Slurry gate valve

Abstract

The invention relates to a slurry gate valve and relates to a valve. The slurry gate valve is provided with a cutting board, a valve body, a valve cover, a stuffing, a stuffing gland, a valve rod, a shaft sleeve and a hand wheel, wherein the valve body is fixedly connected with the valve cover, the cutting board is arranged on an inner cavity of the valve body and the valve cover, the motion of the cutting board is driven by the valve rod, and the motion trail of the cutting board is determined by a guide groove in the valve body; the valve rod and the cutting board are connected by a hinge, the valve rod is provided with a notch, the cutting board is inserted into the notch, the valve cover is provided with a valve cover stuffing box, and the valve cover stuffing box is filled with the stuffing and is compacted by the stuffing gland; the valve rod passes through the valve cover stuffing box and the stuffing gland, the shaft sleeve is arranged on the valve cover, the shaft sleeve and the valve rod are in T-shaped thread fit and are fixed on the valve cover; and the hand wheel is arranged at the top of the valve rod. The slurry gate valve provided by the invention has the advantages of compact structure, small volume, light weight, convenience in transportation and installation, and effectively reduced material cost and the like; the slurry gate valve solves the serious problem that the conventional transporting-discharging paper pulp valve circulating channel is provided with a groove, is easily sitcked, is easy to scab, and is easily stuck by material; and the slurry gate valve is mainly used for papermaking slurry.

Description

technical field [0001] The invention relates to a valve, in particular to a pulp gate valve mainly used for papermaking pulp. Background technique [0002] Pulp gate valve is a commonly used valve for papermaking pulp. The existing pulp gate valve generally has the following deficiencies: [0003] 1) There are grooves in the flow channel, which are easy to store foreign matter, which will affect the opening and closing of the valve plate and cause leakage. [0004] 2) When the valve is opened, the sealing surface of the valve seat is directly washed by the fluid and is easily damaged. [0005] 3) The traditional knife gate valve has a large contact surface between the packing and the valve plate, and the friction force is relatively large. The operating force of the hand wheel is large, and the opening and closing is time-consuming and laborious. [0006] 4) The service life is short, the maintenance is frequent, and the production cost is increased. Contents of the inve...

AI Technical Summary

Problems solved by technology

[0003] 1) There are grooves in the flow channel, which are easy to store foreign matter, which will affect the opening and closing of the valve plate and cause leakage

[0004] 2) When the valve is opened, the sealing surface of the valve seat is directly washed by the fluid and is easily damaged

[0005] 3) The traditional knife gate valve packing has a large contact surface with the valve plate, the friction force is relatively large, the operating force of the hand wheel is large, and the opening and closing is time-consuming and laborious

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