CN108114793B - Horizontal fluid bed jet mill - Google Patents
Horizontal fluid bed jet mill Download PDFInfo
- Publication number
- CN108114793B CN108114793B CN201711325060.0A CN201711325060A CN108114793B CN 108114793 B CN108114793 B CN 108114793B CN 201711325060 A CN201711325060 A CN 201711325060A CN 108114793 B CN108114793 B CN 108114793B
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- Prior art keywords
- chamber
- jet mill
- transition
- bed jet
- crushing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
- B02C19/068—Jet mills of the fluidised-bed type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
The application discloses a horizontal fluidized bed jet mill, which comprises a crushing chamber, a transition chamber and a classification chamber, wherein the classification chamber comprises a classification wheel, and the crushing chamber, the transition chamber and the classification chamber are communicated in the horizontal direction; the separation plate is positioned between the crushing chamber and the transition chamber and separates the crushing chamber from the transition chamber; the separation plate is of a porous structure; the application also includes a return plate. The application aims to improve the efficiency of equipment and solve the problem of heavy weight and difficult operation of the traditional fluid bed jet mill.
Description
Technical Field
The application relates to the field of machinery, in particular to an airflow pulverizer.
Background
The existing fluid bed jet mill is all vertical. In some workshops, the height is limited, and the use of vertical fluidized bed jet mills is limited. Some workshops cannot be used at all; for this purpose, people open up the floor in the middle of the two floors. Therefore, the traditional fluidized bed jet mill has heavy equipment and low running operation efficiency, and the equipment efficiency is low.
Disclosure of Invention
The embodiment of the application provides a horizontal fluid bed jet mill, which aims to improve equipment efficiency and solve the problems of heavy weight and difficult operation of the traditional fluid bed jet mill.
The application provides a horizontal fluidized bed jet mill, which comprises a crushing chamber, a transition chamber and a classification chamber, wherein the classification chamber comprises a classification wheel, and the crushing chamber, the transition chamber and the classification chamber are communicated in the horizontal direction; the separation plate is positioned between the crushing chamber and the transition chamber and separates the crushing chamber from the transition chamber; the separation plate is of a porous structure.
Further, the upper bottom of the inner wall connected with the crushing chamber and the transition chamber of the horizontal fluidized bed jet mill comprises a reflux plate; the reflux plate forms a slope, one end with a low position is positioned at the bottom of the crushing chamber, and one end with a high position is positioned at the communication position of the crushing chamber and the transition chamber.
Or the reflux plate is of a convex structure, the highest point of the reflux plate is positioned at the communication position of the crushing chamber and the transition chamber, and the two ends of the reflux plate are respectively positioned at the bottoms of the crushing chamber and the transition chamber.
Preferably, in the embodiment of the horizontal fluidized bed jet mill, the crushing chamber, the transition chamber and the classifying chamber are coaxial cylindrical structures and axially horizontal. Or the crushing chamber, the transition chamber and the classifying chamber are of cylindrical structures with parallel axial directions; the bottom of the crushing chamber is lower than the bottom of the transition chamber.
Further preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application, wherein the separation plate is net-shaped.
Further preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application, wherein the transition chamber wall is provided with a viewing hole.
Still further preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application, wherein the mill chamber includes a feed port in an upper portion thereof and a purge port in a lower portion thereof.
Still preferably, the horizontal fluid bed jet mill according to any one of the embodiments of the present application, wherein a classification wheel driving motor is horizontally connected to the classification chamber to drive the classification wheel; the upper part of the classifying chamber is an outlet.
Still preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application further includes a chute in a horizontal direction; the crushing chamber, the transition chamber and the grading chamber are integrally arranged in the chute.
The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:
the fluidized bed jet mill is changed from vertical to horizontal, and the height is greatly reduced. The horizontal type is about 40-50% of the vertical type. The larger the model, the more obvious the advantage.
In the horizontal fluidized bed jet mill, the gas-solid two-phase flow basically flows horizontally and spirally in the horizontal fluidized bed jet mill, so that the elbow in the system layout is reduced; the resistance is reduced, and the energy consumption is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a conventional vertical fluid bed jet mill;
FIG. 2 is a schematic view of a horizontal fluid bed jet mill according to the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic view of a conventional vertical fluidized bed jet mill. The traditional vertical fluidized bed jet mill comprises a crushing chamber, a transition chamber and a classification chamber which are communicated in the vertical direction; the air flow pipe is communicated with the crushing chamber through the spray pipe, and an air flow valve is arranged on the air flow pipe; the crushing chamber is communicated with the feeder, and a cleaning port is arranged below the crushing chamber; the upper part of the crushing chamber is communicated with the classifying chamber through a transition chamber, the classifying chamber comprises a classifying wheel, and the side surface of the classifying chamber is provided with an outlet; the upper part of the classifying chamber is connected with a classifying wheel driving motor through a coupling. The classifying wheel driving motor drives the classifying wheel to rotate.
The main principle of the traditional vertical fluidized bed jet mill is as follows: the purified and dried compressed air enters Laval nozzles at 3-4 opposite positions on a horizontal plane to form supersonic airflow, and enters a crushing chamber. The material entering the crushing chamber is accelerated by supersonic airflow to form high-speed moving gas-solid two-phase flow, which collides and shears each other at the intersection point; a high-speed two-phase fluidized bed state is formed in the pulverizer, so that superfine pulverizing is realized; and crushing the 60-mesh material particles into particles with the size of 2-40 microns. The particles are suspended or lifted under the action of air flow, and the particles meeting the volume and mass conditions are thrown out from the outlet under the action of the classifying wheel.
FIG. 2 is a schematic view of a horizontal fluid bed jet mill according to the present application. The horizontal fluidized bed jet mill comprises a crushing chamber, a transition chamber and a classification chamber, wherein the classification chamber comprises a classification wheel, and the crushing chamber, the transition chamber and the classification chamber are communicated in the horizontal direction; the separation plate is positioned between the crushing chamber and the transition chamber and separates the crushing chamber from the transition chamber; the separation plate is of a porous structure. The upper bottom of the inner wall connected with the crushing chamber and the transition chamber comprises a reflux plate; the reflux plate forms a slope, one end with a low position is positioned at the bottom of the crushing chamber, and one end with a high position is positioned at the communication position of the crushing chamber and the transition chamber.
As another embodiment of the reflux plate, the reflux plate is of a convex structure, the highest point is positioned at the communication position of the crushing chamber and the transition chamber, and the two ends are respectively positioned at the bottoms of the crushing chamber and the transition chamber.
Preferably, in the embodiment of the horizontal fluidized bed jet mill, the crushing chamber, the transition chamber and the classifying chamber are coaxial cylindrical structures and axially horizontal. Or the crushing chamber, the transition chamber and the classifying chamber are of cylindrical structures with parallel axial directions; the bottom of the crushing chamber is lower than the bottom of the transition chamber.
Further preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application, wherein the separation plate is net-shaped.
The fluidized bed jet mill is changed from vertical to horizontal, and the height is greatly reduced. This is not a simple fall-over, where there is an improvement in styling, layout, and zero. The operation mode of the crushing chamber of the fluidized bed is similar to that of the traditional fluidized bed crushing chamber, an airflow pipe is communicated with the crushing chamber through a spray pipe, and an airflow valve is arranged on the airflow pipe; the purified and dried compressed air enters Laval nozzles at 3-4 opposite positions on a horizontal plane to form supersonic airflow, and enters a crushing chamber. The material entering the crushing chamber is accelerated by supersonic airflow to form high-speed moving gas-solid two-phase flow, which collides and shears each other at the intersection point; a high-speed two-phase fluidized bed state is formed in the pulverizer, so that superfine pulverizing is realized; and crushing the 60-mesh material particles into particles with the size of 2-40 microns. The airflow carrying the particles passes through the separating plate and then runs rightwards; subsequently, under the action of the classifying wheel, the particles reaching the standard fly off the collector from the outlet; large particles which are not up to standard fall down and return to the pulverizer through the reflux device, and are continuously pulverized.
The horizontal fluidized bed jet mill changes the type of jet mill, designs and manufactures a separation plate and a reflux device for reflux, and runs smoothly under the interaction of the two parts.
The beneficial effect of this embodiment is that, in terms of height, the horizontal is about 40-50% of the vertical. The larger the model, the more obvious the advantage. In addition, the gas-solid two-phase flow basically flows horizontally and spirally in the horizontal fluidized bed jet mill, and the elbow in the system layout is reduced. The resistance is reduced, and the energy consumption is reduced.
Further preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application, wherein the transition chamber wall is provided with a viewing hole.
Still further preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application, wherein the mill chamber includes a feed port in an upper portion thereof and a purge port in a lower portion thereof. The feed inlet is used for conveying materials into the crushing chamber and can also be used for cleaning. When the cleaning is completed, the cleaning port is used for discharging waste liquid formed after the cleaning.
Still preferably, the horizontal fluid bed jet mill according to any one of the embodiments of the present application, wherein a classification wheel driving motor is horizontally connected to the classification chamber to drive the classification wheel; the upper part of the classifying chamber is an outlet.
Still preferably, the horizontal fluidized bed jet mill according to any one of the embodiments of the present application further includes a chute in a horizontal direction; the crushing chamber, the transition chamber and the grading chamber are integrally arranged in the chute through bolts. The horizontal fluidized bed jet mill has the further advantage that after the bolts are loosened, the cylinder body can slide on the sliding groove, so that the horizontal fluidized bed jet mill is rapid and convenient to clean.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (9)
1. A horizontal fluidized bed jet mill comprises a grinding chamber, a transition chamber and a classification chamber, wherein the classification chamber comprises a classification wheel,
the crushing chamber, the transition chamber and the classifying chamber are communicated in the horizontal direction;
the separation plate is positioned between the crushing chamber and the transition chamber and separates the crushing chamber from the transition chamber;
the separation plate is of a porous structure;
the upper bottom of the inner wall connected with the crushing chamber and the transition chamber comprises a reflux plate;
the reflux plate forms a slope, one end with a low position is positioned at the bottom of the crushing chamber, one end with a high position is positioned at the communication position of the crushing chamber and the transition chamber, or the reflux plate is of a convex structure, the highest point is positioned at the communication position of the crushing chamber and the transition chamber, and the two ends are respectively positioned at the bottoms of the crushing chamber and the transition chamber;
the air flow pipe is communicated with the crushing chamber through the spray pipe, and an air flow valve is arranged on the air flow pipe; the purified and dried compressed air enters the spray pipes at opposite positions on a horizontal plane to form supersonic airflow, and enters the crushing chamber.
2. The horizontal fluid bed jet mill of claim 1 further comprising a horizontally oriented chute; the crushing chamber, the transition chamber and the grading chamber are integrally arranged in the chute.
3. The horizontal fluid bed jet mill of claim 1, wherein,
the crushing chamber, the transition chamber and the classifying chamber are of coaxial cylindrical structures and axially horizontal.
4. The horizontal fluid bed jet mill of claim 1, wherein,
the crushing chamber, the transition chamber and the classifying chamber are of cylindrical structures with parallel axial directions;
the bottom of the crushing chamber is lower than the bottom of the transition chamber.
5. The horizontal fluid bed jet mill according to any one of claim 1 to 4,
the separation plate is net-shaped.
6. The horizontal fluid bed jet mill according to any one of claim 1 to 4,
and the transition chamber wall is provided with an observation hole.
7. The horizontal fluid bed jet mill of any one of claims 1 to 4, wherein the upper portion of the mill chamber comprises a feed inlet and the lower portion of the mill chamber comprises a purge inlet.
8. The horizontal fluid bed jet mill according to any one of claims 1 to 4, wherein a classifying wheel driving motor is horizontally connected to the classifying chamber to drive the classifying wheel; the upper part of the classifying chamber is an outlet.
9. The horizontal fluid bed jet mill according to claim 2, wherein the milling chamber, the transition chamber and the classifying chamber are integrally installed in the chute by bolts; after the bolts are loosened, the cylinder body slides on the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325060.0A CN108114793B (en) | 2017-12-13 | 2017-12-13 | Horizontal fluid bed jet mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325060.0A CN108114793B (en) | 2017-12-13 | 2017-12-13 | Horizontal fluid bed jet mill |
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| Publication Number | Publication Date |
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| CN108114793A CN108114793A (en) | 2018-06-05 |
| CN108114793B true CN108114793B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711325060.0A Active CN108114793B (en) | 2017-12-13 | 2017-12-13 | Horizontal fluid bed jet mill |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110193415A (en) * | 2019-05-09 | 2019-09-03 | 芜湖职业技术学院 | A kind of fluidized bed airflow pulverizer |
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| CN107029837A (en) * | 2017-04-27 | 2017-08-11 | 廊坊新龙立机械制造有限公司 | The novel gear ring structure and pulverizer of a kind of pulverizer |
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| CN207680748U (en) * | 2017-12-13 | 2018-08-03 | 廊坊新龙立机械制造有限公司 | A kind of horizontal type fluidized-bed airslide disintegrating mill |
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| EP0488637A2 (en) * | 1990-11-27 | 1992-06-03 | Xerox Corporation | A fluidized bed jet mill |
| EP1247582A2 (en) * | 2001-04-03 | 2002-10-09 | FISCHER, Josef | Apparatus for crushing bulk material |
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| CN203170447U (en) * | 2013-02-23 | 2013-09-04 | 仙桃市中星电子材料有限公司 | Titanium tetrachloride residue liquid separating centrifugal machine |
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| CN108114793A (en) | 2018-06-05 |
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