A crusher with a discharge outlet pressure relief mechanism

Abstract

This utility model relates to the field of pulverizer technology and discloses a pulverizer with a discharge outlet pressure relief mechanism. It includes a feeding box, a pulverizing box, and a power box. The bottom of the feeding box is fixedly connected to the pulverizing box, the outer wall of the pulverizing box is fixedly connected to the power box, a support frame is fixedly connected to the top of the power box, and a control box is installed on the outer wall of the power box. A feeding port is provided on the top of the feeding box, and a discharge box is installed on the bottom of the pulverizing box. A collecting plate is provided on the top of the discharge box, and a discharge pipe is fixedly connected to the inner wall of the discharge box. The inner wall of the discharge pipe is connected to a fan through a cooling assembly, and the outer wall of the discharge pipe is connected to an air inlet pipe through a pressure relief assembly. A filter screen is installed on the inner side of the discharge pipe. In this utility model, the pulverizer discharge outlet is equipped with a pressure relief function. When pressure occurs in the pulverizer, it can relieve pressure to reduce internal pressure. Simultaneously, a cooling function is provided, which automatically activates during pressure relief to lower the discharge temperature and prevent residue from clogging the discharge pipe.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a crusher with a discharge outlet pressure relief mechanism. Background Technology

[0002] Recycled plastics are often processed by plastic shredders, transforming irregularly shaped materials into smaller plastic particles. This facilitates transportation and subsequent processing, promoting resource recycling. Typical plastic shredders use a pair of crushing rollers to tear the plastic entering between them into particles of roughly the same size as the distance between the rollers. However, during the crushing process, the high speed of the crushing rollers and the high-speed friction with the plastic generate a large amount of heat. Some of the plastic will crack under this heat, softening and becoming sticky, causing a sudden increase in internal pressure.

[0003] When the internal pressure increases, the plastic sticks to the discharge port and forms a blockage. It is necessary to quickly depressurize to avoid motor overload and bearing wear, and it is also necessary to cool down the inside of the crusher, which will affect the production efficiency. In order to address this technical problem, this application proposes a crusher with a discharge port depressurization mechanism. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a crusher with a discharge outlet pressure relief mechanism. The discharge outlet of this crusher is equipped with a pressure relief function, which can relieve pressure and reduce internal pressure when the crusher is under pressure. At the same time, a cooling function is set up, which automatically turns on during pressure relief to reduce the discharge temperature and prevent residue from clogging the discharge pipe.

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

[0006] A crusher with a discharge outlet pressure relief mechanism includes a feeding box, a crushing box, and a power box. The bottom of the feeding box is fixedly connected to the crushing box, the outer wall of the crushing box is fixedly connected to the power box, a support frame is fixedly connected to the top of the power box, a control box is installed on the outer wall of the power box, a feeding port is opened on the top of the feeding box, a discharge box is installed on the bottom of the crushing box, a collection plate is provided on the top of the discharge box, a discharge pipe is fixedly connected to the inner wall of the discharge box, the inner wall of the discharge pipe is connected to a fan through a cooling component, the outer wall of the discharge pipe is connected to an air inlet pipe through a pressure relief component, and a filter screen is installed on the inner side of the discharge pipe.

[0007] Furthermore, the cooling assembly includes multiple air nozzles installed on the inner wall of the discharge pipe, with an annular branch pipe fixedly connected to the input end of each air nozzle, a main air duct fixedly connected to the outer wall of the annular branch pipe, and the input end of the main air duct connected to a fan.

[0008] Furthermore, the pressure relief assembly includes a pressure relief pipe fixedly connected to the outer wall of the discharge pipe, a piston slidably connected to the inner wall of the pressure relief pipe, a push rod fixedly connected to the outer wall of the piston, a cylinder provided at the end of the push rod, a spring sleeved on the outer wall of the push rod, and the bottom side of the pressure relief pipe fixedly connected to the air inlet pipe.

[0009] Furthermore, one end of the spring is connected to the piston, and the other end of the spring is connected to the pressure relief pipe.

[0010] Furthermore, the outer wall of the cylinder is mounted on the inner wall of the crushing chamber via a fixed bracket.

[0011] Furthermore, the outer wall of the fan is directly connected to the inner wall of the right side of the crushing box by fixing, and the outer wall of the air inlet pipe is connected to the outer wall of the bottom side of the crushing box.

[0012] Furthermore, the end of the support frame is connected to the outer wall of the feed box, and the bottom of the crushing box and the power box are fixedly connected with support columns.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the discharge port of the crusher is equipped with a pressure relief component. When the internal plastic melting pressure of the crusher increases, the pressure relief component opens to relieve pressure, reduce the internal pressure of the crusher, and prevent the equipment from being overloaded.

[0015] 2. In this utility model, the discharge port of the crusher is equipped with a cooling component, which automatically opens when the pressure is released. The temperature of the discharged material is reduced through multiple annular air ducts to prevent the plastic from sticking to the discharge port at high temperature and causing residue to block the discharge pipe. Attached Figure Description

[0016] Figure 1 This is a perspective view of a crusher with a discharge outlet pressure relief mechanism proposed in this utility model;

[0017] Figure 2 This is a bottom structural diagram of a crusher with a discharge outlet pressure relief mechanism proposed in this utility model;

[0018] Figure 3 This utility model provides a diagram of the discharge box of a crusher with a discharge outlet pressure relief mechanism.

[0019] Figure 4 This is a diagram of a cooling assembly for a pulverizer with a discharge outlet pressure relief mechanism, as proposed in this utility model.

[0020] Figure 5 This is a diagram of the pressure relief component of a crusher with a discharge outlet pressure relief mechanism proposed in this utility model.

[0021] Legend:

[0022] 1. Feed box; 2. Crushing box; 3. Power box; 4. Support frame; 5. Control box; 6. Support column; 7. Feed inlet; 8. Fan; 9. Discharge box; 10. Discharge pipe; 11. Air inlet pipe; 12. Collection plate; 13. Main air duct; 14. Annular branch pipe; 15. Air nozzle; 16. Filter screen; 17. Cylinder; 18. Pressure relief pipe; 19. Push rod; 20. Spring; 21. Piston. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3 An embodiment of this utility model provides a crusher with a discharge outlet pressure relief mechanism, comprising a feeding box 1, a crushing box 2, and a power box 3. The bottom side of the feeding box 1 is fixedly connected to the crushing box 2, the outer wall of the crushing box 2 is fixedly connected to the power box 3, a support frame 4 is fixedly connected to the top side of the power box 3, a control box 5 is installed on the outer wall of the power box 3, a feeding port 7 is opened on the top side of the feeding box 1, a discharge box 9 is installed on the bottom side of the crushing box 2, a collection plate 12 is provided on the top side of the discharge box 9, a discharge pipe 10 is fixedly connected to the inner wall of the discharge box 9, the inner wall of the discharge pipe 10 is connected to a fan 8 through a cooling component, the outer wall of the discharge pipe 10 is connected to an air inlet pipe 11 through a pressure relief component, and a filter screen 16 is installed on the inner side of the discharge pipe 10.

[0025] Specifically, the plastic to be crushed is placed into the feed box 1 through the feed inlet 7. The feed box 1 will send the plastic into the crushing box 2. The motor in the power box 3 is turned on through the control box 5. The motor in the power box 3 will drive the crushing roller in the crushing box 2 to crush the plastic through the transmission component. Then the crushed plastic falls into the discharge box 9 through the collection plate 12 and is discharged through the discharge pipe 10. When the crushing roller has been crushing for a long time, it will generate heat and the plastic will heat up and melt, becoming sticky. At this time, the pressure relief component is opened to relieve the pressure on the discharge pipe 10, reduce the pressure on the inner wall, and at the same time, the cooling component operates, lowering the temperature of the plastic and speeding up the discharge speed. Meanwhile, the filter screen 16 can prevent plastic from entering the inner wall of the component and affecting the operation of the component.

[0026] Reference Figures 3-5The cooling assembly includes multiple air nozzles 15 installed on the inner wall of the discharge pipe 10. The input end of the air nozzle 15 is fixedly connected to an annular branch pipe 14. The outer wall of the annular branch pipe 14 is fixedly connected to a main air duct 13. The input end of the main air duct 13 is connected to a fan 8. The fan 8 draws air in from the outer wall, delivers it into the annular branch pipe 14 through the main air duct 13, and then discharges it through the multiple air nozzles 15 to cool the crushed plastic in the discharge pipe 10.

[0027] The pressure relief assembly includes a pressure relief pipe 18 fixedly connected to the outer wall of the discharge pipe 10. A piston 21 is slidably connected to the inner wall of the pressure relief pipe 18. A push rod 19 is fixedly connected to the outer wall of the piston 21. A cylinder 17 is provided at the end of the push rod 19. A spring 20 is sleeved on the outer wall of the push rod 19. The bottom side of the pressure relief pipe 18 is fixedly connected to the air inlet pipe 11. One end of the spring 20 is connected to the piston 21, and the other end of the spring 20 is connected to the pressure relief pipe 18. The outer wall of the cylinder 17 is installed on the inner wall of the crushing box 2 through a fixed bracket. The spring 20 is a gradually changing stiffness pressure spring. By setting the pressure of the spring 20, when the pressure in the discharge pipe 10 rises, the piston 21 pushes the push rod 19 to retract and expose the air inlet pipe 11. A one-way valve is provided at the end of the air inlet pipe 11, allowing gas to enter but not exit. Subsequently, air will enter from the air inlet pipe 11, reducing the pressure in the discharge pipe 10. The pressure relief threshold can be controlled by the cylinder 17 to regulate the pressure on the inner wall.

[0028] The outer wall of the blower 8 is directly connected to the inner wall of the right side of the crushing box 2 by a fixed connection. The blower 8 is used to draw in air. The outer wall of the air inlet pipe 11 is connected to the outer wall of the bottom side of the crushing box 2. The end of the support frame 4 is connected to the outer wall of the feed box 1. The support frame 4 is used to support the feed box 1. The bottom sides of the crushing box 2 and the power box 3 are fixedly connected to the support column 6, which is used to support the crusher.

[0029] Working principle: The plastic to be crushed is put into the feed box 1 through the feed inlet 7. The feed box 1 will send the plastic into the crushing box 2. The motor in the power box 3 is turned on through the control box 5. The motor in the power box 3 drives the belt to rotate through the gear on the drive end. The belt drives the crushing roller in the crushing box 2 to rotate and crush the plastic. Then the crushed plastic falls into the discharge box 9 through the collection plate 12 and is discharged through the discharge pipe 10. When the crushing roller has been crushing for a long time, it will generate heat, and the plastic will heat up and melt, becoming sticky. At this time, the pressure pushes the piston 21 to drive the push rod 1. 9. The intake pipe 11 is exposed by contraction, and air will then enter through the intake pipe 11, reducing the pressure of the discharge pipe 10. The pressure relief threshold can be controlled by the cylinder 17 to regulate the pressure on the inner wall. At the same time, the fan 8 draws air from the outer wall and delivers it into the annular branch pipe 14 through the main air pipe 13. Then it is discharged through multiple air nozzles 15 to cool down the crushed plastic in the discharge pipe 10 and speed up the discharge speed. Meanwhile, the filter screen 16 installed on the discharge pipe 10 can prevent plastic from entering the air nozzles 15 and the pressure relief pipe 18, which would affect the operation of the fan 8 and block the pressure relief pipe 18.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pulverizer with a discharge outlet pressure relief mechanism, characterized in that: The device includes a feeding box (1), a crushing box (2), and a power box (3). The bottom side of the feeding box (1) is fixedly connected to the crushing box (2). The outer wall of the crushing box (2) is fixedly connected to the power box (3). A support frame (4) is fixedly connected to the top side of the power box (3). A control box (5) is installed on the outer wall of the power box (3). A feed inlet (7) is opened on the top side of the feeding box (1). A discharge box (9) is installed on the bottom side of the crushing box (2). A collection plate (12) is provided on the top side of the discharge box (9). A discharge pipe (10) is fixedly connected to the inner wall of the discharge box (9). The inner wall of the discharge pipe (10) is connected to a fan (8) through a cooling component. The outer wall of the discharge pipe (10) is connected to an air inlet pipe (11) through a pressure relief component. A filter screen (16) is installed on the inner side of the discharge pipe (10).

2. The pulverizer with a discharge outlet pressure relief mechanism according to claim 1, characterized in that: The cooling assembly includes multiple air nozzles (15) installed on the inner wall of the discharge pipe (10). The input end of the air nozzle (15) is fixedly connected to an annular branch pipe (14). The outer wall of the annular branch pipe (14) is fixedly connected to a main air duct (13). The input end of the main air duct (13) is connected to a fan (8).

3. A crusher with a discharge outlet pressure relief mechanism according to claim 1, characterized in that: The pressure relief assembly includes a pressure relief pipe (18) fixedly connected to the outer wall of the discharge pipe (10), a piston (21) slidably connected to the inner wall of the pressure relief pipe (18), a push rod (19) fixedly connected to the outer wall of the piston (21), a cylinder (17) provided at the end of the push rod (19), a spring (20) sleeved on the outer wall of the push rod (19), and the bottom side of the pressure relief pipe (18) fixedly connected to the air inlet pipe (11).

4. A crusher with a discharge outlet pressure relief mechanism according to claim 3, characterized in that: One end of the spring (20) is connected to the piston (21), and the other end of the spring (20) is connected to the pressure relief pipe (18).

5. A crusher with a discharge outlet pressure relief mechanism according to claim 3, characterized in that: The outer wall of the cylinder (17) is mounted on the inner wall of the crushing box (2) by a fixed bracket.

6. A pulverizer with a discharge outlet pressure relief mechanism according to claim 1, characterized in that: The outer wall of the fan (8) is directly connected to the inner wall of the right side of the crushing box (2) by fixing, and the outer wall of the air inlet pipe (11) is connected to the outer wall of the bottom side of the crushing box (2).

7. A crusher with a discharge outlet pressure relief mechanism according to claim 1, characterized in that: The end of the support frame (4) is connected to the outer wall of the feed box (1), and the bottom of the crushing box (2) and the power box (3) are fixedly connected to the support column (6).

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