CN2072622U - Slag starch valve - Google Patents

Abstract

The utility model relates to a slag starch valve, and belongs to the field of the control machine member of the large granule slag starch material pipeline transportation. The utility model is provided for solving the problems of low sealing performance, corrosion resistance, abrasive resistance, free opening and closing, low energy consumption, long service life, etc. when the acid and basicity granule slag starch material passes through the valve. The utility model is a valve with a common elevating power transmission mechanism. The utility model is characterized in that the inlet and the outlet of the valve body adopt the high and low type; the interior of an outlet hole is provided with a sealing seat; the interior of the sealing seat is inlined with a circular knife; the end face of the sealing seat is provided with a sealing ring with the elastic function; a valve rod and a gate valve are carried with the heat treatment and are coated with hard chromium; the interior of the gate plate hole is inlined with a circular knife. The utility model is suitable for the industries of metallurgy, coal, mine, chemical engineering, building material, electricity, etc.

Description

Slag starch valve

Slurry valve belongs to large particle slurry material pipe and carries control parts field.

Consult the investigation of domestic relevant technologies data and valve specialized factory, industries such as China's metallurgy, coal, electric power, mine, building materials, chemical industry, in wet mining, ore dressing, the processing of transportation mine tailing and slag slurry etc. are aspect the use line transportation, all need a large amount of mesohigh industry valves to control on pipeline, China mostly adopts Wedge gate valve at present.Because this valve is to be used for clear water, in the acid that contains in various degree, carrying out switch on the pipeline that the muddy granule materials of alkalescence passes through uses, because the corrosion of soda acid and granule materials are to the wearing and tearing of valve, shortened its working life greatly, because what pass through in the conveyance conduit is particle slag slurry material, when valve closing, close difficulty, sealing is poor after closing, clear water runs off many, valve after closing is owing to the particle slag is starched material in the ducted static precipitation that produces, and when open again, power consumption is big, cause parts to damage sometimes, influence ordinary production.Can adapt to the material that passes through the 2mm granularity though there is the ore pulp valve to come out in recent years, also some improves than Wedge gate valve on the sealability, but wear resistance and the working pressure of bearing, by the granularity of granule materials, the line transportation that the life-span can't be satisfied day new development contains the requirement that the large particle slag is starched the required valve of material.

The objective of the invention is to make a kind of novel valve---slurry valve.When containing oarse-grained slag slurry material, frequent switching, at sealing, corrosion resistance, wear resistance, bearing capacity, the flexibility of switching, aspects such as energy saving and working life can both satisfy the requirement of production environment.

A kind of slurry valve that has common opening to close transmission of power and range controlling mechanism is characterized in that: (with reference to accompanying drawing)

1: in the design of valve body (1), import and export and adopt discrepancy in elevation mode, i.e. import is low, and outlet is high.And have on the corresponding valve interior wall of pipe-type outlet one with the measure-alike bottom tube shape bulge jaggy of sealing seat (4) inside and outside circle, be shaped on annular groove on the raised head face, the spring (2) of packing into earlier in the groove, after the seal ring (3) of packing into.Sealing seat (4) is housed in the exit orifice, and sealing seat is being near being shaped on annular groove on the end end face of flashboard, the spring (2) of packing into earlier in the groove, after the seal ring (3) of packing into.Also stud with cutting ring (5) in sealing seat (4) is equipped with the hole of an end sealing seat (4) of seal ring (3), the end face of cutting ring (5) aligns with the end face of sealing seat (4).

2: be contained in the flashboard (6) on the valve rod (7), bi-side are parallel, the bottom of flashboard (6) is shaped on the hole with the same size of cutting ring (5) cylindrical, and cutting ring (5) valve rod (7), the flashboard (6) that stud with onesize interior external diameter in the hole are selected the high-quality steel for use, heat treatment and hard chromium plating.

The advantage of slurry valve is: it is installed in by having when working on the oarse-grained slag slurry pipeline:

(1), owing to all studs with cutting ring in the hole of the flashboard bottom of slurry valve and in the sealing seat, in the flashboard lifting process, can be cut off by two cutting rings the granule materials between flashboard and the sealing seat, played slag inclusion effect between removing flashboard and the sealing seat, the wearing and tearing of flashboard and sealing seat end face and seal ring have been reduced, reduce lift capability consumption, prolonged working life.

(2), when slurry valve is in closed condition, its relies on the pressure difference of flashboard both sides to force flashboard to be attached to tightly on the end face of sealing, this is the main sealing after slurry valve is closed.Sealing under the spring action encloses auxiliary seal, thereby clear water can not be run off, and is in good sealing state.

(3), the valve body of slurry valve in design, because importing and exporting and having adopted discrepancy in elevation mode is that import is low, outlet is high, thereby has avoided slurry valve when closing, can not put in place because of the precipitation material is arranged at the bottom, close and not tight, power consumption is big, when open, because of there being a large amount of sludges that flashboard is shut, cause open difficulty, power consumption is big, or damages parts.

(4) valve rod of slurry valve, flashboard is all selected the high-quality steel for use and is heat-treated, and then is coated with hard chromium layers again, has avoided acid, and basic slag is starched its corrosion and the wearing and tearing under the rugged environment, has improved valve rod greatly, the working life of flashboard.

Embodiment: with reference to accompanying drawing: pattern be flashboard in off position, arrow fingering outgoing direction valve body (1) is formed by casting, the bottom tube shape bulge end face jaggy in valve body (1) outlet on circle and the corresponding exit orifice inwall carries out machining and forms.The rubber spring (2) of packing into earlier in the groove of the bottom tubulose convex surface jaggy on corresponding exit orifice inwall, the seal ring (3) of the teflon material of then packing into.Machining metal or nonmetal sealing seat (4), make its cylindrical and valve body (1) exit orifice reach the transition fit size, one end endoporus car of dress cutting ring (5) becomes the same transition fit size that reaches with cutting ring (5) excircle dimension, and at the end face of sealing seat (4) groove of getting on the bus out.Hard metal cutting ring (5) after the heat treatment process is packed in the sealing seat (4), the end face of sealing seat (4) is alignd with the end face of cutting ring (5), again the seal ring (3) of rubber spring (2) and teflon material is packed in the surface groove of sealing seat (4).Flashboard (6) is selected the manufacturing of high-quality steel for use and is heat-treated and plating hard chromium on surface, cutting ring (5) is housed in the hole of flashboard (6) bottom cooperates for transitional pore, and the bi-side of the both ends of the surface of cutting ring (5) and flashboard (6) are flat.It is parallel that flashboard (6) bi-side add the requirement in man-hour.Valve rod (7) is with the manufacturing of high-quality steel and heat-treats and the plating hard chromium on surface processing, with valve rod (7), after flashboard (6) is assembled together and connects together with the slurry valve elevator mechanism, again the upper mechanism of valve body (1) with slurry valve fused with screw.The sealing seat (4) that cutting ring (5) will be housed was at last squeezed in the portalling of valve body (1), as long as the end face and the seal ring (3) of sealing seat (4) contact with flashboard, and flashboard (6) lifting vertically light till.At this moment slurry valve manufacturing assembling is finished.

Claims (3)

1, a kind of slurry valve that common unlatching is arranged, close transmission of power and range controlling mechanism, the import and export that it is characterized in that valve body are that import is low, outlet is high, with a bottom jaggy tube shape bulge identical with sealing seat inside and outside circle diameter arranged on the corresponding valve interior wall of pipe-type outlet, be shaped on annular groove on the raised head face, the rubber spring of packing into earlier in the groove, after pack into the seal ring of teflon material, sealing seat is housed in the exit orifice, valve rod in the valve body, on connect under the elevator mechanism and connect flashboard, flashboard is that parallel bottom, bi-side is porose, studs with cutting ring in the hole.

2, according to the described slurry valve of claim (1), it is characterized in that the sealing seat of adorning in the exit orifice of described slurry valve is being shaped on groove near on the end face of flashboard, rubber spring is housed earlier in the groove, after the teflin ring of packing into, sealing seat near the cutting ring of inlaying in the hole of flashboard end with the cutting ring in the flashboard lower hole same in external diameter.

3, according to the described slurry valve of claim (1), it is characterized in that the valve rod of described slurry valve, flashboard be the high-quality steel after heat treatment is made, the surface is coated with hard chrome.

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