Method for reducing working temperatures of main shaft and compression roller bearing of biomass granulator
A technology of working temperature and granulator, which is applied in the fields of biofuel, waste fuel, petroleum industry, etc., can solve the problems of uncontrollable working temperature, reduced production efficiency, long time, etc., to extend continuous working time, reduce production cost, The effect of prolonging the service life
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Embodiment 1
[0019] Example 1 Manufacture rod-shaped molding fuel with cotton stalk as raw material
[0020] Reference attached figure 1 , start the oil pump 12 to make the cooling oil system work; use a chipper to chop the cotton stalks (air-dried or wet cotton stalks, the wet weight of cotton stalks is 60kg / m3), dry to an average moisture content of ≤16%, and force it into the The feeding device feeds the cotton stalk scraps into the raw material inlet of the granulator, and is pressed into the ring die at the contact point between the pressure roller and the ring die along the radial In the distributed tapered molding holes, the molding hole in the ring die is 16mm (can be changed according to requirements). As the cotton stalk scraps are continuously squeezed into the molding holes, the density of the scraps in the holes is getting higher and higher, and finally Extrude the ring die radially in the shape of rods, and be broken into short rods by the slow-moving scraper, and then t...
Embodiment 2
[0023] Example 2 Manufacture of wood briquettes from wood processing residues
[0024] Firstly, the processing residues are screened, the coarse material enters the chipper to be chopped, and the fine material can directly enter the conveying pipeline; the wood chips are sent to the drum dryer with hot air as the medium to dry until the moisture content is ≤18%, and then transported to the drying machine. material; refer to attached figure 1 , start the oil pump 12 to make the main shaft and pressure roller oil cooling system work, and all the other procedures are the same as in embodiment 1.
[0025] The indicators of wood stick briquettes are as follows:
[0026] Density ≥ 1.0Kg / cm3, moisture content ≤ 15%, fuel diameter 8-16mm, calorific value ≥ 4600Kcarl / Kg.
Embodiment 3
[0027] Example 3 Manufacture of straw charcoal briquette fuel with corn stalk as raw material
[0028] First, the corn stalks are subjected to medium and low temperature heat treatment (also known as carbonization). The steps are as follows: the corn stalks are packed into sills to reduce the volume, and sent to the medium and low temperature heat treatment kiln. The treatment kiln uses the combustible gas generated during the heat treatment of corn stalks as the main heat source. The stalks undergo drying and medium-low temperature heat treatment (temperature 120-150°C) in the kiln to pyrolyze part of the hemicellulose and lignin. The corn stalks after heat treatment are more brittle, which can reduce the power consumption during crushing. The treated corn stalks have a moisture content of ≤8%, and are crushed and then sent to a dry silo, and the rest of the process is the same as in Example 1.
[0029] The indicators of corn stalk shaped fuel are as follows:
[0030] Den...
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