An expansion joint for filling pipes
A technology of expansion joints and pipes, applied in the direction of pipes/pipe joints/fittings, adjustable connections, passing elements, etc., can solve the problems of damaged pipeline support, high labor intensity, long transportation distance, etc. The effect of prolonging the service life and reducing the incidence of damage
Active Publication Date: 2021-04-27
FENY
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Problems solved by technology
The high-pressure delivery pipeline connected to the pump outlet is a flanged steel pipe, and the delivery distance of the high-pressure delivery pipeline is long (generally more than 1000m). In general, a rigid connection is used between the filling pump and the high-pressure delivery pipeline. This connection will cause two Disadvantages: 1. Since the installation position of the filling pump and the high-pressure delivery pipeline cannot be moved, when the wearing parts in the hopper of the filling pump need to be replaced or the valve group on the high-pressure delivery pipeline needs to be repaired, due to the lack of expansion joints, replacement is difficult and labor-intensive ; 2. Due to the rigid connection, the hydraulic shock generated by the filling pump is transmitted to the pipeline support by the high-pressure delivery pipeline, which damages the pipeline support of the delivery pipeline.
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[0021] In order to describe the technical content, achieved goals and effects of the present invention in detail, the following descriptions will be made in conjunction with the embodiments and accompanying drawings.
[0022] Please refer to figure 1 As shown, the embodiment of the present invention is: an expansion joint for filling pipelines, which is composed of an outer connecting pipe 1, a sealing assembly 2, a lubricating assembly 3, an inner connecting pipe 4, a wear-resistant sleeve 5 and an adjustment device 6, The inner connecting pipe 4 includes a telescopic connection part and a limit part. The outer connecting pipe 1, the sealing assembly 2, and the wear-resistant sleeve 5 are sequentially sleeved on the telescopic connecting part from the outside to the inside. The inner connecting pipe 4 and the outer connecting pipe 1 can make relative movement along the axial direction. The wear-resistant sleeve 5 can adopt a chrome-plated wear-resistant sleeve, which has an ...
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The invention discloses an expansion joint for filling pipelines, which comprises an outer connection pipe, an adjustment device and an inner connection pipe connected in sequence, the inner connection pipe includes a telescopic connection part and a limiting part, and the telescopic connection part is arranged on The outer connecting pipe can move relative to the outer connecting pipe in the axial direction; the outer wall of the outer connecting pipe is provided with a first adjusting device installation hole, and the limiting part is provided with an adjusting device and a second adjusting device. One end of the adjustment device is connected to the installation hole of the first adjustment device, and the other end is connected to the installation hole of the second adjustment device. Compared with the prior art, the device has simple structure, low manufacturing cost and convenient assembly and disassembly.
Description
technical field [0001] The invention relates to the field of mine paste filling devices, in particular to an expansion joint used for filling pipelines. Background technique [0002] With the development and utilization of mineral resources, environmental pollution has become a major problem that cannot be ignored. Tailings, coal gangue, fly ash, and industrial slag produced during the development and utilization of mineral resources have become the largest solid waste in my country. About 80% of the total. Paste filling is currently one of the most effective methods for recycling this type of solid waste. This technology is to make solid waste such as tailings, coal gangue, fly ash, and industrial slag near the mine into a paste that does not need to be dehydrated. Slurry is transported to the goaf through long distance and high pressure. The paste delivery pressure is generated by the filling pump and delivered to the underground through the high-pressure delivery pipelin...
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IPC IPC(8): F16L27/12
CPCF16L27/12
Inventor 杨良庚姜寄陶平
Owner FENY