CN219631479U - Automatic discharging device of coal mill of coal-fired power plant - Google Patents
Automatic discharging device of coal mill of coal-fired power plant Download PDFInfo
- Publication number
- CN219631479U CN219631479U CN202223136956.3U CN202223136956U CN219631479U CN 219631479 U CN219631479 U CN 219631479U CN 202223136956 U CN202223136956 U CN 202223136956U CN 219631479 U CN219631479 U CN 219631479U
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- China
- Prior art keywords
- coal
- base
- gear
- cylinder
- barrel
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- 239000003245 coal Substances 0.000 title claims abstract description 69
- 238000007599 discharging Methods 0.000 title description 6
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims 1
- 239000003818 cinder Substances 0.000 description 15
- 239000003082 abrasive agent Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses an automatic blanking device of a coal mill of a coal-fired power plant, which comprises a base, wherein rotating brackets are symmetrically arranged on two sides of the top of the base, a connecting bracket is arranged in the middle of the top end of the base, a communicating groove penetrates through the middle of the connecting bracket, the two sides, close to the communicating groove, of the connecting bracket are communicated with each other, a bearing is arranged in the connecting groove, a cylinder body is connected in the rotating bracket through the bearing, and one end, far away from the rotating bracket, of the cylinder body is positioned in the connecting groove. According to the coal pulverizer, the barrel body is divided into two parts, the barrel bodies are supported and connected through the connecting support, the second gear is driven to rotate through the output shaft of the speed reducing motor, the second gear drives the first gear to rotate, the barrel bodies on two sides are driven to rotate in the same direction, coal blocks are crushed, and the barrel body of the coal pulverizer can normally drive the barrel body to rotate when the rotating speeds of the speed reducing motors on two sides are different or are started out of synchronization, so that the coal pulverizer can work normally.
Description
Technical Field
The utility model relates to the technical field of coal mills, in particular to an automatic blanking device of a coal mill of a coal-fired power plant.
Background
The coal mill used in coal-fired power plant is steel ball coal mill, which is the main equipment of pulverizing system, it relies on steel ball impact, extrusion and grinding in the barrel, grind large-granule coal block into coal powder, the coal powder in the barrel is dried by hot primary air and is carried out to coarse powder separator, the coal powder with qualified fineness is separated and sent to hearth for burning, coarse coal powder returns to the coal mill for secondary grinding.
Current coal mills in power plants, for example, publication No.: the novel double-inlet double-outlet coal mill provided by CN216094035U can automatically lubricate a gear transmission structure when a machine is used by arranging a lubricating device, so that the condition that the machine needs to be stopped and time waste occurs in the traditional manual operation is avoided.
Currently, most coal mills used in coal-fired power plants are large in size, a cylinder is long, motors at two ends of the cylinder drive the cylinder to rotate at the same time, and the output of the motors is changed through a controller to maintain synchronous rotation of the two motors. However, during the operation process, the fault of the coal mill causes the starting of the speed reduction motors at the two sides to be asynchronous or the rotation speeds to be inconsistent, and finally the motor is damaged. In order to eliminate the slight asynchronous rotation speed of the double motors, the prior art adopts a method for increasing the meshing clearance of the gears, and can reduce the damage to the motors by setting a certain clearance, but can accelerate the abrasion of the gears, thereby greatly reducing the service life of the gears and increasing the overall failure rate of the equipment.
Disclosure of Invention
The utility model aims to provide an automatic blanking device of a coal mill of a coal-fired power plant so as to solve the defects in the technology.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides an automatic unloader of coal fired power plant coal pulverizer, includes the base, and the top bilateral symmetry of base is installed and is rotated the support, and the top mid-mounting of base has the linking bridge, the linking bridge middle part runs through and has the spread groove, the linking bridge is close to spread groove both sides intercommunication and has the spread groove, install the bearing in the spread groove, be connected with the barrel through the bearing in the rotation support, rotation support one end is kept away from to the barrel is located inside the spread groove.
Preferably, the outside that the barrel is close to the tip is fixed with first gear, gear motor is installed at the top that the base corresponds first gear, gear motor corresponds the end of the output shaft of first gear and installs the second gear, the base supports equipment through supporting mechanism.
Preferably, the supporting mechanism comprises supporting legs, the supporting legs are symmetrically arranged at four corners of the bottom of the base, a lifting frame is arranged right above the base, the lifting frame is arranged between the base and the cylinder body, guide rod grooves are formed in the positions, corresponding to the four corners of the lifting frame, of the base in a penetrating mode, guide rods are fixed at the bottoms, corresponding to the guide rod grooves, of the lifting frame, universal wheels are arranged at the bottoms of the guide rods, an adjusting screw is connected with the middle threads of the lifting frame, and the bottom end of the adjusting screw is connected with the base in a rotating mode.
Preferably, the barrel is close to the inner wall symmetry of intercommunication groove and installs the kickoff, barrel internal diameter equals with the intercommunication groove internal diameter, the barrel passes through the bearing and rotates with the linking bridge and be connected.
Preferably, the tip of barrel all rotates and is connected with the inlet pipe, inlet feed hopper is connected with at inlet feed pipe one side top, the inlet feed pipe is kept away from the one end intercommunication of barrel and is had the air-supply line, the material discharging pipe is installed at the top of linking bridge, material discharging pipe and intercommunication groove intercommunication, the bilateral symmetry intercommunication that material discharging pipe is close to the top has the connecting pipe.
Preferably, the guide rod is a cylinder, and the outer diameter of the guide rod is matched with the inner diameter of the guide rod groove.
In the technical scheme, the utility model has the technical effects and advantages that:
the barrel through the coal pulverizer is divided into two parts, and support and connect through linking bridge between the barrel, and drive the second gear through gear motor's output shaft rotatory, the second gear drives first gear rotation, and then drive both sides barrel syntropy and rotate, smash the coal cinder, through the barrel of this coal pulverizer, can make it normally drive the barrel and rotate when both sides gear motor rotational speed is different or start asynchronism, make the coal pulverizer can normally work, can effectually avoid gear motor damage, the first gear and the second gear tight engagement of barrel two parts, can effectually reduce the wearing and tearing to the gear.
Through the coal pulverizer barrel rotation, the coal pulverizer staving drives inside abrasive material and coal cinder and rolls, smashes the coal cinder through the abrasive material, and the barrel can be with dialling flitch drive intercommunication inslot abrasive material and coal cinder and roll to smash the coal cinder in the intercommunication groove.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged view of the structure of the portion A of the present utility model 1;
fig. 3 is an enlarged view of the B part of the present utility model 1.
Reference numerals illustrate:
1, a base; 2, rotating the bracket; 3, connecting a bracket; 4, a communicating groove; 5, connecting grooves; 6, a bearing; 7, a cylinder; 701, a kick-out plate; 8 a first gear; 9, reducing the speed of the motor; 10 a second gear; 11 feeding pipes; a 12 feed hopper; 13 an air inlet pipe; 14 discharging pipes; 15 connecting pipes; 16 support legs; 17 lifting frames; 18 guide bar grooves; 19. a guide rod; 20 universal wheels; 21 an adjusting screw.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
Example 1
Referring to the accompanying drawings 1-3 of the specification, the automatic blanking device of the coal mill of the coal-fired power plant comprises a base 1, wherein rotating brackets 2 are symmetrically arranged on two sides of the top of the base 1, a connecting bracket 3 is arranged in the middle of the top of the base 1, a communicating groove 4 is penetrated in the middle of the connecting bracket 3, connecting grooves 5 are communicated on two sides of the connecting bracket 3, bearings 6 are arranged in the connecting grooves 5, a barrel 7 is rotationally connected to the rotating brackets 2, and one end, far away from the rotating brackets 2, of the barrel 7 is positioned in the connecting grooves 5; the outer side of the cylinder 7, which is close to the end part, is fixed with a first gear 8, a speed reducing motor 9 is arranged at the top of the base 1 corresponding to the first gear 8, a second gear 10 is arranged at the output shaft end of the speed reducing motor 9 corresponding to the first gear 8, and the base 1 supports equipment through a supporting mechanism;
and drive both sides barrel 7 syntropy rotation through the gear drive structure of symmetry installation, smash the coal cinder, through the barrel 7 of this coal pulverizer, can make it normally drive barrel 7 and rotate when both sides gear motor 9 rotational speed is different or start asynchronism, make the coal pulverizer can normally work, can effectually avoid gear motor 9 to damage, make first gear 8 and second gear 10 closely meshed simultaneously, can effectually reduce the wearing and tearing to the gear.
Example two
Based on embodiment one, the barrel 7 is close to the inner wall symmetry of intercommunication groove 4 and installs the deflector 701, barrel 7 internal diameter equals with intercommunication groove 4 internal diameter, barrel 7 rotates through bearing 6 and linking bridge 3 and is connected, when barrel 7 rotates, drive inside abrasive material and coal cinder, it smashes the coal cinder through the abrasive material, simultaneously barrel 7 can drive in the intercommunication groove 4 abrasive material and coal cinder simultaneously deflector 701 and roll, so as to smash the coal cinder in the intercommunication groove 4, the tip of barrel 7 is all rotated and is connected with inlet pipe 11, inlet pipe 11 one side top intercommunication has feeder hopper 12, inlet pipe 11 keeps away from the one end intercommunication of barrel 7 and has air-supply line 13, discharge pipe 14 is installed at the top of linking bridge 3, discharge pipe 14 is linked together with intercommunication groove 4, discharge pipe 14 is close to the bilateral symmetry intercommunication on top has connecting pipe 15, add the coal cinder to barrel 7 in through two inlet pipes 11 simultaneously, make the coal cinder after smashing through air-supply line 13, drive the buggy through hot-blast and discharge through discharge pipe 14, and pass through two-way discharge pipe 15 and get into the separator through the connecting pipe 15 screening.
Example III
On the basis of the first embodiment, supporting mechanism includes landing leg 16, landing leg 16 is installed to the bottom four corners symmetry of base 1, be provided with crane 17 directly over base 1, crane 17 is located between base 1 and barrel 7, the position of the four corners of base 1 correspondence crane 17 is run through and is had guide bar groove 18, the bottom of crane 17 correspondence guide bar groove 18 is fixed with guide bar 19, universal wheel 20 is installed to the bottom of guide bar 19, the middle part threaded connection of crane 17 has adjusting screw 21, adjusting screw 21 bottom and base 1 rotate to be connected, guide bar 19 is the cylinder, and the external diameter of guide bar 19 is identical with the internal diameter of guide bar groove 18, the coal pulverizer is in the during operation, through the landing leg 16 to carry out stable support, when the position that needs to remove the coal pulverizer, through rotating adjusting screw 21, make adjusting screw 21 drive crane 17 move down, crane 17 drive guide bar 19 and universal wheel 20 move down, make universal wheel 20 replace landing leg 16 to support the coal pulverizer, afterwards move the coal pulverizer through universal wheel 20, the coal pulverizer moves to the assigned position, reverse rotation adjusting screw 21, make the removal through the universal support leg 20 again and support the coal pulverizer through the supporting mechanism, the coal pulverizer can carry out stable support simultaneously to the coal pulverizer through the supporting mechanism.
The working principle of the utility model is as follows:
referring to the description attached to figures 1-3, this automatic unloading type coal pulverizer is used in thermal power factory, through dividing into two sections with the barrel 7 of coal pulverizer, and support and connect through linking bridge 3 between the barrel 7, and drive both sides barrel 7 syntropy rotation through the gear drive structure of symmetry installation, smash the coal cinder, barrel 7 through this coal pulverizer, can make it normally drive barrel 7 and rotate when the speed of rotation is different or start out of step in both sides gear motor 9, make the coal pulverizer can normally work, can effectually avoid gear motor 9 to damage, make first gear 8 and second gear 10 tight engagement simultaneously, can effectually reduce the wearing and tearing to the gear, and add the coal cinder simultaneously to barrel 7 through two inlet pipes 11, simultaneously, it is hot-blast to be discharged to barrel 7 through inlet tube 13, make the coal cinder pass through the hot-blast material pipe 14 after smashing, and pass through 15 two-way ejection of compact, make the interior buggy of coal separator of 15 go on, and the coal pulverizer is in the during operation, make it carry out steady support through landing leg 16, need move the coal pulverizer, make the universal screw rod 21 move the universal screw rod 21 and make the universal screw rod 20 move to the support roller through the support, the universal screw rod 20 moves down, the universal screw rod 20 is moved to the support 20 to the universal support roller is carried out to the coal pulverizer, the universal screw rod 20 is moved to the universal support 20 to the coal pulverizer, the universal screw 20 moves the support.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (4)
1. The utility model provides a coal fired power plant coal pulverizer automatic unloader, includes base (1), its characterized in that: the rotary support (2) is symmetrically arranged on the two sides of the top of the base (1), the connecting support (3) is arranged in the middle of the top of the base (1), the connecting groove (4) is penetrated in the middle of the connecting support (3), the connecting grooves (5) are communicated with the two sides of the connecting support (3) close to the connecting groove (4), the bearing (6) is arranged in the connecting groove (5), the cylinder (7) is connected with the cylinder (7) through the bearing (6), one end of the cylinder (7) far away from the rotary support (2) is positioned in the connecting groove (5), the stirring plate (701) is symmetrically arranged on the inner wall of the cylinder (7) close to the connecting groove (4), the inner diameter of the cylinder (7) is equal to the inner diameter of the connecting groove (4), the cylinder (7) is rotationally connected with the connecting support (3) through the bearing (6), the end part of the cylinder (7) is rotationally connected with the feed pipe (11), one side of the feed pipe (11) is communicated with the feed hopper (12), one end of the feed pipe (11) far away from the cylinder (7) is communicated with the feed pipe (13), the connecting support (3) close to the inner wall of the connecting support (4) is provided with the feed pipe (14), and connecting pipes (15) are symmetrically communicated with two sides of the discharge pipe (14) close to the top end.
2. The automatic coal mill feeding device for a coal-fired power plant according to claim 1, wherein: the outside that barrel (7) is close to the tip is fixed with first gear (8), gear motor (9) are installed at the top that base (1) corresponds first gear (8), second gear (10) are installed to the end that gear motor (9) correspond the output shaft of first gear (8), base (1) supports equipment through supporting mechanism.
3. The automatic coal mill feeding device for a coal-fired power plant according to claim 2, wherein: supporting mechanism includes landing leg (16), landing leg (16) are installed to the bottom four corners symmetry of base (1), be provided with crane (17) directly over base (1), crane (17) between base (1) and barrel (7), the position that base (1) corresponds crane (17) four corners is run through and is had guide arm groove (18), the bottom that crane (17) corresponds guide arm groove (18) is fixed with guide bar (19), universal wheel (20) are installed to the bottom of guide bar (19), the middle part threaded connection of crane (17) has adjusting screw (21), adjusting screw (21) bottom and base (1) rotate and are connected.
4. The automatic coal mill feeding device for a coal-fired power plant according to claim 3, wherein: the guide rod (19) is a cylinder, and the outer diameter of the guide rod (19) is matched with the inner diameter of the guide rod groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223136956.3U CN219631479U (en) | 2022-11-24 | 2022-11-24 | Automatic discharging device of coal mill of coal-fired power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223136956.3U CN219631479U (en) | 2022-11-24 | 2022-11-24 | Automatic discharging device of coal mill of coal-fired power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219631479U true CN219631479U (en) | 2023-09-05 |
Family
ID=87810545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223136956.3U Active CN219631479U (en) | 2022-11-24 | 2022-11-24 | Automatic discharging device of coal mill of coal-fired power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219631479U (en) |
-
2022
- 2022-11-24 CN CN202223136956.3U patent/CN219631479U/en active Active
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| GR01 | Patent grant | ||
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