Pneumatic gate valve for feeding of roll squeezer

Abstract

The invention relates to improvement on a pneumatic gate valve structure for feeding of a roll squeezer. A pneumatic gate valve for feeding of the roll squeezer comprises a shell provided with a feed port, wherein a gate valve and a driving cylinder for driving the gate valve to move are arranged on the shell; and the pneumatic gate valve for feeding of the roll squeezer is characterized in that the gate valve comprises at least two layers of valve plates which are vertically arranged. The pneumatic gate valve for feeding of the roll squeezer has the advantages that: 1) a plurality of layers of valve plates are arranged; when materials are required to be cut off, each valve plate moves; and most of the materials are blocked by the valve plate of the upper layer, so that even though the valve plate of the upper layer is blocked by the materials, the valve plate of the lower layer can be closed smoothly to cut off the materials; and 2) in order to provide the compactness and the material cut-off effect of a device, a valve plate 1 and a valve plate 2 are vertically arranged and move oppositely, so that when the materials are cut off, the opening end of the valve plate 2 of the lower layer is blocked by the valve plate of the upper layer and cannot be blocked by the materials; therefore, the materials are cut off quickly and conveniently and the normal running of the roll squeezer is ensured.

Description

technical field [0001] The invention relates to an improvement of the structure of a pneumatic gate valve for feeding a roller press. Background technique [0002] The pneumatic gate valve is a valve set above the feeding device of the roller press to control feeding and cutting, which is very important. Under normal circumstances, open the feeding when the roller press system is turned on, and close and cut off the material before stopping the roller press system; in special cases, it needs to be closed for a short time before opening, such as the roller press due to uneven material particles or gas vibration. When there is severe vibration, the pneumatic gate valve can be closed for a short time to reduce the vibration of the equipment, and then open the pneumatic gate valve to slowly resume feeding, so as to avoid stopping the equipment of the entire system and effectively improve the system operation rate and energy saving. [0003] The ordinary gate valve is a one-way...

AI Technical Summary

Problems solved by technology

[0003] The ordinary gate valve is a one-way single-layer pneumatic gate valve: it contains a valve plate, because the material entering the roller press is a mixture of particles and fine powder with a maximum size of 50-60 mm, the space above and below the gate valve The interior is generally filled with this kind of mixture. The commonly used one-way single-layer pneumatic gate valve is easily stuck by large pieces of material when it is closed and cannot be completely closed, resulting in the inability to completely cut off the material, which will seriously affect the operation of the equipment. and run

Images