CN103706134A - Spray drying equipment for circulating fluidized bed - Google Patents
Spray drying equipment for circulating fluidized bed Download PDFInfo
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- CN103706134A CN103706134A CN201310748183.0A CN201310748183A CN103706134A CN 103706134 A CN103706134 A CN 103706134A CN 201310748183 A CN201310748183 A CN 201310748183A CN 103706134 A CN103706134 A CN 103706134A
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- Prior art keywords
- housing
- air inlet
- valve
- inlet pipe
- cloth bag
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- 238000001694 spray drying Methods 0.000 title claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 36
- 230000003134 recirculating effect Effects 0.000 claims description 27
- 230000000740 bleeding effect Effects 0.000 claims description 19
- 238000007664 blowing Methods 0.000 claims description 17
- 238000011010 flushing procedure Methods 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 17
- 238000005243 fluidization Methods 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 7
- 239000006071 cream Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention discloses spray drying equipment for a circulating fluidized bed. According to the spray drying equipment for the circulating fluidized bed, a circulating channel is formed by a fan (1), a circulating pipeline I (2), a dust collector (4), a regulating valve (5), a three-way air inlet joint (6) and a circulating pipeline II (7). An atomizer is arranged in the circulating pipeline II (7). Under the action of the fan (1), air flow enters the circulating channel through an air inlet valve (9) and circularly flows at high speed, a liquid-state material is atomized through the atomizer, enters the circulating channel, goes into a fluidization state under the action of the high-speed air flow, and flows at high speed in the circulating channel, heat exchange and water exchange are quickly performed between the material and the air flow, and wet air is discharged along with air flow separated from the dust collector, so that the liquid-state material can be dried.
Description
Technical field
The present invention relates to a kind of spray drying device.
Background technology
Spraying is dry is a kind ofly with atomizer, liquid or cream pasty material to be dispersed into the very thin particulate as mist, contacts with hot-air, in moment, most of moisture is removed, and makes the solid matter in material be able to dry drying means.Existing spray drying device generally has the huge drying tower of size, has complex structure, the not high weak point of the thermal efficiency.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple in structure, the recirculating fluidized bed spray drying device that the thermal efficiency is high.
Technical scheme of the present invention is: a kind of recirculating fluidized bed spray drying device, comprise blower fan, circulation line I, deduster, control valve, air inlet threeway, circulation line II, said modules is communicated with into circulation canal by the order of fan outlet, circulation line I, deduster air inlet pipe, remover ash discharge dust pipe, control valve, air inlet threeway, circulation line II, blower fan import; In circulation line I, there is discharge gate, blow-off valve is installed on discharge gate; It is air inlet that air inlet threeway also has a port, and intake valve is installed on air inlet; In circulation line II, atomizer is installed.Circulation canal is to form fluidisation state dry place after material is atomized into particulate, deduster is used for from the separated wet gas current of fluidisation state material, control valve is by regulating the internal pressure of deduster to regulate the velocity of discharge of moisture, and blow-off valve is for discharge, and intake valve is for air inlet.
Recirculating fluidized bed spray drying device of the present invention is work like this: close blow-off valve, open intake valve, start blower fan, the effect downstream of blower fan by intake valve, enter continuously drying equipment and in circulation canal high-speed circulating flow, portion gas is separated through deduster exhaust outlet and is discharged by deduster; Start atomizer reinforced, the material that is dispersed into particulate under the effect of high velocity air, form fluidisation state and in circulating line high-speed circulating flow, the height of materials of fluidisation state is dispersed in air-flow, and between air-flow, carry out rapidly heat and exchange of moisture, moisture in material is vaporized, and the air-flow of separating with deduster is discharged; After dry materials is good, open blow-off valve, material is along with air-flow is discharged through blow-off valve.
Blower fan is the power source of drying equipment, and in order to improve power, blower fan can be a plurality of, and a plurality of fans in series are on the circulation canal between circulation line II and deduster.
In order to improve the moisture velocity of discharge, deduster can be a plurality of, and a plurality of duster parallels are on the circulation canal between fan outlet and control valve.
In order to increase heating load, heater can be installed in circulation canal.
Deduster preferred pulse sack cleaner, pulse bag type dust collector in embodiment comprises housing, air inlet pipe, ash releasing tube, cloth bag and back-blowing device, housing is tube structure, housing one end is provided with air inlet pipe, and the other end is provided with ash releasing tube, and one end of air inlet pipe is outside housing, the other end stretches in housing, one end of ash releasing tube is outside housing, and the other end stretches in housing, is also provided with exhaust outlet on housing, cloth bag is arranged in housing, and cloth bag one end is contained in air inlet pipe with hoop sleeve, and the other end is contained on ash releasing tube with hoop sleeve, back-blowing device is deposited in for removing the material that affects cloth bag gas permeability on cloth bag under airflow function, back-blowing device has two kinds of embodiments, the first scheme of back-blowing device is by impulse electromagnetic valve, deflector and air bleeding valve form, impulse electromagnetic valve is arranged on housing, its outlet is communicated with enclosure interior, import is connected with compressed air source, deflector is arranged on the interior place over against pulse electromagnetic valve outlet port of housing, being used for blocking compressed air makes it can not directly blow to cloth bag, in order to avoid high-speed compressed air is damaged cloth bag, air bleeding valve is arranged on exhaust outlet, in the time of exhaust valve closure, impulse electromagnetic valve is opened, in housing, pass into compressed air cloth bag is carried out to blowback, the first scheme of back-blowing device is comprised of back-flushing valve, blowback threeway and air bleeding valve, port and the exhaust outlet of blowback threeway join, another port and air bleeding valve join, also have a port and back-flushing valve to join, the other end and the compressed air source of back-flushing valve join, in the time of exhaust valve closure, back-flushing valve is opened, and passes into high pressure draught cloth bag is carried out to blowback in housing.
In order to accelerate discharge velocity, also can be between discharge gate and deduster and near the position of the discharge gate auxiliary discharge device of connecting, auxiliary discharge device comprises successively connected circulation stop valve and auxiliary discharge threeway, it is auxiliary discharge air inlet that auxiliary discharge threeway also has a port, and auxiliary discharge intake valve is installed on auxiliary discharge air inlet; During discharge, close circulation stop valve, open blow-off valve and auxiliary discharge intake valve, gas enters from auxiliary discharge air inlet, the material in circulation canal is delivered to discharge gate fast and through blow-off valve, discharge.
Recirculating fluidized bed spray drying device of the present invention is applicable to be easy to be atomized into the cream pasty material of particulate or being dried of liquid material.
Recirculating fluidized bed spray drying device of the present invention adopts blower fan, circulation line I, deduster, control valve, air inlet threeway, circulation line II to form circulation canal, material high-speed circulating in circulation canal that atomizer is atomized into particulate flows, and between air-flow, carry out rapidly heat and exchange of moisture, the air-flow of separating with deduster after moisture in material is vaporized is discharged, realize spraying dry, convection heat transfer' heat-transfer by convection mass transfer velocity is fast, moisture vaporization rate is fast, saved the drying tower of existing spray drying device, device structure is simple, and the thermal efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structure chart of recirculating fluidized bed spray drying device the first embodiment of the present invention.
Fig. 2 is the cutaway view of deduster in Fig. 1.
Fig. 3 is along the cutaway view of A-A line in Fig. 1.
Fig. 4 is the structure chart of recirculating fluidized bed spray drying device the second embodiment of the present invention.
Fig. 5 is the cutaway view of deduster in Fig. 4.
In figure, each Reference numeral is: 1, blower fan; 2, circulation line I; 3, blow-off valve; 4, deduster; 5, control valve; 6, air inlet threeway; 7, circulation line II; 9, intake valve; 18, auxiliary discharge threeway; 19, circulation stop valve; 20, auxiliary discharge intake valve; 21, deduster; 22, pipeline A; 23, deduster; 24, pipeline B; 25, deduster; 26, pipeline C; 27, blower fan; 28, pipeline D; 29, deduster; 40, air inlet pipe; 41, housing; 42, impulse electromagnetic valve; 43, deflector; 45, air bleeding valve; 46, exhaust outlet; 47, cloth bag; 49, ash releasing tube; 50, blowback threeway; 51, back-flushing valve; 61, atomizer.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described, but embodiment is not construed as limiting the invention.
The first embodiment: a kind of recirculating fluidized bed spray drying device.
Referring to Fig. 1, Fig. 2 and Fig. 3, this recirculating fluidized bed spray drying device comprises blower fan 1, circulation line I 2, deduster 4, control valve 5, air inlet threeway 6, circulation line II 7, said modules is communicated with into circulation canal by the order of blower fan 1 outlet, circulation line I 2, deduster 4 air inlet pipe 40, deduster 4 ash releasing tubes 49, control valve 5, air inlet threeway 6, circulation line II 7, blower fan 1 import, in circulation line I, there is discharge gate, blow-off valve 3 is installed on discharge gate; It is air inlet that air inlet threeway 6 also has a port, and intake valve 9 is installed on air inlet; Atomizer 61 is installed in circulation line II 7.
The deduster 4 of this recirculating fluidized bed spray drying device is pulse bag type dust collector, pulse bag type dust collector comprises housing 41, air inlet pipe 40, ash releasing tube 49, cloth bag 47 and back-blowing device, housing 41 is tube structures, housing 41 one end are provided with air inlet pipe 40, and the other end is provided with ash releasing tube 49, and one end of air inlet pipe 40 is outside housing 41, the other end stretches in housing 41, one end of ash releasing tube 49 is outside housing 41, and the other end stretches in housing 41, is also provided with exhaust outlet 46 on housing 41; Cloth bag 47 is arranged in housing 41, and cloth bag 47 one end are contained in air inlet pipe 40 with hoop sleeve, and the other end is contained on ash releasing tube 49 with hoop sleeve; Back-blowing device is comprised of back-flushing valve 51, blowback threeway 50 and air bleeding valve 45, port and the exhaust outlet 46 of blowback threeway 50 join, another port and air bleeding valve 45 join, also have a port and back-flushing valve 51 to join, the other end and the compressed air source of back-flushing valve 51 join, when air bleeding valve 45 is closed, back-flushing valve 51 is opened, and passes into high pressure draught cloth bag 47 is carried out to blowback in housing 41.
The second embodiment: another kind of recirculating fluidized bed spray drying device.
Referring to Fig. 4 and Fig. 5, this recirculating fluidized bed spray drying device comprises blower fan 1, deduster 29, circulation line I 2, deduster 21, pipeline A22, deduster 23, pipeline B24, deduster 25, pipeline C26, deduster 4, control valve 5, air inlet threeway 6, circulation line II 7, blower fan 27, pipeline D28, said modules is pressed blower fan 1 outlet, deduster 29 air inlet pipe 40, deduster 29 ash releasing tubes 49, circulation line I 2, deduster 21 air inlet pipe 40, deduster 21 ash releasing tubes 49, pipeline A22, deduster 23 air inlet pipe 40, deduster 23 ash releasing tubes 49, pipeline B24, deduster 25 air inlet pipe 40, deduster 25 ash releasing tubes 49, pipeline C26, deduster 4 air inlet pipe 40, deduster 4 ash releasing tubes 49, control valve 5, air inlet threeway 6, circulation line II 7, blower fan 27 imports, blower fan 27 outlets, pipeline D28, the order of blower fan 1 import is communicated with into circulation canal, in circulation line I 2, there is discharge gate, blow-off valve 3 is installed on discharge gate, in circulation line II 7, atomizer is installed, it is air inlet that air inlet threeway 6 also has a port, and intake valve 9 is installed on air inlet, this recirculating fluidized bed spray drying device is associated with auxiliary discharge device between discharge gate and deduster 21 and near the location strings of discharge gate, auxiliary discharge device comprises successively connected circulation stop valve 19 and auxiliary discharge threeway 18, it is auxiliary discharge air inlet that auxiliary discharge threeway 18 also has a port, and auxiliary discharge intake valve 20 is installed on auxiliary discharge air inlet.
This recirculating fluidized bed spray drying device adopts two Fans serial connections as drying equipment power source, and fluidisation state Matter Transfer speed is high, and moisture vaporization rate is fast; With five dedusters, carry out separated moisture, the moisture velocity of discharge is fast, and drying equipment output is high; Increased auxiliary discharge device, discharge velocity is also very fast.
Claims (10)
1. recirculating fluidized bed spray drying device, it is characterized in that: described recirculating fluidized bed spray drying device comprises blower fan, circulation line I, deduster, control valve, air inlet threeway, circulation line II, said modules is communicated with into circulation canal by the order of fan outlet, circulation line I, deduster air inlet pipe, remover ash discharge dust pipe, control valve, air inlet threeway, circulation line II, blower fan import; In circulation line I, there is discharge gate, blow-off valve is installed on discharge gate; It is air inlet that air inlet threeway also has a port, and intake valve is installed on air inlet; In circulation line II, atomizer is installed.
2. recirculating fluidized bed spray drying device claimed in claim 1, is characterized in that: described blower fan is a plurality of, and a plurality of fans in series are on the circulation canal between circulation line II and deduster.
3. the recirculating fluidized bed spray drying device described in claim 1 or 2, is characterized in that: described deduster is a plurality of, and a plurality of duster parallels are on the circulation canal between fan outlet and control valve.
4. the recirculating fluidized bed spray drying device described in claim 1 or 2, is characterized in that: described deduster is pulse bag type dust collector.
5. recirculating fluidized bed spray drying device claimed in claim 3, is characterized in that: described deduster is pulse bag type dust collector.
6. recirculating fluidized bed spray drying device claimed in claim 4, is characterized in that: described pulse bag type dust collector comprises housing, air inlet pipe, ash releasing tube, cloth bag and back-blowing device; Housing is tube structure, and housing one end is provided with air inlet pipe, and the other end is provided with ash releasing tube, and one end of air inlet pipe is outside housing, and the other end stretches in housing, and one end of ash releasing tube is outside housing, and the other end stretches in housing, is also provided with exhaust outlet on housing; Cloth bag is arranged in housing, and cloth bag one end is contained in air inlet pipe with hoop sleeve, and the other end is contained on ash releasing tube with hoop sleeve; Back-blowing device is comprised of impulse electromagnetic valve, deflector and air bleeding valve, impulse electromagnetic valve is arranged on housing, its outlet is communicated with enclosure interior, import is connected with compressed air source, deflector is arranged on the interior place over against pulse electromagnetic valve outlet port of housing, be used for blocking compressed air and make it can not directly blow to cloth bag, in order to avoid high-speed compressed air is damaged cloth bag, air bleeding valve is arranged on exhaust outlet.
7. recirculating fluidized bed spray drying device claimed in claim 4, is characterized in that: described pulse bag type dust collector comprises housing, air inlet pipe, ash releasing tube, cloth bag and back-blowing device; Housing is tube structure, and housing one end is provided with air inlet pipe, and the other end is provided with ash releasing tube, and one end of air inlet pipe is outside housing, and the other end stretches in housing, and one end of ash releasing tube is outside housing, and the other end stretches in housing, is also provided with exhaust outlet on housing; Cloth bag is arranged in housing, and cloth bag one end is contained in air inlet pipe with hoop sleeve, and the other end is contained on ash releasing tube with hoop sleeve; Back-blowing device is comprised of back-flushing valve, blowback threeway and air bleeding valve, and port and the exhaust outlet of blowback threeway join, and another port and air bleeding valve join, and also has a port and back-flushing valve to join, and the other end and the compressed air source of back-flushing valve join.
8. recirculating fluidized bed spray drying device claimed in claim 5, is characterized in that: described pulse bag type dust collector comprises housing, air inlet pipe, ash releasing tube, cloth bag and back-blowing device; Housing is tube structure, and housing one end is provided with air inlet pipe, and the other end is provided with ash releasing tube, and one end of air inlet pipe is outside housing, and the other end stretches in housing, and one end of ash releasing tube is outside housing, and the other end stretches in housing, is also provided with exhaust outlet on housing; Cloth bag is arranged in housing, and cloth bag one end is contained in air inlet pipe with hoop sleeve, and the other end is contained on ash releasing tube with hoop sleeve; Back-blowing device is comprised of impulse electromagnetic valve, deflector and air bleeding valve, impulse electromagnetic valve is arranged on housing, its outlet is communicated with enclosure interior, import is connected with compressed air source, deflector is arranged on the interior place over against pulse electromagnetic valve outlet port of housing, be used for blocking compressed air and make it can not directly blow to cloth bag, in order to avoid high-speed compressed air is damaged cloth bag, air bleeding valve is arranged on exhaust outlet.
9. recirculating fluidized bed spray drying device claimed in claim 5, is characterized in that: described pulse bag type dust collector comprises housing, air inlet pipe, ash releasing tube, cloth bag and back-blowing device; Housing is tube structure, and housing one end is provided with air inlet pipe, and the other end is provided with ash releasing tube, and one end of air inlet pipe is outside housing, and the other end stretches in housing, and one end of ash releasing tube is outside housing, and the other end stretches in housing, is also provided with exhaust outlet on housing; Cloth bag is arranged in housing, and cloth bag one end is contained in air inlet pipe with hoop sleeve, and the other end is contained on ash releasing tube with hoop sleeve; Back-blowing device is comprised of back-flushing valve, blowback threeway and air bleeding valve, and port and the exhaust outlet of blowback threeway join, and another port and air bleeding valve join, and also has a port and back-flushing valve to join, and the other end and the compressed air source of back-flushing valve join.
10. the recirculating fluidized bed spray drying device described in claim 1 or 2, it is characterized in that: between described discharge gate and deduster and near the location strings of discharge gate, be associated with auxiliary discharge device, auxiliary discharge device comprises successively connected circulation stop valve and auxiliary discharge threeway, it is auxiliary discharge air inlet that auxiliary discharge threeway also has a port, and auxiliary discharge intake valve is installed on auxiliary discharge air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310748183.0A CN103706134B (en) | 2013-12-31 | 2013-12-31 | Recirculating fluidized bed spray drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310748183.0A CN103706134B (en) | 2013-12-31 | 2013-12-31 | Recirculating fluidized bed spray drying device |
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| CN103706134A true CN103706134A (en) | 2014-04-09 |
| CN103706134B CN103706134B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310748183.0A Active CN103706134B (en) | 2013-12-31 | 2013-12-31 | Recirculating fluidized bed spray drying device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101838U (en) * | 1991-08-30 | 1992-04-15 | 中国科学院工程热物理研究所 | Drier with quick circulating fluidised-jet bed |
| CN2123739U (en) * | 1992-04-02 | 1992-12-02 | 上海市化工装备研究所 | Fluid desicator |
| CN2184175Y (en) * | 1993-08-24 | 1994-11-30 | 林春 | Spraying gas dryer |
| US5899003A (en) * | 1993-03-04 | 1999-05-04 | Sinvent As | Method and apparatus for drying of materials containing volatile components |
| CN202226390U (en) * | 2011-09-19 | 2012-05-23 | 山东方达康工业纤维素有限公司 | Homogenizer charging system |
-
2013
- 2013-12-31 CN CN201310748183.0A patent/CN103706134B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101838U (en) * | 1991-08-30 | 1992-04-15 | 中国科学院工程热物理研究所 | Drier with quick circulating fluidised-jet bed |
| CN2123739U (en) * | 1992-04-02 | 1992-12-02 | 上海市化工装备研究所 | Fluid desicator |
| US5899003A (en) * | 1993-03-04 | 1999-05-04 | Sinvent As | Method and apparatus for drying of materials containing volatile components |
| CN2184175Y (en) * | 1993-08-24 | 1994-11-30 | 林春 | Spraying gas dryer |
| CN202226390U (en) * | 2011-09-19 | 2012-05-23 | 山东方达康工业纤维素有限公司 | Homogenizer charging system |
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| Publication number | Publication date |
|---|---|
| CN103706134B (en) | 2016-01-20 |
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Address after: 650236, Kunming District, Yunnan District, Yinhai, Guandu district 15, 1 units, 6 floor, Room 601 Applicant after: KUNMING TEKANG TECHNOLOGY Co.,Ltd. Address before: 650236 No. 516, No. 5, building 1, Yunnan overseas Chinese Pioneer Park, No. 13-2, Yunnan information base, Kunming economic and Technological Development Zone, Shanghai Applicant before: KUNMING TEKANG TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240320 Address after: No. 406A, 4th Floor, Platform 13, Jinding Science and Technology Park, No. 690 Xuefu Road, Fengning Street Office, Wuhua District, Kunming City, Yunnan Province, 650000 Patentee after: Yunnan Runshen Powder Technology Industrial Co.,Ltd. Country or region after: Zhong Guo Address before: 650236 Room 601, floor 6, unit 1, building 15, Yinhai District, Guandu District, Kunming, Yunnan Province Patentee before: KUNMING TEKANG TECHNOLOGY Co.,Ltd. Country or region before: Zhong Guo |
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