Dustproof pc material pulverizer

Abstract

The utility model relates to PC material crushing technical field especially, it relates to a dustproof PC material crusher. The utility model discloses a crusher body, a plurality of fixedly established in the crusher body on the crushing assembly, the communication of being established in the crusher body upper surface feed hopper, the first dust extraction component of fixedly established in the feed hopper, the second dust extraction component of fixedly established in the crusher body and the support foot of fixedly established in the bottom of the crusher body, the inner bottom surface of the crusher body is provided with the discharge gate, and the discharge gate is fixed with the particle screen on. The utility model aims at providing a dustproof PC material crusher to solve the lack of dust extraction equipment in the position of the crusher feed inlet, leading to the problem that PC particles are easy to escape from the position of the feed inlet when being put into and crushing.

Description

Technical Field

[0001] This utility model relates to the field of PC material crushing technology, and in particular to a dust-proof PC material crusher. Background Technology

[0002] The crushing of PC (polycarbonate) material is the process of breaking large pieces of PC waste into uniform particles or powder. Crushing is achieved through mechanical forces such as impact, shearing, and extrusion, while temperature is controlled to prevent material degradation. During crushing, large pieces of PC products (such as sheets, pipes, and shells) are cut or split. Oversized materials are pre-treated into "coarse material" (usually ≤30cm) suitable for entering the crusher, reducing the equipment load. High-speed rotating blades create a shearing action, "shredding" the PC material. The crushed material passes through a screen below the crushing chamber (the aperture is designed according to the target particle size, such as 3-10mm). Particles that meet the size requirements are discharged through the screen; coarse particles that do not meet the size requirements remain in the crushing chamber and continue to be sheared / impacted by the blades until they pass through the screen.

[0003] During the PC material crushing process, the PC material is sheared and impacted by high-speed rotating blades, and squeezed and refined inside the crushing chamber. When the material is crushed into fine particles, excessive local forces (such as friction at the blade edges or collisions between particles) generate a large amount of dust. The high-speed rotation of the blades creates a strong airflow within the crushing chamber, suspending the ultrafine powder produced during crushing in the air, forming dust. Currently, existing crushing devices incorporate dust collection equipment to prevent dust escape and absorb the dust generated during the crushing process. However, it's important to note that while the dust collection equipment is located inside the crusher, there is no corresponding dust collection structure at the feed inlet. When PC particles are fed in, the dust collection equipment inside the crusher cannot quickly and effectively absorb the dust generated by the falling PC particles, easily causing environmental pollution.

[0004] In addition, existing crushing equipment uses sealing devices to block the feed inlet during the crushing process to prevent dust from overflowing. However, due to the high-speed impact and grinding of materials into fine particles (especially ultrafine powder), a large amount of dust is generated. Even if the feed inlet is blocked, the high-pressure airflow or mechanical vibration in the crushing chamber may still cause some dust to diffuse into the inside of the feed inlet through gaps or openings between the sealing device and the feed inlet (such as the contact surface of the sealing cover or the dead corners at the edge of the feed inlet). This dust will adhere to the inner wall, edge, or contact surface of the feed inlet due to electrostatic adsorption, gravitational settling, or surface adhesion. When workers remove the sealing device from the feed inlet, the dust at the feed inlet location will escape, causing environmental pollution.

[0005] Therefore, designing a dust-proof PC material crusher that can solve the above-mentioned technical problems is a technical issue that needs to be addressed. Utility Model Content

[0006] To address the aforementioned problems, the present invention aims to provide a dust-proof PC material crusher, thereby solving the problem that the lack of an adjustable dust collection device at the feed inlet of the crusher leads to dust easily escaping from the feed inlet when PC particles are fed in and crushed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: the solution includes a crusher body, a plurality of crushing components fixed on the crusher body, a feed hopper connected to the upper surface of the crusher body, a first dust collection component fixed on the feed hopper, a second dust collection component fixed on the crusher body, and a support foot fixed to the bottom of the crusher body; a discharge port is opened on the bottom surface of the crusher body and a particle screen is fixed on the discharge port;

[0008] An installation groove is provided on one side wall of the feed hopper. The first dust collection assembly includes a dust collection hood hinged in the installation groove, a connecting pipe connected to the back of the dust collection hood, a corrugated dust collection pipe connected to the movable end of the connecting pipe, a first dust screen fixed to the front side of the dust collection hood, a connecting housing fixed to the outside of the feed hopper, an electric push rod fixed to the inner side wall of the connecting housing and hinged at both ends to the back of the dust collection hood and the inner side wall of the connecting housing respectively, a first fan fixed in the connecting housing, and a first dust collection container detachably disposed in the connecting housing and detachably connected to the first fan and the corrugated dust collection pipe.

[0009] Furthermore, each of the crushing components includes a drive motor fixed to the outside of the crusher body, a rotating shaft that is driven and connected to the output end of the drive motor and whose front end is rotatable, extending through the side wall of the crusher body into the crusher body, and a number of crushing blades fixed to the outer peripheral wall of the rotating shaft and spaced apart along the circumference of the rotating shaft.

[0010] Furthermore, the second dust collection assembly includes an arc-shaped dust pipe fixed to the side wall of the pulverizer body and communicating with the internal space of the pulverizer body, a dust inlet pipe whose front end passes through the side wall of the pulverizer body and communicates with the arc-shaped dust pipe, a second dust screen fixed at the air inlet of the arc-shaped dust pipe, a mounting housing fixed to the outside of the pulverizer body, a second fan fixed in the mounting housing, and a second dust collection container detachably disposed in the mounting housing and detachably connected at both ends to the second fan and the dust outlet pipe, respectively.

[0011] Furthermore, the aperture of the first dust screen and the second dust screen is less than 2.5 μm.

[0012] Furthermore, a thin rubber pad is also provided on the bottom surface of the pulverizer body.

[0013] Furthermore, an exhaust port is provided on the mounting housing at the position corresponding to the fan.

[0014] This utility model has the following beneficial effects:

[0015] 1-This utility model provides a first dust collection component on the feed hopper of the crusher. When PC particles are fed in, an electric push rod raises the dust collection hood, creating a gap between the hood and the feed hopper to facilitate the passage of PC particles. A first fan absorbs the dust generated when PC particles fall into the crusher. After the PC particles are fed in, the electric push rod lowers the dust collection hood, covering the feed inlet of the hopper to completely block it as much as possible. This absorbs the upward-scattering dust generated during the crushing process of PC particles, minimizing dust dispersion from the feed inlet and preventing environmental pollution. Compared to existing dust collection components installed inside the crusher, this utility model provides a first dust collection component at the feed inlet, maximizing dust absorption during the feeding and crushing process of PC particles, effectively improving dust collection efficiency. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the utility model in use. Figure 1 ;

[0017] Figure 2 This is a cross-sectional view of the utility model in use. Figure 2 .

[0018] Explanation of reference numerals in the attached figures:

[0019] 1- Crusher body, 11- Discharge port, 12- Particle screen, 13- Thin rubber pad;

[0020] 2-Crushing component, 21-Drive motor, 22-Rotating shaft, 23-Crushing blade;

[0021] 3-Feed hopper, 31-Installation slot;

[0022] 4-First dust collection component, 41-Dust collection hood, 42-Connecting pipe, 43-Corrugated dust collection pipe, 44-First dust screen, 45-Connecting housing, 46-Electric push rod, 47-First fan, 48-First dust collection container;

[0023] 5-Second dust collection component, 51-Arc-shaped dust duct, 52-Dust inlet pipe, 53-Second dust screen, 54-Mounting housing, 541-Exhaust port, 55-Second fan, 56-Second dust collection container;

[0024] 6-Supporting feet. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] See Figure 1-2 As shown, the scheme includes a crusher body 1, several crushing components 2 fixed on the crusher body 1, a feed hopper 3 connected to the upper surface of the crusher body 1, a first dust collection component 4 fixed on the feed hopper 3, a second dust collection component 5 fixed on the crusher body 1, and a support foot 6 fixed to the bottom of the crusher body 1; the inner bottom surface of the crusher body 1 is provided with a discharge port 11 and a particle screen 12 is fixed on the discharge port 11;

[0027] The feeding hopper 3 has an installation groove 31 on one side wall. The first dust collection assembly 4 includes a dust collection hood 41 hinged in the installation groove 31, a connecting pipe 42 connected to the back of the dust collection hood 41, a corrugated dust collection pipe 43 connected to the movable end of the connecting pipe 42, a first dust screen 44 fixed to the front side of the dust collection hood 41, a connecting housing 45 fixed to the outside of the feeding hopper 3, an electric push rod 46 fixed to the inner side wall of the connecting housing 45 and hinged at both ends to the back of the dust collection hood 41 and the inner side wall of the connecting housing 45 respectively, a first fan 47 fixed in the connecting housing 45, and a first dust collection container 48 detachably disposed in the connecting housing 45 and detachably connected to the first fan 47 and the corrugated dust collection pipe 43.

[0028] Furthermore, each of the crushing components 2 includes a drive motor 21 fixed outside the crusher body 1, a rotating shaft 22 connected to the output end of the drive motor 21 and rotatably extending through the side wall of the crusher into the crusher body 1, and a plurality of crushing blades 23 fixed to the outer peripheral wall of the rotating shaft 22 and spaced apart circumferentially along the rotating shaft 22. The crushing components 2 are arranged symmetrically in pairs. In this embodiment, the crushing components 2 are blade-type crushing components 2, which have a simple structure and high crushing efficiency. The number and arrangement of the crushing components 2 in this embodiment is a preferred implementation, but it is not limited to this. In other embodiments, different numbers of crushing components 2 and different arrangements can also be used, which are well known to those skilled in the art and can be easily implemented, and will not be described here.

[0029] Furthermore, the second dust collection assembly 5 includes an arc-shaped dust pipe 51 fixed to the side wall of the pulverizer body 1 and communicating with the internal space of the pulverizer body 1, a dust inlet pipe 52 whose front end passes through the side wall of the pulverizer body 1 and communicates with the arc-shaped dust pipe 51, a second dust screen 53 fixed at the air inlet position of the arc-shaped dust pipe 51, a mounting housing 54 fixed to the outside of the pulverizer body 1, a second fan 55 fixed inside the mounting housing 54, and a second dust collection container 56 detachably disposed inside the mounting housing 54 and detachably connected at both ends to the second fan 55 and the dust outlet pipe, respectively.

[0030] Furthermore, the first dust collection container 48 and the second dust collection container 56 have the same structure, both including a dust collection container body and an air inlet and an air outlet interface connected to the front and rear sides of the dust collection container body. The air inlet interface of the first dust collection container 48 is fixedly connected to the corrugated suction pipe 43 by rotation or snap-fit, ensuring that dust enters the first dust collection container 48 through the corrugated suction pipe 43. Its air inlet and outlet interfaces are connected to the air inlet of the first fan 47 through a rubber sealing ring. Clean air in the first dust collection container 48 enters the first fan 47 through this interface, and is then pressurized and discharged by the first fan 47. The second dust collection container 56 is connected to the second fan 55 and the dust outlet pipe according to the above steps. Furthermore, in this embodiment, the first dust collection container 48 and the second dust collection container 56 are set as dust boxes; the detachable connection between the dust box and the fan and the fan in this embodiment is well known to those skilled in the art and can be easily implemented, and will not be described again.

[0031] Furthermore, the pore size of the first dust screen 44 and the second dust screen 53 is less than 2.5 μm to facilitate the passage of ultrafine dust particles generated during the pulverization of PC material. Even further, the pore size of the particle screen 12 is designed according to the target particle size; generally, the pore size of the particle screen 12 is 3-10 mm.

[0032] Furthermore, a thin rubber pad 13 is provided on the inner bottom surface of the crusher body 1. Even further, the thickness of the thin rubber pad 13 is 5-10mm, which buffers impact, reduces equipment wear, and lowers noise and vibration.

[0033] Furthermore, an exhaust port 541 is provided on the mounting housing 54 at the position corresponding to the fan.

[0034] The working principle is roughly as follows:

[0035] like Figure 1 As described above, PC particles are fed into the first dust collection component 4 from the opposite side. By controlling the electric push rod 46, the electric push rod 46 is raised upward, and the PC particles pass through the gap between the dust collection hood 41 and the feed hopper 3. The first fan 47 works to generate negative pressure, which sucks the dust generated when the PC particles fall downward from the feed hopper 3 into the dust collection hood 41, and then into the first dust collection container 48 through the corrugated dust collection pipe 43. The PC particles are crushed in the crusher body 1 by the crushing component 2. The second fan 55 works to generate negative pressure, which sucks the particles generated during the crushing process into the arc-shaped dust pipe 51, and then into the second dust collection container 56 through the dust inlet pipe 52.

[0036] After all the PC particles are fed into the crusher body 1, the movable end of the electric push rod 46 extends, as... Figure 2As shown, at this time, the dust hood 41 completely covers the feed inlet of the feed hopper 3, absorbing the dust that rises during the crushing process and preventing dust from escaping from the feed inlet and affecting the working environment as much as possible.

[0037] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dust-proof PC material pulverizer, characterized in that: The device includes a crusher body (1), several crushing components (2) fixed on the crusher body (1), a feed hopper (3) connected to the upper surface of the crusher body (1), a first dust collection component (4) fixed on the feed hopper (3), a second dust collection component (5) fixed on the crusher body (1), and a support foot (6) fixed to the bottom of the crusher body (1); the crusher body (1) has an outlet (11) on its inner bottom surface and a particle screen (12) fixed on the outlet (11); The feeding hopper (3) has an installation groove (31) on one side wall. The first dust collection assembly (4) includes a dust collection hood (41) hinged in the installation groove (31), a connecting pipe (42) connected to the back of the dust collection hood (41), a corrugated dust collection pipe (43) connected to the movable end of the connecting pipe (42), a first dust screen (44) fixed to the front side of the dust collection hood (41), a connecting housing (45) fixed to the outside of the feeding hopper (3), an electric push rod (46) fixed to the inner side wall of the connecting housing (45) and hinged to the back of the dust collection hood (41) and the inner side wall of the connecting housing (45) at both ends, a first fan (47) fixed in the connecting housing (45), and a first dust collection container (48) detachably disposed in the connecting housing (45) and detachably connected to the first fan (47) and the corrugated dust collection pipe (43).

2. The dust-proof PC material pulverizer according to claim 1, characterized in that: Each of the crushing components (2) includes a drive motor (21) fixed outside the crusher body (1), a rotating shaft (22) that is driven and connected to the output end of the drive motor (21) and whose front end is rotatable, extending through the side wall of the crusher into the crusher body (1), and a number of crushing blades (23) fixed to the outer peripheral wall of the rotating shaft (22) and spaced apart along the circumference of the rotating shaft (22).

3. The dust-proof PC material pulverizer according to claim 1, characterized in that: The second dust collection assembly (5) includes an arc-shaped dust pipe (51) fixed on the side wall of the pulverizer body (1) and communicating with the internal space of the pulverizer body (1), a dust inlet pipe (52) whose front end passes through the side wall of the pulverizer body (1) and communicates with the arc-shaped dust pipe (51), a second dust screen (53) fixed at the air inlet of the arc-shaped dust pipe (51), a mounting housing (54) fixed on the outside of the pulverizer body (1), a second fan (55) fixed in the mounting housing (54), and a second dust collection container (56) detachably disposed in the mounting housing (54) and detachably connected at both ends to the second fan (55) and the dust outlet pipe, respectively.

4. The dust-proof PC material pulverizer according to claim 1, characterized in that: The aperture of the first dust screen (44) and the second dust screen (53) is less than 2.5 μm.

5. A dust-proof PC material pulverizer according to claim 1, characterized in that: The inner bottom surface of the crusher body (1) is also provided with a thin rubber pad (13).

6. A dust-proof PC material pulverizer according to claim 3, characterized in that: An exhaust port (541) is provided on the mounting housing (54) at the position corresponding to the fan.

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