CN114210552A - Dry method sorting system suitable for sorting slack coal - Google Patents
Dry method sorting system suitable for sorting slack coal Download PDFInfo
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- CN114210552A CN114210552A CN202111516011.1A CN202111516011A CN114210552A CN 114210552 A CN114210552 A CN 114210552A CN 202111516011 A CN202111516011 A CN 202111516011A CN 114210552 A CN114210552 A CN 114210552A
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- 239000003245 coal Substances 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 86
- 238000007599 discharging Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000012216 screening Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000003437 trachea Anatomy 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010878 waste rock Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- 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
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- 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
-
- 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
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a dry separation system suitable for separating fine coal, which comprises a bed body, a driving device, a sieve plate and a feeding device, wherein the driving device is a driving motor, sieve holes are distributed on the sieve plate, the sieve plate with the sieve holes is arranged on the separation bed body, the feeding device conveys the fine coal to the separation bed body, and the separation bed body is driven by the driving device to vibrate and is used for separating the fine coal. The dry method sorting system suitable for sorting the slack coal solves the problem that the sieve pores are blocked by the existing sorting mechanism, and provides sorting capacity; the ventilating device can ventilate into the ventilating holes, then the air is blown into the sieve holes from the communicating holes, and the blocked materials in the sieve holes can be blown clean.
Description
Technical Field
The invention belongs to the technical field of coal separation, and particularly relates to a dry separation system suitable for separating slack coal.
Background
The coal dressing industry in China is started late, and the coal dressing industry is established only in the 50 s of the 20 th century; the increase speed of the raw coal input quantity during the period of 'eighty-five' exceeds the increase speed of the raw coal for the first time, and the coal dressing continues to increase rapidly during the periods of 'nine-five' and 'fifteen'; in 2008, the raw coal entry amount is 11 hundred million tons, and the entry rate is 43%; 30.50 hundred million tons of raw coal are produced in China in 2009, and the washing rate of the raw coal is not increased basically; in recent years, China increasingly pays more attention to the development of coal separation industry, and particularly the number of coal separation plants is continuously increased from 2010 to the present.
The clean utilization of coal resources becomes a key problem which needs to be paid attention to in the coal industry more and more in recent years, and the dry coal dressing can reduce various harmful substances in coal and has positive significance to environmental protection; on the other hand, as the coal resource distribution region in China is mainly in water resource deficient regions such as northwest regions, the wet coal dressing is not feasible and wastes water resources seriously in many cases, and a plurality of coal types like brown coal which can be slurried or argillized by water are available, so that the wet coal dressing cannot be carried out. The dry coal dressing method is developed rapidly in recent years, and is beneficial to resource saving and environmental protection.
The existing dry separation device is not provided with a vibration composite dry separation system which is independently suitable for separating slack coal, and the reason is that the existing dry separation device comprises a feeding device, a separation bed body, a discharging device, an air supply device, an air distributor and a bottom support, the separation bed body is provided with a plurality of layers of bed surface sieve plates for screening, when the existing dry separation device is used for separating the slack coal, sieve holes of the plurality of layers of bed surface sieve plates are easy to block, the screening of coal is influenced, and the cleaning of the sieve holes of the plurality of layers of bed surface sieve plates is inconvenient; in addition, a vibration exciter is arranged on the existing separation bed body and drives the separation bed body to vibrate, but the separation effect of the vibration mode for separating the slack coal is general.
In China and worldwide, a large number of slack coal deposits in geological mines need a dry separation system suitable for separating slack coal in order to improve the coal quality.
Disclosure of Invention
Based on the problems in the prior art, the invention provides a dry-method separation system suitable for separating slack coal, which has good screening effect and convenient screen hole cleaning.
According to the technical scheme, the dry separation system suitable for separating the slack coal comprises a separation bed body, a driving device, a sieve plate and a feeding device, wherein the driving device is a driving motor, sieve holes are distributed in the sieve plate, the sieve plate with the sieve holes is installed on the separation bed body, the feeding device conveys the slack coal to the separation bed body, and the separation bed body is driven by the driving device to vibrate and is used for separating the slack coal.
Wherein, a driving motor of the dry method sorting system suitable for sorting the slack coal is a vibration device or an excitation device.
Further, a dry separation system suitable for separating slack coal further includes a preceding stage separation system, the preceding stage separation system is a dry separation system for separating raw coal, the raw coal including large-size blocks is roughly separated, and the small-size blocks and slack coal after rough separation are sent to a subsequent stage slack coal separation system.
The pre-stage sorting system is provided with a lump coal deflector rod system which is used for sorting and deflecting lump coal.
In addition, a dry method sorting system suitable for select separately slack coal further includes clean coal discharge end, middlings discharge end and waste rock discharge end, is used for discharging the clean coal, middlings and the waste rock of selecting separately respectively.
Further, a dry process sorting system suitable for select separately the end coal still includes the base, it has a plurality of hinge bars to articulate on the base, the hinge bar is kept away from the one end of base and is selected separately the articulated of the bed body, be fixed with the supporting seat on the base, be fixed with driving motor on the supporting seat, be fixed with drive cam in driving motor's the pivot, drive cam sets up the below at the separation bed body, drive cam's outer wall and the downside butt of the separation bed body.
Furthermore, the supporting seat is provided with two, two the supporting seat is in the front and back both sides of base.
Further, install the sieve on the sorting bed body, be equipped with a plurality of screen hole groups of being listed as on the sieve, a plurality of groups screen hole group is arranged in proper order along the horizontal of sieve, and adjacent two sets of be equipped with the air vent between the screen hole group, the air vent passes through the connecting hole intercommunication with the sieve mesh in the adjacent screen hole group, be connected with ventilation unit on the air vent.
Further, every the air vent internal rotation is connected with the rotation trachea, be equipped with the rotation hole that corresponds with the connecting hole on the tracheal lateral wall of rotation, it includes sealed end and intercommunication end to rotate the trachea, the outside of sieve is equipped with the house steward, be equipped with on the lateral wall of house steward and rotate the trachea one-to-one's connecting tube body, it pegs graft with the connecting tube body that corresponds to rotate tracheal intercommunication end, ventilation unit ventilates to rotating the trachea through the house steward.
Furthermore, a fixed plate is fixed at the sealing end of the rotating air pipe, a driven gear is fixed at the communicating end of the rotating air pipe, a telescopic cylinder is fixed on the header pipe, a driving rack is fixed on a piston rod of the telescopic cylinder, and each driven gear is meshed with the driving rack.
Compared with the prior art, the dry separation system suitable for separating the slack coal has the beneficial effects that:
(1) the sorting bed body is supported by the driving cam, and the rotation of the driving cam can drive the sorting bed body to vibrate integrally, so that the vibration effect is good;
(2) the ventilating device can ventilate the ventilating holes, then the air is blown into the sieve holes from the communicating holes, and the blocked materials in the sieve holes can be blown clean;
(3) the telescopic cylinder can drive the driving rack to move transversely, so that the driving rack can rotate the rotating air pipe, the rotating angle of the rotating air pipe is controlled, when air blowing in the sieve hole is not needed, the rotating air pipe can be rotated, the rotating hole is not communicated with the connecting hole, and therefore coal is prevented from entering the ventilating hole in the screening process.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the dry sorting apparatus according to the present invention;
FIG. 2 is a schematic view of another angle of FIG. 1;
FIG. 3 is a schematic structural diagram of a sieve plate according to an embodiment of the dry-method sorting apparatus of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at I;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;
FIG. 7 is an enlarged view of a portion of FIG. 6 at II;
FIG. 8 is an enlarged view of a portion of FIG. 6 at III;
fig. 9 is a schematic structural view of a second embodiment of the dry sorting apparatus according to the present invention.
In the figure: 1. sorting the bed body; 2. a hinged lever; 3. a base; 4. a supporting seat; 5. a drive motor; 6. a drive cam; 7. a sieve plate; 8. connecting holes; 9. screening holes; 10. a header pipe; 11. connecting the pipe body; 12. rotating the air pipe; 13. a driven gear; 14. a telescopic cylinder; 15. a drive rack; 16. a fixed block; 17. a chute; 18. rotating the hole; 19. a vent hole; 20. a fixing plate; 21. a second drive shaft; 22. a driven sprocket; 23. connecting a chain; 24. a drive sprocket; 25. a first drive shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a dry method sorting system suitable for sorting slack coal, wherein a ventilating device can ventilate in a ventilating hole, then air is blown into a sieve hole from the ventilating hole, and the blocked material in the sieve hole can be blown clean; the telescopic cylinder can drive the driving rack to move transversely, so that the driving rack can rotate the rotating air pipe, the rotating angle of the rotating air pipe is controlled, when air blowing in the sieve hole is not needed, the rotating air pipe can be rotated, the rotating hole is not communicated with the connecting hole, and therefore coal is prevented from entering the ventilating hole in the screening process.
The invention provides a dry separation system suitable for separating slack coal, which is not only independently suitable for the dry separation of the slack coal, but also can be combined with the existing dry separation device to realize the classification separation of raw coal, namely, the raw coal mixed with lump coal and slack coal is firstly subjected to the dry separation equipment or process of the applicant, and then the invention is further used for carrying out high-quality separation on the slack coal. Furthermore, the dry separation system suitable for separating the slack coal can also be independently suitable for separating the small-size lump coal from the slack coal.
A dry separation system suitable for separating the slack coal comprises a separation bed body, a driving device, a sieve plate and a feeding device, wherein the driving device is preferably a driving motor, the driving motor is preferably a vibrating device or an excitation device, sieve holes are distributed on the sieve plate, the sieve plate with the sieve holes is installed on the separation bed body, the feeding device conveys the slack coal to the separation bed body, and the separation bed body is driven by the driving device to vibrate and is used for separating the slack coal. Further, a dry separation system suitable for separating slack coal includes preceding stage sorting system, preceding stage sorting system is the dry separation system who selects separately raw coal, carries out rough separation including the raw coal of big block diameter, and the small particle size lump coal and the slack coal after rough separation send to the slack coal sorting system of back level in. The preceding stage sorting system is provided with a lump coal deflector rod system which is used for sorting and deflecting lump coal. The dry separation system suitable for separating slack coal further comprises a clean coal discharge end, a middlings discharge end and a gangue discharge end which are respectively used for discharging separated clean coal, middlings and gangue.
Only a slack coal sorting mechanism of a dry sorting system adapted to sort slack coal will be described in further detail below with reference to the accompanying drawings. As shown in fig. 1 to 9, a dry separation system suitable for separating slack coal includes the following technical solutions of example one and implementation two.
The first embodiment is as follows:
as shown in fig. 1-8, a dry method sorting system suitable for sorting slack coal, including sorting the bed body 1, set up base 3 in sorting the bed body 1 below, it has a plurality of articulated arms 2 to articulate on base 3, in this embodiment, articulated arms 2 are provided with four, four articulated arms 2 set up four edges of base 3 respectively, the articulated arm 2 keeps away from the one end of base 3 and the articulated of sorting the bed body 1, be fixed with supporting seat 4 on base 3, be fixed with driving motor 5 on supporting seat 4, be fixed with drive cam 6 in driving motor 5's the pivot, drive cam 6 sets up in the below of sorting the bed body 1, the outer wall of drive cam 6 and the downside butt of sorting the bed body 1.
The driving motor 5 drives the driving cam 6 to rotate, and the driving cam 6 supports the sorting bed body 1, so that the driving cam 6 can drive the sorting bed body 1 to vibrate integrally, and the vibration effect is good. The rotating speed of the cam 6 can be driven by the driving motor 5, so that the vibration frequency of the separation bed body 1 can be adjusted, and the separation bed body 1 can better separate coal.
As shown in fig. 2, two supporting seats 4 are provided, the two supporting seats 4 are arranged on the front and rear sides of the base 3, a driving motor 5 is fixed on each supporting seat 4, and a driving cam 6 is fixed on the rotating shaft of each driving motor 5.
As shown in figures 3-8, install sieve 7 on the separation bed body 1, be equipped with a plurality of sieve meshes 9 groups on the sieve 7, a plurality of sieve meshes 9 groups of group are arranged along the horizontal of sieve 7 in proper order, and every sieve meshes 9 group of row includes the sieve mesh 9 that a plurality of vertically arranged in proper order along sieve 7, is equipped with air vent 19 between two sets of adjacent sieve meshes 9 groups, and air vent 19 and the sieve mesh 9 of adjacent sieve meshes 9 group pass through connecting hole 8 intercommunication, are connected with ventilation unit on the air vent 19.
As shown in fig. 3 to 8, the ventilating device can ventilate the ventilating holes 19, and then the air is blown into the sieve holes 9 from the communicating holes, so that the blocked materials in the sieve holes 9 can be blown clean. The cleaning of the materials in the sieve holes 9 is very convenient, and the sieve plate 7 does not need to be detached from the separation bed body 1 for cleaning.
As shown in fig. 3-8, each air vent 19 is rotatably connected with a rotating air pipe 12, a rotating hole 18 corresponding to the connecting hole 8 is formed in the side wall of the rotating air pipe 12, the rotating air pipe 12 includes a sealing end and a communicating end, a main pipe 10 is arranged on the outer side of the sieve plate 7, connecting pipe bodies 11 corresponding to the rotating air pipes 12 one by one are arranged on the side wall of the main pipe 10, the communicating end of the rotating air pipe 12 is inserted into the corresponding connecting pipe body 11, and the ventilating device ventilates air into the rotating air pipe 12 through the main pipe 10.
As shown in fig. 3 to 8, when the air blowing in the blowing holes 9 is not required, the rotary air pipe 12 may be rotated so that the rotary holes 18 are not communicated with the connection holes 8, thereby preventing the coal from entering the ventilation holes 19 during the screening process.
As shown in fig. 3-8, a fixed plate 20 is fixed at the sealed end of the rotary air pipe 12, a driven gear 13 is fixed at the communicating end of the rotary air pipe, a telescopic cylinder 14 is fixed on the main pipe 10, a driving rack 15 is fixed on the piston rod of the telescopic cylinder 14, and each driven gear 13 is meshed with the driving rack 15. The telescopic cylinder 14 can drive the driving rack 15 to move transversely, so as to drive each driven gear 13 to rotate, and each driven gear 13 drives the corresponding rotating air pipe 12 to rotate, so as to control the rotating angle of the rotating air pipe 12.
As shown in fig. 4, a fixed block 16 is fixed on the outer wall of the sieve plate 7, and a sliding slot 17 through which the driving rack 15 passes is formed on the fixed block 16.
Example two:
as shown in fig. 9, the difference between the first embodiment and the second embodiment lies in that the supporting seats 4 are arranged in different manners, four supporting seats 4 are arranged at four corners of the base 3, the first driving shaft 25 is rotatably connected between the two supporting seats 4 located in the front, the second driving shaft 21 is rotatably connected between the two supporting seats 4 located in the back, two driving cams 6 are fixed on the first driving shaft 25 and the second driving shaft 21, the four driving cams 6 are respectively arranged at four corners of the sorting bed body 1, the driving motor 5 drives the first driving shaft 25 to rotate, the first driving shaft 25 is fixed with the driving sprocket 24, the second driving shaft 21 is fixed with the driven sprocket 22, and the connecting chain 23 is connected between the driving sprocket 24 and the driven sprocket 22.
The driving motor 5 drives the first driving shaft 25 to rotate, the rotation of the first driving shaft 25 drives the driving sprocket 24 to rotate, the rotation of the driving sprocket 24 drives the driven sprocket 22 to rotate through the connecting chain 23, and the driven sprocket 22 drives the second driving shaft 21 to rotate. Therefore, one driving motor 5 drives the four driving cams 6 to rotate, and the structure is simpler.
Compared with the prior art, the dry separation system suitable for separating the slack coal provided by the invention initiatively provides that the fixed block is fixed on the outer wall of the sieve plate, and the fixed block is provided with the chute for the driving rack to pass through. The setting of spout and fixed block has further promoted the self-cleaning function of sieve, has reduced the possibility of sieve mesh jam. Furthermore, four supporting seats are arranged at four corners of the base respectively, so that the site adaptability of the dry separation system for separating the slack coal is improved. The working place where the dry separation system is located is generally near a coal outlet well head of a coal mine, and the coal mine is generally located in a suburban area or a field and is rarely or not located in an urban area or a residential living area, so that the geological condition of the coal mine is poor; in order to reduce the production cost and improve the production efficiency, basically, the separation equipment is installed according to local conditions, and the arrangement of the supporting seat improves the site adaptability of the dry separation system for separating the slack coal.
Compared with the prior art, the dry separation system suitable for separating the slack coal is pioneering in that a first driving shaft is rotatably connected between the two supporting seats positioned in front, a second driving shaft is rotatably connected between the two supporting seats positioned in the rear, the first driving shaft and the second driving shaft are both fixedly provided with two driving cams, the four driving cams are respectively arranged at four corners of a separation bed body, the driving motor drives the first driving shaft to rotate, a driving chain wheel is fixedly arranged on the first driving shaft, a driven chain wheel is fixedly arranged on the second driving shaft, and a connecting chain is connected between the driving chain wheel and the driven chain wheel. The design completely eliminates the possibility of blocking the sieve pores in the process of sorting the slack coal, and improves the continuous non-stop working performance of the dry sorting system suitable for sorting the slack coal.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The dry separation system suitable for separating the slack coal comprises a separation bed body and is characterized by further comprising a driving device, a sieve plate and a feeding device, wherein the driving device is a driving motor, sieve holes are distributed in the sieve plate, the sieve plate with the sieve holes is installed on the separation bed body, the feeding device conveys the slack coal to the separation bed body, and the separation bed body is driven by the driving device to vibrate and is used for separating the slack coal.
2. The dry separation system for separating slack coal according to claim 1, wherein the drive motor is a vibration device or an excitation device.
3. The dry separation system for separating slack coal according to claim 2, wherein the dry separation system for separating slack coal further comprises a pre-stage separation system which is a dry separation system for separating raw coal and performs coarse separation on raw coal having a large particle size, and the coarse-separated small-particle size lump coal and slack coal are fed to a post-stage slack coal separation system.
4. The dry separation system for separating slack coal as claimed in claim 3 wherein the pre-stage separation system has a lump coal deflector system for the separation and deflection of lump coal.
5. The dry separation system for separating slack coal according to claim 1, wherein the dry separation system for separating slack coal further comprises a clean coal discharge end, a middlings discharge end and a gangue discharge end for discharging separated clean coal, middlings and gangue respectively.
6. The dry separation system for separating slack coal according to claim 1, further comprising a base, wherein a plurality of hinged rods are hinged to the base, one end of each hinged rod, which is far away from the base, is hinged to the separation bed body, a supporting base is fixed to the base, a driving motor is fixed to the supporting base, a driving cam is fixed to a rotating shaft of the driving motor, the driving cam is arranged below the separation bed body, and the outer wall of the driving cam is abutted to the lower side surface of the separation bed body.
7. The dry separation system for separating slack coal of claim 6 wherein there are two supports, one on each of the front and rear sides of the base.
8. The dry method sorting system for sorting slack coal according to claim 6, wherein a sieve plate is installed on the sorting bed body, a plurality of rows of sieve hole groups are arranged on the sieve plate, a plurality of groups of sieve hole groups are sequentially arranged along the transverse direction of the sieve plate, vent holes are arranged between two adjacent groups of sieve hole groups, the vent holes are communicated with the sieve holes in the adjacent sieve hole groups through connecting holes, and a ventilating device is connected to the vent holes.
9. The dry separation system for separating slack coal according to claim 8, wherein a rotary air pipe is rotatably connected in each air vent, a rotary hole corresponding to the connecting hole is formed in a side wall of the rotary air pipe, the rotary air pipe comprises a sealing end and a communicating end, a header pipe is arranged on an outer side of the sieve plate, connecting pipe bodies corresponding to the rotary air pipes one by one are arranged on a side wall of the header pipe, the communicating end of the rotary air pipe is inserted into the corresponding connecting pipe body, and the ventilating device ventilates the rotary air pipe through the header pipe.
10. The dry separation system for separating slack coal according to claim 9, wherein a fixed plate is fixed to a sealed end of the rotary air pipe, a driven gear is fixed to a communicating end of the rotary air pipe, a telescopic cylinder is fixed to the header pipe, a driving rack is fixed to a piston rod of the telescopic cylinder, and each driven gear is meshed with the driving rack.
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| CN202111516011.1A CN114210552B (en) | 2021-12-06 | 2021-12-06 | Dry method sorting system suitable for sorting slack coal |
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| CN202111516011.1A CN114210552B (en) | 2021-12-06 | 2021-12-06 | Dry method sorting system suitable for sorting slack coal |
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| CN114210552B CN114210552B (en) | 2022-09-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115400953A (en) * | 2022-08-16 | 2022-11-29 | 浙江吉瑞通新材料有限公司 | Finished product molecular sieve delivery performance detection device and use method |
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| CN214132636U (en) * | 2020-12-31 | 2021-09-07 | 江阴市顺通工程机械有限公司 | Vibrating screen for asphalt mixing plant |
| CN113171985A (en) * | 2021-05-30 | 2021-07-27 | 唐山神州机械集团有限公司 | Full-grain cascade combined sorting system and process |
Cited By (1)
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| CN115400953A (en) * | 2022-08-16 | 2022-11-29 | 浙江吉瑞通新材料有限公司 | Finished product molecular sieve delivery performance detection device and use method |
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| CN114210552B (en) | 2022-09-06 |
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Denomination of invention: A dry separation system suitable for sorting final coal Granted publication date: 20220906 Pledgee: China Merchants Bank Limited by Share Ltd. Tangshan branch Pledgor: Tangshan Shenzhou Machinery Group Co.,Ltd. Registration number: Y2024980001803 |
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