Discharge mechanism used for large-scale pretreatment device for municipal solid wastes, and waste pretreatment device

Abstract

The invention relates to a discharge mechanism used for a large-scale pretreatment device for municipal solid wastes, and a waste pretreatment device. The discharge mechanism comprises more than two swing components positioned at the inner lower part of a fermentation raw material cavity, wherein the waste materials in the fermentation raw material cavity are stacked above the swing components. Each swing component comprises a swing body, a swing driving component and a plurality of digging claws which are arranged on the swing body and are used for breaking the self stacking support of the waste materials, wherein the swing driving component drives the swing body to drive the digging claws to swing. The waste pretreatment device comprises an upright barrel body, and an air pumping component, an automatic temperature control component and the discharge mechanism which are matched with the upright barrel body, wherein the discharge mechanism is positioned at the discharge end of the upright barrel body. The discharge mechanism has the advantages of simple and compact structure, low cost, simplicity in operation, low operating cost, good reliability and the like.

Description

technical field [0001] The invention mainly relates to the field of environmental protection equipment, in particular to a discharge mechanism mainly suitable for large-scale pretreatment of domestic garbage and a garbage pretreatment device with the discharge mechanism. Background technique [0002] With the rapid advancement of urbanization and the rapid increase of urban domestic waste, the relatively insufficient waste disposal capacity has become a difficulty faced by cities. Based on the principle of adapting measures to local conditions, people are gradually and are choosing safe, reliable, advanced environmental protection, land-saving and energy-saving, economical and applicable waste treatment technologies, in order to basically form a harmless treatment capacity that matches the amount of domestic waste generated. For example, the published Chinese patent application: A device and method for large-scale pretreatment of domestic waste (publication number 102626710A...

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Problems solved by technology

Then, the screw discharge device will operate under the combined action of huge normal stress, huge sliding friction and rolling friction for a long time, which will cause the bolt discharge device to easily deform and greatly reduce its service life. become a norm

[0007] 4. To ensure the effective operation of the screw discharge device, the screw discharge device, the support supporting the screw discharge device and the driving device must have sufficient strength and rigidity. The specifications of these devices will be huge, which requires It costs a huge amount of materials and driving energy, and the production cost and operating cost are very high, making it difficult to promote and apply on a large scale

[0010] 2. In order to ensure the effective operation of the drum discharge device for a long time, the drum discharge device, the support supporting the drum discharge device and the driving device must have sufficient strength and rigidity, then the specifications of these devices will be huge, and need It costs a huge amount of materials and driving energy, and the production cost and operation cost are very high, so it is difficult to achieve large-scale promotion and application in the end.

[0011] 3. The disadvantage of the drum compared with the spiral is that the drum is closed, and the drum itself has to support all the weight of the garbage. It is not convenient to connect the stiffening plate in the drum space, which makes the wall of the drum very thick, and the material waste is greater than that of the spiral, and it is not convenient for large-scale engineering

[0012] 4. From the point of view of the design principle, the drum-type discharge device does not design the discharge method according to the principle of self-supporting garbage, but adopts the method of forcibly "twisting" the garbage after rotation

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