Device and method for preparing rice hull forming and briquetting fuel

Abstract

The invention discloses a device for preparing rice hull forming and briquetting fuel. An extrusion bin is fixedly mounted on a base. A heater is mounted on the extrusion bin. An annular press mold is arranged in the middle of the extrusion bin and provided with a circle of forming holes in row. The forming holes are in a corrugate shape. Water channels are arranged on the upper portion and the lower portion of the annular press mold correspondingly. A water inlet and a water outlet which communicate with the water channels are formed in the annular press mold. A temperature sensor is mounted in the annular press mold. Paired fixed plates comprise the upper fixed plate and the lower fixed plate. The lower fixed plate is movably mounted in the extrusion bin and provided with paired supporting rods. A method for preparing the rice hull forming and briquetting fuel comprises the following steps of a, raw material treatment, b, feeding, c, extruding forming, d, cooling and e, packaging. The device and method have the beneficial effects that the rice hull forming effect and the production efficiency are improved, rice hull combustion is facilitated, and great environment friendliness is achieved.

Description

Technical field [0001] The present invention relates to the technical field of fuel production devices and methods, and more specifically to the technical field of biomass solid briquettes production devices and methods. Background technique [0002] Rice husk briquette fuel is one of the products of biomass solid briquette fuel. It is a new type of fuel that uses special equipment to extrude the rice husk at high temperature and high pressure. The formed product can be directly used in biomass boilers or reformed coal-fired boiler equipment, and can replace traditional coal and natural gas energy. Its use cost is lower than natural gas, and there is no pollution caused by coal burning. Renewable clean energy. The production of rice husk briquette fuel usually involves crushing, drying, grinding, briquetting, cooling and packaging. At present, the most common briquetting device used for briquetting rice husks on the market is ring-molded briquetting. In the production process, ...

AI Technical Summary

Problems solved by technology

The production of rice husk briquette fuel usually goes through processes such as crushing, drying, grinding, briquetting, cooling and packaging. At present, the more common briquetting device used for briquetting rice husk on the market is ring die briquetting However, during the production process of the ring die briquetting machine, the rice husk is prone to generate a large amount of heat under the extrusion friction between the ring die and the pressure roller, which makes the temperature of the ring die continue to rise, resulting in unstable rice husk molding and easy blockage of the ring die hole

The current common method of making rice husk briquettes also has the following disadvantages: First, the production process is relatively cumbersome, the production efficiency is low, the calorific value of the produced rice husk briquettes is uneven, and the combustion efficiency is low; The briquette is not very compact, the calorific value of combustion is low, and it is not easy to burn; the third is that binders are generally required to be added during the production process, which is not very environmentally friendly

In addition, when the currently common biomass solid shaped fuel is burned in the boiler, the flue gas produced contains molten or semi-molten alkali metal silicate, which condenses and accumulates when it touches the inner wall of the boiler, eventually causing severe The phenomenon of ash accumulation and slagging will not only affect the thermal performance of the combustion equipment, but also endanger the safety of the combustion equipment

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