A negative pressure conveying bin bottom retrieving device

Abstract

The invention provides a negative-pressure conveying bin bottom material fetching device. The negative-pressure conveying bin bottom material fetching device comprises a material fetching device main body connection pipe, a bulk material bin, a valve body and an execution cylinder, wherein the material fetching device main body connection pipe is directly connected to the bottom of the bulk material bin; the side surface of the material fetching device main body connection pipe is connected with the valve body; a material fetching passage is formed in the valve body and vertically communicates with a material conveying pipe below the valve body; a valve element is arranged in the valve body; the rear end of the valve element is provided with a notch and is connected with the execution cylinder through a connection plate; the execution cylinder is connected with the valve body through an assembly plate; the part, connected with the material fetching device main body connection pipe, of the valve body is fixedly provided with a first sealing ring; when the valve element is at a closing state, sealing is maintained; and the rear end of the valve element is provided with a second sealing ring, and the second sealing ring moves along with the valve element, so that the interval between the valve element and the inner wall of the valve body is in a sealing state all the time. The negative-pressure conveying bin bottom material fetching device has the beneficial effects that a modular structure is adopted, so that movement is simple and reliable; and the assembly is rapid; space is saved; and no connection bend is needed.

Description

technical field [0001] The invention relates to a material retrieving device for a bulk material silo, in particular to a material retrieving device at the bottom of a negative pressure conveying silo. Background technique [0002] At present, the commonly used structure of the bottom reclaiming device of the bulk silo is to directly connect the reclaiming pipe and the valve for reclaiming, such as figure 1 As shown, the material in the bulk material bin 1' passes through the bottom distribution pipe 2', and enters the retrieving pipe 5' or 6' through the valve 3' or valve 4'. There are multiple elbows in the pipeline, and the material is conveyed It will bring more abrasion and energy loss. In the case of multi-point reclaiming and multi-group conveying, such as figure 2 As shown, the pipeline connection is very complicated, and there are many distribution pipes, elbows and valves, which are highly abrasive, costly, take up a lot of space, and are time-consuming and labo...

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used structure of the bottom reclaiming device of the bulk silo is to directly connect the reclaiming pipe and the valve for reclaiming, such as figure 1 As shown, the material in the bulk material bin 1' passes through the bottom distribution pipe 2', and enters the retrieving pipe 5' or 6' through the valve 3' or valve 4'. There are multiple elbows in the pipeline, and the material is conveyed More abrasion and energy loss

In the case of multi-point reclaiming and multi-group conveying, such as figure 2 As shown, the pipeline connection is very complicated, there are many distribution pipes, elbows and valves, which are abrasive, costly, take up a lot of space, and are time-consuming and laborious to install.

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