Straw Briquette Machine Buying Guide: Flat Die Molding Machine Principles and Key Operating Points
After every autumn harvest, farmers always have a headache over how to deal with the straw in the fields. Burning it pollutes the air, and piling it by the roadside takes up space. In fact, this straw is excellent biomass energy raw material. Using a straw briquette machine to press it into dense fuel briquettes reduces the volume and concentrates the calorific value. Whether you burn it in your own boiler for heating or sell it to a biomass power plant or fuel processing point, it is a way to turn waste into treasure. The Jiuxin JXP30-C and similar flat die briquette machines are among the common models for rural straw fuel processing.
How a flat die briquette machine works
The principle of the flat die briquette machine is not complicated: the motor drives the die plate (press die) to rotate, and the press rollers roll on top, squeezing the crushed straw that falls into the die plate layer by layer into the die holes. After being squeezed under high temperature and high pressure, the material density greatly increases. It is extruded from the bottom of the die holes and cut into short rod-shaped fuel briquettes, which can be bagged and stored after cooling. The whole process generally does not require adding adhesives; it relies on the binding effect produced by the lignin in the straw under heat and pressure, so the finished product is truly "green fuel."
Compared with ring die models, the flat die structure is simple, relatively low in cost, and convenient for feeding, making it more suitable for small and medium-scale processing households. Agricultural and forestry waste such as straw, rice husks, peanut shells, corn cobs, branches and wood shavings can all be used as raw materials after crushing.
Several key points in use
First, raw material processing must be done properly. Straw must be crushed before briquetting, and the length must not be too long. At the same time, the moisture content must be controlled well. If it is too wet, it easily clogs the die and the pressed briquettes are loose and cracked; if it is too dry, it is not easy to bind and form. The specific requirements should be based on the equipment manual.
Second, the die and press rollers must be maintained frequently. Briquetting is continuous heavy-load work. After the die holes wear, discharge slows down and molding quality declines, so they must be checked regularly and replaced or repaired in time. When the machine is stopped, clean the die plate thoroughly to prevent residual material from absorbing moisture and caking.
Third, pay attention to electrical and operational safety. The equipment has relatively high power, so it must be matched with qualified power lines. Never put your hands into the feed inlet. Before starting the machine, run it idle for a check first, then add material.
How to handle purchasing and subsidies
When purchasing, first think clearly about your own raw material types and processing volume, then compare the matched power, molding diameter and production efficiency of different models. Do not look only at price. If conditions permit, it is best to bring your own straw to the manufacturer for a trial run to see the molding effect and finished product density. In addition, many regions have agricultural machinery purchase subsidies for comprehensive straw utilization and biomass molded fuel processing equipment. The subsidy scope and standards vary by region. Before buying, you can consult the local agricultural machinery authority clearly, and apply according to regulations with a formal invoice, which can save a lot of investment. Turning straw from a "burden" into "fuel" - a suitable briquette machine is the starting point.