1, the structure and composition of the working process loop mode particles machine generally consists of feeding chamber, screw feeders, stirring mechanism, forming assembly (roller, ring die pellet machine, cutter, etc.), the discharge port, gearboxes and composed of motors and other parts of the spiral ring die roll forming machine type particle feeders, stirring mechanism and forming assembly components: the role of the feed screw from the feed by changing the speed and control of the gate opening to control the feed rate spiral . Stirring mechanism comprises adjustable angle stirring rods, helical arrangement according to the stirring rod, stirring and the auger acts powder materials. In the side walls of the stirring chamber containing steam or additive supply nozzle, steam or mist and discharged powder mix, and then molded into the ring mold chamber. Purpose is to increase the feed plus steam temperature and humidity, it is a good molding, increasing productivity biomass particles machine, and can reduce the wear ring mold. 2. The main working parts of the main working parts ring mold roll type particle molding machine is a ring mold and pressure rollers. 1) ring mold ring die roll forming machine in the form of a ring-type particle mold structure using the most is monolithic. Drilling from the ring mold ring, diameter shape of the hole is generally circular, hole is smaller than or equal to 25 mm, usually wooden raw material, the molding cavity is a straight hole, the fuel used to process particle formation, see chapter 6.3. 2) roll nip roller straw pellet machine press roll assembly loop mode particles forming machine roll straight, often with integral ring mold particles used in conjunction with a larger width dimension of the pressure roller. The outer edge of the structure and shape of the pressure roller and ring mold monolithic rods (block) the same machine-like structure on the pressure roller, not repeat them here. Ring die bore structure: ring die bore the main straight holes, tapered bore, tapered bore and with pressure inside the hole and so on. Depending on the biomass feedstock, using the hole in the form of different types of mold. Compression ratio is a reflection of the strength of particles as an indicator of the extrusion, i.e. the ratio of the effective thickness of the ring die and the die hole diameter (l / d), the compression ratio of the effective length of the ring die smaller die hole short biomass particles machine use, the material in the Pressure die 孔中成 small, easy extrusion ring die, although the high yield but the system out of the loose particulate material, the appearance is not smooth; the effective length of the ring die compression ratio, the length of the die hole, the material in the die orifice suffered The higher the pressure, the higher particle density corresponding to come out of the particles is smooth and good quality, but the particle machine production will decline, the system will be a corresponding increase in material costs. Guide cone material role is to facilitate the material into the mold hole course guide cone material easy to wear, the material must guide cone timely repair. Outer cone ring mold is mainly used straw, wood chips and other biomass feedstocks granulation. When the die hole diameter d by the wear becomes large, the length l of the die orifice will also be longer, so that the compression ratio is relatively stable, to ensure the hardness of the particles. Ring die bore by an equilateral triangle arrangement. Ring die opening ratio d2 / 4 (d + 6) 2. The higher the value, the more the material, but it will reduce the intensity of the ring mold, easy to crack; the lower the value, the distance between the die hole 6 is larger, the greater the intensity, the less biomass ring die pellet machine model, the material . Therefore, we must determine the size of the opening rate according to the intensity. For straw, wood chips and other materials, opening rate than the feed ring mold ring mold smaller biomass pellet machine equipment to ensure the ring mold with good strength to prevent cracking of the ring mold. Die hole roughness is an important factor affecting the particles forming. Under the same conditions the compression ratio, the more difficult the die hole out of the coarser particles, too coarse particles also affect the surface quality, suitable roughness values ??should be between 0.8 and 1.6. Surface-hardened alloy steel ring die easily worn away the hardened layer, resulting in reduced service life. Now ring mold manufacturing production in general, after the heat treatment plus a fine reaming process, increase ring mold finish to guarantee a ring mold the material. Biomass pellet machine Model | Zhuzhou biomass pellet machine full price | grand rich configuration provided by the Zhengzhou City grand Machinery Manufacturing Company Limited. 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