CN2246545Y - Horizontal gas-flow fluidizing grinding grading machine - Google Patents
Horizontal gas-flow fluidizing grinding grading machine Download PDFInfo
- Publication number
- CN2246545Y CN2246545Y CN 95242362 CN95242362U CN2246545Y CN 2246545 Y CN2246545 Y CN 2246545Y CN 95242362 CN95242362 CN 95242362 CN 95242362 U CN95242362 U CN 95242362U CN 2246545 Y CN2246545 Y CN 2246545Y
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- labyrinth
- air
- ring
- crushing
- grading
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Abstract
The utility model relates to a horizontal air flow fluidizing grinding and grading machine which is composed of a fluidizing bed and a grading machine set. An air seal mechanism composed of a balancing ring, an external ring and an internal ring is arranged on a material exhaust neck of the grading machine. Labyrinth winding paths are formed by intervals among meshing surfaces meshed between a convex and concave type end surface of the air seal mechanism and a convex and concave type end surface of a head part of a grading wheel. Air with certain pressure in an air chamber between rings passes through blowing intervals between ring intervals, and the labyrinth winding paths are sealed by air in segments, so that the pressure difference of the labyrinth winding paths is zero. The utility model avoids coarse powder from entering the labyrinth winding paths, eliminates heat generating by friction and increases grading accuracy. The utility model can also be used for crushing and grading materials with high hardness and materials sensitive to temperature in a fluidizing way. The service life of the machine is prolonged, and cost for mass production is saved.
Description
The utility model is a kind of horizontal air-flow fluidisation crushing and classification machine, belongs to the further improvement to horizontal jet mill grinding machine structure.
Common similar machine is made up of fluid bed and grader, for guaranteeing the high speed rotating of grading wheel, leaves curved gap between meshing of the convex-concave shape end face of its grading wheel head and the concavo-convex end face of housing discharge gate, is called labyrinth.The grading wheel of high speed rotating is discharged classified impeller blade of the fine powder that crushes and discharging opening, goes out through the discharge neck of housing, reaches the purpose of classification.Its deficiency is:
1, during the grading wheel high speed rotating, the two ends of labyrinth are held all the time and are existed pressure reduction, and the meal material will enter labyrinth inevitably, make the fine powder Granularity Distribution inequality of discharging opening, and effectiveness of classification is low;
2, because the meal material makes the grading wheel fretting wear serious in labyrinth, cause the grader heating, heat up, so machine can only be used for the classification of general hardness material, can not be used for the classification of high rigidity material, can not be used for the responsive to temperature material (is that temperature is higher than a certain limiting temperature, just lose the material (down with) of all or part of material behavior) classification, the scope of application is limited.
3, because the discharging opening of grading wheel head center is a straight-tube shape, identical with the diameter of discharge gate, so the fine powder of taking out of with high velocity air behind the classified blade of taking turns is very big to the friction dynamics of discharge gate wall, friction and wear is very big relatively.
4, the wearability of the fluid bed of horizontal jet mill grinding machine is better, long service life, but wearing no resistance usually because of grading wheel, service life is short, needing to change again and again expensive grading wheel, not only influence production but also increase cost, is example to pulverize zircon sand, needed to change scalping wheel, about 2.5 ten thousand yuan of each grading wheel in every month.
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art and a kind of horizontal jet mill grinding machine is provided, can eliminate the pressure reduction between labyrinth beginning, the terminal, the friction of elimination grading wheel fully, realize no pressure reduction classification, improve the wearability of effectiveness of classification and grading wheel, improve the service life of machine, enlarge the scope of application of grading material.
The purpose of this utility model can reach by following measure: be made up of fluid bed and grader, crushing chamber is arranged at the fluid bed bottom, jet pipe is arranged on it, being fixed in the grader on the discharge neck on the housing has by interior ring, outer shroud, gimbal is formed sealing gland mechanism, by gimbal, gap between meshing of concavo-convex end face that outer shroud and interior ring are formed and grading wheel head convex-concave shape end face constitutes labyrinth, between gimbal and the outer shroud, all are air chambers between outer shroud and the interior ring, and the annular space winding-up gap that is communicated with labyrinth is arranged respectively, there are at least two jet pipes to distribute symmetrically and are fixed on the crushing chamber of fluid bed.
The purpose of this utility model can also reach by following measure: the annular space winding-up gap of the air chamber of gimbal and outer interannular is greater than the annular space winding-up gap of the air chamber of outer shroud and interior interannular; The discharging opening of grading wheel head center is horn-like, and its osculum outwardly and put in the discharge gate; On two air chambers the joint that connects source of the gas is arranged all.
Description of drawings: Fig. 1 is horizontal jet mill grinding machine structure chart
Fig. 2 is horizontal jet mill grinding machine part section structure chart
The utility model is compared prior art and is had following advantage:
1, be fixed in the discharge neck employing inner and outer rings of housing, the air seal structure that gimbal forms on the grader, By regulating on two air chambers the joint that connects source of the gas, make in outer shroud and the interior interannular air chamber air pressure greater than Air pressure in the air pressure at labyrinth top and gimbal and the outer interannular air chamber, a level pressure in two air chambers The gas of power is jetted the gap with labyrinth segmentation sealing gland by annular space, and makes labyrinth beginning, terminal Pressure tend to balance, thereby eliminated the pressure reduction of labyrinth beginning, terminal fully, make its pressure reduction be Zero, both guaranteed the high speed rotating of grading wheel, avoid again bringing into of coarse dust, make Granularity Distribution Evenly, improved effectiveness of classification.
2, adopting inner and outer rings, gimbal air seal structure and grading wheel discharging opening is trumpet-shaped structure, keeps away Exempt from coarse dust and enter labyrinth, slow down fine powder to the impact dynamics of discharge gate wall, eliminated grader The fretting wear of each parts has solved the heating problem of temperature rise of grader, makes machine not be only applicable to one As the fluidisation crushing and classification of hardness material, also be applicable to the material of higher hardness and responsive to temperature material The fluidisation crushing and classification, as: can be that 60 ℃ plastic additive carries out classification to a kind of maximum temperature, Enlarged the scope of application.
3, owing to reduced the friction of grading wheel, improved the wearability of grading wheel, rationally be provided with the jet pipe on the crushing chamber, reduced the wearing and tearing of powder, so improved the anti-wear performance and the service life of machine greatly to the fluid bed crushing chamber.
4, effectiveness of classification of the present utility model, product purity and anti-wear performance are better than any horizontal jet mill grinding machine.
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:
As shown in Figure 1: horizontal jet mill grinding machine is made up of grader (15) and fluid bed (16), and grader includes grading wheel (2) and the head (8) that is fixed in the housing (1) on the machine shaft and is fixed in discharge neck (3) on the housing (1).Two jet pipes (17) distribute symmetrically and are fixed on the crushing chamber (18) of fluid bed (16) bottom, and feed pipe (19) is arranged on the crushing chamber.
As shown in Figure 2: the discharge neck (3) in the grader (15) is made up of gimbal (5), outer shroud (7) and interior ring (9), its center is discharge gate (14), and the gap between meshing of the concavo-convex end face of being made up of gimbal (5), outer shroud (7) and interior ring (9) and the convex-concave shape end face of grading wheel head (8) constitutes labyrinth (12).Between gimbal (5) and the outer shroud (7), be respectively air chamber (4), (6) between outer shroud (7) and the interior ring (9), annular space winding-up gap (10), (11) and the joint that is connected source of the gas of connection labyrinth (12) are arranged respectively on the air chamber.The annular space winding-up gap (10) of air chamber (4) is greater than the annular space winding-up gap (11) of air chamber (6), the discharging opening (13) at grading wheel head (8) center is horn-like, its osculum puts in the discharge gate (14) of discharge neck outwardly, the fine powder of taking out of with high velocity air, release is slowed down behind horn mouth, fine powder to the friction dynamics of discharge gate wall slow down, wearing and tearing reduces greatly.
By regulating the joint that connects source of the gas on two air chambers, make air pressure in the air chamber (6) greater than the air pressure at labyrinth (12) top and the air pressure in the air chamber (4), and the gas of certain air pressure is by the annular space gap (10) of jetting in the air chamber, (11) with labyrinth (12) segmentation sealing gland, make the labyrinth beginning, the pressure of terminal tends to balance, thereby eliminated the labyrinth beginning fully, the pressure reduction of terminal, making its pressure reduction is zero, both guaranteed the high speed rotating of grading wheel, avoid bringing into of coarse dust again, the friction of grader and the problem of heating up have been eliminated, make Granularity Distribution even, improve effectiveness of classification, also can be used for the fluidisation crushing and classification of higher material of hardness and responsive to temperature material, enlarged the scope of application, greatly prolong the service efficiency and the service life of machine, saved a large amount of production costs.
Claims (4)
1, the horizontal air-flow fluidisation crushing and classification machine of forming by fluid bed and grader, the fluid bed bottom is a crushing chamber, feed pipe is arranged on it, grading wheel that connects machine shaft in the housing and the discharge neck that is fixed on the housing are arranged in the grader, grading wheel has blade, head center has discharging opening, gap between meshing of the convex-concave shape end face of head and the concavo-convex end face of discharge neck forms labyrinth, it is characterized in that: discharge neck (3) has one by gimbal (5), the sealing gland mechanism that outer shroud (7) and interior ring (9) are formed, its center is discharge gate (14), by gimbal (5), gap formation labyrinth (12) between meshing of the concavo-convex end face that outer shroud (7) and interior ring (9) are formed and the convex-concave shape end face of grading wheel head (8), between ring (5) and the ring (7), between ring (7) and the ring (9) is respectively air chamber (4), (6), each air chamber is respectively by annular space winding-up gap (10), (11) be communicated with labyrinth (12), have at least two jet pipes (17) to distribute symmetrically and be fixed on the crushing chamber (18).
2, horizontal air-flow fluidisation crushing and classification machine as claimed in claim 1, the annular space spray gap (10) that it is characterized in that air chamber (4) is greater than air chamber (6) annular space winding-up gap (11).
3, horizontal air-flow fluidisation crushing and classification machine as claimed in claim 1 or 2, the discharging opening (13) that it is characterized in that grading wheel head (8) center be for horn-like, and its osculum outwardly and put in the discharge gate (14).
4, horizontal air-flow fluidisation crushing and classification machine as claimed in claim 1 or 2 is characterized in that the joint that connects source of the gas is all arranged on air chamber (4), (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242362 CN2246545Y (en) | 1995-11-06 | 1995-11-06 | Horizontal gas-flow fluidizing grinding grading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242362 CN2246545Y (en) | 1995-11-06 | 1995-11-06 | Horizontal gas-flow fluidizing grinding grading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2246545Y true CN2246545Y (en) | 1997-02-05 |
Family
ID=33883335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95242362 Expired - Fee Related CN2246545Y (en) | 1995-11-06 | 1995-11-06 | Horizontal gas-flow fluidizing grinding grading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2246545Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580924A (en) * | 2012-02-28 | 2012-07-18 | 山东惟远新材料装备有限公司 | Countercurrent classifier |
| CN102601053A (en) * | 2012-02-27 | 2012-07-25 | 山东惟远新材料装备有限公司 | Airflow grader |
| CN114011715A (en) * | 2021-12-14 | 2022-02-08 | 昆山强威粉体设备有限公司 | Grading wheel negative pressure discharging device of fluidized bed collision type jet mill |
| CN114534884A (en) * | 2022-01-07 | 2022-05-27 | 江苏晋瑄陶瓷设备有限公司 | Powder melting and crushing machine |
-
1995
- 1995-11-06 CN CN 95242362 patent/CN2246545Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601053A (en) * | 2012-02-27 | 2012-07-25 | 山东惟远新材料装备有限公司 | Airflow grader |
| CN102580924A (en) * | 2012-02-28 | 2012-07-18 | 山东惟远新材料装备有限公司 | Countercurrent classifier |
| CN114011715A (en) * | 2021-12-14 | 2022-02-08 | 昆山强威粉体设备有限公司 | Grading wheel negative pressure discharging device of fluidized bed collision type jet mill |
| CN114011715B (en) * | 2021-12-14 | 2022-12-06 | 昆山强威粉体设备有限公司 | Grading wheel negative pressure discharging device of fluidized bed collision type jet mill |
| CN114534884A (en) * | 2022-01-07 | 2022-05-27 | 江苏晋瑄陶瓷设备有限公司 | Powder melting and crushing machine |
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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 |