Paraffin fluidization cooling granulation process

Abstract

The present invention provides one kind of paraffin fluidizing, cooling and pelletizing process. The process includes the following steps: melting paraffin at the temperature 15-20 deg.c higher than its smelting point and stirring, compression filtering and spraying out through nozzle to contact with cold air for cooling, fluidizing for further cooling to obtain paraffin grain, sieving, packing while returning the paraffin grains beyond the required size to smelting, cooling the tail gas and filtering to obtain fine powder material, returning the recovered fine powder material to smelting, purifying the filtered tail gas and reusing the purified tail gas in the temperature lower than the environment temperature. The process has high production efficiency, reliable product quality, reduced environmental pollution and saving in material and energy source.

Description

technical field [0001] The invention relates to a paraffin cooling granulation process. Background technique [0002] my country's crude oil has high wax content and good quality, while paraffin wax molding mainly adopts block wax molding, which has high energy consumption and low efficiency. It takes about two hours to cool down from liquid wax injection to block wax products, which takes up a lot of space and causes equipment failure. The rate is high, and the block wax also has many shortcomings in packaging, transportation, and use. It needs to be broken when used, and the labor intensity is high, which is not convenient for users with small amounts. The existing paraffin granulation processes include spray tower granulation and water-cooled steel belt granulation. The disadvantages of spray tower granulation are that the structure of the spray tower is complex, the whole set of equipment occupies a large area, the installation volume is large, and maintenance is troubles...

AI Technical Summary

Problems solved by technology

[0002] my country's crude oil has high wax content and good quality, while paraffin wax molding mainly adopts block wax molding, which has high energy consumption and low efficiency. It takes about two hours to cool down from liquid wax injection to block wax products, which takes up a lot of space and causes equipment failure. The rate is high, and the block wax also has many shortcomings in packaging, transportation, and use. It needs to be broken when used, and the labor intensity is high, which is not convenient for users with a small amount.

The existing paraffin granulation processes include spray tower granulation and water-cooled steel belt granulation. The disadvantages of spray tower granulation are that the structure of the spray tower is complex, the whole set of equipment occupies a large area, the installation volume is large, and maintenance is troublesome; the water-cooled steel belt granulation For the production of flaky grain wax, the single-side indirect conduction of steel belt is used to transfer heat, which has low efficiency, easy adhesion, and large equipment footprint

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