CN2695103Y - Steel ball automatic screening machine used for steel ball coal mill - Google Patents
Steel ball automatic screening machine used for steel ball coal mill Download PDFInfo
- Publication number
- CN2695103Y CN2695103Y CN 03231995 CN03231995U CN2695103Y CN 2695103 Y CN2695103 Y CN 2695103Y CN 03231995 CN03231995 CN 03231995 CN 03231995 U CN03231995 U CN 03231995U CN 2695103 Y CN2695103 Y CN 2695103Y
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- CN
- China
- Prior art keywords
- steel ball
- tube
- bipyramid
- external conical
- coal mill
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- Expired - Fee Related
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Abstract
The utility model relates to a steel ball automatic screening machine used for a steel ball coal mill and is characterized in that which comprises a steel ball collecting device, a bipyramid cylinder, a flange, an outer cone canister, a screw grid and a check ring. The steel ball collecting device is arranged in a roller; the steel ball collecting device is connected with the bipyramid cylinder; the screw grid is arranged outside of the cone canister; the flange is connected with the bipyramid cylinder, the outer cone canister and the screw grid; the bipyramid cylinder, the outer cone canister and the screw grid are concentric circles, rotating following with the roller; the check ring is positioned on the outside of the outer cone canister and arranged on the screw grid. The utility model has the advantages that the equipment is simple; when the steel ball is automatically unloaded, the sized steel balls are separated; the efficiency for screening the steel balls is increased; the labor intensity of the worker is reduced; the field assembly and demounting are convenient.
Description
Technical field
The utility model relates to a kind of steel ball that is used for low speed coal mill and sifts out machine automatically, can be used for the station boiler low speed coal mill and changes usefulness when selecting steel ball, belongs to station boiler low speed coal mill complete auxiliaries technical field.
Background technology
The low speed coal mill that has a large amount of various models in the many thermal power plants of China, when need are changed steel ball in the low speed coal mill, open the window below the coal pulverizer cylinder, steel ball when cylinder rotates by centrifugal force be thrown out of outside window the tube in, then by manually screening and drawing off, such screening technique labour intensity is big, and efficient is low.
Summary of the invention
The purpose of this utility model is a kind of efficient of sifting out steel ball in power plant's low speed coal mill that improves of invention, and the steel ball that is used for low speed coal mill that alleviates labor strength sifts out machine automatically.
For realizing above purpose, the technical solution of the utility model provides a kind of steel ball that is used for low speed coal mill and sifts out machine automatically, its characteristics are, form by steel ball gatherer, bipyramid tube, flange, external conical-tube, spiral grid, back-up ring, the steel ball gatherer places in the cylinder, the steel ball gatherer is connected with the bipyramid tube, the spiral grid places in the external conical-tube, flange connects bipyramid tube and external conical-tube and spiral grid, bipyramid tube, external conical-tube and spiral grid are concentric circles, and with the cylinder rotation, back-up ring is positioned at the external conical-tube outside, places on the spiral grid.
The deadweight difference of big small ball when the utility model utilizes the rotation of coal pulverizer cylinder, the centrifugal force difference comes steel ball is carried out automatic screening and draws off, need change when selecting steel ball, in the coal pulverizer cylinder, install steel ball and sift out machine automatically, when coal pulverizer turns round, rotation by the coal pulverizer cylinder, big small ball in the tube will enter the steel ball gatherer, because the deadweight of steel ball relation, big small ball enters the spiral grid along the direction of steel ball collector wall by the bipyramid tube, the spiral grid is owing to rotate with the coal pulverizer cylinder, just as a big screen cloth, nonconforming small ball is fallen external conical-tube by screening discharges, the big steel ball that do not go down of sieve is thrown away by the spiral grid, because the spiral grid is than outer cone tube length, the steel ball of Xu Yaoing has also separated in discharge with unwanted steel ball like this, after the coal pulverizer steel ball is finished changing, pull down steel ball again and sift out machine automatically.The utility model can realize that coal pulverizer unloads steel ball and carries out simultaneously with the work of screening steel ball twice, simplified the change the outfit operation of steel ball of coal pulverizer.
The equipment that the utility model has the advantages that is simple, when drawing off steel ball automatically again sorting big small ball, improved the efficient of sifting out steel ball, alleviated working strength of workers, assembled in situ, convenient disassembly.
Description of drawings
Fig. 1 is that the steel ball that is used for low speed coal mill sifts out the machine structural representation automatically;
Fig. 2 is a steel ball collector structure schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model is selected for use and sifted out machine automatically with the matching used steel ball that is used for low speed coal mill of 380/720 type coal pulverizer is example.
As shown in Figure 1, for the steel ball that is used for low speed coal mill sifts out the machine structural representation automatically, form by steel ball gatherer 1, bipyramid tube 2, flange 3, external conical-tube 4, spiral grid 5, back-up ring 6.
Select for use 16 manganese steel to make steel ball gatherer 1, bipyramid tube 2, flange 3, external conical-tube 4, spiral grid 5, back-up ring 6.
Steel ball gatherer 1 receives by two sections that ball grooves 7, side connect circle 8, support 9 is formed, receiving ball groove 7 sectional dimensions is 500 * 385mm, two sections grooves connect with flange, the side meets circle 8 diameter 385mm, it is 267mm that the side connects circle 8 top tapered height, receives ball groove 7 and is welded to connect with square circle 8 usefulness that connect, and support 9 is chevron shaped, long is 1600mm, and support 9 sides of being welded in connect the next door of circle 8.
Bipyramid tube 2, external conical-tube 4, spiral grid 5 are the circular cone build, be concentric circles, bipyramid tube 2 one end diameters are 385mm, and other end diameter is 937mm, and long is 1688mm, external conical-tube 4 one end diameters are 1029mm, other end diameter is 1657mm, and long is 1455mm, and spiral grid 5 one end diameters are 1852mm, spiral grid 5 is longer than external conical-tube 4, and the pitch of spiral grid 5 is 28mm.
During the coal pulverizer overhaul, the support of steel ball gatherer is installed in the inner face of cylinder 10 with bolt, by flange steel ball gatherer 1 is connected with bipyramid tube 2 then, spiral grid 5 packs into back flange 3 connection bipyramid tubes 2 in the external conical-tube 4, notice during installation that bipyramid tube 2, external conical-tube 4 and spiral grid 5 are concentric circles, back-up ring 6 is contained in the external conical-tube outside, is positioned on the spiral grid 5.
Claims (3)
1. a steel ball that is used for low speed coal mill sifts out machine automatically, it is characterized in that, by steel ball gatherer (1), bipyramid tube (2), flange (3), external conical-tube (4), spiral grid (5), back-up ring (6) is formed, the steel ball gatherer places in the cylinder (10), steel ball gatherer (1) is connected with bipyramid tube (2), spiral grid (5) places in the external conical-tube (4), flange (3) connects bipyramid tube (2) and external conical-tube (4) and spiral grid (5), bipyramid tube (2), external conical-tube (4) and spiral grid (5) are concentric circles, and rotate with cylinder (10), back-up ring (6) is positioned at the external conical-tube outside, places (5) on the spiral grid.
2. the steel ball of low speed coal mill according to claim 1 sifts out machine automatically, it is characterized in that, described steel ball gatherer (1) receives by several sections that ball grooves (7), side connect circle (8), support (9) is formed, receive ball groove (7) for several sections that link together and be connected with the square circle (8) that connects, support (9) side of placing connects the next door of circle (8).
3. the steel ball of low speed coal mill according to claim 1 sifts out machine automatically, it is characterized in that, described spiral grid (5) is longer than external conical-tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231995 CN2695103Y (en) | 2002-09-19 | 2003-06-11 | Steel ball automatic screening machine used for steel ball coal mill |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02260091 | 2002-09-19 | ||
| CN02260091.4 | 2002-09-19 | ||
| CN 03231995 CN2695103Y (en) | 2002-09-19 | 2003-06-11 | Steel ball automatic screening machine used for steel ball coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695103Y true CN2695103Y (en) | 2005-04-27 |
Family
ID=34796088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231995 Expired - Fee Related CN2695103Y (en) | 2002-09-19 | 2003-06-11 | Steel ball automatic screening machine used for steel ball coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695103Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921624A (en) * | 2012-11-06 | 2013-02-13 | 河南博奥建设股份有限公司 | Automatic screening machine for steel balls |
| CN103331195A (en) * | 2013-06-13 | 2013-10-02 | 吴江市物华五金制品有限公司 | Sanding machine capable of automatically screening ground beads |
| CN104162516A (en) * | 2014-08-26 | 2014-11-26 | 无锡明珠钢球有限公司 | Steel ball screening machine |
| CN108686952A (en) * | 2018-06-06 | 2018-10-23 | 辽宁科技大学 | Device for particle characteristics of motion research |
-
2003
- 2003-06-11 CN CN 03231995 patent/CN2695103Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921624A (en) * | 2012-11-06 | 2013-02-13 | 河南博奥建设股份有限公司 | Automatic screening machine for steel balls |
| CN102921624B (en) * | 2012-11-06 | 2016-05-25 | 河南博奥建设有限公司 | Steel ball automatic screening machine |
| CN103331195A (en) * | 2013-06-13 | 2013-10-02 | 吴江市物华五金制品有限公司 | Sanding machine capable of automatically screening ground beads |
| CN104162516A (en) * | 2014-08-26 | 2014-11-26 | 无锡明珠钢球有限公司 | Steel ball screening machine |
| CN108686952A (en) * | 2018-06-06 | 2018-10-23 | 辽宁科技大学 | Device for particle characteristics of motion research |
| CN108686952B (en) * | 2018-06-06 | 2023-09-12 | 辽宁科技大学 | Device for researching particle motion law |
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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 |