Metering and discharging device of light materials on special mortar production line

Abstract

The invention discloses a metering and discharging device of light materials on a special mortar production line. The metering and discharging device comprises a connecting pipe (1), a moving hopper (4) and a fixed hopper (7). The upper end of the connecting pipe is connected with a bin at the upper end through a material valve. The lower end of the connecting pipe is connected with a feeding valve (2) through the moving hopper. The moving hopper is mounted in the fixed hopper in a sleeved manner and moves up and down along the fixed hopper. The fixed hopper is connected with a distribution bin at the lower end through a discharging valve (8). Connecting lug plates are fixed to the barrel wall of the moving hopper and the barrel wall of the fixed hopper. Push-and-pull rods (6) are arrangedbetween the two connecting lug plates. A linear displacement sensor (5) is further arranged between the fixed hopper and the moving hopper. The linear displacement sensor is in signal connection witha distribution control system. According to the metering and discharging device, materials cannot be damaged in the discharging process, metering is accurate, no dust overflows, the production efficiency and product quality are improved, and the work environment of operation personnel is improved.

Description

technical field [0001] The invention relates to a metering and discharging device for light materials on a special mortar production line, belonging to the technical field of mortar production equipment. Background technique [0002] Special mortar refers to the mortar suitable for special requirements such as thermal insulation, sound absorption, waterproof, corrosion resistance, radiation protection and bonding. Among them, the thermal insulation mortar is made of cement, lime, gypsum as the cementing material, expanded perlite sand or expanded vermiculite sand as the aggregate, and mixed with water. It has the advantages of light bulk density, good thermal insulation and sound absorption effect, and is suitable for Roof insulation, plastering of interior walls and pipes, etc. In the traditional production line, the screw conveyor is usually used to convey the material to the batching system, and it is measured by the metering hopper. However, for the light materials in t...

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Problems solved by technology

In the traditional production line, the screw conveyor is usually used to convey the material to the batching system, and the metering is carried out through the metering hopper. The specific gravity is light and easy to break, so there are the following defects in the above-mentioned displacement measurement method: 1. Light materials are extremely easy to break. When using screw conveying, the stirring and extrusion of the screw blades on the light materials can cause more than 10% damage. Damage will not only waste raw materials, but also adversely affect the thermal insulation effect of thermal insulation mortar; 2. Since the specific gravity of light materials is only 0.13g / cm 3 , and the weighing bucket uses the load cell for weight measurement, so when the weight error displayed by the load cell is not large, but the volume error is large, it is difficult to maintain stable product quality

[0003] In order to ensure product quality, manual measurement and manual feeding are usually used for batching light materials, but this method is inefficient and difficult to meet the requirements of large-scale automated production lines, and the dust is difficult to control, and the health of workers cannot be guaranteed.

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