Ultra-high speed and high pressure precision pneumatic feed delivery valve

Abstract

The invention discloses an ultrahigh speed high-pressure accurate pneumatic feedstuff conveying valve. The feedstuff conveying valve comprises a valve pipe, a disc-shaped fixed blade with notches is arranged inside the valve pipe, and rotating blades are arranged on the fixed blade and can close or open the notches of the fixed blade in a rotating mode. A pushing rod is arranged nearby the centers of the rotating blades and can push the rotating blades to rotate. The rotating blades and the fixed blade tightly rotate and are cooperated mutually, and through radial pushing of the pushing rod, the rotating blades rotate by a certain angle in the single direction in a one-time mode so that state switching can be achieved between opening and closing. Intelligent self-walking equipment walks on a main pipeline, the valve is opened according to needs, and therefore the cost of the pneumatic conveying valve can be greatly lowered by the adoption of the design; the pneumatic conveying valve has the advantages of being adapted to high-pressure pneumatic conveying, and being capable of being opened by magnetic force, small in opening and closing space and low in cost.

Description

technical field [0001] The invention relates to a valve component for pneumatic conveying of granular feed, in particular to an ultra-high-speed, high-pressure and precise pneumatic feed conveying valve. Background technique [0002] The valves of the pneumatic ash conveying system mostly use soft-sealed dome valves. Although the price is cheap, the sealing part is easily worn by the material and leaks. When the valve is closed, the dome will be washed by high-speed ash-laden gas. Grooving in the dome completely failed the seal, causing the system to fail to maintain pressure and the valve to have to be replaced. The life of the valve is short and the maintenance cost of the system is high. In the pneumatic conveying system of Shell SCGP coal gasification process and other coal chemical processes at home and abroad, the feed valve, discharge valve, slag lock valve and balance valve between the tanks are mainly hard-sealed ball valves. Due to the dead zone in the valve cavi...

AI Technical Summary

Problems solved by technology

The funnel-shaped valve cavity in the single disc valve can eliminate the influence of material accumulation and slagging on the valve action; at the same time, the single disc valve has a simple structure and is easy to maintain. Low cost, long life, and multiple single disc valves can be connected in series, or installed and used interchangeably with ball valves, but it has certain defects for pneumatic conveying feed

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