Coconut Shell Briquette Machine

The role, working principle and technical advantages of hollow coal bar machine are discussed in detail as follows:
Hollow Coal Bar Machine is to use the principle of spiral extrusion to compress the modulated cheap coal powder into cylindrical or plum blossom shaped coal bar with certain strength, which is used to replace the expensive lump coal, it can make full use of the cheap coal powder and reduce the fuel cost.
Hollow Coal Stick Machine is that this machine adopts variable pitch impeller to push the coal powder at the back of the barrel forward strongly, after the volume of coal powder is compressed in the barrel, it will be extruded through the round holes in the front head to form the coal stick, and there are various shapes of round holes, and there are various shapes of the coal stick. The coal rods are naturally broken by gravity in the process of advancing.
Hollow Coal Stick Machine Technical Advantages
1,Adopting hardened gear reducer, small volume, high load capacity;.
2,Internal impeller adopts thickened blade design, impeller and cylinder liner are made of wear-resistant fine casting material, life expectancy is 4-5 times higher than ordinary materials.
3,The head coal bar outlet is made of replaceable wear-resistant alloy steel, which is convenient to replace; 4,The head and cylinder are made of wear-resistant alloy steel, which is convenient to replace.
4,Head and cylinder body adopt the form of stranding, which can be opened during maintenance, and it is very convenient to replace the internal impeller and cylinder liner.

Coal bar machine is a machine to make different shapes of powdered raw coal into bar-shaped blocks.
1, the working principle is: the motor through the triangle belt power transmission to the transmission, transmission output shaft through the floating coupling power transmission to the propeller shaft, the propeller on the propeller shaft to promote the coal material through the molding die head out, it will produce the ideal high-pressure coal rods.
2,Structural features:
(1) The feed screw has a large lead, which makes the feed fast, and the propeller screw has a small lead, which saves power.
(2) Shaft seat and cylinder body adopt rigid connection, high concentricity, anti-reverse thrust, stable machine.
(3) The sealing part adopts fault structure, the dirt leaks out from the fault.
(4) Triangle belt drive, smooth running, low noise, and overload protection.
(5) The head is connected with the cylinder with snap ring structure and bolt structure, according to the user's needs.

Mechanism charcoal production process is mainly divided into: raw material preparation, rod making, carbonization of three major parts:
(1) Raw material preparation is a system including screening, drying and output;
(2) Bar making process is composed of extrusion bar making, bar cutting and bar collecting;
(3) Carbonization process is composed of transporting, stacking, carbonization and kiln output;
During the production process, if the raw material is coarse and not fine, it can be equipped with pulverizer. If the raw material has too much moisture, it can be equipped with dryer. Mechanism charcoal production is to crush the raw materials into 2-6mm granules, drying or drying so that the moisture content is less than 12%, into the rod-making machine after high temperature extrusion to make it into fuel rods (without adding any binder), and then put into the carbonization kiln for carbonization, made of mechanism charcoal.

Drying Stage
The temperature of this stage is 20-150 degrees Celsius, the pyrolysis rate is very slow, mainly the moisture contained in the wood depends on the heat supplied from the outside to evaporate, and there is almost no change in the chemical composition of the wood material.
Pre-carbonization stage
This stage of the temperature of 50-275 degrees Celsius, the thermal decomposition of wood materials is more obvious, the chemical composition of wood materials began to change, which is not stable components, such as hemicellulose decomposition of carbon dioxide, carbon monoxide and a small amount of acetic acid and other substances.
The above two stages should be outside the supply of heat to ensure that the pyrolysis temperature rises, so it is also known as the heat-absorbing decomposition stage.
. Carbonization stage
The temperature of this stage is 75-400 degrees Celsius, in this stage, the wood material is sharply thermal decomposition, generating a large number of decomposition products. The liquid product contains a large amount of acetic acid, methanol and wood tar, and the carbon dioxide content of the gas product gradually decreases, while methane, ethylene and other flammable gases gradually increase. This stage releases a large amount of reaction heat, so it is also called the exothermic reaction stage.
Calcination stage
The temperature rises 450-500 degrees Celsius, and this stage relies on the external supply of heat for the calcination of charcoal to discharge the volatile substances remaining in the charcoal and increase the fixed carbon content of the charcoal. At this point, there are few liquid products generated.

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