A kind of back pressure type volume reduction molding equipment and its operation method

Abstract

The invention discloses a back pressure type volume reduction forming equipment and an operating method thereof. A drive forming roller shaft (3-4) and a driven forming roller shaft (3-5) which rotate oppositely are arranged abreast in a back pressure type volume reduction forming bin (3-2); forming grooves are both formed in the two forming roller shafts; hollow inner cavities of the two forming shafts are both connected with a vacuum pump; and a high pressure gas generator (3-6) in which high pressure mixed gas is filled is also arranged in the back pressure type volume reduction forming bin (3-2). The operating method comprises the following steps: 1) starting a transmission motor (2-1) to ensure that the drive forming roller shaft (3-4) and the driven forming roller shaft (3-5) oppositely rotate; 2) forming a negative pressure environment in the back pressure type volume reduction forming bin (3-2); 3) pouring raw materials into a back pressure type volume reduction forming mechanism (3), and discharging particles which are obtained by processing the raw materials out of a discharging bin (3-3). According to the equipment and the operating method, the automatic degree and the forming efficiency of the forming equipment can be improved, and the energy consumption waste is reduced.

Description

technical field [0001] The invention relates to a molding device and its operating method, in particular to a back pressure type volume reduction molding device and its operating method. Background technique [0002] The forming machine is widely used in the processing of granular fertilizers, retentate and other products. The forming process is: the dry material is agglomerated into dense and hard material blocks under the extrusion of the rotating roller, and the material block is crushed and screened by the rotating roller to reach the final product. Granules for strength requirements. [0003] Molding machines involve a wide range of fields, but at present, the energy consumption of molding machines in China accounts for as high as 12% of the entire industrial energy consumption. Among the most widely used conventional molding machine equipment, more than three quarters are hot air molding machines. The waste of energy consumption of similar molding machine equipment is...

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Problems solved by technology

[0003] Molding machines involve a wide range of fields, but at present, the energy consumption of molding machines in China accounts for as high as 12% of the entire industrial energy consumption. Among the most widely used conventional molding machine equipment, more than three quarters are hot air molding machines. The waste of energy consumption of similar molding machine equipment is very serious, and the manual rolling extrusion method is often used for molding production, and the production efficiency is low

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