Biomass briquetting machine

Abstract

The invention discloses a biomass briquetting machine, belonging to the field of processing and molding biomass. The biomass briquetting machine comprises a feeding device, a press roll device, a press roll fixing device, a molding mould and a power transmission device. The biomass briquetting machine has the advantages of saving material, reducing the abrasion for a press roll, being convenient to replace and disassemble, stable and even in feeding and energy-saving, and increasing the yield; and the biomass briquetting machine also has the beneficial effects of being firm in fixation of the press roll and stable in operation of the press roll, and reducing the safety accidents; furthermore, the biomass briquetting machine has the advantages of being simple and convenient in installation and disassembly of the mould, reducing the abrasion for the mould, being smooth in material discharge and high in material adaptability, and reducing the energy consumption.

Description

technical field [0001] The invention discloses a biomass molding machine, which belongs to the field of biomass processing and molding. Background technique [0002] With the introduction of environmental protection theory, burning appliances using biomass as fuel are widely used in industry and life, so biomass processing equipment has emerged as the times require. [0003] First of all, in the feeding process of biomass processing, how to feed and how to make the material uninterrupted, feed evenly and save energy during the feeding process have not been effectively solved. Later, the patent No. 200920311919.7 appeared, the application date was September 29, 2009, and the invention name was a patented technical solution for a biomass feeding device. The patented technical solution is: a biomass feeding device, including a feed port, A feed bin, a screw conveyor, and a feeding port, the bottom of the feed bin is connected to a feed bin, and the feed bin includes a feed bin...

AI Technical Summary

Problems solved by technology

[0006] First of all, the joint surface between the fixed roller shaft and the roller sleeve is an overflow connection, and the roller sleeve must be heated for a long time before assembly, so that the inner hole of the sleeve can obtain enough expansion, so that it can be smoothly installed on the roller shaft, wasting A large amount of assembly time affects the assembly progress and increases the production cost;

[0007] Second, due to the long heating time and high temperature of the roller sleeve, it inevitably has a certain impact on the material of the roller sleeve, which affects the mechanical properties of the roller sleeve, especially the roller, and shortens the service life of the roller sleeve. ;

[0008] Third, after the roller sleeve is installed on the roller shaft, the contact surface between the roller sleeve and the roller shaft is relatively large, and the heated inner hole expands the roller sleeve due to uneven cooling, and the outer side of the roller sleeve cools quickly, resulting in the middle area of ​​the joint surface is not completely Complete contact, there may even be a gap. When the roller press (mill) is working, the roller sleeve is subjected to high-pressure extrusion. This gap affects the tightness of the roller sleeve and the roller shaft. It reduces the assembly reliability and connection strength of the roller sleeve and the roller shaft, and shortens the service life of the extrusion roller;

[0009] Fourth, the squeeze roller sleeve is a vulnerable part, and the replacement cycle is relatively frequent. The squeeze roller assembled by the hot-fit method needs to be disassembled with special equipment. Generally, the site does not have the ability to disassemble, and it needs to be returned to the factory, which increases maintenance. cost and time;

[0010] Fifth, the roller sleeve is assembled by heating. Due to the high temperature of the roller sleeve, it is convenient to measure the inner pinch. During assembly, the inner hole of the roll damage does not fully expand to the size and gets stuck on the roller shaft. In severe cases, the roller sleeve is scrapped , delaying production and increasing costs

[0011] (2) The structure of the combination of the roller shaft and the roller sleeve with a key. This structure has the following disadvantages: First, the processing of the keyway and the key of the roller shaft and the roller sleeve is increased, which increases the production cost and prolongs the production time.

[0013] Secondly, the roller shaft and the roller sleeve increase the stress concentration point at the keyway. When the roller press (mill) is working normally, the extrusion roller is squeezed by high pressure. Under the action of cyclic fatigue stress, the stress concentration part will even produce cracks, which will affect To the reliability of the roller sleeve;

[0014] Third, during long-term load operation, the key is prone to deformation and damage, making it difficult to disassemble and even damage the extrusion roller sleeve and roller shaft.

This method obviously cannot fix the pressure roller

[0019] Finally, in the process of biomass molding, the molding machine has low output, high energy consumption, high failure rate, serious mold wear, stable molding part after the material is extruded from the mold, easy blockage of the mold, and other problems that have not been effectively solved.

[0021] 1. The wedge-shaped tooth-shaped module is adopted, although it is convenient for the material to enter the mold channel, but the mold is easily damaged under the long-term wear of the pressure roller and the material;

[0022] 2. Since the material outlet is larger than the inlet, the power required for material extrusion is increased. Therefore, the power consumption must be increased, and there is a danger of blocking the mold channel, which in turn will cause a safety accident.

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