Discharging valve

Abstract

The utility model discloses a discharge valve which comprises a valve body installed at the bottom of a reaction kettle or a storage tank and used for discharging, and a valve plate used for controlling discharging is arranged at a discharging opening in the valve body. A rotating shaft which is parallel to the blanking port and rotates along the valve body is arranged in the valve body, the valve plate is arranged on the rotating shaft through a connecting rod, a crank is arranged on the rotating shaft extending out of the valve body, an air cylinder used for driving the crank to rotate is arranged on the outer side of the valve body, the bottom of the air cylinder is hinged to the valve body, and the end of a telescopic rod of the air cylinder is hinged to the crank; and a silica gel sealing ring which is assembled with the valve plate and is used for improving the sealing performance of the valve plate is arranged at the blanking port of the valve body. According to the utility model, the silica gel sealing ring is arranged at the blanking port of the valve body, the groove is formed in the silica gel sealing ring, and the convex block on the valve plate is inserted into the sealing strip to realize the sealing between the valve plate and the silica gel sealing ring, so that the position deviation can be effectively avoided, the gap between the valve plate and the silica gel sealing ring is reduced, and the sealing effect of the valve plate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field more particularly relates to a kind of discharge valves. BACKGROUND

[0002] Discharge valve is usually installed at the bottom of reactor or storage tank, for discharge, discharge, sampling and realizing no dead zone shut-off operation, can effectively eliminate the residual phenomenon of process medium at the outlet of container, ensure the complete discharge of material.

[0003] Discharge valve is widely used in various industrial fields, especially in the occasion needing to discharge solid particles or powder materials, after long time opening and closing, gap between valve plate and valve body is prone to appear, when valve plate is closed, dust can leak out along the gap, how to realize good sealing effect in the process of frequent discharge to prevent dust leakage, achieve the environmental protection requirement of "zero leakage", it is a technical problem to be solved urgently now. UTILITY MODEL CONTENT

[0004] The utility model needs to solve the technical problem to provide a kind of discharge valve, improve the sealing performance of valve plate and valve body, improve sealing effect, prevent dust leakage.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is as follows.

[0006] A kind of discharge valve, including the valve body for discharging installed at the bottom of reactor or storage tank, the valve plate for controlling discharge is arranged at the discharge opening in the valve body;The rotating shaft parallel to the discharge opening and along the valve body is arranged in the valve body, the rotating shaft is arranged on the valve plate by connecting rod, the crank is arranged on the rotating shaft that extends the valve body, the gas cylinder for driving the rotation of crank is arranged on the outside of valve body, the bottom of gas cylinder is hinged with valve body, the end of gas cylinder telescopic rod is hinged with crank;The silica gel sealing ring for improving the sealing performance of valve plate is arranged with valve plate at the discharge opening of valve body.

[0007] Further optimize technical scheme, the receiving hopper connected at the bottom of reactor or storage tank is arranged on the valve body.

[0008] Further optimize technical scheme, the counterweight for increasing the stability of valve body is arranged at the bottom end of crank.

[0009] Further optimize technical scheme, the silica gel sealing ring is arranged in the valve body by mounting block.

[0010] Further optimize technical scheme, the recess is opened in the side of silica gel sealing ring and valve plate contact, the convex block for improving the sealing performance between valve plate and silica gel sealing ring is arranged in the recess of the edge of valve plate.

[0011] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model is as follows.

[0012] The utility model provides a kind of unloading valve, silicon seal ring is set in the blanking port of valve body, and groove is set on silicon seal ring, the sealing between valve plate and silicon seal ring is realized by the insertion of lug on valve plate into sealing strip, position deviation can be effectively avoided, the gap between valve plate and silicon seal ring is reduced, and the sealing effect of valve plate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model;

[0014] Figure 2 It is the internal structure schematic diagram of the utility model;

[0015] Figure 3 It is the utility model Figure 2 Enlarged structure schematic diagram of A place in the utility model.

[0016] Among them: 1.valve body, 2.receiving hopper, 3.pivot, 4.crank, 5.counterweight, 6.cylinder, 7.connecting rod, 8.valve plate, 9.mounting block, 10.silicon seal ring, 11.lug. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in connection with the drawings and specific embodiment.

[0018] An unloading valve, in combination Figures 1 to 3 As shown in the figure, it includes valve body 1, receiving hopper 2 is arranged on valve body 1, valve body 1 is arranged at the bottom of reaction kettle or storage tank through receiving hopper 2, blanking port in valve body 1 is provided with valve plate 8, to control discharge.

[0019] Pivot 3 is arranged along the rotation of valve body in the inside of valve body 1, pivot 3 is arranged in parallel with blanking port, valve plate 8 is arranged on pivot 3 through connecting rod 7, crank 4 is arranged on pivot 3 that protrudes valve body 1, cylinder 6 is arranged on the outside of valve body 1, the bottom of cylinder 6 is hinged with valve body 1, the end of cylinder telescopic rod is hinged with crank 4, cylinder pushes crank to rotate, drives pivot to rotate, and the rotation drives the rotation of valve plate, so as to realize the opening and closing of blanking port.

[0020] The bottom end of crank 4 is provided with counterweight 5, to provide pressure for the rotation of crank, and the stability of valve body is enhanced.

[0021] In order to improve the sealing performance between valve plate 8 and valve body 1, silicon seal ring 10 is arranged at blanking port of valve body 1, silicon seal ring 10 is matched with valve plate 8, to realize the sealing between valve plate and valve body.

[0022] The silica gel sealing ring 10 is arranged in the valve body 1 through the mounting block 9, one side of the silica gel sealing ring 10 is provided with a groove at the joint with the valve plate 8, and the edge of the valve plate 8 is provided with a protrusion 11 which is inserted into the groove to improve the sealing performance between the valve plate 8 and the silica gel sealing ring 10.

[0023] The utility model discloses a silica gel sealing ring is set up at the blanking port of valve body, and the groove is set up on the silica gel sealing ring, and the sealing between the valve plate and the silica gel sealing ring is realized through the protrusion on the valve plate being inserted into the sealing strip, can effectively avoid position deviation, reduce the gap between the valve plate and the silica gel sealing ring, improve the sealing effect of valve plate.

Claims

1. A discharge valve comprising a valve body (1) installed at the bottom of a reactor or a storage tank for discharging, a valve plate (8) arranged at a discharge opening in the valve body (1) for controlling the discharging; characterized in that: The valve body (1) is provided with a rotating shaft (3) parallel to the blanking port and along the valve body (1), the valve plate (8) is provided on the rotating shaft (3) through a connecting rod (7), a crank (4) is provided on the rotating shaft of the valve body (1) and extends out of the valve body (1), the outer side of the valve body (1) is provided with a cylinder (6) for driving the crank to rotate, the bottom of the cylinder (6) is hinged to the valve body (1), and the end of the cylinder telescopic rod is hinged to the crank (4); the blanking port of the valve body (1) is provided with a silica gel sealing ring (10) matched with the valve plate (8) for improving the sealing performance of the valve plate; one side of the silica gel sealing ring (10) in contact with the valve plate (8) is provided with a groove, and the edge of the valve plate (8) is provided with a protruding block (11) inserted into the groove for improving the sealing performance between the valve plate and the silica gel sealing ring.

2. A dump valve according to claim 1, characterised in that: The valve body (1) is provided with a receiving hopper (2) connected to the bottom of a reaction kettle or a storage tank.

3. A dump valve according to claim 1, wherein: The bottom end of the crank (4) is provided with a counterweight (5) for increasing the stability of the valve body.

4. A dump valve according to claim 1, wherein: The silica gel sealing ring (10) is arranged in the valve body (1) through a mounting block (9).

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