CN2388577Y - Cyclone dryer - Google Patents

Cyclone dryer Download PDF

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Publication number
CN2388577Y
CN2388577Y CN 99205373 CN99205373U CN2388577Y CN 2388577 Y CN2388577 Y CN 2388577Y CN 99205373 CN99205373 CN 99205373 CN 99205373 U CN99205373 U CN 99205373U CN 2388577 Y CN2388577 Y CN 2388577Y
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CN
China
Prior art keywords
collision
drying
head
drying machine
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 99205373
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Chinese (zh)
Inventor
李业波
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Feed Research Institute of Chinese Academy of Agricultural Sciences
Original Assignee
Feed Research Institute of Chinese Academy of Agricultural Sciences
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Publication date
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Priority to CN 99205373 priority Critical patent/CN2388577Y/en
Application granted granted Critical
Publication of CN2388577Y publication Critical patent/CN2388577Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a rotational flow colliding dryer, which belongs to the field of drying equipment. The utility model can solve the problems of high energy consumption and dust discharge existing in the existing drying equipment. The utility model is characterized in that the utility model adopts the combination of rotational flow flash evaporation drying and airflow colliding drying; a first level adopts the rotational flow flash evaporation dryer; a second level adopts the airflow colliding dryer; tail gas after airflow colliding drying of the second level can come back to the rotational flow flash evaporation dryer of the first level for reuse, wherein, airflow colliding drying uses two streams of high-velocity airflow with material to collide in the opposite direction in a colliding chamber, and the drying process can be completed by utilizing high efficient heat and mass transfer between the material and the airflow in the colliding process. The utility model can be used for drying viscous material with high water content.

Description

Eddy flow head-on collision drying machine
The utility model relates to a kind of eddy flow head-on collision drying machine, particularly a kind of drying equipment that spin flash drying and airflow counter-collision drying are combined.
The spin flash drying machine is a kind of prior art that can dry sticky material, and through repeatedly improving, but when the particle of the material that is dried is inhomogeneous, still existence is difficult to obtain the problem of the uniform low moisture product of moisture.And when product is low-moisture small grain size powder, exist bigger dust emission to pollute, and must increase sack cleaner, reduce dust emission.The utility model proposes the airflow counter-collision dry technology, and with spin flash drying combination, can overcome the shortcoming of existing spin flash drying well, and inherit and develop the advantage that the spin flash drying machine can dry sticky material.
The purpose of this utility model is to provide a kind of energy-saving drying equipment that can dry effectively high humidity sticky material.
Of the present utility model being characterised in that: adopt the dry combination of spin flash drying and airflow counter-collision, one-level adopts spin flash drying, and secondary adopts the airflow counter-collision drying, and secondary drying is after the tail gas of cyclonic separation is all got back to the rotary flow desiccator of one-level utilizes again.Wherein the dry two strands of air-flows that carry material that quicken through blower fan that adopt of airflow counter-collision are at head-on collision indoor bump, the greatly heat and mass of intensified drying process in opposite directions.
First advantage of the present utility model is energy-efficient.The energy-saving effect of this utility model mainly comes from the reason of following three aspects: the firstth, and the strong agitation of spin flash drying device and cyclonic action can fully contact material with hot blast, have improved the drying efficiency of spin flash drying process; The secondth, in the airflow counter-collision dry run,, strengthened the heat and mass between material and air-flow, thereby improved the drying efficiency of dry run because the mutual bump between material and air-flow has improved the speed of related movement between material and air-flow; Last because secondary waste gas is all recycled, significantly improved the thermal efficiency of a whole set of drying equipment.
Second advantage of the present utility model is pollution-free and dust emission.The one-level spin flash drying adopts the two stage cyclone cleaner, because the material behind the spin flash drying still contains certain moisture, proportion is bigger, does not have dust to form substantially, so can accomplish not have dust emission after the two-stage separation.The secondary air flow head-on collision is dry because tail gas all reclaims, and does not therefore also have dust emission and pollution problem.
The 3rd advantage of the present utility model is that adaptability is strong.The drying that can be used for thick, paste, filter cake shape and granular material.Dried moisture can drop to below 1%.Because drying time is short especially, this utility model also can be used for the drying of heat sensitive material.
Last advantage of the present utility model is to have crushing effect, can directly obtain powdery product after drying.The strike of the agitator of spin flash drying device, the head-on collision of the mutual bump of storeroom and secondary air flow is used for quickening to carry the fan blade of material pneumatic in the drying in the airflow counter-collision dry run, can play the material grinding effect.
Below by most preferred embodiment and accompanying drawing eddy flow head-on collision drying machine of the present utility model is described, accompanying drawing 1 is the schematic diagram of a preferred embodiment of the utility model.Accompanying drawing 2 is schematic diagrames of another embodiment of the present utility model.
Embodiments of the invention 1 mainly comprise spin flash drying device 1, drawing-in device 2, agitator 3, spin flash dryer outlet 4, cyclone separator 5, cyclone separator 6, airlock 7, blower fan 8, airflow counter-collision drier 9, blast pipe 10, blower fan 11, head-on collision chamber 12, head-on collision chamber outlet 13, cyclone separator 14, airlock 15.Drawing-in device 2 in the utility model is the helical feed feeding, and its rate of feeding can be regulated by motor speed.Hot blast carries material formation eddy flow after tangentially entering spin flash drying device 1, material carries out heat and mass with hot blast in the process that eddy flow rises, finish drying and dehydrating, the less material of quality is discharged with air-flow from the outlet 4 that is positioned at spin flash drying device 1 upper end owing to centrifugal force is little, the bigger particle of quality is under action of centrifugal force, run into the bottom of falling spin flash drying device 1 behind the outer wall, after the agitator 3 of rotation is at a high speed smashed, carried rising by whirlwind again.The material of discharging from rotary flow desiccator 1 at first separates by primary cyclone 5, and the product of separating is by the blast pipe 10 of the airflow counter-collision drier 9 of airlock 7 direct feeding secondarys.Tail gas directly discharges through blower fan 8 behind the material that secondary cyclone 6 collection part one-levels are not separated.
The material that enters airflow counter-collision drier 9 quickens to form two strands of high velocity airs that carry material by blower fan 11, sprays into vertically arranged head-on collision chamber 12 from two ends up and down, forms in head-on collision chamber 12 and clashes, and finishes dry run.In order to meet the requirements of the head-on collision effect, two strands of air-flows that enter the head-on collision chamber must have identical speed, and the optimum value of air velocity is 20-30m/s.Head-on collision chamber 12 is the cylindrical of two sideband cone angles, air-flow is ejected in the indoor bump in opposite directions of head-on collision from the nozzle of circular cone drift angle, material dewaters in strong knockout process, after clashing into several times, discharge by the head-on collision chamber outlet 13 that is positioned at sidewall upper edge head-on collision device axis centre position, entering cyclone separator 14 separates, tail gas after the separation is directly got back to the air inlet pipe of one-level spin flash drying device 1, because one-level spin flash drying device 1 is the negative pressure operation, therefore the tail gas and the ozone of discharging can be sucked together.Product after the cyclonic separation is discharged through airlock 15 and is collected.
Embodiments of the invention 2 mainly comprise pneumatic conveyer dryer 16, drawing-in device 17, cyclone separator 18, cyclone separator 19, airlock 20, blower fan 21, airflow counter-collision drier 22, blower fan 23, head-on collision chamber 24, head-on collision chamber outlet 25, cyclone separator 26, airlock 27.Drawing-in device 17 among the embodiment 1 is the helical feed feeding, and its rate of feeding can be regulated by motor speed.Wet stock directly feeds in the vertical pneumatic conveyer dryer 16, air-flow carries material and carries in drying tube, and in course of conveying, dewater, the material behind the pneumatic conveying drying is after cyclone separator 18 separates, and the product of separating is fed into the airflow counter-collision drier 22 of secondary through airlock 20.Tail gas directly discharges through negative-pressure air fan 21 behind the material that secondary cyclone 19 collection part one-levels are not separated.
The material that enters airflow counter-collision drier 22 quickens to form two strands of high velocity airs that carry material by blower fan 23, sprays into vertically arranged head-on collision chamber 24 from two ends up and down, forms in head-on collision chamber 24 and clashes, and finishes dry run.In order to meet the requirements of the head-on collision effect, two strands of air-flows that enter the head-on collision chamber must have identical speed, and the optimum value of air velocity is 20-30m/s.Head-on collision chamber 24 is the cylindrical of two sideband cone angles, air-flow is ejected in the indoor bump in opposite directions of head-on collision from the nozzle of circular cone drift angle, material dewaters in strong knockout process, after clashing into several times, discharge by the head-on collision chamber outlet 25 that is positioned at sidewall upper edge head-on collision device axis centre position, and by cyclone separator 26 separation, tail gas after the separation is directly got back to the air inlet pipe of one-level pneumatic conveyer dryer 16, because one-level pneumatic conveyer dryer 16 is the negative pressure operation, therefore the tail gas and the ozone of discharging can be sucked together.Product after the cyclonic separation is discharged through airlock 27.

Claims (9)

1. eddy flow head-on collision drying machine, it mainly includes spin flash drying device, airflow counter-collision drying machine, cyclone separator, drawing-in device and blower fan.
2. by the described eddy flow head-on collision of claim 1 drying machine, it is characterized in that: one-level adopts spin flash drying, and secondary adopts the airflow counter-collision drying, and the tail gas behind the secondary drying is all got back to the spin flash drying of one-level and thought highly of new utilization.
3. by the described eddy flow head-on collision of claim 1 drying machine, it is characterized in that: the exhaust outlet of spin flash drying device is connected with cyclone separator, and the discharge gate of cyclone separator links by the air inlet pipe of airlock and secondary air flow head-on collision drying machine.
4. by the described airflow counter-collision drying machine of claim 3, it is characterized in that: material enters a V-type accelerating tube after quickening by blower fan, forms two strands of high velocity airs that carry material, enters the two ends up and down of head-on collision chamber respectively.
5. by the described airflow counter-collision drying machine of claim 3, it is characterized in that: the head-on collision chamber is for being arranged vertically, air-flow carry material through accelerating tube quicken the back from about two ends spray into the chamber of clashing.
6. by the described airflow counter-collision drying machine of claim 3, it is characterized in that: two strands of air-flows that enter the head-on collision device all carry material.
7. by the described airflow counter-collision drying machine of claim 3, it is characterized in that: two strands of air-flows have identical speed, and the optimum value of air velocity is 20-30m/s.
8. by the described airflow counter-collision drying machine of claim 3, it is characterized in that: the head-on collision chamber is the cylindrical of two sideband cone angles, and air-flow is ejected in the indoor bump in opposite directions of head-on collision from the nozzle of circular cone drift angle.
9. by the described airflow counter-collision drying machine of claim 3, it is characterized in that: the airflow counter-collision drying machine also can make up with pneumatic conveying drying except that making up with the spin flash drying device.
CN 99205373 1999-03-23 1999-03-23 Cyclone dryer Expired - Fee Related CN2388577Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 99205373 CN2388577Y (en) 1999-03-23 1999-03-23 Cyclone dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 99205373 CN2388577Y (en) 1999-03-23 1999-03-23 Cyclone dryer

Publications (1)

Publication Number Publication Date
CN2388577Y true CN2388577Y (en) 2000-07-19

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Application Number Title Priority Date Filing Date
CN 99205373 Expired - Fee Related CN2388577Y (en) 1999-03-23 1999-03-23 Cyclone dryer

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1862198B (en) * 2006-06-19 2010-05-12 开封市四达农产品设备有限公司 Airflow clash vortex type flash drying device
CN101881550A (en) * 2010-06-30 2010-11-10 国家粮食局科学研究院 Low-temperature high-efficiency fluidization combined drying process and equipment thereof
CN101726160B (en) * 2009-11-10 2013-04-17 中国烟草总公司郑州烟草研究院 Airflow drying device for dispersed material
CN115283109A (en) * 2022-03-30 2022-11-04 安徽泰德康农业科技发展有限公司 Air flow drying and opposite-flushing refining device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1862198B (en) * 2006-06-19 2010-05-12 开封市四达农产品设备有限公司 Airflow clash vortex type flash drying device
CN101726160B (en) * 2009-11-10 2013-04-17 中国烟草总公司郑州烟草研究院 Airflow drying device for dispersed material
CN101881550A (en) * 2010-06-30 2010-11-10 国家粮食局科学研究院 Low-temperature high-efficiency fluidization combined drying process and equipment thereof
CN115283109A (en) * 2022-03-30 2022-11-04 安徽泰德康农业科技发展有限公司 Air flow drying and opposite-flushing refining device

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C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee