A shredding device for waste disposal

Abstract

The application relates to a crushing treatment device for garbage treatment and relates to the technical field of solid waste treatment, which comprises a crushing cylinder, two primary crushing rollers and three secondary crushing rollers located below the primary crushing rollers are arranged in the crushing cylinder, the radius of the primary crushing rollers is larger than that of the secondary crushing rollers, and step-by-step crushing is realized; a feeding port is arranged at the top end of the crushing cylinder, a discharging port is arranged at the bottom end of the crushing cylinder, the discharging port is connected with a connecting pipe, a conical block with a pointed end upward is arranged in the connecting pipe, a driving motor and a rotating shaft with a cutting tool are integrated in the conical block, and the conical block is used for carrying out secondary shearing and crushing on residual block-shaped objects; the bottom end of the connecting pipe is connected with an obliquely arranged discharging pipe, a dragon conveying rod and a compressed air nozzle are arranged in the discharging pipe, and a vibration motor is arranged on the outer wall of the discharging pipe, so that blockage is effectively prevented, and the discharging efficiency is improved. Through the synergistic effect of the multistage crushing structure and the dynamic dredging and discharging system, the fineness of garbage crushing and the continuous operation capacity are remarkably improved, and the device is suitable for efficient treatment of high-wetness and high-viscosity garbage.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment, and in particular to a pulverizing and processing device for waste treatment. Background Technology

[0002] With rapid urbanization and population growth, the amount of municipal solid waste generated is increasing year by year, posing a serious challenge to environmental governance. Waste typically requires pretreatment before resource utilization or landfill disposal, with crushing being a key step aimed at reducing particle size and improving subsequent processing efficiency. Existing waste crushing equipment mostly employs single-stage or double-stage roller crushing structures, using two relatively rotating crushing rollers to squeeze and shear the material.

[0003] In practical applications, traditional pulverizing devices are prone to problems such as incomplete pulverization, uneven particle size, and blockage of discharge channels when dealing with municipal solid waste that is complex in composition, high in moisture content, and highly viscous. To solve the blockage problem, some devices have added vibration devices to the discharge port or adopted an inclined discharge pipe design, but the effect is limited. In addition, some devices have tried to add shearing blades at the rear end of the pulverizing chamber, but due to unreasonable layout, it is difficult to effectively handle the agglomerated material falling from the main pulverizing zone, resulting in low secondary pulverization efficiency.

[0004] While existing technologies employ multi-stage crushing structures, they generally lack optimized design for the flow path of the crushed material, particularly exhibiting significant shortcomings in the connection between the fine crushing stage and the discharge system. If the material, after initial crushing, fails to disperse and discharge smoothly in a timely manner, it easily accumulates near the discharge port, leading to blockages. Therefore, ensuring smooth discharge while achieving efficient, staged crushing has become a pressing technical challenge in this field. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a pulverizing and processing device for waste treatment.

[0006] This utility model provides a waste crushing and processing device, which adopts the following technical solution:

[0007] A waste pulverizing device includes a pulverizing cylinder. Two primary pulverizing rollers are horizontally positioned inside the pulverizing cylinder. Below the two primary pulverizing rollers are three secondary pulverizing rollers, also horizontally positioned. The radius of the primary pulverizing rollers is larger than the radius of the secondary pulverizing rollers. A feed inlet is located at the top of the pulverizing cylinder, and a discharge outlet is located at the bottom. Both the primary and secondary pulverizing rollers are driven by a motor.

[0008] Preferably, the discharge port of the crushing cylinder is connected to a connecting pipe, and a conical block is provided inside the connecting pipe. The tip of the conical block is set vertically upward, and the conical block is fixedly connected to the connecting pipe by a connecting rod.

[0009] Preferably, a drive motor is provided inside the conical block, and the output shaft of the drive motor passes through the conical block and is coaxially fixedly connected to a rotating shaft, on which a plurality of cutting tools are provided.

[0010] Preferably, the bottom end of the connecting pipe is connected to a discharge pipe, the discharge pipe is inclined, and a plurality of compressed air nozzles are provided at one end of the discharge pipe near the connecting pipe for periodically spraying airflow to clear the discharge pipe.

[0011] Preferably, the discharge pipe is equipped with a auger transport rod, and one end of the discharge pipe is equipped with a rotating motor, the output shaft of the rotating motor being coaxially and fixedly connected to the auger transport rod.

[0012] Preferably, a vibration motor is provided on the outer wall of the discharge pipe.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. By adopting a two-stage crushing roller with different radii, the material is gradually refined and crushed. Combined with the conical block guidance and the secondary shearing of the rotary cutting blade, the fineness and uniformity of the crushing are significantly improved.

[0015] 2. By adopting a composite discharge structure consisting of an inclined discharge pipe, compressed air nozzles, a vibrating motor, and a auger conveyor rod, multiple methods are used in concert to prevent blockage, ensuring continuous and stable discharge of high-moisture and high-viscosity materials and improving the reliability of equipment operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a waste crushing and processing device.

[0017] Figure 2 This is a cross-sectional structural diagram of a waste crushing and processing device.

[0018] Explanation of reference numerals in the attached drawings: 1. Crushing cylinder; 11. Feed inlet; 12. Discharge outlet; 13. Primary crushing roller; 14. Secondary crushing roller; 15. Connecting pipe; 16. Conical block; 17. Connecting rod; 18. Rotating shaft; 19. Cutting tool; 151. Discharge pipe; 152. Air nozzle; 153. Conveyor rod; 154. Rotary motor; 155. Vibrating motor. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to all the accompanying drawings.

[0020] This utility model discloses a waste crushing and processing device.

[0021] Reference Figure 1 and Figure 2 A waste crushing and processing device includes a vertically arranged crushing cylinder 1. The crushing cylinder 1 has a feed inlet 11 at the center of its top and a discharge outlet 12 at the center of its bottom surface. Inside the crushing cylinder 1, two primary crushing rollers 13 are horizontally parallel in the upper region, with an appropriate gap between them for preliminary compression and tearing of the incoming waste. Each primary crushing roller 13 is driven by an independent drive motor, achieving opposite rotation. The surface of the primary crushing rollers 13 has staggered serrated protrusions to enhance the gripping and crushing ability of tough materials. Directly below the two primary crushing rollers 13, three horizontally arranged secondary crushing rollers 14, with a smaller radius than the primary crushing rollers 13, are arranged for finer grinding of the pre-crushed material. The surface of the secondary crushing rollers 14 has helical blades to guide the material downwards during rotation. All crushing rollers are independently driven by motors with adjustable speeds.

[0022] Reference Figure 1 and Figure 2 The discharge port 12 of the crushing cylinder 1 is connected downward to a vertical connecting pipe 15. A conical block 16 is fixedly installed inside the connecting pipe 15, with its tip pointing upwards and its bottom facing downwards. It is fixedly connected to the inner wall of the connecting pipe 15 by multiple radially arranged connecting rods 17. This conical block 16 is used to guide the material falling from above to the surrounding area, preventing it from falling directly vertically and accumulating. A small drive motor is embedded inside the conical block 16. The output shaft of the motor extends downwards and is coaxially connected to a vertical rotating shaft 18. Multiple sets of cutting blades 19 are evenly installed circumferentially on the rotating shaft 18, forming a rotary shearing mechanism that can further shear and crush the material flowing around the conical block 16.

[0023] Reference Figure 1 and Figure 2 The bottom end of the connecting pipe 15 is connected to an inclined discharge pipe 151 with an inclination angle of 30 degrees to facilitate the material's downward movement under its own weight. A compressed air nozzle 152 is provided on the side wall of the discharge pipe 151 near the connecting pipe 15. The nozzle is connected to an air source through a pipeline and can periodically spray high-pressure airflow to remove sticky materials adhering to the pipe wall.

[0024] Reference Figure 1 and Figure 2The discharge pipe 151 is equipped with a auger conveyor rod 153, one end of which extends out of the discharge pipe 151 and is connected to a rotating motor 154. The motor drives the auger conveyor rod 153 to rotate, thereby achieving forced material conveying. The pitch of the auger conveyor rod 153 gradually decreases from the inlet end to the outlet end, which helps to compress the material and improve conveying efficiency. In addition, a vibrating motor 155 is fixedly installed on the outer wall of the discharge pipe 151, which generates high-frequency vibration during operation to prevent material from caking inside the pipe.

[0025] The implementation principle of the waste crushing device according to this utility model embodiment is as follows: After the waste is fed into the inlet 11, it is first coarsely crushed by two large-radius primary crushing rollers 13. Large pieces of material are torn and crushed by serrated protrusions. The crushed material falls into the area of ​​three small-radius secondary crushing rollers 14 below for finer grinding. The spiral blades help to push the material downward. The crushed material enters the connecting pipe 15 through the outlet 12 and is guided to flow around by the central conical block 16. At the same time, the rotating cutting blades 19 inside the conical block 16 perform secondary shearing on the material, improving the fineness of the crushing. Subsequently, the material enters the inclined discharge pipe 151 and moves towards the outlet under the push of the auger conveyor rod 153. When the discharge resistance is detected to increase, the compressed air nozzle 152 periodically sprays airflow, which, together with the vibration of the vibration motor 155, effectively prevents pipe blockage and ensures smooth discharge. The entire device achieves efficient and coordinated operation from coarse crushing to fine crushing and then to stable discharge.

[0026] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A waste pulverizing and processing device, comprising a pulverizing cylinder (1), characterized in that, The crushing cylinder (1) is provided with two primary crushing rollers (13), which are horizontally arranged inside the crushing cylinder (1). Below the two primary crushing rollers (13) are three secondary crushing rollers (14), which are horizontally arranged. The radius of the primary crushing rollers (13) is larger than that of the secondary crushing rollers (14). The top of the crushing cylinder (1) is provided with a feed inlet (11), and the bottom surface of the crushing cylinder (1) is provided with a discharge outlet (12). The primary crushing rollers (13) and the secondary crushing rollers (14) are both driven by a motor.

2. The waste pulverizing and processing device according to claim 1, characterized in that, The discharge port (12) of the crushing cylinder (1) is connected to a connecting pipe (15). A conical block (16) is provided inside the connecting pipe (15). The tip of the conical block (16) is set vertically upward. The conical block (16) is fixedly connected to the connecting pipe (15) by a connecting rod (17).

3. The waste pulverizing and processing device according to claim 2, characterized in that, The cone block (16) is equipped with a drive motor. The output shaft of the drive motor passes through the cone block (16) and is coaxially fixedly connected to a rotating shaft (18). The rotating shaft (18) is equipped with several cutting tools (19).

4. A waste pulverizing and processing device according to claim 2, characterized in that, The bottom end of the connecting pipe (15) is connected to the discharge pipe (151). The discharge pipe (151) is inclined and has several compressed air nozzles (152) at one end near the connecting pipe (15) for periodically spraying airflow to clear the discharge pipe (151).

5. A waste pulverizing and processing device according to claim 4, characterized in that, The discharge pipe (151) is equipped with a auger transport rod (153), and a rotating motor (154) is provided at one end of the discharge pipe (151). The output shaft of the rotating motor (154) is coaxially and fixedly connected to the auger transport rod (153).

6. A waste pulverizing and processing device according to claim 4, characterized in that, A vibration motor (155) is provided on the outer wall of the discharge pipe (151).

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