CN204074172U - A kind of abrasion-proof steel ball coal pulverizer - Google Patents
A kind of abrasion-proof steel ball coal pulverizer Download PDFInfo
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- CN204074172U CN204074172U CN201420551639.4U CN201420551639U CN204074172U CN 204074172 U CN204074172 U CN 204074172U CN 201420551639 U CN201420551639 U CN 201420551639U CN 204074172 U CN204074172 U CN 204074172U
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- coal
- steel ball
- cylinder
- crushing rod
- coal pulverizer
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Abstract
The utility model discloses a kind of abrasion-proof steel ball coal pulverizer, comprise coal-grinding cylinder, enter device for coal, air-blast device, the two ends of coal-grinding cylinder are coal feed point and coal outlet respectively, and coal feed point connects into device for coal and air-blast device, and coal-grinding cylinder arranges a discharge; Coal-grinding cylinder comprises cylindrical shell and cylinder chamber, cylinder inboard wall connects the steel ball that several diameters are different, and described steel ball is connected with inwall by crushing rod, and the connected steel ball size of length of crushing rod is proportional.The coal pulverizer structure that the utility model provides is simple, designs ingenious, and broken coal is effective, and the coal pulverizer of ball consumption and power consumption ratio routine is little.
Description
Technical field
The utility model relates to a kind of abrasion-proof steel ball coal pulverizer.
Background technology
At present, low speed coal mill obtains and applies more widely in China's thermal power generation unit, and low speed coal mill coal adaptability is wide, safe and reliable to operation, easy to maintenance.But its metal consumption is large, and powder process power consumption is high, according to statistics, the wearing and tearing that low speed coal mill generally often grinds 1t coal steel ball are 300 ~ 350 g, indivedual coal pulverizer is even higher, adds the wearing and tearing of lining plate of coal grinder, and it is usual about up to 0.5 ‰ that total metal damages the ratio grinding coal with institute.In conjunction with performance parameter and the coal characteristic of China's low speed coal mill, prepare that a kind of coal-grinding is effective, the coal pulverizer of the ball consumption that simultaneously can reduce ball mill and power consumption seems most important.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of novel abrasion-proof steel ball coal pulverizer.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of abrasion-proof steel ball coal pulverizer, comprises coal-grinding cylinder, enters device for coal, air-blast device, and the two ends of coal-grinding cylinder are coal feed point and coal outlet respectively, and coal feed point connects into device for coal and air-blast device, and coal-grinding cylinder arranges a discharge; Coal-grinding cylinder comprises cylindrical shell and cylinder chamber, cylinder inboard wall connects the steel ball that several diameters are different, and described steel ball is connected with inwall by crushing rod, and the connected steel ball size of length of crushing rod is proportional.
Described enter device for coal comprise coal chute and auger conveyor, coal chute is connected with auger conveyor, and auger conveyor is connected with the coal feed point of coal-grinding cylinder, and coal chute top is funnel type entrance.
Air-blast device comprises pressure fan and air-supply passage composition.
The diameter of steel ball comprises 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm.
Preferably, the length of crushing rod is 0.8-1.2 times of the steel ball size that it connects.The structural benefit of such design is, large ball, above, for the coal of broken bulk, becomes fritter, continues to collide with bead below after the coal fragmentation of bulk, the crushing rod is simultaneously connected with steel ball and play the effect of broken coal cinder.
Best, the length of crushing rod is 1 times of the steel ball size that it connects.The material of crushing rod can be identical with steel ball.
Preferably, the steel ball of different-diameter arranges in regular mode on cylinder inboard wall.The arrangement mode of steel ball is the important technical that the utility model reaches that the best carries out effect, and the utility model provides following 2 arrangement modes.
One, with the vertical section of cylindrical shell for benchmark, the steel ball arrangement regulation of different-diameter is large to partial circulating arrangement for having.
Two, with the vertical section of cylindrical shell for benchmark, the steel ball arrangement regulation of different-diameter littlely to arrange to arrive greatly partial circulating again for having.
Further, crushing rod is fixed on cylinder inboard wall with certain angle of inclination.Crushing rod inclined design can strengthen the collision effect of coal cinder and steel ball.The angle of inclination of crushing rod and cylinder inboard wall is 20-45 degree.Preferably, the angle of inclination of crushing rod and cylinder inboard wall is 30 degree.
The beneficial effects of the utility model:
The coal pulverizer structure that the utility model provides is simple, designs ingenious, and broken coal is effective, and the coal pulverizer of ball consumption and power consumption ratio routine is little.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 of the present utility modelly cuts off rear structural representation along A-A direction.
Fig. 4 is that the utility model embodiment 2 cuts off rear structural representation along A-A direction.
Fig. 5 is the utility model embodiment 3 structural representation.
In figure, 1 cylindrical shell, 2 chambeies, 3 coal feed points, 4 coal outlets, 5 steel balls, 6 crushing rods, 7 discharges, 8 funnel type entrances, 9 coal chutes, 10 auger conveyors, 11 pressure fan, 12 air-supply passages.
Detailed description of the invention
Embodiment 1
Shown in Fig. 1 and 3, a kind of abrasion-proof steel ball coal pulverizer that the present embodiment provides, comprises coal-grinding cylinder, enters device for coal, air-blast device, and the two ends of coal-grinding cylinder are coal feed point and coal outlet respectively, coal feed point connects into device for coal and air-blast device, and coal-grinding cylinder arranges a discharge; Coal-grinding cylinder comprises cylindrical shell and cylinder chamber, cylinder inboard wall connects the steel ball that several diameters are different, and described steel ball is connected with inwall by crushing rod, and the connected steel ball size of length of crushing rod is proportional.
Described enter device for coal comprise coal chute and auger conveyor, coal chute is connected with auger conveyor, and auger conveyor is connected with the coal feed point of coal-grinding cylinder, and coal chute top is funnel type entrance.
Air-blast device comprises pressure fan and air-supply passage composition.
The diameter of steel ball comprises 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm.
The length of crushing rod is 1 times of the steel ball size that it connects.
The steel ball of different-diameter arranges in regular mode on cylinder inboard wall.With the vertical section of cylindrical shell for benchmark, the steel ball arrangement regulation of different-diameter is little of arriving greatly partial circulating arrangement again for having.
Further, crushing rod is fixed on cylinder inboard wall with certain angle of inclination.Crushing rod inclined design can strengthen the collision effect of coal cinder and steel ball.The angle of inclination of crushing rod and cylinder inboard wall is 20-45 degree.Preferably, the angle of inclination of crushing rod and cylinder inboard wall is 30 degree.
Embodiment 2
Shown in Fig. 2 and Fig. 4, the abrasion-proof steel ball coal pulverizer that the present embodiment provides, identical with embodiment 1, unlike, the arrangement mode of steel ball is: with the vertical section of cylindrical shell for benchmark, and the steel ball arrangement regulation of different-diameter is large to partial circulating arrangement for having.
Embodiment 3
Shown in Fig. 5, the abrasion-proof steel ball coal pulverizer that the present embodiment the provides place different from above-described embodiment is that crushing rod is fixed on cylinder inboard wall with certain angle of inclination.The angle of inclination of crushing rod and cylinder inboard wall is 20-45 degree.Preferably, the angle of inclination of crushing rod and cylinder inboard wall is 30 degree.
Claims (10)
1. an abrasion-proof steel ball coal pulverizer, comprises coal-grinding cylinder, enters device for coal, air-blast device, and the two ends of coal-grinding cylinder are coal feed point and coal outlet respectively, and coal feed point connects into device for coal and air-blast device, and coal-grinding cylinder arranges a discharge; Coal-grinding cylinder comprises cylindrical shell and cylinder chamber, it is characterized in that, cylinder inboard wall connects the steel ball that several diameters are different, and described steel ball is connected with inwall by crushing rod, and the connected steel ball size of length of crushing rod is proportional.
2. coal pulverizer according to claim 1, is characterized in that, described in enter device for coal and comprise coal chute and auger conveyor, coal chute is connected with auger conveyor, and auger conveyor is connected with the coal feed point of coal-grinding cylinder, and coal chute top is funnel type entrance.
3. coal pulverizer according to claim 1, is characterized in that, air-blast device comprises pressure fan and air-supply passage composition.
4. coal pulverizer according to claim 1, is characterized in that, the diameter of steel ball comprises 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm.
5. coal pulverizer according to claim 4, is characterized in that, the length of crushing rod is 0.8-1.2 times of the steel ball size that it connects.
6. coal pulverizer according to claim 1, is characterized in that, the steel ball of different-diameter arranges in regular mode on cylinder inboard wall.
7. coal pulverizer according to claim 6, is characterized in that, with the vertical section of cylindrical shell for benchmark, the steel ball arrangement regulation of different-diameter is large to partial circulating arrangement for having.
8. coal pulverizer according to claim 6, is characterized in that, with the vertical section of cylindrical shell for benchmark, the steel ball arrangement regulation of different-diameter is little of arriving greatly partial circulating arrangement again for having.
9. coal pulverizer according to claim 1, is characterized in that, crushing rod is fixed on cylinder inboard wall with certain angle of inclination.
10. coal pulverizer according to claim 8, is characterized in that, the angle of inclination of crushing rod and cylinder inboard wall is 20-45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551639.4U CN204074172U (en) | 2014-09-25 | 2014-09-25 | A kind of abrasion-proof steel ball coal pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551639.4U CN204074172U (en) | 2014-09-25 | 2014-09-25 | A kind of abrasion-proof steel ball coal pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204074172U true CN204074172U (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420551639.4U Active CN204074172U (en) | 2014-09-25 | 2014-09-25 | A kind of abrasion-proof steel ball coal pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204074172U (en) |
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2014
- 2014-09-25 CN CN201420551639.4U patent/CN204074172U/en active Active
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 266000 Shandong province Qingdao City, No. 20 Lianyungang Road, 7080 square No. 3 Building 16 layer Patentee after: Qingdao Chutian energy saving technology Limited by Share Ltd Address before: 266000 Shandong province Qingdao City, No. 20 Lianyungang Road, 7080 square No. 3 Building 16 layer Patentee before: Qingdao Chutian Energy-saving Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 266000 Shandong province Qingdao City, Kunshan Road No. 17 Patentee after: Qingdao Chutian energy saving technology Limited by Share Ltd Address before: 266000 Shandong province Qingdao City, No. 20 Lianyungang Road, 7080 square No. 3 Building 16 layer Patentee before: Qingdao Chutian energy saving technology Limited by Share Ltd |