Boiler slag well and hydraulic crushing shutoff door expansion joint connecting system

Abstract

The invention discloses a boiler slag well and hydraulic crushing shutoff door expansion joint connecting system. The system comprises an annular upper plate which is installed on the bottom face of an upper slag well and provided with a slag discharge port, an inner pipe body installed on the annular upper plate, a first adjusting pipe body located at the outer side of the inner pipe body and installed on the annular upper plate, an annular sealing plate arranged on the first adjusting pipe body in a sleeving manner, a lower plate arranged on the top surface of a lower hydraulic crushing shutoff door, a second adjusting pipe body positioned at the outer side of the first adjusting pipe body and arranged on the lower plate, an upper baffle arranged on the annular upper plate, a lower baffle arranged on the lower plate, a bent nonmetal temperature-resistant pressure-bearing sealing element mounted on the upper baffle and the lower baffle through fastening bolts, and a temperature-resistant thermal insulation material arranged in a cavity defined by the annular upper plate, the lower plate, the first adjusting pipe body, the second adjusting pipe body, the sealing plate, the upper baffle plate, the lower baffle plate and the bent nonmetal temperature-resistant pressure-bearing sealing element. The system is resistant to high temperature, capable of expanding in all directions and long in service life. The system can be widely applied to a boiler deslagging system.

Description

technical field [0001] The invention relates to a connection system between a boiler slag well and an expansion joint of a hydraulic crushing shut-off door, which can be widely used in a boiler slag removal system. Background technique [0002] The existing expansion joint connection devices, including circular stainless steel corrugated expansion joint connection devices, square stainless steel corrugated expansion joint connection devices, and non-metallic expansion joint connection devices, all have certain shortcomings. For the circular stainless steel bellows expansion joint connection device, under the condition of large expansion, a high installation space is required; for the square stainless steel bellows expansion joint connection device, the expansion of the four corners is limited, and the expansion is small. It is easy to be damaged; for non-metallic expansion joint connection devices, the performance of full pressure resistance and high temperature resistance i...

AI Technical Summary

Problems solved by technology

For the circular stainless steel bellows expansion joint connection device, under the condition of large expansion, a high installation space is required; for the square stainless steel bellows expansion joint connection device, the expansion of the four corners is limited, and the expansion is small. Easy to break; For non-metallic expansion joint connection device, the resistance to full pressure and high temperature is poor

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