CN113441239B

CN113441239B - Concrete circulation breaker

Info

Publication number: CN113441239B
Application number: CN202110620254.3A
Authority: CN
Inventors: 李星星
Original assignee: Rizhao Hualing Concrete Industry Co ltd
Current assignee: Rizhao Hualing Concrete Industry Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-07-19
Anticipated expiration: 2041-06-03
Also published as: CN113441239A

Abstract

The invention discloses a concrete circulating crushing device, which belongs to the technical field of concrete crushing, and is characterized in that a first crushing knife and a second crushing knife can realize the crushing function of concrete, a filter screen can be used for screening the crushed concrete, the qualified concrete can pass through the filter screen and enter a recovery box, a connecting cylinder can spray a large amount of gas under the action of a first blower, so that the dust in the crushing box is discharged through an exhaust pipe, a first circular frame in the exhaust pipe rotates under the action of a windmill, a polyester coating and a plastic coating on the surface of a rubber pipe are rubbed with each other to generate static electricity to realize the adsorption effect of the dust in air, in addition, the rubber pipe can be expanded by using a second blower, the adhesive force of the dust can be reduced due to the expansion of the rubber pipe, and a circular hole on the surface of the rubber pipe is opened while the rubber pipe is expanded, the function of cleaning dust on the surface of the rubber tube is realized by spraying air flow inside the rubber tube through the circular hole.

Description

Concrete circulation breaker

Technical Field

The invention relates to the technical field of concrete crushing, in particular to a concrete circulating crushing device.

Background

The service life of the concrete is generally 50-60 years, the waste concrete can be recycled after being crushed, the crushed concrete blocks are high-quality concrete aggregates, a large amount of micro powder can be directly used as raw materials of the cement, the concrete prepared from the regenerated cement and the regenerated aggregates can enter the next cycle, and zero emission of waste is realized in the whole cycle process.

The crushing of the concrete usually needs the participation of a crushing device, and most of the existing crushing devices can only realize single crushing of the concrete, so that the crushing precision of the concrete cannot be ensured, and the recycling efficiency of the concrete is influenced; meanwhile, dust generated in the crushing process can be dispersed in the air, so that the health of workers is influenced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a concrete circulating crushing device which can realize the function of crushing concrete by a first crushing knife and a second crushing knife, can screen the crushed concrete by using a filter screen, can lead the qualified concrete to pass through the filter screen and enter a recovery box, simultaneously lead a connecting column cylinder in the filter screen to spray a large amount of gas under the action of a first blower, lead the dust in the crushing box to be discharged through an exhaust pipe, lead a first round frame in the exhaust pipe to rotate under the action of a windmill, lead a terylene coating and a plastic coating on the surface of a rubber pipe to rub with each other to generate static electricity to realize the adsorption effect on the dust in air, lead the rubber pipe to expand by using a second blower, lead the adhesive force of the dust to be reduced and lead round holes on the surface of the rubber pipe to be propped open when the rubber pipe expands, the function of cleaning dust on the surface of the rubber tube is realized by spraying air flow inside the rubber tube through the circular hole.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A concrete circulating crushing device comprises a recycling box, wherein a protective box is fixedly connected to the top end of the recycling box, the inner bottom end of the protective box is rotatably connected with a crushing box, a plurality of second crushing knives are fixedly connected to the inner side surface of the crushing box, an upright post is fixedly connected to the inner top end of the protective box, one end of the upright post extends into the crushing box, a plurality of first crushing knives are fixedly connected to the periphery of the crushing box, a mounting ring is rotatably connected to the upright post, a filter screen is fixedly connected to the periphery of the mounting ring, the bottom end of the filter screen is fixedly connected with the inner bottom end of the crushing box, a material leakage port is formed between the recycling box and the crushing box, a motor box is fixedly connected to the inside of the recycling box, a motor is installed in the motor box, a driving shaft is fixedly connected to the output end of the motor, and the top end of the driving shaft is fixedly connected with the bottom end of the crushing box, the function of crushing the concrete can be realized through the first crushing knife and the second crushing knife, the crushed concrete can be screened by utilizing the filter screen, the qualified concrete can pass through the filter screen and enter the recycling box, simultaneously, under the action of the first blower, the connecting column cylinder in the filter screen can spray a large amount of gas, so that the dust in the crushing box is discharged through the exhaust duct, the first circular frame inside the exhaust duct, rotate under the effect of windmill for the dacron coating and the plastic coating looks mutual friction on rubber tube surface produce the adsorption of static realization dust in to the air, in addition, utilize the second air-blower can make the rubber tube inflation, and the rubber tube inflation can make the adhesive force of dust descend, and its surperficial circular port is strutted when the rubber tube inflation, and the function of clearance rubber tube surface dust is realized through the circular port blowout to the inside air current of rubber tube.

Further, the filter screen comprises connection column and elasticity rubber hose, a plurality of fumaroles have been seted up on the top of connecting the column, be provided with a plurality of connection nozzles around the connection column, fixed connection elasticity rubber hose between the connection nozzle, at the cooperation of first air-blower and connection column, can be with the dust of broken incasement portion towards the exhaust pipe dispersion, guarantee that the dust can gather and be cleared up in the exhaust pipe.

Further, the circulation mouth has been seted up to the side of broken case, the medial surface of circulation mouth is provided with the internal thread, the medial surface threaded connection of circulation mouth has the circulation case, and the circulation case can carry out interim storage to the concrete after preliminary breakage, and the staff of being convenient for utilizes the circulation case, pours the concrete into broken incasement once more and carries out the recrushing.

Furthermore, the lateral surface fixedly connected with install bin of broken case, install first air-blower in the install bin, fixedly connected with connecting pipe between first air-blower and the connection nozzle.

Further, a plurality of feed inlets have been seted up on the top of guard box, the top of guard box articulates there is the closing plate, and the closing plate can play sealed effect to the feed inlet, avoids the broken in-process of concrete, and the concrete of granule splashes to the broken incasement side and can avoid the dust of broken incasement portion to disperse in the outside air simultaneously.

Furthermore, an exhaust pipe is installed on one side surface of the protection box, a second circular frame is fixedly connected to the inner side surface of the exhaust pipe, and a first circular frame is connected to the inner side surface of the exhaust pipe in a rotating mode and clings to the second circular frame.

Further, the cavity has all been seted up to first circular frame and the inside of the circular frame of second, annular through groove has been seted up to a side of first circular frame, a side fixedly connected with annular plate of the circular frame of second, annular plate and annular through groove rotate to be connected, a plurality of holes of aerifing have been seted up to the inside of annular plate, guarantee that first circular frame can rotate the circular frame of second relatively, guarantee simultaneously that the second air-blower can inflate the inboard rubber tube of first circular frame.

Further, many rubber tubes of the medial surface fixedly connected with of first circular frame and the circular frame of second, rubber tube and inner chamber intercommunication, the contact each other between the rubber tube, the rubber tube is made by elastic material, the surface of rubber tube is provided with dacron coating and plastic coating respectively, the medial surface of rubber tube is provided with the elastic connection net, a plurality of circular ports have been seted up on the surface of rubber tube, and what the rubber tube was made by elastic material makes the rubber tube can expand after inflating for the adhesive force of rubber tube surface dust descends, and the circular port on rubber tube surface for the inside air current of rubber tube flows out and blows the dust on rubber tube surface, realizes the function of automatic deashing, and the torn condition appears when the rubber tube inflation can be avoided to the elastic connection net.

Furthermore, the top fixedly connected with second air-blower of exhaust pipe, the one end of second air-blower is connected with the connecting pipe, the one end and the inside cavity intercommunication of the circular frame of second of connecting pipe, the bottom fixedly connected with dust collecting box of exhaust pipe, the bottom and the dust collecting box intercommunication of exhaust pipe, the dust collecting box can play the dust effect to the dust that the rubber tube surface drops.

Furthermore, the inner side surface of the exhaust pipe is rotatably connected with a third circular frame, a windmill is installed in the third circular frame, a plurality of connecting shafts are fixedly connected between the third circular frame and the first circular frame, and the windmill can drive the first circular frame to rotate under the action of wind force so as to drive the rubber pipe on the inner side of the windmill to rotate, so that the function of friction between the rubber pipes is realized.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme can realize the function of crushing the concrete by the first crushing knife and the second crushing knife, the crushed concrete can be screened by utilizing the filter screen, the qualified concrete can pass through the filter screen and enter the recycling box, simultaneously, under the action of the first blower, the connecting column cylinder in the filter screen can spray a large amount of gas, so that the dust in the crushing box is discharged through the exhaust duct, the first circular frame inside the exhaust duct, rotate under the effect of windmill for the dacron coating and the plastic coating looks mutual friction on rubber tube surface produce the adsorption of static realization dust in to the air, in addition, utilize the second air-blower can make the rubber tube inflation, and the rubber tube inflation can make the adhesive force of dust descend, and its surperficial circular port is strutted when the rubber tube inflation, and the function of clearance rubber tube surface dust is realized through the circular port blowout to the inside air current of rubber tube.

(2) In the cooperation of first air-blower and connection column casing, can be with the inside dust of broken case towards the exhaust pipe dispersion, guarantee that the dust can gather and be cleared up in the exhaust pipe.

(3) The circulation case can carry out interim storage to the concrete after preliminary breakage, and the staff of being convenient for utilizes the circulation case, pours the concrete into the broken incasement once more and carries out the recrushment.

(4) The annular plate is connected with the annular through groove in a rotating mode, the plurality of inflation holes are formed in the annular plate, the first circular frame can rotate relative to the second circular frame, and meanwhile the second air blower can inflate the rubber tube on the inner side of the first circular frame.

(5) The rubber tube is made of elastic materials, so that the rubber tube can expand after being inflated, the adhesive force of dust on the surface of the rubber tube is reduced, the circular holes on the surface of the rubber tube enable air flow inside the rubber tube to flow out to blow up the dust on the surface of the rubber tube, the automatic ash removal function is achieved, and the elastic connection net can avoid the rubber tube from expanding and can avoid tearing.

(6) The closing plate can play sealed effect to the feed inlet, avoids the broken in-process of concrete, and the concrete of tiny particle splashes to the broken case outside can avoid the inside dust of broken case to disperse in the outside air simultaneously.

(7) The dust collecting box can play a role in collecting dust falling off from the surface of the rubber hose.

(8) The windmill rotates under the action of wind power to drive the first circular frame to rotate, so as to drive the rubber pipes on the inner side of the first circular frame to rotate, and the function of friction between the rubber pipes is realized.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view of a connection structure of a first circular frame and a rubber hose;

FIG. 4 is a cross-sectional view of the hose;

FIG. 5 is a schematic view of the connection structure between the third circular frame and the windmill;

FIG. 6 is a schematic view of a screen configuration;

fig. 7 is a top view of the internal structure of the crushing box.

The reference numbers in the figures illustrate:

1. a recycling bin; 2. a helical pusher blade; 3. a crushing box; 4. a protective box; 5. a first crushing knife; 6. a column; 7. a second crushing knife; 8. a first blower; 9. a motor; 10. filtering with a screen; 11. a second blower; 1001. connecting the column casing; 1002. an elastic hose; 12. a first circular frame; 13. a second circular frame; 14. a third circular frame; 15. a windmill; 16. a hose; 17. an exhaust duct; 18. a dust recovery box.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The embodiment is as follows:

referring to fig. 1 and 2, a concrete circulating crushing device comprises a recycling tank 1, a protective tank 4 is fixedly connected to the top end of the recycling tank 1, a crushing tank 3 is rotatably connected to the bottom end of the inner side of the protective tank 4, a plurality of second crushing knives 7 are fixedly connected to the inner side of the crushing tank 3, an upright post 6 is fixedly connected to the top end of the inner side of the protective tank 4, one end of the upright post 6 extends into the crushing tank 3, a plurality of first crushing knives 5 are fixedly connected to the periphery of the crushing tank 3, a mounting ring is rotatably connected to the upright post 6, a filter screen 10 is fixedly connected to the periphery of the mounting ring, the bottom end of the filter screen 10 is fixedly connected to the bottom end of the inner side of the crushing tank 3, a material leakage port is formed between the recycling tank 1 and the crushing tank 3, a motor tank is fixedly connected to the inside of the recycling tank 1, a motor 9 is installed in the motor tank, a drive shaft is fixedly connected to the output end of the motor 9, and the top end of the drive shaft is fixedly connected to the bottom end of the crushing tank 3, the function of crushing the concrete can be realized through the first crushing knife 5 and the second crushing knife 7, the crushed concrete can be screened by the filter screen 10, the qualified concrete can pass through the filter screen 10 and enter the recycling box 1, meanwhile, under the action of the first blower 8, the connecting cylinder 1001 in the filter screen 10 can spray a large amount of gas, so that the dust in the crushing box 3 is discharged through the exhaust duct 17, the first circular frame 12 inside the exhaust duct 17, the rubber tube 16 rotates under the action of the windmill 15, so that static electricity is generated by mutual friction of the polyester coating and the plastic coating on the surface of the rubber tube 16 to realize the adsorption effect on dust in air, in addition, the rubber tube 16 can expand by using the second blower 11, the adhesive force of the dust can be reduced by the expansion of the rubber tube 16, the circular holes 1601 on the surface of the rubber tube 16 are opened while the rubber tube 16 expands, and air flow inside the rubber tube 16 is ejected through the circular holes 1601 to realize the function of cleaning the dust on the surface of the rubber tube 16.

Please refer to fig. 6, the filter screen 10 comprises connection column 1001 and elastic rubber hose 1002, a plurality of fumaroles have been seted up on the top of connecting column 1001, be provided with a plurality of connection nozzles around the connection column 1001, fixed connection elastic rubber hose 1002 between the connection nozzle, at the cooperation of first air-blower 8 and connection column 1001, can disperse the inside dust of broken case 3 towards exhaust pipe 17, guarantee that the dust can gather and be cleared up in exhaust pipe 17.

Referring to fig. 1, a circulation port is formed in the side surface of the crushing box 3, internal threads are formed in the inner side surface of the circulation port, the inner side surface of the circulation port is in threaded connection with a circulation box 2, the circulation box 2 can temporarily store the primarily crushed concrete, and workers can pour the concrete into the crushing box 3 again to perform secondary crushing by using the circulation box 2. The lateral surface fixedly connected with install bin of broken case 3 installs first air-blower 8 in the install bin, first air-blower 8 and be connected fixedly connected with connecting pipe between the nozzle. A plurality of feed inlets have been seted up on the top of guard box 4, and the top of guard box 4 articulates there is the closing plate, and the closing plate can play sealed effect to the feed inlet, avoids the concrete crushing in-process, and the concrete of tiny granule splashes to the broken case outside can avoid the dust of broken incasement portion to disperse in the outside air simultaneously.

Referring to fig. 2, an exhaust duct 17 is installed on one side surface of the protection box 4, a second circular frame 13 is fixedly connected to an inner side surface of the exhaust duct 17, and a first circular frame 12 is rotatably connected to the inner side surface of the exhaust duct 17, which is tightly attached to the second circular frame 13. The inside of first circular frame 13 and second circular frame 12 has all seted up the cavity, annular through groove has been seted up to one side of first circular frame 13, a side fixedly connected with annular slab of second circular frame 12, the annular slab rotates with annular through groove to be connected, a plurality of holes of aerifing have been seted up to the inside of annular slab, guarantee that first circular frame 12 can rotate second circular frame 13 relatively, guarantee simultaneously that second air-blower 11 can inflate the inboard rubber tube 16 of first circular frame 12.

Referring to fig. 4, a plurality of rubber tubes 16 are fixedly connected to inner side surfaces of the first circular frame 12 and the second circular frame 13, the rubber tubes 16 are communicated with the inner cavities, the rubber tubes 16 are in contact with each other, the rubber tubes 16 are made of an elastic material, polyester coatings and plastic coatings are respectively arranged on surfaces of the rubber tubes 16, elastic connection nets 19 are arranged on the inner side surfaces of the rubber tubes 16, a plurality of circular holes 1601 are formed in the surfaces of the rubber tubes 16, the rubber tubes 16 are made of the elastic material so that the rubber tubes 16 can expand after being inflated, adhesive force of dust on the surfaces of the rubber tubes 16 is reduced, the circular holes 1601 on the surfaces of the rubber tubes 16 enable airflow in the rubber tubes 16 to flow out to blow up the dust on the surfaces of the rubber tubes 16, and an automatic dust removing function is achieved, and the elastic connection nets 19 can avoid tearing when the rubber tubes 16 expand.

Referring to fig. 1, a second blower 11 is fixedly connected to a top end of the exhaust duct 17, one end of the second blower 11 is connected to a connecting pipe, one end of the connecting pipe is communicated with a cavity inside the second circular frame 13, a dust collecting box 18 is fixedly connected to a bottom end of the exhaust duct 17, the bottom end of the exhaust duct 17 is communicated with the dust collecting box 18, and the dust collecting box 18 can play a role in collecting dust falling off from the surface of the rubber hose 16.

Referring to fig. 3, the inner side of the exhaust duct 17 is rotatably connected to a third circular frame 14, a windmill 15 is installed in the third circular frame 14, a plurality of connecting shafts are fixedly connected between the third circular frame 14 and the first circular frame 12, and the windmill 15 rotates under the action of wind power to drive the first circular frame 12 to rotate, so as to drive the rubber tube 16 inside the first circular frame to rotate, thereby realizing the function of friction between the rubber tubes 16.

The invention can realize the function of crushing the concrete by the first crushing knife 5 and the second crushing knife 7, can screen the crushed concrete by the filter screen 10, the qualified concrete can pass through the filter screen 10 and enter the recycling box 1, meanwhile, under the action of the first blower 8, the connecting cylinder 1001 in the filter screen 10 can spray a large amount of gas, so that the dust in the crushing box 3 is discharged through the exhaust duct 17, the first circular frame 12 inside the exhaust duct 17, the rubber tube 16 is rotated under the action of the windmill 15, so that the terylene coating and the plastic coating on the surface of the rubber tube 16 are rubbed with each other to generate static electricity to realize the adsorption effect on dust in air, in addition, the rubber tube 16 can be expanded by using the second blower 11, the adhesive force of the dust can be reduced by the expansion of the rubber tube 16, the circular holes 1601 on the surface of the rubber tube 16 are opened while the rubber tube 16 is expanded, and the air flow in the rubber tube 16 is sprayed out through the circular holes 1601 to realize the function of cleaning the dust on the surface of the rubber tube 16.

When in use, the sealing plate can be opened firstly, then the motor 9 and the first blower 8 are started, the motor 9 drives the crushing box 3 to rotate, the crushing box 3 drives the second crushing knife 7 to rotate, then the concrete to be crushed is poured into the crushing box 3 through the feeding hole, under the action of the first crushing knife 5 and the second crushing knife 7, the preliminary crushing function of the concrete is realized, the concrete after the preliminary crushing falls on the filter screen 10, because the filter screen 10 is conical, the crushed concrete can roll on the filter screen 10, and during the rolling process, filter screen 10 can filter the concrete after the breakage, and qualified concrete can pass filter screen 10 and get into recovery case 1 in, and unqualified concrete can roll and temporarily store in circulation case 2, and the staff will circulate case 2 and take off, pour unqualified concrete into broken case 3 once more in, and then the recrushment to improve the crushing precision of concrete.

In the concrete crushing process, a large amount of dust is inevitably generated, the air flow generated by the first air blower 8 is ejected through the connecting cylinder 1001, so that the dust moves towards the exhaust pipe 17 along with the air flow, when the air flow drives the dust to enter the exhaust pipe 17, the air flow can contact the windmill 15, so that the windmill 15 rotates, the windmill 15 drives the third circular frame 14 to rotate, further, the first circular frame 12 is driven to rotate through the connecting shaft, the rubber tube 16 on the inner side of the first circular frame 12 is driven to rotate, so that the rubber tube 16 on the position is rubbed with the rubber tube 16 on the inner side of the second circular frame 13, under the action of the polyester coating and the plastic coating, the surface of the rubber tube 16 generates static electricity, the dust entering the exhaust pipe 17 can be adsorbed, and the discharged gas of the device is prevented from carrying a large amount of dust.

When dust on the surface of the rubber tube 16 needs to be cleaned, the first air blower 8 can be turned off, the second air blower 11 is turned on, after the first air blower 8 is turned off, the windmill 15 has no air flow effect and stops rotating, the first circular frame 12 further stops rotating, no friction motion exists between the rubber tubes 16, the second air blower 11 can inflate the cavities inside the first circular frame 12 and the second circular frame 13, and further inflate the inside of the rubber tube 16, so that the rubber tube 16 expands, the circular holes 1601 on the surface of the rubber tube 16 are expanded, meanwhile, the adhesive force of the dust on the surface of the rubber tube 16 is reduced, the air flow inside the rubber tube 16 is ejected through the circular holes 1601, the dust is separated from the surface of the rubber tube 16, the automatic dust cleaning function is achieved, the dust separated from the rubber tube 16 falls into the dust collecting box 18, and the dust collection is completed.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by the equivalent or modified embodiments and the modified concepts of the present invention.

Claims

1. The utility model provides a concrete circulation breaker, includes collection box (1), its characterized in that: the material recycling device is characterized in that a protective box (4) is fixedly connected to the top end of the recycling box (1), a crushing box (3) is rotatably connected to the inner bottom end of the protective box (4), a plurality of second crushing knives (7) are fixedly connected to the inner side of the crushing box (3), a stand column (6) is fixedly connected to the inner top end of the protective box (4), one end of the stand column (6) extends into the crushing box (3), a plurality of first crushing knives (5) are fixedly connected to the periphery of the stand column (6), a mounting ring is rotatably connected to the stand column (6), a filter screen (10) is fixedly connected to the periphery of the mounting ring, the bottom end of the filter screen (10) is fixedly connected to the inner bottom end of the crushing box (3), a material leakage port is formed between the recycling box (1) and the crushing box (3), a motor box is fixedly connected to the inner portion of the recycling box (1), and a motor (9) is installed in the motor box, the output end of the motor (9) is fixedly connected with a driving shaft, and the top end of the driving shaft is fixedly connected with the bottom end of the crushing box (3); an exhaust pipe (17) is installed on one side face of the protective box (4), a second circular frame (13) is fixedly connected to the inner side face of the exhaust pipe (17), and a first circular frame (12) is rotatably connected to the inner side face of the exhaust pipe (17) in a manner of clinging to the second circular frame (13); cavities are formed in the first circular frame (13) and the second circular frame (12), an annular through groove is formed in one side face of the first circular frame (13), an annular plate is fixedly connected to one side face of the second circular frame (12), the annular plate is rotatably connected with the annular through groove, and a plurality of inflation holes are formed in the annular plate; the inner side surfaces of the first circular frame (12) and the second circular frame (13) are fixedly connected with a plurality of rubber tubes (16), the rubber tubes (16) are communicated with the inner cavity, the rubber tubes (16) are mutually contacted, the rubber tubes (16) are made of elastic materials, the surfaces of the rubber tubes (16) are respectively provided with a polyester coating and a plastic coating, the inner side surfaces of the rubber tubes (16) are provided with elastic connecting nets (19), and the surfaces of the rubber tubes (16) are provided with a plurality of circular holes (1601); the top fixedly connected with second air-blower (11) of exhaust pipe (17), the one end of second air-blower (11) is connected with the connecting pipe, the one end and the inside cavity intercommunication of second circular frame (13) of connecting pipe, the bottom fixedly connected with dust collecting box (18) of exhaust pipe (17), the bottom and the dust collecting box (18) intercommunication of exhaust pipe (17).

2. The concrete circulating crushing device according to claim 1, wherein: filter screen (10) comprise connection column casing (1001) and elasticity rubber hose (1002), a plurality of fumaroles have been seted up on the top of connecting column casing (1001), be provided with a plurality of connection nozzles around connecting column casing (1001), fixed connection has elasticity rubber hose (1002) between the connection nozzle.

3. The concrete circulating crushing device according to claim 1, characterized in that: the side of broken case (3) has seted up the circulation mouth, the medial surface of circulation mouth is provided with the internal thread, the medial surface threaded connection of circulation mouth has circulation case (2).

4. The concrete circulating crushing device according to claim 1, characterized in that: the lateral surface fixedly connected with install bin of broken case, install first air-blower (8) in the install bin, fixedly connected with connecting pipe between first air-blower (8) and the connection nozzle.

5. The concrete circulating crushing device according to claim 1, wherein: a plurality of feed inlets have been seted up on the top of guard box (4), the top of guard box (4) articulates there is the closing plate.

6. The concrete circulating crushing device according to claim 1, characterized in that: the inner side surface of the exhaust pipe (17) is rotatably connected with a third circular frame (14), a windmill (15) is installed in the third circular frame (14), and a plurality of connecting shafts are fixedly connected between the third circular frame (14) and the first circular frame (12).