CN201494928U - Positive-negative pressure integral multi-functional pump conveying system device - Google Patents
Positive-negative pressure integral multi-functional pump conveying system device Download PDFInfo
- Publication number
- CN201494928U CN201494928U CN2009202308596U CN200920230859U CN201494928U CN 201494928 U CN201494928 U CN 201494928U CN 2009202308596 U CN2009202308596 U CN 2009202308596U CN 200920230859 U CN200920230859 U CN 200920230859U CN 201494928 U CN201494928 U CN 201494928U
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- Prior art keywords
- ash
- pump
- negative pressure
- functional
- malleation
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- 239000000428 dust Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 10
- 238000005243 fluidization Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000009428 plumbing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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- Air Transport Of Granular Materials (AREA)
Abstract
The utility model discloses a positive-negative pressure integral multi-functional pump conveying system device. The conveying system device comprises a multi-functional bin pump, a multi-functional bin pump negative-pressure ash feeding device and a multi-functional bin pump positive-pressure conveying device. In the conveying system device, a set of bin pump can be connected with a plurality of ash hoppers, an intermediate ash silo is not required, ash can be conveyed to the end ash silo at one time, a great amount of materials and equipment can be saved, and the output rate of the bin pump can be adjusted, therefore, the conveying system device is a pneumatic conveying system device in which a pipe is not easy to block.
Description
Technical field
The utility model relates to a kind of powder material air-transport system device, particularly big-and-middle-sized coal-fired power plant pneumatic ash removal system device, the agstone strength transport systems device of boiler flue gas desulfurization system.
Background technology
The ash of coal-fired power plant's boiler emission, slag are exploited as a kind of resource, therefore boiler smoke dust exhaustor dry ash generally adopts the pneumatic ash handling mode, along with the generator set single-machine capacity constantly increases, fed distance increases, existing pneumatic ash removal system is difficult to satisfy economic, practical, reliable, requirements of saving energy, mainly has following problem:
Objective factors such as 1, domestic coal-fired power plant's single-machine capacity increasing (as single-machine capacity 1000MW), boiler smoke dust collector ash hopper quantity increase, ash amount increases and fed distance is long adopt existing single pneumatic ash removal system to be difficult to meet the demands.As adopt the combined type pneumatic ash removal system, then system complex, construction investment is big, energy consumption is high.
2,, be formed on the down essential common rule that a cover pressure type load transfer device (as the storehouse pump) is installed of each bucket of boiler smoke dust exhaustor because all the storehouse pump class load transfer devices in the existing pneumatic ash removal system all are subjected to the restriction of storehouse pump feeding manner.Be that existing pneumatic ash removal system storehouse pump quantity is many, the major cause that transport efficiency is low.
3, all storehouse pump delivery modes all are to carry pressurized air to mix the back with dry ash in the pump of storehouse to be interrupted conveying, existence could be carried dry ash in the second cover storehouse pump after the first cover storehouse pump dry ash must being transported to grey storehouse, forming fed distance and carry grey gas than the common rule that is inversely proportional to, is to cause to carry the inefficient major cause of compressed air delivery dry ash.
4,, conveying ash many in boiler smoke dust collector ash hopper quantity measured under the engineering specifications big, that fed distance is long, generally all adopt the negative pressure pneumatic ash removal system to concentrate the interior dry ash of supplied flue gases dust collector ash hopper to middle grey storehouse, or adopt little storehouse pump malleation to concentrate the interior dry ash of supplied flue gases dust collector ash hopper to middle grey storehouse, grey storehouse adopts big storehouse pump the dry ash malleation to be transported to the two-stage pneumatic conveying mode in terminal ash storehouse from the centre again.
5, be difficult to control discharging speed owing to draw formula storehouse pump under existing, therefore cause the plugging fault easily.
The utility model content
It is a kind of economical and practical that the purpose of this utility model is to provide, and a cover storehouse pump connects a plurality of ash buckets, and grey storehouse in the middle of need not disposablely is transported to terminal ash storehouse with ash, and discharging speed that can the surge bunker pump, is difficult for the air-transport system device of plugging.
For achieving the above object, the utility model adopts following design plan, a kind of positive-negative integral multifunction pump conveying system device, comprise multi-functional storehouse pump, multi-functional storehouse pump negative pressure dress apparatus for ash, multi-functional storehouse pump malleation feedway, wherein multi-functional storehouse pump negative pressure dress apparatus for ash comprises the generation negative pressure device, Cang Bengding gas ash filtering installation, the negative pressure ash conveying pipe, the malleation making-up air device, at least comprise that ash bucket is connected with multi-functional storehouse pump by the negative pressure ash conveying pipe under two boiler smoke dust exhaustors, produce negative pressure device and link to each other with multi-functional storehouse pump by Cang Bengding gas ash filtering installation, the negative pressure ash conveying pipe is connected with the malleation making-up air device away from the end of multi-functional storehouse pump; Multi-functional storehouse pump delivery device comprises pressurized fluidized pipeline, pressure pipeline, the fluidisation pipeline, fluidizer, pneumatic bleeder valve, discharge pipe, the malleation ash conveying pipe, flow control device is formed, pressurized fluidized pipeline links to each other with Cang Bengding gas ash filtering installation by pressure pipeline, pressurized fluidized pipeline links to each other with fluidizer in the pump of storehouse by the fluidisation pipeline, the below that pneumatic bleeder valve is positioned at multi-functional storehouse pump links to each other with discharge pipe, discharge pipe links to each other with the malleation ash conveying pipe by malleation ash conveying pipe pan feeding point, on the malleation ash conveying pipe, the place ahead of pan feeding point is provided with flow control device, control is pumped material speed through the compressed air require size of pan feeding point with the control storehouse.
The storehouse pump transport systems device of described utility model, wherein multi-functional storehouse pump is connected with two negative pressure transportation devices, thereby makes the multi-functional storehouse of cover pump can connect more ash buckets.
Ash bucket under four boiler smoke dust exhaustors of the every best connection of negative pressure ash conveying pipe.
Described generation negative pressure device can be a kind of of the inferior blower fan air inlet side of Venturi tube, sieve, vacuum pump.
Described volume control device can be flow-through orifices.
Described malleation delivery duct adopts segmentation reducing technology, and its latter end ash pipeline footpath can be calculated as follows:
In the formula: Q
Vnh=Q
Vn+ Q
Vhm
3/ min
Q
Vnh---terminal gas ash mixture flow rate m
3/ min
Q
Vn---carry air supply m
3/ min
Q
Vh---carry ash amount m
3/ min
υ
f---pipeline end speed m/s
Described positive-negative integral multifunction pump conveying system device can dispose in pairs, is connected in same malleation ash conveying pipe jointly, to improve transport efficiency.
Above-mentioned transport systems device of the present utility model can overcome the existing deficiency of aforementioned present technology, and a kind of economical and practical ash disposal system device is provided, and makes a cover multi-functional storehouse pump can transport dust in a plurality of ash buckets, thereby saves a large amount of equipment and material.Multi-functional storehouse pump can be finished the negative pressure charging, can finish the task that malleation is carried again, makes integral structure simplify, and reliability strengthens.Simultaneously disposable dust is transported to final grey storehouse, has saved middle grey storehouse, also save a large amount of storehouse pump and valve.Because the malleation delivery duct is provided with flow control device, and the malleation delivery duct separates with the fluidisation pressure pipeline, is convenient to control ash discharge speed, improves transport efficiency, reduces the plugging probability.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described:
Fig. 1 is the structural representation of the positive negative pressure integrated multi-functional of the utility model storehouse pump transport systems.
Fig. 2 is the positive negative pressure integrated multi-functional of the utility model storehouse pump transport systems structural representation of configuration in pairs.
The specific embodiment
The structure of the utility model positive-negative integral multifunction pump conveying system device as shown in Figure 1, comprise multi-functional storehouse pump, multi-functional storehouse pump negative pressure dress apparatus for ash, multi-functional storehouse pump malleation feedway, wherein multi-functional storehouse pump negative pressure dress apparatus for ash comprises generation negative pressure device 4, Cang Bengding gas ash filtering installation 5, negative pressure ash conveying pipe 2, malleation making-up air device 14, at least comprise that ash bucket is connected with multi-functional storehouse pump 1 by negative pressure ash conveying pipe 2 under two boiler smoke dust exhaustors, produce negative pressure device 4 and link to each other with multi-functional storehouse pump 1 by Cang Bengding gas ash filtering installation 5, negative pressure ash conveying pipe 2 is connected with malleation making-up air device 14 away from the end of multi-functional storehouse pump; Multi-functional storehouse pump delivery device comprises pressurized fluidized pipeline 6, pressure pipeline 7, fluidisation pipeline 8, fluidizer 11, pneumatic bleeder valve 9, discharge pipe 10, malleation ash conveying pipe 3, flow control device 12 is formed, pressurized fluidized pipeline 6 links to each other with Cang Bengding gas ash filtering installation 5 by pressure pipeline 7, pressurized fluidized pipeline 6 links to each other with fluidizer 11 in the pump of storehouse by fluidisation pipeline 8, the below that pneumatic bleeder valve 9 is positioned at multi-functional storehouse pump 1 links to each other with discharge pipe 10, discharge pipe 10 links to each other with malleation ash conveying pipe 3 by malleation ash conveying pipe pan feeding point 13, on the malleation ash conveying pipe, the place ahead of pan feeding point 13 is provided with flow control device 12, and control is through the compressed air require size of pan feeding point.
Workflow of the present utility model is: open and carry compressed air system, when pressure reaches preset value, open the pneumatic air inlet valve of ash conveying pipe, carry pressurized air that ash conveying pipe was purged 3～5 minutes.
(1) multifunction pump negative pressure dress ash: open the pneumatic air inlet valve of storehouse pump air extractor, when negative pressure reaches preset value in the pump of storehouse, by storehouse pump pressure transmitter output signal, open pneumatic unloading valve under pneumatic inlet valve of storehouse pump and the smoke duster ash bucket, open negative pressure ash conveying pipe end malleation gulp valve, dry ash is sucked into down and draws in the pump of formula storehouse in the ash bucket, draws formula storehouse pump level-sensing device output signal instantly, and multifunction pump negative pressure dress ash finishes.
(2) the multifunction pump malleation is carried: draw formula storehouse pump supercharging blowback pneumatic valve under opening, draw formula storehouse pump fluidisation pneumatic valve under opening, carry this moment pressurized air by Cang Ding gas ash filtering installation to supercharging in the pump of storehouse, to the filter bag blowback, butterfly type nozzle carries out the fluidization processing to dry ash in the pump of storehouse simultaneously, when the pressure that draws formula storehouse pump instantly reaches preset value,, open the pneumatic bleeder valve of storehouse pump by storehouse pump pressure transmitter output signal.When the material time is pumped when reaching preset value in the storehouse, pump material time controller output signal by the storehouse, the multifunction pump malleation is carried and is finished.
Fig. 2 is the positive negative pressure integrated multi-functional of the utility model storehouse pump transport systems structural representation of configuration in pairs.Wherein A, B two pumps dispose in pairs, A pump negative pressure dress ash, and B pump malleation is carried, A, B two pump Alternating Transportation.
After dry ash has been transferred in A, B two pumps, carry pressurized air to continue ash conveying pipe was purged 5～10 minutes, remove surplus ash in the pipeline, close the conveying compressor, valve is in the state of quitting work in the delivery system.
The utility model delivery profile is: shown in Figure 3
Illustrate:
The pressurized fluidized time of O-A storehouse pump
The A-B bleeder valve is opened downstream pressure and is fallen the time after rise
B-C pumps in the storehouse material time
C-D storehouse pump purge time
Overbottom pressure is got rid of and the positive negative pressure of storehouse pump transfer time in the pump of D-O storehouse
O-E storehouse pump is evacuated down to the dynamic negative-pressure time
The E-F storehouse pump negative pressure dress ash time
F-O storehouse pump is waited for the malleation time of delivery
Claims (7)
1. the multi-functional storehouse of positive-negative integralization pump delivery system and device, it is characterized in that comprising multi-functional storehouse pump, multi-functional storehouse pump negative pressure dress apparatus for ash, multi-functional storehouse pump malleation feedway, wherein multi-functional storehouse pump negative pressure dress apparatus for ash comprises generation negative pressure device (4), Cang Bengding gas ash filtering installation (5), negative pressure ash conveying pipe (2), malleation making-up air device (14), at least comprise that ash bucket is connected with multi-functional storehouse pump (1) by negative pressure ash conveying pipe (2) under two boiler smoke dust exhaustors, produce negative pressure device (4) and link to each other with multi-functional storehouse pump (1) by Cang Bengding gas ash filtering installation (5), negative pressure ash conveying pipe (2) is connected with malleation making-up air device (14) away from the end of multi-functional storehouse pump; Multi-functional storehouse pump delivery device comprises pressurized fluidized pipeline (6), pressure pipeline (7), fluidisation pipeline (8), fluidizer (11), pneumatic bleeder valve (9), discharge pipe (10), malleation ash conveying pipe (3), flow control device (12) is formed, pressurized fluidized pipeline (6) links to each other with Cang Bengding gas ash filtering installation (5) by pressure pipeline (7), pressurized fluidized pipeline (6) links to each other with fluidizer (11) in the pump of storehouse by fluidisation pipeline (8), the below that pneumatic bleeder valve (9) is positioned at multi-functional storehouse pump (1) links to each other with discharge pipe (10), discharge pipe (10) links to each other with malleation ash conveying pipe (3) by malleation ash conveying pipe pan feeding point (13), on the malleation ash conveying pipe, the place ahead of pan feeding point (13) is provided with flow control device (12), and control is through the compressed air require size of pan feeding point.
2. the multi-functional storehouse of positive-negative integralization according to claim 1 pump delivery system and device is characterized in that: multi-functional storehouse pump is connected with two negative pressure ash conveying pipes.
3. the multi-functional storehouse of positive-negative integralization according to claim 1 and 2 pump delivery system and device is characterized in that: ash bucket under four boiler smoke dust exhaustors of a negative pressure transportation plumbing connection.
4. the multi-functional storehouse of positive-negative integralization according to claim 1 and 2 pump delivery system and device is characterized in that: described generation negative pressure device can be a kind of of the inferior blower fan air inlet side of Venturi tube, sieve, vacuum pump.
5. the multi-functional storehouse of positive-negative integralization according to claim 1 and 2 pump delivery system and device is characterized in that: described volume control device can be flow-through orifices.
6. the multi-functional storehouse of positive-negative integralization according to claim 1 and 2 pump delivery system and device is characterized in that: described malleation delivery duct adopts the segmentation reducing, and its latter end delivery duct, caliber can be calculated as follows:
Q in the formula
Vnh=Q
Vn+ Q
Vh, Q
VnhBe terminal gas ash mixture flow rate, Q
VnFor carrying air supply, Q
VhFor carrying ash amount, υ
fBe the pipeline end speed.
7. the multi-functional storehouse of positive-negative integralization according to claim 1 and 2 pump delivery system and device is characterized in that: described positive-negative integral multifunction pump conveying system device can dispose in pairs, is connected in same malleation ash conveying pipe jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202308596U CN201494928U (en) | 2009-09-08 | 2009-09-08 | Positive-negative pressure integral multi-functional pump conveying system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202308596U CN201494928U (en) | 2009-09-08 | 2009-09-08 | Positive-negative pressure integral multi-functional pump conveying system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201494928U true CN201494928U (en) | 2010-06-02 |
Family
ID=42438136
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202308596U Expired - Lifetime CN201494928U (en) | 2009-09-08 | 2009-09-08 | Positive-negative pressure integral multi-functional pump conveying system device |
Country Status (1)
| Country | Link |
|---|---|
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912703A (en) * | 2010-09-07 | 2010-12-15 | 株洲南车时代电气股份有限公司 | Device and method for collecting and filtering dust of numerical control miller |
| CN102009848B (en) * | 2009-09-08 | 2012-10-03 | 镇江市电站辅机厂 | Positive-negative integrated conveying system device of multifunctional pump |
| CN103332493A (en) * | 2013-06-28 | 2013-10-02 | 中冶南方工程技术有限公司 | Pneumatic conveying method for removing dust and crude ash in dry process of converter gas |
| CN103625927A (en) * | 2013-12-11 | 2014-03-12 | 中国科学院生态环境研究中心 | Powdered substance conveying system with activation function and conveying method |
| CN104555454A (en) * | 2013-10-20 | 2015-04-29 | 宁夏嘉翔自控技术有限公司 | Electric automatic control system of pneumatic conveying system for raw cement materials |
| CN105858222A (en) * | 2016-05-25 | 2016-08-17 | 镇江市电站辅机厂有限公司 | Positive pressure and negative pressure integrated pneumatic ash conveying system and method |
| CN106573741A (en) * | 2014-07-17 | 2017-04-19 | 申克加工英国有限公司 | Pneumatic conveying device |
| CN107226353A (en) * | 2016-03-25 | 2017-10-03 | 宝山钢铁股份有限公司 | It is a kind of from dredging material-transporting system and its from dredging method |
| CN109319504A (en) * | 2018-10-17 | 2019-02-12 | 辽宁清道夫环保工程有限公司 | Pneumatic transport equipment and pneumatic conveying method |
| CN109319503A (en) * | 2018-10-17 | 2019-02-12 | 辽宁清道夫环保工程有限公司 | Feed bin pump and pneumatic transport equipment |
| CN110550458A (en) * | 2019-10-09 | 2019-12-10 | 辽宁调兵山煤矸石发电有限责任公司 | Automatic control pneumatic ash conveying system |
| CN116513809A (en) * | 2023-03-16 | 2023-08-01 | 西安热工研究院有限公司 | Positive and negative pressure combined conveying system for pebble coal of medium-speed coal mill |
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2009
- 2009-09-08 CN CN2009202308596U patent/CN201494928U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009848B (en) * | 2009-09-08 | 2012-10-03 | 镇江市电站辅机厂 | Positive-negative integrated conveying system device of multifunctional pump |
| CN101912703B (en) * | 2010-09-07 | 2012-06-06 | 株洲南车时代电气股份有限公司 | Device and method for collecting and filtering dust of numerical control miller |
| CN101912703A (en) * | 2010-09-07 | 2010-12-15 | 株洲南车时代电气股份有限公司 | Device and method for collecting and filtering dust of numerical control miller |
| CN103332493A (en) * | 2013-06-28 | 2013-10-02 | 中冶南方工程技术有限公司 | Pneumatic conveying method for removing dust and crude ash in dry process of converter gas |
| CN103332493B (en) * | 2013-06-28 | 2015-07-01 | 中冶南方工程技术有限公司 | Pneumatic conveying method for removing dust and crude ash in dry process of converter gas |
| CN104555454A (en) * | 2013-10-20 | 2015-04-29 | 宁夏嘉翔自控技术有限公司 | Electric automatic control system of pneumatic conveying system for raw cement materials |
| CN103625927A (en) * | 2013-12-11 | 2014-03-12 | 中国科学院生态环境研究中心 | Powdered substance conveying system with activation function and conveying method |
| CN103625927B (en) * | 2013-12-11 | 2015-10-21 | 中国科学院生态环境研究中心 | A kind of delivery system and carrying method with the powder of mobilizing function |
| CN106573741A (en) * | 2014-07-17 | 2017-04-19 | 申克加工英国有限公司 | Pneumatic conveying device |
| CN106573741B (en) * | 2014-07-17 | 2019-10-25 | 申克加工英国有限公司 | Pneumatic conveying device |
| CN107226353B (en) * | 2016-03-25 | 2019-08-27 | 宝山钢铁股份有限公司 | A self-dragging material conveying system and its self-dragging method |
| CN107226353A (en) * | 2016-03-25 | 2017-10-03 | 宝山钢铁股份有限公司 | It is a kind of from dredging material-transporting system and its from dredging method |
| CN105858222A (en) * | 2016-05-25 | 2016-08-17 | 镇江市电站辅机厂有限公司 | Positive pressure and negative pressure integrated pneumatic ash conveying system and method |
| CN109319503A (en) * | 2018-10-17 | 2019-02-12 | 辽宁清道夫环保工程有限公司 | Feed bin pump and pneumatic transport equipment |
| CN109319504A (en) * | 2018-10-17 | 2019-02-12 | 辽宁清道夫环保工程有限公司 | Pneumatic transport equipment and pneumatic conveying method |
| CN110550458A (en) * | 2019-10-09 | 2019-12-10 | 辽宁调兵山煤矸石发电有限责任公司 | Automatic control pneumatic ash conveying system |
| CN116513809A (en) * | 2023-03-16 | 2023-08-01 | 西安热工研究院有限公司 | Positive and negative pressure combined conveying system for pebble coal of medium-speed coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100602 Effective date of abandoning: 20090908 |