Renewable sources granular fuel making method and ring mould thereof

Abstract

The invention relates to a manufacture method of renewable energy resource pellet fuels and a circular mold thereof, which belongs to the fuel manufacture method and processing equipment. The method comprises the steps of directly feeding non-pulverized sunflower husk and rice husk, or corn straw cut into segments with a length smaller than or equal to 1 cm into a pellet fuel forming machine to obtain renewable energy resource pellet fuels. On the circular mold, the non-pulverized rice husk or the corn straw less than 1 mm is processed, wherein the thickness of the circular mold is 42, 70 and 104 mm sequentially corresponding to the hole diameter Phi of the circular mold which is 6, 7 and 8 mm; and the non-pulverized sunflower husk, when the thickness of the circular mold is 90, 126 and 168 mm sequentially corresponding to the hole diameter Phi of the circular mold which is 6, 7 and 8 mm. The method is simple, and the technical parameters of the circular mold are selected reasonably to fit each other. The pellet fuel has low production cost, good quality, high formation rate, and sufficient and long combustion.

Description

technical field [0001] The invention belongs to a manufacturing method and processing equipment of renewable energy fuel, and mainly relates to a manufacturing process and manufacturing equipment of granular fuel using sunflower husks, rice husks and corn stalks as raw materials. Background technique [0002] With the substantial reduction of non-renewable energy reserves such as coal and oil, the development and research of renewable energy has been mentioned on the important scientific and technological work agenda in countries all over the world. Sunflower husks, rice husks and corn stalks are renewable energy raw materials with high calorific value, and their calorific value can reach more than 3000 kcal. The fuel has been tried in boiler combustion, but due to the physical characteristics of the material, there are many technical problems such as insufficient combustion, large heat loss, and difficult operation and control during combustion. In order to solve the above...

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Problems solved by technology

However, due to the fact that sunflower husks contain wax and sunflower oil components, and rice husks contain rice bran oil components, in addition, there are defects in the structural design of the existing ring die pellet machines for processing pellet fuels, for example, the diameter of the forming hole on the 350-type ring die is ≤ 6 mm, ring die thickness ≤ 36 mm and other technical elements, in the process of making granular fuel with sunflower husks, rice husks or corn stalks as raw materials, the sunflower husks, rice husks and corn stalks must first be crushed into After the powder is in the form of powder, the powdery raw material is sent to the ring die pellet machine to be pressed into pellet fuel. The obvious and prominent problems are complicated process, high manufacturing cost, insufficient compression ratio of pellet machine, low molding rate and production efficiency of pellet fuel. shortcoming

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