CN111715508A

CN111715508A - Building aggregate regeneration device and process

Info

Publication number: CN111715508A
Application number: CN202010480448.3A
Authority: CN
Inventors: 王玉婷; 李亚林
Original assignee: Chengdu Juli Concrete Co ltd
Current assignee: Chengdu Juli Concrete Co ltd
Priority date: 2020-05-30
Filing date: 2020-05-30
Publication date: 2020-09-29
Anticipated expiration: 2040-05-30
Also published as: CN111715508B

Abstract

The invention discloses a building aggregate regeneration device and a process, and relates to the field of building waste recycling. The technical key points are as follows: a building aggregate regeneration process comprises the following steps: removing impurities and impurities in the construction waste; crushing, namely crushing the construction waste to obtain a crushed material; removing iron, and removing iron impurities in the crushed material to obtain an iron-removed material; screening, namely screening the iron-removed materials to obtain aggregates with different sizes; cleaning, namely cleaning the aggregate by adopting the building aggregate regeneration device to obtain a cleaning material; and (5) drying, namely drying the cleaning material to obtain the recycled building aggregate. The invention has the advantages of recycling construction waste, reducing construction waste and being green and environment-friendly.

Description

Building aggregate regeneration device and process

Technical Field

The invention relates to the technical field of building waste recycling, in particular to a building aggregate regeneration device and a building aggregate regeneration process.

Background

The construction waste refers to the general name of dregs, waste concrete, waste bricks and stones and other wastes produced by people in the production activities of the construction industry such as demolition, construction, decoration and repair. The construction waste can be classified into engineering residue soil, decoration waste, demolition waste, engineering slurry and the like according to the production source; according to the component classification of the composition, the construction waste can be divided into slag, concrete blocks, broken stones, broken bricks and tiles, waste mortar, slurry, asphalt blocks, waste plastics, waste metals, waste bamboo and wood and the like. The waste concrete blocks, the broken stone blocks and the waste tiles can be crushed and screened to obtain the recycled aggregate, and if the mud content of the recycled aggregate is high, the recycled aggregate needs to be cleaned.

The Chinese invention patent with the publication number of CN110560410A discloses vibrating screen bed washing equipment for a mine stone production line, which comprises a screening device and a screening and washing device, wherein the screening device and the screening and washing device are both fixed at the upper end of a base, the screening and washing device is fixed at the upper end of the right side of the base through a support rod, the upper end of the left side of the base is fixedly supported by a support rod, the screening device is fixed at the upper end of the support plate through a support slide rod, the bottom of the support slide rod penetrates through the support plate, and a second limiting block is fixed at the bottom of the support slide rod. According to the invention, the screening device and the screening device are arranged, and the screening device is arranged at the upper end of the left side of the screening device, so that when the stone material is screened and washed by using equipment, the screening device is firstly used for quickly vibrating and removing the silt with high surface content of the ore, and then the stone material rolls on the screen conveyer belt to move downwards and is washed by high-pressure clear water, so that the silt on the surface of the stone material can be washed cleanly.

The above prior art solution has the following drawbacks: because the building stones surface contains silt or earth, the building stones fall into the in-process of sieving mechanism from the sieving mechanism, the rubble takes place the striking with the screen washing device, the dust attached to building stones surface is waved and is formed the raise dust in the air, screen washing device also can form the raise dust when the vibration, contaminated air.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a building aggregate regeneration device which has the advantage of reducing dust.

The second purpose of the invention is to provide a building aggregate regeneration process which has the advantage of reducing dust.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a building aggregate regenerating unit, includes rectilinear vibrating screen and is located its week side's support, the top cover that lies in rectilinear vibrating screen on the support is equipped with the dust cover, the top and the uncovered setting in bottom of dust cover, the discharge end and the feed end that the dust cover lies in the vibrating screen all are provided with flexible fender curtain, be provided with the dust fall unit in the dust cover, the dust fall unit includes filter screen and water spray component, filter screen and dust cover inner wall connection, the water spray component is located filter screen top and towards the filter screen water spray.

Through adopting above-mentioned technical scheme, aggregate after the screening passes through the conveyer belt and carries to linear vibrating screen's feed end, flexible check apron plays the effect that prevents the raise dust excessive, the aggregate vibrates in linear vibrating screen, the raise dust of production moves towards the filter screen, the water spray subassembly sprays water to the filter screen, partly raise dust is filtered the interception by the filter screen, another part raise dust is intercepted by spray water, spray water and raise dust flow to linear vibrating screen after assembling into rivers on the filter screen, wash the aggregate, can enough detach the raise dust well, and can also avoid the filter screen to be blockked up by the raise dust.

The present invention in a preferred example may be further configured to: the water spraying assembly comprises a water inlet pipe and a plurality of spraying pipes, the spraying pipes are communicated with the water inlet pipe, and a plurality of spraying holes are formed in the lower portion of each spraying pipe.

Through adopting above-mentioned technical scheme, the water in the inlet pipe sprays from the spraying hole after the distribution of shower to make water distribution even, make the aggregate fully rinsed, increase the area of contact of raise dust and water simultaneously, reduce the raise dust.

The present invention in a preferred example may be further configured to: and an auxiliary cleaning unit which sprays water towards the linear vibrating screen is arranged below the filter screen.

Through adopting above-mentioned technical scheme, because the aggregate rolls in the interior limit vibration limit of linear vibration sieve, if only lean on the shower water that flows down from the filter screen to wash, the cleaning performance remains to promote, adopts supplementary cleaning unit cooperation shower water to wash, and the reinforcing cleaning performance plays the effect that reduces the raise dust moreover.

The present invention in a preferred example may be further configured to: the auxiliary cleaning unit comprises a plurality of cleaning pipes and a high-pressure nozzle, the cleaning pipes and the spray pipes are arranged in a staggered mode, the cleaning pipes are communicated with the water inlet pipe, the high-pressure nozzle is connected with the cleaning pipes, and the water outlet of the high-pressure nozzle faces the linear vibrating screen.

Through adopting above-mentioned technical scheme, the intraductal water of washing gets into high pressure nozzle after, through high pressure nozzle's pressurization effect, forms high pressure water jet and carries out the brute force to the aggregate and wash, and the cleaning performance is better, and the splash water droplet that high pressure water jet produced can reduce the raise dust moreover.

The present invention in a preferred example may be further configured to: and a foam raising unit is arranged above the water spray assembly of the dust cover.

Through adopting above-mentioned technical scheme, through the filtration of filter screen and shower water, the raise dust of large granule can be disposed, but in the raise dust of tiny granule still will be discharged the atmosphere from the top of dust cover, the raise dust unit can produce the foam, the area of contact of increase and tiny raise dust, reinforcing dust removal effect.

The present invention in a preferred example may be further configured to: raise the actuating mechanism that the foam unit includes foam spray gun, air pump and control foam spray gun sprays, the foam spray gun includes trachea, the rifle body, barrel, rifle mouth, cleaner bottle, pipette and spanner, trachea, the rifle body, barrel and rifle mouth connect gradually, the cleaner bottle is connected with the barrel, pipette one end and barrel intercommunication, its other end stretch into in the cleaner bottle, the spanner is articulated with the rifle body, air pump and trachea intercommunication, the barrel is connected with the dust cover, the rifle mouth stretches into inside the dust cover.

Through adopting above-mentioned technical scheme, can add the cleaner aqueous solution that produces the foam easily in the cleaner bottle, the during operation, actuating mechanism opens the foam spray gun, and compressed air is injected into to the internal injection of rifle to the air pump, inhales cleaner liquid through pipette negative pressure when compressed air flow direction nozzle, forms a large amount of small foams at the rifle mouth, sprays inside the dust cover, and small raise dust is in the same place after contacting with the foam, receives the action of gravity to drop to the filter screen, reinforcing dust removal effect.

The present invention in a preferred example may be further configured to: the driving mechanism comprises an air cylinder and a push plate, the air cylinder body is connected with the outer wall of the dust cover, one end of a piston rod of the air cylinder is connected with the push plate, and the push plate is located on one side, away from the gun body, of the wrench.

By adopting the technical scheme, when foam needs to be sprayed, the air cylinder drives the push plate to move, so that the wrench is pressed to open the foam spray gun; when the machine is stopped, the air cylinder drives the push plate to return to the original position, and the wrench returns to the original position to close the foam spray gun.

The present invention in a preferred example may be further configured to: the filter screen is obliquely arranged, and the oblique direction of the filter screen is opposite to the movement direction of the aggregate.

Through adopting above-mentioned technical scheme, because the shower water gathering speed is slower on the filter screen, the filter screen slope sets up, can accelerate the speed of shower water gathering whereabouts, as early as possible with the aggregate contact, the lower end of filter screen is located the feed end top of rectilinear vibrating screen in addition, can make more shower water flow direction rectilinear vibrating screen's feed end, reinforcing cleaning performance.

The second purpose of the invention is realized by the following technical scheme:

a building aggregate regeneration process comprises the following steps:

removing impurities and impurities in the construction waste;

crushing, namely crushing the construction waste to obtain a crushed material;

removing iron, and removing iron impurities in the crushed material to obtain an iron-removed material;

screening, namely screening the iron-removed materials to obtain aggregates with different sizes;

cleaning, namely cleaning the aggregate by using the building aggregate regeneration device as claimed in any one of claims 1 to 8 to obtain a cleaning material;

and (5) drying, namely drying the cleaning material to obtain the recycled building aggregate.

By adopting the technical scheme, the construction waste is subjected to impurity removal, crushing, iron removal, screening, cleaning and drying in sequence to obtain the regenerated construction aggregate, so that the construction waste can be recycled, the construction waste is reduced, and the method is green and environment-friendly; in the cleaning step, as the building aggregate regeneration device in the first purpose is adopted to clean the aggregate, the dust generated in the cleaning step can be reduced, the pollution to the air is reduced, and the filter screen can be prevented from being blocked by the dust.

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

1. through setting up the dust cover, flexible check apron, play the excessive effect of prevention raise dust, the aggregate vibrates in linear vibration sieve, the raise dust of production moves towards the filter screen, the water spray subassembly sprays water to the filter screen, partly raise dust is filtered the interception by the filter screen, another part raise dust is intercepted by spray water, spray water and raise dust assemble into rivers on the filter screen in the backward flow to linear vibration sieve, wash the aggregate, can enough detach the raise dust well, and can also avoid the filter screen to be blockked up by the raise dust.

2. Through setting up scavenge pipe and high pressure nozzle, after the water entering high pressure nozzle in the scavenge pipe, through high pressure nozzle's pressurization effect, form high pressure water jet and carry out the brute force to the aggregate and wash, the cleaning performance is better, and the splash water droplet that high pressure water jet produced can reduce the raise dust moreover.

3. Through setting up the raise dust unit, can form a large amount of small foams, spray to the dust cover inside, small raise dust is in the same place with foam contact back gathering, receives the action of gravity to drop to the filter screen, reinforcing dust removal effect.

Drawings

FIG. 1 is a schematic structural view of a construction aggregate recycling device;

FIG. 2 is a cross-sectional view of a construction aggregate reclaimer taken along a vertical plane with two barrel axes;

FIG. 3 is a schematic view of the water spray assembly and the auxiliary cleaning unit;

FIG. 4 is a cross-sectional view of the foam spray gun and air pump;

fig. 5 is a partially enlarged schematic view of a portion a in fig. 1.

Reference numerals: 1. a linear vibrating screen; 2. a support; 3. a dust cover; 4. a flexible curtain; 5. a filter screen; 6. a water spray assembly; 61. a water inlet pipe; 62. a shower pipe; 7. spraying holes; 8. an auxiliary cleaning unit; 81. cleaning the tube; 82. a high pressure spray head; 9. a foam spray gun; 10. an air pump; 11. a drive mechanism; 1101. a cylinder; 1102. pushing the plate; 12. an air tube; 13. a gun body; 14. a barrel; 15. a gun nozzle; 16. a detergent bottle; 17. a pipette; 18. a wrench; 19. a frame; 20. a vibrating hopper; 21. a damping spring; 22. a vibration motor; 23. and (4) a sieve plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1 and 2, the building aggregate regeneration device disclosed by the invention comprises a linear vibrating screen 1 and a support 2 located on the periphery of the linear vibrating screen 1, a cuboid-shaped dust cover 3 is covered on the support 2 and located above the linear vibrating screen 1, the dust cover 3 is welded with the support 2, the top end and the bottom end of the dust cover 3 are arranged in an open manner, flexible curtain baffles 4 are arranged at the discharge end and the feed end of the dust cover 3 located on the vibrating screen, in the embodiment, the flexible curtain baffles 4 are PVC door curtains, the flexible curtain baffles 4 are fixedly connected with the dust cover 3 through screws, a dust settling unit is arranged in the dust cover 3, the dust settling unit comprises a filter screen 5 and a water spraying assembly 6, the filter screen 5 is connected with the inner wall of the dust cover 3 through screws, the filter screen 5 can be a stainless steel filter screen, and the water spraying assembly.

Referring to fig. 2, the linear vibrating screen 1 includes a frame 19 and a vibrating hopper 20 located on the frame 19, a damping spring 21 is connected between the side wall of the vibrating hopper 20 and the frame 19, the vibrating hopper 20 is fixedly connected with a vibrating motor 22 through a bolt toward one side of the frame 19, a screen plate 23 with screen holes is fixedly connected with one side of the vibrating hopper 20 away from the frame 19 through a bolt, and the vibrating hopper 20 and the screen plate 23 are obliquely arranged from a feeding end to a discharging end.

Aggregate after the screening passes through the conveyer belt and carries to linear vibration sieve 1's feed end, flexible check apron 4 plays the excessive effect of preventing the raise dust, the aggregate vibrates on linear vibration sieve 1's sieve 23, the raise dust of production moves towards filter screen 5, water spray component 6 sprays water to filter screen 5, partly raise dust is filtered the interception by filter screen 5, another part raise dust is intercepted by spray water, spray water and raise dust assemble into rivers on filter screen 5 in the backward flow linear vibration sieve 1, wash the aggregate, can enough detach the raise dust well, and can also avoid filter screen 5 to be blockked up by the raise dust.

Referring to fig. 2 and 3, the water spray assembly 6 includes a water inlet pipe 61 and a plurality of spray pipes 62 arranged in parallel, the water inlet pipe 61 penetrates through the dust cover 3, one end of each spray pipe 62 is communicated with the water inlet pipe 61, the other end of each spray pipe 62 is closed, and a plurality of spray holes 7 are formed below the spray pipes 62. The water in the inlet tube 61 sprays downwards from the spray holes 7 after passing through the distribution of the spray pipes 62, so that the water is distributed uniformly, the aggregate is fully cleaned, the contact area between the raised dust and the water is increased, and the raised dust is reduced.

Because the spray water is gathered on filter screen 5 speed is slower, consequently, filter screen 5 slope sets up, and the incline direction of filter screen 5 is opposite with the direction of motion of aggregate, can accelerate the speed of spray water gathering whereabouts, contacts with the aggregate as early as possible, and the lower end of filter screen 5 is located the feed end top of linear vibrating screen 1 in addition, can make more spray water flow to the feed end of linear vibrating screen 1, reinforcing cleaning performance.

Referring to fig. 2 and 3, the auxiliary cleaning unit 8 which sprays water towards the linear vibrating screen 1 is arranged below the filter screen 5, the auxiliary cleaning unit 8 comprises a plurality of cleaning pipes 81 and high-pressure nozzles 82 which are arranged in parallel, the cleaning pipes 81 are arranged in parallel and staggered with the spray pipes 62, one end of each cleaning pipe 81 is communicated with the corresponding water inlet pipe 61, the other end of each cleaning pipe is closed, the high-pressure nozzles 82 are connected with the cleaning pipes 81, and the water outlets of the high-pressure nozzles 82 face the linear vibrating screen 1.

After water in the cleaning pipe 81 enters the high-pressure nozzle 82, high-pressure water jet is formed to strongly wash the aggregates under the pressurizing action of the high-pressure nozzle 82, the aggregates are cleaned by matching with spray water, the cleaning effect is enhanced, and the flying dust can be reduced by the sputtering water drops generated by the high-pressure water jet.

Although large-particle dust can be removed through the filtering of the filtering net 5 and the spraying water, the small-particle dust can still be discharged into the atmosphere from the upper part of the dust cover 3, in order to further remove the small-particle dust in the dust, referring to fig. 2, a dust raising unit is further arranged on the dust cover 3 above the water spraying assembly 6, the dust raising unit comprises a foam spray gun 9, an air pump 10 and a driving mechanism 11 for controlling the foam spray gun 9 to spray, and the foam spray guns 9 are arranged in two and symmetrically arranged on two opposite side walls of the dust cover 3.

Referring to fig. 4, the foam spray gun 9 includes an air pipe 12, a gun body 13, a gun barrel 14, a gun nozzle 15, a cleaning agent bottle 16, a pipette 17 and a wrench 18, the air pipe 12, the gun body 13, the gun barrel 14 and the gun nozzle 15 are connected in sequence, the cleaning agent bottle 16 is connected with the gun barrel 14, one end of the pipette 17 is communicated with the gun barrel 14, the other end of the pipette 17 extends into the cleaning agent bottle 16, the wrench 18 is hinged to the gun body 13, the air pump 10 is communicated with the air pipe 12, the gun barrel 14 is connected with the dust cover 3, the gun nozzle 15 extends into the dust cover 3, and an outlet of the gun nozzle 15 is a closed port which is arranged horizontally and.

Referring to fig. 4 and 5, the driving mechanism 11 includes a cylinder 1101 and a push plate 1102, the cylinder 1101 is connected to the outer wall of the dust cover 3 through a bolt, one end of the piston rod of the cylinder 1101 is connected to the push plate 1102 through a screw, and the push plate 1102 is located on the side of the wrench 18 away from the gun body 13. To avoid the cleaning agent bottle 16, the air cylinder 1101 may be a double-rod air cylinder, and the cleaning agent bottle 16 is located between two piston rods of the air cylinder 1101. Can add the cleaner aqueous solution that easily produces the foam in the cleaner bottle 16, for example, the detergent aqueous solution, in operation, cylinder 1101 drives push plate 1102 motion, thereby press the spanner 18 to open foam spray gun 9, compressed air is injected into to the air pump 10 in the rifle body 13, the cleaner liquid is inhaled through pipette 17 negative pressure when compressed air flows to the nozzle, form a large amount of tiny foams at rifle mouth 15, spray inside dust cover 3, gathering together after tiny raise dust and the foam contact, receive the action of gravity to drop to filter screen 5, the reinforcing dust removal effect.

The implementation principle of the first embodiment is as follows: aggregate after the screening passes through the conveyer belt and carries to the feed end of linear vibration sieve 1, and on the aggregate dropped sieve 23, vibrating motor 22 drove the vibration of vibration fill 20, and the raise dust of production moved towards filter screen 5, and the water in inlet tube 61 sprays downwards from spraying hole 7 after the distribution of shower 62 to make water distribution even, make the aggregate fully washed, increase the area of contact of raise dust and water simultaneously, reduce the raise dust.

Cylinder 1101 drives push pedal 1102 and moves to press spanner 18 to open foam spray gun 9, air pump 10 injects compressed air into the rifle body 13, inhales the cleaner liquid through pipette 17 negative pressure during compressed air flow direction nozzle, forms a large amount of small foams at rifle mouth 15, sprays inside dust cover 3, and small raise dust is in the same place after contacting with the foam, receives the action of gravity to drop to filter screen 5, reinforcing dust removal effect.

Example two: a building aggregate regeneration process comprises the following steps:

removing impurities, namely removing impurities in construction waste, wherein the construction waste can be waste concrete and waste bricks;

crushing, namely crushing the construction waste, wherein a jaw crusher can be adopted to obtain a crushed material;

removing iron, removing iron impurities in the crushed material, and obtaining an iron-removed material by adopting an electromagnet;

screening, namely screening the iron-removed materials by adopting a drum screen to obtain aggregates with different sizes;

cleaning, namely cleaning the aggregate by using the building aggregate regeneration device as described in the aim one to obtain a cleaning material;

and (4) drying, namely drying the cleaning material by adopting hot air or naturally airing to obtain the recycled building aggregate.

The implementation principle of the second embodiment is the same as that of the first embodiment, and the description thereof is omitted.

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

Claims

1. The utility model provides a building aggregate regenerating unit, includes rectilinear vibrating screen (1) and is located support (2) of its week side, a serial communication port, the top cover that lies in rectilinear vibrating screen (1) on support (2) is equipped with dust cover (3), the top and the uncovered setting in bottom of dust cover (3), discharge end and the feed end that dust cover (3) lie in the vibrating screen all are provided with flexible fender curtain (4), be provided with the dust fall unit in dust cover (3), the dust fall unit includes filter screen (5) and water spray component (6), filter screen (5) and dust cover (3) inner wall connection, water spray component (6) are located filter screen (5) top and towards filter screen (5) water spray.

2. The building aggregate regeneration device according to claim 1, wherein the water spray assembly (6) comprises a water inlet pipe (61) and a plurality of spray pipes (62), the spray pipes (62) are communicated with the water inlet pipe (61), and a plurality of spray holes (7) are formed below the spray pipes (62).

3. A construction aggregate recycling device according to claim 2, characterized in that an auxiliary washing unit (8) spraying water toward the linear vibrating screen (1) is provided below the filter screen (5).

4. The building aggregate regeneration device according to claim 3, wherein the auxiliary cleaning unit (8) comprises a plurality of cleaning pipes (81) and high-pressure spray nozzles (82), the cleaning pipes (81) and the spray pipes (62) are arranged in a staggered mode, the cleaning pipes (81) are communicated with the water inlet pipe (61), the high-pressure spray nozzles (82) are connected with the cleaning pipes (81), and water outlets of the high-pressure spray nozzles (82) face the linear vibrating screen (1).

5. The building aggregate recycling device according to claim 1, wherein a foam raising unit is further arranged on the dust cover (3) above the water spray assembly (6).

6. The building aggregate regeneration device according to claim 5, wherein the foam raising unit comprises a foam spray gun (9), an air pump (10) and a driving mechanism (11) for controlling the spray of the foam spray gun (9), the foam spray gun (9) comprises an air pipe (12), a gun body (13), a gun barrel (14), a gun nozzle (15), a cleaning agent bottle (16), a pipette (17) and a wrench (18), the air pipe (12), the gun body (13), the gun barrel (14) and the gun nozzle (15) are sequentially connected, the cleaning agent bottle (16) is connected with the gun barrel (14), one end of the pipette (17) is communicated with the gun barrel (14), the other end of the pipette extends into the cleaning agent bottle (16), the wrench (18) is hinged with the gun body (13), the air pump (10) is communicated with the air pipe (12), and the gun barrel (14) is connected with the dust cover (3), the gun nozzle (15) extends into the dust cover (3).

7. The building aggregate recycling device according to claim 6, wherein the driving mechanism (11) comprises a cylinder (1101) and a push plate (1102), the cylinder (1101) is connected with the outer wall of the dust cover (3), one end of the piston rod of the cylinder (1101) is connected with the push plate (1102), and the push plate (1102) is located on the side of the wrench (18) far away from the gun body (13).

8. A construction aggregate recycling device according to claim 1, wherein said filter screen (5) is disposed obliquely, and the direction of inclination of the filter screen (5) is opposite to the direction of movement of the aggregate.

9. The building aggregate regeneration process is characterized by comprising the following steps of:

removing impurities and impurities in the construction waste;

crushing, namely crushing the construction waste to obtain a crushed material;