CN109590217B - High-frequency flutter coal slime screening machine and use method thereof - Google Patents
High-frequency flutter coal slime screening machine and use method thereof Download PDFInfo
- Publication number
- CN109590217B CN109590217B CN201910033271.XA CN201910033271A CN109590217B CN 109590217 B CN109590217 B CN 109590217B CN 201910033271 A CN201910033271 A CN 201910033271A CN 109590217 B CN109590217 B CN 109590217B
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- China
- Prior art keywords
- screening machine
- frequency
- steel wire
- sieve
- coal slime
- Prior art date
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- 238000012216 screening Methods 0.000 title claims abstract description 56
- 239000003245 coal Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 239000000919 ceramic Substances 0.000 claims description 6
- 206010044565 Tremor Diseases 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000004575 stone Substances 0.000 description 8
- 230000006378 damage Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- 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
- B07B1/04—Stationary flat 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
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a high-frequency vibration coal slime screening machine, which comprises a vibrating device, a screening box and a first screen plate, wherein the front upper surface and the lower surface of the screening box are provided with openings, the first screen plate is fixedly connected to the openings of the lower surface of the screening box, the vibrating device is fixedly connected to four corners of the screening box, the high-frequency vibration coal slime screening machine further comprises a second screen plate, and the second screen plate is detachably arranged at the openings of the upper surface of the screening box. The high-frequency vibration coal slime screening machine solves the problems of long replacement time and high maintenance cost of the high-frequency vibration coal slime screening machine in the prior art.
Description
Technical Field
The invention relates to the field of power generation tools, in particular to a high-frequency flutter coal slime screening machine and a using method thereof.
Background
Because the coal slime contains a large amount of stone and other sundries such as metal components, the damage to the coal slime grate at the upper part of the coal slime receiving hopper is serious, after the coal slime grate is damaged, the sundries fall into the screw feeder to cause the jam of the screw feeder and the breakage of the transmission shaft, and part of stone falls into the paste slurry preparation machine to cause serious damage to the blades of the paste slurry preparation machine and aggravate the damage of the high-frequency vibration coal slime screening machine.
The existing coal slime screening machine screen plate is woven by a woven net, and the screen surface is long: 2320mm wide: 1400mm aperture: 30-50cm, screen bar: the utility model provides a coal slime screening machine, install and use briquetting bolted connection on the coal slime screening machine box, under equipment long-time running state, often cause the screening surface to become flexible, the bolt drops, the screen board amplitude is too big, lead to the screen board to fracture, and form noise pollution, secondly, because inside stone of paste slurry preparation machine, metal component is more, often cause the inside blade of paste slurry preparation machine to warp, drop, the blade, stone, metal component gets into the coal slime screening machine through paste slurry preparation machine, easily smash screening surface and wearing and tearing, often cause the screening surface fracture of coal slime screening machine when serious, and metal component, stone, screening surface smash the coal slime screening machine box, cause the box to damage, all metal component, stone get into the storage silo, cause frequent blocking of malleation batcher, the blade drops, seriously influence the safe steady operation of coal slime delivery pump, and cause on-the spot production environmental pollution seriously, contain coal waste water system scrubbing pressure increase.
3. Stone, metal component etc. get into the long-term operation of coal slime screening machine and smash injury, wearing and tearing, very easily cause coal slime screening machine screening surface fracture, box deformation desoldering, in case the screening surface fracture, box deformation desoldering, according to the original design of producer, in case damage, must dismantle the back with coal slime screening machine screening surface and box, change the coal slime screening machine, the work load is great, about 1 day of maintenance time at every turn, and the maintenance cost is higher (45128.21 yuan/cover of coal slime screening machine), and the purchasing cycle of coal slime screening machine screening surface is longer, and is great to coal slime adulteration influence.
Disclosure of Invention
The invention aims to solve the technical problems that: the high-frequency vibration coal slime screening machine and the use method thereof are provided, so that the problems of long replacement time and high maintenance cost of the high-frequency vibration coal slime screening machine in the prior art are solved.
The technical scheme of the invention is as follows: the utility model provides a high frequency tremble coal slime screening machine, includes vibrating device, sieve case and first sieve, upper and lower surface opening before the sieve case, first sieve fixed connection is in sieve case lower surface opening part, and vibrating device fixed connection is in sieve case four corners, high frequency tremble coal slime screening machine still includes the second sieve, and second sieve demountable installation is in sieve case upper surface opening part.
Further, the second sieve plate comprises a rectangular outer frame, the middle of the outer frame is provided with a hole, and a plurality of steel wire ropes parallel to the long side of the second sieve plate are fixedly connected between two short sides of the outer frame.
Further, the steel wire rope is fixedly connected with the two short sides of the outer frame through the basket bolts.
Further, the distance between two adjacent steel wire ropes is smaller than 40mm.
Further, the left side and the right side of the opening on the upper surface of the screen box are fixedly connected with baffle plates, the upper parts of the baffle plates incline outwards, and the inclination angle is smaller than 60 degrees.
Further, a plurality of support columns which are perpendicular to the screen box walls and parallel to each other are fixedly connected between the screen box walls on the left side and the right side of the second screen plate lower Fang Shaixiang.
Further, the second screen plate is inclined back and forth by an angle of less than 30 °.
The using method of the high-frequency flutter coal slime screening machine comprises the following steps,
s1, setting the vibration frequency of a vibration device as F;
s2, clamping a probe of the piezoelectric ceramic frequency measuring device on the outer frame;
s3, knocking each steel wire rope in sequence by using a hammer, reading the vibration frequency F 'of each steel wire rope measured by the piezoelectric ceramic frequency measuring device, and adjusting the tightness of the steel wire ropes by using the basket bolts until the difference between the natural frequency F' of each steel wire rope and the vibration frequency F is lower than 5%.
The beneficial effects of the invention are as follows:
compared with the prior art, the invention has the advantages that the second sieve plate is fixedly connected to the opening of the upper surface of the sieve box, and large sundries with larger destructiveness to the sieve plate are blocked by the detachable second sieve plate. The invention has the advantages of simple structure, extremely prolonged service life of the first sieve plate, short maintenance time and low maintenance cost, and is particularly suitable for being used on a high-frequency vibration coal slime screening machine.
Drawings
FIG. 1 is a perspective view of the present invention;
in the figure: 1 sieve case, 2 first sieve plates, 3 vibrating devices, 4 second sieve plates, 401 outer frames, 402 steel wire ropes, 5 support columns, 6 baffle plates and 7 bolts.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples:
referring to fig. 1, a high-frequency vibration coal slime screening machine comprises a vibrating device 3, a screen box 1 and a first screen plate 2, wherein the front upper surface and the lower surface of the screen box 1 are provided with openings, the first screen plate 2 is fixedly connected to the openings of the lower surface of the screen box 1, the vibrating device 3 is fixedly connected to four corners of the screen box 1, the high-frequency vibration coal slime screening machine further comprises a second screen plate 4, and the second screen plate 4 is arranged at the openings of the upper surface of the screen box 1 through bolts 7. Since the second screen plate 4 is detachable, the screen box 1 is not required to be detached together like the first screen plate 2, so that the detachment is simpler and more convenient.
Further, the second screen plate 4 includes a rectangular outer frame 401, a hole is formed in the middle of the outer frame 401, and a plurality of steel wires 402 parallel to the long side of the second screen plate 4 are fixedly connected between two short sides of the outer frame 401. If the natural frequency of the steel wire ropes 402 is consistent with the vibration frequency of the vibration device 3 in use, the steel wire ropes 402 are made to resonate, and the screening efficiency of the second screen plate 4 is greatly enhanced.
Further, the steel wire rope 402 is fixedly connected with two short sides of the outer frame 401 through a basket bolt. The tightness of the steel wire ropes 402 can be adjusted through the turnbuckle, so that the natural frequency of the steel wire ropes 402 can be adjusted, and meanwhile, the steel wire ropes 402 are damaged and are easy to detach and install.
Further, the distance between two adjacent steel wires 402 is smaller than 40mm. The interval of 40mm is most suitable for screening out sundries such as stones in the coal slime.
Further, the left side and the right side of the opening on the upper surface of the screen box 1 are fixedly connected with baffle plates 6, the upper parts of the baffle plates 6 incline outwards, and the inclination angle is smaller than 60 degrees. The baffle 6 can prevent the coal slime from falling to two sides.
Further, a plurality of support columns 5 which are perpendicular to the screen box walls and parallel to each other are fixedly connected between the screen box walls on the left side and the right side of the screen box 1 below the second screen plate 4. The support columns 5 play a role in supporting the second screening deck 4, so that the second screening deck 4 is more resistant to compression.
Further, the second screening deck 4 is inclined backward and forward by an angle of less than 30 °. So that the impurities screened by the second screen plate 4 can fall forward under the action of gravity.
The using method of the high-frequency flutter coal slime screening machine comprises the following steps,
s1, setting the vibration frequency of the vibration device 3 as F;
s2, clamping a probe of the piezoelectric ceramic frequency measuring device on the outer frame 401;
s3, knocking each steel wire rope 402 in sequence by using a hammer, reading the vibration frequency F 'of each steel wire rope measured by the piezoelectric ceramic frequency measuring device, and adjusting the tightness of the steel wire ropes 402 by using the basket bolts until the difference between the natural frequency F' of each steel wire rope 402 and the vibration frequency F is lower than 5%.
The method measures and adjusts the natural frequency of the steel wire rope 402 of the high-frequency vibratory slime screening machine, is quick and simple, and ensures the high-efficiency operation of the high-frequency vibratory slime screening machine.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (5)
1. The utility model provides a coal slime screening machine of high frequency trembling, includes vibrating device (3), sieve case (1) and first sieve (2), upper and lower surface opening before sieve case (1), first sieve (2) fixed connection is in sieve case (1) lower surface opening part, and vibrating device (3) fixed connection is in sieve case (1) four corners, its characterized in that: the high-frequency vibration slime screening machine further comprises a second screen plate (4), and the second screen plate (4) is detachably arranged at an opening on the upper surface of the screen box (1);
the second sieve plate (4) comprises a rectangular outer frame (401), the middle of the outer frame (401) is provided with a hole, and a plurality of steel wire ropes (402) parallel to the long side of the second sieve plate (4) are fixedly connected between two short sides of the outer frame (401);
the steel wire rope (402) is fixedly connected with two short sides of the outer frame (401) through a basket bolt;
the using method of the high-frequency flutter coal slime screening machine comprises the following steps,
s1, setting the vibration frequency of a vibration device (3) as F;
s2, clamping a probe of the piezoelectric ceramic frequency measuring device on an outer frame (401);
s3, knocking each steel wire rope (402) in sequence by using a hammer, reading the vibration frequency F 'of each steel wire rope measured by the piezoelectric ceramic frequency measuring device, and adjusting the tightness of the steel wire ropes (402) through the basket bolts until the difference between the inherent frequency F' of each steel wire rope (402) and the vibration frequency F is lower than 5%.
2. The high frequency vibratory slime screening machine as claimed in claim 1, wherein: the distance between two adjacent steel wire ropes (402) is smaller than 40mm.
3. The high frequency vibratory slime screening machine as claimed in claim 1, wherein: the left side and the right side of the opening on the upper surface of the screen box (1) are fixedly connected with baffle plates (6), the upper parts of the baffle plates (6) incline outwards, and the inclination angle is smaller than 60 degrees.
4. The high frequency vibratory slime screening machine as claimed in claim 1, wherein: a plurality of support columns (5) which are perpendicular to the screen box walls and parallel to each other are fixedly connected between the screen box walls on the left side and the right side of the screen box (1) below the second screen plate (4).
5. The high frequency vibratory slime screening machine as claimed in claim 1, wherein: the second sieve plate (4) is inclined back and forth, and the inclination angle is smaller than 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033271.XA CN109590217B (en) | 2019-01-14 | 2019-01-14 | High-frequency flutter coal slime screening machine and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033271.XA CN109590217B (en) | 2019-01-14 | 2019-01-14 | High-frequency flutter coal slime screening machine and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109590217A CN109590217A (en) | 2019-04-09 |
| CN109590217B true CN109590217B (en) | 2023-09-12 |
Family
ID=65966266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910033271.XA Active CN109590217B (en) | 2019-01-14 | 2019-01-14 | High-frequency flutter coal slime screening machine and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109590217B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275350A (en) * | 2020-10-27 | 2021-01-29 | 宿州市超王面业有限责任公司 | Impurity removal device and impurity removal method for flour production and processing |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB372269A (en) * | 1930-01-31 | 1932-05-05 | Zeitzer Eisengiesserei Und Mas | Improvements in or relating to screens or sieves |
| EP0155204A2 (en) * | 1984-02-17 | 1985-09-18 | Transfer Of Technology International- "T.T.I." | Cloth for a vibrating or shaking screening apparatus, and process for producing it |
| JP2005087865A (en) * | 2003-09-17 | 2005-04-07 | Komatsu Ltd | Self-propelled type sifter machine |
| DE202005009292U1 (en) * | 2005-06-13 | 2005-11-24 | Hess, Armin | Sieving plant for shredded materials is divided into sieving zones each with its own frequency-regulated drive, crankshaft and camshaft, with each sieving guide having longitudinal and transverse rods adjustable to fraction size |
| CN1872420A (en) * | 2006-06-29 | 2006-12-06 | 新汶矿业集团有限责任公司华丰煤矿 | Production system of jigging selection of coal |
| CN2845930Y (en) * | 2005-08-03 | 2006-12-13 | 王兰生 | Sieving device |
| CN101985122A (en) * | 2010-11-16 | 2011-03-16 | 马琳 | Efficient screening distributor |
| CN202087514U (en) * | 2011-04-07 | 2011-12-28 | 王新文 | Machine for screening damp material deeply |
| CN203124263U (en) * | 2013-03-22 | 2013-08-14 | 常州市武工传动机械有限公司 | Vibrating sieve bend |
| CN204107835U (en) * | 2014-09-11 | 2015-01-21 | 宜兴银茂荧光材料有限公司 | Fluorescent material screening machine |
| CN209439013U (en) * | 2019-01-14 | 2019-09-27 | 国投盘江发电有限公司 | A kind of high frequency flutter coal slime screening machine |
-
2019
- 2019-01-14 CN CN201910033271.XA patent/CN109590217B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB372269A (en) * | 1930-01-31 | 1932-05-05 | Zeitzer Eisengiesserei Und Mas | Improvements in or relating to screens or sieves |
| EP0155204A2 (en) * | 1984-02-17 | 1985-09-18 | Transfer Of Technology International- "T.T.I." | Cloth for a vibrating or shaking screening apparatus, and process for producing it |
| JP2005087865A (en) * | 2003-09-17 | 2005-04-07 | Komatsu Ltd | Self-propelled type sifter machine |
| DE202005009292U1 (en) * | 2005-06-13 | 2005-11-24 | Hess, Armin | Sieving plant for shredded materials is divided into sieving zones each with its own frequency-regulated drive, crankshaft and camshaft, with each sieving guide having longitudinal and transverse rods adjustable to fraction size |
| CN2845930Y (en) * | 2005-08-03 | 2006-12-13 | 王兰生 | Sieving device |
| CN1872420A (en) * | 2006-06-29 | 2006-12-06 | 新汶矿业集团有限责任公司华丰煤矿 | Production system of jigging selection of coal |
| CN101985122A (en) * | 2010-11-16 | 2011-03-16 | 马琳 | Efficient screening distributor |
| CN202087514U (en) * | 2011-04-07 | 2011-12-28 | 王新文 | Machine for screening damp material deeply |
| CN203124263U (en) * | 2013-03-22 | 2013-08-14 | 常州市武工传动机械有限公司 | Vibrating sieve bend |
| CN204107835U (en) * | 2014-09-11 | 2015-01-21 | 宜兴银茂荧光材料有限公司 | Fluorescent material screening machine |
| CN209439013U (en) * | 2019-01-14 | 2019-09-27 | 国投盘江发电有限公司 | A kind of high frequency flutter coal slime screening machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109590217A (en) | 2019-04-09 |
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