CN103743197A - Circulating fluidized bed jet mill - Google Patents

Circulating fluidized bed jet mill Download PDF

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Publication number
CN103743197A
CN103743197A CN201310748303.7A CN201310748303A CN103743197A CN 103743197 A CN103743197 A CN 103743197A CN 201310748303 A CN201310748303 A CN 201310748303A CN 103743197 A CN103743197 A CN 103743197A
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China
Prior art keywords
housing
outlet
valve
fluidized bed
screen cloth
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CN201310748303.7A
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Chinese (zh)
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CN103743197B (en
Inventor
贾平
杨国荣
李继春
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YUNNAN QIDAN PHARMACEUTICAL Co.,Ltd.
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KUNMING TEKANG TECHNOLOGY Co Ltd
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Publication of CN103743197A publication Critical patent/CN103743197A/en
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  • Disintegrating Or Milling (AREA)

Abstract

The invention discloses a circulating fluidized bed jet mill. A fan (1), a circulating pipeline I (2), an air inlet tee joint (6) and a circulating pipeline II (7) form a circulating channel, airflow is sucked from an air inlet valve (9) by the fan (1), materials are fluidized in the circulating channel and flow in a circulating manner at a high speed under the action of the airflow, the materials in the high-speed circulating flow process are crushed under the action of fan blades, pipe walls and mutual impact, and the circulating fluidized bed jet mill is simple in structure and high in efficiency.

Description

Recirculating fluidized bed airslide disintegrating mill
Technical field
The present invention relates to a kind of airslide disintegrating mill, belong to fluid bed and superfine communication technique field.
Background technology
Airslide disintegrating mill is generally used for the pulverizing of micro mist and ultrafine powder, the operation principle of existing airslide disintegrating mill is, compressed air enters to be preinstalled with the crushing chamber of material by nozzle high velocity jet, at the joint place of multiply high pressure draught, material is repeatedly collided, is rubbed, is sheared and pulverized, material after pulverizing moves to grading plant with ascending air under blower fan draft effect, make thickness feed separation, the fine grained that meets granularity requirements enters gathering-device by grading plant and collects, and coarse granule drops to disintegrating area to be continued to pulverize.Existing airslide disintegrating mill complex structure, need to consume a large amount of compressed air.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple in structure, and compressed air consumption is few, the recirculating fluidized bed airslide disintegrating mill that efficiency is high.
Technical scheme of the present invention is: a kind of recirculating fluidized bed airslide disintegrating mill, comprise blower fan, circulation line I, air inlet threeway, circulation line II, said modules is communicated with into circulation canal by the order of fan outlet, circulation line I, air inlet threeway, circulation line II, blower fan import, it is air inlet that air inlet threeway also has a port, intake valve is installed on air inlet, in circulation line II, there is charge door, charging valve is installed on charge door.
Blower fan is the power source of fluidisation state Flow of Goods and Materials, in order to improve the flowing velocity of fluidisation state material, improves pulverizing speed, the more than one blower fan of can connecting again on blower fan.
In order to realize the separated of thickness powder and to discharge material, as a modification of the present invention, between circulation line I and air inlet threeway, increase grading plant and the control valve being connected successively.Grading plant is for pulverizing and the separated and discharge from fluidisation state material of the satisfactory material of particle diameter, and control valve is for regulating the internal pressure of grading plant.
Grading plant in embodiment comprises housing, inlet tube, outlet, screen cloth and back-blowing device, housing is columnar structured, housing one end is provided with inlet tube, the other end is provided with outlet, one end of inlet tube is outside housing, and the other end stretches in housing, and one end of outlet is outside housing, the other end stretches in housing, is also provided with discharge gate on housing, screen cloth is columnar screen cloth, is arranged in housing, and screen cloth one end is contained on inlet tube with hoop sleeve, and the other end is contained on outlet with hoop sleeve, back-blowing device is deposited in for removing the material that affects screen cloth gas permeability on screen cloth 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 screen cloth, in order to avoid high-speed compressed air is damaged screen cloth, air bleeding valve is arranged on discharge gate, in the time of exhaust valve closure, impulse electromagnetic valve is opened, in housing, pass into compressed air screen cloth 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 discharge gate 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 screen cloth is carried out to blowback in housing.
The recirculating fluidized bed airslide disintegrating mill that has increased grading plant is work like this: close charging valve, open intake valve, start blower fan, the effect downstream of blower fan by intake valve, enter pulverizer and in circulation canal high-speed circulating flow, portion gas is discharged by grading plant; Open charging valve reinforced, material forms fluidisation state and flow at high speed in circulating line under the effect of high velocity air, swiftly flowing fluidisation state material is pulverized under fan blade, tube wall and the effect of mutually clashing into, and has pulverized and discharge gate that the satisfactory material of particle diameter is separated classified device with air-flow through the screen cloth of grading plant from fluidisation state material is discharged.
Grading plant can be a plurality of, the use that is cascaded of a plurality of grading plants.
Recirculating fluidized bed airslide disintegrating mill of the present invention adopts blower fan, circulation line I, air inlet threeway, circulation line II to form ciculation fluidized passage, under fan action, material fluidisation high-speed circulating in circulation canal flow, material in high-speed circulating flow process is pulverized under fan blade, tube wall and mutual effect of clashing into, device structure is simple, without consuming a large amount of compressed air, efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structure chart of recirculating fluidized bed airslide disintegrating mill the first embodiment of the present invention.
Fig. 2 is the cutaway view of grading plant in Fig. 1.
Fig. 3 is the structure chart of recirculating fluidized bed airslide disintegrating mill the second embodiment of the present invention.
Fig. 4 is the cutaway view of grading plant in Fig. 3.
In figure, each Reference numeral is: 1, blower fan; 2, circulation line I; 4, grading plant; 5, control valve; 6, air inlet threeway; 7, circulation line II; 8, charging valve; 9, intake valve; 21, grading plant; 22, pipeline A; 23, grading plant; 24, pipeline B; 25, blower fan; 26, blower fan; 27, pipeline C; 40, inlet tube; 41, housing; 42, impulse electromagnetic valve; 43, deflector; 45, air bleeding valve; 46, discharge gate; 47, screen cloth; 49, outlet; 50, blowback threeway; 51, back-flushing valve.
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 airslide disintegrating mill.
Referring to Fig. 1 and Fig. 2, this recirculating fluidized bed airslide disintegrating mill comprises blower fan 1, circulation line I 2, grading plant 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, grading plant 4 inlet tubes 40, grading plant 4 outlets 49, control valve 5, air inlet threeway 6, circulation line II 7, blower fan 1 import, in circulation line II 7, there is charge door, charging valve 8 is installed on charge door, in air inlet threeway 6, there is air inlet, intake valve 9 is installed on air inlet.
The grading plant of this recirculating fluidized bed airslide disintegrating mill comprises housing 41, inlet tube 40, outlet 49, screen cloth 47 and back-blowing device, housing 41 is columnar structured, housing 41 one end are provided with inlet tube 40, the other end is provided with outlet 49, one end of inlet tube 40 is outside housing 41, and the other end stretches in housing 41, and one end of outlet 49 is outside housing 41, the other end stretches in housing 41, is also provided with discharge gate 46 on housing 41; Screen cloth 47 is columnar screen clothes, and screen cloth 47 is arranged in housing 41, and screen cloth 47 one end are contained on inlet tube 40 with hoop sleeve, and the other end is contained on outlet 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 discharge gate 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 screen cloth 47 is carried out to blowback in housing 41.
The second embodiment: another kind of recirculating fluidized bed airslide disintegrating mill
Referring to Fig. 3 and Fig. 4, this recirculating fluidized bed airslide disintegrating mill comprises blower fan 1, circulation line 2, grading plant 4, control valve 5, air inlet threeway 6, circulation line II 7, grading plant 21, pipeline A22, grading plant 23, pipeline B24, blower fan 25, blower fan 26, pipeline C27.
Said modules is communicated with into circulation canal by the order of blower fan 1 outlet, circulation line I 2, grading plant 21 inlet tubes 40, grading plant 21 outlets 49, pipeline A22, grading plant 23 inlet tubes 40, grading plant 23 outlets 49, pipeline B24, grading plant 4 inlet tubes 40, grading plant 4 outlets 49, control valve 5, air inlet threeway 6, circulation line II 7, blower fan 25 imports, blower fan 25 outlets, blower fan 26 imports, blower fan 26 outlets, pipeline C27, blower fan 1 import; In circulation line II 7, there is charge door, charging valve 8 is installed on charge door, in air inlet threeway 6, have air inlet, intake valve 9 is installed on air inlet.
Grading plant 4 in the present embodiment recirculating fluidized bed airslide disintegrating mill, grading plant 21, grading plant 23 structures are identical, be that from the difference of grading plant in the first embodiment back-blowing device is different, the grading plant of the present embodiment comprises housing 41, inlet tube 40, outlet 49, screen cloth 47 and back-blowing device, housing 41 is columnar structured, housing 41 one end are provided with inlet tube 40, the other end is provided with outlet 49, one end of inlet tube 40 is outside housing 41, the other end stretches in housing 41, one end of outlet 49 is outside housing 41, the other end stretches in housing 41, on housing 41, be also provided with discharge gate 46, screen cloth 47 is columnar screen clothes, and screen cloth 47 is arranged in housing 41, and screen cloth 47 one end are contained on inlet tube 40 with hoop sleeve, and the other end is contained on outlet 49 with hoop sleeve, back-blowing device is comprised of impulse electromagnetic valve 42, deflector 43 and air bleeding valve 45, impulse electromagnetic valve 42 is arranged on housing 41, its outlet and housing 41 internal communication, import is connected with compressed air source, deflector 43 is arranged on the place exporting over against impulse electromagnetic valve 42 in housing 41, being used for blocking compressed air makes it can not directly blow to screen cloth 47, in order to avoid high-speed compressed air is damaged screen cloth 47, air bleeding valve 45 is arranged on discharge gate, when air bleeding valve 45 is closed, impulse electromagnetic valve 42 is opened, and passes into compressed air screen cloth 47 is carried out to blowback in housing 41.
This recirculating fluidized bed airslide disintegrating mill adopts three Fans serial connections as pulverizer power source, and fluidisation state Flow of Goods and Materials speed is high, and pulverizing speed is fast; With three grading plants, carry out the satisfactory material of particle separation diameter, thickness powder separating rate is fast.

Claims (6)

1. recirculating fluidized bed airslide disintegrating mill, it is characterized in that: described recirculating fluidized bed airslide disintegrating mill comprises blower fan, circulation line I, air inlet threeway, circulation line II, said modules is communicated with into circulation canal by the order of fan outlet, circulation line I, air inlet threeway, circulation line II, blower fan import, it is air inlet that air inlet threeway also has a port, intake valve is installed on air inlet, in circulation line II, there is charge door, charging valve is installed on charge door.
2. recirculating fluidized bed airslide disintegrating mill claimed in claim 1, is characterized in that: the more than one blower fan of connecting again on described blower fan.
3. the recirculating fluidized bed airslide disintegrating mill described in right 1 or 2, it is characterized in that: between described circulation line I and air inlet threeway, increase successively grading plant and control valve, described grading plant comprises housing, inlet tube, outlet, screen cloth and back-blowing device, housing is columnar structured, housing one end is provided with inlet tube, the other end is provided with outlet, one end of inlet tube is outside housing, the other end stretches in housing, one end of outlet is outside housing, the other end stretches in housing, is also provided with discharge gate on housing; Screen cloth is columnar screen cloth, is arranged in housing, and screen cloth one end is contained on inlet tube with hoop sleeve, and the other end is contained on outlet 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 filter material, in order to avoid high-speed compressed air is damaged filter material, air bleeding valve is arranged on exhaust outlet.
4. the recirculating fluidized bed airslide disintegrating mill described in right 1 or 2, it is characterized in that: between described circulation line I and air inlet threeway, increase successively grading plant and control valve, described grading plant comprises housing, inlet tube, outlet, screen cloth and back-blowing device, housing is columnar structured, housing one end is provided with inlet tube, the other end is provided with outlet, one end of inlet tube is outside housing, the other end stretches in housing, one end of outlet is outside housing, the other end stretches in housing, is also provided with discharge gate on housing; Screen cloth is columnar screen cloth, is arranged in housing, and screen cloth one end is contained on inlet tube with hoop sleeve, and the other end is contained on outlet 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.
5. the recirculating fluidized bed airslide disintegrating mill described in right 3, is characterized in that: described grading plant is a plurality of, and a plurality of grading plants are cascaded.
6. the recirculating fluidized bed airslide disintegrating mill described in right 4, is characterized in that: described grading plant is a plurality of, and a plurality of grading plants are cascaded.
CN201310748303.7A 2013-12-31 2013-12-31 Recirculating fluidized bed airslide disintegrating mill Active CN103743197B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015101279A1 (en) * 2013-12-31 2015-07-09 昆明特康科技有限公司 Circulating fluidized bed apparatus
CN104874457A (en) * 2014-12-30 2015-09-02 昆明特康科技有限公司 Efficient circulating fluidized bed grinding equipment and application method thereof
CN110433922A (en) * 2018-09-21 2019-11-12 浙江芸洁科技有限公司 A kind of processing method of konjaku powder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304049A (en) * 1979-05-28 1981-12-08 Escher Wyss Limited Process for thermal treatment, especially drying
CN2089150U (en) * 1990-06-16 1991-11-20 陈少华 Airflow circulating drier
JPH10148468A (en) * 1996-11-19 1998-06-02 Sekisui Chem Co Ltd Circulating fludized bed type drying apparatus
CN2897430Y (en) * 2006-04-21 2007-05-09 张歌今 Accelerating crusher of circulating air-flow impeller
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
CN102494524A (en) * 2011-12-07 2012-06-13 赵扬 Circulating airflow drying device for pilot plant test

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304049A (en) * 1979-05-28 1981-12-08 Escher Wyss Limited Process for thermal treatment, especially drying
CN2089150U (en) * 1990-06-16 1991-11-20 陈少华 Airflow circulating drier
JPH10148468A (en) * 1996-11-19 1998-06-02 Sekisui Chem Co Ltd Circulating fludized bed type drying apparatus
CN2897430Y (en) * 2006-04-21 2007-05-09 张歌今 Accelerating crusher of circulating air-flow impeller
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
CN102494524A (en) * 2011-12-07 2012-06-13 赵扬 Circulating airflow drying device for pilot plant test

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015101279A1 (en) * 2013-12-31 2015-07-09 昆明特康科技有限公司 Circulating fluidized bed apparatus
CN104874457A (en) * 2014-12-30 2015-09-02 昆明特康科技有限公司 Efficient circulating fluidized bed grinding equipment and application method thereof
CN104874457B (en) * 2014-12-30 2019-11-08 浙江芸洁科技有限公司 Efficient circulating fluid bed milling equipment
CN110433922A (en) * 2018-09-21 2019-11-12 浙江芸洁科技有限公司 A kind of processing method of konjaku powder

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Address after: 650236, Kunming District, Yunnan District, Yinhai, Guandu district 15, 1 units, 6 floor, Room 601

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