Upright cylinder coal bunker wall-mounted polyurethane composite spiral chute

Abstract

The invention discloses an upright cylinder coal bunker wall-mounted polyurethane composite spiral chute, and solves the problems of an existing device that processes are complex, the component weightis large, the service life is short, and the installation and maintenance are inconvenient. The upright cylinder coal bunker wall-mounted polyurethane composite spiral chute is characterized by comprising three parts of a guide chute, a transitional spiral chute and a standard spiral chute, all the chutes are formed by composing a polyurethane material and a metallic framework; a warehousing modeadopts tangential feeding of the edge along the bin wall, the guide chute is [-shaped, the front of the guide chute is wide, the rear of the guide chute is narrow, and the guide chute is composed ofa bottom plate and two side retaining plates; the front portion of the transitional spiral chute is U-shaped, and the rear portion of the transitional spiral chute is L-shaped; the standard spiral chute is L-shaped; and outer edge wall plates of the chute parts are provided with bolt mounting holes and fixed on wall plates through anchor rod bolts. The upright cylinder coal bunker wall-mounted polyurethane composite spiral chute has the advantages that the characteristics of high wear resistance of polyurethane, the composite of the polyurethane and metallic framework and a mode of tangentialfeeding of the edge part are effectively utilized, the structure is simple, the installation and maintenance are convenient, the applicability is high, the service life of the spiral chute is long, the spiral chute is conductive to further improving the efficiency, and improves the comprehensive economic benefit of a coal mine.

Description

Technical field: [0001] The invention relates to a lump coal bunker feeding device, more precisely relates to a wall-mounted polyurethane composite spiral chute of an upright cylinder type coal bunker. Background technique: [0002] In my country's Ningxia, Shanxi, Shaanxi, Henan and other places, there are some high-quality lump coal production mines. The price of high-quality lump coal varies greatly with the particle size. However, it increases year by year; due to factors such as the mutual extrusion and collision of lump coal, the impact of the chute, the rolling of the sequence point, the large drop of the blanking point and other factors during the transportation process, the broken block rate remains high, which directly affects the economic benefits of the coal mine, resulting in Unnecessary waste and great loss. [0003] In order to solve the above problems, coal mine technicians in our country actively carry out technological transformation on the raw coal lifting,...

AI Technical Summary

Problems solved by technology

This technical solution has been proved to be effective in practice, but there are still a series of shortcomings that need to be further improved: 1. This set of rotary chute is an all-steel structure with a total weight of 25.9 tons, and the weight of a single piece is more than one ton. Hanging on the wall of the coal bunker at a high place, it is very difficult to install and replace the construction; 2. When entering the coal in the middle, the coal flow must be adjusted in a serpentine shape before entering the spiral to reach the position along the bunker wall, which increases the complexity of the device and cannot be controlled. The reversal and extrusion of lump coal in the serpentine stage, and some serpentine adjustment chutes need to be suspended in the air, fixed by a certain bracket, which increases the complexity of installation and maintenance and brings certain difficulties to installation and maintenance; 3. The hardness of steel structure materials Large, strong rigidity, not wear-resistant, not only easy to make the coal block collide with it and break the block, but also the steel structure chute will be worn through quickly

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