CN2257340Y

CN2257340Y - Mortar and pulp granular valve

Info

Publication number: CN2257340Y
Application number: CN 96225512
Authority: CN
Inventors: 杨树蔚
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-05
Filing date: 1996-03-05
Publication date: 1997-07-02
Anticipated expiration: 2006-03-05

Abstract

The utility model discloses a mortar and pulp granular valve which belongs to the valve used for conveying slurry type powder solid particles, which is suitable for conveying coal slag, ore pulp, slurry, the powder solid, corn, etc. The utility model is provided with a valve body and plane gate valves, wherein, the gate valves are provided with holes of the gate valves which can be matched with passages of the valve body. The utility model has the structure of short length and basically adopts dual-clamp valves. When a passage is opened, the utility model is equivalent to a section of straight pipe, and sealing assemblies can not be wore by materials and can be self-sealed. The utility model eliminates the flow resistance of the valves and vortex erosion and improves the conveying capacity of the valves. The utility model has the advantages of simple structure, long service life, low cost, and electric, hydrodynamic, and pneumatic opening and closing. When the utility model is opened, transmission rods have no raising movements, and the height is low when the utility model is fully opened.

Description

Mortar and pulp granular valve

The utility model relates to a kind of valve of carrying slurry class, mealy solid particle.

The particle solid material of the ore pulp of present domestic ore dressing, power station coal ash, harbour and hydraulic fill pipeline are carried most adopt line with rubber gate valve and rubber pipe valve control, these valve mechanism length are long, starting power is big, easily press from both sides the material medium between two sealing surfaces, particularly gate valve is all the more so, thereby sealability is bad, and the life-span is low, and the cost height, and the stop valve of type, ball valve can not use in above-mentioned occasion usually.

The purpose of this utility model provides a kind of novel selfsealings and can prevent the structure valve that valve pocket internal upper part material medium is ganged up downwards.This valve flashboard and two sealing seats are adjacent to, and advance foul and material with anti-pinch, and good seal performance is wear-resisting, and particularly material can not be ganged up downwards and flashboard cuts out once more and can not be obstructed, improve working life.

The purpose of this utility model is achieved in that Mortar and pulp granular valve, include valve body (2), flashboard (4), black box (3) and transmission device, two black boies (3) are located on valve body two sealing seats, and be adjacent to plane flashboard (4), flashboard has the flashboard hole on (4), can match with valve channel, reach the unlatching path.

Above-mentioned Mortar and pulp granular valve also includes separator (6), is located at body cavity, and an end is connected with the inwall of valve pocket flashboard major axis, and the other end links to each other with valve seat outer shroud edge.Make underdrive on the flashboard by transmission device, realize opening and closing of valve plate.

The utility model has adopted the flashboard of planar band path, be contained in the middle of two sealing surfaces, can be adjacent to slide switch, be difficult for sandwiching foul and material between its sealing surface, be not subjected to the erosive wear of conveying material medium yet, the suitable straight-run of pipe of this valve, the medium on valve pocket top because the isolation of separator 6 can not fall into the body cavity bottom, is obstructed in case close flashboard once more, the sealability and the working life of valve have been improved, reduce circulating resistance, improved the conveying capacity of valve, of the present utility model simple in structure, structure length is short, in light weight, start flexibly, reliable performance and cost are low.

Below in conjunction with accompanying drawing the utility model is explained in detail.

Fig. 1 is the Y cross-sectional schematic of a kind of specific embodiment of the present utility model.

Fig. 2 is a positive diagrammatic sketch of the present utility model.

Fig. 3 is the annular seal assembly and the separator structural representation in A-A cross section among Fig. 2.

Fig. 4 is another kind of embodiment's a Y cross-sectional schematic.

Fig. 5 is this embodiment's a positive diagrammatic sketch.

Fig. 6 is the annular seal assembly and the separator structural representation in A-A cross section among Fig. 5.

Valve body 2 lower ends are with 1 sealing of end cap spacer elements among the figure, and the both sides of valve body connect with pipeline flange, flashboard 4 pack into lining type black box 3 and Sealing 14 centres, and black box outer ring two sealing seats are provided with anti-dirty ring.Fig. 1 is the flashboard closed condition, and valve body upper end is provided with Stuffing box 5 and Gland 8, is used for the seal valve inner chamber to leak outside.The Gland both sides are provided with cradling piece 9 and bearing 11, above flashboard 4 or axle center extension bar 15, at least one side is equipped with transmission nut, screw rod, can adorn transmission nut 10 in both sides to large bore valves combines with screw rod 7, this screw rod axle center and the biasing of valve body axle center, transmission switch handwheel spare 12 is housed above screw rod 7, or other as electronic, surge, the pneumatic gearing transposition.When driving flashboard, move down, the pipeline side is got through, and the material medium of valve epicoele can only be opened to descend and fail away because the isolation of separator 6 can not fall into lower valve chamber with flashboard, and separator 6 also can be made one with valve body 2 and see Fig. 6.

Fig. 2 is the positive diagrammatic sketch of Fig. 1, and is provided with separator 6.

Fig. 3 be among Fig. 2 A-A analyse and observe black box figure, (lining type Sealing 3) the I type of employing and (Sealing 14) II type elastic sealing ring, then U type or square type annular groove can reach selfsealings when both sides inside and outside the seal ring produce pressure reduction, in the time of can not making U or the distortion of square type annular groove as if operating mode pressure reduction is very little, it can rely on the interference elastic force of assembling and seal.The sealing assembly can a side be made Fig. 3 (lining type Sealing 3) I type or (Sealing 14) II type, also can on flashboard both sides sealing seat, make I type or II type entirely, its U type or square type annular groove can be arranged on the seal ring internal diameter, also can be placed on external diameter, all can reach the selfsealings performance.Separator 6 is for preventing that body cavity top material medium from falling into cavity of resorption and stopping up that flashboard is descending to be provided with.Separator 6 also can be made one with valve body 2.Part 13 also can play the double seal effect for anti-foul enters the anti-dirty ring that U type or square type closure gasket groove are provided with.

Fig. 4, Fig. 5 and Fig. 6 are another enforcement structures of Fig. 1 and Fig. 2 and Fig. 3, and the function of two valves is identical, just round bar is changed system on square type flashboard top, to adapt to different big smaller diameter valves and manufacturing capacities.Fig. 6 makes one to separator 6 and valve body 2.

Claims

1, a kind of Mortar and pulp granular valve, include valve body (2), flashboard (4), black box (3) and transmission device, it is characterized in that two black boies (3) are located on valve body two sealing seats, and be adjacent to plane flashboard (4), flashboard has the flashboard hole on (4), can match with valve channel, reach the unlatching path.

2, Mortar and pulp granular valve according to claim 1 is characterized in that it also includes separator (6), is located at body cavity, and an end is connected with the inwall of valve pocket flashboard major axis, and+the other end links to each other with valve seat outer shroud edge.

3, Mortar and pulp granular valve according to claim 1 is characterized in that black box can adopt the elastic sealing ring of U-shaped or rectangle.