CN105110014B - A kind of powdery monoammonium phosphate carrying method with cooling - Google Patents
A kind of powdery monoammonium phosphate carrying method with cooling Download PDFInfo
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- CN105110014B CN105110014B CN201510427286.6A CN201510427286A CN105110014B CN 105110014 B CN105110014 B CN 105110014B CN 201510427286 A CN201510427286 A CN 201510427286A CN 105110014 B CN105110014 B CN 105110014B
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Abstract
A kind of powdery monoammonium phosphate carrying method with cooling, 50 DEG C~60 DEG C ammoniums of powdery phosphorus one that MAP atomizing drying tower is overflowed equably are added to the import of cooler through electronic star-like feeder；Control gas velocity is cooled down under conditions of 20~25m/s, and finished product bin is transported material to by wind-force.Gas sends into air inducing fan inlet after bagroom, it is pressurized after enter aiutage, fuel gas and dust content is up to emptying after national standard；Powder is measured after being cooled to temperature less than 40 DEG C, packaging and storage.
Description
Technical field
A kind of air-flow the present invention relates to industrial production powdery monoammonium phosphate cools down carrying method, is particularly suitable for powdered acid
One ammonium long-distance sand transport, place complexity, structures, barrier are compared with multi-environment in being applicable conveying way.It is main apply to chemical fertilizer production,
Manufacture field.
Background technology
The traditional technology path of industrial production powdery monoammonium phosphate generally has two kinds：One kind is not cool down, directly with conveying
Mechanical (rubber conveyer, conveying worm, bucket elevator) is transported to the storage of MAP finished product hopper；Another kind is from spray
After the powder material that mist drying tower overflows is through air blast boiling cooling tower cooler, with conveying machinery (rubber conveyer, helical feed
Machine, bucket elevator) it is transported to the storage metering of MAP finished product hopper；Powder flies during this two kinds of technologies have transportation
Raise to form dust, operating environment operating mode is poor.Enter feed bin when powder material is not cooled down, easily cause powdery monoammonium phosphate temperature it is high,
Caking；Discharged during package metro-measuring uneven, high temperature burns out the generation of the accidents such as packaging bag, the material without cooling enters packaging bag envelope
Afterwards, powder MAP surface is returned to because the water vapour that natural cooling process is produced becomes water, forms surface lumps, influence is produced
Product using effect.
Therefore, seek one kind and be suitable to powdery monoammonium phosphate long distance delivery, solve place complexity in conveying way, structures,
Barrier is more, and course of conveying flies upward without powder, forms works fine environment, solves high, caking of powdery monoammonium phosphate temperature etc. and asks
Topic, realizes big industrial production, and dustlessization conveying, cooling powdery monoammonium phosphate technology have makees highly important meaning.
The content of the invention
The purpose of the present invention is precisely in order to overcoming the defect of above-mentioned prior art presence and providing a kind of powdery with cooling
MAP carrying method.
The purpose of the present invention is achieved by the following technical solution.
A kind of powdery monoammonium phosphate carrying method with cooling：The invention is characterised in that, technological process includes：MAP
Cooling of the charging of the powder material → MAP powder material in pipeline, the trapping of conveying → MAP powder material with
Store → dry the regeneration of the emptying → cloth bag of tail gas；Wherein, processing step is：
1) charging of MAP powder material：From 50 DEG C~60 DEG C powder that MAP atomizing drying tower is boiling over
Shape MAP, using electronic star-like feeder, 400~500g/Nm of powder addition3Air, is homogeneously added into cooler
Charging aperture；The controllable system fertilizer ratio of regulation shutter.
2) cooling of MAP powder material, conveying：The cooler coiling welded pipe fabrication and installation of Q235, gas velocity control in delivery pipe
In 20~25m/s, fed distance is 500~2000 meters to system；Material cooled flow in course of conveying, between fully realizing powder gas
Heat transfer；Temperature is less than 40 DEG C when powdery monoammonium phosphate material is sent to destination；
3) collection of dust and the storage of powder：MAP powder after cooling enters finished product material in the lump with air
Storehouse, gas pressurizes under the air inducing fan action being arranged at after sack cleaner and is emptied by aiutage；Powdery monoammonium phosphate then from
Kept in by falling into finished product bin, dispatched from the factory after metering, packaging；Finished product bin, aiutage use carbon steel Q235 fabrication and installation, cigarette
Cylinder gas velocity control is in 12~15m/s；Bagroom uses Low-Pressure Pulse Bag Filter, and cloth bag is ￠ 130 × 4500, cloth bag
Material selection laminated needled felt PTFE, filtration velocity 1.10m/min；After Bag filter, dustiness is less than 500mg/m3；
4) regeneration of cloth bag：Using pulse periodic oscillations purge mode, screw-rod air compressor one is set, produce 0.6-
The pressure air of 0.8MPA is stored in pulse gas bag, is often melted 5 minutes and is discharged enough air to cloth bag formation by solenoid valve control
Extruding, vibration is produced, powder is dropped in being regenerated, filter bag in finished product bin；(laminated needled felt PTFE has preferably thoroughly
Gas and the filterability to dust, regeneration effect are good.)
Step 1 of the present invention) in 50 DEG C~60 DEG C powdery monoammonium phosphates enter cooler, with suction cold air mixed flow cool down
With conveying, powder additional proportion is 400~500g/Nm3；Gas velocity control is in 20~25m/s in cooler；Cooler uses Q235
Fabrication and installation, 500~2000 meters of fed distance；Gather dust using laminated needled felt PTFE pulse dust collectors.Control gas flow temperature is low
In 40 DEG C, air velocity ＜ 1.10m/min are filtered, gas dust content is less than 500mg/m after filtering3。
The present invention configures an air-introduced machine in the destination end of MAP powder material conveying, there is provided be enough to carry phosphoric acid
One ammonium powder conveys air in pipeline closed, in negative pressure, overcomes the resistance of conveyance conduit and pulse dust collector.It is dry from phosphorus ammonium
60 DEG C~50 DEG C ammoniums of powdery phosphorus one that dry tower is boiling over, using an electronic star-like discharger, are homogeneously added into powder conveying pipe
Charging aperture；Gas velocity control is cooled down by air-flow and conveyed in 20~25m/s in delivery pipe, and powdery monoammonium phosphate material is sent to mesh
Ground when temperature be less than 40 DEG C, powdery monoammonium phosphate cooling be transported to Low-Pressure Pulse Bag Filter, after Bag filter, powder
Body is fallen in aggregate bin.With ＜ 1.10m/min speed after Bag filter, dustiness is less than 500mg/m to air3Into air inducing
Machine, is entered in the air by aiutage.The compressed air of 0.6-0.8MPA is often melted 5 using impulse method periodic oscillations purge mode
Minute carries out periodic oscillations, powder is dropped in finished product bin, and filter bag is regenerated.Its process unit hardware is as shown in Figure 1,
Including atomizing drying tower, star-like feeder, shutter, air-flow cooler, thermometer, finished product bin, low pressure pulse dust remover,
Pulse gas bag, impulse electromagnetic valve, leaving air temp meter, gas tank, screw-rod air compressor, operating platform and cat ladder, air inducing blower fan, row
Inflator is constituted.
Instant invention is especially suited for the long distance delivery of powdery monoammonium phosphate, place complexity, structures, barrier in conveying way are solved
Hinder the problem that thing is more, significantly improve the sanitary condition and working environment of device context, realize economy, clean environment firendly
Production.Advantages of the present invention：
1. be particularly suitable for powdery monoammonium phosphate long distance delivery, be applicable conveying way in place complexity, structures, barrier compared with
Multi-environment
2. powder flies upward in preventing course of conveying, improves working environment, realizes economy, clean environment firendly production.
3. lower the temperature in course of conveying rapid, effectively prevent that powdery monoammonium phosphate temperature is high, caking.
Brief description of the drawings
Fig. 1 is industrial production powdery monoammonium phosphate air-flow of the present invention cooling conveying process flow diagram.
Specific embodiment
See Fig. 1, a kind of powdery monoammonium phosphate carrying method with cooling：The invention is characterised in that, technological process includes：Phosphorus
Cooling of the charging → MAP powder material of a sour ammonium powder material in pipeline, conveying → MAP powder material
Trap and store → dry the regeneration of the emptying → cloth bag of tail gas；Wherein, processing step is：
1】The charging of MAP powder material：50 DEG C~60 DEG C be boiling over from MAP atomizing drying tower 1
Powdery monoammonium phosphate, using electronic star-like feeder 2,400~500g/Nm of powder addition3Air, is homogeneously added into cooling
The charging aperture of device 4；
2】The cooling of MAP powder material, conveying：The coiling welded pipe fabrication and installation of Q235 of cooler 4, gas velocity in delivery pipe
In 20~25m/s, fed distance is 500~2000 meters for control；Material cooled flow in course of conveying, between fully realizing powder gas
Heat transfer；Temperature is less than 40 DEG C when powdery monoammonium phosphate material is sent to destination；
3】The collection of dust and the storage of powder：MAP powder after cooling enters finished product bin in the lump with air
6, gas pressurizes in the case where the air inducing blower fan 14 being arranged at after sack cleaner 7 is acted on and is emptied by aiutage 15；Powdery monoammonium phosphate
Then freely fall into finished product bin and keep in, dispatched from the factory after metering, packaging；Finished product bin, aiutage make peace with carbon steel Q235
Dress, chimney gas velocity is controlled in 12~15m/s；Bagroom uses Low-Pressure Pulse Bag Filter, cloth bag be ￠ 130 ×
4500, cloth bag material selection laminated needled felt PTFE, filtration velocity 1.10m/min；After Bag filter, dustiness is less than
500mg/m3；
4】The regeneration of cloth bag：Using pulse periodic oscillations purge mode, screw-rod air compressor 12 1 is set, is produced
The pressure air of 0.6-0.8MPA is stored in pulse gas bag 8, is often melted 5 minutes and is discharged enough air to cloth by solenoid valve control
Bag formation extruding, generation vibration, make powder drop in finished product bin 6, are regenerated filter bag；Laminated needled felt PTFE have compared with
Good gas permeability and the filterability to dust, regeneration effect are good.
Step 1 of the present invention】In 50 DEG C~60 DEG C powdery monoammonium phosphates enter cooler, with suction cold air mixed flow cool down
With conveying, powder additional proportion is 400~500g/Nm3；Gas velocity control is in 20~25m/s in interior gas velocity cooler；Cooler is adopted
Use Q235 fabrication and installation, 500~2000 meters of fed distance；Gather dust using laminated needled felt PTFE pulse dust collectors.Control air-flow
Temperature is less than 40 DEG C, filters air velocity ＜ 1.10m/min, and gas dust content is less than 500mg/m after filtering3。
Embodiment：Yunnan Red enrichment fertilizer Co., Ltd 100kt/a MAP Plants, the powdery phosphorus cooled down using air-flow
Sour ammonium conveying process unit hardware configuration：
1】The charging of MAP powder material：50 DEG C~60 DEG C be boiling over from MAP atomizing drying tower 1
Powdery monoammonium phosphate, using the electronic star-like feeders 2 of XD300,400~500g/Nm of powder addition3Air, equably adds
Enter the charging aperture of cooler 4；
2】The cooling of MAP powder material, conveying：Cooler 4 uses DNThe coiling welded pipe fabrication and installation of 700, material Q235, it is defeated
, in 20~25m/s, fed distance is 800 meters to send gas velocity control in pipe；Material cooled flow in course of conveying, fully realizes powder
Heat transfer between gas；Temperature is less than 40 DEG C when powdery monoammonium phosphate material is sent to destination；
3】The collection of dust and the storage of powder：MAP powder after cooling enters 4000 one-tenth of ￠ in the lump with air
Product feed bin 6, air inducing blower fan 35000m of the gas after sack cleaner 7 is arranged at3Under/h, 5kPa centrifugal type draught fan 14 is acted on
Pressurization is emptied by aiutage 15；Powdery monoammonium phosphate then freely falls into finished product bin and keeps in, and is dispatched from the factory after metering, packaging；Into
Product feed bin, aiutage use carbon steel Q235 fabrication and installation, and chimney gas velocity is controlled in 12~15m/s；Bagroom uses low pressure
Pulse bag type dust collector, filter area is 380m2, cloth bag be ￠ 130 × 4500, cloth bag material selection laminated needled felt PTFE,
Filtration velocity 1.10m/min；After Bag filter, dustiness is less than 500mg/m3；
After being implemented by this mode, product reduction caking situation occurs, course of conveying dust content is low, good work environment,
Cooling the time before packaging is improved, is worked well.
Claims (2)
1. it is a kind of with cooling powdery monoammonium phosphate carrying method, it is characterised in that technological process includes：MAP powder thing
Cooling of the charging of the material → MAP powder material in pipeline, the trapping of conveying → MAP powder material and storage →
Dry the regeneration of the emptying → cloth bag of tail gas；Wherein, processing step is：
1) charging of MAP powder material：From 50 DEG C~60 DEG C powder that MAP atomizing drying tower (1) is boiling over
Shape MAP, using electronic star-like feeder (2), 400~500g/Nm of powder addition3Air, is homogeneously added into cooling
The charging aperture of device (4)；
2) cooling of MAP powder material, conveying：Cooler (4) the coiling welded pipe fabrication and installation of Q235, gas velocity control in delivery pipe
In 20~25m/s, fed distance is 500~2000 meters to system；Material cooled flow in course of conveying, between fully realizing powder gas
Heat transfer；Temperature is less than 40 DEG C when powdery monoammonium phosphate material is sent to destination；
3) collection of dust and the storage of powder：MAP powder after cooling enters finished product bin (6) in the lump with air,
Gas pressurization under air inducing blower fan (14) effect being arranged at after sack cleaner (7) is emptied by aiutage (15)；Powdered acid
One ammonium then freely falls into finished product bin and keeps in, and is dispatched from the factory after metering, packaging；Finished product bin, aiutage use carbon steel Q235 systems
Install, chimney gas velocity is controlled in 12~15m/s；Bagroom uses Low-Pressure Pulse Bag Filter, cloth bag be ￠ 130 ×
4500, cloth bag material selection laminated needled felt PTFE, filtration velocity 1.10m/min；After Bag filter, dustiness is less than
500mg/m3；
4) regeneration of cloth bag：Using pulse periodic oscillations purge mode, screw-rod air compressor (12) is set, produce 0.6-
The pressure air of 0.8MPA is stored in pulse gas bag (8), is often melted 5 minutes and is discharged enough air to cloth pouch-shaped by solenoid valve control
Into extruding, vibration is produced, powder is dropped in finished product bin (6), be regenerated filter bag；Laminated needled felt PTFE has preferably
Gas permeability and the filterability to dust, regeneration effect is good；
2. it is according to claim 1 it is a kind of with cooling powdery monoammonium phosphate carrying method, it is characterised in that step (1)
In 50 DEG C~60 DEG C powdery monoammonium phosphates enter cooler, with suction cold air mixed flow cooling with conveying, powder additional proportion
It is 400~500g/Nm3；Gas velocity control is in 20~25m/s in cooler；Cooler uses Q235 fabrication and installation, fed distance
500~2000 meters；Gather dust using laminated needled felt PTFE pulse dust collectors.Control gas flow temperature is less than 40 DEG C, crosses air filtering speed
Degree ＜ 1.10m/min, gas dust content is less than 500mg/m after filtering3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427286.6A CN105110014B (en) | 2015-07-20 | 2015-07-20 | A kind of powdery monoammonium phosphate carrying method with cooling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427286.6A CN105110014B (en) | 2015-07-20 | 2015-07-20 | A kind of powdery monoammonium phosphate carrying method with cooling |
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| CN105110014A CN105110014A (en) | 2015-12-02 |
| CN105110014B true CN105110014B (en) | 2017-06-06 |
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| CN201510427286.6A Expired - Fee Related CN105110014B (en) | 2015-07-20 | 2015-07-20 | A kind of powdery monoammonium phosphate carrying method with cooling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106429450B (en) * | 2016-11-28 | 2018-10-30 | 咸阳非金属矿研究设计院有限公司 | A kind of bentonite granular material conveying and packaging system |
| CN111747389A (en) * | 2020-07-16 | 2020-10-09 | 宜昌东圣磷复肥有限责任公司 | Monoammonium phosphate powder spraying production system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6253720A (en) * | 1985-09-03 | 1987-03-09 | Nippon Kokan Kk <Nkk> | Bag filter |
| CN1810612A (en) * | 2005-01-26 | 2006-08-02 | 兰爱克谢斯德国有限责任公司 | Method and device for dosing and pneumatic conveyance of low flowability bulk material |
| CN101400589A (en) * | 2006-03-14 | 2009-04-01 | 巴斯夫欧洲公司 | Method for the pneumatic conveying of water-absorbent polymer particles |
| CN202191795U (en) * | 2011-08-23 | 2012-04-18 | 江苏常净环保科技有限公司 | Bag type dust collector and fan combination unit |
| CN103657280A (en) * | 2012-09-19 | 2014-03-26 | 江苏省旭日冶金环保设备有限公司 | Multi-functional pulse bag type dust collector |
| CN103754647A (en) * | 2012-06-04 | 2014-04-30 | 魏宇 | Batch mixing feeding technology |
-
2015
- 2015-07-20 CN CN201510427286.6A patent/CN105110014B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6253720A (en) * | 1985-09-03 | 1987-03-09 | Nippon Kokan Kk <Nkk> | Bag filter |
| CN1810612A (en) * | 2005-01-26 | 2006-08-02 | 兰爱克谢斯德国有限责任公司 | Method and device for dosing and pneumatic conveyance of low flowability bulk material |
| CN101400589A (en) * | 2006-03-14 | 2009-04-01 | 巴斯夫欧洲公司 | Method for the pneumatic conveying of water-absorbent polymer particles |
| CN202191795U (en) * | 2011-08-23 | 2012-04-18 | 江苏常净环保科技有限公司 | Bag type dust collector and fan combination unit |
| CN103754647A (en) * | 2012-06-04 | 2014-04-30 | 魏宇 | Batch mixing feeding technology |
| CN103657280A (en) * | 2012-09-19 | 2014-03-26 | 江苏省旭日冶金环保设备有限公司 | Multi-functional pulse bag type dust collector |
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Granted publication date: 20170606 Termination date: 20180720 |