CN203556417U - Ball charging device for steel ball coal mill - Google Patents
Ball charging device for steel ball coal mill Download PDFInfo
- Publication number
- CN203556417U CN203556417U CN201320663692.9U CN201320663692U CN203556417U CN 203556417 U CN203556417 U CN 203556417U CN 201320663692 U CN201320663692 U CN 201320663692U CN 203556417 U CN203556417 U CN 203556417U
- Authority
- CN
- China
- Prior art keywords
- ball
- gate valve
- coal mill
- valve
- feeding pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 title abstract description 17
- 239000010959 steel Substances 0.000 title abstract description 17
- 239000000843 powder Substances 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000002817 coal dust Substances 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Images
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a ball charging device for a steel ball coal mill. The ball charging device comprises a ball charging hopper, wherein the bottom of the ball charging hopper is connected with a ball storage box, and the bottom of the ball storage box is connected with a ball charging pipeline; the junction of the ball charging hopper and the ball storage box is provided with an upper brake valve; the junction of the ball storage box and the ball charging pipeline is provided with a lower brake valve; the top of the ball charging hopper is provided with a ball charging hopper cover plate; a buffering pipe is arranged at the middle part of the ball charging pipeline; a bottom brake valve is arranged at the lower part of the ball charging pipeline. By adopting the ball charging device, a ball charging passage is smooth, the phenomena such as ball seizure and ball clogging is unlikely to occur, the air-powder mixture can be effectively prevented from entering the pipeline, and the coal powder coagulation phenomenon inside the pipeline can be prevented.
Description
Technical field
The utility model relates to a kind of corollary equipment of low speed coal mill, is specifically related to a kind of ball adding device for low speed coal mill.
Background technology
Ball adding device is low speed coal mill, especially the vitals of double-inlet and double-outlet steel ball coal mill positive pressure direct blowing powder system.Low speed coal mill is when grinding coal dust, and the steel ball in mill constantly weares and teares, thereby cause grinding, interior ball load declines, the reduction of exerting oneself.For this reason, need to adopt ball adding device is that low speed coal mill is not shut down the online steel ball that supplements, and the consumption that supplements at any time steel ball in mill, makes low speed coal mill bring into play best milling capacity.
Existing ball adding device as shown in Figure 1 a, 1 b, comprises and adds ball bucket 2, adds the bottom connection ball-storing box 4 of ball bucket 2, and the bottom of ball-storing box 4 connects ball feeding pipe road 6; Add ball bucket 2 and be provided with gate valve 3 with the connecting portion of ball-storing box 4, ball-storing box 4 is provided with lower gate valve 5 with the connecting portion in ball feeding pipe road 6; The top that adds ball bucket 2 is provided with and adds ball bucket cover plate 1; The middle part in ball feeding pipe road 6 is provided with a separator tube 61; For preventing the greater impact to ball-storing box 4 and 5 generations of lower gate valve in installing the process of steel ball additional, within adding ball bucket 2, ball-storing box 4, be respectively arranged with buffer board 21,22,23 and buffer board 41,42.
During use, by adding ball bucket 2, be positioned in the same aspect of feeder, ball feeding pipe road 6 is logical in succession with the internal direct of low speed coal mill.While adding ball, first open and add ball bucket cover plate 1, then open gate valve 3, make steel ball pour ball-storing box 4 into by adding ball bucket 2; Close upper flashboard 3, slowly open lower flashboard 5, steel ball falls into raw coal porch by ball feeding pipe road 6, with raw coal, by spiral propeller, is sent in low speed coal mill.
This ball adding device in use often there will be stifled ball, card ball, leaks the defects such as powder.Because its structure is limit, once there is stifled ball, card ball, will be difficult to process, cannot realize the task of adding online at any time ball.
Analysis reason is as follows:
1, add buffer board in ball bucket 2, ball-storing box 4 and cause that ball adding device passage has some setbacks, ball feeding mouth narrows down, while causing using due to factors such as steel ball sphere diameter are large, steel ball outline is irregular, buffer board becomes stifled ball point;
2, in use procedure, upper gate valve 1 is seal valve, and lower gate valve 5 is load-bearing valve; During long-term use, due to the impact of steel ball, easily cause the flashboard distortion of lower gate valve 5, cause poorly sealed; Owing to need making gate valve 1 in open mode when to ball-storing box 4 note ball, if lower gate valve 5 is poorly sealed, and low speed coal mill is positive pressure system, will cause the wind powder mixture of low speed coal mill inside to overflow from the gap of lower gate valve 5, and environment is produced to larger pollution.
3, due between ball feeding pipe road 6 and low speed coal mill without quarantine measures, cause the steam that carries coal dust in low speed coal mill to enter ball feeding pipe road 6, and 6 outsides, ball feeding pipe road are normal temperature environment, easily cause that pipe interior coal dust condenses in a large number, pipeline rust; Once condense, coal dust is excessive, and the separator tube 61 in ball feeding pipe road 6 also will become stifled ball, card ball point.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of ball adding device for low speed coal mill, and it can effectively be avoided card ball, stifled ball, leak the problems such as powder.
For solving the problems of the technologies described above, the utility model for the technical solution of the ball adding device of low speed coal mill is:
Comprise and add ball bucket, the bottom that adds ball bucket connects ball-storing box, and the bottom of ball-storing box connects ball feeding pipe road; The connecting portion that adds ball bucket and ball-storing box is provided with gate valve, and the connecting portion in ball-storing box and ball feeding pipe road is provided with lower gate valve; The top that adds ball bucket is provided with and adds ball bucket cover plate; The middle part in ball feeding pipe road is provided with a separator tube; The bottom in ball feeding pipe road is provided with an end gate valve; Described upper gate valve, lower gate valve and end gate valve are from top to bottom arranged successively.
Described upper gate valve, lower gate valve and end gate valve are motor-driven valve or pneumatic operated valve.
Described upper gate valve and end gate valve are seal valve; Described lower gate valve is load-bearing valve.
The technique effect that the utility model can reach is:
Of the present utility model adding in ball bucket and ball-storing box, is not established buffer board, can make to add ball passage more smooth and easy, is difficult for occurring card ball, stifled ball phenomenon.
The utility model is provided with end gate valve in the bottom in ball feeding pipe road, can, by ball feeding pipe road and grinder system isolation, effectively avoid wind powder mixture to enter pipeline, the phenomenon that in pipeline, coal dust condenses.
The utility model can effectively reduce the fault rate of ball adding device, realizes the online steel ball consumption in mill that supplements, and makes grinding machine bring into play best milling capacity.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 a is the schematic diagram of prior art ball adding device;
Fig. 1 b is the side view of Fig. 1 a;
Fig. 2 a is that the utility model is for the schematic diagram of the ball adding device of low speed coal mill;
Fig. 2 b is the side view of Fig. 2 a.
Description of reference numerals in figure:
1 for adding ball bucket cover plate, and 2 for adding ball bucket,
3 is upper gate valve, and 4 is ball-storing box,
5 is lower gate valve, and 6 is ball feeding pipe road,
7 is end gate valve, and 61 is separator tube.
The specific embodiment
As shown in Fig. 2 a, Fig. 2 b, the utility model, for the ball adding device of low speed coal mill, comprises and adds ball bucket 2, adds the bottom connection ball-storing box 4 of ball bucket 2, and the bottom of ball-storing box 4 connects ball feeding pipe road 6; Add ball bucket 2 and be provided with gate valve 3 with the connecting portion of ball-storing box 4, ball-storing box 4 is provided with lower gate valve 5 with the connecting portion in ball feeding pipe road 6; The top that adds ball bucket 2 is provided with and adds ball bucket cover plate 1; The middle part in ball feeding pipe road 6 is provided with a separator tube 61;
The bottom in ball feeding pipe road 6 is provided with an end gate valve 7.
The utility model is provided with three road gate valves from top to bottom, and upper gate valve 3 and end gate valve 7 play sealing function, and the lower gate valve 5 in the middle of being positioned at plays the effect of load-bearing, can guarantee all can not leak out, leak powder phenomenon in use and de-activation procedure.
Method of operating of the present utility model is as follows:
The first step, opens and adds ball bucket cover plate 1;
Second step, opens gate valve 3;
The 3rd step, pours a certain amount of steel ball to add in ball bucket 2 into by adding the ball feeding mouth of ball bucket 2, and steel ball falls to ball-storing box 4 automatically;
The 4th step, closes gate valve 3;
The 5th step, opens end gate valve 7;
The 6th step, opens lower gate valve 5, steel ball under Action of Gravity Field along ball feeding pipe road 6 automatic landings inner to grinding machine;
The 7th step, treats that the complete landing of steel ball, to grinding machine, closes lower gate valve 5 and end gate valve 7 successively;
The 8th step, closes and adds ball bucket cover plate 1, adds chou bundle.
Ruo Yinjia ball amount is larger, cannot once complete, and after completing the first step, can according to second step to the seven steps, loop successively until complete the required ball amount that adds, and finally carries out the 8th step, completes the whole ball process that adds.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvement and supplement, these improvement and supplement and also should be considered as protection domain of the present utility model.
Claims (3)
1. for a ball adding device for low speed coal mill, it is characterized in that: comprise and add ball bucket, the bottom that adds ball bucket connects ball-storing box, and the bottom of ball-storing box connects ball feeding pipe road; The connecting portion that adds ball bucket and ball-storing box is provided with gate valve, and the connecting portion in ball-storing box and ball feeding pipe road is provided with lower gate valve; The top that adds ball bucket is provided with and adds ball bucket cover plate; The middle part in ball feeding pipe road is provided with a separator tube; The bottom in ball feeding pipe road is provided with an end gate valve; Described upper gate valve, lower gate valve and end gate valve are from top to bottom arranged successively.
2. the ball adding device for low speed coal mill according to claim 1, is characterized in that: described upper gate valve, lower gate valve and end gate valve are motor-driven valve or pneumatic operated valve.
3. the ball adding device for low speed coal mill according to claim 1, is characterized in that: described upper gate valve and end gate valve are seal valve; Described lower gate valve is load-bearing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663692.9U CN203556417U (en) | 2013-10-25 | 2013-10-25 | Ball charging device for steel ball coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663692.9U CN203556417U (en) | 2013-10-25 | 2013-10-25 | Ball charging device for steel ball coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203556417U true CN203556417U (en) | 2014-04-23 |
Family
ID=50506170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320663692.9U Expired - Lifetime CN203556417U (en) | 2013-10-25 | 2013-10-25 | Ball charging device for steel ball coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203556417U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190505A (en) * | 2014-07-28 | 2014-12-10 | 济南重工股份有限公司 | Online ball adding device of coal mill |
| CN105233928A (en) * | 2015-10-08 | 2016-01-13 | 昆明理工大学 | Continuous ball supply device for positive-pressure coal mill |
| CN106076514A (en) * | 2016-08-02 | 2016-11-09 | 济南重工股份有限公司 | A kind of sealing ball adding device and method |
| CN108579917A (en) * | 2018-05-07 | 2018-09-28 | 浙江艾领创矿业科技有限公司 | A kind of energy-efficient grinding technics |
| CN108704721A (en) * | 2018-05-07 | 2018-10-26 | 浙江艾领创矿业科技有限公司 | A kind of ball adding device for fine grinding equipment |
-
2013
- 2013-10-25 CN CN201320663692.9U patent/CN203556417U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190505A (en) * | 2014-07-28 | 2014-12-10 | 济南重工股份有限公司 | Online ball adding device of coal mill |
| CN105233928A (en) * | 2015-10-08 | 2016-01-13 | 昆明理工大学 | Continuous ball supply device for positive-pressure coal mill |
| CN106076514A (en) * | 2016-08-02 | 2016-11-09 | 济南重工股份有限公司 | A kind of sealing ball adding device and method |
| CN108579917A (en) * | 2018-05-07 | 2018-09-28 | 浙江艾领创矿业科技有限公司 | A kind of energy-efficient grinding technics |
| CN108704721A (en) * | 2018-05-07 | 2018-10-26 | 浙江艾领创矿业科技有限公司 | A kind of ball adding device for fine grinding equipment |
| CN108579917B (en) * | 2018-05-07 | 2021-08-06 | 浙江艾领创矿业科技有限公司 | Mineral grinding process |
| CN108704721B (en) * | 2018-05-07 | 2024-04-09 | 浙江艾领创矿业科技有限公司 | Ball adding device for fine grinding equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161226 Address after: 200245 Jiangchuan Road, Shanghai, No. 230, building 1800, No. Patentee after: SHANGHAI ELECTRICAL SHANGHAI HEAVY MACHINE MILLING SPECIAL EQUIPMENT CO.,LTD. Patentee after: Shanghai Heavy Machine Plant Co.,Ltd. Address before: 200245 Jiangchuan Road, Shanghai, No. 1800, No. Patentee before: Shanghai Heavy Machine Plant Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |