CN100570184C - Knife-shaped gate valve for slurry - Google Patents
Knife-shaped gate valve for slurry Download PDFInfo
- Publication number
- CN100570184C CN100570184C CNB2007101590932A CN200710159093A CN100570184C CN 100570184 C CN100570184 C CN 100570184C CN B2007101590932 A CNB2007101590932 A CN B2007101590932A CN 200710159093 A CN200710159093 A CN 200710159093A CN 100570184 C CN100570184 C CN 100570184C
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- Prior art keywords
- bearing
- safety cover
- valve
- leading screw
- knife
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- Expired - Fee Related
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Abstract
The present invention relates to a kind of knife-shaped gate valve for slurry, comprise handwheel, leading screw, Gland, valve plate, valve body, seal ring, bearing, location jackscrew, top at leading screw is provided with lubricating cup, and leading screw up and down is provided with oilhole with the matching part of bearing at set square triangle, and lubricating cup communicates with oilhole.The bearing outside is provided with the bearing safety cover, and upper bearing safety cover and handwheel are structure as a whole; In the Gland of valve plate upper end, scraper is installed; Valve body and Gland are integral casting formings; Seal ring is embedded in the groove on the valve body; The bottom of valve plate is a blade-like, and the knife-edge angle is 40 degree, stainless steel.Advantage is that reasonable in design, volume are little, the life-span is long.
Description
Technical field
The present invention relates to a kind of knife-shaped gate valve for slurry, be widely used in industries such as metallurgical mine, papermaking, cement, chemistry.
Background technique
At present, the valve body and the Gland that are used for the gate valve for slurry of industries such as metallurgical mine, papermaking, cement, chemistry adopt welded structure, and profile is not attractive in appearance, and working life is short.Bearing portion on leading screw top does not have oilhole and protective gear, and in the place that industrial and mining enterprise etc. work under hard conditions, dust enters easily, influences using effect and working life; The volume ratio of valve is bigger, installs and opens heaviness; In addition, in use,, thereby influenced working life of valve easily by different foreign material scratchings scratch.
Summary of the invention
The present invention has overcome deficiency of the prior art, has proposed the knife-shaped gate valve for slurry that a kind of reasonable in design, volume are little, the life-span is long.
For solving the problem that prior art exists, the present invention realizes by the following technical solutions:
Knife-shaped gate valve for slurry comprises handwheel, leading screw, Gland, valve plate, valve body, seal ring, bearing, location jackscrew, is provided with lubricating cup on the top of leading screw, and leading screw up and down is provided with oilhole with the matching part of bearing at set square triangle, and lubricating cup communicates with oilhole; The bearing outside is provided with the bearing safety cover, and the bearing safety cover comprises upper bearing safety cover and lower bearing safety cover, and upper bearing safety cover and handwheel are structure as a whole; In the Gland of valve plate upper end, scraper is installed.
The bearing outside is provided with the bearing safety cover, and upper bearing safety cover and handwheel are structure as a whole; In the Gland of valve plate upper end, scraper is installed; Valve body and Gland are integral casting formings; Seal ring is embedded in the groove on the valve body; The bottom of valve plate is a blade-like, and the knife-edge angle is 40 degree, stainless steel.
The top of location jackscrew is provided with the positioning hole of cone shape, is inlaid with the teflon locating point that contacts with valve plate in this positioning hole.
Compared with prior art, the invention has the beneficial effects as follows:
1, is provided with lubricating cup on the top of leading screw, is provided with oilhole, play the effect of lubricating bearings, can improve device working life with the matching part of bearing.
2, the bearing outside is provided with the bearing safety cover, can prevent when operating conditions is relatively poor that dust and foreign material from entering.
3, the material of scraper is that teflon, graphite and molybdenum are synthetic, can prevent that scratch materials such as dust, gravel from entering Gland, can significantly improve the working life of valve plate.
4, the top of location jackscrew is provided with the positioning hole of cone shape, and positioning hole is embedded with polytetrafluoroethylmaterial material, and locating point is embedded in the jackscrew positioning hole all the time, the contact valve plate, but proof strength can not abrade valve plate again, and good locating function is arranged.
5, valve body and Gland are the integral precision casting moulding, beautiful shape.
6, seal ring is inserted, rational in infrastructure, good sealing effect.
Description of drawings
Fig. 1 is the structural front view of knife-shaped gate valve for slurry;
Fig. 2 is the structure side view of knife-shaped gate valve for slurry.
Among the figure: 1, handwheel 2, set square triangle 3, column 4, leading screw 5, screw 6, Gland 7, seal ring 8, valve plate 9, valve body 10, scraper 11, location jackscrew 12, teflon locating point 13, side support plate 14, lower bearing safety cover 15, upper bearing safety cover 16, lubricating cup
Embodiment
See Fig. 1, Fig. 2, knife-shaped gate valve for slurry, constitute by handwheel 1, set square triangle 2, side support plate 13, column 3, leading screw 4, screw 5, Gland 6, seal ring 7, valve plate 8, valve body 9, scraper 10, location jackscrew 11, teflon locating point 12, handwheel 1 is arranged at the valve body top, handwheel 1 below is connected with leading screw 4, leading screw 4 is fixed between handwheel 1 and the valve body 9 by the fixed support that set square triangle 2, column 3 and side support plate 13 form, leading screw 4 bottoms are provided with screw 5, screw 5 adopts allumen to make, and cost is lower; Be provided with lubricating cup 16 on the top of leading screw, leading screw is provided with oilhole at the matching part of set square triangle 2 both sides and bearing, and lubricating cup communicates with oilhole, plays the effect of lubricating bearings.In order to prevent that dust or foreign material from entering bearing, the bearing outside that cooperates with leading screw up and down at tripod is provided with lower bearing safety cover 14 and upper bearing safety cover 15, upper bearing safety cover 15 and handwheel 1 one.
In valve plate 8 upper end Glands 6 scraper 10 is installed, the material of scraper 10 is that teflon, graphite and molybdenum are made, and can prevent that scratch materials such as dust, gravel from entering Gland, can significantly improve the working life of valve plate 8.Valve plate 8 is selected stainless steel for use, and fine-grinding and polishing is handled can obtain the optimal seal effect.
Be provided with top wire hole on valve body 9, jackscrew 11 passes top wire hole, plays the fixedly effect of valve plate 8.In order to make valve plate 8 work smooth and easy, both played the assurance constant intensity, can not make between jackscrew and the valve plate again to abrade, locate jackscrew 11 tops at location jackscrew 11 with the contact position of valve plate 8 and be provided with teflon locating point 12.Vary in size according to valve body, teflon locating point 12 can be provided with 3-5, and valve plate 8 is had well from centering.When valve is in closed condition, and when bearing back pressure, valve plate is not offset.
Be provided with seal ring 7 between valve body 9 and the valve plate 8, seal ring 7 is embedded in the slotted eye on the valve body 9, good sealing effect.
Blade-like is processed in the bottom of valve plate 8, and the knife-edge angle is 40 degree, stainless steel.Soft material such as fiber, paper pulp, wood pulp are had the cut-out function, good operation of opening/locking and closing function are arranged simultaneously.
Valve body 9 adopts integral precision castings, and material can select 304,316 for use according to user's needs, 316L, WCB, 2Cr13, and seal ring 7 adopts RTFE reinforced TFE materials, and is corrosion-resistant, wear-resistant, be not stained with slag.
Knife-shaped gate valve for slurry can dispose handwheel 1, open handle, manually slide fastener, gear transmission, pneumatic and electronic soon.
Knife-shaped gate valve for slurry inside can be made into V-type, trigonometric form, five jiaos of type passages, to adapt to fluid regulation control requirement.
The operating temperature of gate valve of the present invention:
Liquid-34 ℃-200 ℃
Siccative-40 ℃-250 ℃
Concentration of medium; ≤ 35%
Rockwell hardness :≤25
Nominal pressure: 1.0,1.6MPa.
Claims (2)
1, knife-shaped gate valve for slurry, comprise handwheel, leading screw, Gland, valve plate, valve body, seal ring, bearing, location jackscrew, it is characterized in that: the top at leading screw is provided with lubricating cup, and leading screw up and down is provided with oilhole with the matching part of bearing at set square triangle, and lubricating cup communicates with oilhole; The bearing outside is provided with the bearing safety cover, and the bearing safety cover comprises upper bearing safety cover and lower bearing safety cover, and upper bearing safety cover and handwheel are structure as a whole; In the Gland of valve plate upper end, scraper is installed.
2, knife-shaped gate valve for slurry according to claim 1 is characterized in that: the top of location jackscrew is provided with the positioning hole of cone shape, is inlaid with the teflon locating point that contacts with valve plate in this positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101590932A CN100570184C (en) | 2007-12-21 | 2007-12-21 | Knife-shaped gate valve for slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101590932A CN100570184C (en) | 2007-12-21 | 2007-12-21 | Knife-shaped gate valve for slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101201118A CN101201118A (en) | 2008-06-18 |
| CN100570184C true CN100570184C (en) | 2009-12-16 |
Family
ID=39516413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101590932A Expired - Fee Related CN100570184C (en) | 2007-12-21 | 2007-12-21 | Knife-shaped gate valve for slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100570184C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3332157B1 (en) * | 2015-08-06 | 2019-03-13 | VAT Holding AG | Valve, preferably vacuum valve |
| CN107725808A (en) * | 2017-10-13 | 2018-02-23 | 南通国电电站阀门股份有限公司 | The support column release blowdown hand sluice valve of nuclear power island heart level four |
| CN111594629A (en) * | 2020-06-23 | 2020-08-28 | 安徽铜都流体科技股份有限公司 | Double-cutter slurry gate valve for shield machine |
-
2007
- 2007-12-21 CN CNB2007101590932A patent/CN100570184C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101201118A (en) | 2008-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20161221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |