CN112169874B - Coal mill for thermal power generation - Google Patents

Coal mill for thermal power generation Download PDF

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Publication number
CN112169874B
CN112169874B CN202011181095.3A CN202011181095A CN112169874B CN 112169874 B CN112169874 B CN 112169874B CN 202011181095 A CN202011181095 A CN 202011181095A CN 112169874 B CN112169874 B CN 112169874B
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fixedly connected
belt pulley
pivot
coal
casing
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CN112169874A (en
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不公告发明人
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Taishan Power Construction Group Co ltd
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Taishan Power Construction Group Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00Crushing or disintegrating by reciprocating members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention relates to the technical field of coal mills for thermal power generation, in particular to a coal mill for thermal power generation, which comprises a shell, wherein supporting legs are fixedly connected to the periphery of the lower end of the shell, a feeding pipe is communicated with the shell, a discharging port is formed in the lower end of the shell, connecting blocks are fixedly connected to the inner walls of two sides of the upper end of the shell, first rotating shafts are rotatably connected to the two connecting blocks through thrust ball bearings, reciprocating threads are formed in the two first rotating shafts, a grinding seat is fixedly connected to the lower end of a second rotating shaft, a supporting plate fixedly connected with the shell is arranged below the grinding seat, a plurality of leakage holes are formed in the supporting plate, a gear is fixedly connected to the upper end of the second rotating shaft, a rack is connected to the connecting plate through a limiting mechanism and meshed with the gear, a hinge rod is hinged to one end of the rack and hinged with the connecting blocks, and a first belt pulley is fixedly connected to the upper ends of the two first rotating shafts. The invention has the characteristic of being beneficial to the grinding and crushing effect of the coal blocks.

Description

Coal mill for thermal power generation
Technical Field
The invention relates to the technical field of coal mills for thermal power generation, in particular to a coal mill for thermal power generation.
Background
During thermal power generation, chemical energy of fuel is converted into steam heat energy through combustion of coal, then the steam heat energy is converted into mechanical energy, and finally the mechanical energy is converted into electric energy.
When the coal burns, in order to make the coal carry out abundant burning, grind the coal cinder through grinding the coal pulverizer, grind the coal cinder, thereby increase and the area of contact of air guarantee the abundant of burning, current coal pulverizer is when grinding the coal cinder, mainly extrude the breakage to the coal cinder through the mode that adopts the crushing, after the extrusion, the coal granule can support pressure, the coal cinder that results in sneaking in among the coal granule is difficult by the extrusion breakage, influence the broken effect of coal cinder easily, still exist after leading to the extrusion and do not have broken complete coal cinder, still can lead to the burning insufficient, cause the wasting of resources.
Disclosure of Invention
The invention aims to solve the defects that coal blocks are crushed by extrusion and are not crushed completely in the prior art, and provides a coal mill for thermal power generation.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a coal pulverizer for thermal power, includes the casing, casing lower extreme fixedly connected with supporting leg all around, the intercommunication is provided with the inlet pipe on the casing, the discharge gate has been seted up to the casing lower extreme, equal fixedly connected with connecting block, two on the inner wall of casing upper end both sides all be connected with first pivot, two through thrust ball bearing rotation on the connecting block reciprocal screw thread has all been seted up in the first pivot, two equal screw thread through connection has the connecting plate on the reciprocal screw thread, the middle part position of connecting plate is rotated through thrust ball bearing and is connected with the second pivot, second pivot lower extreme fixedly connected with grinds the seat, grind seat below be provided with casing fixed connection's backup pad, a plurality of small openings have been seted up in the backup pad, second pivot upper end fixedly connected with gear, be connected with the rack through stop gear on the connecting plate, the rack with the gear meshes mutually, rack one end articulates there is articulated pole, articulated pole with the connecting block articulates, two first pulley of first pivot upper end fixedly connected with, two the cover is equipped with first belt between the first belt, one of them first pivot is connected with actuating mechanism.
Preferably, the limiting mechanism comprises a plurality of L-shaped connecting rods which are fixedly connected with the connecting plate at equal intervals, limiting sleeves are fixedly connected to the L-shaped connecting rods, and the rack is slidably arranged in the limiting sleeves.
Preferably, the equal fixedly connected with connecting rod in lower surface both ends of connecting plate, the connecting rod runs through backup pad fixedly connected with removes the frame, remove a plurality of conducting rods of fixedly connected with on the frame, the conducting rod is located under the small opening, and the diameter of conducting rod is less than the internal diameter of small opening.
Preferably, fixedly connected with bearing frame on the casing, the reciprocal threaded rod of axial surface fixedly connected with in the bearing frame, screw thread through connection has the movable plate on the reciprocal threaded rod, fixedly connected with horizontal pole on the movable plate, the horizontal pole is located grind the below of seat, the horizontal pole runs through the casing extends into fixedly connected with draws the flat board in the casing, fixedly connected with second bevel gear on the compound threaded rod, rotate through the bearing on the casing and be connected with the third pivot, the first conical gear of fixedly connected with in the third pivot, first conical gear with second conical gear meshes mutually, the third pivot with pass through the actuating mechanism drive.
Preferably, actuating mechanism include with the casing passes through the bearing and rotates the fourth pivot of connecting, fixedly connected with support frame on the casing, fixed mounting has the motor on the support frame, the output shaft of motor with fourth pivot fixed connection, it is connected with second belt pulley and fourth belt pulley, two to rotate respectively through one-way bearing in the fourth pivot one-way bearing can free rotation opposite direction, third pivot upper end fixedly connected with fifth belt pulley, the fifth belt pulley with the cover is equipped with the second belt between the fourth belt pulley, fixedly connected with third belt pulley in the first pivot, the third belt pulley with the cover is equipped with the third belt between the second belt pulley, fixed mounting has the switch on the casing, the switch pass through the wire with the motor is connected.
Preferably, a plurality of grinding teeth are fixedly connected to the lower surface of the grinding seat at equal intervals.
The coal mill for thermal power generation provided by the invention has the beneficial effects that: rotate through adopting first pivot, drive the connecting plate and remove, make and grind the seat and reciprocate, play the broken effect of extrusion to the coal cinder, when the connecting plate reciprocates simultaneously, will drive the hinge bar lower extreme and remove, make rack drive gear rotate, it rotates to drive and grind the seat, make and grind the seat and rotate when reciprocating, guaranteed the crushing effect to the coal cinder, the small opening can only pass through the coal granule that accords with the specification simultaneously, thereby guaranteed to grind the coal cinder thoroughly.
Drawings
Fig. 1 is a first perspective view of a coal mill for thermal power generation according to the present invention;
FIG. 2 is a second perspective view of a coal pulverizer for thermal power generation in accordance with the present invention;
FIG. 3 is a front view of a coal pulverizer for thermal power generation in accordance with the present invention;
FIG. 4 is a cross-sectional view of a coal pulverizer for thermal power generation according to the present invention;
FIG. 5 is a first perspective view of a coal pulverizer for thermal power generation according to the present invention shown in FIG. 4;
FIG. 6 is a second perspective view of the coal pulverizer for thermal power generation shown in FIG. 4 according to the present invention;
FIG. 7 is a schematic structural view of a gear portion of a coal mill for thermal power generation according to the present invention;
FIG. 8 is a front view of the coal pulverizer for thermal power generation of the present invention shown in FIG. 7;
FIG. 9 is an enlarged view of portion A of FIG. 6 of a coal pulverizer for thermal power generation in accordance with the present invention;
FIG. 10 is an enlarged view of a portion B of the coal pulverizer for thermal power generation according to the present invention;
fig. 11 is a schematic structural diagram of a coal mill moving frame part for thermal power generation according to the present invention.
In the figure: the device comprises a shell 1, a feeding pipe 2, a switch 3, a supporting leg 4, a supporting frame 5, a reciprocating threaded rod 6, a motor 7, a supporting plate 8, a connecting rod 9, a connecting plate 10, a first rotating shaft 11, a grinding seat 12, a first belt 13, a first belt pulley 14, a connecting block 15, a leak hole 16, a moving plate 17, a moving frame 18, a conducting rod 19, a reciprocating thread 20, a gear 21, a one-way bearing 22, a limiting sleeve 23, a second rotating shaft 24, a rack 25, a hinged rod 26, an L-shaped connecting rod 27, a grinding tooth 28, a discharge hole 29, a leveling plate 30, a cross rod 31, a bearing seat 32, a third rotating shaft 33, a second belt 34, a first conical gear 35, a fourth rotating shaft 36, a third belt 37, a second belt pulley 38, a third belt pulley 39, a fourth belt pulley 40, a fifth belt pulley 41 and a second conical gear 42.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-8, a coal pulverizer for thermal power, including casing 1, casing 1 lower extreme fixedly connected with supporting leg 4 all around, the intercommunication is provided with inlet pipe 2 on the casing 1, discharge gate 29 has been seted up to casing 1 lower extreme, equal fixedly connected with connecting block 15 on the inner wall of casing 1 upper end both sides, all be connected with first pivot 11 through thrust ball bearing rotation on two connecting blocks 15, reciprocating screw thread 20 has all been seted up on two first pivots 11, equal screw thread through connection has connecting plate 10 on two reciprocating screw thread 20, the middle part position of connecting plate 10 is connected with second pivot 24 through thrust ball bearing rotation, 24 lower extreme fixedly connected with in second pivot grinds seat 12, it is provided with the backup pad 8 with casing 1 fixed connection to grind seat 12 below, a plurality of small openings 16 have been seted up on backup pad 8, grind broken coal granule and spill from small opening 16, play the effect of screening when grinding through small opening 16, grind unqualified coal granule, will continue to stop in backup pad 8, can leak down until grinding qualified, thereby the thorough of grinding has been guaranteed.
The upper end of the second rotating shaft 24 is fixedly connected with a gear 21, the connecting plate 10 is connected with a rack 25 through a limiting mechanism, the rack 25 is meshed with the gear 21, one end of the rack 25 is hinged with a hinged rod 26, the hinged rod 26 is hinged with a connecting block 15, the upper ends of the two first rotating shafts 11 are fixedly connected with first belt pulleys 14, the first rotating shafts 11 are rotatably connected with the shell 1 through bearings, a first belt 13 is sleeved between the two first belt pulleys 14, one of the first rotating shafts 11 is connected with a driving mechanism, the lower surface of the grinding seat 12 is fixedly connected with a plurality of grinding teeth 28 at equal intervals, the first rotating shafts 11 are driven to rotate through the driving mechanism, the first belt 13 is sleeved between the two first belt pulleys 14, so that the two first rotating shafts 11 are ensured to rotate in the same direction during transmission, and the reciprocating threads 20 penetrate through the connecting plate 10, thereby, when the first rotating shaft 11 rotates, the connecting plate 10 is driven to move up and down, since the connecting plate 10 is connected with the second rotating shaft 24 through the thrust ball bearing, and the lower end of the second rotating shaft 24 is fixedly connected with the grinding seat 12, thereby driving the grinding seat 12 to move up and down, when moving down, the coal briquette is crushed, and simultaneously, when the connecting plate 10 moves up and down, since the connecting block 15 is fixedly connected with the shell 1, and the upper end of the hinge rod 26 is hinged with the connecting block 15, and the lower end is hinged with the rack 25, the inclination angle of the hinge rod 26 can be changed, so that the hinge rod 26 plays a role of pulling or pushing the rack 25, and since the rack 25 is meshed with the gear 21, the driving gear 21 rotates, since the gear 21 is fixedly connected with the second rotating shaft 24, the second rotating shaft 24 is driven to rotate, so that the grinding seat 12 rotates, the grinding seat 12 is ensured to move up and down when grinding, the coal briquette is extruded and ground, and the effect of crushing the coal briquette is facilitated.
The limiting mechanism comprises a plurality of L-shaped connecting rods 27 which are fixedly connected with the connecting plate 10 at equal distances, a limiting sleeve 23 is fixedly connected onto the L-shaped connecting rods 27, the rack 25 is slidably arranged in the limiting sleeve 23, and the limiting sleeve 23 is used for limiting the rack 25, so that the rack 25 is prevented from being deviated, and the rack 25 is always meshed with the gear 21.
When the coal grinding machine works, the coal is put into the coal feeding pipe 2, the coal enters the supporting plate 8, the first rotating shaft 11 is driven to rotate through the driving mechanism, the first belt 13 is sleeved between the two first belt pulleys 14, transmission is carried out, the two first rotating shafts 11 are enabled to rotate in the same direction, reciprocating threads 20 penetrate through the connecting plate 10, the first rotating shaft 11 is driven to rotate, the connecting plate 10 is driven to move up and down, the connecting plate 10 is connected with the second rotating shaft 24 through a thrust ball bearing, the lower end of the second rotating shaft 24 is fixedly connected with the grinding seat 12, the grinding seat 12 is driven to move up and down, when the grinding machine moves downwards, the crushing effect of the coal is achieved, meanwhile, the inclination angle of the hinged rod 26 is changed when the connecting plate 10 moves up and down, the hinged rod 26 plays a role in pulling or pushing the rack 25, the rack 25 is meshed with the gear 21, the driving gear 21 rotates, the gear 21 is fixedly connected onto the second rotating shaft 24, the grinding seat 12 rotates, the grinding seat 12 is ensured, the coal is ground, the coal is stopped in the crushed coal and discharged from the grinding hole after the crushed coal is broken, and the crushed coal is discharged completely, and the discharge hole is discharged from the grinding hole 29, and the discharge hole.
Example 2
In embodiment 1, since the grinding seat 12 plays a role of extrusion grinding, coal is likely to block the leakage hole 16, and coal particles cannot be discharged in time, referring to fig. 6, 7, 8, and 11, as another preferred embodiment of the present invention, on the basis of embodiment 1, both ends of the lower surface of the connecting plate 10 are fixedly connected with the connecting rods 9, the connecting rods 9 are fixedly connected with the moving frame 18 through the supporting plate 8, the moving frame 18 is fixedly connected with a plurality of conducting rods 19, the conducting rods 19 are located right below the leakage hole 16, and the diameter of the conducting rods 19 is smaller than the inner diameter of the leakage hole 16, since the connecting rods 9 and the connecting plate 10 are fixedly connected, when the connecting plate 10 moves upward, the connecting rods 9 are driven to move upward, so that the conducting rods 19 are inserted into the leakage hole 16, thereby playing a role of dredging the leakage hole 16 and preventing the leakage hole 16 from being blocked.
Example 3
In embodiment 1, when coal is fed from the feeding pipe 2, the coal is stacked near the feeding pipe 2, most of the coal is not at the lower end of the grinding seat 12, and the progress of coal grinding is affected, referring to fig. 1-6 and fig. 9-11, as another preferred embodiment of the present invention, on the basis of embodiment 1, a bearing seat 32 is fixedly connected to the housing 1, a reciprocating threaded rod 6 is fixedly connected to an inner axial surface of the bearing seat 32, a moving plate 17 is connected to the reciprocating threaded rod 6 through a thread, a cross rod 31 is fixedly connected to the moving plate 17, the cross rod 31 is located below the grinding seat 12, the cross rod 31 penetrates through the housing 1 and extends into the housing 1, a pulling plate 30 is fixedly connected to the repeating threaded rod 6, a second bevel gear 42 is fixedly connected to the housing 1, a third rotating shaft 33 is rotatably connected to the housing 1 through a bearing, a first bevel gear 35 is fixedly connected to the third rotating shaft 33, the first bevel gear 35 is engaged with the second bevel gear 42, the third rotating shaft 33 is driven by a driving mechanism, the third bevel gear 33 is connected to rotate the third bevel gear 33, so that the third bevel gear is driven to drive the second bevel gear 35 to rotate, the second bevel gear to drive the second bevel gear 35 to move the second bevel gear to perform the stacking of the coal on the coal paving plate 30, thereby preventing the coal from being stacked on the coal from being stacked coal paving plate 17, and the coal paving plate 6, thereby preventing the coal from being stacked coal.
The driving mechanism comprises a fourth rotating shaft 36 which is rotationally connected with the shell 1 through a bearing, a support frame 5 is fixedly connected on the shell 1, a motor 7 is fixedly installed on the support frame 5, an output shaft of the motor 7 is fixedly connected with the fourth rotating shaft 36, the fourth rotating shaft 36 is respectively and rotationally connected with a second belt pulley 38 and a fourth belt pulley 40 through one-way bearings 22, the two one-way bearings 22 can freely rotate in opposite directions, a fifth belt pulley 41 is fixedly connected to the upper end of a third rotating shaft 33, a second belt 34 is sleeved between the fifth belt pulley 41 and the fourth belt pulley 40, a third belt pulley 39 is fixedly connected to the first rotating shaft 11, a third belt 37 is sleeved between the third belt pulley 39 and the second belt pulley 38, a switch 3 is fixedly installed on the shell 1, the switch 3 is connected with the motor 7 through a lead, a forward rotation button and a reverse rotation button are arranged on the switch 3, and by pressing the forward rotation button, the driving motor 7 rotates forward to drive the fourth rotating shaft 36 to rotate forward, because the fourth rotating shaft 36 is rotatably connected with the second belt pulley 38 and the fourth belt pulley 40 through the one-way bearing 22, and the two one-way bearings 22 can rotate freely in opposite directions, when one of the one-way bearings 22 can rotate freely, the other one will be locked, the one-way bearing 22 connected on the second belt pulley 38 is in a locked state, the second belt pulley 38 will rotate, the one-way bearing 22 on the fourth belt pulley 40 is in a free rotation state, the fourth belt pulley 40 will not rotate, when the second belt pulley 38 rotates, the third belt 37 will be driven to rotate, the third belt pulley 39 will be driven to rotate, the first rotating shaft 11 will be driven to rotate, the coal briquette will be ground, when the reverse rotation button is pressed, the driving motor 7 rotates reversely to drive the fourth rotating shaft 36 to rotate reversely, the single-item bearing 22 connected to the second belt pulley 38 is in a free rotation state, and the single-item bearing 22 on the fourth belt pulley 40 is in a locked state, so that the fourth belt pulley 40 rotates, the fourth belt pulley 40 drives the fifth belt pulley 41 to rotate through the second belt 34, the fifth belt pulley 41 drives the third rotating shaft 33 to rotate, coal blocks are paved, and the coal blocks are prevented from being stacked.
When the grinding machine works, firstly, the leveling plate 30 is positioned right below the feeding pipe 2, then, coal blocks are put in from the feeding pipe 2, after the grinding machine finishes grinding, when a reverse rotation button is pressed, the driving motor 7 reversely rotates to drive the fourth rotating shaft 36 to reversely rotate, the single bearing 22 connected to the second belt pulley 38 is in a free rotation state, the single bearing 22 on the fourth belt pulley 40 is in a locking state, so that the fourth belt pulley 40 rotates, the fourth belt pulley 40 drives the fifth belt pulley 41 to rotate through the second belt 34, the fifth belt pulley 41 drives the third rotating shaft 33 to rotate, so that the third rotating shaft 33 drives the first conical gear 35 to rotate, as the first conical gear 35 is meshed with the second conical gear 42, the second conical gear 42 is fixedly connected to the double-threaded rod 6, the double-threaded rod 6 is driven to rotate, the moving plate 17 is driven to move, so that the leveling plate 30 moves, the leveling plate 30 plays a role of leveling the coal blocks stacked below the feeding pipe 2, the coal blocks are prevented from being stacked after the leveling button is pressed, the leveling plate 30 and the grinding cross bar 30 is moved back, and the grinding cross bar is returned to the grinding machine, after the grinding process is finished, the grinding cross bar is pressed, and the grinding cross bar is ground, and the grinding cross bar 30 is ground, and ground.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (4)

1. The utility model provides a coal pulverizer for thermal power generation, includes casing (1), casing (1) lower extreme fixedly connected with supporting leg (4) all around, its characterized in that, the intercommunication is provided with inlet pipe (2) on casing (1), discharge gate (29) have been seted up to casing (1) lower extreme, equal fixedly connected with connecting block (15), two on the inner wall of casing (1) upper end both sides all be connected with first pivot (11), two through thrust ball bearing rotation on connecting block (15), all seted up reciprocal screw thread (20) on first pivot (11), two equal screw thread through connection has connecting plate (10) on reciprocal screw thread (20), the middle part position of connecting plate (10) is rotated through thrust ball bearing and is connected with second pivot (24), second pivot (24) lower extreme fixedly connected with grinds articulated seat (12), grind seat (12) below be provided with casing (1) fixed connection's backup pad (8), seted up on backup pad (8) a plurality of weeping holes (16), second pivot (24) upper end fixedly connected with gear (21), be connected with rack (25) on connecting plate (10) through stop gear (25), rack bar (25) are articulated mutually, the hinge rod (26) is hinged with the connecting block (15), the upper ends of the two first rotating shafts (11) are fixedly connected with first belt pulleys (14), a first belt (13) is sleeved between the two first belt pulleys (14), and one of the first rotating shafts (11) is connected with a driving mechanism;
the grinding machine is characterized in that a bearing seat (32) is fixedly connected to the shell (1), a reciprocating threaded rod (6) is fixedly connected to the inner shaft surface of the bearing seat (32), a moving plate (17) is connected to the reciprocating threaded rod (6) in a threaded penetrating manner, a cross rod (31) is fixedly connected to the moving plate (17), the cross rod (31) is located below the grinding seat (12), the cross rod (31) penetrates through the shell (1) and extends into the shell (1) to be fixedly connected with a pulling plate (30), a second bevel gear (42) is fixedly connected to the reciprocating threaded rod (6), a third rotating shaft (33) is rotatably connected to the shell (1) through a bearing, a first bevel gear (35) is fixedly connected to the third rotating shaft (33), the first bevel gear (35) is meshed with the second bevel gear (42), and the third rotating shaft (33) is driven by the driving mechanism;
actuating mechanism include with casing (1) rotates fourth pivot (36) of connecting through the bearing, fixedly connected with support frame (5) are gone up in casing (1), fixed mounting has motor (7) on support frame (5), the output shaft of motor (7) with fourth pivot (36) fixed connection, rotate respectively through one-way bearing (22) in fourth pivot (36) and be connected with second belt pulley (38) and fourth belt pulley (40), two but one-way bearing (22) free rotation opposite direction, third pivot (33) upper end fixedly connected with fifth belt pulley (41), fifth belt pulley (41) with the cover is equipped with second belt (34) between fourth belt pulley (40), fixedly connected with third belt pulley (39) is gone up in first pivot (11), third belt pulley (39) with the cover is equipped with third belt (37) between second belt pulley (38), fixed mounting has switch (3) on casing (1), switch (3) through the wire with motor (7) are connected.
2. The coal mill for thermal power generation as claimed in claim 1, wherein the limiting mechanism comprises a plurality of L-shaped connecting rods (27) fixedly connected with the connecting plate (10) at equal intervals, a limiting sleeve (23) is fixedly connected to the L-shaped connecting rods (27), and the rack (25) is slidably arranged in the limiting sleeve (23).
3. The coal mill for thermal power generation according to claim 1, wherein both ends of the lower surface of the connecting plate (10) are fixedly connected with connecting rods (9), the connecting rods (9) penetrate through the supporting plate (8) and are fixedly connected with a moving frame (18), a plurality of conducting rods (19) are fixedly connected to the moving frame (18), the conducting rods (19) are located right below the leakage holes (16), and the diameter of the conducting rods (19) is smaller than the inner diameter of the leakage holes (16).
4. The coal pulverizer for thermal power generation according to claim 1, wherein a plurality of grinding teeth (28) are fixedly connected to the lower surface of the grinding seat (12) at equal intervals.
CN202011181095.3A 2020-10-29 2020-10-29 Coal mill for thermal power generation Active CN112169874B (en)

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CN208004041U (en) * 2017-12-21 2018-10-26 嘉兴伯恩利精密机械有限公司 A kind of up-down vibration formula cerium system polishing powder from rare earth grinds screening plant
CN108855381A (en) * 2018-06-25 2018-11-23 临泉县生产力促进中心 A kind of grinding device for flour processing
CN209866173U (en) * 2019-02-12 2019-12-31 江苏博润投资有限公司 Reducing mechanism is used in processing of treatment vitiligo traditional chinese medicine
CN210332837U (en) * 2019-06-10 2020-04-17 山东永豪建材集团有限公司 Calcium carbonate miropowder apparatus for producing
CN110370143A (en) * 2019-07-17 2019-10-25 叶伟 A kind of dedusting shape steel plate high-efficient rust-removing device
CN111013733A (en) * 2019-12-27 2020-04-17 安徽省快乐农牧科技股份有限公司 Multistage milling equipment of solid animal remedy for animal farm
CN111760645A (en) * 2020-07-14 2020-10-13 姚啸云 Coating grinding device

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