CN203568486U - Pneumatic conveying device - Google Patents
Pneumatic conveying device Download PDFInfo
- Publication number
- CN203568486U CN203568486U CN201320701937.2U CN201320701937U CN203568486U CN 203568486 U CN203568486 U CN 203568486U CN 201320701937 U CN201320701937 U CN 201320701937U CN 203568486 U CN203568486 U CN 203568486U
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- Prior art keywords
- valve
- communicated
- pump
- air valve
- bin
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims abstract description 9
- 238000005243 fluidization Methods 0.000 claims description 33
- 238000007599 discharging Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 abstract description 15
- 238000005303 weighing Methods 0.000 abstract 5
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000012716 precipitator Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 31
- 239000000203 mixture Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Air Transport Of Granular Materials (AREA)
Abstract
The utility model discloses a pneumatic conveying device comprising a middle dust storage bin, a bin pump, a terminal stock bin, a level indicator, a weighing device and a control system. The feed end of the bin pump is communicated with the middle dust storage bin through a feed valve; the discharge end of the bin pump is communicated with the terminal stock bin through a discharge valve; the air inlet end of the bin pump is communicated with a compressed air source through a conveying air valve and a fluidifying air valve; the air outlet end of the bin pump is communicated with the middle dust storage bin through a vent valve; the bin pump is further provided with the weighing device and the level indicator; the weighing device is used for weighing the bin pump; the level indicator is used for reading the size of materials inside the bin pump; the feed valve, the discharge valve, the conveying air valve, the fluidifying air valve, the vent valve, the level indicator and the weighing device are electrically connected with the control system. The pneumatic conveying device solves the problems that when precipitator dust of different bulk densities is conveyed, pipes are easily blocked, the gas consumption is large, the abrasion is large, and output force is decreased.
Description
Technical field
The utility model relates to granular material conveying technology field, refers in particular to a kind of Pneumatic conveyer.
Background technology
In blast furnace ironmaking production process, when the vibrating grizzly of Feed system, feeder weigh and transportation device transports, in each operation point or handling points can produce a large amount of harmful dusts, for reducing the harm of dust to site operation personnel and the pollution to environment, blast furnace ore tank adopts bag dust collector to concentrate improvement to dust conventionally, and bag dust collector is collected the dedusting ash of getting off, owing to itself being exactly the dust that various mineral aggregates produce because of fragmentation when transporting, therefore can be used as after raw materials for sintering reenters sintered material system batching and carry out sintering.
In prior art, blast furnace ore tank dedusting ash is carried the mode of carrying afterwards of first concentrating that conventionally adopts, below the outlet of bag dust collector ash bucket, slat conveyer is installed, ash-storing bin in the middle of dedusting ash in bag dust collector ash bucket is delivered to by slat conveyer, then at middle ash-storing bin, divide into a set of Pneumatic conveyer, blast furnace ore tank dedusting ash is delivered to sintered material system by closed conduit.
Because blast furnace ore tank dedusting ash contains sintering deposit dedusting ash, coke dedusting ash and batching dedusting ash, the bulk density difference of three kinds of dedusting ash, during operation, when dusty gas is inhaled into after bag dust collector by dust sucting pipeline, along with dusty gas flow velocity reduces, the first sedimentation of dedusting ash that bulk density is large, therefore, the bulk density of the first bag of a bag dust collector ash is the heaviest, and along flue gas direction, the density of dedusting ash reduces gradually, after tested, the bulk density of the first bag of a bag dust collector ash reaches 1.8t/m
3, the bulk density of an end bag ash only has 1.1t/m
3.While moving due to slat conveyer, after normally the ash in an ash bucket having been carried, carry again the ash in next ash bucket, therefore, along middle ash-storing bin short transverse, the bulk density of ash changes, the ash that different time is sent into middle ash-storing bin cannot fully mix, when adopting Pneumatic conveyer to carry, owing to cannot predicting grey bulk density, the just accurate grey gas ratio of control system, cause when carrying large grey of bulk density, easily produce plugging, and while carrying little grey of bulk density, can cause again time of delivery long, air consumption, excessive and the system of the wearing and tearing lower degradation problem of exerting oneself.
Utility model content
The purpose of this utility model is to provide a kind of Pneumatic conveyer, easily produces plugging, air consumption is large, wearing and tearing are large and the problem declining of exerting oneself while carrying the dedusting ash of different stacking densities to solve.
For reaching above-mentioned purpose, solution of the present utility model is:
A kind of Pneumatic conveyer, ash-storing bin, storehouse pump, terminal feed bin, level-sensing device, weighting apparatus and control system in the middle of comprising; Storehouse pump feed end is communicated with middle ash-storing bin by inlet valve, and discharge end is communicated with terminal feed bin by bleeder valve; Storehouse pump inlet end is respectively by carrying air valve and fluidisation air valve to be communicated with compressed air gas source, and exhaust side is communicated with middle ash-storing bin by blow off valve; Weighting apparatus for measuring storehouse pump weight is also installed and for reading the level-sensing device of volume of material in the pump of storehouse on the pump of storehouse; Inlet valve, bleeder valve, conveying air valve, fluidisation air valve, blow off valve, material level are taken into account weighting apparatus and are electrically connected with control system respectively.
Further, storehouse pump draws formula storehouse pump in being, has the gas port of being delivered into, fluidisation admission port, inlet point, discharging opening, exhausr port, the support of storehouse pump and level gauging mouth; Be delivered into gas port by carrying air valve to be communicated with compressed air gas source; Fluidisation admission port is communicated with compressed air gas source by fluidisation air valve; Inlet point is communicated with middle ash-storing bin by inlet valve; Discharging opening is communicated with terminal feed bin by bleeder valve; Exhausr port is communicated with middle ash-storing bin by blow off valve; Storehouse pump supports the upper weighting apparatus of installing; On level gauging mouth, level-sensing device is installed.
Further, be delivered into gas port and discharging opening is in the same center line.
Further, carrying air valve and fluidisation air valve is the adjustable air valve of valve opening.
Further, carrying air valve and fluidisation air valve is pneumatic or electric flow control valve.
Further, weighting apparatus is LOAD CELLS.
Adopt after such scheme, when the utility model is used, open the blow off valve of storehouse pump, ash-storing bin in the middle of the weary gas in the pump of storehouse is entered; Open the inlet valve of storehouse pump, ore deposit groove dedusting ash enters storehouse pump from middle ash-storing bin; When the level-sensing device of installing is reported to the police, close inlet valve and blow off valve on the pump of storehouse; Weighting apparatus weighs the weight of the dedusting ash that fill in storehouse pump, corresponding storehouse pump volume when weigh is reported to the police divided by stock position, storehouse, and calculating is delivered from godown, and pump is interior packs grey bulk density into; According in the pump of storehouse pack grey bulk density into, according to predefined program, regulate size and the ratio of carrying air valve and fluidisation air valve; Open fluidisation air valve, the dedusting ash in fluidization air and storehouse pump is fully mixed, also make the ash of different stacking densities in the pump of storehouse mix simultaneously; When storehouse, pump internal pressure reaches setting value, opens and carries air valve and bleeder valve, ore deposit groove dedusting ash is sent into delivery duct, and then send into terminal feed bin; After ash in storehouse pump and pipeline is emptying, closes and carry air valve and fluidisation air valve and bleeder valve, complete a delivery cycle.Therefore, the utility model compared with prior art, has the following advantages:
One, because the level-sensing device by the pump of storehouse and weighting apparatus calculate the bulk density of ore deposit groove dedusting ash in the pump that delivers from godown, thereby according to the bulk density of ore deposit groove dedusting ash, regulate size and the ratio of conveying gas and fluidized gas.When carrying large grey of bulk density, increase the tolerance of conveying gas, reduce the tolerance of fluidized gas, reduce the grey gas ratio while carrying, while preventing from carrying, produce plugging; When carrying little grey of bulk density, reduce the tolerance of conveying gas, increase the tolerance of fluidized gas, improve the grey gas ratio while carrying, shorten the time of carrying, save the gas consumption while carrying, improve the wearing and tearing that delivery system is exerted oneself and reduced system.
Two, owing to first opening fluidisation air valve when carrying, the material in the pump of storehouse is carried out to fluidisation, guaranteed the abundant mixing of fluidized gas and dedusting ash, also make the dedusting ash of different stacking densities in the pump of storehouse fully mix, guaranteed safe, the stable and efficiently operation of blast furnace ore tank dedusting ash Pneumatic conveyer simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Label declaration
Middle ash-storing bin 1 storehouse pump 2
Be delivered into gas port 21 fluidisation admission ports 22
Inlet point 23 discharging openings 24
Exhausr port 25 storehouse pumps support 26
Level gauging mouth 27
Terminal feed bin 3 level-sensing devices 4
Weighting apparatus 5 inlet valves 6
Bleeder valve 7 is carried air valve 8
Fluidisation air valve 9 blows off valve 10.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Consult shown in Fig. 1 a kind of Pneumatic conveyer that the utility model discloses, ash-storing bin 1, storehouse pump 2, terminal feed bin 3, level-sensing device 4, weighting apparatus 5 and control system (not shown) in the middle of comprising.
Pump 2 feed ends in storehouse are communicated with middle ash-storing bin 1 by inlet valve 6, and discharge end is communicated with terminal feed bin 3 by bleeder valve 7.Pump 2 inlet ends in storehouse are respectively by carrying air valve 8 and fluidisation air valve 9 to be communicated with compressed air gas source, and exhaust side is communicated with middle ash-storing bin 1 by blow off valve 10.Weighting apparatus 5 for measuring storehouse pump 2 weight is also installed on storehouse pump 2 and for reading the level-sensing device 4 of storehouse pump 2 interior volume of material, weighting apparatus 5 can be LOAD CELLS.The parts such as inlet valve 6, bleeder valve 7, conveying air valve 8, fluidisation air valve 9, blow off valve 10, level-sensing device 4 and weighting apparatus 5 are electrically connected with control system respectively.
In the present embodiment, storehouse pump 2 draws formula storehouse pump in being, has the gas port of being delivered into 21, fluidisation admission port 22, inlet point 23, discharging opening 24, exhausr port 25, the support 26 of storehouse pump and level gauging mouth 27.
Be delivered into gas port 21 by carrying air valve 8 to be communicated with compressed air gas source; Fluidisation admission port 22 is communicated with compressed air gas source by fluidisation air valve 9; Inlet point 23 is communicated with middle ash-storing bin 1 by inlet valve 6; Discharging opening 24 is communicated with terminal feed bin 3 by bleeder valve 7; Exhausr port 25 is communicated with middle ash-storing bin 1 by blow off valve 10; Storehouse pump supports on 26 weighting apparatus 5 is installed; Level-sensing device 4 is installed on level gauging mouth 27.Wherein, being delivered into gas port 21 is in the same center line with discharging opening 24.Carrying air valve 8 and fluidisation air valve 9 is the adjustable air valve of valve opening, can be pneumatic or electric flow control valve.
When the utility model is used, open the blow off valve 10 on storehouse pump 2, ash-storing bin 1 in the middle of the weary gas in storehouse pump 2 is entered; Open the inlet valve 6 on storehouse pump 2, ore deposit groove dedusting ash enters in storehouse pump 2 from middle ash-storing bin 1; When the level-sensing device 4 of installing on storehouse pump 2 is reported to the police, close inlet valve 6 and blow off valve 10, conventionally, when described level-sensing device 4 is reported to the police, pump 2 chargings in storehouse are 80% of storehouse pump 2 volumes; Weighting apparatus 5 weighs the weight of storehouse pump 2 interior filled dedusting ash, and corresponding volume when weigh is reported to the police divided by storehouse pump 2 level-sensing devices 4 calculates the bulk density of pump 2 interior packed into dedusting ash of delivering from godown; According to the bulk density of storehouse pump 2 interior packed into ash disposal, according to predefined program, regulate size and the ratio of carrying air valve 8 and fluidisation air valve 9; Open fluidisation air valve 9, the dedusting ash in fluidization air and storehouse pump 2 is fully mixed, also make the ash of storehouse pump 2 interior different stacking densities mix simultaneously; When pump 2 internal pressures in storehouse reach setting value, open and carry air valve 9 and bleeder valve 7, ore deposit groove dedusting ash is sent into delivery duct, and then send into terminal feed bin 3; Dedusting ash in storehouse pump 2 and delivery duct is sent after sky, closes and carries air valve 8, fluidisation air valve 9 and bleeder valve 7, completes a delivery cycle.
The utility model is read the volume of the ore deposit groove dedusting ash in storehouse pump 2 by level-sensing device 4, and by weighting apparatus 5, weigh the weight of the interior ore deposit of the pump 2 groove dedusting ash that delivers from godown, the deliver from godown bulk density of the interior ore deposit of pump 2 groove dedusting ash of calculating, according to calculated bulk density, adjust size and the ratio of conveying gas and fluidized gas, simultaneously when carrying beginning, open fluidized gas the ore deposit groove dedusting ash in storehouse pump 2 is carried out to sufficient fluidisation, the ore deposit groove dedusting ash that makes to pack in storehouse pump 2 mixes, thereby can guarantee the safety of blast furnace ore tank dedusting ash Pneumatic conveyer, stablize and efficiently operation, reduce wearing and tearing, energy efficient.
Claims (6)
1. a Pneumatic conveyer, is characterized in that: ash-storing bin, storehouse pump, terminal feed bin, level-sensing device, weighting apparatus and control system in the middle of comprising; Storehouse pump feed end is communicated with middle ash-storing bin by inlet valve, and discharge end is communicated with terminal feed bin by bleeder valve; Storehouse pump inlet end is respectively by carrying air valve and fluidisation air valve to be communicated with compressed air gas source, and exhaust side is communicated with middle ash-storing bin by blow off valve; Weighting apparatus for measuring storehouse pump weight is also installed and for reading the level-sensing device of volume of material in the pump of storehouse on the pump of storehouse; Inlet valve, bleeder valve, conveying air valve, fluidisation air valve, blow off valve, material level are taken into account weighting apparatus and are electrically connected with control system respectively.
2. a kind of Pneumatic conveyer as claimed in claim 1, is characterized in that: storehouse pump draws formula storehouse pump in being, has the gas port of being delivered into, fluidisation admission port, inlet point, discharging opening, exhausr port, the support of storehouse pump and level gauging mouth; Be delivered into gas port by carrying air valve to be communicated with compressed air gas source; Fluidisation admission port is communicated with compressed air gas source by fluidisation air valve; Inlet point is communicated with middle ash-storing bin by inlet valve; Discharging opening is communicated with terminal feed bin by bleeder valve; Exhausr port is communicated with middle ash-storing bin by blow off valve; Storehouse pump supports the upper weighting apparatus of installing; On level gauging mouth, level-sensing device is installed.
3. a kind of Pneumatic conveyer as claimed in claim 2, is characterized in that: be delivered into gas port and discharging opening is in the same center line.
4. a kind of Pneumatic conveyer as claimed in claim 1, is characterized in that: carrying air valve and fluidisation air valve is the adjustable air valve of valve opening.
5. a kind of Pneumatic conveyer as claimed in claim 1, is characterized in that: carrying air valve and fluidisation air valve is pneumatic or electric flow control valve.
6. a kind of Pneumatic conveyer as claimed in claim 1, is characterized in that: weighting apparatus is LOAD CELLS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701937.2U CN203568486U (en) | 2013-11-08 | 2013-11-08 | Pneumatic conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701937.2U CN203568486U (en) | 2013-11-08 | 2013-11-08 | Pneumatic conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203568486U true CN203568486U (en) | 2014-04-30 |
Family
ID=50536230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701937.2U Expired - Fee Related CN203568486U (en) | 2013-11-08 | 2013-11-08 | Pneumatic conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203568486U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110015A (en) * | 2015-09-09 | 2015-12-02 | 上海隆麦机械设备工程有限公司 | Pneumatic force slag removal conveying system |
| CN106182433A (en) * | 2016-08-30 | 2016-12-07 | 苏州工机械有限公司 | Additive-adding device, mixing system and operational method thereof |
| CN107119162A (en) * | 2017-05-25 | 2017-09-01 | 邢台钢铁有限责任公司 | A kind of blast-furnace gas dry dedusting ash conveying device and method |
| CN108693072A (en) * | 2017-04-12 | 2018-10-23 | 山东钢铁股份有限公司 | Material kind discrimination method and device |
| CN108840106A (en) * | 2018-05-04 | 2018-11-20 | 太原理工大学 | A kind of visualization long range concentrated phase positive pneumatic transport experimental rig |
| CN109733887A (en) * | 2018-12-31 | 2019-05-10 | 广州科里时机械工程有限公司 | A kind of anti-bias analysis air-transport system of mixed powder |
| CN110228710A (en) * | 2019-06-19 | 2019-09-13 | 武汉钢铁有限公司 | The efficient transportation system of dedusting ash and anti-clogging control method |
| CN114737014A (en) * | 2022-03-21 | 2022-07-12 | 福建龙净环保股份有限公司 | Converter fly ash conveying equipment and method |
-
2013
- 2013-11-08 CN CN201320701937.2U patent/CN203568486U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110015A (en) * | 2015-09-09 | 2015-12-02 | 上海隆麦机械设备工程有限公司 | Pneumatic force slag removal conveying system |
| CN106182433A (en) * | 2016-08-30 | 2016-12-07 | 苏州工机械有限公司 | Additive-adding device, mixing system and operational method thereof |
| CN108693072A (en) * | 2017-04-12 | 2018-10-23 | 山东钢铁股份有限公司 | Material kind discrimination method and device |
| CN108693072B (en) * | 2017-04-12 | 2024-02-20 | 山东钢铁股份有限公司 | Material type identification method and device |
| CN107119162A (en) * | 2017-05-25 | 2017-09-01 | 邢台钢铁有限责任公司 | A kind of blast-furnace gas dry dedusting ash conveying device and method |
| CN108840106A (en) * | 2018-05-04 | 2018-11-20 | 太原理工大学 | A kind of visualization long range concentrated phase positive pneumatic transport experimental rig |
| CN109733887A (en) * | 2018-12-31 | 2019-05-10 | 广州科里时机械工程有限公司 | A kind of anti-bias analysis air-transport system of mixed powder |
| CN110228710A (en) * | 2019-06-19 | 2019-09-13 | 武汉钢铁有限公司 | The efficient transportation system of dedusting ash and anti-clogging control method |
| CN114737014A (en) * | 2022-03-21 | 2022-07-12 | 福建龙净环保股份有限公司 | Converter fly ash conveying equipment and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140430 |