CN114162578B - Gangue discharge port buffer device for dry intelligent coal preparation system - Google Patents
Gangue discharge port buffer device for dry intelligent coal preparation system Download PDFInfo
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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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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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
- B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
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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
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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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
- B65G69/181—Preventing escape of dust by means of sealed systems
- B65G69/182—Preventing escape of dust by means of sealed systems with aspiration means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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Abstract
The invention discloses a gangue discharge port buffer device for a dry intelligent coal preparation system, which comprises a discharge pipe, wherein a plurality of downward-inclined buffer plates which are sequentially arranged from top to bottom are fixed on the inner wall of the discharge pipe, the buffer plates are sequentially and mutually staggered from top to bottom, buffer layers are arranged on the buffer plates, the buffer plates are fixedly connected with the discharge pipe through a connecting device, the connecting device comprises a connecting block, a connecting bolt and a connecting plate, the connecting plate is fixedly connected with the buffer plates, the angle between the connecting plate and the buffer plates is an acute angle, and slots are arranged on the connecting plate. According to the invention, the gangue falls onto the buffer layer of the uppermost buffer plate, and rolls onto the buffer layer of the lower buffer plate from the uppermost buffer plate, and rolls downwards in sequence, so that the noise generated when the gangue rolls off can be reduced; and the buffer device can reduce the speed that the waste rock falls onto the conveyer to reduce the impact to the conveyer when falling.
Description
Technical Field
The invention belongs to the technical field of dry coal separation, and particularly relates to a gangue discharge port buffer device for a dry intelligent coal separation system.
Background
Clean utilization of coal resources is more and more a key problem to be concerned by the coal industry in recent years, coal separation is mainly divided into washing coal separation and dry coal separation, and the washing coal separation mainly utilizes a large amount of water to float and separate effective coal and remove coal gangue; the dry coal dressing is to remove various harmful substances, such as gangue and sulfide, in coal by using wind power, and has positive significance for 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 coal washing and coal dressing are not feasible and waste water resources are serious in many cases, and a plurality of coal types which are like brown coal and can be slurried or argillized by water are available and cannot be carried out by the coal washing and coal dressing. Therefore, the dry coal dressing is rapidly developed in recent years, and is beneficial to resource saving and environmental protection.
No matter the coal dressing by dry method or the coal dressing by water washing, how to discharge or transport the separated gangue is a very serious industrialized problem, especially the gangue selected by the coal dressing device is discharged from the discharge port of the discharge pipe and falls on the conveyor below the discharge pipe, but the gangue collides with the inner wall of the discharge pipe in the falling process, the noise is large, the production environment is disastrous 'noise' pollution, and in addition, the noise often suppresses other sound prompts such as normal alarm and the like of industrial production, so that great production disorder is caused.
In addition, the gangue that is selected out drops the conveyer with very fast speed on, causes very big impact to the conveyer, and to the very big destruction of transport machine, for example promoted the transport machine and accepted the unevenness's of steel sheet destruction, perhaps promoted the tear destruction etc. of transportation belt. Therefore, the service life of the sorting equipment component is reduced, and the maintenance cost is increased.
Disclosure of Invention
According to the technical problems in the prior art, aiming at the defects in the prior art, the invention provides a gangue discharge port buffer device for a dry intelligent coal separation system, which is suitable for a separation device of the dry intelligent coal separation system.
In order to achieve the purpose, the invention provides the following technical scheme: a gangue discharge port buffer device for a dry intelligent coal separation system is suitable for a separation device of the dry intelligent coal separation system and comprises a discharge pipe, wherein a plurality of downward-inclined buffer plates which are sequentially arranged from top to bottom are fixed on the inner wall of the discharge pipe, the plurality of buffer plates are sequentially arranged in a staggered manner from top to bottom, and buffer layers are arranged on the buffer plates; the discharge pipe consists of a plurality of sections of connecting pipes, and a buffer plate is fixed in each connecting pipe; every the connecting pipe left surface is fixed with fixed block and upper left fixed block, every under the left side respectively the connecting pipe right flank is fixed with fixed block and upper right fixed block under the right side respectively, it has connecting screw all to articulate on fixed block and the upper right fixed block on the left side, be equipped with the draw-in groove that supplies connecting screw to peg graft on fixed block and the lower right fixed block under the left side, connecting screw is last all threaded connection has the nut.
Further, the buffer board passes through connecting device and discharge pipe fixed connection, connecting device includes connecting block, connecting bolt and connecting plate, connecting plate and buffer board fixed connection, the angle between connecting plate and the buffer board is the acute angle, be equipped with the slot on the connecting plate, be equipped with on the connecting block and connect the internal thread, connecting bolt passes the lateral wall of discharge pipe and is connected internal thread threaded connection, the connecting plate sets up between the inner wall of connecting block and discharge pipe, the slot is pegged graft with connecting bolt.
Further, the material of the buffer layer is rubber. Further, be equipped with the butt inclined plane on the connecting block, the butt inclined plane and the side butt of buffer board towards the connecting block.
Further, the buffer plate is fixed in the discharge pipe by a connection bolt and a connection block. 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.
More preferably, the purification module adopts a full cloth bag dust removal system to realize air cleaning and separation; the main fan circulating air 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.
More preferably, 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 sorting main machine, and the dust-containing air flow is filtered by the cloth bag.
Compared with the prior art, the gangue discharge port buffer device for the dry intelligent coal preparation system has the following beneficial effects:
1. the waste rock falls on the buffer layer of the buffer board of the top, and on the buffer layer of the buffer board of its below was fallen by the buffer board roll of the top, down rolled down in proper order, rolled on the conveyer, the noise when the buffer layer can reduce the waste rock and roll.
2. The buffer device arranged in the gangue discharge port buffer device for the dry intelligent coal preparation system can reduce the falling speed of gangue on the conveyor, thereby reducing the impact on the conveyor when falling.
3. A discharge pipe segmentation setting for among the waste rock discharge port buffer of dry process intelligence coal preparation system can make things convenient for the installation and the dismantlement of the buffer board in the middle of the discharge pipe.
Drawings
Fig. 1 is a schematic structural diagram of a dry coal preparation device in a dry intelligent coal preparation system to which the present invention is applied.
Fig. 2 is a schematic perspective view of a gangue discharge port buffer device for a dry intelligent coal preparation system according to the invention.
Fig. 3 is a sectional view of the gangue discharge port buffering device shown in fig. 2.
Fig. 4 is a schematic structural diagram of a dry intelligent coal preparation system applied in the invention.
Fig. 5 is a schematic structural diagram of the two-wing type intelligent rolling type damage system in fig. 4.
Fig. 6 is a schematic diagram of a double-wing structure of the double-wing intelligent rolling type damage system in fig. 5.
Fig. 7 is a schematic view of the roll conveyor mechanism of fig. 5.
Reference numerals: 1. a conveyor; 2. a discharge pipe; 3. a connecting bolt; 4. connecting a screw rod; 5. a lower right fixed block; 6. a nut; 7. a card slot; 8. a right upper fixed block; 9. a buffer layer; 10. a buffer plate; 11. connecting blocks; 12. a connecting plate; 13. a slot; 15. a left upper fixed block; 16. a left lower fixed block; 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 gangue discharge port buffer device for a dry-method intelligent coal preparation system, which is applied to a gangue discharge port in a dry-method coal preparation device of the dry-method intelligent coal preparation system.
Fig. 1 to 3 illustrate a concrete structure of the gangue discharge port buffer device used for the dry intelligent coal preparation system, and fig. 4 to 7 illustrate the dry intelligent coal preparation system to which the gangue discharge port buffer device of the present invention is specifically applied.
The gangue discharge port buffer device shown in fig. 1 is applied to a structural schematic diagram of a dry coal separation device in a dry intelligent coal separation system, and comprises a discharge pipe 2, and a conveyor 1 is arranged below the discharge pipe 2, namely the conveyor 1 is arranged below the discharge pipe 2, and is particularly arranged on a gangue discharge passage. Furthermore, a gangue discharge port buffer device for a dry intelligent coal preparation system is shown in FIG. 2.
As shown in fig. 2 and 3, a waste rock discharge port buffer device for dry intelligent coal separation system specifically comprises a discharge pipe 2, the inner wall of the discharge pipe 2 is fixed with a plurality of downward-inclined buffer plates 10 which are sequentially arranged from top to bottom, the buffer plates 10 are sequentially arranged in a staggered manner from top to bottom, a buffer layer 9 is arranged on each buffer plate 10, the buffer layer 9 is made of rubber, waste rock falls on the buffer layer 9 of the uppermost buffer plate 10, the uppermost buffer plate 10 rolls on the buffer layer 9 of the buffer plate 10 below the uppermost buffer plate, the buffer plates roll down in sequence and fall on a conveyor 1, the buffer layer 9 can reduce noise when the waste rock falls, in addition, the speed of the waste rock falling on the conveyor 1 can be reduced, and therefore impact on the conveyor 1 when the waste rock falls is reduced.
As shown in fig. 3, the buffer board 10 is fixedly connected with the discharge pipe 2 through a connecting device, the connecting device includes a connecting block 11, a connecting bolt 3 and a connecting plate 12, the connecting plate 12 is fixedly connected with the buffer board 10, an angle between the connecting plate 12 and the buffer board 10 is an acute angle, a slot 13 is arranged on the connecting plate 12, a connecting internal thread is arranged on the connecting block 11, the connecting bolt 3 penetrates through the side wall of the discharge pipe 2 and is connected with the internal thread, the connecting plate 12 is arranged between the inner walls of the connecting block 11 and the discharge pipe 2, the slot 13 is inserted into the connecting bolt 3, the buffer board 10 is fixed in the discharge pipe 2 through the connecting bolt 3 and the connecting block 11, when the buffer board 10 is dirty and needs to be cleaned, the connecting bolt 3 can be unscrewed, and the buffer board 10 can be detached.
The connecting block 11 is provided with an abutting inclined surface, and the abutting inclined surface abuts against the side surface of the buffer plate 10 facing the connecting block 11.
The discharge pipe 2 consists of a plurality of sections of connecting pipes, a buffer plate 10 is fixed in each connecting pipe, a left lower fixing block 16 and a left upper fixing block 15 are respectively fixed on the left side surface of each connecting pipe, a right lower fixing block 5 and a right upper fixing block 8 are respectively fixed on the right side surface of each connecting pipe, a connecting screw rod 4 is hinged on each of the left upper fixing block 15 and the right upper fixing block 8, clamping grooves 7 for the connecting screw rods 4 to be inserted are formed in the left lower fixing block 16 and the right lower fixing block 5, nuts 6 are respectively connected on the connecting screw rods 4 in a threaded manner, and the connecting screw rods 4 are fixed by the nuts 6 after rotating to the clamping grooves 7; the discharge pipe 2 is arranged in sections, so that the buffer plate 10 in the middle of the discharge pipe 2 can be conveniently mounted and dismounted.
Fig. 4 shows a dry intelligent coal preparation system, which is suitable for separation of full-grain-level raw coal of strip mine, and the dry intelligent coal preparation system 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 by the clean coal discharge port device for the dry intelligent coal preparation system, and the intestinal obstruction problem is solved.
The 'whole-size raw coal' sorting in the dry intelligent coal separation system shown in fig. 4 is substantially improved and greatly different from the 'whole-size-fraction' sorting previously used by the applicant. The "whole-size-fraction raw coal" separation 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 separation system comprises a modularized 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 IDSX ray lump coal dry separator, a large-throughput dry separator, a purification and dust removal system (a purification system or a purification circulating system) and a belt comprehensive protection system in a transport 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 IDSX 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 is used for separating coal by wind; 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. 4, 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 medium 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 adopts an IDSX ray intelligent lump coal separator, 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 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 an 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 gangue is discharged on the conveyor 1 through the discharge pipe 2, the conveyor 1 preferably adopts a gangue scraper conveyor 29, then the gangue is conveyed to a gangue bin to be transported through the gangue scraper conveyor 29, and the gangue is backfilled into 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 leakage pollutants, the purification and dust removal system removes dust through a bag-type dust remover 31, dust-containing gas from the skid-mounted dry separator 26 is blown into the bag-type dust remover 31 through a blower 30, and clean gas filtered by the bag-type dust remover 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. 5 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. 6, the feeding device of the double-wing structure includes wing plates 49 arranged in bilateral symmetry, hydraulic struts 54 supported under the wing plates 49, one end of each hydraulic strut 54 is connected to the middle upper portion of each wing plate 49, the other end of each hydraulic strut 54 is connected between a lower tank 52 and an 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. 7, 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. 6 can be obtained from the view of fig. 5 "a-a", and the structure shown in fig. 7 can be obtained from the view of fig. 5 "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. 5 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 (9)
1. A gangue discharge port buffer device for a dry intelligent coal separation system is characterized by being suitable for a sorting device of the dry intelligent coal separation system and comprising a discharge pipe, wherein a plurality of downward-inclined buffer plates which are sequentially arranged from top to bottom are fixed on the inner wall of the discharge pipe, the plurality of buffer plates are sequentially arranged in a mutually staggered manner from top to bottom, and buffer layers are arranged on the buffer plates;
the discharge pipe consists of a plurality of sections of connecting pipes, and a buffer plate is fixed in each connecting pipe; every the connecting pipe left surface is fixed with fixed block and upper left fixed block, every under the left side respectively the connecting pipe right flank is fixed with fixed block and upper right fixed block under the right side respectively, it has connecting screw all to articulate on fixed block and the upper right fixed block on the left side, be equipped with the draw-in groove that supplies connecting screw to peg graft on fixed block and the lower right fixed block under the left side, connecting screw is last all threaded connection has the nut.
2. The gangue discharge port buffering device for the dry intelligent coal preparation system according to claim 1, wherein the buffer plate is fixedly connected with the discharge pipe through a connecting device, the connecting device comprises a connecting block, a connecting bolt and a connecting plate, the connecting plate is fixedly connected with the buffer plate, an angle between the connecting plate and the buffer plate is an acute angle, a slot is formed in the connecting plate, a connecting internal thread is formed in the connecting block, the connecting bolt penetrates through the side wall of the discharge pipe and is in threaded connection with the connecting internal thread, the connecting plate is arranged between the connecting block and the inner wall of the discharge pipe, and the slot is inserted into the connecting bolt.
3. The gangue discharge port buffer device for the dry intelligent coal preparation system according to claim 2, wherein the material of the buffer layer is rubber.
4. The gangue discharge port buffer device for the dry intelligent coal preparation system according to claim 2, wherein an abutting inclined surface is arranged on the connecting block, and the abutting inclined surface abuts against the side surface of the buffer plate facing the connecting block.
5. The gangue discharge port buffer device for the dry intelligent coal preparation system according to claim 2, wherein the buffer plate is fixed in the discharge pipe through a connecting bolt and a connecting block.
6. The gangue discharge port buffer 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 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.
7. The gangue discharge port buffering device for the dry intelligent coal preparation system according to claim 6, wherein the whole dry intelligent coal preparation system adopts a skid-mounted design, a transportation module, a crushing module, a sorting module, a purification module and an 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 sorting module, the purification module and the air supply module are connected on the site to be put into operation.
8. The gangue discharge port buffer device for the dry intelligent coal preparation system according to claim 7, wherein the purification module adopts a full cloth bag dust removal system to realize air cleaning and separation; the main fan circulating air 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.
9. The gangue discharge port buffering device for the dry intelligent coal preparation system according to claim 8, wherein a main fan in the purification module circulates air to keep the fed materials loose, an induced draft fan keeps the negative pressure operation of the separation host machine, and the dust-containing air flow is filtered by a cloth bag.
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| CN202111447030.3A CN114162578B (en) | 2021-11-30 | 2021-11-30 | Gangue discharge port buffer device for dry intelligent coal preparation system |
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| GB429458A (en) * | 1933-11-30 | 1935-05-30 | Illingworth Carbonization Co | Apparatus for the carbonisation or heat treatment of solid materials |
| JP6617874B2 (en) * | 2015-12-03 | 2019-12-11 | 株式会社サタケ | Grain mobile tank and grain supply device for the mobile tank |
| CN108325727A (en) * | 2018-03-20 | 2018-07-27 | 新乡市振英机械设备有限公司 | A kind of feature of environmental protection building waste screening machine |
| CN209680308U (en) * | 2019-01-29 | 2019-11-26 | 江西鲲鹏机械制造有限公司 | A kind of coal mine coal cinder screening jigging machine |
| CN209601505U (en) * | 2019-03-12 | 2019-11-08 | 云南方圆矿产资源再生综合利用研究院有限公司 | A kind of mine rubber band conveyer material buffer structure |
| CN210115145U (en) * | 2019-04-26 | 2020-02-28 | 国电建投内蒙古能源有限公司 | Buffer device for feed inlet of sorting machine |
| CN110759035A (en) * | 2019-11-28 | 2020-02-07 | 百色市必晟矿业有限公司 | Ore conveying equipment |
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Denomination of invention: A gangue discharge outlet buffer device for dry intelligent coal preparation system Granted publication date: 20220729 Pledgee: China Merchants Bank Limited by Share Ltd. Tangshan branch Pledgor: Tangshan Shenzhou Machinery Group Co.,Ltd. Registration number: Y2024980001803 |