CN112207033A - Floating ball type sieve plate falling detection device - Google Patents
Floating ball type sieve plate falling detection device Download PDFInfo
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- CN112207033A CN112207033A CN202010613443.3A CN202010613443A CN112207033A CN 112207033 A CN112207033 A CN 112207033A CN 202010613443 A CN202010613443 A CN 202010613443A CN 112207033 A CN112207033 A CN 112207033A
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- support
- floating ball
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- ball type
- self
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 239000003245 coal Substances 0.000 claims abstract description 47
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 10
- 230000001012 protector Effects 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000008719 thickening Effects 0.000 claims 3
- 210000001503 joint Anatomy 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 240000005561 Musa balbisiana Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/01—Wet separation
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model provides a detection device that floater formula sieve dropped, includes the support part and installs the thick device of self-control cut, floater formula on the support part and prevent stifled control appearance and protector, characterized by, the support part includes first support, installs second support, third support and fourth support on the first support, the thick device of self-control cut fix on the support, floater formula prevents stifled control appearance and protector fixes on the support, the thick device of self-control cut with the floater formula prevents stifled control appearance between through leg joint. The floating ball type anti-blocking control instrument comprises a stainless steel floating ball, the upper end of the stainless steel floating ball is connected with a coal level feeler lever, the level feeler lever is connected with a protective device top cover through a connecting ring, the protective device comprises an upper sleeve and a lower sleeve which are fixedly installed, and the upper sleeve is provided with a protective top cover.
Description
Technical Field
The invention relates to a floating ball type sieve plate falling detection device used for a heavy medium washing system.
Background
In the coal washing process, the coal dressing method is mainly divided into a wet coal dressing method and a dry coal dressing method. And the wet coal preparation is widely applied due to stable process operation, high separation efficiency and less pollution. The dehydration and medium removal of coal in the wet coal preparation process are one of the necessary links in the process flow. Among them, the vibrating screen is favored by the coal washery in view of its advantages of large handling capacity, high efficiency of screening, dewatering, desliming and medium removal, stable and reliable performance, etc., becomes the main equipment for screening and washing coal, and is widely applied in coal dressing operation at home and abroad. The coal preparation plant of high coal company adopts two sets of heavy medium coal preparation processes of pre-desliming and desliming of raw coal, and the types of vibration sieves used mainly include banana desliming sieves and linear medium-removing vibration sieves.
Along with the increase of service time, shale shaker sieve, rail seat aging wear, the sieve appears the not hard up phenomenon gradually, but hardly discovers in daily maintenance in-process. Once the screen deck is removed while the equipment is in operation and is not discovered in time and is shut down for disposal, the following problems arise:
1. the large coal blocks enter the screen underflow pool of the vibrating screen, so that pipelines of the screen underflow pool are blocked and are extremely difficult to clean;
2. part of large coal with the granularity less than 50mm enters equipment such as a lower-level coal slime bucket, a swirler, a TBS separator and the like through a undersize coal slime water pipeline, so that the blockage of the coal slime bucket, the abrasion of equipment such as a coal slime water pump and a hydrocyclone are aggravated, and the service life of the equipment is reduced;
3. the large coal blocks enter equipment such as a lower-level magnetic separator, so that the magnetic separator is blocked and the medium runs out, and the medium consumption is increased;
4. part of the coal slime with the grain size of more than 0.5mm enters a flotation machine, so that coarse flotation is caused, and the product quality is influenced;
5. part of the coal slime with the grain size of more than 1mm enters the tailing coal filter press, and the filter cloth of the filter press is damaged.
With the continuous development of the intelligent level of coal dressing, most of on-site stations of a coal dressing plant cancel post drivers, so how to realize early discovery and alarm of equipment faults is one of important guarantee means for realizing intelligent development of coal dressing and reducing people and improving efficiency. Aiming at the phenomenon that the sieve plate of the vibrating screen easily drops, no special sieve plate drop detection device is available on the market at present, and when the sieve plate drops, equipment cannot be timely and protectively stopped and can perform fault alarm, so that accident enlargement is caused.
Therefore, how to find and stop in time when the sieve plate falls and the undersize collecting pipe is blocked is an urgent problem to be solved in the production process.
In view of this, my unit has designed a floater formula sieve detection device that drops by oneself.
Disclosure of Invention
The invention aims to provide a floating ball type sieve plate falling detection device which is simple in structure, efficient, energy-saving, sensitive in detection and convenient to maintain, realizes the functions of automatic sieve plate falling detection, automatic operation stop of a vibrating screen, alarm and the like, improves the accident prevention capability, ensures stable operation of a system and prevents accident amplification.
In order to solve the problems, the efficient and stable operation of the equipment is realized. The technical scheme adopted by the invention is as follows:
the utility model provides a detection device that floater formula sieve dropped, includes the support part and installs the thick device of self-control cut, floater formula on the support part and prevent stifled control appearance and protector, characterized by, the support part includes first support, installs second support, third support and fourth support on the first support, the thick device of self-control cut fix on the support, floater formula prevents stifled control appearance and protector fixes on the support, the thick device of self-control cut with the floater formula prevents stifled control appearance between through leg joint.
The floating ball type anti-blocking control instrument comprises a stainless steel floating ball, the upper end of the stainless steel floating ball is connected with a coal level feeler lever, the coal level feeler lever is connected with a top cover of the protective device through a connecting ring,
the protective device comprises an upper sleeve and a lower sleeve which are fixedly arranged, a protective top cover is arranged on the upper sleeve,
the self-made thickness cutting device comprises a thickness cutting body, and a ceramic pipe sleeve is welded on the thickness cutting body.
By the design and application of the floating ball type sieve plate falling detection device, the accident treatment efficiency is improved, the self-made coarse cutting device effectively isolates the blocking of the lower sieve pipe by the lump coal, a series of equipment abrasion and faults of a subsequent cyclone, a filter press and the like caused by the fact that the lump coal enters the lower sieve pipe are solved, the equipment loss is further reduced, the stability of equipment operation is improved, and the equipment and material cost can be reduced by about 40 ten thousand yuan each year; the floating ball type anti-blocking control instrument can stop the vibrating screen in time after detecting that the undersize pool is blocked, and the dispatching centralized control system can give an alarm in time to inform field personnel to handle, so that untimely accident finding is avoided, and the accident enlargement is effectively prevented. The expected 10 hours per month of accident time is shortened, and the stable production of the system is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a structural diagram of a protective device according to the present invention;
FIG. 3 is a schematic structural diagram of a structure diagram of the floating ball type anti-blocking detector;
FIG. 4 is a front view of the home-made thickness cutting device of the present invention;
FIG. 5 is a top view of the self-made skimming device of the present invention;
FIG. 6 is a logic relationship diagram of the floating ball type anti-blocking controller.
In the drawings: 1. screening the lower tank by a vibrating screen; 2. A first bracket; 3. A guard; 4. a connecting ring; 5. a second bracket; 6. a third support; 7. a fourth bracket; 8. a floating ball type anti-blocking control instrument; 9. self-manufacturing a coarse cutting device; 10. a protective top cover; 11. An upper sleeve; 12. a lower sleeve; 13. a switch contact; 14. a coal level feeler lever; 15. a stainless steel floating ball; 16. a ceramic tube sleeve; 17. cut in bold.
Detailed Description
The invention is further described with reference to the accompanying drawings 1-5 of the specification:
the invention comprises brackets (2, 5, 6, 7), a self-made thickness cutting device (9), a floating ball type anti-blocking control instrument (8) and a protection device (3) thereof. Support (5), support (6), equal welded fastening of support (7) are on support (2), and support (2) are fixed in shale shaker sifting pond (1) both sides, thick device (9) are fixed in support (7) are cut in the self-control, floater formula prevents stifled control appearance (8) and protector (3) are fixed in support (5), and thick device (9) are cut in the self-control and are connected on support (6) with floater formula prevents stifled control appearance (8) between. The floating ball type anti-blocking control instrument (8) is composed of a stainless steel floating ball (15), a coal level feeler lever (14), a switch contact (13) and the like, wherein the upper end of the stainless steel floating ball (15) is connected with the coal level feeler lever (14), and the coal level feeler lever (14) is connected with a protective device top cover (10) through a connecting ring (4). The protection device comprises a top cover (10), an upper sleeve (11) and a lower sleeve (12), wherein the top cover (10) can be detached, so that the maintenance is facilitated, and the anti-blocking control instrument is convenient. The self-made thickness cutting device (9) is composed of a ceramic tube sleeve (16) and a thickness cutting body (17) made of a centrifuge basket, and the ceramic tube sleeve (16) and the thickness cutting body (17) are welded and fixed.
When the sieve plate falls, fine materials with the grain size less than or equal to 0.5mm and coal slime water enter a discharging pipe of the vibrating sieve from the screen wire of the screen basket with the cut-off coarse body, and coal blocks with the grain size greater than or equal to 0.5mm are automatically isolated outside the cut-off coarse device. The large coal falling through the anti-blocking controller is detected, the structure is scientific and reasonable, the reaction is sensitive, and great help is provided for solving the problem that the sieve plate falls and is blocked in the undersize pool.
In the aspect of electrical control, a floating ball type anti-blocking controller sensor is used in a matched manner with the comprehensive protection of the vibrating screen, and an electric signal of the sensor is connected to a programmable controller substation and used as one of locking operation conditions of the vibrating screen to participate in equipment control. And under the normal condition that the sieve plate does not fall, the output end of the sensor outputs low level. When the sieve plate falls or other reasons cause the undersize collecting pipe to be blocked, and when the coal level is increased due to the fact that large coal is gathered, the coal level pushes the stainless steel floating ball to act, the floating ball pushes the contact rod to swing away from the central line, when the angle of the contact rod is larger than 15 degrees, the universal contact in the contact rod is conducted, the high level is output, coal piling protection is achieved, and meanwhile a voice alarm signal is sent out.
FIG. 6 is a logic relation diagram of the blocking of the floating ball type anti-blocking controller, the anti-blocking controller is provided with a filtering delay of 2.5s, when the undersize pool is blocked, the DM _ LC is conducted for more than 2.5s, and the blocking fault is reported. HMI _ RESET is a fault RESET key through which it can be RESET when an anti-jam is misreported for a particular reason. When the anti-blocking is determined, the reset key does not work, and the site confirmation is required to be carried out in time. ERR _ DM is for preventing stifled auto-lock program block, when preventing stifled condition and satisfying, guarantees to prevent stifled warning and continuously outputs, and ERR _ DM trouble piece is gone into equipment main program block in cluster, breaks down and in time parks, avoids the accident to enlarge the ization.
Through design and application, the structure is scientific and reasonable, the sensitivity is high, the accident treatment efficiency is improved, a series of equipment abrasion and faults of a subsequent cyclone, a filter press and the like caused by that large coal enters a sieve and a pipe are solved, the equipment loss is further reduced, and the running stability of the equipment is improved; the floating ball type anti-blocking control instrument can stop the vibrating screen in time after detecting that the undersize pool is blocked, and the dispatching centralized control system can give an alarm in time to inform field personnel to handle, thereby avoiding accident amplification caused by untimely accident discovery. The expected 10 hours per month of accident time is shortened, and the stable production of the system is ensured.
According to statistics, the sieve plate falls and is blocked in 8-12 months in 2019, the average time per month is 45 hours, iron ware enters the cyclone due to the fact that the iron ware falls in the sieve plate in 2019, and the 2 groups of the gangue cyclones are replaced. After the floating ball type sieve plate falling detection device is applied to the 2# dense medium system 3403 vibrating screen in the coal washery, a part is not replaced at the end of 2019, the time of an accident is zero, the material cost can be saved by 40 ten thousand yuan every year, and the method has great economic benefit and social benefit.
Claims (4)
1. The utility model provides a detection device that falls of floater formula sieve, includes the support part and installs self-control on the support part and cut thick device (9), floater formula and prevent stifled control appearance (8) and protector (3), characterized by, the support part includes first support (2), installs second support (5), third support (6) and fourth support (7) on first support (2), self-control cut thick device (9) and fix on support (7), floater formula prevents stifled control appearance (8) and protector (3) are fixed on support (5), self-control is cut thick device (9) and is connected through support (6) between floater formula prevents stifled control appearance (8).
2. The floating ball type sieve plate falling detection device as claimed in claim 1, wherein: the floating ball type anti-blocking control instrument (8) comprises a stainless steel floating ball (15), the upper end of the stainless steel floating ball (15) is connected with a coal level feeler lever (14), and the coal level feeler lever (14) is connected with a protective device top cover (10) through a connecting ring (4).
3. The floating ball type sieve plate falling detection device as claimed in claim 1, wherein: the protection device (3) comprises an upper sleeve (11) and a lower sleeve (12) which are fixedly arranged, and a protection top cover (10) is arranged on the upper sleeve (11).
4. The floating ball type sieve plate falling detection device as claimed in claim 1, wherein: the homemade thickening device (9) comprises a thickening body (17), and a ceramic pipe sleeve (16) is welded on the thickening body (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010613443.3A CN112207033A (en) | 2020-06-30 | 2020-06-30 | Floating ball type sieve plate falling detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010613443.3A CN112207033A (en) | 2020-06-30 | 2020-06-30 | Floating ball type sieve plate falling detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112207033A true CN112207033A (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010613443.3A Pending CN112207033A (en) | 2020-06-30 | 2020-06-30 | Floating ball type sieve plate falling detection device |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1219610A (en) * | 1984-04-02 | 1987-03-24 | Nobusato Maruyama | Paper sheet processing apparatus |
| CN108554801A (en) * | 2018-04-19 | 2018-09-21 | 榆林学院 | A kind of de-mediated sieve plate falls off monitoring device |
| CN209109594U (en) * | 2018-04-19 | 2019-07-16 | 榆林学院 | A kind of de-mediated sieve plate falls off monitoring device |
| CN209334205U (en) * | 2018-12-10 | 2019-09-03 | 兖州煤业股份有限公司 | Chute anti-blocking-up protection apparatus under a kind of sculping screen |
| CN210115146U (en) * | 2019-05-08 | 2020-02-28 | 国电建投内蒙古能源有限公司 | Dehydration medium-removing sieve plate falling monitoring device |
| CN213494916U (en) * | 2020-06-30 | 2021-06-22 | 枣庄矿业集团高庄煤业有限公司 | Floating ball type sieve plate falling detection device |
-
2020
- 2020-06-30 CN CN202010613443.3A patent/CN112207033A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1219610A (en) * | 1984-04-02 | 1987-03-24 | Nobusato Maruyama | Paper sheet processing apparatus |
| CN108554801A (en) * | 2018-04-19 | 2018-09-21 | 榆林学院 | A kind of de-mediated sieve plate falls off monitoring device |
| CN209109594U (en) * | 2018-04-19 | 2019-07-16 | 榆林学院 | A kind of de-mediated sieve plate falls off monitoring device |
| CN209334205U (en) * | 2018-12-10 | 2019-09-03 | 兖州煤业股份有限公司 | Chute anti-blocking-up protection apparatus under a kind of sculping screen |
| CN210115146U (en) * | 2019-05-08 | 2020-02-28 | 国电建投内蒙古能源有限公司 | Dehydration medium-removing sieve plate falling monitoring device |
| CN213494916U (en) * | 2020-06-30 | 2021-06-22 | 枣庄矿业集团高庄煤业有限公司 | Floating ball type sieve plate falling detection device |
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Application publication date: 20210112 |
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| RJ01 | Rejection of invention patent application after publication |