A high-efficiency and energy-saving material pulverizer

Abstract

The invention discloses a high-efficiency and energy-saving material grinder which comprises a rack, a feeding mechanism, a cutter component, a cutter adjusting device, a discharging device and an air cooling device. The feeding mechanism comprises a storage bin, a uniform feeder, a pusher plate and a stepping drive component for driving the uniform feeder and the pusher plate to move materials intermittently. The cutter component comprises a fixed cutter bed and a movable cutter drum, which have arc-shaped parallel working surfaces and are coaxial to each other. The cutter adjusting device comprises a gap measurement and control component, a horizontal adjustment mechanism and a vertical adjustment mechanism; the horizontal adjustment mechanism and the vertical adjustment mechanism are connected with the fixed cutter bed and push the fixed cutter bed to move; and the gap measurement and control component dynamically measures the gap between the fixed cutter bed and the movable cutter drum and controls the motions of the horizontal adjustment mechanism and the vertical adjustment mechanism. The discharging device comprises a discharge passage, a discharge plate and a vibrator. The air cooling device comprises an arc-shaped guide jet device and an exhaust duct, the arc-shaped guide jet device is provided with an air inlet and a plurality of jet holes facing the working surface of the movable cutter drum. The material grinder has the advantages of high efficiency, low energy consumption, long cutter life and high product quality.

Description

technical field [0001] The invention relates to a material crushing device, in particular to a high-efficiency and energy-saving material crushing machine, which belongs to the technical field of material processing. Background technique [0002] In order to reuse waste materials, people usually crush and grind waste materials into particles or powders of various sizes, and then put them into production as recycled raw materials, such as plastics and rubber. The crushing or grinding of materials generally adopts grinders specialized in processing recycled materials, such as: 280 plate grinder is a kind of material grinding machine with double discs, which can process waste materials into 40-120 mesh (0.38-0.12mm) at room temperature ) Fine rubber powder. As another example, the conical grinding head material pulverizer is a kind of material pulverization equipment in which the pulverization tool is a cone. Existing material pulverizers are usually equipped with two knives ...

AI Technical Summary

Problems solved by technology

[0005] 1. The feeding is not smooth and unbalanced, and it is easy to block the material and put it on hold, which will lead to the suspension of the material crushing production process, and even cause secondary pollution to the environment

[0006] When a large amount of material is added, it falls only by its own gravity. Now the commonly used feeding hopper 03 can only be used for relatively small material particles. When encountering materials with larger particles, such as volume greater than 55mm 3 If the rubber blocks are placed at the feed inlet and no longer fall, it is commonly known as "bridge", resulting in a static state of logistics, resulting in the suspension of the material crushing production process, which not only affects the normal operation of the production line, but also Once there is a shutdown, it will cause secondary pollution to the environment

In addition, the feeding is often unbalanced, and the effect of quantitative feeding cannot be achieved, so the driving power of the feeding screw 05 has to be increased, which increases energy consumption

[0007] 2. The discharge is not smooth, and it is easy to cause material blockage

[0008] When the material is ground between the crushing knives, it turns into a fine material powder with a small particle size, so its flow becomes difficult due to the increased friction between them, so material accumulation will form at the discharge port , directly affects the production of crushed flow water

reduced productivity

[0009] 3. The crushing tool is not well discharged and the cooling effect is not good, which causes the material grinding efficiency to be low and the service life of the tool to be reduced

[0010] During the material crushing process, the mechanical shearing and extrusion of the fixed knife 01 and the moving knife 02 will cause a large amount of heat to be released instantaneously. Therefore, the cooling of the crushing tool is very critical, and the existing material grinder Water is used as the cooling medium, and the cooling water does not directly contact the pulverized material to be cooled, but indirectly cools through the cavity wall of the cutter, so the cooling effect is not good; in addition, the moving direction of the material is from the inside to the outside during the pulverization process Along the radial direction of the cutter head, and the relative movement between the two cutters is along the tangential direction of the cutter head, that is, the moving direction of the material and the relative moving direction between the two cutting tools are perpendicular to each other, therefore, the moving direction of the material and the relative moving direction of the cutting tools The inconsistency makes the discharge unsmooth, and the material often stays in the gap between the two knives and is repeatedly ground in it, which intensifies the overheating of the knives, reduces the service life of the knives, and greatly reduces the efficiency of material grinding

[0011] 4. The gap of the crushing tool cannot be adjusted dynamically, resulting in reduced crushing efficiency and unstable product quality

However, once the tool is fixed, the gap can no longer be adjusted at will, especially when the tool wears out during production and the gap needs to be adjusted, the machine must be stopped to readjust the position of the fixed knife 01, and the gap distance cannot be dynamically adjusted at any time during operation

In this way, if the cutter gap cannot be adjusted in time, the particle size of the crushed material will become coarser, resulting in unstable product quality; if the cutter gap is constantly adjusted in time, the machine must be shut down frequently, which will affect production efficiency.

[0014] In short, the existing material crushing equipment generally has the disadvantages of low efficiency, high energy consumption, short tool life and unstable product quality.

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