Hanger rod device for hearth charging of lime double-hearth shaft kiln

Abstract

The invention relates to a hanger rod device for hearth charging of a lime double-hearth shaft kiln. The hanger rod device comprises a counterweight system, a hydraulic cylinder, a hanger rod, a hanger rod upper fixation apparatus, a guide frame, a fixed guide rail, limit switches, an end seal structure and an air supply cooling system. The hydraulic cylinder drives the guide frame to drive the hanger rod to do up and down reciprocating motion so as to convey materials into the lime double-hearth shaft kiln, at the moment a seal cone of the end seal structure and a T-shaped seal ring are always in sliding contact seal to prevent the smoke and dust in the kiln from leaking and polluting the environment, at the same time, a counterweight trolley of the counterweight system does reciprocatingmotion along an oblique slideway, the weight setting of the counterweight trolley can balance the workload so as to reduce the working oil pressure of the hydraulic cylinder, reduce the power consumption of a hydraulic workstation and save energy. In addition, the air supply cooling system conveys cooling air to the T-shaped seal ring for cooling, thus lowering the damage probability, reducing the maintenance time and cost, and improving the labor productivity.

Description

technical field [0001] The invention relates to a material feeding device in the technical field of metallurgical furnaces, in particular to a suspension rod device for feeding materials in a lime double-chamber shaft kiln. Background technique [0002] The existing hanger device for charging the kiln chamber of the lime double-chamber shaft kiln has the following defects during use: [0003] 1) When the boom device moves up and down reciprocatingly, it is very easy to jam, and it is difficult to reset after jamming. At present, the method of expanding the movement gap is generally used to prevent it from jamming, but a large gap will cause poor sealing. As a result, a large amount of high-temperature smoke and dust will leak out and pollute the environment; [0004] 2) The power source for the up and down reciprocating movement of the boom device comes from the hydraulic cylinder. In order to overcome its own weight and the weight of the conveyed material, the oil pressure...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defects of the existing technology, the technical problem solved by the present invention is to provide a boom device for charging the kiln chamber of a lime double-chamber shaft kiln, which can solve the problem that the working oil pressure of the hydraulic cylinder is too high, and the multi-dimensional swing error is large when the boom device moves back and forth. The problem of difficult sealing caused by it reduces power consumption, saves production costs, reduces maintenance time and costs, improves labor productivity, and has a good sealing effect, reduces dust and smoke leakage, and reduces environmental pollution.

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