High-safety crushing device

Abstract

The utility model relates to a high-safety crushing device which comprises a conveying hopper, a feeding frame, a crusher, a discharging slide way, a material collecting box, an elevator and a material carrying barrel, the conveying hopper is vertically arranged, a sealing plate is arranged at the top end of the conveying hopper, an exhaust pipe is arranged on the sealing plate, one end of the exhaust pipe is communicated with the interior of the conveying hopper, and the other end of the exhaust pipe is communicated with the material collecting box. The other end of the exhaust pipe is externally connected with waste gas treatment equipment; the feeding frame is obliquely arranged on the side wall of the conveying hopper, a feeding port is formed in the end, away from the conveying hopper, of the feeding frame, and a first hydraulic inserting plate door is arranged at the feeding port. The crusher is arranged below the conveying hopper, a bottom opening of the conveying hopper is in butt joint and communicated with an inlet of the crusher, and the top end of the discharging sliding way is in butt joint and communicated with an outlet of the crusher. The elevator is arranged beside the feeding frame, a roller conveyor is arranged on a carrying platform of the elevator, the carrying barrel is arranged on a conveying roller of the roller conveyor, and the solid waste is arranged in the carrying barrel. The crushing device has the effect of improving the safety of the crushing device.

Description

Technical Field

[0001] The utility model relates to the field of crushing devices, in particular to a crushing device with high safety. Background Art

[0002] Solid waste refers to solid, semi-solid and gaseous items and substances in containers that have lost their original utilization value or have not lost their utilization value but have been discarded or abandoned in the process of production, life and other activities, as well as items and substances that are included in waste management according to laws and administrative regulations. Solid waste usually needs to be crushed by crushing equipment to break the solid waste into a certain size, so as to reduce the amount of solid waste generated, reduce the volume of solid waste, and reduce or eliminate its hazardous components.

[0003] In the related art, the crushing device includes a material elevator, a grab bucket, an upper feed hopper, a buffer hopper, a crusher, and a discharge chute. The material elevator lifts the solid waste to the opening of the upper feed hopper, and the grab bucket grabs the solid waste into the feed hopper. The solid waste enters the crusher through the buffer hopper, and the crusher crushes the solid waste. The crushed material enters the aggregate box or enters the next process through the discharge chute.

[0004] In the above process, after the materials are put into the opening of the upper feed hopper by the elevator and the grab bucket, the solid waste is directly crushed in the form of free falling. Since the opening of the upper feed hopper is not sealed, the waste gas overflows during the crushing process, which is easy to cause air pollution; and the air can enter the crusher through the opening of the upper feed hopper and contact the waste. When there are hazardous wastes in the solid waste, such as flammable hazardous wastes, the contact between the air and the high-speed falling hazardous wastes may cause an explosion. Therefore, the safety of the crushing device needs to be improved. Utility Model Content

[0005] In order to solve the above technical solution, the present application provides a highly safe crushing device.

[0006] The present application provides a high-safety crushing device adopts the following technical solution:

[0007] A high-safety crushing device, comprising a feed hopper, a feed frame, a crusher, a material discharge chute, a material collection box, an elevator, and a loading bucket, wherein the feed hopper is vertically arranged, a sealing plate is arranged at the top of the feed hopper, the sealing plate covers the top opening of the feed hopper, an exhaust pipe is arranged on the sealing plate, one end of the exhaust pipe is connected to the inside of the feed hopper, and the other end of the exhaust pipe is externally connected to an exhaust gas treatment device;

[0008] The feed frame is obliquely arranged on the side wall of the feed hopper, the feed frame is connected to the inside of the feed hopper, the end of the feed frame away from the feed hopper is the highest end of the feed frame, the end of the feed frame away from the feed hopper is provided with a feed port, and the feed port is provided with a first hydraulic gate;

[0009] The crusher is arranged below the feeding hopper, the bottom opening of the feeding hopper is connected to and communicated with the inlet of the crusher, the top of the discharge chute is connected to and communicated with the outlet of the crusher, and the collecting box is arranged below the discharge chute;

[0010] The elevator is arranged next to the feed frame, a roller conveyor is arranged on the loading platform of the elevator, the loading bucket is arranged on the conveying roller of the roller conveyor, the loading bucket is in the shape of a round barrel, the axis of the loading bucket is arranged horizontally and parallel to the conveying roller of the roller conveyor, solid waste is arranged in the loading bucket, and the loading bucket is arranged in a sealed manner.

[0011] By adopting the above technical scheme, the hoist lifts the loading bucket to the feeding port of the feeding frame, the first hydraulic gate is opened to open the feeding port of the feeding frame, and then the roller conveyor is started, the conveying roller of the roller conveyor rotates, and the loading bucket is conveyed to the feeding frame, and the loading bucket enters the feed hopper and crusher together with the solid waste, and the solid waste passing through the crusher finally enters the collecting box along the unloading chute. After the loading bucket enters the feeding frame, the hoist controls the roller conveyor to descend to its original position and closes the first hydraulic gate, and the waste gas generated enters the waste gas treatment equipment along the exhaust pipe for subsequent treatment, so as to avoid the waste gas overflow and cause air pollution; the inclined feeding frame provides a buffer for the solid waste falling process, avoids the solid waste falling too fast, and the outside air is not easy to enter the feeding hopper, which reduces the possibility of explosion caused by the contact between air and the hazardous waste falling at high speed, and improves the safety of the crushing device.

[0012] Preferably, a limit switch is provided on the hoist, the limit switch is electrically connected to the driving source of the first hydraulic plug-in door, and the limit switch is located near the feed port of the feed frame;

[0013] When the loading platform of the hoist rises to contact with the limit switch, the driving source of the first hydraulic plug-in door controls the door body of the first hydraulic plug-in door to open, so that the feeding port of the feeding frame is opened;

[0014] When the loading platform of the hoist descends to the point where it is out of contact with the limit switch, the driving source of the first hydraulic plug-in door controls the door body of the first hydraulic plug-in door to close, so that the feed port of the feed frame is closed.

[0015] By adopting the above technical scheme, when the loading platform of the elevator rises to contact with the limit switch, the driving source of the first hydraulic plug door controls the door body of the first hydraulic plug door to open, so that the feed port of the feed frame is opened; when the loading platform of the elevator descends to disengage from the limit switch, the driving source of the first hydraulic plug door controls the door body of the first hydraulic plug door to close, so that the feed port of the feed frame is closed, thereby improving the automation of opening and closing of the feed port at the feed frame.

[0016] Preferably, a first baffle is fixedly provided at one end of the roller conveyor away from the feed frame, a second baffle is lifted and lowered at one end of the roller conveyor close to the feed frame, a lifting cylinder is provided on the top surface of the frame of the roller conveyor, a piston rod of the lifting cylinder is connected to the side wall of the second baffle through a connecting plate, the lifting cylinder drives the second baffle to rise and fall, and the second baffle rises to the top of the carrier bucket or falls to prevent the carrier bucket from leaving the roller conveyor;

[0017] The limit switch is also electrically connected to the lifting cylinder, and the lifting cylinder operates synchronously with the driving source of the first hydraulic plug-in door. When the driving source of the first hydraulic plug-in door drives the door body of the first hydraulic plug-in door to open, the lifting cylinder synchronously drives the second baffle to rise. When the driving source of the first hydraulic plug-in door drives the door body of the first hydraulic plug-in door to close, the lifting cylinder synchronously drives the second baffle to fall.

[0018] By adopting the above technical solution, under the action of the first baffle and the second baffle, the loading bucket cannot be separated from the roller conveyor, and when the loading platform of the elevator rises to contact with the limit switch, the driving source of the first hydraulic plug-in door controls the door body of the first hydraulic plug-in door to open, and the lifting cylinder synchronously drives the second baffle to rise, and then starts the roller conveyor, so that the loading bucket can be transported to the feed frame with solid waste.

[0019] Preferably, the unloading chute is arranged at an inclination, and the end of the unloading chute close to the crusher is the highest end of the unloading chute.

[0020] By adopting the above technical solution, compared with the vertical setting, the inclined discharge chute provides a buffer for the discharge process of solid waste, further improving the safety of the crushing device.

[0021] Preferably, a discharge port is provided at the bottom end of the discharge chute, and a second hydraulic plug-in door is provided at the discharge port of the discharge chute.

[0022] By adopting the above technical scheme, the driving source of the second hydraulic plug door can be controlled to drive the door body of the second hydraulic plug door to cover the area of ​​the discharge port of the unloading slide according to the actual situation, so as to adjust the size of the discharge port according to the unloading situation. When a dangerous situation occurs, such as flames or burning smells, the door body of the second hydraulic plug door is driven to completely close the discharge port to isolate the air, thereby achieving a fire prevention effect.

[0023] Preferably, a third hydraulic gate is provided on the side wall of the feed hopper, and a clearance groove for the door body of the third hydraulic gate to pass through is opened on the side wall of the feed hopper, and the clearance groove is connected to the inside of the feed hopper.

[0024] By adopting the above technical solution, the driving source of the third hydraulic plug door is controlled to drive the door body of the third hydraulic plug door to slide according to actual conditions to change the exhaust gas discharge speed. When a dangerous situation occurs, the door body of the third hydraulic plug door is driven to completely close the feed hopper to isolate the air, thereby further achieving a fire prevention effect.

[0025] Preferably, the feed hopper is connected with an air inlet pipe, the air inlet pipe is arranged at the top and the middle of the feed hopper, and one end of the air inlet pipe away from the feed hopper is externally connected to nitrogen.

[0026] By adopting the above technical solution, nitrogen enters the feed hopper to protect the crushing process, further prevents fire and explosion, and improves the safety of the crushing device.

[0027] Preferably, the conveying hopper is connected with an air pipe, the air pipe is arranged in the middle of the conveying hopper, and one end of the air pipe away from the conveying hopper is externally connected to a carbon dioxide fire extinguishing system.

[0028] By adopting the above technical solution, when a fire has started, the carbon dioxide fire extinguishing system is started to pump carbon dioxide into the feed hopper to extinguish the fire.

[0029] Preferably, a first one-way valve is provided on the exhaust pipe, and the first one-way valve allows the exhaust gas in the feed hopper to enter the exhaust gas treatment equipment;

[0030] The air inlet pipe is provided with a second one-way valve, which allows nitrogen to enter the feed hopper; the air delivery pipe is provided with a third one-way valve, which allows carbon dioxide to enter the feed hopper.

[0031] By adopting the above technical solution, the first one-way valve is set to prevent air from entering the hopper through the exhaust pipe, the second one-way valve is set to prevent waste gas from entering the nitrogen gas source from the hopper, and the third one-way valve is set to prevent waste gas from entering the carbon dioxide fire extinguishing system from the hopper.

[0032] In summary, this application includes the following beneficial technical effects:

[0033] 1. The hoist lifts the loading bucket to the feeding port of the feeding frame, the first hydraulic gate opens, the feeding port of the feeding frame is opened, and then the roller conveyor is started. The conveying roller of the roller conveyor rotates to transport the loading bucket to the feeding frame. The loading bucket enters the feed hopper and crusher together with the solid waste. The solid waste after the crusher finally enters the collecting box along the unloading chute. After the loading bucket enters the feeding frame, the hoist controls the roller conveyor to descend to its original position and closes the first hydraulic gate. The waste gas generated enters the waste gas treatment equipment along the exhaust pipe for subsequent treatment to avoid waste gas overflow and air pollution; the inclined feeding frame provides a buffer for the solid waste falling process to avoid the solid waste falling too fast, and the outside air is not easy to enter the feeding hopper, which reduces the possibility of explosion caused by the contact between air and high-speed falling hazardous waste, and improves the safety of the crushing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a high-safety crushing device in an embodiment of the present application. From this perspective, the elevator is located behind the feeder.

[0035] Figure 2 This is a schematic diagram of the overall structure of a high-safety crushing device in an embodiment of the present application. From this perspective, the elevator is located in front of the feeder.

[0036] Explanation of the reference numerals in the accompanying drawings: 1. Feed hopper; 11. Sealing plate; 12. Exhaust pipe; 121. First non-return valve; 13. Third hydraulic plug-in door; 14. Give way groove; 15. Inlet pipe; 151. Second non-return valve; 16. Gas pipe; 161. Third non-return valve; 17. Inspection door; 2. Feed frame; 21. First hydraulic plug-in door; 3. Crusher; 4. Unloading chute; 41. Discharge port; 42. Second hydraulic plug-in door; 5. Collecting box; 6. Hoist; 61. Loading platform; 7. Loading bucket; 8. Roller conveyor; 81. First baffle; 82. Second baffle; 83. Lifting cylinder; 9. Carbon dioxide fire extinguishing system. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-2 This application is described in further detail.

[0038] The embodiment of the present application discloses a crushing device with high safety.

[0039] Reference Figure 1-2The high-safety crushing device includes a feed hopper 1, a feed frame 2, a crusher 3, a discharge chute 4, a collection box 5, an elevator 6, and a loading bucket 7. The feed hopper 1 is vertically arranged, and a sealing plate 11 is arranged at the top of the feed hopper 1. The sealing plate 11 completely covers the top opening of the feed hopper 1 to seal the top of the feed hopper 1. An exhaust pipe 12 is arranged on the sealing plate 11. One end of the exhaust pipe 12 is connected to the inside of the feed hopper 1, and the other end of the exhaust pipe 12 is externally connected to the exhaust gas treatment device. A first one-way valve 121 is arranged on the exhaust pipe 12. The first one-way valve 121 allows the exhaust gas in the feed hopper 1 to enter the exhaust gas treatment device to prevent air from entering the feed hopper 1 from the exhaust pipe 12.

[0040] The feed frame 2 is obliquely arranged on the side wall of the hopper 1, and the feed frame 2 is connected to the inside of the hopper 1. The end of the feed frame 2 away from the hopper 1 is the highest end of the feed frame 2. The end of the feed frame 2 away from the hopper 1 is provided with a feed port, and a first hydraulic plug gate 21 is provided at the feed port.

[0041] The crusher 3 is arranged below the feed hopper 1, the bottom opening of the feed hopper 1 is connected to and communicated with the inlet of the crusher 3, the top of the discharge chute 4 is connected to and communicated with the outlet of the crusher 3, and the collection box 5 is arranged below the discharge chute 4.

[0042] The elevator 6 is arranged beside the feed frame 2, and a roller conveyor 8 is arranged on the loading platform 61 of the elevator 6, and a loading bucket 7 is arranged on the conveying roller of the roller conveyor 8. The loading bucket 7 is in the shape of a cylinder, and the axis of the loading bucket 7 is arranged horizontally and parallel to the conveying roller of the roller conveyor 8. The solid waste is arranged in the loading bucket 7, and the loading bucket 7 is arranged in a closed manner. The loading bucket 7 and the solid waste are crushed by the crusher 3 together. When the roller conveyor 8 rises to the feed port of the feed frame 2 along with the loading platform 61, the end of the roller conveyor 8 close to the feed frame 2 is close to the feed port of the feed frame 2, so that the loading bucket 7 can be smoothly conveyed into the feed frame 2.

[0043] The hoist 6 lifts the loading bucket 7 to the feeding port of the feeding frame 2, the first hydraulic gate 21 opens, the feeding port of the feeding frame 2 is opened, and then the roller conveyor 8 is started. The conveying roller of the roller conveyor 8 rotates to convey the loading bucket 7 to the feeding frame 2. The loading bucket 7 enters the feeding hopper 1 and the crusher 3 together with the solid waste. The solid waste passing through the crusher 3 finally enters the collecting box 5 along the unloading chute 4. After the loading bucket 7 enters the feeding frame 2, the hoist 6 controls the roller conveyor 8 to descend to the original position and closes the first hydraulic gate 21. The waste gas generated enters the waste gas treatment equipment along the exhaust pipe 12 for subsequent treatment, avoiding the waste gas overflow and causing air pollution. The inclined feeding frame 2 provides a buffer for the solid waste dropping process, avoiding the solid waste dropping too fast, and the outside air is not easy to enter the feeding hopper 1, reducing the possibility of explosion caused by the contact between air and the dangerous waste dropping at high speed, and improving the safety of the crushing device.

[0044] A limit switch is provided on the hoist 6, and the limit switch is electrically connected to the driving source of the first hydraulic gate door 21, and the limit switch is located near the feed port of the feed frame 2. When the loading platform 61 of the hoist 6 rises to contact with the limit switch, the driving source of the first hydraulic gate door 21 controls the door body of the first hydraulic gate door 21 to open, so that the feed port of the feed frame 2 is opened, and when the loading platform 61 of the hoist 6 descends to disengage from the limit switch, the driving source of the first hydraulic gate door 21 controls the door body of the first hydraulic gate door 21 to close, so that the feed port of the feed frame 2 is closed, thereby improving the automation of opening and closing the feed port at the feed frame 2.

[0045] The first baffle 81 is fixedly provided at one end of the roller conveyor 8 away from the feed frame 2, and the second baffle 82 is lifted and lowered at one end of the roller conveyor 8 close to the feed frame 2. A lifting cylinder 83 is provided on the top surface of the frame of the roller conveyor 8, and the piston rod of the lifting cylinder 83 is connected to the side wall of the second baffle 82 through a connecting plate. The lifting cylinder 83 drives the second baffle 82 to rise and fall, and the second baffle 82 rises to the top of the carrier bucket 7 or falls to prevent the carrier bucket 7 from leaving the roller conveyor 8. Under the action of the first baffle 81 and the second baffle 82, the carrier bucket 7 cannot leave the roller conveyor 8.

[0046] The limit switch is also electrically connected to the lifting cylinder 83, and the lifting cylinder 83 operates synchronously with the driving source of the first hydraulic gate 21. When the loading platform 61 of the hoist 6 rises to contact the limit switch, the driving source of the first hydraulic gate 21 controls the door body of the first hydraulic gate 21 to open, and the lifting cylinder 83 synchronously drives the second baffle 82 to rise, and then starts the roller conveyor 8, so that the loading bucket 7 can be transported to the feed frame 2 with solid waste. When the driving source of the first hydraulic gate 21 drives the door body of the first hydraulic gate 21 to close, the lifting cylinder 83 synchronously drives the second baffle 82 to descend.

[0047] The unloading chute 4 is arranged at an inclination, and the end of the unloading chute 4 close to the crusher 3 is the highest end of the unloading chute 4. Compared with the vertical arrangement, the inclined unloading chute 4 provides a buffer for the unloading process of the solid waste, further improving the safety of the crushing device.

[0048] The bottom end of the unloading chute 4 is provided with a discharge port 41, and a second hydraulic gate 42 is provided at the discharge port 41 of the unloading chute 4. According to actual conditions, the driving source of the second hydraulic gate 42 can be controlled to drive the door body of the second hydraulic gate 42 to cover the area of ​​the discharge port 41 of the unloading chute 4, so as to adjust the size of the discharge port 41 according to the unloading conditions. When a dangerous situation occurs, such as a flame or a burning smell, the door body of the second hydraulic gate 42 is driven to completely close the discharge port 41 to isolate the air, thereby achieving a fire prevention effect.

[0049] A third hydraulic gate door 13 is provided on the side wall of the feed hopper 1. A clearance groove 14 is provided on the side wall of the feed hopper 1 for the door body of the third hydraulic gate door 13 to penetrate. The clearance groove 14 is communicated with the inside of the feed hopper 1. The feed hopper 1 has four side walls. The clearance groove 14 penetrates three adjacent side walls of the feed hopper 1. The door frame of the third hydraulic gate door 13 is fixedly connected to the outer side wall of the feed hopper 1, and the door frame of the third hydraulic gate door 13 covers the openings on the opposite sides of the feed hopper 1 penetrated by the clearance groove 14. The door body of the third hydraulic gate door 13 seals the middle opening of the feed hopper 1 penetrated by the clearance groove 14, so that the middle part of the feed hopper 1 remains sealed to prevent gas from overflowing. According to the actual situation, the driving source of the third hydraulic plug door 13 is controlled to drive the door body of the third hydraulic plug door 13 to slide, so as to change the exhaust speed of the exhaust gas. When a dangerous situation occurs, the door body of the third hydraulic plug door 13 is driven to completely close the feed hopper 1 to isolate the air, thereby further achieving a fire prevention effect.

[0050] In the present embodiment, the driving sources of the first hydraulic plug-in door 21, the second hydraulic plug-in door 42 and the third hydraulic plug-in door 13 are all oil cylinders, and the door bodies of the first hydraulic plug-in door 21, the second hydraulic plug-in door 42 and the third hydraulic plug-in door 13 are all stainless steel fireproof doors.

[0051] The feed hopper 1 is connected with an air inlet pipe 15, which is arranged at the top and middle of the feed hopper 1. One end of the air inlet pipe 15 away from the feed hopper 1 is connected to nitrogen. The nitrogen enters the feed hopper 1 to protect the crushing process, further prevent fire and explosion, and improve the safety of the crushing device. A second one-way valve 151 is arranged on the air inlet pipe 15, and the second one-way valve 151 allows nitrogen to enter the feed hopper 1 to prevent waste gas from entering the nitrogen gas source from the feed hopper 1.

[0052] The feed hopper 1 is connected to a gas pipe 16, which is arranged in the middle of the feed hopper 1. One end of the gas pipe 16 away from the feed hopper 1 is externally connected to a carbon dioxide fire extinguishing system 9. When a fire has started, the carbon dioxide fire extinguishing system 9 is started to pump carbon dioxide into the feed hopper 1 to extinguish the fire. A third one-way valve 161 is arranged on the gas pipe 16, which allows carbon dioxide to enter the feed hopper 1 to prevent waste gas from entering the carbon dioxide fire extinguishing system 9 from the feed hopper 1.

[0053] An inspection door 17 is provided at the connection between the feed frame 2 and the feed hopper 1 to facilitate the staff to inspect the feed frame 2, the feed hopper 1 and the crusher 3.

[0054] The implementation principle of a high-safety crushing device in the embodiment of the present application is:

[0055] The hoist 6 lifts the loading bucket 7 to the feeding port of the feeding frame 2. When the loading platform 61 of the hoist 6 rises to contact with the limit switch, the driving source of the first hydraulic plug-in door 21 controls the door body of the first hydraulic plug-in door 21 to open, and the lifting cylinder 83 synchronously drives the second baffle 82 to rise. The lifting cylinder 83 synchronously drives the second baffle 82 to rise, and then starts the roller conveyor 8. The conveying rollers of the roller conveyor 8 rotate to transport the loading bucket 7 with solid waste into the feeding frame 2. The loading bucket 7 and the solid waste enter the feed hopper 1 and the crusher 3 together. The loading bucket 7 and the solid waste are crushed together through the crusher 3, and finally enter the collecting box 5 along the unloading chute 4.

[0056] After the loading bucket 7 enters the feed frame 2, the loading platform 61 of the elevator 6 descends until it is out of contact with the limit switch, and the driving source of the first hydraulic plug door 21 controls the door body of the first hydraulic plug door 21 to close, so that the feed port of the feed frame 2 is closed, and at the same time, the lifting cylinder 83 synchronously drives the second baffle 82 to descend, and finally the elevator 6 controls the roller conveyor 8 to descend to its original position.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-safety crushing device, characterized in that: It comprises a feed hopper (1), a feed frame (2), a crusher (3), a feed chute (4), a collection box (5), an elevator (6), and a loading bucket (7); the feed hopper (1) is arranged vertically, a sealing plate (11) is arranged at the top of the feed hopper (1), the sealing plate (11) covers the top opening of the feed hopper (1), an exhaust pipe (12) is arranged on the sealing plate (11), one end of the exhaust pipe (12) is connected to the inside of the feed hopper (1), and the other end of the exhaust pipe (12) is externally connected to an exhaust gas treatment device; The feed frame (2) is obliquely arranged on the side wall of the feed hopper (1), the feed frame (2) is connected to the inside of the feed hopper (1), the end of the feed frame (2) away from the feed hopper (1) is the highest end of the feed frame (2), the end of the feed frame (2) away from the feed hopper (1) is provided with a feed port, and the feed port is provided with a first hydraulic plug gate (21); The crusher (3) is arranged below the feed hopper (1), the bottom opening of the feed hopper (1) is connected to and communicated with the inlet of the crusher (3), the top of the discharge chute (4) is connected to and communicated with the outlet of the crusher (3), and the collection box (5) is arranged below the discharge chute (4); The elevator (6) is arranged beside the feed frame (2); a roller conveyor (8) is arranged on the loading platform (61) of the elevator (6); the loading bucket (7) is arranged on the conveying roller of the roller conveyor (8); the loading bucket (7) is in the shape of a round barrel; the axis of the loading bucket (7) is arranged horizontally and parallel to the conveying roller of the roller conveyor (8); solid waste is arranged in the loading bucket (7); and the loading bucket (7) is arranged in a sealed manner.

2. The high-safety crushing device according to claim 1, characterized in that: The hoist (6) is provided with a limit switch, the limit switch is electrically connected to a driving source of the first hydraulic plug-in door (21), and the limit switch is located near the feed port of the feed frame (2); When the loading platform (61) of the hoist (6) rises to contact the limit switch, the driving source of the first hydraulic plug-in door (21) controls the door body of the first hydraulic plug-in door (21) to open, so that the feed port of the feed frame (2) is opened; When the loading platform (61) of the hoist (6) descends to the point where it is out of contact with the limit switch, the driving source of the first hydraulic plug door (21) controls the door body of the first hydraulic plug door (21) to close, thereby closing the feed port of the feed frame (2).

3. The high-safety crushing device according to claim 2, characterized in that: A first baffle (81) is fixedly provided at one end of the roller conveyor (8) away from the feed frame (2), and a second baffle (82) is lifted and lowered at one end of the roller conveyor (8) close to the feed frame (2). A lifting cylinder (83) is provided on the top surface of the frame of the roller conveyor (8), and a piston rod of the lifting cylinder (83) is connected to the side wall of the second baffle (82) through a connecting plate. The lifting cylinder (83) drives the second baffle (82) to rise and fall, and the second baffle (82) rises to the top of the loading bucket (7) or falls to prevent the loading bucket (7) from leaving the roller conveyor (8); The limit switch is also electrically connected to the lifting cylinder (83), and the lifting cylinder (83) operates synchronously with the driving source of the first hydraulic plug-in door (21). When the driving source of the first hydraulic plug-in door (21) drives the door body of the first hydraulic plug-in door (21) to open, the lifting cylinder (83) synchronously drives the second baffle (82) to rise; when the driving source of the first hydraulic plug-in door (21) drives the door body of the first hydraulic plug-in door (21) to close, the lifting cylinder (83) synchronously drives the second baffle (82) to descend.

4. The high-safety crushing device according to claim 1, characterized in that: The material discharge chute (4) is arranged at an angle, and the end of the material discharge chute (4) close to the crusher (3) is the highest end of the material discharge chute (4).

5. The high-safety crushing device according to claim 1, characterized in that: A discharge port (41) is provided at the bottom end of the discharge chute (4), and a second hydraulic plug-in door (42) is provided at the discharge port (41) of the discharge chute (4).

6. The high-safety crushing device according to claim 1, characterized in that: A third hydraulic gate (13) is arranged on the side wall of the feed hopper (1), and a clearance groove (14) is provided on the side wall of the feed hopper (1) for the door body of the third hydraulic gate (13) to pass through, and the clearance groove (14) is communicated with the interior of the feed hopper (1).

7. The high-safety crushing device according to claim 1, characterized in that: The conveying hopper (1) is connected to an air intake pipe (15), which is arranged at the top and middle of the conveying hopper (1), and one end of the air intake pipe (15) away from the conveying hopper (1) is externally connected to nitrogen.

8. The high-safety crushing device according to claim 7, characterized in that: The conveying hopper (1) is connected to an air supply pipe (16), which is arranged in the middle of the conveying hopper (1), and one end of the air supply pipe (16) away from the conveying hopper (1) is externally connected to a carbon dioxide fire extinguishing system (9).

9. The high-safety crushing device according to claim 8, characterized in that: The exhaust pipe (12) is provided with a first one-way valve (121), and the first one-way valve (121) allows the exhaust gas in the feed hopper (1) to enter the exhaust gas treatment equipment; The air inlet pipe (15) is provided with a second one-way valve (151), and the second one-way valve (151) allows nitrogen to enter the feed hopper (1); the air feed pipe (16) is provided with a third one-way valve (161), and the third one-way valve (161) allows carbon dioxide to enter the feed hopper (1).

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