CN114345703A - Building garbage screening, light material sorting and dust collecting integrated equipment and method - Google Patents

Abstract

The invention belongs to the technical field of resource utilization of construction waste, and particularly relates to a construction waste screening, light substance sorting and dust collection integrated device and a method, wherein the construction waste screening, light substance sorting and dust collection integrated device comprises: the sorting unit comprises a circulating fan, the circulating fan is communicated with the sorting cavity through an air pipe, the electric butterfly valve is installed on the air pipe, a blowing device is arranged below the bottom side of the sorting cavity, a shunting device is arranged in the middle of the sorting cavity, a regenerated aggregate discharge port and a light material discharge port are arranged at the bottom of the sorting cavity, the blowing device is aligned to the shunting device, and the shunting device is in an inverted cone shape. The invention provides the building garbage screening, light material sorting and dust collection integrated equipment and the method, which are suitable for dry production equipment, adjustable in air quantity, air pressure and air direction, movable in the position of a flow dividing device, capable of adapting to sorting of building garbage with different component proportions by combining a double-layer air inlet and a double-layer adjustable spraying device and capable of remarkably improving sorting efficiency.

Description

Building garbage screening, light material sorting and dust collecting integrated equipment and method

Technical Field

The invention belongs to the technical field of resource utilization of construction waste, and particularly relates to an integrated device and method for screening construction waste, sorting light substances and collecting dust.

Background

The prior art is as follows:

the sorting of the construction waste is an important part for realizing the recycling and reduction of the construction waste, and the construction waste is mixed with some components with low density, such as waste plastics, waste wood, waste paper and the like, so that useful components need to be sorted out and utilized by sorting, and harmful components need to be separated out. The basic principle of sorting is to utilize the difference in physical or chemical properties of materials to separate them.

Common light material sorting and impurity removing means include artificial sorting, hydraulic flotation and air separation.

Hydraulic flotation is generally carried out by feeding construction waste mainly from the middle of the flotation plant, letting some non-floatable heavy material sink to the bottom of the flotation plant and feeding it to a conveyor. Therefore, the water can be conveyed out from one side of the conveying device, and the water needs to be drained in the conveying process; some light impurities will usually float above the water surface and be scraped off by the flotation equipment from the upper paddle arrangement.

The pneumatic separation is to use air as separation medium to separate solid waste into different kinds of waste with certain specific weight and granularity under the action of airflow. The air flow direction mainly includes two types of suction type and blowing type. The suction type air separation is that an air suction opening is arranged in the process of conveying or screening the construction waste, and the light materials and the fine particles are separated by fully utilizing negative pressure. Then, the cyclone dust collector and the bag-type dust collector are fully utilized to really realize the sundries collection. The basic principle used in forced draft air separation is to take some lighter material upwards or further away in a horizontal direction by means of an air stream. Wherein, heavy materials are mainly settled because of the incapability of supporting by ascending airflow, or are thrown out in a horizontal direction for a short distance because of inertia, and light materials are taken away by the airflow, so that the separation of the materials is realized.

However, the present inventors have found that the above prior art has at least the following technical problems:

the hydraulic flotation technology needs to be matched with a complex sewage treatment system, is high in cost, is easy to cause secondary pollution, is limited by water resources, and is not suitable for popularization.

The conventional winnowing equipment has larger volume and higher energy consumption. And a dust collector and a fan are additionally arranged to carry out dust fall treatment on the separation link. The whole system has the disadvantages of complicated flow, low separation efficiency, large occupied area, high energy consumption and high investment. And the air volume, the air pressure, the blowing angle, the partition plate and the like of the conventional sorting equipment are all not adjustable, so that the adaptability of the sorting equipment to different materials is poor.

The difficulty and significance for solving the technical problems are as follows:

therefore, based on the problems of complex flow, low efficiency, more equipment, high energy consumption, large occupied area and poor adaptability of the conventional dry production process, the equipment suitable for dry production is provided, the air volume, the air pressure and the air direction are adjustable, the position of the flow dividing device is movable, and the combination of the double-layer air inlet and the double-layer adjustable injection device can adapt to the separation of the construction wastes with different component proportions, so that the construction waste screening, light material separation and dust collection integrated equipment and method which obviously improve the separation efficiency have important practical significance.

Disclosure of Invention

The application aims to solve the technical problems in the prior art and provide equipment suitable for dry production, the air volume, the air pressure and the air direction are adjustable, the position of the flow dividing device is movable, the combination of the double-layer air inlet and the double-layer adjustable injection device can adapt to the separation of construction waste with different component proportions, and the construction waste screening, light material separation and dust collection integrated equipment and method which obviously improve the separation efficiency are provided.

The technical scheme adopted by the embodiment of the application to solve the technical problems in the prior art is as follows:

the utility model provides a building rubbish screening, light material are selected separately and are collected dust integrated equipment, building rubbish screening, light material are selected separately and are collected dust integrated equipment includes: the sorting unit comprises a sorting cavity and a circulating fan, an injection device is arranged below the bottom of the sorting cavity, the circulating fan is connected with the injection device through an air pipe and a hose, an electric butterfly valve is installed on the air pipe, a shunting device is arranged in the middle of the sorting cavity, a regenerated aggregate discharge port and a light material discharge port are arranged at the bottom of the sorting cavity, the injection device is aligned to the shunting device, and the shunting device is inverted-cone-shaped.

Under the effect of air current, diverging device can be crossed to the material that density is little, and the material that density is big is blockked by diverging device to realize the separation of material. The circulating fan is a variable-frequency circulating fan, and the air quantity and the air pressure are controlled by variable-frequency speed regulation.

The embodiment of the application can also adopt the following technical scheme:

in the above-mentioned building rubbish screening, light material sorting and dust collection integrated equipment, further, the diverging device is arranged in double layers.

The double-layer arrangement of the flow dividing device can separate materials twice, so that the separation rate is improved. Every layer of diverging device frame is equipped with the trompil of 100mm wide 12mm on two diameter 10 mm's steel pipe on selecting separately the chamber casing, and the steel pipe supports on the trompil of selecting separately the chamber casing, and the steel pipe can remove about this within range to fix through the bolt, thereby adjust diverging device's mounted position in a flexible way, with the undulant condition of adaptation building rubbish composition. The separation unit can improve the separation efficiency of the aggregates and the light materials to more than 98 percent.

In the above-mentioned building rubbish screening, light material sorting and integrated equipment that gathers dust, further, the quantity of jetting device is two, and the jetting device adopts flat mouth.

The multi-directional double-layer air inlet is matched with the double-shunt device. The materials are sorted twice in the sorting cavity, so that the separation rate of light materials and construction waste is effectively improved. The blowing device adopts a flat opening design to improve effective contact between air flow and materials, the blowing device is fixed on a rotating shaft made of steel pipes, the rotating shaft is supported on the separation cavity shell, and the rotation of the rotating shaft is controlled by an electric actuator, so that the angle of the blowing device can be adjusted.

In the above-mentioned building rubbish screening, light material are selected separately and are collected dust integrated equipment, further, building rubbish screening, light material are selected separately and are collected dust integrated equipment still includes: a screening unit upstream of the sorting unit, and a dust collecting unit downstream of the sorting unit.

In the above-mentioned building rubbish screening, light material are selected separately and are collected dust integrated equipment, further, the screen cloth of screening unit can produce the vibration under the effect of vibration exciter, sieves the material that gets into the screening unit, and the material that the size is less than the sieve mesh gets into under the sieve, and the material that the size is greater than the sieve mesh gets into next unit, screening unit and sorting chamber import are the same width.

The screening unit realizes the separation of coarse and fine materials. The materials vibrate along with the screen under the action of the vibration exciter, and are gradually dispersed and flattened on the screen in the vibrating and advancing processes.

In foretell building rubbish screening, light material are selected separately and are gathered dust integration equipment, it is further, the unit of gathering dust includes casing, ash bucket, filter bag, pulse ash removal device, screw conveyer, gyration tripper, the filter bag is installed in the casing, pulse ash removal device installs at the casing top, the ash bucket is installed in the filter bag below promptly the casing bottom, screw conveyer installs in the ash bucket bottom, the gyration tripper is installed at the screw conveyer discharge gate.

Dust-containing air flow entering the dust collection unit is collected by the filter bag, and dust is discharged through the dust hopper, the spiral conveyor and the rotary feeder.

In the above-mentioned building rubbish screening, light material sorting and dust collection integrated equipment, further, the air current that goes out of the sorting chamber returns to the sorting chamber after passing through the circulating fan after the dust collection unit removes dust.

And recycling is carried out to realize zero emission of dust.

The building garbage screening, light matter sorting and dust collecting integrated method adopts any one of the building garbage screening, light matter sorting and dust collecting integrated equipment.

In the above method for integrally screening construction waste, sorting light materials and collecting dust, further, the method for integrally screening construction waste, sorting light materials and collecting dust comprises the following steps:

the method comprises the following steps: the construction waste is screened and separated by the screening unit, and the uniform thin layer of the light material is flattened at the tail end of the screen;

step two: the construction waste leaves the screen, the material is injected by the injection device in the falling process, the injection angle of the air flow to the construction waste can be adjusted according to different conditions of the material, the position of the double-layer distribution device is adjusted, the aggregate is discharged from a regenerated aggregate discharge port after separation, and the light material is discharged from a light material discharge port;

the device is used for efficiently separating aggregate and light materials by adjusting the blowing device and the shunting device so as to adapt to the construction wastes of different types and different light material contents;

step three: the dust in the separation cavity is filtered by the filter bag through the negative pressure provided by the circulating fan, the dust is deposited on the surface of the filter bag, is discharged through the spiral conveyer and the rotary feeder after pulse ash removal, and the clean air is discharged through the circulating fan.

One or more technical schemes provided in the embodiment of the application have at least the following beneficial effects:

1. the invention adjusts the air quantity and the air pressure of two layers of air inlets through the variable frequency speed regulation of the fan and the opening degree of a valve on an air pipe, each layer of air inlet corresponds to one layer of blowing device and one layer of flow dividing device, the three aspects are combined, and the two layers work simultaneously to sort materials. The blowing device and the flow dividing device are arranged in a double-layer mode, and materials can be sorted twice. Through the measures, the sorting efficiency is effectively improved to be more than 98%.

2. The blowing device is fixed on a rotating shaft made of a steel pipe, the rotation of the rotating shaft is controlled through the electric actuator, the angle of the blowing device is adjusted, and the air outlet of the blowing device adopts a flat opening, so that the contact area of air flow and materials is effectively enlarged. The shunting device is arranged on two steel pipes, the steel pipes are supported on a separation cavity shell, a long strip-shaped opening is formed in the separation cavity shell, the steel pipes can move left and right within the opening range and are fixed through bolts, and therefore the installation position of the shunting device is flexibly adjusted; the shunting device adopts the design of falling the tapered shape, plays the effect of water conservancy diversion, strengthens the effective jetting region of air current, increases the climbing time of material simultaneously, effectively reduces the regeneration aggregate of small volume and is blown into light material district by the mistake, is more favorable to the separation of light material and regeneration aggregate than conventional vertical baffle.

3. The whole screening, sorting and dust collecting integrated design realizes the intensification of the system and the simplification of the process. The invention adopts integrated design and airflow recycling, thus effectively solving the problems of complex flow, more conveying equipment, more fans, large occupied area and poor adaptability in the prior art, and further having the advantages of low equipment cost, low energy consumption, small occupied area, production line investment saving, flexibility and adjustability.

Drawings

Technical solutions of embodiments of the present application will be described in further detail below with reference to the accompanying drawings, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present application. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of the interior of a sorting unit provided by an embodiment of the present invention;

FIG. 2 is a front view provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2 in accordance with the teachings of the present invention;

FIG. 5-1 is a schematic view of the diverter device of the present invention in a left extreme position;

FIG. 5-2 is a schematic view of the diverter device of the present invention in an intermediate position;

fig. 5-3 are schematic views of the diverter device of the present invention in a right extreme position;

figure 6-1 is a schematic view of the blowing device of the present invention at a low elevation angle;

figure 6-2 is a schematic view of a blowing device of the present invention at a high elevation angle.

In the figure, 1, a screening unit; 2. a circulating fan; 3. an air duct; 4. a sorting chamber; 5. a blowing device; 6. a flow divider; 7. a recycled aggregate discharge port; 8. a light material outlet; 9. a housing; 10. an ash hopper; 11. a filter bag; 12. a pulse ash removal device; 13. a screw conveyor; 14. rotating the blanking device; 15. an electric butterfly valve; 16. a steel pipe; 17. opening a hole; 18. an electric actuator; 19. a rotating shaft.

Detailed Description

The basic principle adopted by the common sorting technology at present is that the airflow can be used for carrying some lighter materials upwards or carrying the lighter materials to a farther place in the horizontal direction, and the heavy materials are mainly subjected to a sedimentation phenomenon because the ascending airflow cannot support or are thrown out in the horizontal direction for a short distance because of inertia, so that the separation of the materials is realized. But the adjustability is poor, and separation efficiency is not high, and the dust of raiseing needs to carry out the secondary dust and collects.

The invention is realized in such a way that the building garbage screening, light substance sorting and dust collection integrated equipment and the method thereof comprise a screening unit, a sorting unit, a dust collection unit and a circulating air list. After the materials enter the screening unit, the materials at the tail end of the screen are flattened while the screening separation of the coarse and fine materials is realized through the screen, and the material layers are uniformly distributed and enter the light material sorting cavity. The air flow required in the sorting process comes from a circulating fan, the circulating fan can adjust the air quantity and the air pressure through frequency conversion and speed regulation, the air direction adjusting device adopts a flat port design to improve the effective contact of the air flow and the materials, and the installation angle can be adjusted to optimize the winnowing effect; the double-layer distribution device is arranged in a double-layer mode to carry out twice sorting, the installation position can be adjusted to improve the separation efficiency of aggregate and light materials, and when the building waste contains more light materials, the double-layer inverted cone-shaped distribution device moves and is adjusted towards the direction of a building waste feeding port due to smaller volume weight and is used for receiving more light materials; when the construction waste contains more recycled aggregate, the double-layer inverted cone-shaped flow dividing device is moved and adjusted towards the direction far away from the feeding port of the construction waste due to the larger volume weight, so that more recycled aggregate can pass through the double-layer inverted cone-shaped flow dividing device conveniently; after separation, the light materials are discharged from a light material outlet, and the aggregate is discharged from a recycled aggregate outlet. The whole sorting unit is flexible and adjustable, and the light material sorting efficiency is obviously improved. The dust-containing airflow of the sorting unit enters the dust collecting unit, after being collected by the filter bag, dust is discharged from the dust hopper, the screw conveyor and the rotary feeder, the gas passes through the circulating fan and the air pipe, and the gas returns to the sorting cavity, so that the gas is recycled in the whole equipment, the dust is prevented from being directly discharged into the atmosphere, zero dust emission is realized, and a better environment-friendly effect is achieved. The whole set of equipment is integrally designed, and is energy-saving, environment-friendly, flexible and efficient.

In order to further realize the adjustability of the equipment and the adaptability to the construction wastes with different component proportions, in the technical scheme, the separation efficiency and the adaptability of the equipment are obviously improved by adjusting the air volume, the air pressure and the air direction and coupling the angle adjustment of the blowing device and the position adjustment of the flow dividing device, and the process flow is simplified, the equipment cost is reduced, the energy consumption is reduced, the occupied area is saved, and the production line investment is reduced by the integrated design of screening, separation and dust collection.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Example 1

Demolish building rubbish and select separately

Demolishing the building rubbish and passing through screening unit (1) and entering into sorting chamber (4), the building rubbish is at the whereabouts in-process, through circulating fan (2) adjustment system's amount of wind and wind pressure, adjusts the amount of wind of each tuber pipe through electric butterfly valve (15), adjusts the jetting angle of air current to the building rubbish through jetting device (5), through diverging device (6) supplementary aggregate and the separation of light material of carrying on. After sorting, the aggregate is discharged from a recycled aggregate discharge port (7), and the light material is discharged from a light material discharge port (8). The dust in the separation cavity is filtered by the filter bag (11) through the negative pressure provided by the circulating fan (2), the dust is deposited on the surface of the filter bag (11), and the clean air is discharged through the circulating fan (2). The resistance of the filter bag (11) is increased along with the increase of the dust on the surface of the filter bag (11), when the air pressure reaches a certain set value, the program control pulse dust cleaning device (12) is started to work, the sprayed compressed air enters the filter bag (11), instant positive pressure is formed in the filter bag (11), huge vibration is generated, and dust deposited on the outer surface of the filter bag (11) falls off, falls into the dust hopper (10) and is discharged through the spiral conveyor (13) and the rotary feeder (14).

1. Because the inlet of the sorting cavity (4) is as wide as the screening unit (1), the dispersing and uniform distribution effects of the screening unit are effectively utilized, and the sorting of materials is facilitated.

2. Because the circulating fan (2) adopts frequency conversion speed regulation, the air quantity and the air pressure can be conveniently, quickly and accurately regulated, and the power consumption is reduced.

3. Because the air inlet of the separation cavity (4) is provided with the double-channel blowing device (5), a flat airflow jet orifice is formed, the full-section targeted blowing is carried out on the materials along the direction of material dispersion, meanwhile, the blowing device (5) automatically adjusts the deflection angle to adjust the wind direction under the action of the electric actuator, and the wind quantity, the wind pressure and the wind direction can be adjusted according to different proportions of the components of the construction waste by combining the variable frequency speed regulation of the circulating fan (2), so that the optimal gas flow field effect is achieved. Meanwhile, the effective utilization rate of the air flow is greatly improved, and the capacity of the fan is obviously reduced.

4. Because the double-layer inverted cone-shaped shunt device (6) with movable positions is adopted for twice sorting, the sorting efficiency is further improved, and the light material separation efficiency reaches more than 98 percent by combining the combined action of other measures.

5. Due to the adoption of the integrated design of screening, sorting and dust collection, the additional investment caused by independently arranging a dust collection system for dust collection is saved, and the process flow and the operation control are greatly simplified.

6. Due to the adoption of the integrated design, the gas coming out of the circulating fan (2) can return to the separation cavity (4) for cyclic utilization, so that zero emission of dust is realized, and the device is more energy-saving and environment-friendly.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

the device comprises a screening unit, a light substance sorting unit and a dust collecting unit. The air inlets of the left layer and the right layer in the left direction and the right direction are arranged below the feed inlet of the separation cavity, a scientific and reasonable air flow field is formed through positive pressure air flow of the outlet of the fan, the positive pressure environment of the spraying separation area is gradually transited to the negative pressure environment of the dust collection area, the movement of light materials is facilitated, the separation probability of the light materials and the recycled aggregate is increased, and the separation efficiency is improved. Due to the frequency conversion of the fan, the adjustment of air quantity and air pressure can be realized. A blowing device at the air inlet of the sorting cavity forms a flat airflow jet orifice, and the full section of the blowing device is contacted with the material to perform targeted blowing on the material; meanwhile, the blowing device automatically adjusts the deflection angle and adjusts the wind direction under the action of the electric actuator, so that the whole equipment can be suitable for sorting the construction wastes with different component proportions. And a double-layer inverted cone-shaped flow dividing device is arranged at the position, matched with the air inlet, in the sorting cavity to assist in separating light materials. Due to the matching of the bidirectional double-layer air inlet and the double-layer flow dividing device, the materials can be sorted twice, and the separation rate is improved. The construction waste from the screening unit is layered due to the density difference under the action of the airflow, the aggregate is blocked by the shunting device and is discharged through the aggregate outlet, and the light materials cross the shunting device and are discharged from the light material outlet at the other side. In order to further improve the sorting efficiency, the feed inlet of the sorting cavity is as wide as the screening units, and the dispersing and uniform distribution effects of the screening units are effectively utilized. Signals of all equipment of the whole sorting unit are transmitted into the control chamber, and automatic adjustment is carried out according to material properties and sorting effects, so that an optimal airflow field is formed, and sorting efficiency is greatly improved. The gas from the separation cavity is wrapped with fine dust, the fine dust enters a dust collection unit for dust collection, and the collected dust is discharged from a dust hopper of a dust collector through a screw conveyor and a rotary feeder.

Example 2

Sorting of decoration building garbage

Decoration building rubbish gets into through screening unit (1) and selects separately chamber (4), and building rubbish is at the whereabouts in-process, through circulating fan (2) adjustment system's amount of wind and wind pressure, adjusts the amount of wind of each tuber pipe through electric butterfly valve (15), adjusts the jetting angle of air current to building rubbish through jetting device (5), and the separation of aggregate and light material is carried out through diverging device (6) assistance. After sorting, the aggregate is discharged from a recycled aggregate discharge port (7), and the light material is discharged from a light material discharge port (8). The dust in the separation cavity is filtered by the filter bag (11) through the negative pressure provided by the circulating fan (2), the dust is deposited on the surface of the filter bag (11), and the clean air is discharged through the circulating fan (2). The resistance of the filter bag (11) is increased along with the increase of the dust on the surface of the filter bag (11), when the air pressure reaches a certain set value, the program control pulse dust cleaning device (12) is started to work, the sprayed compressed air enters the filter bag (11), instant positive pressure is formed in the filter bag (11), huge vibration is generated, and dust deposited on the outer surface of the filter bag (11) falls off, falls into the dust hopper (10) and is discharged through the spiral conveyor (13) and the rotary feeder (14).

1. Because the inlet of the sorting cavity (4) is as wide as the screening unit (1), the dispersing and uniform distribution effects of the screening unit are effectively utilized, and the sorting of materials is facilitated.

2. Because the circulating fan (2) adopts frequency conversion speed regulation, the air quantity and the air pressure can be conveniently, quickly and accurately regulated, and the power consumption is reduced.

3. Because the air inlet of the separation cavity (4) is provided with the double-channel blowing device (5), a flat airflow jet orifice is formed, the full-section targeted blowing is carried out on the materials along the direction of material dispersion, meanwhile, the blowing device (5) automatically adjusts the deflection angle to adjust the wind direction under the action of the electric actuator, and the wind quantity, the wind pressure and the wind direction can be adjusted according to different proportions of the components of the construction waste by combining the variable frequency speed regulation of the circulating fan (2), so that the optimal gas flow field effect is achieved. Meanwhile, the effective utilization rate of the air flow is greatly improved, and the capacity of the fan is obviously reduced.

4. Because the decoration building rubbish contains more light materials and the volume weight of heavy materials such as gypsum boards is smaller, the double-layer inverted cone-shaped flow dividing device moves and is adjusted towards the direction of the building rubbish feeding port and is used for receiving more light materials. The double-layer flow dividing device with movable positions is used for twice separation, so that the separation efficiency is further improved, and the separation efficiency of light materials reaches more than 98%.

5. Due to the adoption of the integrated design of screening, sorting and dust collection, the additional investment caused by independently arranging a dust collection system for dust collection is saved, and the process flow and the operation control are greatly simplified.

6. Due to the adoption of the integrated design, the gas coming out of the circulating fan (2) can return to the separation cavity (4) for cyclic utilization, so that zero emission of dust is realized, and the device is more energy-saving and environment-friendly.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

the sorting efficiency is remarkably improved through the unique design of bidirectional double-layer secondary air inlet of the sorting unit, flat targeted injection, a three-dimensional flow field distribution mode, combined sorting of gas injection and physical diversion, double-layer diversion twice sorting, fan frequency conversion, automatic adjustment of an injection device and the like; meanwhile, the whole screening, sorting and dust collecting integrated design realizes the intensification of the system and the simplification of the process.

In conclusion, the invention provides the building garbage screening, light material sorting and dust collecting integrated equipment and the method, which are suitable for dry production equipment, adjustable in air quantity, air pressure and air direction, movable in the position of the flow dividing device, and capable of adapting to sorting of building garbage with different component proportions by matching the double-layer air inlet with the double-layer adjustable spraying device, and remarkably improving sorting efficiency.

The present invention has been described in detail with reference to the above examples, but the description is only for the preferred examples of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (9)

1. The utility model provides a building rubbish screening, light material are selected separately and are gathered dust integration equipment which characterized in that: building rubbish screening, light material are selected separately and are collected dust integration equipment includes: the sorting unit comprises a sorting cavity and a circulating fan, an injection device is arranged below the bottom of the sorting cavity, the circulating fan is connected with the injection device through an air pipe and a hose, an electric butterfly valve is installed on the air pipe, a shunting device is arranged in the middle of the sorting cavity, a regenerated aggregate discharge port and a light material discharge port are arranged at the bottom of the sorting cavity, the injection device is aligned to the shunting device, and the shunting device is inverted-cone-shaped.

2. The integrated equipment for screening construction waste, sorting light materials and collecting dust according to claim 1, which is characterized in that: the shunt device is arranged in a double layer.

3. The integrated equipment for screening construction waste, sorting light materials and collecting dust according to claim 1, which is characterized in that: the number of the blowing devices is two, and the blowing devices are flat openings.

4. The integrated equipment for screening construction waste, sorting light materials and collecting dust according to claim 1, which is characterized in that: building rubbish screening, light material are selected separately and integrated equipment gathers dust still includes: a screening unit upstream of the sorting unit, and a dust collecting unit downstream of the sorting unit.

5. The integrated equipment for screening construction waste, sorting light materials and collecting dust of claim 4, wherein: the screen cloth of screening unit can produce the vibration under the effect of vibration exciter, sieves the material that gets into the screening unit, and the material that the size is less than the sieve mesh gets into under the sieve, and the material that the size is greater than the sieve mesh gets into next unit, the screening unit is the same width with sorting chamber import.

6. The integrated equipment for screening construction waste, sorting light materials and collecting dust of claim 4, wherein: the dust collection unit comprises a shell, an ash bucket, a filter bag, a pulse ash removal device, a spiral conveyor and a rotary feeder, wherein the filter bag is installed in the shell, the pulse ash removal device is installed at the top of the shell, the ash bucket is installed below the filter bag, namely the bottom of the shell, the spiral conveyor is installed at the bottom of the ash bucket, and the rotary feeder is installed at a discharge hole of the spiral conveyor.

7. The integrated equipment for screening construction waste, sorting light materials and collecting dust of claim 4, wherein: and the airflow out of the separation cavity is dedusted by the dust collection unit and then returns to the separation cavity through the circulating fan.

8. A construction waste screening, light material sorting and dust collection integrated method is characterized in that: the method for integrating the building garbage screening, the light material sorting and the dust collection adopts the building garbage screening, the light material sorting and the dust collection integrated equipment in any one of claims 1 to 7.

9. The integrated method for screening construction waste, sorting light materials and collecting dust according to claim 8, wherein the method comprises the following steps: the construction waste screening, light material sorting and dust collection integrated construction waste sorting method comprises the following steps:

the method comprises the following steps: the construction waste is screened and separated by the screening unit, and the uniform thin layer of the light material is flattened at the tail end of the screen;

step two: the construction waste leaves the screen, the material is injected by the injection device in the falling process, the injection angle of the air flow to the construction waste can be adjusted according to different conditions of the material, the position of the double-layer distribution device is adjusted, the aggregate is discharged from a regenerated aggregate discharge port after separation, and the light material is discharged from a light material discharge port;

step three: the dust in the separation cavity is filtered by the filter bag through the negative pressure provided by the circulating fan, the dust is deposited on the surface of the filter bag, is discharged through the spiral conveyer and the rotary feeder after pulse ash removal, and the clean air is discharged through the circulating fan.

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