Efficient crushing and screening machine for building waste
By introducing adjustable crushing rollers and a multi-stage dust filtration system into the construction waste crushing and screening machine, the problems of dust pollution and insufficient equipment flexibility have been solved, achieving efficient crushing and clean production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-20
AI Technical Summary
Existing construction waste crushing and screening processes generate a large amount of dust containing harmful substances, endangering the health of workers and polluting the environment. Furthermore, the equipment lacks flexibility and cannot adjust the spacing between crushing rollers according to the size of the waste, thus affecting production efficiency.
It adopts an adjustable crushing roller and dust collection mechanism. The gap between the crushing rollers is adjusted by the drive component, and the dust is captured by a water mist and filtration system, including atomizing nozzles, dust collection fan, filter screen and activated carbon filter screen for multi-stage filtration, so as to achieve effective dust capture and recycling.
It effectively reduces dust pollution, protects the health of workers, improves production efficiency, reduces environmental pollution, and enhances the applicability and flexibility of equipment.
Smart Images
Figure CN224009906U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building waste treatment technical field especially relates to building waste efficient crushing and screening machine. BACKGROUND
[0002] With the acceleration of urbanization process and the continuous development of construction industry, the production of building waste is increasing, and because building waste is randomly stacked and occupies space and can cause soil, water and air pollution, through crushing and screening, building waste can become recycled aggregate, which is used for road construction, brick and tile production, etc., to replace natural aggregate, reduce resource consumption and realize recycling.
[0003] The building waste crushing and screening machine mainly crushes large building waste into smaller particles through extrusion, shearing and impact, and according to the hardness, toughness and brittleness of the material and other parameters such as yield and particle size requirements, different types of crushing equipment can be selected, such as jaw crusher, cone crusher and impact crusher, and the screening device classifies the crushed material according to particle size, further separates the product with the required particle size, and the screening equipment includes fixed screen, roller screen, cylindrical screen, arc screen and fine screen, which are suitable for different application scenarios according to the different material movement tracks, such as elliptical vibrating screen, circular vibrating screen and linear vibrating screen, and different operation requirements, such as pre-screening, finished product screening and inspection screening.
[0004] In the prior art, when building waste enters the crushing and screening link, a large amount of dust is generated, and the dust generated in the building waste crushing and screening process contains various harmful substances such as cement, asbestos and heavy metals, which can be inhaled into the respiratory tract by workers and then enter the lungs, even into the blood circulation, causing serious harm to the body, thus leading to long-term work, reducing work efficiency, and the dust will diffuse to the surrounding environment with air flow, causing serious pollution to the atmospheric environment, not only reducing air quality and making the air turbid, but also reducing visibility, and may also react with other pollutants to form more complex pollutants, further aggravating air pollution. UTILITY MODEL CONTENT
[0005] The utility model aims at solving the shortcomings in the prior art and provides a building waste efficient crushing and screening machine.
[0006] In order to achieve the above object, the utility model discloses the following technical scheme: building waste high -efficient broken screening machine, including the body, the body inner wall array rotation is connected with the broken roll, and the broken roll surface broken tooth is staggered, the broken roll is below the screen classifier that is equipped, the body side is fixed with water tank, dust absorption chamber and filter chamber in proper order from top to bottom, the water tank side is connected with circulating water pipe, the other end of circulating water pipe is connected with circulating water pump, and the circulating water pump water suction end is connected with filter chamber, and the dust absorption chamber is equipped with atomizing nozzle and dust absorption fan in the inside array, and the dust absorption fan is driven through the external motor, and the atomizing nozzle is connected with water tank, and the body inner wall is arrayed and is equipped with the sieve hole on one side close to the dust absorption fan.
[0007] Preferably, one end of the T-shaped slider is provided with a screw rod penetrating through the side surface, and the screw rod is threadedly connected with the T-shaped slider, the T-shaped slider is slidably connected with the inner cavity of the body, and the screw rod is connected with the inner cavity bearing at both ends, the screw rod is driven by the driving assembly, the distance between the broken rollers of most of the current broken equipment is fixed, and cannot be adjusted according to actual requirements, when facing large building waste, the waste is easy to be stuck between the broken rollers due to the unadjustable distance between the broken rollers, the equipment is stalled, the production efficiency is affected, in order to handle the stuck waste, the machine needs to be stopped for cleaning, which not only increases the labor cost and time cost, but also may cause certain damage to the equipment, for some small building waste, the waste directly enters the screening machine through the gap due to the unadjustable distance between the broken rollers, and needs to be broken again, in view of the problems, the utility model adopts the adjustable broken roller, the screw rod is driven to rotate by the driving assembly, the T-shaped slider at one end is driven to slide, and the distance between the broken rollers is adjusted, the application range and flexibility of the crusher are improved, the large building waste is prevented from being stuck in the broken roller, the small building waste directly enters the screening machine through the gap to be broken again, and the T-shaped slider at the other end is fixed with a broken motor for driving the broken roller to rotate.
[0008] Preferably, the driving assembly comprises a large belt pulley and a small belt pulley, the large belt pulley is fixedly connected with one end of the screw rod, the large belt pulley and the small belt pulley are surface-nested and engaged with a belt, and the small belt pulley is driven by a belt motor, the diameter difference between the large belt pulley and the small belt pulley can realize the conversion of different rotating speeds, the large belt pulley is connected with the screw rod, the small belt pulley is driven by the motor, the high-speed rotation of the motor is converted into the low-speed rotation of the screw rod through the belt drive, and the distance adjustment accuracy of the broken roller is improved.
[0009] Preferably, a first filter screen is arranged between the dust absorption chamber and the filter chamber, the first filter screen filters large particles of dust for the first time, and the excess water flows into the filter chamber.
[0010] Preferably, the inner wall of the filtering cavity is provided with an activated carbon filter screen, and small particle dust is filtered again through the activated carbon filter screen, when the water flow containing small particle dust after preliminary filtering enters the filtering cavity, the small particle dust is fully contacted with the activated carbon filter screen, the activated carbon filter screen effectively filters the small particle dust again by virtue of its unique adsorption characteristics, the porous structure of the activated carbon has a large specific surface area, and the small particle dust is adsorbed on the surface of the filter screen by adsorption, thereby improving the filtering effect.
[0011] Preferably, the first filter screen and the inner wall of the dust collection cavity are detachably connected, and the activated carbon filter screen and the inner wall of the filtering cavity are detachably connected, so that the filter screen can be cleaned regularly after long-time work, and the detachable connection improves the dismounting efficiency of the filter screen.
[0012] Beneficial effects
[0013] In the prior art, when the construction waste enters the crushing and screening link, a large amount of dust is generated, the dust generated in the crushing and screening process of the construction waste contains various harmful substances such as cement, asbestos and heavy metals, the substances are inhaled into the respiratory tract of the workers along with the dust, and then enter the lungs, and even circulate in the blood, thereby causing serious damage to the body, so that the workers cannot work for a long time, and the working efficiency is reduced, and the dust is diffused to the surrounding environment along with the air flow, causing serious pollution to the atmospheric environment, not only reducing the air quality and making the air turbid, but also reducing the visibility, and the dust may also react with other pollutants to form more complex pollutants, further aggravating the degree of air pollution, in view of the problems, the dust collection mechanism is adopted, the waste is crushed by the crushing roller, the crushed waste enters the screening machine for screening, the dust collection fan is driven to rotate by opening the external motor, a large amount of dust generated in the crushing and screening is sucked into the dust collection cavity, an exhaust port is formed on the other side of the dust collection cavity, and a filter screen is arranged at the exhaust port, and the water mist is sprayed by opening the atomizing nozzle, the water mist is combined with the dust to form dust, the first filter screen filters the large particle dust, the excess water flows into the filtering cavity, the small particle dust is filtered again by the activated carbon filter screen, and the water after filtering is sucked into the circulating water pump, so that the water is recycled, resources are saved, costs are reduced, dust pollution and harm to the workers are reduced, and the working efficiency of the workers is improved, so that the crushing and screening of the construction waste is more efficient. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0015] Figure 2 It is a three-dimensional structure schematic view of the utility model's screw rod mechanism and belt mechanism;
[0016] Figure 3 It is a three-dimensional structure schematic view of the dust suction mechanism of the utility model.
[0017] Figure 4 It is a three-dimensional structure schematic view of the screening machine in the utility model.
[0018] Legend:
[0019] 1, machine body; 2, water tank; 3, dust suction cavity; 4, filter cavity; 5, crushing roller; 6, dust suction fan; 7, atomizing nozzle; 8, circulating water pipe; 9, circulating water pump; 10, crushing motor; 11, screening machine; 12, T-shaped sliding block; 13, screw rod; 14, small pulley; 15, large pulley; 16, belt; 17, belt motor; 18, first filter screen. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the utility model.
[0021] The specific embodiments of the utility model are described below in combination with the drawings. Specific embodiments:
[0023] Reference Figures 1-4 , the building waste efficient crushing screening machine, including machine body 1, the inner wall of machine body 1 is arrayed rotationally connected with crushing roller 5, and the surface crushing tooth of crushing roller 5 is staggered, crushing roller 5 is below and is equipped with screening machine 11, the side surface of machine body 1 is sequentially fixed with water tank 2, dust suction cavity 3 and filter cavity 4 from top to bottom, the side surface of water tank 2 is communicated with circulating water pipe 8, the other end of circulating water pipe 8 is communicated with circulating water pump 9, the water suction end of circulating water pump 9 is communicated with filter cavity 4, the inside of dust suction cavity 3 is equipped with atomizing nozzle 7 and dust suction fan 6 in array, dust suction fan 6 is driven by external motor, atomizing nozzle 7 is communicated with water tank 2, the inner wall of machine body 1 is arrayed and is equipped with sieve hole on the side close to dust suction fan 6.
[0024] One end of the crushing roller 5 is rotatably connected with a T-shaped sliding block 12, a screw rod 13 is arranged on the side surface of the T-shaped sliding block 12, and the screw rod 13 is threadedly connected with the T-shaped sliding block 12; the T-shaped sliding block 12 is slidably connected with the inner cavity of the machine body 1, and the two ends of the screw rod 13 are connected with the inner cavity bearings of the machine body 1; the screw rod 13 is driven by a driving assembly. At present, the distance between the crushing rollers of most crushing equipment is fixed and cannot be adjusted according to actual needs. When facing large blocks of construction waste, the distance between the crushing rollers cannot be increased, and the waste is easily stuck between the crushing rollers, causing the equipment to stop and affecting the production efficiency. Moreover, in order to deal with the stuck waste, the equipment needs to be stopped for cleaning, which not only increases the labor cost and time cost, but also may cause damage to the equipment. For some smaller construction waste, the distance between the crushing rollers cannot be reduced, and the waste directly enters the screening machine through the gap, which needs to be crushed twice. To solve the above problems, the adjustable crushing roller 5 is adopted, the screw rod 13 is driven to rotate by the driving assembly, the T-shaped sliding block 12 at one end is driven to slide, and the distance between the crushing rollers 5 is adjusted, thereby improving the application range and flexibility of the crusher, preventing large construction waste from being stuck in the crushing roller 5, and preventing small construction waste from directly entering the screening machine through the gap for secondary crushing. The other end of the T-shaped sliding block 12 is fixedly connected with a crushing motor 10 for driving the crushing roller 5 to rotate. The driving assembly comprises a large belt pulley 15 and a small belt pulley 14, the large belt pulley 15 is fixedly connected with one end of the screw rod 13, the large belt pulley 15 and the small belt pulley 14 are surface-nested with a belt 16, the small belt pulley 14 is driven by a belt motor 17, the diameter difference between the large belt pulley 15 and the small belt pulley 14 can realize the conversion of different rotating speeds, the large belt pulley 15 is connected with the screw rod 13, the small belt pulley 14 is driven by the motor, and the high-speed rotation of the motor is converted into the low-speed rotation of the screw rod by the belt drive, thereby improving the distance adjustment accuracy of the crushing roller 5.
[0025] A first filter screen 18 is arranged between the dust collection cavity 3 and the filtering cavity 4, the first filter screen 18 is detachably connected with the inner wall of the dust collection cavity 3, the first filter screen 18 performs the first filtration on large particles of dust, and the excess water flows into the filtering cavity 4. An activated carbon filter screen is arranged on the inner wall of the filtering cavity 4, small particles of dust pass through the activated carbon filter screen to perform the second filtration, after the preliminary filtration, the water flow containing small particles of dust enters the filtering cavity, the small particles of dust are fully contacted with the activated carbon filter screen, the activated carbon filter screen performs the effective second filtration on the small particles of dust by virtue of the unique adsorption characteristics, the porous structure of the activated carbon has a large specific surface area, can adsorb the small particles of dust, firmly captures and adsorbs the small particles on the surface of the filter screen, and improves the filtration effect. The activated carbon filter screen is detachably connected with the inner wall of the filtering cavity 4, the filter screen needs to be cleaned regularly after long-time work, and the detachable connection improves the dismounting efficiency of the filter screen.
[0026] The utility model discloses a working principle: big pulley 15 is connected with screw rod 13, and small pulley 14 is driven by belt motor 17, utilizes the belt drive, can convert the high -speed rotation of motor into the low -speed rotation of screw rod, drives the T -shaped slider 12 of one end to slide, and according to the size of waste material carries out interval adjustment, after adjusting, waste material passes through the crushing roll 5 and is crushed, and the crushing motor 10 of the T -shaped slider 12 of the other end drives crushing roll 5 to rotate, and the waste material after crushing enters screening machine 11 and is screened, simultaneously, open the external motor drive dust collection fan 6 and rotate, and a large amount of dust produced in crushing and screening is sucked into dust collection cavity 3, and the other side of dust collection cavity 3 is provided with exhaust port, and is provided with filter screen at the exhaust port, and simultaneously, open the atomizing nozzle 7, and the water mist that sprays combines with dust to form dust, and by first filter screen 18, first -time filtration is carried out to large -sized dust, and the excess moisture flows into filter chamber 4, and small -sized dust is carried out secondary filtration by activated carbon filter screen, and when the moisture after filtration does not pass the water suction end of circulating water pump 9, open circulating water pump 9, and the water is re -pumped into water tank 2 to form recycling.
[0027] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are directly contacted, also can include that first and second features are not directly contacted but are contacted through other feature between them. Moreover, first feature is "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that the horizontal height of first feature is higher than second feature. First feature is "under", "below" and "lower surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that the horizontal height of first feature is less than second feature.
[0028] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, and various changes and improvements of the utility model fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency crushing and screening machine for construction waste, comprising a machine body (1), wherein crushing rollers (5) are rotatably connected in an array on the inner wall of the machine body (1), and the crushing teeth on the surface of the crushing rollers (5) are staggered, and a screening machine (11) is provided directly below the crushing rollers (5), characterized in that: The machine body (1) has a water tank (2), a dust suction chamber (3) and a filter chamber (4) fixed on its side from top to bottom. The side of the water tank (2) is connected to a circulating water pipe (8). The other end of the circulating water pipe (8) is connected to a circulating water pump (9). The suction end of the circulating water pump (9) is connected to the filter chamber (4). The dust suction chamber (3) is equipped with an array of atomizing nozzles (7) and a dust suction fan (6). The dust suction fan (6) is driven by an external motor. The atomizing nozzles (7) are connected to the water tank (2). The inner wall of the machine body (1) near the dust suction fan (6) is provided with an array of sieve holes.
2. The high-efficiency crushing and screening machine for construction waste according to claim 1, characterized in that: One of the crushing rollers (5) is fixed with a T-shaped slider (12) at one end. A lead screw (13) is provided through the side of the T-shaped slider (12), and the lead screw (13) is threadedly connected to the T-shaped slider (12). The T-shaped slider (12) is slidably connected to the inner cavity of the machine body (1), and both ends of the lead screw (13) are connected to the bearings in the inner cavity of the machine body (1). The lead screw (13) is driven by a drive assembly.
3. The high-efficiency crushing and screening machine for construction waste according to claim 2, characterized in that: The drive assembly includes a large pulley (15) and a small pulley (14). The large pulley (15) is fixedly connected to one end of the lead screw (13). A belt (16) is nested and meshed on the surfaces of the large pulley (15) and the small pulley (14). The small pulley (14) is driven by a belt motor (17).
4. The high-efficiency crushing and screening machine for construction waste according to claim 1, characterized in that: A first filter (18) is provided between the dust suction chamber (3) and the filter chamber (4).
5. The high-efficiency crushing and screening machine for construction waste according to claim 4, characterized in that: The inner wall of the filter chamber (4) is provided with an activated carbon filter screen.
6. The high-efficiency crushing and screening machine for construction waste according to claim 5, characterized in that: The first filter screen (18) is detachably connected to the inner wall of the dust collection chamber (3), and the activated carbon filter screen is detachably connected to the inner wall of the filter chamber (4).