CN112473985A

CN112473985A - Environment-friendly waste building material recovery and treatment device and working principle thereof

Info

Publication number: CN112473985A
Application number: CN202011243250.XA
Authority: CN
Inventors: 钟桂; 何启松; 孙习伟; 易秋珍
Original assignee: Changde Yiju Building Material Co ltd
Current assignee: Chongyi County Concrete Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-03-12
Anticipated expiration: 2040-11-09
Also published as: CN112473985B

Abstract

The invention provides an environment-friendly waste building material recovery and treatment device and a working principle thereof, the environment-friendly waste building material recovery and treatment device comprises a device main body, the upper end surface of the device main body is communicated with a feeding port, the lower end surface of the device main body is fixedly connected with a supporting bracket, the edge of the upper end surface of the device main body is fixedly connected with a liquid storage tank, the lower end surface of the device main body is respectively embedded with a first material collecting box, a second material collecting box and a third material collecting box, the upper end surface of the device main body is fixedly connected with a crushed material pipe, a rotary filter screen is rotatably connected between the device main body and the crushed material pipe, a first roller screen is rotatably connected inside the device main body and communicated with the feeding port, the device can be used for multi-stage recovery of waste building materials, and the waste building materials are recycled after being subjected to screening and grading treatment.

Description

Environment-friendly waste building material recovery and treatment device and working principle thereof

Technical Field

The invention relates to the technical field of waste building material treatment equipment, in particular to an environment-friendly waste building material recovery treatment device and a working principle thereof.

Background

The waste building materials are continuously accumulated to form the building garbage which is the general name of dregs, waste concrete, waste bricks and stones and other wastes generated in the production activities of the building industries such as demolition, construction, decoration, repair and the like. The construction waste can be classified into engineering residue soil, decoration waste, demolition waste, engineering slurry and the like according to the production source; the construction waste can be classified into slag, concrete blocks, broken stone blocks, broken bricks and tiles, waste mortar, slurry, asphalt blocks, waste plastics, waste metals, waste bamboo and wood and the like according to the composition.

The quantity of the construction waste in China accounts for 30 to 40 percent of the total quantity of the urban waste. Calculated according to the standard of 500-00 tons per ten thousand square meters, by 2020, China is additionally provided with about 300 hundred million square meters of building area, and newly generated building garbage is a shocking number. However, most of the construction wastes are not treated, and are transported to suburbs or villages by construction units for open-air stacking or landfill, so that a large amount of construction expenses such as land acquisition expenses and garbage cleaning and transporting expenses are consumed, and meanwhile, the problems of scattering, dust, sand and ash flying in the cleaning and stacking processes cause serious environmental pollution

And then need design one kind to carry out recycle's device in abandonment building materials, current abandonment building materials recovery unit often only is simple broken back, retrieves as filling crushed aggregates, and doping material more has multiple material such as building stones, dust saw-dust in this kind of crushed aggregates, and applicable field is limited, is difficult to reach the function of high-efficient recovery that becomes more meticulous, and the actual recovery effect is not good enough, and produces the dust easily in the crushing process and causes secondary pollution to the surrounding environment.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an environment-friendly waste building material recovery and treatment device and a working principle thereof, and aims to solve the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an environment-friendly waste building material recycling device comprises a device main body, wherein the upper end face of the device main body is communicated with a feeding port, the lower end face of the device main body is fixedly connected with a supporting bracket, the edge of the upper end face of the device main body is fixedly connected with a liquid storage tank, a first material collecting tank, a second material collecting tank and a third material collecting tank are respectively embedded in the lower end face of the device main body, a crushed material pipe is fixedly connected to the upper end face of the device main body, a rotating filter screen is rotatably connected between the device main body and the crushed material pipe, a first roller screen is rotatably connected inside the device main body and communicated with the feeding port, a first conveying belt is arranged below the first roller screen, the tail end of the first conveying belt is communicated with the inside of the third material collecting tank, the tail end of the first roller screen is communicated with the second conveying belt, and the tail end of the crushed material pipe is communicated with a crushed material machine, the output end of the material crushing machine is communicated with a second roller sieve, a second conveying belt is arranged below the second roller sieve, the tail ends of the second roller sieve are communicated with a crusher, the tail end of the second conveying belt is communicated with the inside of a third material collecting box, the output end of the crusher is communicated with the second material collecting box, a first material collecting box is fixedly installed on one side of the side end face of the second material collecting box, the second material collecting box is communicated with the first material collecting box through an overflow port, a drainage pipeline is arranged at the bottom of one side end face of the second material collecting box, which is far away from the first material collecting box, the other end of the drainage pipeline is communicated with the third material collecting box, electric heating plates are fixedly connected to two sides of the inner wall of the third material collecting box, a drainage fan is embedded in the inner wall of one side, which is far away from the first conveying belt, and is communicated to the inside of the first material, the liquid storage tank is provided with a guide pipe extending to the inside of the atomizing spray head and the second material collecting box.

Preferably, the one end that rotates the filter screen and links to each other with the atomizer inner wall is equipped with the axis of rotation, it just to rotate the one side bottom that the filter screen deviates from the axis of rotation and is connected with the transmission shaft links to each other with the transmission of rotation motor through connecting the knee lever.

Preferably, the device main body is internally provided with a fixed chute matched with the transmission shaft.

Preferably, the eight groups of the atomizing nozzles are uniformly distributed above the atomizing nozzles and the second roller screen.

Preferably, the side end face one side that deviates from the second case that gathers materials of first case that gathers materials is equipped with return line, return line's inside is equipped with superfine filter screen, return line's the other end is linked together with the liquid reserve tank, just return line drives through the pressure pump.

Preferably, the pressure pump is also arranged in the middle of the drainage pipeline.

Preferably, the middle part of the second material collecting box is fixedly provided with a filtering and settling device.

Preferably, the filtering and settling device is a funnel-shaped material collecting plate, the area of the bottom of the material collecting plate is small, and the bottom of the material collecting plate is provided with filtering holes.

Preferably, the device main part and the upper end face of the crushed material pipe are fixedly provided with driving motors, and the driving motors are connected with the first roller screen and the second roller screen in a transmission mode.

Still include an environment-friendly abandonment building materials recovery processing device theory of operation: waste building materials are put into a device from a feeding port, the materials after being put are roughly divided into crushed aggregates and powder materials through a rotary filter screen, the crushed aggregates fall into a crushing machine along with a crushed aggregate pipe to be further crushed, the powder materials are further filtered through a first roller screen, dust falls into a first conveying belt to be conveyed into a third collecting box in the filtering process, filtered fine materials fall into a second conveying belt, the crushed materials physically enter a second roller screen to be further screened after being crushed by the crushing machine, the second roller screen screens the materials, the fine materials generated by screening fall into the third collecting box along with the second conveying belt to be collected, granular materials fall into a crusher along with the second roller screen to be further ground, the ground materials fall into the second collecting box to be subjected to water leaching separation, lighter materials are conveyed into the first collecting box along with water flow, heavier materials gradually settle in a filtering sedimentation device and then are divided into a crushed aggregate layer and a fine sand layer at the bottom, fine sand is then carried to the third in the case that gathers materials through the drainage pipeline, the rubble is then saved in the second case that gathers materials, inlay at the inner wall of third case that gathers materials simultaneously and be equipped with the drainage fan, powder and fine material when falling into the third case that gathers materials lighter particulate matter dust or piece are carried to first case that gathers materials through the drainage fan along with the air current and are met the inside that the water back subsides to first case that gathers materials, constantly spout water smoke at the atomizer of its top of first gyro wheel sieve and second gyro wheel sieve stirring in-process, avoid dust to fly and dance, and be equipped with the backward flow pipeline in the one end of first case that gathers materials, the backward flow pipeline passes through pressure pump and liquid reserve tank backward flow, realize the cyclic utilization of rivers.

(III) advantageous effects

The invention provides an environment-friendly waste building material recovery and treatment device and a working principle thereof, and the device has the following beneficial effects: the device is used for separating and carrying out corresponding classified collection after multi-stage screening on various substances in building waste materials, the building waste materials are subjected to primary separation through a support bracket after being put into a material inlet, the primary separation is carried out by considering that the primary separation contains larger materials which easily block a filter screen and then a rotating motor is arranged to drive the rotating filter screen to rise along a rotating shaft through a connecting curved rod and a transmission shaft, so that the larger materials above the primary separation fall into a crushed material pipe to avoid blocking and reduce the efficiency, the materials are filtered by a first roller screen and crushed by a crushing machine after being subjected to first-step separation, the crushed materials are continuously subjected to double-filtering by a second roller screen, crushed materials and powder in the materials can be effectively separated by using the first roller screen and the second roller screen, the classified crushed materials fall into a crusher to further crush proper particle size, the powder is collected in a third material collecting box, and a drainage fan is embedded in the inner wall of the third, the drainage fan conveys dust and sawdust impurities in powder to the first aggregate box through air flow for sedimentation, residual materials in the third aggregate box can be used as high-quality fine particle fillers, building waste materials possibly contain wood blocks and other substances after being crushed by the crusher and are difficult to remove through screening, namely, the materials are subjected to flotation through the second aggregate box, lighter materials flow into the first aggregate box through an overflow port, the stone materials heavily fall into the filtering and sedimentation device and are subjected to particle size screening through the filtering and sedimentation device, the fine materials with lower particle sizes flow back into the third aggregate box through the drainage pipeline, meanwhile, the first aggregate box internally contains more dust and sawdust and can be used as high-quality soil waste materials after part of zymogens are put into fermentation, the device realizes multi-stage separation and utilization of the building waste materials, and maximally realizes reutilization of the building waste materials, simultaneously at the inside atomizer that is equipped with of device, the atomizer effectively avoids filtering the dust of screening in-process and stretchs, and is equipped with the liquid reserve tank in the device, and the liquid reserve tank provides rivers for second collection workbin flotation, and rivers flow back through return line, realize the repeated reuse of water resource, further improve equipment feature of environmental protection.

Drawings

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

fig. 2 is a schematic structural view of a fixing bracket of the present invention.

In the figure: 1 pan feeding mouth, 2 driving motor, 3 liquid storage tanks, 4 return lines, 5 first material collecting box, second material collecting box, 7 third material collecting box, 8 support frame, 9 device main parts, 10 atomizer, 11 crushed material pipe, 12 first roller sieve, 13 crushed material machine, 14 second roller sieve, 15 delivery air pipes, 1 force pump, 17 overflow mouth, 18 filter settlement device, 19 drainage pipeline, 20 rubbing crusher, 21 drainage fan, 22 electric heat board, 23 second conveyer belt, 24 first conveyer belt, 25 rotation motor, 2 connection curved bar, 27 transmission shafts, 28 rotation filter screen.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The embodiment of the invention provides an environment-friendly waste building material recycling device, which comprises a device main body 9, wherein the upper end surface of the device main body 9 is communicated with a feeding port 1, the lower end surface of the device main body 9 is fixedly connected with a supporting bracket 8, the edge of the upper end surface of the device main body 9 is fixedly connected with a liquid storage tank 3, the lower end surface of the device main body 9 is respectively embedded with a first material collecting tank 5, a second material collecting tank and a third material collecting tank 7, the upper end surface of the device main body 9 is fixedly connected with a crushed material pipe 11, a rotary filter screen 28 is rotatably connected between the device main body 9 and the crushed material pipe 11, the interior of the device main body 9 is rotatably connected with a first roller screen 12, the first roller screen 12 is communicated with the feeding port 1, a first conveying belt 24 is arranged below the first roller screen 12, the tail end of the first conveying belt 24 is communicated with the interior of the third material collecting tank 7, the tail, the tail end of the crushed material pipe 11 is communicated with a crusher 13, the output end of the crusher 13 is communicated with a second roller screen 14, a second conveying belt 23 is arranged below the second roller screen 14, the tail ends of the second roller screens 14 are communicated with a crusher 20, the tail end of the second conveying belt 23 is communicated with the inside of a third material collecting box 7, the output end of the crusher 20 is communicated with the second material collecting box, a first material collecting box 5 is fixedly arranged on one side of the side end face of the second material collecting box, the second material collecting box is communicated with the first material collecting box 5 through an overflow port 17, a drainage pipeline 19 is arranged at the bottom of one side end face of the second material collecting box, which is far away from the first material collecting box 5, the other end of the drainage pipeline 19 is communicated with the third material collecting box 7, electric heating plates 22 are fixedly connected to two sides of the inner wall of the third material collecting box 7, a drainage fan 21 is embedded in the inner wall of one side of the third material collecting box 7, which is far, the liquid storage tank 3 is provided with a guide pipe which extends to the inside of the atomizing nozzle 10 and the second material collecting tank.

11. One end of the rotary filter screen 28 connected with the inner wall of the atomizing spray head 10 is provided with a rotating shaft, the bottom of one side of the rotary filter screen 28 departing from the rotating shaft is rotatably connected with a transmission shaft 27, the transmission shaft 27 is in transmission connection with a rotary motor 25 through a connecting curved rod 2, the inside of the device main body 9 is provided with a fixed chute matched with the transmission shaft 27, the atomizing spray head 10 has eight groups, the eight groups are uniformly distributed above the atomizing spray head 10 and the second roller screen 14, one side of the side end face of the first material collecting box 5 departing from the second material collecting box is provided with a return pipeline 4, the inside of the return pipeline 4 is provided with a superfine filter screen, the other end of the return pipeline 4 is communicated with the liquid storage box 3, the return pipeline 4 is driven by a pressure pump 1, the pressure pump 1 is also arranged in the middle of a drainage pipeline 19, the middle of the second, and the area of the bottom of the collecting plate is small, the bottom of the collecting plate is provided with filter holes, the upper end faces of the device main body 9 and the crushed material pipe 11 are fixedly provided with the driving motor 2, and the driving motor 2 is in transmission connection with the first roller sieve 12 and the second roller sieve 14.

Still include an environment-friendly abandonment building materials recovery processing device theory of operation: waste building materials are put into the device from a material inlet 1, the materials after being put are roughly divided into crushed materials and powder materials through a rotary filter screen 28, the crushed materials fall into a crushing machine 13 along with a crushed material pipe 11 to be further crushed, the powder materials are further filtered through a first roller screen 12, dust falls into a first conveyer belt 24 during the filtering process and is conveyed into a third material collecting box 7, the filtered fine materials fall into a second conveyer belt 23, the crushed materials physically enter a second roller screen 14 to be further screened after being crushed by the crushing machine 13, the second roller screen 14 screens the materials, the fine materials generated by screening fall into the third material collecting box 7 along with the second conveyer belt 23 to be collected, granular materials fall into a crusher 20 along with the second roller screen 14 to be further ground, the ground materials fall into a second material collecting box to be subjected to water leaching separation, lighter materials are conveyed into the first material collecting box 5 along with water, heavier materials gradually settle in a filtering settling device 18 and are divided into a crushed stone layer and a fine sand layer at the bottom, fine sand is then carried to third case 7 that gathers materials through drainage pipeline 19 in, the rubble is then the storage in the second case that gathers materials, inlay at the inner wall of third case 7 that gathers materials simultaneously and be equipped with drainage fan 21, powder and fine material are carried to first case 5 that gathers materials in the chance of meeting water through drainage fan 21 with the air current in lighter particulate matter dust or piece when falling into third case 7 that gathers materials and subsides to the inside of first case 5 that gathers materials, the atomizer 10 of its top is constantly spouted water smoke in first gyro wheel sieve 12 and second gyro wheel sieve 14 stirring process, avoid dust to fly in the dance, and be equipped with return line 4 in the one end of first case 5 that gathers materials, return line 4 passes through force pump 1 and the backward flow of liquid reserve tank 3, realize the cyclic utilization of rivers.

In conclusion, the device performs multi-stage screening and then separation and corresponding classified collection on various substances in building waste materials, the building waste materials are subjected to preliminary separation through the support bracket 8 after being put into the material inlet 1, the preliminary separation is considered that the larger materials contained in the preliminary separation easily block a filter screen, the rotary motor 25 is further arranged to drive the rotary filter screen 28 to rise along the rotary shaft through the connecting bent rod 2 and the transmission shaft 27, so that the larger materials above the preliminary separation fall into the crushed material pipe 11 to avoid blocking and reduce efficiency, the materials are filtered through the first roller screen 12 and crushed through the crusher 13 after the first step separation, the crushed materials continue to be subjected to double filtration through the second roller screen 14, crushed materials and powder in the materials can be effectively separated through the first roller screen 12 and the second roller screen 14, the crushed materials after classification fall into the crusher 20 to further crush proper particle size, and the powder is collected in the third material collecting box 7, meanwhile, a drainage fan 21 is embedded in the inner wall of the third material collecting box 7, the drainage fan 21 conveys dust and sawdust impurities in powder to the first material collecting box 5 through air flow for sedimentation, the rest materials in the third material collecting box 7 can be used as high-quality fine particle fillers, after being crushed by the crusher 20, the building waste materials are difficult to remove through screening because the building waste materials possibly contain wood blocks and other substances, namely, the building waste materials are subjected to flotation through the second material collecting box, the lighter materials flow into the first material collecting box 5 through an overflow port 17, the stone materials are heavier and fall into the filtering and sedimentation device 18, the stone materials are subjected to particle size screening through the filtering and sedimentation device 18, the fine materials with lower particle sizes flow back into the third material collecting box 7 through a drainage pipeline 19, meanwhile, the first material collecting box 5 contains more dust and sawdust, and can be used as high-quality soil waste materials after part of zymogens are put into fermentation, the device has realized the multistage separation of construction waste and has utilized, the maximize realization the recycle of construction waste, be equipped with atomizer 10 in the device inside simultaneously, atomizer 10 effectively avoids filtering the dust of screening in-process to stretch, and is equipped with liquid reserve tank 3 in the device, and liquid reserve tank 3 provides rivers for second collection case flotation, and rivers flow back through backflow pipeline 4, realize the repeated recycle of water resource, further improve equipment feature of environmental protection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an environment-friendly abandonment building materials recovery processing device, includes device main part (9), its characterized in that: the device is characterized in that the upper end face of the device main body (9) is communicated with a feeding port (1), the lower end face of the device main body (9) is fixedly connected with a supporting bracket (8), the upper end face edge of the device main body (9) is fixedly connected with a liquid storage tank (3), the lower end face of the device main body (9) is respectively embedded with a first material collecting tank (5), a second material collecting tank () and a third material collecting tank (7), the upper end face of the device main body (9) is fixedly connected with a crushed material pipe (11), a rotary filter screen (28) is rotatably connected between the device main body (9) and the crushed material pipe (11), the interior of the device main body (9) is rotatably connected with a first roller screen (12), the first roller screen (12) is communicated with the feeding port (1), a first conveying belt (24) is installed below the first roller screen (12), and the tail end of the first conveying belt (24) is communicated with the interior of the third material collecting tank (7), the tail end of the first roller screen (12) is communicated with a second conveying belt (23), the tail end of the crushed material pipe (11) is communicated with a crusher (13), the output end of the crusher (13) is communicated with a second roller screen (14), a second conveying belt (23) is arranged below the second roller screen (14), the tail ends of the second roller screen (14) are communicated with a crusher (20), the tail end of the second conveying belt (23) is communicated with the inside of a third material collecting box (7), the output end of the crusher (20) is communicated with a second material collecting box (), a first material collecting box (5) is fixedly installed on one side end face side of the second material collecting box (), the second material collecting box () is communicated with the first material collecting box (5) through an overflow port (17), and a drainage pipeline (19) is arranged at the bottom of one side end face side of the second material collecting box () deviating from the first material collecting box (5), the other end and the third of drainage pipeline (19) gather materials case (7) and be linked together, the third gathers materials the inner wall both sides fixedly connected with electric plate (22) of case (7), the third gathers materials case (7) deviates from first conveyer belt (24) one side inner wall and inlays and be equipped with drainage fan (21), drainage fan (21) communicate to the inside of first case (5) that gathers materials through carrying tuber pipe (15), liquid reserve tank (3) are equipped with the inside that the pipe extends to atomizer (10) and second case () that gathers materials.

2. The environment-friendly waste building material recycling device as claimed in claim 1, wherein: rotate filter screen (28) and atomizer (10) inner wall and link to each other one end and be equipped with the axis of rotation, rotate filter screen (28) and deviate from one side bottom rotation of axis of rotation and be connected with transmission shaft (27) just transmission shaft (27) link to each other with rotation motor (25) transmission through connecting curved bar (2).

3. The environment-friendly waste building material recycling device as claimed in claim 2, wherein: the device main body (9) is internally provided with a fixed sliding chute matched with the transmission shaft (27).

4. The environment-friendly waste building material recycling device as claimed in claim 1, wherein: eight groups of atomizing nozzles (10) are uniformly distributed above the atomizing nozzles (10) and the second roller screen (14).

5. The environment-friendly waste building material recycling device as claimed in claim 1, wherein: the side end face one side that deviates from second collection workbin () of first collection workbin (5) is equipped with return line (4), the inside of return line (4) is equipped with superfine filter screen, the other end and liquid reserve tank (3) of return line (4) are linked together, just return line (4) drive through force pump (1).

6. The environment-friendly waste building material recycling device as claimed in claim 5, wherein: the pressure pump (1) is also arranged in the middle of the drainage pipeline (19).

7. The environment-friendly waste building material recycling device as claimed in claim 1, wherein: and a filtering and settling device (18) is fixedly arranged in the middle of the second material collecting box ().

8. The environment-friendly waste building material recycling device as claimed in claim 7, wherein: the filtering and settling device (18) is specifically a funnel-shaped material collecting plate, the area of the bottom of the material collecting plate is small, and the bottom of the material collecting plate is provided with filtering holes.

9. The environment-friendly waste building material recycling device as claimed in claim 1, wherein: the device is characterized in that a driving motor (2) is fixedly mounted on the upper end faces of the device main body (9) and the crushed aggregates pipe (11), and the driving motor (2) is in transmission connection with a first roller screen (12) and a second roller screen (14).

10. The utility model provides an environment-friendly abandonment building materials recovery processing device theory of operation which characterized in that: waste building materials are put into a device from a feeding port (1), the materials after being put are roughly divided into crushed materials and powder materials through a rotary filter screen (28), the crushed materials fall into a crushing machine (13) along with a crushed material pipe (11) to be further crushed, the powder materials are further filtered through a first roller screen (12), dust falls into a first conveyer belt (24) in the filtering process and is conveyed into a third material collecting box (7), filtered fine materials fall into a second conveyer belt (23), the crushed materials physically enter a second roller screen (14) to be further screened after being crushed by the crushing machine (13), the second roller screen (14) screens the materials, the fine materials generated by screening fall into the third material collecting box (7) along with the second conveyer belt (23) to be collected, granular materials fall into a crusher (20) along with the second roller screen (14) to be further ground, and the ground materials fall into the second material collecting box () to be subjected to water leaching separation, wherein the lighter materials are conveyed into the first material collecting box (5) along with the water flow, the heavier materials are gradually settled in the filtering and settling device (18) and then divided into a gravel layer and a fine sand layer at the bottom, the fine sand is conveyed into the third material collecting box (7) through the drainage pipeline (19), the gravel is stored in the second material collecting box (), meanwhile, a drainage fan (21) is embedded in the inner wall of the third material collecting box (7), the lighter particulate dust or debris is conveyed into the first material collecting box (5) along with the air flow through the drainage fan (21) when meeting water and then is settled into the first material collecting box (5) when the powder and the fine materials fall into the third material collecting box (7), the water mist is continuously sprayed out by the atomizing nozzles (10) above the first material collecting box (12) and the second material collecting box (14) in the stirring process, dust flying is avoided, and a return pipeline (4) is arranged at one end of the first material collecting box (5), the return pipeline (4) returns with the liquid storage tank (3) through the pressure pump (1), and the water flow is recycled.