CN202224216U - Steel ball feeding device of low-speed coal mill - Google Patents
Steel ball feeding device of low-speed coal mill Download PDFInfo
- Publication number
- CN202224216U CN202224216U CN2011202403850U CN201120240385U CN202224216U CN 202224216 U CN202224216 U CN 202224216U CN 2011202403850 U CN2011202403850 U CN 2011202403850U CN 201120240385 U CN201120240385 U CN 201120240385U CN 202224216 U CN202224216 U CN 202224216U
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- steel ball
- rotating disk
- hole
- base plate
- bottom plate
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Abstract
The utility model relates to the technical field of low-speed coal mills, in particular to a steel ball feeding device of a low-speed coal mill, which comprises a hoisting device, a steel ball hopper, a rotary table and a driving device, wherein a bottom plate is arranged at the bottom of the steel ball hopper; a conical lug is arranged at the center of the bottom plate; through holes are distributed in the bottom plate along the outer side of the lug, and are arranged in the shape of a single circular ring; and the diameter of each through hole is 30cm-50cm larger than the diameter of the fed steel ball. The rotary plate is arranged below the bottom plate of the steel ball hopper and is movably connected with the bottom plate, another through holes are distributed in the rotary plate, and correspond to the through holes in the bottom plate in sizes and positions, the rotary plate is connected with the driving device, and a pipeline communicated with the coal mill is arranged below the rotary plate. The steel ball feeding device can realize the purpose that steel ball can be fed continuously by small amount, and has the advantages of being reasonable in structure, simple and convenient in operation, time-saving, effort-saving and high in automatic degree.
Description
Technical field
The utility model relates to a kind of technical field of low speed coal mill, specifically a kind of steel ball adding apparatus of low speed coal mill.
Background technology
Low speed coal mill is the main equipment of heat power station coal dust preparation system.Simultaneously also be applicable to pulverized coal preparation systems such as cement industry, metallurgical industry, chemical industry, sugar industry, be widely used in the coal of pulverizing various hardness.Its effect is with coal cinder drying, the fragmentation of certain size and grinds into coal dust for giving boiler combustion.At present low speed coal mill adds the general branch of steel ball and adds for two to three times, adds 30% to 50% of steel ball total amount at every turn, and in the coal-grinding process, steel ball constantly is worn, and the steel ball amount constantly reduces, and small ball is on the increase in the cylindrical shell, and pulverizer capacity is reduced.So the number of times of the adding that is in operation at present is very few, can not satisfy the production needs, cause the steel ball waste high; Cost improves, and adds indegree if improve, and becomes dosing on a small quantity then and can only add through artificial successively if will realize steel ball; The amount of labour is big, wastes time and energy, and automaticity is low.
Summary of the invention
The utility model provides a kind of rational in infrastructure, easy and simple to handle, time saving and energy saving in order to overcome above-mentioned defective, and automaticity is high, can realize the steel ball adding apparatus that steel ball is dosed successively on a small quantity.
The technical scheme that the utility model adopts is: a kind of steel ball adding apparatus of low speed coal mill; Comprise that lifting device and steel ball fall to struggling against, also comprise rotating disk and drive unit, be provided with base plate bottom described steel ball falls to struggling against; The center of base plate is provided with a conical projection; On base plate, along the outside distributed and arranged of projection through hole is arranged, described arrays of openings becomes a list circular, and the diameter of this through hole is greater than adding 30 millimeters to 50 millimeters of steel ball sizes; Described rotating disk be arranged on steel ball fall bottom sheet the below and with base plate for flexibly connecting; Distributed and arranged has through hole on the rotating disk; Hole size and position on this through hole and the base plate are corresponding, and rotating disk is connected with drive unit, and the rotating disk below is provided with the pipeline that is communicated with coal pulverizer.
The utility model is provided with base plate in the fall bottom of bucket of steel ball, and on base plate, is provided with conical projection, in the projection arranged outside through hole that can supply steel ball to fall; In the base plate bottom rotating disk is set, has on the rotating disk and the corresponding through hole of the through hole of base plate, rotating disk is connected with drive unit; Rotating disk can horizontally rotate under drive device drives, and when the through hole on the through hole of rotating disk and the base plate was corresponding up and down, the steel ball that steel ball falls in the bucket just can fall; Get into the coal-grinding storehouse through pipeline then; The steel ball of this structure mode that adds can not occur that large batch of steel ball is disposable just to join in the coal-grinding storehouse, but successively, add on a small quantity, can reduce the steel ball loss like this; Guarantee the coal pulverizer power that overfills, improve the economic operation level of coal pulverizer.
Description of drawings
Fig. 1 is the sketch map of the utility model.
The specific embodiment
Combine accompanying drawing that the utility model is further described at present; Fig. 1 is a kind of embodiment of the utility model, comprises lifting device, steel ball fall bucket 1, rotating disk 2 and drive unit 3, and described steel ball bucket 1 bottom that falls is provided with base plate; The center of base plate is provided with a conical projection; On base plate, along the outside distributed and arranged of projection through hole is arranged, described arrays of openings becomes a list circular, and the diameter of this through hole is greater than adding 30 millimeters to 50 millimeters of steel ball sizes.Described rotating disk 2 be arranged on steel ball fall bucket 1 base plate the below and with base plate for flexibly connecting; Distributed and arranged has through hole on the rotating disk 2; Hole size and position on this through hole and the base plate are corresponding, and rotating disk 2 is connected with drive unit 3, and rotating disk 2 belows are provided with the pipeline that is communicated with coal pulverizer.Drive unit 3 in the present embodiment can adopt stepper motor, and motor output end is provided with gear, and the circumference of rotating disk 2 is arranged to gear-like, and motor drives rotating disk 2 through gear train and rotates.
During use, lifting device is put into the steel ball bucket 1 that falls with steel ball, starts drive unit 3, and drive unit 3 drives rotating disks 2 and rotates, and when through hole on the rotating disk 2 and steel ball fall the through hole of bucket 1 base plate when aliging, the steel ball via through holes that just can fall falls, and through pipeline entering coal-grinding storehouse.The utility model can be provided with the clear size of opening on base plate and the rotating disk 2 according to the size of steel ball, and usually the diameter of through hole is greater than adding 30 millimeters to 50 millimeters of steel ball sizes; The utility model can also be regulated the rotating speed of rotating disk 2 through the speed that changes drive unit 3, adds speed thereby regulate steel ball, and is applied widely, flexible operation.
The utility model can realize that steel ball doses successively on a small quantity, have rational in infrastructure, easy and simple to handle, time saving and energy saving, the characteristics that automaticity is high.
Claims (1)
1. the steel ball adding apparatus of a low speed coal mill; Comprise that lifting device and steel ball fall to struggling against, and is characterized in that: also comprise rotating disk and drive unit, be provided with base plate bottom described steel ball falls to struggling against; The center of base plate is provided with a conical projection; On base plate, along the outside distributed and arranged of projection through hole is arranged, described arrays of openings becomes a list circular, and the diameter of this through hole is greater than adding 30 millimeters to 50 millimeters of steel ball sizes; Described rotating disk be arranged on steel ball fall bottom sheet the below and with base plate for flexibly connecting; Distributed and arranged has through hole on the rotating disk; Hole size and position on this through hole and the base plate are corresponding, and rotating disk is connected with drive unit, and the rotating disk below is provided with the pipeline that is communicated with coal pulverizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202403850U CN202224216U (en) | 2011-07-08 | 2011-07-08 | Steel ball feeding device of low-speed coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202403850U CN202224216U (en) | 2011-07-08 | 2011-07-08 | Steel ball feeding device of low-speed coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202224216U true CN202224216U (en) | 2012-05-23 |
Family
ID=46074825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202403850U Expired - Fee Related CN202224216U (en) | 2011-07-08 | 2011-07-08 | Steel ball feeding device of low-speed coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202224216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989559A (en) * | 2012-12-31 | 2013-03-27 | 中南大学 | Automatic accurate control ball adding device |
-
2011
- 2011-07-08 CN CN2011202403850U patent/CN202224216U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989559A (en) * | 2012-12-31 | 2013-03-27 | 中南大学 | Automatic accurate control ball adding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |