CN101769390A - Sweeping type pebble coal dumping device - Google Patents
Sweeping type pebble coal dumping device Download PDFInfo
- Publication number
- CN101769390A CN101769390A CN200810243292A CN200810243292A CN101769390A CN 101769390 A CN101769390 A CN 101769390A CN 200810243292 A CN200810243292 A CN 200810243292A CN 200810243292 A CN200810243292 A CN 200810243292A CN 101769390 A CN101769390 A CN 101769390A
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- CN
- China
- Prior art keywords
- valve body
- gate plate
- valve
- pebble coal
- gas bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to fire coal treating equipment for production in a thermal power plant, in particular to a sweeping type pebble coal dumping device for treating pebble coal in fire coal. The sweeping type pebble coal dumping device comprises a valve body and a gate plate, wherein the valve body is installed between a pebble coal hopper and a conveying mechanism; the gate plate is matched with the valve body and can close or open a valve body channel; the gate plate is driven by a motor or a hydraulic cylinder or other actuating mechanisms; a grooved rail which is matched with the gate plate is arranged on the inner wall of the valve body; a gas bag is arranged at the outer side of the valve body; the gas outlet of the gas bag is open to the grooved rail through a pore path on the valve body; and the gas inlet of the gas bag is connected with a gas source through an electromagnetic pulse valve. In the invention, because a pulse sweeping device is arranged on the traditional gate plate valve, in the closing process of the gate plate, the pulse flow can be used for sweeping and clearing dust and material slag in the grooved rail of the valve body, thereby ensuring that the gate plate can be closed in place and improving the closing reliability.
Description
Technical field
The present invention relates to the coal-fired processing equipment of use in the production of a kind of thermal power plant, specifically is a kind of sweeping type pebble coal dumping device that stone coal in the fire coal is handled.
Background technique
Power plant handles in the journey at fire coal, can produce a large amount of stone coals during medium-speed pulverizer work, these stone coals that are stored in the hopper need periodically to be discharged into conveying equipment by discharge mechanism, existing discharge mechanism generally includes a gate valve that is made of valve body and flashboard, by the open and close controlling discharge process of gate valve.In its working procedure, the grooved rail that cooperates with flashboard in the body cavity is not closed completely flashboard in often having dust and expecting that slag remains in, and has influenced the normal operation of coal pulverizer, also causes the leakage pollution of dust.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure, can clean valve cavity automatically, valve seals reliable sweeping type pebble coal dumping device.
Sweeping type pebble coal dumping device of the present invention includes a flashboard of closing or open valve channel that is installed in the valve body between stone coal hopper and the conveying equipment and cooperates with valve body, flashboard is driven by actuators such as motor or oil hydraulic cylinders, valve interior wall is provided with the grooved rail that cooperates with flashboard, it is characterized in that: a gas bag is arranged in the valve body arranged outside, the air outlet of gas bag is led in the above-mentioned grooved rail through the duct on the valve body, and the suction port of gas bag is connected with source of the gas by an electromagnetic impulse valve.Rounded or the rectangle of the intracavity section of described valve body, corresponding flashboard shape also adapts with it.
The present invention is owing to be provided with the pulse blowing cleaner on traditional gate valve, thereby can flashboard close utilize on the closed procedure pulsing airflow to the dust in the valve body grooved rail and the material slag purge cleaning, having guaranteed that flashboard can cut out puts in place, has improved the reliability of sealing.
Description of drawings
Fig. 1 is a mounting point of the present invention schematic representation;
Fig. 2 is a sectional structure schematic representation of the present invention;
Fig. 3 is the plan structure schematic representation of Fig. 2;
Fig. 4 is the local structure for amplifying schematic representation of Fig. 2.
Embodiment
As shown in the figure, this sweeping type pebble coal dumping device includes the flashboard of closing or open valve channel 4 that is installed in the valve body 3 between stone coal hopper 1 and the conveying equipment 2 and cooperates with valve body, flashboard is driven by actuators such as motor or oil hydraulic cylinder 9, valve interior wall is provided with the grooved rail 5 that cooperates with flashboard, it is characterized in that: a gas bag 6 is arranged in the valve body arranged outside, the air outlet of gas bag is led in the above-mentioned grooved rail 5 through the duct on the valve body, and the suction port of gas bag is connected with external air source by an electromagnetic impulse valve 8.
Claims (2)
1. sweeping type pebble coal dumping device, include a flashboard (4) that is installed in the valve body (3) between stone coal hopper and the conveying equipment and cooperates with valve body, valve interior wall is provided with the grooved rail (5) that cooperates with flashboard, it is characterized in that: a gas bag (6) is arranged in the valve body arranged outside, the air outlet of gas bag is led in the above-mentioned grooved rail (5) through the duct on the valve body, and the suction port of gas bag is connected with source of the gas by an electromagnetic impulse valve (8).
2. sweeping type pebble coal dumping device according to claim 1 is characterized in that: the rounded or rectangle of intracavity section of described valve body (3), the shape of flashboard (4) also adapts with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810243292A CN101769390A (en) | 2008-12-31 | 2008-12-31 | Sweeping type pebble coal dumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810243292A CN101769390A (en) | 2008-12-31 | 2008-12-31 | Sweeping type pebble coal dumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101769390A true CN101769390A (en) | 2010-07-07 |
Family
ID=42502430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810243292A Pending CN101769390A (en) | 2008-12-31 | 2008-12-31 | Sweeping type pebble coal dumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101769390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984276A (en) * | 2010-10-22 | 2011-03-09 | 兰州奇正粉体装备技术有限公司 | Pneumatic gate valve |
-
2008
- 2008-12-31 CN CN200810243292A patent/CN101769390A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984276A (en) * | 2010-10-22 | 2011-03-09 | 兰州奇正粉体装备技术有限公司 | Pneumatic gate valve |
| CN101984276B (en) * | 2010-10-22 | 2012-06-20 | 兰州奇正粉体装备技术有限公司 | Pneumatic gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100707 |