CN202114009U - Double-division type grader with internally tangent impellers - Google Patents
Double-division type grader with internally tangent impellers Download PDFInfo
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- CN202114009U CN202114009U CN2011201694806U CN201120169480U CN202114009U CN 202114009 U CN202114009 U CN 202114009U CN 2011201694806 U CN2011201694806 U CN 2011201694806U CN 201120169480 U CN201120169480 U CN 201120169480U CN 202114009 U CN202114009 U CN 202114009U
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Abstract
The utility model discloses a double-division type grader with internally tangent impellers, comprising a grading cylindrical shell. The upper end face of the grading cylindrical shell is provided with a grading upper cylinder, and a motor and a bearing housing are arranged on the grading upper cylinder. The bearing housing is provided with an impeller shaft driven by the motor, and the lower end of the impeller shaft is provided with grading impellers. One side of the grading upper cylinder is connected to a first air-guiding pipeline. The bearing housing is sleeved by a division sleeve. An inner grading region is formed by the inner wall of the division sleeve and the outer wall of the bearing housing, and an outer grading region is formed by the outer wall of the division sleeve and a hollow cavity formed in the inner cavity of the grading upper cylinder. A connection hole is disposed at the approximately middle portion of the division sleeve. A connection pipeline opening is disposed at the grading upper cylinder corresponding to the connection hole. The connection hole is provided with a second air-guiding pipeline passing through the connection pipeline opening. The double-division type grader is advantageous in that powder materials can be divided into three particle sizes only by using one grader; the double-division type grader is simple in structure, small in occupation area and investment and good in energy conservation.
Description
Technical field
The utility model relates to a kind of powder material grader.
Background technology
In dry method powder processing industry, commonly used to gas flow sizing machine, its cardinal principle is to lean on the centrifugal action of classifying turbine.When impeller by the rotation of certain rotating speed, air-flow carry material particles from the classifying turbine gap through the time, larger particles is dished out by centrifugal action.Have only fine grained (because centrifugal force is less) to get in the classifying turbine chamber through graded blade, get into next link then and collect, the bulky grain of dishing out is drawn off after the cylindrical shell sedimentation.Thereby, be divided into two kinds of compositions of thickness to the material that mixes.In the impeller classification process; Because impeller rotates by certain rotating speed; So get into the air-flow and particle (gas-solid two is mutually) of classifying turbine inner chamber, still have the inertia of rotation, that is to say that particle is rotating flows out the classifying turbine inner chamber and gets into next link.Therefore; Classifying turbine inner chamber radially size distribution characteristics is: distance center radius bulky grain more is thick more; But this specific character is not able to utilize; Promptly existing powder material grader can only be divided into two kinds of compositions of thickness with powder material, and can not powder material be divided into three kinds of granularities with a grader.In actual production, there are a lot of products not only to require certain fineness, but also require to come out particle separation thinner in this fine powder, often need again the method for classification to realize in the production.
Summary of the invention
The technical problem that the utility model will solve provides the impeller inscribe double-division type grader that grader of a kind of usefulness is divided into powder material three kinds of granularities.
For solving the problems of the technologies described above, the utility model comprises the classification cylindrical shell, and its upper surface is equipped with classification upper end tube; On the tube of classification upper end motor is installed; On the tube of classification upper end the bearing holder (housing, cover) of stretching is installed down, is equipped with in the bearing holder (housing, cover) by motor-driven impeller shaft, the impeller shaft lower end is equipped with classifying turbine; Classification upper end tube one side is connected with the first air inducing pipeline; Classification cylindrical shell bottom is provided with the feeding pipe that inserts into the inner the chamber, and its design feature is on bearing holder (housing, cover), to be set with to cut apart cover, and the said cavity of cutting apart cover inwall and the formation of bearing holder (housing, cover) outer wall constitutes the internal classification district; The said cavity of cutting apart cover outer wall and the tube inner chamber formation of classification upper end constitutes outer graded region, and outer graded region is communicated with the described first air inducing pipeline; Overlap roughly that the middle part has connecting hole cutting apart; Classification upper end tube corresponding to this connecting hole is provided with the tube connector road junction; Described connecting hole is provided with the second air inducing pipeline that passes described tube connector road junction, described second air inducing pipeline and described tube connector road junction encapsulation process.
It is described that to cut apart cover roughly concordant with a lower surface, described classification upper end.
Described cut apart between cover 8 inwalls and bearing holder (housing, cover) 11 outer walls radial clearance with cut apart on cover 8 outer walls and the classification radial clearance between 7 charging aperture about equally.
Described connecting hole has internal thread hole, and described second air inducing pipeline the inner is provided with external screw thread accordingly.
The described cover of cutting apart is through being bolted on the flange on the bearing holder (housing, cover).
On the first air inducing pipeline, be provided with first adjusting valve, on the second air inducing pipeline, be provided with second adjusting valve.
Described tube connector road junction is provided with the end face flange, is set with the enlarging rubber tube on the described second air inducing pipeline, and enlarging rubber tube one end is fixed on through flange on the end face flange at tube connector road junction, and the other end is fixed on the second air inducing pipeline through clip.
The described cover outer wall lower end wall of cutting apart is thin bladed.
After adopting said structure; Owing on bearing holder (housing, cover), be set with and cut apart cover; Cut apart the cavity formation internal classification district that cover inwall and bearing holder (housing, cover) outer wall form; Cut apart the outer graded region of cavity formation that cover outer wall and classification upper end tube inner chamber forms; Cutting apart the second air inducing pipeline that is provided with the tube connector road junction that passes on the connecting hole that overlaps middle part roughly, like this will through classifying turbine be divided into thin and thinner two kinds of products again at tube place, classification upper end than fine grained, thereby realized powder material being classified into three kinds of different grain sizes with a grader.The rotating speed that simultaneously we can be through regulating classifying turbine and two adjusting valves are regulated the yield rate of three kinds of different grain size products; Thereby realized secondary classification to material with a grader; It is simple in structure, occupation area of equipment is little, and small investment, energy-conservation.
Description of drawings
Describe in further detail below in conjunction with the specific embodiment of accompanying drawing the utility model:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A broken section enlarged drawing of Fig. 1.
The specific embodiment
With reference to accompanying drawing, this impeller inscribe double-division type grader comprises classification cylindrical shell 3, and its upper surface is equipped with classification upper end tube 7; Tube 7 upper surfaces, classification upper end are equipped with motor cabinet 12; Motor 14 is installed on the motor cabinet 12, on the classification upper end tube 7 bearing holder (housing, cover) of stretching 11 is installed down, impeller shaft 5 is installed in the bearing holder (housing, cover) 11; Impeller shaft 5 upper ends are connected with motor 14 through shaft coupling 13; The lower end is equipped with classifying turbine 4, and classifying turbine 4 drives its rotation by motor 14, and classifying turbine 4 is positioned at classification cylindrical shell 3 top of chamber; The upper surface of classifying turbine 4 top rings and tube 7 lower surfaces, classification upper end have minim gap, and classifying turbine 4 top ring internal diameters equate with classification upper end tube 7 lower surface internal diameters.Tube 7 one sides are connected with the first air inducing pipeline, 10, the first air inducing pipelines 10 and are provided with first adjusting valve 9 in the classification upper end.Awl tube place, classification cylindrical shell 3 bottoms is provided with the feeding pipe 2 that inserts into the inner the chamber, and the bottom is connected with discharge valve 1 through bolt.On bearing holder (housing, cover) 11, be set with and cut apart cover 8, cut apart cover 8 through being bolted on the flange on the bearing holder (housing, cover) 11, it is roughly concordant with tube 7 lower surfaces, classification upper end to cut apart cover 8, cuts apart cover 8 outer wall lower end walls and is thin bladed.Cut apart cover 8 classification upper end tube 7 charging apertures are divided into radially two parts about equally; Promptly cut apart between cover 8 inwalls and bearing holder (housing, cover) 11 outer walls radial clearance with cut apart on cover 8 outer walls and the classification radial clearance between 7 charging aperture about equally; Constitute internal classification district 21 by cutting apart the cavity that cover 8 inwalls and bearing holder (housing, cover) 11 outer walls form; Cut apart the outer graded region 6 of cavity formation that cover 8 outer walls and classification upper end tube 7 inner chambers form, outer graded region 6 is communicated with the first air inducing pipeline 10.Roughly have connecting hole in the middle part cutting apart cover 8, be provided with tube connector road junction 15 corresponding to the classification of this connecting hole upper end tube 7, connecting hole is provided with the second air inducing pipeline 20 that passes described tube connector road junction 15; This connecting hole has internal thread hole; The second air inducing pipeline, 20 the inners are provided with external screw thread accordingly, on the second air inducing pipeline 20, are provided with second adjusting valve, 19, the second air inducing pipelines 20 and tube connector road junction 15 encapsulation process; Its mode of being tightly connected is on tube connector road junction 15, to be provided with the end face flange; Be set with enlarging rubber tube 17 on the second air inducing pipeline 20, enlarging rubber tube 17 1 ends are fixed on through flange 16 on the end face flange at tube connector road junction 15, and the other end is fixed on the second air inducing pipeline 20 through clip 18; The first air inducing pipeline 10 and the second air inducing pipeline 20 are oppositely arranged, and also can adjacently be provided with.
This machine in use, classifying turbine 4 is by certain rotating speed rotation, the first air inducing pipeline 10 and the second air inducing pipeline 20 all are in the negative pressure induced wind state.Material gets into classification cylindrical shell 3 by feeding pipe 2 and arrives classifying turbine 4; During through classifying turbine 4; The larger particles meal is dished out by centrifugal action; The bulky grain meal of dishing out is drawn off by discharge valve 1 after 3 sedimentations of classification cylindrical shell, has only certain fine grained (because centrifugal force is less) to get in classifying turbine 4 chambeies through graded blade, and keeps the inertia of rotation.Therefore, the fine grained in the classifying turbine inner chamber radially size distribution characteristics is: fine powder will be distributed in the skin of air-flow, and more fine powder is distributed in air-flow heart portion.The internal classification district 21 of tube 7 inside, classification upper end and outer graded region 6 are with cutting apart through cutting apart cover 8 layerings with the up fine powder body material of swirling eddy in classifying turbine 4 inner chambers; More fine powder after cutting apart flows out through the second air inducing pipeline 20, and fine powder flows out through the first air inducing pipeline 10.Thereby, reached with a grader (classifying turbine) and told simultaneously slightly, carefully and the purpose of the product of thinner three kinds of granularities.Simultaneously, we can regulate meal, fine powder and the more granularmetric composition of fine powder through the rotating speed of regulating first adjusting valve 9, second adjusting valve 19 and changing classifying turbine 4.
Claims (8)
1. impeller inscribe double-division type grader; Comprise classification cylindrical shell (3); Its upper surface is equipped with classification upper end tube (7), on the classification upper end tube (7) motor (14) is installed, and on the classification upper end tube (7) bearing holder (housing, cover) of stretching (11) is installed down; The impeller shaft (5) that is driven by motor (14) is installed in the bearing holder (housing, cover) (11); Impeller shaft (5) lower end is equipped with classifying turbine (4), and classification upper end tube (7) one sides are connected with the first air inducing pipeline (10), and classification cylindrical shell (3) bottom is provided with the feeding pipe (2) that inserts into the inner the chamber; It is characterized in that on bearing holder (housing, cover) (11), being set with and cut apart cover (8); The said cavity of cutting apart cover (8) inwall and the formation of bearing holder (housing, cover) (11) outer wall constitutes internal classification district (21), the said cavity formation outer graded region (6) of cutting apart cover (8) outer wall and tube (7) inner chamber formation of classification upper end, and outer graded region (6) is communicated with the described first air inducing pipeline (10); Roughly have connecting hole in the middle part cutting apart cover (8); Classification upper end tube (7) corresponding to this connecting hole is provided with tube connector road junction (15); Described connecting hole is provided with the second air inducing pipeline (20) that passes described tube connector road junction (15), described second air inducing pipeline (20) and described tube connector road junction (15) encapsulation process.
2. impeller inscribe double-division type grader according to claim 1 is characterized in that described to cut apart cover (8) roughly concordant with tube (7) lower surface, described classification upper end.
3. impeller inscribe double-division type grader according to claim 1 and 2, it is characterized in that described cut apart the radial clearance between cover (8) inwall and bearing holder (housing, cover) (11) outer wall and cut apart cover (8) outer wall and classification upper end tube (7) charging aperture between radial clearance about equally.
4. impeller inscribe double-division type grader according to claim 1 and 2 is characterized in that described connecting hole has internal thread hole, and described second air inducing pipeline (20) the inner is provided with external screw thread accordingly.
5. impeller inscribe double-division type grader according to claim 1 and 2 is characterized in that the described cover (8) of cutting apart is through being bolted on the flange on the bearing holder (housing, cover) (11).
6. impeller inscribe double-division type grader according to claim 1 and 2 is characterized in that on the first air inducing pipeline (10), being provided with first adjusting valve (9), on the second air inducing pipeline (20), is provided with second adjusting valve (19).
7. impeller inscribe double-division type grader according to claim 1 and 2; It is characterized in that described tube connector road junction (15) is provided with the end face flange; Be set with enlarging rubber tube (17) on the described second air inducing pipeline (20); Enlarging rubber tube (17) one ends are fixed on through flange (16) on the end face flange at tube connector road junction (15), and the other end is fixed on the second air inducing pipeline (20) through clip (18).
8. impeller inscribe double-division type grader according to claim 1 and 2 is characterized in that described cover (8) the outer wall lower end wall of cutting apart is thin bladed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201694806U CN202114009U (en) | 2011-05-25 | 2011-05-25 | Double-division type grader with internally tangent impellers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201694806U CN202114009U (en) | 2011-05-25 | 2011-05-25 | Double-division type grader with internally tangent impellers |
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| Publication Number | Publication Date |
|---|---|
| CN202114009U true CN202114009U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201694806U Expired - Lifetime CN202114009U (en) | 2011-05-25 | 2011-05-25 | Double-division type grader with internally tangent impellers |
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| Country | Link |
|---|---|
| CN (1) | CN202114009U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205318A (en) * | 2011-05-25 | 2011-10-05 | 潍坊市精华粉体工程设备有限公司 | Impeller internally tangent bipartite classifier |
| CN109351459A (en) * | 2018-11-30 | 2019-02-19 | 福建龙亿粉体装备制造有限公司 | A kind of vertical particle classifying mechanism and grading plant with more stage units |
-
2011
- 2011-05-25 CN CN2011201694806U patent/CN202114009U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205318A (en) * | 2011-05-25 | 2011-10-05 | 潍坊市精华粉体工程设备有限公司 | Impeller internally tangent bipartite classifier |
| CN109351459A (en) * | 2018-11-30 | 2019-02-19 | 福建龙亿粉体装备制造有限公司 | A kind of vertical particle classifying mechanism and grading plant with more stage units |
| CN109351459B (en) * | 2018-11-30 | 2024-05-31 | 福建龙亿粉体装备制造有限公司 | Vertical powder grading mechanism with multiple grading units and grading device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120118 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |