CN110947469A - Automatic blanking type coal grinding device for thermal power plant - Google Patents
Automatic blanking type coal grinding device for thermal power plant Download PDFInfo
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- CN110947469A CN110947469A CN201911216542.1A CN201911216542A CN110947469A CN 110947469 A CN110947469 A CN 110947469A CN 201911216542 A CN201911216542 A CN 201911216542A CN 110947469 A CN110947469 A CN 110947469A
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- fixedly connected
- bearing plate
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- box body
- thermal power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/007—Mills with rollers pressed against a rotary horizontal disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/30—Passing gas through crushing or disintegrating zone the applied gas acting to effect material separation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/32—Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of coal mills, and discloses an automatic blanking type coal grinding device for a thermal power plant. This based on thermal power factory is with automatic unloading type coal grinding device, through setting up the bearing plate, the push pedal, first branch material mouth, the second divides the material mouth, first case that gathers materials, the second case that gathers materials, first outer tube, second outer tube etc. after the coal cinder of being thrown away the mill under centrifugal force is on falling the bearing plate, the push pedal rotates under the drive of transmission shaft and promotes the coal cinder on the way, when the through groove that sets up through bearing plate inside, fall to first case that gathers materials, in the second case that gathers materials, by first screw rod, the second screw rod conveys to first transmission and second transmission, and finally get back to the main tank body by the pan feeding mouth in, it can take out completely and cause certain wasting of resources to have solved the inside coal cinder of existing equipment, the problem of thermal power factory operation cost has been increased.
Description
Technical Field
The invention relates to the technical field of coal mills, in particular to an automatic blanking type coal grinding device for a thermal power plant.
Background
The coal-fired boiler of thermal power factory all is connected with the coal pulverizer usually, and the coal pulverizer smashes the fire coal of external input, and the burning electricity generation in sending into coal-fired boiler again, because the coal pulverizer can smash the fire coal, becomes powdered fire coal and has enlarged the area of contact with the air to can burn fast and improve combustion efficiency.
At present, the coal pulverizer that thermal power factory majority used is the medium speed coal pulverizer, receive the extrusion between the inside breaker's of coal cinder coal pulverizer the surface, grind and be smashed, the rethread wind-force blows out powdered buggy coal pulverizer, because some coal cinder can not be complete ground into the buggy, under the centrifugal force effect of mill, great every piece is thrown away the mill, fall to the bottom of coal pulverizer, although current equipment has seted up the through-hole in the bottom of coal pulverizer and has been used for taking out the not complete coal cinder of crocus, but because the drop point of coal cinder is unset, just cause some coal cinder to drop to leaving a mouthful farther place, even also can not take out these coal cinder completely through the instrument, cause certain wasting of resources, thermal power factory's operation cost has been increased.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an automatic blanking type coal grinding device for a thermal power plant, which has the advantages that coal blocks falling at the bottom of a coal grinding machine at random can be completely collected, the coal blocks are sent into the coal grinding machine again for grinding treatment, and the like, and solves the problems that the coal blocks which are not completely ground are taken out due to the fact that through holes are formed in the bottom of the coal grinding machine, certain coal blocks fall to a place far away from an opening due to the fact that the falling point of the coal blocks is not fixed, certain resources are wasted due to the fact that the coal blocks cannot be taken out completely even though a tool is used, and the operation cost of a thermal power plant is increased.
(II) technical scheme
In order to completely collect the coal blocks falling at the bottom of the coal mill randomly and send the coal blocks into the coal mill again for grinding treatment, the invention provides the following technical scheme: an automatic blanking type coal grinding device for a thermal power plant comprises a main box body, a transmission case and a main motor, wherein the bottom of the main box body is fixedly connected with the top end of the transmission case, the bottom inner wall of the transmission case is fixedly connected with the bottom end of the main motor, the output end of the main motor is fixedly connected with a transmission shaft, the surface of the transmission shaft is movably connected with a through hole at the bottom of the main box body, one end of the transmission shaft, which is far away from the main motor, is fixedly connected with a fixed roller, the top of the fixed roller is fixedly connected with a grinding disc, the side surface of the transmission shaft is fixedly connected with a push plate, the side inner wall of the main box body is fixedly connected with a bearing plate, the bottom of the bearing plate is fixedly connected with a first distributing port, the first distributing port corresponds to the position of a through groove in the bearing plate, the bottom end of the first distributing, and the lateral outer wall of the first material collecting box is fixedly connected with the bottom wall of the main box body, and the bottom of the transmission box is fixedly connected with the top of the base.
The bottom of the bearing plate is fixedly connected with a second material dividing port, the second material dividing port corresponds to the position of the through groove in the bearing plate, the bottom end of the second material dividing port is communicated with a second material collecting box, the bottom of the second material collecting box is fixedly connected with the top of the base, the outer side wall of the second material collecting box is fixedly connected with the bottom wall of the main box body, the right side of the first material collecting box is communicated with a first material discharging pipe, one end, away from the first material collecting box, of the first material discharging pipe is communicated with a first outer pipe, the bottom end of the first outer pipe is fixedly connected with the top of the base, the inner bottom wall of the first outer pipe is movably connected with a first screw rod, one end, away from the inner bottom wall of the first outer pipe, of the first screw rod is fixedly connected with a first transmission motor, the bottom of the first transmission motor is fixedly connected with the top end of the first outer pipe, the front, the right side of the main box body is fixedly connected with a first extension plate, the top end of the first extension plate is fixedly connected with a first transmission device, the first transmission device is positioned under a first extension discharge pipe, the top of the first extension plate is fixedly connected with a first leak-proof plate, the left side of the second material collecting box is communicated with a second discharge pipe, one end, away from the second material collecting box, of the second discharge pipe is communicated with a second outer pipe, the bottom end of the second outer pipe is fixedly connected with the top of the base, the bottom inner wall of the second outer pipe is movably connected with a second screw rod, one end, away from the bottom inner wall of the second outer pipe, of the second screw rod is fixedly connected with a second transmission motor, the bottom of the second transmission motor is fixedly connected with the top end of the second outer pipe, the front side of the second outer pipe is communicated with a second extension discharge pipe, and the left side of the main box body is fixedly connected with a second, the top end of the second extension plate is fixedly connected with a second transmission device, the second transmission device is positioned under a second extension discharge pipe, the top of the second extension plate is fixedly connected with a second leakage-proof plate, the top of the main box body is communicated with a feed inlet, the side surface of the feed inlet is fixedly connected with a rotary crusher, a first pulverized coal discharge pipe is fixedly connected with a through hole on the right side of the main box body, a second pulverized coal discharge pipe is fixedly connected with a through hole on the left side of the main box body, the bottom inner wall of the main box body is fixedly connected with a first hot air blower, an air outlet of the first hot air blower is fixedly connected with the bottom of the bearing plate, the joint of the air outlet of the first hot air blower and the bottom of the bearing plate is positioned under an air outlet in the bearing plate, the bottom inner wall of the main box body is fixedly connected with a second hot air blower, and the air outlet of the second hot air, and the joint of the air outlet of the second air heater and the bottom of the bearing plate is positioned right below the air outlet in the bearing plate.
Preferably, the bottom of the main box body is provided with a through hole, and the left side and the right side of the main box body are provided with through holes.
Preferably, the number of the push plates is two, and the two push plates are symmetrically distributed around the axis of the transmission shaft.
Preferably, a through hole is formed in the center of the bearing plate, the size of the through hole is matched with that of the transmission shaft, two through grooves which are symmetrical about the center are formed in the bearing plate, a plurality of air outlets are formed in the bearing plate, and the air outlets are symmetrically distributed about the center of the bearing plate in equal number.
Preferably, the number of the first anti-leakage plates is two, and the first transmission device is located between the two first anti-leakage plates.
Preferably, the number of the second anti-leakage plates is two, and the second transmission device is located between the two second anti-leakage plates.
Preferably, the number of the rotary crushers is four, and the four rotary crushers are uniformly distributed on the side surface of the feeding port.
Preferably, the joint of the first coal powder discharging pipe and the main box body is sealed, and the joint of the second coal powder discharging pipe and the main box body is sealed.
Compared with the prior art, the invention provides an automatic blanking type coal grinding device based on a thermal power plant, which has the following beneficial effects:
1. the automatic blanking type coal grinding device for the thermal power plant is characterized in that a bearing plate, a push plate, a first material distributing port, a second material distributing port, a first material collecting box, a second material collecting box, a first outer pipe, a second outer pipe, a first screw, a second screw and the like are arranged, so that the push plate rotates under the driving of the transmission shaft and pushes the coal blocks along the way after the coal blocks thrown out of the grinding disc under the centrifugal force fall on the bearing plate, when the coal blocks pass through the through groove arranged in the bearing plate, the coal blocks respectively fall to the first material collecting box and the second material collecting box through the first material dividing port and the second material dividing port, the coal blocks are conveyed to the first transmission device and the second transmission device through the first screw rod and the second screw rod, and finally, the coal blocks return to the main box body through the feeding port, so that the problems that certain resources are wasted and the operating cost of a thermal power plant is increased due to the fact that the coal blocks in the existing equipment can be completely taken out are solved.
2. This based on thermal power plant is with automatic unloading type coal grinding device through seting up the air outlet in the inside of bearing plate, has improved wind-force indirectly for the buggy can be blown to first buggy discharging pipe and second buggy discharging pipe by the wind that the air outlet blew out, and the buggy can be collected.
3. This based on thermal power plant is with automatic unloading type coal grinding device through setting up first air heater, second air heater for wind-force is enough to convey out the main tank body with the buggy, and the hot-blast can be when conveying the buggy that the air heater blew off, weathers the inside moisture of buggy, the burning of the buggy of being convenient for.
Drawings
FIG. 1 is a cross-sectional view of a front view of the present invention;
FIG. 2 is a three-dimensional view of the bearing plate structure of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1.
Wherein: 1. a main box body; 2. a transmission case; 3. a main motor; 4. a drive shaft; 5. a fixed roller; 6. a grinding disc; 7. pushing the plate; 8. a bearing plate; 9. a first material dividing port; 10. a first material collecting box; 11. a second material dividing port; 12. a second material collecting box; 13. a first air heater; 14. a second air heater; 15. a first discharge pipe; 16. a first outer tube; 17. a first drive motor; 18. a first screw; 19. a first extension tapping pipe; 20. a first extension plate; 21. a first transmission device; 22. a first leakage prevention plate; 23. a second outer tube; 24. a second drive motor; 25. a second screw; 26. a second extension tapping pipe; 27. a second extension plate; 28. a second transmission device; 29. a second leakage prevention plate; 30. a feeding port; 31. a rotary crusher; 32. a second pulverized coal discharging pipe; 33. a first pulverized coal discharging pipe; 34. a base; 35. a second discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the invention provides an automatic blanking type coal grinding device for a thermal power plant, comprising a main box body 1, a transmission case 2 and a main motor 3, wherein the bottom of the main box body 1 is provided with a through hole, the left side and the right side of the main box body 1 are provided with through holes, the bottom of the main box body 1 is fixedly connected with the top end of the transmission case 2, the bottom inner wall of the transmission case 2 is fixedly connected with the bottom end of the main motor 3, the output end of the main motor 3 is fixedly connected with a transmission shaft 4, the surface of the transmission shaft 4 is movably connected with the through hole at the bottom of the main box body 1, one end of the transmission shaft 4 far away from the main motor 3 is fixedly connected with a fixed roller 5, the top of the fixed roller 5 is fixedly connected with a grinding disc 6, the side surface of the transmission shaft 4 is fixedly connected with two push plates 7, the two push plates 7 are symmetrically distributed about, the through hole has been seted up in the center department of bearing plate 8, the size of this through hole and the size phase-match of transmission shaft 4, two through grooves about centrosymmetry have been seted up to the inside of bearing plate 8, and a plurality of air outlets are the same in quantity about the center department symmetric distribution of bearing plate 8, through seting up the air outlet in the inside of bearing plate 8, wind-force has indirectly been improved, the first feed divider 9 of bottom fixedly connected with of bearing plate 8, and the position of the inside through groove of first feed divider 9 and bearing plate 8 is corresponding, the bottom intercommunication of first feed divider 9 has first case 10 that gathers materials, the bottom fixedly connected with base 34 of first case 10 that gathers materials, and the side outer wall of first case 10 and the diapire fixed connection of main tank 1, the bottom of transmission case 2 and the top fixed connection.
The bottom of the bearing plate 8 is fixedly connected with a second material dividing port 11, the second material dividing port 11 corresponds to the position of a through groove in the bearing plate 8, the bottom end of the second material dividing port 11 is communicated with a second material collecting box 12, the bottom of the second material collecting box 12 is fixedly connected with the top of a base 34, the lateral outer wall of the second material collecting box 12 is fixedly connected with the bottom wall of the main box body 1, the right side of the first material collecting box 10 is communicated with a first material discharging pipe 15, one end, away from the first material collecting box 10, of the first material discharging pipe 15 is communicated with a first outer pipe 16, the bottom end of the first outer pipe 16 is fixedly connected with the top of the base 34, the bottom inner wall of the first outer pipe 16 is movably connected with a first screw rod 18, one end, away from the bottom inner wall of the first outer pipe 16, of the first screw rod 18 is fixedly connected with a first transmission motor 17, the bottom of the first transmission motor 17 is fixedly connected with the top end of the, the right side of the main box body 1 is fixedly connected with a first extension plate 20, the top end of the first extension plate 20 is fixedly connected with a first transmission device 21, the first transmission device 21 is positioned under a first extension discharge pipe 19, the top of the first extension plate 20 is fixedly connected with a first leakage-proof plate 22, the number of the first leakage-proof plates 22 is two, the two first transmission devices 21 are positioned between the two first leakage-proof plates 22 and prevent coal blocks from falling off from the first transmission device 21, the left side of the second material collection box 12 is communicated with a second discharge pipe 35, one end of the second discharge pipe 35 far away from the second material collection box 12 is communicated with a second outer pipe 23, the bottom end of the second outer pipe 23 is fixedly connected with the top of a base 34, the bottom inner wall of the second outer pipe 23 is movably connected with a second screw rod 25, one end of the second screw rod 25 far away from the bottom inner wall of the second outer pipe 23 is fixedly connected with a second transmission motor 24, the bottom of the second transmission motor 24 is fixedly connected with the top end of, the front surface of the second outer pipe 23 is communicated with a second extending material pipe 26, the left side of the main box body 1 is fixedly connected with a second extending plate 27, the top end of the second extending plate 27 is fixedly connected with a second transmission device 28, the second transmission device 28 is positioned under the second extending material pipe 26, the top of the second extending plate 27 is fixedly connected with two second leakage-proof plates 29, the number of the second leakage-proof plates 29 is two, the second transmission device 28 is positioned between the two second leakage-proof plates 29 to prevent coal blocks from falling off from the second transmission device 28, the top of the main box body 1 is communicated with a material inlet 30, the side surface of the material inlet 30 is fixedly connected with a rotary crusher 31, the number of the rotary crushers 31 is four, the four rotary crushers 31 are uniformly distributed on the side surface of the material inlet 30, a through hole on the right side of the main box body 1 is fixedly connected with a first pulverized coal discharging pipe 33, and the joint of the first pulverized coal 33 and the main box body 1, the pulverized coal leakage is prevented, a second pulverized coal discharging pipe 32 is fixedly connected with a through hole in the left side of the main box body 1, the joint of the second pulverized coal discharging pipe 32 and the main box body 1 is sealed to prevent the pulverized coal leakage, a first hot air blower 13 is fixedly connected with the inner wall of the bottom of the main box body 1, an air outlet of the first hot air blower 13 is fixedly connected with the bottom of the bearing plate 8, the joint of an air outlet of the first hot air blower 13 and the bottom of the bearing plate 8 is positioned under an air outlet in the bearing plate 8, a second hot air blower 14 is fixedly connected with the inner wall of the bottom of the main box body 1, an air outlet of the second hot air blower 14 is fixedly connected with the bottom of the bearing plate 8, the joint of an air outlet of the second hot air blower 14 and the bottom of the bearing plate 8 is positioned under the air outlet in the bearing plate 8, and the pulverized coal is sufficiently conveyed out of the main box body 1 by the, and the hot air blown by the first hot air blower 13 and the second hot air blower 14 can blow the moisture in the pulverized coal to dry while conveying the pulverized coal, so that the pulverized coal is convenient to burn.
When in use, the main motor 3 is opened, the main motor 3 drives the transmission shaft 4 to rotate, the transmission shaft 4 drives the grinding disc 6 to rotate, coal blocks are poured into the main box body 1 from the feeding port 30, the rotary crusher 31 is started, the coal blocks are among the four rotary crushers 31, the coal blocks between the rotary crushers 31 and the grinding disc 6 are extruded and ground, coal powder and the coal blocks which are not completely ground are thrown out of the grinding disc 6 due to the centrifugal force generated by the rotation of the grinding disc 6, the first hot air blower 13 and the second hot air blower 14 are started, the coal powder is blown and conveyed upwards, the coal powder leaves the main box body 1 through the first coal powder discharge pipe 33 and the second coal powder discharge pipe 32, the first transmission motor 17 and the second transmission motor 24 are started, the coal blocks in the second collection box 12 fall to the first collection box 10 from the first distribution port 9 and the second distribution port 11, the coal blocks in the second collection box 12 are conveyed by the first discharge pipe 18 and the second screw 25 and then fall onto the conveying belt of the first extension discharge pipe 19 and the second extension pipe, and finally returned to the main tank 1 through the inlet 30.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a based on thermal power plant is with automatic unloading type coal grinding device, includes main tank body (1), transmission case (2) and main motor (3), its characterized in that: the bottom of the main box body (1) is fixedly connected with the top end of the transmission box (2), the bottom inner wall of the transmission box (2) is fixedly connected with the bottom end of the main motor (3), the output end of the main motor (3) is fixedly connected with the transmission shaft (4), the surface of the transmission shaft (4) is movably connected with the through hole in the bottom of the main box body (1), one end of the transmission shaft (4), far away from the main motor (3), is fixedly connected with the fixed roller (5), the top of the fixed roller (5) is fixedly connected with the grinding disc (6), the side surface of the transmission shaft (4) is fixedly connected with the push plate (7), the side inner wall of the main box body (1) is fixedly connected with the bearing plate (8), the bottom of the bearing plate (8) is fixedly connected with the first material distributing opening (9), the first material distributing opening (9) corresponds to the position of the through groove in the bearing plate (8), the bottom end of the first material distributing opening, the bottom of the first material collecting box (10) is fixedly connected with a base (34), the outer side wall of the first material collecting box (10) is fixedly connected with the bottom wall of the main box body (1), and the bottom of the transmission box (2) is fixedly connected with the top of the base (34);
the bottom fixedly connected with second branch material mouth (11) of bearing plate (8), and the position of the inside groove that runs through of second branch material mouth (11) and bearing plate (8) is corresponding, the bottom intercommunication of second branch material mouth (11) has second collection case (12), the bottom of second collection case (12) and the top fixed connection of base (34), and the lateral outer wall of second collection case (12) and the diapire fixed connection of main tank body (1), the right side intercommunication of first collection case (10) has first discharging pipe (15), the one end intercommunication that first collection case (10) was kept away from to first discharging pipe (15) has first outer tube (16), the bottom of first outer tube (16) and the top fixed connection of base (34), the end inner wall swing joint of first outer tube (16) has first screw rod (18), the one end fixedly connected with first drive motor (17) of the end inner wall that first outer tube (18) was kept away from first collection case (16), the bottom of the first transmission motor (17) is fixedly connected with the top end of the first outer pipe (16), the front of the first outer pipe (16) is communicated with a first extension discharge pipe (19), the right side of the main box body (1) is fixedly connected with a first extension plate (20), the top end of the first extension plate (20) is fixedly connected with a first transmission device (21), the first transmission device (21) is positioned under the first extension discharge pipe (19), the top of the first extension plate (20) is fixedly connected with a first leakage-proof plate (22), the left side of the second collection box (12) is communicated with a second discharge pipe (35), one end, far away from the second collection box (12), of the second discharge pipe (35) is communicated with a second outer pipe (23), the bottom end of the second outer pipe (23) is fixedly connected with the top of the base (34), and the bottom inner wall of the second outer pipe (23) is movably connected with a second screw (25), one end, far away from the bottom inner wall of the second outer pipe (23), of the second screw (25) is fixedly connected with a second transmission motor (24), the bottom of the second transmission motor (24) is fixedly connected with the top end of the second outer pipe (23), the front face of the second outer pipe (23) is communicated with a second extension discharge pipe (26), the left side of the main box body (1) is fixedly connected with a second extension plate (27), the top end of the second extension plate (27) is fixedly connected with a second transmission device (28), the second transmission device (28) is positioned under the second extension discharge pipe (26), the top of the second extension plate (27) is fixedly connected with a second leakage-proof plate (29), the top of the main box body (1) is communicated with a feeding port (30), the side face of the feeding port (30) is fixedly connected with a rotary crusher (31), a pulverized coal through hole on the right side of the main box body (1) is fixedly connected with a first discharge pipe (33), the left through hole fixedly connected with second buggy discharging pipe (32) of main tank body (1), the first air heater (13) of end inner wall fixedly connected with of main tank body (1), the air outlet of first air heater (13) and the bottom fixed connection of bearing plate (8), and the junction of the air outlet of first air heater (13) and the bottom of bearing plate (8) is located under the inside air outlet of bearing plate (8), the end inner wall fixedly connected with second air heater (14) of main tank body (1), the air outlet of second air heater (14) and the bottom fixed connection of bearing plate (8), and the junction of the air outlet of second air heater (14) and the bottom of bearing plate (8) is located under the inside air outlet of bearing plate (8).
2. The automatic blanking type coal grinding device for the thermal power plant according to claim 1, wherein: the bottom of the main box body (1) is provided with a through hole, and the left side and the right side of the main box body (1) are provided with a through hole.
3. The automatic blanking type coal grinding device for the thermal power plant according to claim 1, wherein: the number of the push plates (7) is two, and the two push plates (7) are symmetrically distributed around the axis of the transmission shaft (4).
4. The automatic blanking type coal grinding device for the thermal power plant according to claim 1, wherein: the bearing plate is characterized in that a through hole is formed in the center of the bearing plate (8), the size of the through hole is matched with that of the transmission shaft (4), two through grooves which are symmetrical about the center are formed in the bearing plate (8), a plurality of air outlets are formed in the bearing plate (8), and the air outlets are symmetrically distributed about the center of the bearing plate (8) in equal number.
5. The automatic blanking type coal grinding device for the thermal power plant according to claim 1, wherein: the number of the first leakage-proof plates (22) is two, and the first transmission device (21) is positioned between the two first leakage-proof plates (22).
6. The automatic blanking type coal grinding device for the thermal power plant according to claim 1, wherein: the number of the second leakage-proof plates (29) is two, and the second transmission device (28) is positioned between the two second leakage-proof plates (29).
7. The automatic blanking type coal grinding device for the thermal power plant according to claim 1, wherein: the number of the rotary crushers (31) is four, and the four rotary crushers (31) are uniformly distributed on the side face of the feeding port (30).
8. The automatic blanking type coal grinding device for the thermal power plant according to claim 1, wherein: the connection part of the first coal powder discharging pipe (33) and the main box body (1) is sealed, and the connection part of the second coal powder discharging pipe (32) and the main box body (1) is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216542.1A CN110947469B (en) | 2019-12-02 | 2019-12-02 | Automatic blanking type coal grinding device for thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216542.1A CN110947469B (en) | 2019-12-02 | 2019-12-02 | Automatic blanking type coal grinding device for thermal power plant |
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| CN110947469A true CN110947469A (en) | 2020-04-03 |
| CN110947469B CN110947469B (en) | 2021-09-21 |
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2019
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| JP2000237626A (en) * | 1998-12-24 | 2000-09-05 | Onoda Eng Kk | Milling and sieving apparatus |
| CN205833269U (en) * | 2016-07-01 | 2016-12-28 | 桂林晟兴机械制造有限公司 | Outer circulation flour mill |
| CN207887253U (en) * | 2017-12-22 | 2018-09-21 | 焦作千业水泥有限责任公司 | A kind of vertical pulverizer is with selecting powder material return mechanism |
| CN208213401U (en) * | 2018-02-28 | 2018-12-11 | 营口中润环境科技有限公司 | A kind of vertical spindle coal pulveriser pebble coal processing unit |
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