Efficient environment-friendly construction waste crushing device

Abstract

The utility model belongs to the technical field of construction waste treatment equipment, and particularly relates to an efficient environment-friendly construction waste crushing device. According to the device, through the linkage design of the gravity driving mechanism and the spraying mechanism, the dynamically adjustable spraying unit is arranged between the feeding hole of the crusher and the shell. The trigger piece is connected with a feeding port, the transmission assemblies are symmetrically distributed, the water spraying pipe is provided with a balancing weight, when materials fall to impact the trigger piece, gravitational potential energy drives the water spraying pipe to swing towards the interior of a shell, and the water mist coverage range is enlarged; after the materials are reduced, self-adaptive adjustment of the spraying angle is achieved through gravity resetting of the balancing weight. According to the scheme, external power is not needed, spraying swing is triggered through the gravity of materials, the dust capturing efficiency is remarkably improved, and meanwhile the swing stability is ensured through a symmetrical balance structure. And compared with a traditional fixed spraying technology, water resource consumption and equipment energy consumption are reduced, meanwhile, the dust falling effect and economical efficiency are considered, and the method is suitable for environment-friendly transformation of construction waste crushing scenes.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction waste treatment equipment, specifically relating to a high-efficiency and environmentally friendly construction waste crushing device. Background Technology

[0002] With the acceleration of urbanization, the amount of construction waste generated is increasing year by year. Statistics show that my country's annual construction waste production has exceeded 3 billion tons, accounting for more than 40% of total urban waste. Construction waste mainly consists of concrete blocks, bricks, tiles, and slag, and its resource utilization requires pre-treatment processes such as crushing and screening. Currently, mobile crushing plants, jaw crushers, and other equipment are widely used in the primary crushing of construction waste.

[0003] In crushing operations, collisions, compressions, and air turbulence during material descent lead to dust dispersion. Dust not only pollutes the working environment but can also harm the health of operators. To control dust dispersion, wet dust suppression technology is widely used in the industry, and it remains the primary means of controlling dust dispersion in current technologies. For example, a fixed spray system is installed above the crusher feed inlet to continuously spray water mist and suppress dust. However, the coverage area of ​​such spray systems is limited by the fixed installation angle of the nozzles, resulting in a relatively limited dust suppression area. Although existing technologies attempt to expand the coverage area by increasing the number of nozzles or increasing water pressure, this significantly increases operating costs. Therefore, developing an energy-efficient dust suppression technology is crucial for improving the overall performance of construction waste recycling equipment. Utility Model Content

[0004] The present invention aims to provide a high-efficiency and environmentally friendly construction waste crushing device to solve the problem of limited coverage of existing dust suppression devices in the process of crushing construction waste, achieve high-efficiency energy-saving dust suppression, and improve the overall performance of construction waste resource utilization equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency and environmentally friendly construction waste crushing device includes: a crusher and a dust collector. The dust collector includes a shell, a spraying mechanism, and a gravity drive mechanism. The inlet of the shell is located on one side, and the outlet is located on the lower side and communicates with the inlet of the crusher. The spraying mechanism is swayably connected to the upper part of the shell and communicates with an external water source.

[0007] The gravity drive mechanism includes: at least one set of transmission components, each set of transmission components including a gravity reset component, a transmission component and a guide component; and a trigger component connected to the transmission components;

[0008] in:

[0009] The gravity reset component is connected to the spraying mechanism and is used to keep the spray nozzle of the spraying mechanism in its initial orientation by gravity; one end of the transmission component is connected to the spraying mechanism, and the other end passes around the guide component and is connected to the trigger component; the trigger component spans the feeding channel of the shell, and when the construction waste falls, it collides with the trigger component and drives the spraying mechanism to swing through the transmission component.

[0010] Furthermore, the number of transmission components is two sets, symmetrically arranged on the front and rear sides of the housing, and the two ends of the trigger are respectively connected to the transmission components of the two sides of the transmission components.

[0011] Furthermore, the trigger is a rod-shaped structure, and its axial direction is perpendicular to the feeding direction of the housing.

[0012] Furthermore, the gravity reset component is a counterweight block whose center of gravity is offset from the swing axis of the spray mechanism.

[0013] Furthermore, the transmission component is a flexible pull rope, and the guide component is a rotatably mounted guide wheel.

[0014] Furthermore, the spraying mechanism includes a water spray pipe with atomizing nozzles on its circumference, and the atomizing nozzles face downwards in their natural state.

[0015] Furthermore, the trigger element is a circular rod-shaped structure.

[0016] Furthermore, the guide members of the two sets of transmission components are symmetrically installed on the inner sidewall of the housing.

[0017] Furthermore, the trigger is located in the middle of the housing feed channel, and its highest point is lower than the lower edge of the feed inlet.

[0018] Furthermore, the swing axis of the spraying mechanism is located inside the housing, above the side near the feed inlet.

[0019] This invention achieves dynamic adjustment of the spray range through a gravity-driven and spray mechanism linkage design, effectively solving the problems of low dust suppression efficiency and limited coverage area of ​​traditional fixed spray systems. It utilizes the gravitational potential energy of falling materials to autonomously drive the spray oscillation, precisely expanding the water mist coverage area without additional power, significantly improving dust capture efficiency. Simultaneously, the symmetrical balance structure design ensures stable and reliable spray oscillation. Compared to traditional technologies, this solution reduces water consumption and equipment modification costs while balancing dust suppression effectiveness and operational economy, demonstrating significant environmental and practical value. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of an embodiment of the high-efficiency and environmentally friendly construction waste crushing device of this utility model;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is a cross-sectional structural schematic diagram of an embodiment of a high-efficiency and environmentally friendly construction waste crushing device according to the present invention;

[0024] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0025] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point C.

[0026] The meanings of the labels in the attached diagram are as follows:

[0027] Crusher 1, dust collector 2, shell 21, water spray pipe 22, atomizing nozzle 221, transmission assembly 23a, gravity reset component 231, transmission component 232, trigger component 233, guide component 234. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Reference Figures 1-5 As shown, this embodiment of a high-efficiency and environmentally friendly construction waste crushing device achieves dynamic adjustment of the spray range as the material falls through a mechanical linkage structure, making it particularly suitable for dust control in construction waste treatment.

[0030] In this embodiment, the high-efficiency and environmentally friendly construction waste crushing device includes a crusher 1 and a dust collector 2. The dust collector 2 has a feed inlet on the left side of its housing 21, and its lower discharge outlet is connected to the feed inlet of the crusher 1. Construction waste enters through the feed inlet of the housing 21 and slides into the crusher 1 along the inclined feed channel. To suppress dust diffusion, a swingable spraying mechanism is installed in the upper left of the housing 21. In this embodiment, the spraying mechanism specifically includes a water spray pipe 22 and multiple atomizing nozzles 221 arranged around the water spray pipe 22. The water spray pipe 22 is rotatably connected to the side wall of the housing 21, and one end of it is connected to an external water supply pipeline through a rotary joint. In its natural state, the atomizing nozzles 221 of the water spray pipe 22 are kept facing downward under the action of the gravity drive mechanism, and the initial spraying area covers the feed inlet of the crusher 1 from top to bottom.

[0031] It is worth emphasizing that the rotating connection structure of the water spray pipe 22 adopts a double bearing support design, which can withstand the lateral load generated by the impact of materials and ensure stable operation without deviation during the swing process. The arrangement density of the atomizing nozzles 221 has been optimized through fluid dynamics simulation, and can form a continuous and uniform water mist curtain under normal water pressure, effectively intercepting the dust diffusion path.

[0032] In this embodiment, the gravity drive mechanism specifically includes a transmission assembly 23a and a trigger 233. In this embodiment, the transmission assembly 23a is provided in two sets and symmetrically arranged on the front and rear sides of the housing 21. Each set of transmission assemblies 23a specifically includes a gravity reset component 231, a transmission component 232, and a guide component 234.

[0033] In this embodiment, the gravity reset component 231 is specifically a counterweight, fixed to both ends of the water spray pipe 22. Its center of gravity is offset from the rotation axis of the water spray pipe 22, forming a gravitational torque that resets the water spray pipe 22. In some embodiments, the counterweight can be modularly designed, and the magnitude of the reset torque can be flexibly adjusted by adding or removing counterweight components to adapt to different working conditions. The unique center of gravity offset design makes the reset action smooth and fluid.

[0034] In this embodiment, the transmission component 232 is specifically a flexible pull rope. One end of the rope is connected to the counterweight near the water spray pipe 22, and the other end is fixed to the end of the trigger component 233 after passing around the guide component 234. During the entire transmission process, the flexible pull rope can effectively transmit force, ensuring reliable linkage between the trigger component 233 and the spraying mechanism. The flexible pull rope is made of high-strength composite material and has excellent wear resistance.

[0035] In this embodiment, the guide component 234 is specifically a rotatably mounted guide wheel. Two guide wheels are respectively installed on the front and rear side walls inside the housing 21, with their installation position located on the right side inside the housing 21, specifically slightly to the left above the feed inlet of the crusher 1. The design of the guide wheel not only changes the direction of movement of the transmission component 232, but also greatly reduces friction during transmission through its rolling friction, improving the smoothness of transmission and making the entire device operate more smoothly. The guide wheel adopts a grooved wheel structure to accommodate the transmission component 232, ensuring that the transmission component 232 can be stably guided.

[0036] The trigger element 233 is a rod-shaped structure spanning the feed channel of the housing 21, with its two ends connected to the transmission elements 232 of the transmission assemblies 23a on both sides. In this embodiment, the trigger element 233 is specifically a circular steel rod with a rubber-coated surface, a design that balances strength and practicality. The circular steel rod ensures the stability of the structure and can withstand the impact of construction waste; while the rubber layer has multiple functions, not only reducing the noise generated when construction waste collides with the trigger element 233, but also acting as a buffer and extending the service life of the trigger element 233. The trigger element 233 is horizontally positioned in the feed channel of the housing 21 near the discharge port, with its highest point lower than the lower edge of the feed port. This positional design has been carefully considered to ensure that the falling construction waste can effectively collide with the trigger element 233, thereby smoothly activating the swinging action of the spray mechanism.

[0037] When construction waste enters the shell 21 and falls along the inclined feeding channel, the material impacts the trigger 233, causing it to press down. The trigger 233, through the transmission components 232 on both sides, synchronously pulls the gravity reset component 231, causing it to swing the water spray pipe 22 to the right. The spray direction of the atomizing nozzle 221 then expands into the shell 21. After the material passes through, the gravity of the gravity reset component 231 drives the water spray pipe 22 to rotate back to the left to reset.

[0038] In this embodiment, the design of two sets of symmetrical transmission components 23a ensures balanced force distribution when the water spray pipe 22 swings, preventing jamming of one-sided transmission components 232; the guide component 234 uses a bearing rotation connection to improve transmission smoothness; the rubber layer of the trigger component 233 reduces impact noise and extends service life. Furthermore, the installation height of the trigger component 233 can be adjusted by changing the suspension length of the transmission component 232 to adapt to the impact requirements of different materials, further enhancing the versatility of the equipment.

[0039] This invention achieves dynamic adjustment of the spray range through a gravity-driven and spray mechanism linkage design, effectively solving the problems of low dust suppression efficiency and limited coverage area of ​​traditional fixed spray systems. It utilizes the gravitational potential energy of falling materials to autonomously drive the spray oscillation, precisely expanding the water mist coverage area without additional power, significantly improving dust capture efficiency; simultaneously, the symmetrical balance structure design ensures stable and reliable spray oscillation.

[0040] In summary, compared with traditional technologies, this solution reduces water consumption and equipment modification costs while balancing dust reduction effectiveness and operational economy, demonstrating significant environmental and practical value.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A high-efficiency and environmentally friendly construction waste crushing device, characterized in that, include: A crusher and a dust collector, wherein the dust collector includes a housing, a spraying mechanism and a gravity drive mechanism; the feed inlet of the housing is located on one side, and the discharge outlet is located on the lower side and communicates with the feed inlet of the crusher; the spraying mechanism is oscillatingly connected to the upper part of the housing and communicates with an external water source; The gravity drive mechanism includes: at least one set of transmission components, each set of transmission components including a gravity reset component, a transmission component and a guide component; and a trigger component connected to the transmission components; in: The gravity reset component is connected to the spraying mechanism and is used to keep the spray nozzle of the spraying mechanism in its initial orientation by gravity; one end of the transmission component is connected to the spraying mechanism, and the other end passes around the guide component and is connected to the trigger component; the trigger component spans the feeding channel of the shell, and when the construction waste falls, it collides with the trigger component and drives the spraying mechanism to swing through the transmission component.

2. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The number of transmission components is two sets, symmetrically arranged on the front and rear sides of the housing, and the two ends of the trigger are respectively connected to the transmission components of the two sides of the transmission components.

3. The high-efficiency and environmentally friendly construction waste crushing device according to claim 2, characterized in that: The trigger is a rod-shaped structure, and its axial direction is perpendicular to the feeding direction of the housing.

4. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The gravity reset component is a counterweight block, the center of gravity of which is offset from the swing axis of the spray mechanism.

5. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The transmission component is a flexible pull rope, and the guide component is a rotatably mounted guide wheel.

6. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The spraying mechanism includes a water spray pipe with atomizing nozzles on its circumference, and the atomizing nozzles face downwards in their natural state.

7. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The trigger element is a circular rod-shaped structure.

8. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The guide components of the two sets of transmission assemblies are symmetrically installed on the inner sidewall of the housing.

9. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The trigger is located in the middle of the housing feed channel, and its highest point is lower than the lower edge of the feed inlet.

10. The high-efficiency and environmentally friendly construction waste crushing device according to claim 1, characterized in that: The swing axis of the spraying mechanism is located inside the housing, above the side near the feed inlet.

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