CN102009851A - Conveying method for bottom discharge bin pump - Google Patents
Conveying method for bottom discharge bin pump Download PDFInfo
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- CN102009851A CN102009851A CN2009100348042A CN200910034804A CN102009851A CN 102009851 A CN102009851 A CN 102009851A CN 2009100348042 A CN2009100348042 A CN 2009100348042A CN 200910034804 A CN200910034804 A CN 200910034804A CN 102009851 A CN102009851 A CN 102009851A
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- ash
- pump
- storehouse
- pipeline
- dry ash
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Abstract
The invention discloses a conveying method for a bottom discharge bin pump, which comprises the following steps of: 1, enabling a compressed air to enter a pressurized and fluidized pipeline, and pressurizing a bin pump through the pressurized pipe; 2, enabling the compressed air to enter a fluidizing device in the bin pump through the fluidized pipeline for fluidizing dry ash in the bin pump; and 3, when the pressure in the bin pump reaches the preset value, opening a pneumatic discharge valve, enabling the dry ash to enter a positive pressure ash conveying pipeline through a feeding hole of an ash conveying pipeline, regulating a flow regulating device on the positive pressure ash conveying pipeline, and controlling the discharge speed of the dry ash until the dry ash is conveyed completely, thereby improving the ash discharge and conveying reliability of the bottom discharge bin pump, increasing the conveying efficiency, and lowering the conveying unit gas consumption and the unit energy consumption.
Description
Technical field
The present invention relates to draw formula storehouse pump pneumatic conveying method, the following formula storehouse pump delivery method of drawing in the agstone strength transport systems of particularly big-and-middle-sized coal-fired power plant pneumatic ash removal system device, boiler flue gas desulfurization system under a kind of.
Background technology
Usually adopt top-guiding type storehouse pump or the following load transfer device that draws two kinds of discharge methods of storehouse pump in the strength conveying engineering.Be difficult to control discharging speed owing to draw formula storehouse pump under existing, therefore plugging is easily seldom used in middle and long distance pneumatic ash handling engineering.
Drawing formula storehouse pump down is to rely under the combined action of storehouse pump internal pressure and delivery duct internal pressure differences and dry ash deadweight, and dry ash in the pump of storehouse is sent in the ash conveying pipe.Carrying pressurized air by dry ash in the pump delivery pipeline of storehouse, is a kind of interruption mode of movement, major advantage such as have therefore that the storehouse pumps that material speed is fast, nothing left ash in the pump of storehouse, transport efficiency height, storehouse pump body energy consumption are low, but also have following fatal shortcoming simultaneously.
1, existing drawing formula storehouse pump adopts the silicon carbide porous plate usually down, because the silicon carbide porous plate stops up easily, makes that dry ash can not get abundant fluidization in the pump of storehouse, reduces the dry ash flow property, and dry ash is bridging easily in the pump of storehouse, influences the storehouse and pumps ash.
2, when storehouse pump internal pressure is less than or equal to the ash conveying pipe internal pressure, carried the effect of pressurized air jacking, the storehouse pump is ash discharge not, when storehouse pump internal pressure during greater than the ash pipeline internal pressure, dry ash can be sent in the ash conveying pipe by speed in the pump of storehouse, make and carry pressurized air can't carry dry ash, cause ash conveying pipe to stop up.
3, draw the uncertain factors such as restriction that formula storehouse pump volume and ash conveying pipe caliber are difficult to reasonable disposition and are subjected to down to draw the horizontal ash conveying pipe arrangement length of formula storehouse pump discharge down, draw formula storehouse pump delivery reliability under reducing.
Summary of the invention
The object of the invention provides a kind ofly can control discharging speed, is not easy plugging, the carrying method that can carry continuously.
For achieving the above object, the present invention adopts following design plan, draws formula storehouse pump delivery method under a kind of, and it is characterized in that may further comprise the steps: 1. pressurized air enters pressurized fluidized pipeline, through pressure pipeline to storehouse pump supercharging; 2. pressurized air fluidizer in the fluidisation pipeline enters the storehouse pump carries out fluidization to dry ash in the pump of storehouse and handles; 3. when storehouse pump internal pressure reached preset value, pneumatic bleeder valve was opened, and dry ash enters the malleation ash conveying pipe through the ash conveying pipe feeding mouth, regulated the flow control device on the malleation ash conveying pipe, and the ash discharge speed of control dry ash finishes until the dry ash conveying.
Described flow control device is a flow-through orifice.
Be provided with pressure transformer in the pump of described multi-functional storehouse.
Advantage of the present invention is:
1, carry pressurized air in the pump of storehouse, not have loss of pressure.
Carried continuously in ash conveying pipe with after carrying pressurized air to be mixed into gas ash compound owing to draw the dry ash of formula storehouse pump output down, carry pressurized air, therefore do not exist and carry the loss of pressure of pressurized air in the pump of storehouse, reduced conveying energy consumption not by the storehouse pump.
2, improve transport efficiency, convey unit gas consumption and unit consumption of energy fall.
Owing to draw down formula storehouse pump delivery pressurized air, do not exist dry ash in the pump of storehouse to be transported to and to carry the second interruption mode of movement that overlaps dry ash in the pump of storehouse behind the grey storehouse by the storehouse pump; A plurality of pan feeding points can be arranged on an ash conveying pipe, adopt and alternately in ash conveying pipe, import dry ash, make ash conveying pipe be in continuous conveying dry ash state, improve and carry compressed air delivery dry ash efficient, reduction convey unit gas consumption and convey unit energy consumption, have obvious energy-saving effect.
3, drawing the formula storehouse under the raising pumps ash, carries reliability.
Draw the formula storehouse under conveying pressurized air current difference calculates before and after the employing ash conveying pipe pan feeding point and pump the material time, the control pan feeding, transportation concentration is to draw smooth ash discharge of formula storehouse pump and dry ash down can evenly mix the back by the important assurance of smooth delivery of power continuously with carrying pressurized air in ash conveying pipe, also is the effective technology measure that prevents that ash conveying pipe from stopping up.
Description of drawings
Fig. 1 is for drawing the schematic flow sheet of formula storehouse pump delivery method under the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the following formula storehouse pump delivery method of drawing that invention is provided is described in further detail:
Pressurized air enters pressurized fluidized pipeline 2, through 3 pairs of storehouse pump 11 superchargings of pressure pipeline; Pressurized air is fluidizer 5 in fluidisation pipeline 4 enters the storehouse pump, dry ash in the storehouse pump 11 is carried out fluidization handle; When storehouse pump internal pressure reached preset value, pneumatic bleeder valve 6 was opened, and dry ash enters malleation ash conveying pipe 1 through ash conveying pipe feeding mouth 8, regulates the flow control device 9 on the malleation ash conveying pipe 1, and the ash discharge speed of control dry ash finishes until the dry ash conveying.
Fluidizer is a butterfly type gasification installation in the pump of storehouse, is to draw the critical component of the smooth discharging of formula storehouse pump down.
Drawing formula storehouse pump down is under the difference of pressure and dry ash deadweight combined action that relies in storehouse pump internal pressure and the ash conveying pipe, and dry ash in the pump of storehouse is transported in the ash conveying pipe.Dry ash mixes the back at ash conveying pipe pan feeding point with the conveying pressurized air to be carried continuously, and therefore calculating ash conveying pipe pan feeding point front and back conveying pressurized air parameter is the key of technical solution problem.
Claims (3)
1. draw formula storehouse pump delivery method under one kind, it is characterized in that may further comprise the steps: 1. pressurized air enters pressurized fluidized pipeline, through pressure pipeline to storehouse pump supercharging; 2. pressurized air fluidizer in the fluidisation pipeline enters the storehouse pump carries out fluidization to dry ash in the pump of storehouse and handles; 3. when storehouse pump internal pressure reached preset value, pneumatic bleeder valve was opened, and dry ash enters the malleation ash conveying pipe through the ash conveying pipe feeding mouth, regulated the flow control device on the malleation ash conveying pipe, and the ash discharge speed of control dry ash finishes until the dry ash conveying.
2. draw formula storehouse pump delivery method under according to claim 1, it is characterized in that described flow control device is a flow-through orifice.
3. draw formula storehouse pump delivery method under according to claim 1, it is characterized in that being provided with pressure transformer in the pump of described multi-functional storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100348042A CN102009851A (en) | 2009-09-08 | 2009-09-08 | Conveying method for bottom discharge bin pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100348042A CN102009851A (en) | 2009-09-08 | 2009-09-08 | Conveying method for bottom discharge bin pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102009851A true CN102009851A (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100348042A Pending CN102009851A (en) | 2009-09-08 | 2009-09-08 | Conveying method for bottom discharge bin pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN102009851A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923486A (en) * | 2012-11-27 | 2013-02-13 | 东南大学 | Non-compressed transformation dry powder pump |
| CN103321675A (en) * | 2013-05-14 | 2013-09-25 | 中国矿业大学 | Method and equipment for pneumatically conveying and filling gangue in coal mine well |
| CN104495388A (en) * | 2014-11-03 | 2015-04-08 | 无锡泓成环境科技有限公司 | Pneumatic conveying method with three-level foreign body separation function |
| CN110217597A (en) * | 2019-05-23 | 2019-09-10 | 浙江固特气动科技股份有限公司 | A kind of fluidization lime stone handling system |
-
2009
- 2009-09-08 CN CN2009100348042A patent/CN102009851A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923486A (en) * | 2012-11-27 | 2013-02-13 | 东南大学 | Non-compressed transformation dry powder pump |
| CN103321675A (en) * | 2013-05-14 | 2013-09-25 | 中国矿业大学 | Method and equipment for pneumatically conveying and filling gangue in coal mine well |
| CN103321675B (en) * | 2013-05-14 | 2015-06-10 | 中国矿业大学 | Method and equipment for pneumatically conveying and filling gangue in coal mine well |
| CN104495388A (en) * | 2014-11-03 | 2015-04-08 | 无锡泓成环境科技有限公司 | Pneumatic conveying method with three-level foreign body separation function |
| CN104495388B (en) * | 2014-11-03 | 2018-11-06 | 嘉兴尚云自动化设备有限公司 | A kind of pneumatic conveying method being provided with the separation of three-level foreign matter |
| CN110217597A (en) * | 2019-05-23 | 2019-09-10 | 浙江固特气动科技股份有限公司 | A kind of fluidization lime stone handling system |
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Application publication date: 20110413 |