through the connecting pipe 6. Finally, the cooling water flows into the stretched sector airbag two 13 through the connecting pipe 6. When the motor 4 rotates in the reverse direction, the flow direction of the cooling water is opposite, and part of the cooling water will also enter the serpentine cooling water channel 10 opened in the crushing cylinder 9 through the connecting holes 19 connected to the sector airbag one 12 and the sector airbag two 13. Similarly, the circulating water cooling of the crushing cylinder 9 is realized. In order to further control the temperature of the cooling water, at this time, the user can also cool the cooling water entering the sector airbag by controlling the semiconductor refrigeration sheet installed in the pressing plate 14; The purpose of the circulating water cooling used in Embodiment 1 is designed for some materials that have requirements for the moisture content of the crushed concrete raw materials. During the use process, there are still concrete particles that do not meet the moisture content requirements for processing. Therefore, the present application designs a spray cooling method for this requirement. In the specific use process, replacing the circulating water cooling structure of Embodiment 1, during the installation stage, first, the user closes the connecting pipe 6 port and the connecting hole 19. The passive joint two 18 is connected to an external water storage device, and the spare joint one 16 is installed in the installation hole 22 and is communicated with the sector airbag one 12 and the sector airbag two 13. The other end of the spare joint one 16 is communicated with the upper two water inlets 20. Therefore, during the subsequent rotation of the crushing cylinder 9, when the shaft drives the pressing plate 14 to compress and stretch the sector airbag one 12 and the sector airbag two 13, the water source is sucked through the pipeline connected to the external water storage device and injected into the water inlet 20 and finally sprayed through the nozzle 21, so as to realize the spray cooling of the crushing cavity 8 and the crushing cylinder 9 and the dust reduction of the materials crushed in the crushing cavity 8.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crushing device for concrete recycling raw materials, comprising a crusher main body (1), characterized in that: At the top of the crusher main body (1), a feed hopper (2) is fixedly connected in communication. At the bottom of the crusher main body (1), a discharge opening (5) is provided. Inside the crusher main body (1), a crushing cylinder (9) is rotatably connected. A crushing chamber (8) is formed between the inside of the crusher main body (1) and the crushing cylinder (9). The cross-sectional width of the crushing chamber (8) gradually decreases from top to bottom. Crushing protrusions are distributed on the inner wall of the crushing chamber (8) and the outer part of the crushing cylinder (9). At the rear end face of the crusher main body (1), a motor (4) is fixed, and the output shaft of the motor (4) is fixedly connected to the rear end of the crushing cylinder (9). A shaft is fixed at the front end of the crushing cylinder (9), and the crushing cylinder (9) is rotatably connected to the inner wall of the crusher main body (1) through the shaft; Cooling chambers (7) are symmetrically provided inside the crusher main body (1) near the inner wall of the crushing chamber (8). At the rear end of the crusher main body (1), connecting pipes (6) are fixedly connected to the two crushing chambers (8); A serpentine cooling water channel (10) is provided inside the crushing cylinder (9). A driving member (3) is provided on the front end face of the crusher main body (1), and the driving member (3) is in shaft transmission connection with the front end shaft of the crushing cylinder (9).

2. The concrete recycling raw material crushing device according to claim 1, characterized in that: The driving member (3) includes an end cover (11) connected to the front end face of the crusher main body (1) by screws. Inside the end cover (11), a triangular central extrusion block (23) is fixed near the upper side position. The shaft extends into the end cover (11), and a collar (15) is fixedly sleeved outside the shaft. Press plates (14) are symmetrically fixed outside the collar (15). On the upper sides of the two press plates (14), a sector-shaped airbag one (12) and a sector-shaped airbag two (13) are respectively provided.

3. The concrete recycling raw material crushing device according to claim 2, characterized in that: The two sides of the sector-shaped airbag one (12) and the sector-shaped airbag two (13) are respectively fixed to the central extrusion block (23) and the press plate (14). The rear end faces of the sector-shaped airbag one (12) and the sector-shaped airbag two (13) are fixed with connecting pipes (6). The two connecting pipes (6) are communicated with the two cooling chambers (7).

4. A concrete recycling raw material crushing device according to claim 3, characterized in that: Both ends of the cooling water channel (10) extend to the outer surface of the shaft. Two groups of connecting holes (19) communicated with the cooling water channel (10) are provided inside the collar (15). The other ends of the two groups of connecting holes (19) are respectively communicated with the sector-shaped airbag one (12) and the sector-shaped airbag two (13).

5. A concrete recycling raw material crushing device according to claim 4, characterized in that: On the front end face of the end cover (11), a passive joint two (18) corresponding to and communicated with the sector-shaped airbag one (12) and the sector-shaped airbag two (13) is provided.

6. The concrete recycling raw material crushing device according to claim 5, characterized in that: On the tops of the sector-shaped airbag one (12) and the sector-shaped airbag two (13), a spare joint one (16) is fixed. At the position on the surface of the end cover (11) corresponding to the spare joint one (16), a mounting hole (22) for mounting the spare joint one (16) is provided.

7. A concrete recycling raw material crushing device according to claim 6, characterized in that: Inside the feed hopper (2), water inlet channels (20) are symmetrically provided. At the position corresponding to the inner wall of the feed hopper (2) and the crushing chamber (8), a spray head (21) communicated with the water inlet channels (20) is embedded and connected.

8. A concrete recycling raw material crushing device according to claim 7, characterized in that: The inside of the crushing cylinder (9) is designed with a hollow structure. The top of the crusher main body (1) is connected with a cover plate by screws.

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