Making process of horizontal polyethylene storage tank with integral support

Abstract

The technological process of making horizontal polyethylene storage tank integral support includes the following steps: 1. preparing material through mixing linear low-density polyethylene and linear high-density polyethylene in the weight ratio of 100 to 10-20; 2. making tank steel lining; 3. preparing mold; 4. assembling mold and clamping mold; 5. rolling plastic to form the tank through rolling in roller rotation speed of 30-40 rpm, baking at tank wall temperature of 170-250 deg.c for 40-350 min and curing for the plastic to be attached to the surface of the steel lining; and 6. cooling and demolding. The storage tank thus produced has the advantages of once integral formation, no seam, high impact strength, ageing resistance, light weight, acid and alkali resistance, long service life, etc.

Description

technical field [0001] The invention relates to a production method of equipment used for liquid storage and transportation, in particular to a manufacturing process of a horizontal polyethylene integrated support storage tank. Background technique [0002] In many industries such as chemical industry, medicine, biology, pesticide, etc., a large amount of organic and inorganic acid-base solutions and organic solvents are used. The storage and transportation of these liquids are mainly completed by storage tanks. Therefore, the service life of storage tanks, corrosion resistance performance is critical. Most of the existing storage tanks use polyvinyl chloride (PVC) as raw material. The chemical properties of polyvinyl chloride are not as good as polyethylene, and its impact strength, oxidation resistance and chemical resistance are relatively poor. Therefore, welded storage tanks have poor impact resistance, are prone to photooxidative aging and become shattered, and have p...

AI Technical Summary

Problems solved by technology

The quality of the finished boards varies, and some contain additives, which affect the chemical resistance and service life of the storage tank

Manholes and flanges are welded to the prefabricated tank body by welding process, and there are inevitably welds. Therefore, the overall structure of the storage tank is discontinuous, the overall strength performance is poor, and the welds are easy to cause leakage; and the welds have Raised, affecting the appearance of the storage tank

In addition, the storage tank must be installed on a cement or iron support to work. The support is manufactured separately, and the cement support is not easy to move, and the iron support is easy to corrode.

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