CN110898963B - Recycled concrete aggregate screening system - Google Patents
Recycled concrete aggregate screening system Download PDFInfo
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- CN110898963B CN110898963B CN201911207934.1A CN201911207934A CN110898963B CN 110898963 B CN110898963 B CN 110898963B CN 201911207934 A CN201911207934 A CN 201911207934A CN 110898963 B CN110898963 B CN 110898963B
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- screening
- bin
- feeding
- conveyor
- conveying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a recycled concrete aggregate screening system which comprises a material conveying device, wherein the tail end of the material conveying device is connected with a feeding bin, the feeding bin is communicated with a screening bin, the feeding bin comprises a plurality of screening cavities, the screening cavities are sequentially distributed at intervals along the length direction of the screening bin, a plurality of screen holes with the same diameter are formed in the bottom of the screening cavities, the screen holes of different screening cavities are sequentially enlarged from the front end to the tail end of the screening bin, aggregate is conveyed from the feeding bin to the tail end of the screening bin by a material conveying auger, conveying devices are respectively arranged below the different screening cavities, and the different conveying devices are connected with different brick-concrete separation equipment. The invention screens the crushed aggregates in grades, conveys the aggregates to brick-concrete aggregate separation equipment for separation, and finally separates out the single brick aggregates and concrete aggregates for use, the economic benefit of the single use of the brick aggregates and the concrete aggregates is far greater than that of the mixed aggregates, and the brick aggregates and the concrete aggregates can be used as substitutes of the coarse aggregates of the concrete.
Description
Technical Field
The invention relates to the field of construction waste treatment engineering, in particular to a recycled concrete aggregate screening system capable of simultaneously separating brick aggregates and concrete aggregates.
Background
With the continuous acceleration of the urbanization process of the country, the quantity of construction waste in cities is rapidly increased. People can enjoy urban civilization and suffer from the trouble caused by urban garbage. At present, the demand of China for building materials is continuously increased in urbanization development, and corresponding raw material collection is also reduced in China, so that the price of building resources is continuously increased and the resource exploitation is increasingly difficult.
The traditional general method for treating construction waste mainly comprises two methods: firstly, the land is filled, so that the land is occupied, the environment is polluted, and the effective regeneration and utilization cannot be realized; secondly, the construction waste is utilized to carry out crushing, primary screening and grading on aggregates according to the size of the material diameter, then corresponding processes are carried out on different aggregates, and the aggregates are further utilized again, most of the processes are adopted on the market, equipment of manufacturers is researched and developed aiming at the production processes, but the processes have the following defects: 1. the sorted brick aggregate and concrete aggregate are mixed together, and are generally difficult to be used as building aggregate substitutes, and the economic benefit generated by using the mixed aggregate to prepare bricks is low.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a recycled concrete aggregate screening system which can separate brick aggregates and concrete aggregates simultaneously when the crushed aggregates are graded.
In order to achieve the technical effects, the invention adopts the following scheme:
a recycled concrete aggregate screening system comprises a feeding device, wherein a feeding bin is arranged at the tail end of the feeding device, a feeding hole is formed above the feeding bin, the feeding hole is positioned below the tail end of the feeding device, the feeding bin is connected with a screening bin, the feeding bin and the screening bin are arranged on a machine frame, the front end of the screening bin in the length direction is communicated with the feeding bin, the front end and the tail end of the screening bin are communicated, the feeding bin comprises a plurality of screening cavities which are sequentially distributed at intervals along the length direction of the screening bin, a plurality of screen holes with equal diameters are formed in the bottom of the screening cavities, the screen holes of different screening cavities are sequentially enlarged from the front end to the tail end of the screening bin, the feeding bin and the screening bin are internally provided with the same material conveying auger, one end of the material conveying auger is positioned on the side wall of the feeding bin, the other end of the material conveying auger extends out of the tail end of the screening bin and then, one end of the conveying auger is connected with a driving motor, conveying devices are respectively arranged below different screening cavities, the screening system further comprises a plurality of brick concrete separation devices, each conveying device is connected with one brick concrete separation device, and the plurality of conveying devices convey the screened aggregates with different particle sizes to different brick concrete separation devices for separation.
According to the preferable technical scheme, the screening bin adopts a roller, the screen holes are arranged around the roller, the roller is rotatably connected with the feeding bin, the roller is rotatably connected with the rack, the roller is driven to rotate by a motor, the rotating direction is opposite to the rotating direction of the conveying auger, or the rotating direction is consistent with the rotating direction of the conveying auger but the rotating speed is less than the rotating speed of the conveying auger.
According to the preferable technical scheme, a connecting bearing is installed on the inner wall of the front end of the roller, a communicating hole is formed in the side wall of the feeding bin, the edge of the communicating hole protrudes outwards to form a connecting pipe surrounding the communicating hole, and the outer side wall of the connecting pipe is fixedly installed on the inner side wall of the connecting bearing; the cover is equipped with the second bearing on the cylinder, and the lateral wall fixed mounting of cylinder is on the inside wall of second connection bearing, and the lateral wall fixed mounting of second connection bearing is in the frame.
According to the preferred technical scheme, one end, far away from the feeding bin, of the connecting pipe extends into the roller and then expands around the connecting pipe to form flaring with gradually increased diameter, and the end part of the flaring is close to the inner wall of the roller.
According to the preferred technical scheme, the driven gear is arranged on the roller in a surrounding mode, the driving gear is arranged on a rotating shaft of the motor and is connected with the driven gear through a chain, or the driving gear is connected with the driven gear in a matched mode.
According to the preferable technical scheme, the conveying device is a second conveying belt, the conveying belt is in a grid shape, the pore size of the grid is consistent with the pore size of a previous screening cavity of the screening cavity corresponding to the conveying belt, and the conveying belt is connected with a vibrating device to vibrate the conveying belt.
According to the preferable technical scheme, a second conveying device arranged along the second conveying belt is arranged below the second conveying belt, the second conveying device is used for conveying aggregates screened by the second conveying belt to a material conveying device for screening again, and the second conveying device is a third conveying belt.
According to the preferred technical scheme, the material conveying device adopts the first conveying belt.
According to the preferable technical scheme, a second material conveying device is arranged below the tail end of the screening bin, the second material conveying device conveys residual aggregate discharged from the tail end of the screening bin to the material conveying device for screening again, and the second material conveying device is a fourth conveying belt.
According to the preferred technical scheme, the tail end of the material conveying device is connected with a feeding bin through a funnel; a feeding funnel is arranged below the screening cavities respectively, the size of the upper end of the feeding funnel is larger than the width of the screening bin, and the lower end of the feeding funnel is located above the conveying device and conveys screened aggregate to the conveying device after gathering.
Compared with the prior art, beneficial effect does:
the invention has simple structure and convenient use, screens the crushed aggregates in stages, then conveys the screened mixed brick-concrete aggregates with the same particle size to the brick-concrete aggregate separation equipment for separation, and finally separates out the independent brick aggregates and concrete aggregates for use.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The utility model provides a recycled concrete aggregate screening system, including the feeding device, the feeding device adopts first conveyer belt, the rear end of first conveyer belt is equipped with the feeding storehouse (the initiating terminal of first conveyer belt on direction of delivery is the front end of first conveyer belt, the terminal is the rear end of first conveyer belt), the top of feeding storehouse is equipped with the feed inlet, the feed inlet top is equipped with the funnel, the below and the feed inlet intercommunication of funnel, the funnel is located the below of the rear end of first conveyer belt, carry the aggregate after the breakage to the funnel through first conveyer belt and fall into in the feeding storehouse.
One side of feeding storehouse is connected with the screening storehouse, screening storehouse and feeding storehouse intercommunication, the screening storehouse is connected with the feeding storehouse at its length direction's ascending front end (the one end that the feeding storehouse is connected to the screening storehouse on its length direction is the front end, the one end of keeping away from the feeding storehouse is terminal), the front end and the end in screening storehouse are linked together, the screening storehouse includes a plurality of screening chambeies, a plurality of screening chambeies set up along the length direction interval in proper order in the screening storehouse, the bottom in a plurality of screening chambeies all has a plurality of sifting holes, the aperture of the sieve mesh on the same section screening chamber is unanimous, the sieve mesh aperture on the different screening chambeies is inconsistent, front end to the rear end in screening storehouse along the screening storehouse, the aperture in different screening chambeies increases in proper order, carry out classified screening.
The feeding bin and the screening bin are both mounted on the frame, the same conveying auger is arranged in the feeding bin and the screening bin, one end of the conveying auger is mounted on the side wall of the feeding bin through a bearing, the other end of the conveying auger extends out of the tail end of the screening bin and is mounted on the frame through the bearing, aggregate in the feeding bin is conveyed to the tail end of the screening bin by the conveying auger, the aggregate is graded and screened sequentially through different screening cavities with gradually-increased mesh diameters in the conveying process, the aggregates with different particle sizes are screened, residual aggregate screened by all the screening cavities is discharged from one end, far away from the feeding bin, of the screening bin, and one end of the auger is connected with a driving motor.
The cylinder of both ends intercommunication is preferred to the screening storehouse, and the sieve mesh encircles the cylinder setting, has the intercommunicating pore that matches with the cylinder on the feeding storehouse, and the cylinder rotates with the intercommunicating pore to be connected, rotates to connect and adopts the connection bearing, connects the bearing outside and installs on the inner wall of the front end of cylinder, and the border of the clearing hole in feeding storehouse outwards bulges to form to encircle the connecting pipe that passes through the hole, and the inboard at the connection bearing is installed to the outer wall of connecting pipe.
The connecting pipe stretches into the roller, one end of the connecting pipe stretching into the roller is expanded to the periphery of the connecting pipe to form a flaring with the diameter gradually increased, and the edge of the flaring is close to the inner wall of the roller.
The roller is further provided with a second connecting bearing, the outer wall of the roller is arranged on the inner side wall of the second connecting bearing, the outer side wall of the second connecting bearing is fixedly arranged on the rack, the roller is driven to rotate by a motor, the rotating direction of the bearing is opposite to the rotating direction of the packing auger or the rotating direction of the bearing is the same as the rotating direction of the packing auger, but the rotating speed is less than the rotating speed of the packing auger.
Encircle the cylinder on the lateral wall of cylinder and be equipped with driven gear, be equipped with the driving gear in the pivot of motor, driven gear passes through the chain and connects driven gear, perhaps the driving gear matches with driven gear, and the driving gear is connected with driven gear direct fit.
The screening system is also provided with a plurality of brick concrete separation devices, the tail ends of the plurality of conveying devices are respectively provided with a brick concrete separation device, the screening cavities with different specifications respectively correspond to one brick concrete separation device, the screened aggregates with different particle sizes are sent to different brick concrete separation devices for separating brick aggregates from concrete aggregates, and the conveying devices adopt second conveying belts.
The brick concrete separation equipment adopts the equipment in the prior art, such as: building garbage recycled aggregate brick concrete separation equipment recorded in item (2012KTCQ03-09) of major products (group) of emerging industry strategic in Shanxi province science and technology integrated innovation engineering plan in 2012.
The second conveyer belt is latticed, and the aperture of net is unanimous with the sieve mesh aperture in the preceding screening chamber in the screening chamber that this second conveyer belt corresponds, is equipped with vibrating device on the second conveyer belt, drives the second conveyer belt and produces the vibration at transportation process and further screens. Because the screening chamber probably screens incompletely, has carried the aggregate of small particle size to the rear portion in screening the storehouse and has mixed together with the aggregate of large particle size, consequently can have the aggregate of small particle size in the aggregate after the screening, consequently screens off the aggregate of small particle size through screening once more, because the vibration can be with the aggregate tiling on the screening area, has reduced the aggregate and has piled up, does benefit to screening off the aggregate of small particle size.
And a second conveying device is arranged below the second conveying belt, the second conveying device is arranged along the length of the second conveying belt, the second conveying device is a third conveying belt, the third conveying belt receives the small-particle-size aggregate after screening, and the small-particle-size aggregate is conveyed to the conveying device and enters the screening system again.
And the lower part of one end of the screening bin, which is far away from the feeding bin, is provided with a second material conveying device, the second material conveying device conveys residual aggregate discharged from the screening bin to the material conveying device for screening again, and the second material conveying device is a fourth conveying belt.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, as well as the orientations and positional relationships conventionally used in the product of the present invention or as would be understood by those skilled in the art, are used for convenience in describing and simplifying the present invention, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (9)
1. A recycled concrete aggregate screening system is characterized by comprising a feeding device, wherein the tail end of the feeding device is provided with a feeding bin, a feeding hole is formed above the feeding bin, the feeding hole is positioned below the tail end of the feeding device, the feeding bin is connected with a screening bin, the feeding bin and the screening bin are installed on a machine frame, the front end of the screening bin in the length direction is communicated with the feeding bin, the front end and the tail end of the screening bin are communicated, the screening bin comprises a plurality of screening cavities which are sequentially distributed at intervals along the length direction of the screening bin, the bottom of each screening cavity is provided with a plurality of screen holes with the same diameter, the screen holes of different screening cavities are sequentially enlarged from the front end to the tail end of the screening bin, the feeding bin and the screening bin are internally provided with the same material conveying auger, one end of the material conveying auger is positioned on the side wall of the feeding bin, the other end of the material conveying auger extends out of the tail end of the screening bin and, one end of the conveying auger is connected with a driving motor, conveying devices are respectively arranged below different screening cavities, the screening system further comprises a plurality of brick concrete separation devices, each conveying device is connected with one brick concrete separation device, the selected aggregates with different particle sizes are conveyed to the different brick concrete separation devices for separation by the plurality of conveying devices, each conveying device is a second conveying belt, the conveying belts are latticed, the pore sizes of the grids are consistent with the pore sizes of the sieve pores in the previous screening cavities of the screening cavities corresponding to the conveying belts, the conveying belts are connected with vibrating devices to vibrate the conveying belts, and secondary screening is performed through vibration.
2. The recycled concrete aggregate screening system of claim 1, wherein the screening chamber comprises a drum, the screen openings are disposed around the drum, the drum is rotatably connected to the feed chamber, the drum is rotatably connected to the frame, the drum is rotated by the motor in a direction opposite to that of the feeding auger or in a direction identical to that of the feeding auger but at a rotational speed less than that of the feeding auger.
3. The recycled concrete aggregate screening system of claim 2, wherein the inner wall of the front end of the roller is provided with a connecting bearing, the side wall of the feeding bin is provided with a communicating hole, the edge of the communicating hole protrudes outwards to form a connecting pipe surrounding the communicating hole, and the outer side wall of the connecting pipe is fixedly arranged on the inner side wall of the connecting bearing; the cover is equipped with the second bearing on the cylinder, and the lateral wall fixed mounting of cylinder is on the inside wall of second connection bearing, and the lateral wall fixed mounting of second connection bearing is in the frame.
4. The recycled concrete aggregate screening system of claim 3, wherein the end of the connecting pipe away from the feeding bin extends into the roller and then expands to form a flared opening with gradually increasing diameter around the connecting pipe, and the end of the flared opening is close to the inner wall of the roller.
5. The recycled concrete aggregate screening system of claim 2, wherein the drum is provided with a driven gear around the drum, the rotating shaft of the motor is provided with a driving gear, and the driving gear is connected with the driven gear through a chain or the driving gear is connected with the driven gear in a matching way.
6. The recycled concrete aggregate screening system of claim 1, wherein a second conveyor is provided along the second conveyor below the second conveyor, the second conveyor being adapted to convey aggregate screened by the second conveyor to the conveyor for further screening, the second conveyor being a third conveyor.
7. The recycled concrete aggregate screening system of claim 1, wherein the conveying means comprises a first conveyor belt.
8. The recycled concrete aggregate screening system of claim 1, wherein a second conveyor is provided below the end of the screening silo, the second conveyor conveys the remaining aggregate discharged from the end of the screening silo to the conveyor for screening again, and the second conveyor is a fourth conveyor.
9. The recycled concrete aggregate screening system of claim 1, wherein the end of the feeding device is connected to the feeding bin through a hopper; a feeding funnel is arranged below the screening cavities respectively, the size of the upper end of the feeding funnel is larger than the width of the screening bin, and the lower end of the feeding funnel is located above the conveying device and conveys screened aggregate to the conveying device after gathering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911207934.1A CN110898963B (en) | 2019-11-30 | 2019-11-30 | Recycled concrete aggregate screening system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911207934.1A CN110898963B (en) | 2019-11-30 | 2019-11-30 | Recycled concrete aggregate screening system |
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| Publication Number | Publication Date |
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| CN110898963A CN110898963A (en) | 2020-03-24 |
| CN110898963B true CN110898963B (en) | 2021-05-18 |
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| CN201911207934.1A Active CN110898963B (en) | 2019-11-30 | 2019-11-30 | Recycled concrete aggregate screening system |
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| CN108499717A (en) * | 2018-03-28 | 2018-09-07 | 合肥欣畅源光电科技有限公司 | Building waste aggregate method for separating |
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| CN109078830A (en) * | 2018-06-30 | 2018-12-25 | 安龙县喜莱莹建材装饰有限公司 | A kind of building stones process equipment having separation function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1669756A (en) * | 2004-03-15 | 2005-09-21 | 贺绍瑜 | Method for manufacturing rotatively wrapped concrete granules by mechanical extrusion molding of cement and multiple aggregates |
| CN107119187B (en) * | 2017-05-18 | 2018-08-28 | 天津瑞利鑫环保科技有限公司 | A kind of dedusting ash cold-consolidated ball production system and technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3716895A1 (en) * | 1985-05-06 | 1987-12-03 | Hakon Kjernsbekk | STONE BREAKER |
| CN2799095Y (en) * | 2005-04-27 | 2006-07-26 | 竹山县鑫源皂素有限责任公司 | Circular sieve |
| WO2009105752A2 (en) * | 2008-02-22 | 2009-08-27 | Fecon, Inc. | Apparatus and method for land clearing and preparation |
| CN105436067A (en) * | 2015-11-12 | 2016-03-30 | 西南石油大学 | Continuously-circulating screen vibrating sieve |
| CN108499717A (en) * | 2018-03-28 | 2018-09-07 | 合肥欣畅源光电科技有限公司 | Building waste aggregate method for separating |
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