CN203355834U - Fluidized bed jet mill for biological pesticide production - Google Patents

Fluidized bed jet mill for biological pesticide production Download PDF

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Publication number
CN203355834U
CN203355834U CN 201320456884 CN201320456884U CN203355834U CN 203355834 U CN203355834 U CN 203355834U CN 201320456884 CN201320456884 CN 201320456884 CN 201320456884 U CN201320456884 U CN 201320456884U CN 203355834 U CN203355834 U CN 203355834U
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CN
China
Prior art keywords
classification
cylindrical shell
grading
fluidized bed
chamber
Prior art date
Application number
CN 201320456884
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Chinese (zh)
Inventor
赵士明
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山东申达作物科技有限公司
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Priority to CN 201320456884 priority Critical patent/CN203355834U/en
Application granted granted Critical
Publication of CN203355834U publication Critical patent/CN203355834U/en

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Abstract

The utility model discloses a fluidized bed jet mill for biological pesticide production. The fluidized bed jet mill comprises a base frame, wherein a milling cylinder is installed on the base frame, and a milling chamber is formed in the milling cylinder; a feeding device is arranged on one side of the lower end of the milling cylinder, and a high-speed air stream jet device is installed at the bottom of the milling cylinder; the upper end of the milling cylinder is sealed and connected with a classification case, and a discharge port is formed in one side of the classification case; and a classification chamber is formed in the classification case, and a material classification device is installed in the classification chamber. With the adoption of the scheme, due to mutual impacts and collisions among particles with main milling functions, the high-speed particles and the inner wall of the milling cylinder seldom collide, and the abrasion is reduced; and the milling fineness of materials can be controlled by adjusting the revolving speed of a classification wheel, and the application range of classification is wide.

Description

A kind of fluidized bed air flow crushing device of producing for biological pesticide
Technical field
The utility model relates to a kind of Ultra-Micro Grinding Equipment, relates to specifically a kind of fluidized bed air flow crushing device of producing for biological pesticide, belongs to biological pesticide production equipment technical field.
Background technology
In the prior art, in Ultra-Micro Grinding Equipment, comparatively desirable equipment is fluidized bed air flow crushing device, and it is a kind of dry method ultra micro Jet Mill, includes pulverizing chamber and is relatively arranged on the pulverizing nozzle on the pulverizing chamber lower sides.Pulverize nozzle and spray high velocity air to the pulverizing chamber inner chamber, impact material and make its pulverizing.It is material to be played to the zone of pulverization that the air-flow of relative pulverizing nozzle ejection forms three-dimensional jet impact disintegrating area at the pulverizing chamber inner chamber, while due to relative wind, being ejected into the impact comminution district, air-flow spreads rapidly, can make material very soon to the surrounding splatter, thereby reduce its crush efficiency.The Jet Crushing of powder, be actually each particle in macroscopical powder broken, the refinement of rupturing, diminish under the effect of external force, thereby cause the process that the performance indications of whole powder change.The method of powder ultra-fine grinding is a lot, and air-flow crushing prepares one of micron one sub-micron fine powder process exactly, and the method is to take air-flow as power, and powder, under the drive of high velocity air, is pulverized thereby the particle high-speed motion bumps.Although this method is convenient and easy, with low cost, the preparation small investment, range of application is more and more extensive, but material still has some new problems like this to put in face of us in " micronizing " process, i.e. most particles state in kinetic energy all the time in convenient powder how in the overall process of pulverizing, each collision of particle reaches optimum efficiency.
The utility model content
Problem to be solved in the utility model is to provide a kind ofly weares and teares that little, grading range is wide, the fluidized bed air flow crushing device of producing for biological pesticide of good crushing effect.
In order to address the above problem, the utility model by the following technical solutions:
A kind of fluidized bed air flow crushing device of producing for biological pesticide, comprise underframe, and the pulverizing cylindrical shell is installed on described underframe, pulverizes in cylindrical shell and be provided with crushing chamber; Lower end one side of described pulverizing cylindrical shell is provided with feed arrangement, and the bottom of described pulverizing cylindrical shell is equipped with the high velocity air injection apparatus; The upper end of described pulverizing cylindrical shell is sealedly connected with the classification housing, and a side of classification housing is equipped with discharging opening; Be provided with grading room in described classification housing, the stock grading device is installed in grading room.
Below the further optimization of the utility model to such scheme:
Feed arrangement comprises the screw feeder be communicated with crushing chamber, and the top of described screw feeder is equipped with hopper.
Further optimize: the high velocity air injection apparatus comprises several pulverizing nozzles that are arranged on pulverizing cylindrical shell bottom and are communicated with crushing chamber, the external circumference of pulverization cylinder is provided with annular gas-distribution pipe, and described annular gas-distribution pipe is pulverized between nozzle and is communicated with by breather pipe respectively with several.
Further optimize: the stock grading device comprises the grading wheel be arranged in grading room, and discharging opening is communicated with the inner chamber of grading wheel; The outside of described classification housing is equipped with the motor that drives grading wheel to rotate.
During work, material enters crushing chamber by screw feeder, and compressed air is by pulverizing nozzle to high velocity jet in crushing chamber, and material accelerates in supersonic jet, and in the repeated stock of crushing chamber center intersection, collision, reach pulverizing, entered grading room by comminuting matter with ascending air, due to the grading wheel High Rotation Speed, material is in the process risen, particle is subject to the effect of the centrifugal force of grading wheel generation, be subject to again the effect of the centripetal force of air-flow viscosity generation, when the centrifugal force be subject to when particle is greater than centripetal force, than the Cut size required, large coarse granule does not advance the grading wheel inner chamber and returns to crushing chamber and continue to be pulverized, the fine particle that meets the requirements of Cut size enters the inner chamber of grading wheel and exports by discharging opening with air-flow.
The utility model adopts such scheme, due to mutual impact, the collision between the particle of main pulverization, high-velocity particles seldom collides with the inwall of pulverizing cylindrical shell, has reduced wearing and tearing, the smashing fineness of material can be controlled by the rotating speed of adjusting grading wheel, and the scope of application of classification is wider.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The accompanying drawing explanation
The structural representation that accompanying drawing 1 is the utility model embodiment.
In figure: the 1-underframe; 2-pulverizes cylindrical shell; The 3-grading room; The 4-screw feeder; The 5-motor; The 6-grading wheel; 7-annular gas-distribution pipe; The 8-discharging opening; 9-pulverizes nozzle; The 10-breather pipe; The 11-hopper; The 12-crushing chamber; 13-classification housing.
The specific embodiment
Embodiment, as shown in Figure 1, a kind of fluidized bed air flow crushing device of producing for biological pesticide, comprise underframe 1, is equipped with on described underframe 1 and pulverizes cylindrical shell 2, pulverizes in cylindrical shell 2 and be provided with crushing chamber 12;
Lower end one side of described pulverizing cylindrical shell 2 is provided with feed arrangement, and the bottom of described pulverizing cylindrical shell 2 is equipped with the high velocity air injection apparatus;
The upper end of described pulverizing cylindrical shell 2 is sealedly connected with classification housing 13, and a side of classification housing 13 is equipped with discharging opening 8; Be provided with grading room 3 in described classification housing 13, the stock grading device is installed in grading room 3.
Feed arrangement comprises the screw feeder 4 be communicated with crushing chamber 12, and the top of described screw feeder 4 is equipped with hopper 11;
The high velocity air injection apparatus comprises several pulverizing nozzles 9 that are arranged on pulverizing cylindrical shell 2 bottoms and are communicated with crushing chamber 12, pulverize cylindrical shell 2 excircles and be provided with annular gas-distribution pipe 7, described annular gas-distribution pipe 7 is pulverized between nozzle 9 and is communicated with by breather pipe 10 respectively with several.
The stock grading device comprises the grading wheel 6 be arranged in grading room 3, and discharging opening 8 is communicated with the inner chamber of grading wheel 6; The outside of described classification housing 13 is equipped with the motor 5 that drives grading wheel 6 to rotate.
During work, material enters crushing chamber by screw feeder, and compressed air is by pulverizing nozzle 9 to high velocity jet in crushing chamber, and material accelerates in supersonic jet, and in the repeated stock of crushing chamber center intersection, collision, reach pulverizing, entered grading room by comminuting matter with ascending air, due to the grading wheel High Rotation Speed, material is in the process risen, particle is subject to the effect of the centrifugal force of grading wheel generation, be subject to again the effect of the centripetal force of air-flow viscosity generation, when the centrifugal force be subject to when particle is greater than centripetal force, than the Cut size required, large coarse granule does not advance the grading wheel inner chamber and returns to crushing chamber and continue to be pulverized, the fine particle that meets the requirements of Cut size enters the inner chamber of grading wheel and exports by discharging opening with air-flow.
The utility model adopts such scheme, due to mutual impact, the collision between the particle of main pulverization, high-velocity particles seldom collides with the inwall of pulverizing cylindrical shell, has reduced wearing and tearing, the smashing fineness of material can be controlled by the rotating speed of adjusting grading wheel, and the scope of application of classification is wider.

Claims (4)

1. a fluidized bed air flow crushing device of producing for biological pesticide, comprise underframe (1), it is characterized in that:
Be equipped with on described underframe (1) and pulverize cylindrical shell (2), pulverize in cylindrical shell (2) and be provided with crushing chamber (12); Lower end one side of described pulverizing cylindrical shell (2) is provided with feed arrangement, and the bottom of described pulverizing cylindrical shell (2) is equipped with the high velocity air injection apparatus; The upper end of described pulverizing cylindrical shell (2) is sealedly connected with classification housing (13), and a side of classification housing (13) is equipped with discharging opening (8); Be provided with grading room (3) in described classification housing (13), grading room is equipped with the stock grading device in (3).
2. a kind of fluidized bed air flow crushing device of producing for biological pesticide according to claim 1 is characterized in that:
Feed arrangement comprises the screw feeder (4) be communicated with crushing chamber (12), and the top of described screw feeder (4) is equipped with hopper (11).
3. a kind of fluidized bed air flow crushing device of producing for biological pesticide according to claim 1 and 2 is characterized in that:
The high velocity air injection apparatus comprises several pulverizing nozzles (9) that are arranged on pulverizing cylindrical shell (2) bottom and are communicated with crushing chamber (12), pulverize cylindrical shell (2) excircle and be provided with annular gas-distribution pipe (7), described annular gas-distribution pipe (7) is pulverized between nozzle (9) and is communicated with by breather pipe (10) respectively with several.
4. a kind of fluidized bed air flow crushing device of producing for biological pesticide according to claim 3 is characterized in that:
The stock grading device comprises the grading wheel (6) be arranged in grading room (3), and discharging opening (8) is communicated with the inner chamber of grading wheel (6); The outside of described classification housing (13) is equipped with the motor (5) that drives grading wheel (6) to rotate.
CN 201320456884 2013-07-30 2013-07-30 Fluidized bed jet mill for biological pesticide production CN203355834U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320456884 CN203355834U (en) 2013-07-30 2013-07-30 Fluidized bed jet mill for biological pesticide production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320456884 CN203355834U (en) 2013-07-30 2013-07-30 Fluidized bed jet mill for biological pesticide production

Publications (1)

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CN203355834U true CN203355834U (en) 2013-12-25

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105057062A (en) * 2015-07-20 2015-11-18 太仓市友联干燥粉碎设备有限公司 Airflow crushing device of fluidized bed
CN105983473A (en) * 2015-03-05 2016-10-05 江苏康鹏农化有限公司 Gas flow smashing device for pesticide production
CN106311440A (en) * 2016-08-30 2017-01-11 周易 Airflow crushing unit
CN107282251A (en) * 2017-08-23 2017-10-24 太仓市璜泾新海农机专业合作社 One kind automation thermal current fuel pulverizing plant
CN110193415A (en) * 2019-05-09 2019-09-03 芜湖职业技术学院 A kind of fluidized bed airflow pulverizer
CN111359762A (en) * 2020-04-13 2020-07-03 青岛理工大学 Fluidized bed collision type airflow mechanical ultramicro crushing equipment and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105983473A (en) * 2015-03-05 2016-10-05 江苏康鹏农化有限公司 Gas flow smashing device for pesticide production
CN105057062A (en) * 2015-07-20 2015-11-18 太仓市友联干燥粉碎设备有限公司 Airflow crushing device of fluidized bed
CN106311440A (en) * 2016-08-30 2017-01-11 周易 Airflow crushing unit
CN106311440B (en) * 2016-08-30 2019-04-12 周易 A kind of air-flow crushing unit
CN107282251A (en) * 2017-08-23 2017-10-24 太仓市璜泾新海农机专业合作社 One kind automation thermal current fuel pulverizing plant
CN110193415A (en) * 2019-05-09 2019-09-03 芜湖职业技术学院 A kind of fluidized bed airflow pulverizer
CN111359762A (en) * 2020-04-13 2020-07-03 青岛理工大学 Fluidized bed collision type airflow mechanical ultramicro crushing equipment and method

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