Technique for producing regenerative rubber by using kneading machinery chemical method and interrelated device thereof

Abstract

The invention relates to a technique for producing regenerated rubber by utilizing a milling mechanical and chemical method, wherein wasted sulfured rubber is firstly prepared into rubber powder; the rubber material is cast into a milling machine banburying room after being blended with chemical additives; a four-wing synchronous rotor of the milling machine is used for doing work on the rubber material, thereby the rubber material is heated and desulfurized; the rubber material is cooled and prepared into the finished product of the regenerated rubber by compressing and refining. The rotor comprises a rotor shaft and a left end sheet and a right end sheet on the shaft; a dextrorotatory screw wing body and a levorotary screw wing body are arranged on the rotor shaft between the left and the right end sheets; the two wing body are distributed uniformly and intersected along the circumference of the rotor shaft with an interval of 90 degrees; the cooling equipment is a spiral conveyor, wherein one end of a machine barrel is an inlet, and the other end is an outlet; a spiral mandrel connected with a power device is arranged in the machine barrel; a spiral lamina is welded on the mandrel; revolving joints are connected on two ends of the mandrel; the machine barrel is a jacketed structure; an inner cavity of a jacket and an inner bore of the mandrel are communicated with a watering and cooling device through the revolving joints and a rubber tube. The technique has the advantages of a safety and reliability, non pollution, energy saving, and low production cost.

Description

technical field [0001] The present invention relates to a process and related equipment for producing recycled rubber in the recycled rubber industry, in particular to a process and related equipment for producing recycled rubber by kneading mechanochemical method, mainly using a special kneader equipped with a four-edge synchronous rotor and a screw type Cool the conveyor and apply chemical additives to turn waste vulcanized rubber into recyclable recycled rubber and become the raw material of rubber products. Background technique [0002] Regenerated rubber refers to plastic rubber regenerated from vulcanized rubber after desulfurization. The "regeneration" of waste vulcanized rubber is customarily called "desulfurization", and the desulfurization process is the opposite process to the vulcanization process of compounded rubber. [0003] The recycling process of waste vulcanized rubber usually includes three stages: ① crushing waste rubber into powder, ② heating desulfuri...

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Problems solved by technology

[0007] However, the dynamic tank is a type II pressure vessel, and there are still many shortcomings in the desulfurization and regeneration of waste rubber.

Mainly: ① There are serious safety hazards, the working temperature is 250-300 °C, the pressure on the tank body is 2-3 MPa, and the safety management cost is high; ② There is relatively serious secondary pollution of waste liquid and waste gas, and the cost of environmental protection is high; ③Consumption of electricity, heat transfer oil, coal, water, steam, etc., consumes a lot of energy; ④Long preheating time, large amount of additives, high production cost

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