CN2242730Y - Controllable fluidized-bed apparatus of colliding-type air-flow mill - Google Patents
Controllable fluidized-bed apparatus of colliding-type air-flow mill Download PDFInfo
- Publication number
- CN2242730Y CN2242730Y CN 95218920 CN95218920U CN2242730Y CN 2242730 Y CN2242730 Y CN 2242730Y CN 95218920 CN95218920 CN 95218920 CN 95218920 U CN95218920 U CN 95218920U CN 2242730 Y CN2242730 Y CN 2242730Y
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- China
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- nozzle
- valve
- air flow
- dust
- airflow milling
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Abstract
The utility model relates to a controllable fluidized-bed apparatus of a collision type air flow mill, characterized in that the lower part of the lower mill chamber (1) of the air flow mill is provided with an upward lower spray nozzle (8); The air inlet pipeline of the lower spray nozzle (8) is provided with a pressure gauge (4), a pressure regulating valve (5), and a stop valve (6). The lower part of the nozzle (8) is simultaneously provided with an unloading dust discharging valve (7). The dust density of a crushing zone iii, the dust transmission speed of a transmission zone ii, and the dust particle diameter accuracy of a classification zone i are adjusted by controlling the air flow velocity that the nozzle (8) shooting into the crushing zone iii for making materials with different density obtain optimum grain size distribution and maximum yield. A colliding type air flow mill arranged according to three nozzles in the shape of the y can play the action of adjusting the position of a collision point (or crushing a central point).
Description
The utility model relates to a kind of controlled fluidized bed plant that is used for the collision type airflow milling.
The collision type airflow milling is to be used for material is crushed to ultra tiny processing technique equipment below 10 microns, its operation principle is to utilize the high velocity air nozzle ejection to go out high velocity air, make and bump, rub between the granule materials self and oneself's pulverizing, be particularly suitable for processing the material of high rigidity, as diamond, carborundum, corundum etc.
At present, the collision type airflow milling all is Compressed Gas to be injected from the nozzle of horizontal layout pulverize the district both at home and abroad, make material in ultrasonic jet-stream wind, be accelerated, pulverize, crushing rear material upwards transmits and enters graded region at transmission range, chosen the material of required fineness again by the grading plant classification, last discharging is final products; Do not turned back to again through transmission range simultaneously and pulverize district's continuation pulverizing by the selected coarse fodder of classification.Material at above-mentioned pulverizing district → transmission range → graded region → transmission range → pulverizing Qu Doushi with the fluid bed state transfer.Existing domestic and international collision type airflow milling does not all have special device that its goods fluid bed state is controlled, therefore, when comminuting matter density differs greatly, the difficult control of the granularity of its final products, output is not high yet; Its head-on collision point (promptly the pulverizing central point) position of collision type airflow milling that has " Y " font three nozzles in addition is also non-adjustable.
The purpose of this utility model is exactly that a kind of device that can control the goods fluid bed of collision type airflow milling is provided at above-mentioned defective of the prior art, makes that to pulverize district's dust density, transmission range dust transmission speed and graded region dust size precision adjustable.
The purpose of this utility model is achieved in that increases a following nozzle that makes progress below common collision type airflow milling, and Pressure gauge, pressure regulator valve and stop valve are set on the air inlet pipeline of nozzle, and an off-load ash-valve is set in the nozzle bottom simultaneously; Inject the air velocity that mill chamber is pulverized the district by controlling described nozzle down, regulate and pulverize district's dust density, transmission range dust transmission speed and graded region dust size precision.
Compared with prior art, the utility model makes the material of different densities all can obtain optimal granularity distribution and maximum output quickly and easily, to the collision type airflow milling of three nozzles " Y " font layout owing to can control the fluid bed state.Adopt technology of the present utility model, can also play the effect of regulating head-on collision point (promptly pulverizing central point) position, and the utility model is easy and simple to handle reliably, cost is low.
Description of drawings:
Fig. 1 is a structural principle schematic diagram of the present utility model.
Fig. 2 is the local amplification view of mill chamber under the utility model (1).
Fig. 3 is the local amplification view of nozzle bearing under the utility model (2) and threeway (3).
Embodiment is further described the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～3, the mill chamber of collision type airflow milling comprises graded region I from top to bottom, transmission range II and pulverizing district III, part shown in controlled fluidized bed plant is in the dashed rectangle among Fig. 1: following mill chamber (1) is the cone structure that is designed to have the α cone angle on the basis of existing horizontal layout side nozzle at home and abroad, the α value is 45 °～75 °, with 60 ° is the best, in being provided with, following mill chamber (1) bottom loads the bearing (2) of nozzle (8), connect Pressure gauge (4) in turn in the side by threeway (3) again, pressure regulator valve (5), stop valve (6), threeway (3) bottom then connects off-load ash-valve (7); (9) are sealing among Fig. 3; For ease of installing, locating, the interior shape of following nozzle (8) can be designed to " Lavalle " nozzle shape, and profile can be designed to bolt shape.
Described controlled fluidized bed plant can be undertaken by following step in use: start airflow milling, open off-load ash-valve (7) ash discharge, close off-load ash-valve (7) then, open to carry and end valve (6), regulate pressure regulator valve (5), monitor pressures table (4), make air-flow enter threeway (3) and also quicken to inject down mill chamber (1) by bearing (2), following nozzle (8), air-flow directly influences the fluid bed state of pulverizing district III, transmission range II and graded region I in the α angular range, can reach the purpose of control fluid bed.
Structure applications of the present utility model not only can reach the purpose of control fluid bed on the collision type airflow milling of three nozzles " Y " font layout, can also play the effect of regulating head-on collision point (promptly pulverizing central point) position.
Claims (4)
1. the controlled fluidized bed plant of a collision type airflow milling, following mill chamber (1) below that it is characterized in that airflow milling is provided with a following nozzle (8) that makes progress, and on the air inlet pipeline of following nozzle (8), Pressure gauge (4), pressure regulator valve (5) and stop valve (6) are set, in the bottom of nozzle (8) an off-load ash-valve (7) is set simultaneously.
2. the controlled fluidized bed plant of collision type airflow milling as claimed in claim 1, it is characterized in that described nozzle (8) down is arranged in the bearing (2), and connecting described Pressure gauge (4), pressure regulator valve (5), stop valve (6) in turn in the side by threeway (3), threeway (3) bottom then connects described off-load ash-valve (7).
3. the controlled fluidized bed plant of collision type airflow milling as claimed in claim 1 or 2 is characterized in that described mill chamber (1) down is for having the cone structure of 45 °～75 ° of cone angles.
4. the controlled fluidized bed plant of collision type airflow milling as claimed in claim 1 or 2 is characterized in that the interior shape of nozzle (8) is " Lavalle " nozzle shape down, and profile is a bolt shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218920 CN2242730Y (en) | 1995-07-28 | 1995-07-28 | Controllable fluidized-bed apparatus of colliding-type air-flow mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218920 CN2242730Y (en) | 1995-07-28 | 1995-07-28 | Controllable fluidized-bed apparatus of colliding-type air-flow mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242730Y true CN2242730Y (en) | 1996-12-18 |
Family
ID=33867279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95218920 Expired - Fee Related CN2242730Y (en) | 1995-07-28 | 1995-07-28 | Controllable fluidized-bed apparatus of colliding-type air-flow mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242730Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786037A (en) * | 2010-03-19 | 2010-07-28 | 常州精钢机械有限公司 | Double-layer mainframe grinding chamber of cracker |
| CN101786036A (en) * | 2010-03-19 | 2010-07-28 | 常州精钢机械有限公司 | Active superfine jet mill |
| CN102179286A (en) * | 2011-04-11 | 2011-09-14 | 上海大学 | Non-abrasion extrusion and grinding slurry pressure generation device and method |
| CN103990539A (en) * | 2013-12-31 | 2014-08-20 | 厦门钨业股份有限公司 | Method for controlling air flow of air-flow milling apparatus, and air-flow milling apparatus |
| CN109877329A (en) * | 2019-04-16 | 2019-06-14 | 北京科技大学 | 3D printing titanium or titanium alloy powder is prepared based on fluidized bed jet mill technology |
-
1995
- 1995-07-28 CN CN 95218920 patent/CN2242730Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786037A (en) * | 2010-03-19 | 2010-07-28 | 常州精钢机械有限公司 | Double-layer mainframe grinding chamber of cracker |
| CN101786036A (en) * | 2010-03-19 | 2010-07-28 | 常州精钢机械有限公司 | Active superfine jet mill |
| CN102179286A (en) * | 2011-04-11 | 2011-09-14 | 上海大学 | Non-abrasion extrusion and grinding slurry pressure generation device and method |
| CN102179286B (en) * | 2011-04-11 | 2012-11-07 | 上海大学 | Non-abrasion extrusion and grinding slurry pressure generation device and method |
| CN103990539A (en) * | 2013-12-31 | 2014-08-20 | 厦门钨业股份有限公司 | Method for controlling air flow of air-flow milling apparatus, and air-flow milling apparatus |
| CN103990539B (en) * | 2013-12-31 | 2015-11-11 | 厦门钨业股份有限公司 | A kind of method and air-flow mill apparatus controlling airflow milling device air-flow |
| CN109877329A (en) * | 2019-04-16 | 2019-06-14 | 北京科技大学 | 3D printing titanium or titanium alloy powder is prepared based on fluidized bed jet mill technology |
| US11911826B2 (en) | 2019-04-16 | 2024-02-27 | University Of Science And Technology Beijing | Preparation of titanium and titanium alloy powder for 3D printing based on fluidized bed jet milling technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |