Temperature control system of stirring kettle for material mixing

Abstract

The invention discloses a temperature control system of a stirring kettle for material mixing. The temperature control system comprises the stirring kettle for material mixing and at least one raw material storage tank, wherein the raw material storage tank is connected with the stirring kettle for material mixing by a first conveying pipeline, a cooling jacket for cooling mixture inside the stirring kettle for material mixing is arranged outside the stirring kettle for material mixing, and a heat exchange device is arranged outside each of the raw material storage tank and the first conveying pipeline. According to the temperature control system of the stirring kettle for material mixing, the temperature control system can be applied to the stirring kettle for material mixing, temperature variation can be well controlled in a stirring process, the influences of poor thermal conductivity of the material and environment temperature variation on the temperature control effect of the stirring kettle can be effectively overcome, and the temperature control to PVC (polyvinyl chloride) paste can be realized indirectly by a raw material temperature control method.

Description

technical field [0001] The invention belongs to the field of temperature control machinery and relates to a temperature control system for a mixing and stirring tank. Background technique [0002] PVC paste is a kind of mixed material, which is made by dispersing plasticizer and PVC powder at high speed through a dispersing disc in a stirring device. In the process of preparing PVC paste, the temperature of PVC paste in the stirred tank increases due to stirring friction and multiphase system mixing. Because of the characteristics of PVC paste itself, if the temperature rises, the quality of PVC paste will be affected. Therefore, the temperature should be controlled within a certain range, and the jacketed stirring tank cooling system is usually used to take away the heat generated during the stirring process. [0003] The commonly used jacketed stirring tank cooling system cannot meet the temperature control requirements of the mixing and stirring device in the actual prod...

AI Technical Summary

Problems solved by technology

[0003] The commonly used jacketed stirring tank cooling system cannot meet the temperature control requirements of the mixing and stirring device in the actual production process. The main reasons are as follows:

[0004] Jacket cooling mainly relies on cooling water to take away heat, and the capacity and flow of cooling water inside it are limited, so the cooling temperature range of cooling water is limited; the thermal conductivity of PVC paste material itself is poor, resulting in the cooling effect of the jacket cooling system Poor; jacket cooling system has no resilience to seasonal ambient temperature changes

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