Loose material compact molding friction wear test device

Abstract

The invention discloses a loose material compact molding friction wear test device, which comprises a molding unit, a crushing unit, a conveying unit and a physical property control unit, and is characterized in that the molding unit is used for pressing and molding a loose material, and then sending the molded loose material into a feeding port of the crushing unit through a discharging channel,and the crushing unit is used for crushing the molded material into granular materials; the particle materials are conveyed to a feeding port of the physical property control unit through the conveying unit, moisture and temperature of the particle materials are monitored through a temperature and humidity sensor in the physical property control unit, when the moisture and the temperature do not accord with preset values, moisture adding and heating operation is conducted, and after operation is completed, the particle materials are taken out. And a quenched and tempered material enters a granulating chamber of the molding unit from the discharge port of the physical property control unit to be pressed and formed. According to the invention, the real granulation process is simulated, and the extrusion force between the material and a mold disc and the temperature of a material extrusion area in the extrusion process are detected in real time, so that data support is provided for structure optimization and product innovation of biomass compact molding equipment.

Description

technical field [0001] The invention belongs to biomass densification molding equipment, in particular to a friction and wear test device for densification molding of loose materials. Background technique [0002] Biomass materials include various organisms formed through photosynthesis, such as crop straw, wood, forestry waste, etc. There are vast rural areas in my country, and biomass energy is very rich. According to statistics, there are about 700 million tons of biomass energy per year. Material raw materials are shelved and incinerated, and agricultural and forestry wastes with nowhere to be placed have prompted the rapid development of biomass granulation technology. [0003] At present, the high-end market of biomass granulation molding equipment in the world is monopolized by foreign countries. my country's technical reserves in biomass granulation equipment are far from foreign countries. Product design lacks advanced testing and testing conditions. Experience desig...

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Problems solved by technology

[0003]At present, the high-end market of biomass granulation molding equipment in the world is monopolized by foreign countries. Supported by testing and testing conditions, empirical design still occupies a large proportion, especially the low life of the die plate and rollers, which are the main components of granulation equipment, seriously restricts the development of biomass granulation equipment

At present, most of the wear experiments for biomass granulation are universal testing machines, and there is no friction and wear testing machine specifically for biomass granulation. Although the universal testing machine can achieve some indicators, it does not simulate the real granulation situation. It is impossible to control the material characteristics such as material particle size, temperature, and moisture content during the test process, and it is impossible to realize the replacement of key parts such as die plate and pressure roller, and it is impossible to realize the adjustment of technological structural parameters such as speed, feeding amount, and die roller gap. ; The relevant parameters of accurate temperature and extrusion force cannot be obtained, and data support cannot be provided for subsequent structural optimization and product innovation

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