Mixing milling squeezing granulation units melt control valve

Abstract

The invention relates to a mixing-and-pressing granulator unit. In a melt control valve of the mixing-and-pressing granulator unit, the valve body is equipped with a melt regulating valve passage and a start-up valve traveler passage, the two passages are intercrossed, the melt regulating valve positions a rotary valve core or a valve plate in the regulating valve passage, the start-up valve traveler is equipped with a molten material straight passage and a waste material bend passage, and the two passages can be respectively connected with the regulating valve passage. The mixing-and-pressing granulator unit scientifically designs the regulating valve passage of molten material and the bend passage of waste material, processes a melt regulating valve passage and a start-up valve traveler passage on shared valve body, and then the regulating valve is integrated with the start-up valve. Compared with conventional regulating valves and start-up valves having equivalent functions, the regulating valve and start-up valve of the mixing-and-pressing granulator unit have the advantages of compact structure, small accommodation area, low processing and manufacturing cost, convenient installment and maintenance, simple procedure control, economy of energy consumption and the like.

Description

1. Technical field [0001] The invention relates to a mixing extrusion granulation unit, in particular to a control valve of a granulation extrusion system. 2. Background technology [0002] The mixing extrusion granulation unit is one of the most important equipment for ethylene engineering in the petrochemical industry. Both the melt mixing degree regulating valve and the start-up valve belong to the extrusion granulation system of the extrusion granulation unit. The main function of the melt mixing degree regulating valve is to adjust the mixing degree of the melt in the cylinder by changing the rotation angle of the disc-shaped valve body, that is, to adjust the back pressure of the material in the extrusion system, thereby changing the plasticity of the material. The degree of plasticization and the actual consumption of the main drive motor; and the function of the driving valve is to discharge a large amount of unplasticized raw materials and materials mixed with impu...

AI Technical Summary

Problems solved by technology

In the previous unit, the mixing degree control valve and the start-up valve used two separate valve bodies, which resulted in the lengthening of the channel of the molten material, increased the cost of equipment manufacturing, unfavorable process control, and increased energy consumption.

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