Revolving drum sprayed concrete quantitative feeding controlling device

Abstract

The invention discloses a revolving drum sprayed concrete quantitative feeding controlling device. An outer drum is composed of an inverted cone drum on the upper portion and a cylinder on the lower portion, and the inverted cone drum and the cylinder are arranged integrally. A base plate is horizontally and fixedly arranged at the bottom of the outer drum, a discharge outlet is formed in the base plate. A baffle is horizontally and fixedly arranged in the outer drum and located over the base plate, and it is guaranteed that the projected area of the baffle on the base plate just covers up the discharge outlet completely. All partition plates centering on the outer drum in a divergent shape are vertically arranged between the baffle and the base plate, and equally divide the space between the baffle and the base plate. A rotor is a curved surface body and contains rotor curved surfaces with the number being equal to the partition plates. One rotor curved surface is arranged correspondingly between the adjacent partition plates. The lower ends of the rotor curved surfaces incline outward gradually, and finally, all dry mixing materials are guaranteed to fall into the discharge outlet directly through the rotor curved surfaces, and not allowed to remain on the base plate to cause clamping stagnation. The structure is simple, the construction cost is low; occupied space is small; installation is convenient; the labor intensity is obviously reduced; and quantitative control over concrete feeding is achieved.

Description

technical field [0001] The invention relates to the technical field of shotcrete equipment components, in particular to a rotary drum type shotcrete quantitative feeding control device. Background technique [0002] In the existing underground engineering, especially in the tunnel engineering and mining engineering, the dry jetting system is widely used due to the advantages of simple operation and low cost of equipment and equipment. However, the traditional dry jetting system generally uses manual addition of dry mix into the hopper, which is labor-intensive and low in production efficiency. Moreover, due to the manual operation, the speed of feeding and the amount of dry mix cannot be accurately loaded. Control, indirectly leads to the unscientific blending ratio with the quick-setting agent, resulting in quality problems of shotcrete, and at the same time, it is very easy to cause dust problems. [0003] With the development of technology, screw conveying barrels and au...

AI Technical Summary

Problems solved by technology

However, the traditional dry jetting system generally uses manual addition of dry mix into the hopper, which is labor-intensive and low in production efficiency, and due to the manual operation, the speed of feeding and the amount of dry mix cannot be accurately loaded. Control, indirectly lead to unscientific blending ratio with accelerator, resulting in quality problems of sprayed concrete, and at the same time, it is very easy to cause dust problems

[0003] With the development of technology, screw conveying barrels, automatic lifting barrels, etc. have also appeared in terms of shotcrete feeding machines, but the machines used are high in cost, occupy a large space, have complex structures, and are cumbersome to operate. The problem of controlling the amount of material loaded caused unnecessary impact on the underground engineering operations that originally had a narrow working space

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