CN114132767A - Clean coal discharge port device for dry intelligent coal preparation system - Google Patents
Clean coal discharge port device for dry intelligent coal preparation system Download PDFInfo
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- CN114132767A CN114132767A CN202111441649.3A CN202111441649A CN114132767A CN 114132767 A CN114132767 A CN 114132767A CN 202111441649 A CN202111441649 A CN 202111441649A CN 114132767 A CN114132767 A CN 114132767A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/12—Sieving bulk materials during loading or unloading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/14—Pulverising loaded or unloaded materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
- B65G69/186—Preventing escape of dust by means of non-sealed systems with aspiration means
Abstract
The invention discloses a clean coal discharge port device for a dry intelligent coal preparation system, which is applied to a clean coal discharge port in the dry intelligent coal preparation system and comprises a bottom plate and a receiving frame, wherein the bottom plate is provided with two sliding grooves, the bottom of the receiving frame is fixedly provided with four universal wheels, two of the universal wheels are arranged in one sliding groove, the other two universal wheels are arranged in the other sliding groove, a telescopic device is fixed on the bottom plate and is detachably connected with the receiving frame, the telescopic device comprises a telescopic cylinder fixed on the bottom plate, a fixed block is fixed on a piston rod of the telescopic cylinder, a limit rod penetrates through the fixed block, a limit block corresponding to the limit rod is fixed on the receiving frame, and a limit hole for the limit rod to be inserted is formed in the limit block. A clean coal discharge gate device for dry process intelligence coal preparation system can ensure to make even connecing of clean coal connect the material frame in, has promoted the efficiency that dry process intelligence coal preparation system handled the clean coal, has solved prior art 'intestinal obstruction' problem.
Description
Technical Field
The invention belongs to the technical field of dry coal separation, and particularly relates to a clean coal discharge port device for a dry intelligent coal separation system.
Background
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 dry coal dressing process is popularized in a large scale in all dimensions, and particularly is widely popularized in the sorting of raw coal with large treatment capacity. The applicant finds that the intelligent dry coal preparation process and the intelligent dry coal preparation system have wide application prospects in the exploitation of various strip mines in the process popularization of the dry coal preparation as a catcher of the dry coal preparation, and the intelligent dry coal preparation process and the intelligent dry coal preparation system are also suitable for the exploitation of the strip mines, but clean coal discharging and collecting components in the intelligent dry coal preparation process and the intelligent dry coal preparation system have certain problems. For example, clean coal selected by the coal preparation device is discharged from the lower part of the clean coal outlet and falls into the receiving frame below the clean coal outlet, but the clean coal is usually accumulated in the middle of the receiving frame, so that one receiving frame cannot be filled with the clean coal, and when the clean coal material accumulated in the middle of one receiving frame is too high, the clean coal is frequently scattered in other places, so that the subsequent follow-up process is affected.
Disclosure of Invention
According to the technical problems in the prior art, aiming at the defects in the prior art, the invention provides a clean coal discharge hole device for a dry intelligent coal preparation system, which is applied to a clean coal discharge hole in the dry intelligent coal preparation system and can ensure that clean coal is uniformly received in a receiving frame.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a clean coal discharge gate device for dry process intelligence coal preparation system, its clean coal row discharge gate department of being applied to in the dry process intelligence coal preparation system, it includes the bottom plate and connects the material frame, be equipped with two spouts on the bottom plate, the bottom of connecing the material frame is fixed with four universal wheels, and wherein two universal wheels are installed in one of them spout, and two other universal wheels are installed in another spout, be fixed with the telescoping device on the bottom plate, the telescoping device with connect and to dismantle between the material frame and be connected.
Further, the telescoping device is including fixing the telescopic cylinder on the bottom plate, be fixed with the fixed block on the piston rod of telescopic cylinder, wear to be equipped with the gag lever post on the fixed block, be fixed with the stopper that corresponds with the gag lever post on the material receiving frame, be equipped with the spacing hole that supplies the gag lever post to peg graft on the stopper.
Furthermore, the number of the telescopic devices is two, and the two telescopic devices are respectively arranged on the left side and the right side of the material receiving frame.
Furthermore, a fixed plate is fixed at one end, away from the limiting block, of the limiting rod, and a limiting spring is arranged between the fixed plate and the fixed block.
Furthermore, the fixing plate is made of metal, an electromagnet is fixed on the bottom plate, and the electromagnet is arranged on one side, back to the material receiving frame, of the fixing plate.
Preferably, the fixed block is provided with a guide groove, and the guide groove is provided with a guide inclined plane for guiding the limiting rod into the limiting hole.
The handle is fixed on the front side and the rear side of each material receiving frame, jacks are arranged on the handles, and the two inserting rods can be respectively inserted into the jacks of the handles between the two material receiving frames.
Furthermore, the dry intelligent coal separation system comprises a modularized separation module and an intelligent control system, and realizes a serialized separation and combination design aiming at raw coal; the modular sorting module further comprises a transporting module, a crushing module, a sorting module, a purifying module and an air supply module, wherein the transporting module, the crushing module, the sorting module, the purifying module and the air supply module all adopt closed operation.
Preferably, the whole dry intelligent coal preparation system adopts a skid-mounted design, the transportation module, the crushing module, the separation module, the purification module and the air supply module which form the dry intelligent coal preparation system are independently transported to the site, and the transportation module, the crushing module, the separation module, the purification module and the air supply module are connected on the site to be capable of being put into operation.
Further, the purification module adopts a full cloth bag dust removal system to realize air cleaning and separation; the circulating air of a main fan of the purification module is air filtered and purified by a cloth bag, and an air quantity distribution regulation and control device is arranged in a negative pressure system of the induced draft fan and a working system of the main fan; and the main fan circulating air in the purification module keeps the fed materials loose, the induced draft fan keeps the negative pressure operation of the separation main machine, and the dusty airflow is completely filtered by the cloth bag.
Compared with the prior art, the clean coal discharge hole device for the dry intelligent coal preparation system has the following beneficial effects:
1. the receiving frame is pushed to the lower part of the clean coal outlet, the telescopic device moves the receiving frame back and forth, and the received clean coal is shaken to be uniformly arranged in the receiving frame;
2. the electromagnet can facilitate the limiting rod to move out of the limiting hole, so that the next material receiving frame is replaced; a clean coal discharge gate device for dry process intelligence coal preparation system can ensure to make even connecing of clean coal connect the material frame in, has promoted the efficiency that dry process intelligence coal preparation system handled the clean coal, has solved prior art 'intestinal obstruction' problem.
Drawings
Fig. 1 is a schematic view of the installation position of a clean coal discharge port receiving device in a dry coal preparation device.
Fig. 2 is a schematic structural view of a clean coal discharge port receiving device.
Fig. 3 is a partial enlarged view at I in fig. 2.
Fig. 4 is a partial enlarged view at II in fig. 2.
Fig. 5 is a top view of fig. 2.
Fig. 6 is a cross-sectional view at a-a in fig. 5.
FIG. 7 is a schematic structural diagram of a dry intelligent coal preparation system.
Fig. 8 is a schematic structural diagram of the two-wing type intelligent rolling type damage system in fig. 7.
Fig. 9 is a schematic diagram of a double-wing structure of the double-wing intelligent rolling type damage system in fig. 8.
Fig. 10 is a schematic view of the roll conveyor mechanism of fig. 8.
Reference numerals: 1. a clean coal outlet; 2. a material receiving device; 3. a handle; 4. a jack; 5. a material receiving frame; 6. a connecting plate; 7. inserting a rod; 8. a telescopic cylinder; 10. a universal wheel; 11. a base plate; 12. a chute; 13. a guide ramp; 14. a limiting block; 15. a guide groove; 16. a fixed block; 17. a limiting spring; 18. a limiting rod; 19. a fixing plate; 20. an electromagnet; 21. a limiting hole; 22. a raw coal crushing scraper conveyor; 23. a belt conveyor; 24. grading and screening; 25. a pulverized coal belt conveyor; 26. skid-mounted dry separation machines; 27. a fine clean coal scraper conveyor; 28. a slack coal scraper conveyor; 29. a final gangue scraper conveyor; 30. a blower; 31. a bag-type dust collector; 32. an induced draft fan; 33. lump coal belt conveyors; 34. an IDS dry separator; 35. a lump clean coal belt conveyor; 36. a lump gangue belt conveyor; 42. a drive motor; 43. a speed reducer; 44. a head pulley; 45. a squeegee; 46. a scraper chain; 47. a crushing motor; 48. a V-belt; 49. a wing plate; 50. a tail wheel; 51. a guard plate; 2601. a rolling device; 52. a lower trough box; 53, loading the tank; 54. and a hydraulic prop.
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, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the invention without any inventive work belong to the protection scope of the patent of the invention.
The invention provides a clean coal discharge port device for a dry intelligent coal preparation system, which is applied to a clean coal discharge port in the dry intelligent coal preparation system.
Fig. 1 to 6 illustrate a specific structure of a clean coal discharge port device for a dry intelligent coal preparation system according to the present invention, and fig. 7 to 10 illustrate a dry intelligent coal preparation system to which the clean coal discharge port device according to the present invention is applied.
As shown in fig. 1, the installation position of the clean coal discharge port receiving device in the dry coal preparation device is shown, the clean coal discharge port device for the dry intelligent coal preparation system comprises a clean coal outlet 1 and a receiving device 2, and the receiving device 2 is installed below the clean coal outlet 1 and is specifically installed on a clean coal discharge passage. Furthermore, a clean coal discharge port device for a dry intelligent coal preparation system is shown in fig. 2, and comprises a bottom plate 11 and a material receiving frame 5, wherein two sliding grooves 12 are formed in the bottom plate 11, the two sliding grooves 12 extend along the length direction of the bottom plate 11, four universal wheels 10 are fixed at the bottom of the material receiving frame 5, two of the universal wheels 10 are installed in one of the sliding grooves 12, the other two universal wheels 10 are installed in the other sliding groove 12, a telescopic device is fixed on the bottom plate 11, and the telescopic device is detachably connected with the material receiving frame 5; when the receiving frame 5 is pushed to the lower part of the clean coal outlet 1, the receiving frame 5 moves back and forth by the telescopic device, clean coal is discharged from the lower part of the clean coal outlet 1 and falls into the receiving frame 5, and the receiving frame 5 moves back and forth by the telescopic device, so that the received clean coal is uniformly in the receiving frame 5 after shaking.
As shown in fig. 2, fig. 3 and fig. 4, the telescopic device includes a telescopic cylinder 8 fixed on the bottom plate 11, a fixed block 16 is fixed on a piston rod of the telescopic cylinder 8, a limit rod 18 penetrates through the fixed block 16, a limit block 14 corresponding to the limit rod 18 is fixed on the material receiving frame 5, a limit hole 21 for the insertion of the limit rod 18 is arranged on the limit block 14, after the limit rod 18 is inserted into the limit hole 21, the piston rod of the telescopic cylinder 8 can move back and forth to drive the material receiving frame 5 to shake back and forth, when the clean coal in the material receiving frame 5 is about to be filled, the limit rod 18 is moved out of the limit hole 21, the material receiving frame 5 filled with the clean coal can be pushed away, then the empty material receiving frame 5 can be moved to the lower side of the clean coal outlet 1, the limit rod 18 is inserted into the limit hole 21 of the fixed block 16 of the empty material receiving frame 5, and the empty material receiving frame 5 receives the material.
As shown in fig. 6, the number of the telescopic devices is two, and the two telescopic devices are respectively arranged on the left side and the right side of the material receiving frame 5, so that the material receiving frame 5 can move back and forth more stably.
Continuing to refer to fig. 6, a fixing plate 19 is fixed at one end of the limiting rod 18 far away from the limiting block 14, a limiting spring 17 is arranged between the fixing plate 19 and the fixing block 16, when the limiting rod 18 is inserted into the limiting hole 21, the limiting spring 17 is in an original long state, and the elastic force of the limiting spring 17 needs to be overcome when the limiting rod 18 is completely moved out of the limiting hole 21.
After the material receiving is finished, in order to facilitate the limiting rod 18 to move out of the limiting hole 21, the fixing plate 19 is made of metal, the bottom plate 11 is fixed with the electromagnet 20, the electromagnet 20 is arranged on one side, back to the material receiving frame 5, of the fixing plate 19, the electromagnet 20 is electrified, the fixing plate 19 can be adsorbed by the electromagnet 20, and therefore the limiting rod 18 can automatically move out of the limiting hole 21.
As shown in fig. 4, the fixing block 16 is provided with a guide groove 15, the guide groove 15 is provided with a guide inclined surface 13 for guiding the limiting rod 18 into the limiting hole 21, when the receiving frame 5 is pushed into the limiting rod 18, the limiting rod 18 moves towards the limiting hole 21 along the guide inclined surface 13, the limiting spring 17 is in a stretching state at this time, and after the limiting rod 18 is aligned with the limiting hole 21, the limiting spring 17 drives the limiting rod 18 to be inserted into the limiting hole 21.
As shown in fig. 2, the material receiving frame further comprises a connecting plate 6 and inserting rods 7 fixed at two ends of the connecting plate 6, handles 3 are fixed on the front side and the rear side of the material receiving frame 5, inserting holes 4 are formed in the handles 3, and the two inserting rods 7 can be respectively inserted into the inserting holes 4 of the handles 3 between the two material receiving frames 5, so that the two material receiving frames 5 are connected together.
When the material receiving of one material receiving frame 5 is finished, two inserting rods 7 are respectively inserted into the inserting holes 4 of the handle 3 between the two material receiving frames 5, so that the two material receiving frames 5 are connected together, then the electromagnet 20 is electrified, the electromagnet 20 can adsorb the fixed plate 19, so that the limiting rod 18 automatically moves out of the limiting hole 21, the material receiving frames 5 which are subjected to material receiving can move out of the lower part of the clean coal outlet 1, the connecting plate 6 drives the empty material receiving frame 5 to gradually move to the lower part of the clean coal outlet 1 in the moving process, the electromagnet 20 is powered off, the limiting rod 18 guides the inclined plane 13 to move towards the limiting hole 21 along the upper fixed block 16 of the empty material receiving frame 5, the limiting spring 17 is in a stretching state, the limiting rod 18 is driven by the limiting spring 17 to be inserted into the limiting hole 21 until the limiting rod 18 is aligned with the limiting hole 21, so that the piston rod of the telescopic cylinder 8 is connected with the empty material receiving frame 5, then shift out jack 4 with two inserted bars 7 simultaneously to with two material frame 5 separations that connect, telescopic cylinder 8 can drive empty material frame 5 round trip movement that connects this moment, thereby the clean coal that will catch is through rocking, evenly in connecing material frame 5.
The dry intelligent coal preparation system shown in fig. 7 is suitable for separation of full-grain-level raw coal of strip mine, and is used in cooperation with a clean coal discharge port device for the dry intelligent coal preparation system, so that the treatment efficiency of the dry intelligent coal preparation system is improved, and the intestinal obstruction problem is solved.
The 'whole-size raw coal' sorting in the dry intelligent coal separation system shown in fig. 7 is substantially improved and greatly different from the 'whole-size-fraction' sorting previously used by the applicant. The "whole-grain raw coal" classification technique of the present invention has never substantially appeared in the prior art. The whole particle fraction separation used previously by the applicant refers to and achieves 0mm-80mm low-quality coal dry separation; the whole-grain-size raw coal sorting refers to the sorting of whole-system authigenic raw coal, and comprises the sorting of all grain-size raw coal; for the giant lump coal with the grain diameter of more than 31 meters excavated from the mine pit, firstly carrying out primary crushing to obtain lump coal with the grain diameter of less than 31 meters, and then entering the secondary crushing step of the invention to obtain the lump coal with the grain diameter of less than 531mm in the secondary crushing stage; the raw coal of all size fractions includes small-particle-size lump coal and slack coal in addition to the above lump coal.
The dry intelligent coal preparation system comprises a modular separation module and an intelligent control system which are matched, and realizes a serialized separation and combination design aiming at raw coal; the modular sorting module specifically comprises main modules such as a conveying module, a crushing module, a sorting module, a purifying module and an air supply module, and all the main modules operate in a closed mode. The whole dry intelligent coal preparation system preferably adopts a skid-mounted design, each main module forming the dry intelligent coal preparation system is independently transported to the site, and the modules are connected on the site to be put into operation. Concrete is not used in the installation process of the dry intelligent coal preparation system, a steel structure module is completely used, and the dry intelligent coal preparation system can be rapidly put into use all the year round.
A sorting host of a sorting module in the dry intelligent coal sorting system adopts a super dry sorting machine (a large-throughput dry sorting machine), the unit area throughput is increased by 40%, the energy of a main sorting system is saved by 51%, and the national requirements of energy conservation and emission reduction are met. The purification module adopts a full cloth bag dust removal system to realize air cleaning and separation; the circulating air of a main fan of the purification module is air filtered and purified by a cloth bag, and an air quantity distribution regulation and control device is arranged in a negative pressure system of the induced draft fan and a working system of the main fan; the main fan circulating air keeps the feeding loose, the induced draft fan keeps the negative pressure operation of the sorting host, the dust-containing air flow is filtered by the cloth bag, and the emission concentration is far lower than the dust emission standard required by the state.
The dry intelligent coal preparation system adopts the bag dust removal and the spray dust reduction to process dust together, thereby avoiding the flying of coal dust. If the top of the coal receiving processor is closed, wet spraying is adopted in summer for dust reduction. In winter, the dry cloth bag is adopted for dust removal, so that the environmental protection standard of the coal preparation system is guaranteed. A special dust remover is matched with the screening machine, so that the problem of screening dust is solved. The fine powder collected by the dust remover adopts a humidifying and stirring process, and the pulverized coal is mixed into a clean coal product according to the calorific value. The dry intelligent coal preparation system can be provided with a pre-selection powder removing system and a post-selection deep powder removing system according to the coal quality condition. When the sand or coal powder content is larger, the dust removal before selection can greatly reduce the dust raising amount and improve the working environment. When the coal quality is good, the raw coal can be separated without de-powdering, and the recovery rate of clean coal is improved. The process flow is flexible and can realize full-grade selection or partial selection according to coal quality adjustment.
The dry intelligent coal preparation system adopts the collocation of the intelligent control system, and all the intelligent control system adopts digital management to share information with a coal mine dispatching room center and is linked online; in the intelligent control adopted by the dry intelligent coal preparation system, each module is provided with multiple measurement and control devices and data analysis software, so that an operator is not required, and the design of a black light factory is realized.
In addition, the dry intelligent coal preparation system preferably comprises a double-wing turnover type raw coal receiving system, an IDS X-ray lump coal dry separation machine, a high-throughput dry separation machine, a purification and dust removal system (a purification system or a purification circulating system) and a belt comprehensive protection system in a transportation module.
The double-wing turnover type raw coal receiving system automatically adjusts the speed of the scraper according to the feeding amount and the bearing capacity of subsequent equipment, and keeps the optimal feeding amount state of the system under the conditions of keeping the sorting effect and allowing the load rate of the subsequent equipment; when oversized materials and overlong materials exist, sound and light alarm is realized, and the automatic cleaning is realized by matching with a mechanical arm; and the side-turning device is automatically started and stopped by detecting the load of the unloading vehicle and the scraper crusher. Alarm shutdown for overload and other faults.
The IDS X-ray lump coal dry separation machine automatically measures and displays the quantity of each product of the raw coal classifying screen, and is favorable for adjusting the feeding quantity of each separation device to the nearest feeding quantity range of all parallel single machines. For the IDS sorting machine, an online ash measuring system can be simultaneously installed on an incoming material and a waste belt, and the actions of carrying out abnormal conditions of coal in waste and timely and automatically adjusting sorting parameters are carried out. The high-throughput dry separator detects and displays the amount of the fed material, clean coal and gangue, and monitors the load rate of the equipment. And carrying out online detection on the ash content of the raw coal and the clean coal. And automatically adjusting the operation parameters of the dry separator according to the ash content change of the raw coal and the clean coal. The adjusting parameters comprise feeding amount, air distribution amount, bed surface angle, medium coal amount control turning plate and the like.
The purification and dust removal system adopts a full cloth bag for dust removal and clean air for coal dressing; and an automatic air quantity distribution regulating and controlling device is arranged in the negative pressure induced air system and the circulating air working system. The purifying and dedusting system automatically detects the dust concentration at the inlet and the outlet of the dust remover and the pressure difference between the inlet and the outlet, realizes automatic back blowing and vibration of each air chamber aiming at the resistance change and keeps the best working state of the dust remover. The pulverized coal after dust removal is firstly humidified and stirred to measure the moisture of the pulverized coal and control the water injection quantity. The raw coal preparation and discharge points are provided with closed dust suction points, so that the dust concentration detection and the linkage control of the spraying device are realized, and the spraying device is started when the flying dust reaches a certain value and can control the water quantity.
The belt comprehensive protection system in the transport module automatically measures the belt feeding amount, controls the frequency conversion and the speed regulation to keep the feeding stable, and detects, alarms, controls and protects the belt deviation, the belt tearing and the like.
As shown in fig. 7, the dry intelligent coal preparation system comprises a raw coal crushing scraper conveyor 22, a belt conveyor 23, a classifying screen 24, a skid-mounted dry separator 25, a skid-mounted dry separator 26, a fine clean coal scraper conveyor 27, a fine middle coal scraper conveyor 28, a fine gangue scraper conveyor 29, a blower 30, a bag-type dust collector 31, an induced draft fan 32, a lump coal belt conveyor 33, an IDS dry separator 34, a lump clean coal belt conveyor 35 and a lump gangue belt conveyor 36.
The raw coal crushing scraper conveyor 22 is used for crushing raw coal and transferring the crushed raw coal to the belt conveyor 23 in a scraper conveying mode, crushed coal blocks are conveyed to the grading sieve 24 through the belt conveyor 2, the grading sieve 24 is arranged in a raw coal screening workshop, and the grading sieve 24 is used for screening the raw coal and dividing the raw coal into two parts of raw coal with the particle size of more than 6mm and the particle size of less than or equal to 6 mm; a fully-sealed purification and dust removal system is arranged on the raw coal screening workshop and is used for removing dust in the raw coal screening workshop. The raw coal with the particle size less than or equal to 6mm is directly sorted into slack coal and lump coal, and the sorted clean coal is collected, stored and transported by adopting the device shown in figure 1.
Further, a skid-mounted dry separator 25 and a lump coal belt conveyor 33 are arranged at the rear end of the classifying screen 24, the skid-mounted dry separator 25 is used for conveying raw coal from the classifying screen 24 to the skid-mounted dry separator 26, the lump coal belt conveyor 33 is used for conveying lump coal obtained by screening through the classifying screen 24 to an IDS dry separator 34, and the IDS dry separator 34 is used for separating the lump coal with the particle size of 80-531 mm. Preferably, the IDS dry separator 34 is an IDS X-ray intelligent lump coal separator, the lump clean coal separated by the IDS dry separator 34 is conveyed to a clean lump coal storage and transportation machine through a lump clean coal belt conveyor 35, and the gangue separated by the IDS dry separator 34 is conveyed to a gangue storage and transportation machine through a lump gangue belt conveyor 36 or is directly backfilled into a pit of the open pit mine. The skid-mounted dry separator 26 is used for separating raw coal with the particle size of 0-80mm, the separated clean coal with the particle size of 0-80mm is conveyed to a clean coal discharge port through a fine clean coal scraper conveyor 27, the clean coal discharged from the clean coal discharge port enters a clean coal discharge port receiving device, the clean coal discharge port device for the dry intelligent coal separation system comprises a clean coal outlet 1 and a receiving device 2, and the receiving device 2 is installed on a clean coal discharge passage of the clean coal outlet 1. In addition, the sorted waste rock is conveyed to a waste rock bin to be transported through a waste rock scraper conveyor 29, and the waste rock is backfilled to an open pit or used for building materials and the like after being transported; the sorted middlings are conveyed to a middling bunker through a slack middling scraper conveyor 28, and enter secondary sorting after being transported through the middling bunker. Furthermore, a fully-sealed purification and dust removal system is arranged on the skid-mounted dry separator 26, so that the whole system has no external leakage pollutants, the purification and dust removal system removes dust through a bag-type dust collector 31, dust-containing gas from the skid-mounted dry separator 26 is blown into the bag-type dust collector 31 through a blower 30, and clean gas filtered by the bag-type dust collector 31 is returned to the skid-mounted dry separator 26 through an induced draft fan 32 for use.
The two-wing intelligent rolling type damage system shown in fig. 8 comprises a feeding device with a two-wing structure, a scraper type forced material conveying mechanism, a rolling type crushing mechanism and an intelligent material quantity detection mechanism, wherein the feeding device with the two-wing structure pours materials arranged on two wing plates onto a conveyor belt of the scraper type forced material conveying mechanism, the scraper type forced material conveying mechanism applies parallel driving force to the materials from the feeding device with the two-wing structure, the materials are conveyed into the rolling type crushing mechanism and are crushed, and the intelligent material quantity detection mechanism is used for detecting the material quantity sent into the feeding device with the two-wing structure in unit time.
Further, as can be seen from the schematic view of the double-wing structure of the double-wing intelligent rolling type damage system shown in fig. 9, the feeding device of the double-wing structure includes wing plates 49 symmetrically arranged left and right, hydraulic struts 54 supported under the wing plates 49, one ends of the hydraulic struts 54 are connected to the middle upper portions of the wing plates 49, the other ends of the hydraulic struts 54 are connected between the lower tank 52 and the upper tank 53, and the lifting, opening and closing of the wing plates 49 are realized by the expansion and contraction of the hydraulic struts 54. As shown in fig. 10, a scraper chain 46 is provided at the upper part of the upper tank 53, and the material fallen down by the wing plate 49 is directly fallen down onto the scraper chain 46 and transported to the crushing mechanism through the scraper chain 46. The structure shown in fig. 9 can be obtained from the view of fig. 8 "a-a", and the structure shown in fig. 10 can be obtained from the view of fig. 8 "B-B".
Preferably, a support plate is provided between the lower tank 52 and the upper tank 53, the outer side wall of the lower tank 52 is connected with the outer side wall of the upper tank 53 through the support plate, and the wing plate 49 is pivotally connected with the upper end of the support plate, that is, the wing plate 49 can rotate around the upper end point of the support plate through the pivoting action. More preferably, an intelligent material quantity detection mechanism is arranged on the side surface of the wing plate 49, and the intelligent material quantity detection mechanism is used for detecting the material quantity sent in the unit time of the feeding device with the double-wing structure or measuring the material quantity sent in any operation time. Furthermore, the intelligent material quantity detector adopts an infrared metering detection device, infrared measurement columns are arranged on two sides of a wing plate on the material inlet side in pairs, optical data such as the speed of the fed materials and the material section are detected through the infrared measurement columns, and the data obtained by the infrared measurement columns are preferably transmitted to a central control platform in a wireless or wired mode for monitoring and processing. Whether the materials are accumulated or not or whether the treatment capacity of the scraper type forced material conveying mechanism is not adaptive or not can be detected through the intelligent material quantity detector.
Fig. 8 shows a damaged system of two wing formula intelligence roll-compaction, scraper blade formula forced delivery mechanism wherein includes driving motor 42, speed reducer 43, head pulley 44, scraper blade 45, scrape chain 46 and tailwheel 50, driving motor 42 adopts high-power alternating current motor, driving motor 42 is used for driving speed reducer 43 and drives head pulley 44 and rotate, the power of its output transmits for head pulley 44 via speed reducer 43, head pulley 44 is used for driving scraper chain 47, make scraper chain 47 remove in roll-compaction formula damaged system main part conveyer trough, and then drive the material antedisplacement. Head wheel 44, scraper 45, scraper chain 46 and tailwheel 50 set up on a straight line, that is head wheel 44, scraper 45, scraper chain 46 and tailwheel 50 set up along material direction of transportation, come the direction of advance of coordinated adjustment material through head wheel 44 and tailwheel 50, scraper chain 46 connects between head wheel 44 and tailwheel 50, rotates through head wheel 44 and drives the rotation of scraper chain 46, set up scraper 45 on scraper chain 46, scraper 45 drives the material transport and advances.
Further, be provided with the putty detector in the damaged system main part conveying trough of roll-to-roll formula, it is used for monitoring scraper conveyor main part conveying trough in whether the material blocks up. The scraper chain 47 is used for connecting a scraper vertically arranged with a rolling type damaged system main body conveying trough, and the scraper pushes the animal material to move forwards under the driving of the scraper chain 47. And meanwhile, a broken chain indicator is arranged in the conveying trough of the rolling type damage system main body and used for monitoring whether the scraper chain is broken or not. The rolling type damaged system main body conveying trough, namely a box body is used for bearing the scraper 46, the scraper chain 47 and materials. Further, a tail pulley 50 is provided at an end of the rolling type damage system main body conveying chute, the scraper chain is wound around the tail pulley 50, and the tail pulley 50 is used for changing the direction of the scraper chain.
In another embodiment, a rolling type crushing mechanism is arranged in the material conveying forward direction, the rolling type crushing mechanism comprises a rolling device 2601, a triangular belt 48, a crushing motor 47 and a protection plate 51, power output by the crushing motor 47 is transmitted to the rolling device 2601 through the triangular belt 48, the rolling device 2601 rolls and crushes large coal blocks, and the one-way protection plate 51 is arranged at the front end of the rolling device 2601, so that the entering large coal blocks can only advance along the material conveying direction. The guard plate 51 has two functions, namely, preventing crushed coal blocks collapsed in the grinding and crushing process from escaping from the grinding device, and preventing large coal blocks entering the grinding process from returning. Further, a tensioning mechanism for appropriately adjusting the degree of tension of the scraper chain 46 is provided at the tail pulley 50.
It should be noted that each component of the dry intelligent coal preparation system adopts a redundant design, and the work coordination among the separation, screening and transportation of each component is further strengthened.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a clean coal discharge gate device for dry process intelligence coal preparation system, its characterized in that, its clean coal discharge gate department of being applied to in the dry process intelligence coal preparation system, it includes the bottom plate and connects the material frame, be equipped with two spouts on the bottom plate, the bottom of connecing the material frame is fixed with four universal wheels, and wherein two universal wheels are installed in one of them spout, and two other universal wheels are installed in another spout, be fixed with the telescoping device on the bottom plate, the telescoping device with connect and to dismantle the connection between the material frame.
2. The clean coal discharge port device for the dry intelligent coal preparation system according to claim 1, wherein the expansion device comprises an expansion cylinder fixed on the bottom plate, a fixed block is fixed on a piston rod of the expansion cylinder, a limit rod penetrates through the fixed block, a limit block corresponding to the limit rod is fixed on the material receiving frame, and a limit hole for the limit rod to be inserted is formed in the limit block.
3. The clean coal discharge hole device for the dry intelligent coal preparation system according to claim 1, wherein two expansion devices are provided, and the two expansion devices are respectively arranged on the left side and the right side of the material receiving frame.
4. The clean coal discharge port device for the dry intelligent coal preparation system according to claim 2, wherein a fixing plate is fixed at one end of the limiting rod away from the limiting block, and a limiting spring is arranged between the fixing plate and the fixing block.
5. The clean coal discharge hole device for the dry intelligent coal preparation system according to claim 4, wherein the fixing plate is made of metal, and an electromagnet is fixed on the bottom plate and arranged on one side of the fixing plate, which is opposite to the receiving frame.
6. The clean coal discharge port device for the dry intelligent coal preparation system according to claim 5, wherein the fixing block is provided with a guide groove, and the guide groove is provided with a guide inclined surface for guiding the limiting rod into the limiting hole.
7. The clean coal discharge port device for the dry intelligent coal preparation system according to claim 5, further comprising a connecting plate and inserting rods fixed at two ends of the connecting plate, wherein handles are fixed at the front side and the rear side of the material receiving frames, inserting holes are formed in the handles, and the two inserting rods can be respectively inserted into the inserting holes of the handles between the two material receiving frames.
8. The clean coal discharge hole device for the dry intelligent coal preparation system according to claim 5, wherein the dry intelligent coal preparation system comprises a modular separation module and an intelligent control system which are matched, and realizes a serial separation and combination design for raw coal; the modular sorting module further comprises a transporting module, a crushing module, a sorting module, a purifying module and an air supply module, wherein the transporting module, the crushing module, the sorting module, the purifying module and the air supply module all adopt closed operation.
9. The clean coal discharge port device for the dry intelligent coal preparation system according to claim 8, wherein the whole dry intelligent coal preparation system adopts a skid-mounted design, the transportation module, the crushing module, the separation module, the purification module and the air supply module which form the dry intelligent coal preparation system are independently transported to the site, and the transportation module, the crushing module, the separation module, the purification module and the air supply module are connected on the site to be put into operation.
10. The clean coal discharge port device for the dry intelligent coal preparation system according to claim 9, wherein the purification module adopts a full cloth bag dust removal system to realize air separation; the circulating air of a main fan of the purification module is air filtered and purified by a cloth bag, and an air quantity distribution regulation and control device is arranged in a negative pressure system of the induced draft fan and a working system of the main fan; and the main fan circulating air in the purification module keeps the fed materials loose, the induced draft fan keeps the negative pressure operation of the separation main machine, and the dusty airflow is completely filtered by the cloth bag.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114733752A (en) * | 2022-04-21 | 2022-07-12 | 广东韩研活性炭科技股份有限公司 | Particle grading equipment for activated carbon production |
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| US20020060130A1 (en) * | 1996-12-30 | 2002-05-23 | Eero Vaananen | Apparatus for processing lumpy material |
| CN207692240U (en) * | 2017-12-29 | 2018-08-03 | 天津新欣孚自动化技术有限公司 | A kind of industrial equipment link communication module facilitating installation |
| CN212824154U (en) * | 2020-07-21 | 2021-03-30 | 安庆银亿轴承有限公司 | Receiving device for bearing processing |
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Denomination of invention: A Clean Coal Discharge Port Device for Dry Intelligent Coal Preparation System Granted publication date: 20220902 Pledgee: China Merchants Bank Limited by Share Ltd. Tangshan branch Pledgor: Tangshan Shenzhou Machinery Group Co.,Ltd. Registration number: Y2024980001803 |
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