CN115283089A - Jet mill device for grinding powder - Google Patents
Jet mill device for grinding powder Download PDFInfo
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- CN115283089A CN115283089A CN202211072258.3A CN202211072258A CN115283089A CN 115283089 A CN115283089 A CN 115283089A CN 202211072258 A CN202211072258 A CN 202211072258A CN 115283089 A CN115283089 A CN 115283089A
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- 239000000843 powder Substances 0.000 title claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 87
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- 238000004062 sedimentation Methods 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims description 34
- 238000012423 maintenance Methods 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
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- 239000003245 coal Substances 0.000 description 37
- 239000002817 coal dust Substances 0.000 description 16
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- 230000005484 gravity Effects 0.000 description 3
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- 229910001018 Cast iron Inorganic materials 0.000 description 1
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Images
Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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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- 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
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
Abstract
The invention relates to the technical field of grinding, in particular to an airflow mill device for grinding powder, which comprises a grinding bottom plate, an auxiliary driving mechanism, a grinding mechanism and a grading mechanism, wherein the grinding bottom plate is fixedly provided with a cyclone dust removal mechanism and an annular grinding base through a plurality of support rods, the cyclone dust removal mechanism is positioned on one side of the annular grinding base, a grinding disc is rotatably arranged inside the annular grinding base, a grinding cylinder is fixedly arranged on the annular grinding base, a cylinder cover is fixedly arranged on the grinding cylinder, a sedimentation cylinder frame is fixedly arranged on the cylinder cover and positioned inside the grinding cylinder, and the auxiliary driving mechanism is arranged between the grinding disc and the grinding bottom plate.
Description
Technical Field
The invention relates to the technical field of grinding, in particular to an airflow grinding device for grinding powder.
Background
The air flow mill is used as an important device for superfine grinding, the working principle of the air flow mill is that a material crushed by the air flow mill is conveyed into an impeller classification area by ascending air flow, under the action of centrifugal force of a classification wheel and suction force of a fan, the separation of coarse powder and fine powder is realized, coarse powder returns to a crushing chamber according to the self gravity to be continuously crushed, qualified fine powder enters a cyclone collector along with the air flow, fine dust is collected by a bag type dust collector and the like, purified gas is discharged by a draught fan, the air flow mill is widely applied to the superfine grinding of non-metal minerals and chemical raw materials by people, along with the continuous development of society, coal powder is used as an additive most commonly adopted in cast iron molding sand, in recent years, foreign substances such as coal powder and clay are prepared into a commodity (carbon clay) for supply market, the demand of the society for the coal powder is more and more, and in the process of grinding the coal powder, the partial principle of the air flow mill is adopted, and a device is used for grinding coal powder into powder by a grinding mechanism and then collecting the coal powder.
Although the coal mine can be crushed and collected in the process of grinding the pulverized coal by the conventional jet mill equipment, the load of a grinding roller is relatively large due to the characteristics of the pulverized coal, and the phenomenon that the grinding roller is damaged frequently occurs.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the airflow mill device for grinding the powder, which is convenient for quickly grinding and collecting the coal blocks when the coal blocks are ground and produced, is more convenient for quickly maintaining the grinding parts after the grinding parts are damaged due to reasons, and has higher operation capability and stronger applicability.
(II) technical scheme
In order to achieve the purpose, the invention provides an airflow mill device for grinding powder, which comprises a grinding bottom plate, an auxiliary driving mechanism, a grinding mechanism and a grading mechanism, wherein the grinding bottom plate is provided with a grinding head;
a cyclone dust removal mechanism and an annular grinding base are fixedly arranged on the grinding bottom plate through a plurality of support rods, the cyclone dust removal mechanism is positioned on one side of the annular grinding base, a grinding disc is rotatably arranged inside the annular grinding base, a grinding cylinder is fixedly arranged on the annular grinding base, a cylinder cover is fixedly arranged on the grinding cylinder, a sedimentation cylinder frame is fixedly arranged on the cylinder cover, and the sedimentation cylinder frame is positioned inside the grinding cylinder;
the auxiliary driving mechanism is arranged between the grinding disc and the grinding bottom plate;
the air blowing mechanism is arranged on the annular grinding base, an annular air inlet through hole is formed in the annular grinding base, an annular dust blocking net is arranged inside the annular air inlet through hole, and the air blowing mechanism is arranged on the grinding bottom plate and is partially communicated with one end of the annular air inlet through hole;
the grinding mechanism is installed on the grinding bottom plate, part of the grinding mechanism is located inside the grinding cylinder, and the grinding mechanism and the grinding cylinder are detachably installed through a plurality of bolts;
the grading mechanism is arranged on the barrel cover, one end of the grading mechanism is communicated with the barrel cover, and the other end of the grading mechanism is communicated with the input end of the cyclone dust removal mechanism through a flange plate.
According to the airflow mill device for grinding powder, the cyclone dust removal mechanism comprises a spiral air inlet pipe, a cyclone cylinder, an exhaust pipe, a powder collection cylinder and a powder collection box, wherein the cyclone cylinder is fixedly arranged on the grinding bottom plate through a plurality of support rods, the spiral air inlet pipe is communicated with the upper part of the cyclone cylinder, the exhaust pipe is communicated with one end of the cyclone cylinder and partially extends into the cyclone cylinder, an auxiliary exhaust fan is arranged in the exhaust pipe, one end of the powder collection cylinder is communicated with the other end of the cyclone cylinder, the other end of the powder collection cylinder is communicated with the powder collection box, the powder collection box is fixedly arranged on the grinding bottom plate, and a powder collection box is detachably arranged in the powder collection box in a sliding manner.
According to the jet mill device for grinding powder provided by the invention, the auxiliary driving mechanism comprises a driving rod, a large bevel gear, a small bevel gear, a driving motor and a reduction gearbox, one end of the driving rod is fixedly arranged on the grinding disc, the other end of the driving rod is rotatably arranged on the grinding bottom plate, the large bevel gear is fixedly arranged on the driving rod, the driving motor and the reduction gearbox are both arranged on the grinding bottom plate, the output end of the driving motor and the output end of the reduction gearbox are fixedly arranged, the output end of the reduction gearbox and the small bevel gear are fixedly arranged, and the small bevel gear and the large bevel gear are mutually meshed.
According to the airflow mill device for grinding powder, the air blowing mechanism comprises an annular air blowing box, an annular dispersing guide plate and a plurality of fans, the annular air blowing box is detachably mounted on the annular grinding base through a plurality of bolts and is communicated with the annular air inlet through hole, the fans are mounted on the grinding base plate and are distributed around the annular air blowing box at equal angles, the output ends of the fans are communicated with the annular air blowing box, and the annular dispersing guide plate is fixedly mounted inside the annular air blowing box and corresponds to the output ends of the fans.
According to the jet mill device for grinding powder, which is provided by the invention, the grinding mechanism comprises a plurality of grinding components, the plurality of grinding components are distributed around the grinding cylinder at equal angles, the grinding components comprise a grinding roller, a grinding shaft, a Z-shaped pipe, two universal couplings, a maintenance cover, a chain wheel I, a chain wheel II, a grinding motor and a motor bearing part for bearing and adjusting the positions of the grinding motor, a maintenance through hole is formed in the grinding cylinder, the maintenance cover is detachably arranged on the grinding cylinder through a plurality of bolts III, part of the maintenance through hole is positioned in the maintenance through hole, the Z-shaped pipe is fixedly arranged on the maintenance cover, the two universal couplings are fixedly connected and partially positioned in the Z-shaped pipe, fixed blocks are rotatably arranged on the other part of the two universal couplings, the two fixed blocks are respectively and fixedly arranged at two ends of the Z-shaped pipe, one end of the universal coupling positioned at one side is fixedly arranged with one end of the grinding shaft, the grinding roller is fixedly arranged on the grinding roller, one end of the universal coupling positioned at the other side is fixedly arranged on the grinding roller, the grinding roller is fixedly arranged between one end of the universal coupling positioned on the chain wheel II, the bearing bottom plate, the motor bearing part is fixedly arranged on the grinding bottom plate, the grinding motor is arranged between the first chain wheel, the grinding motor and the chain wheel, the output end of the grinding motor, and the first chain wheel, and the grinding motor bearing part of the grinding motor are fixedly arranged between the grinding motor;
the grinding motor comprises a motor bearing part and is characterized in that the motor bearing part comprises a bearing rod, an annular bearing plate, two sliding rods, an adjusting screw, a motor base, an adjusting turntable and two limiting nuts, the bearing rod is fixedly installed on the grinding bottom plate, the annular bearing plate is fixedly installed on the bearing rod, the two sliding rods are fixedly installed inside the annular bearing plate, the motor base is slidably installed on the two sliding rods, threaded holes are formed in the motor base, the adjusting screw is rotatably installed on the annular bearing plate, part of the adjusting screw is in threaded connection with the threaded holes in the motor base, the grinding motor is installed on the motor base, the two limiting nuts are in threaded connection with the adjusting screw, the limiting nuts are located on the two sides of the motor base, and the adjusting turntable is fixedly installed at one end of the adjusting screw.
According to the airflow mill device for grinding powder, the grading mechanism comprises an annular grading seat, an annular grading block, a bucket type screening cover, an annular grading cover, a grading exhaust fan, a grading pipe, a third chain wheel, a fourth chain wheel, a second chain wheel and a grading motor, wherein one end of the annular grading seat is communicated with the cylinder cover, one end of the annular grading block is rotatably installed at the other end of the annular grading seat, one end of the annular grading cover is rotatably installed at the other end of the annular grading block, the annular grading cover is fixedly installed on the cylinder cover through a plurality of support rods, the other end of the grading pipe is communicated with one end of the grading pipe, the other end of the grading pipe is detachably communicated with a spiral air inlet pipe through a flange plate, the grading exhaust fan is installed inside the annular grading cover, the bucket type screening cover is fixedly installed on the annular grading block and is partially positioned inside the cylinder cover and the annular grading seat, the fourth chain wheel is fixedly installed on the outer side wall of the annular grading block, the grading motor is installed on one side of the grinding cylinder through a grading seat, the output end of the grading motor is fixedly installed with one end of the third chain wheel, and the second chain wheel are in a transmission connection between the third chain wheel and the fourth chain wheel.
According to the jet mill device for grinding powder provided by the invention, the grinding bottom plate is provided with the gear box for protecting the large bevel gear and the small bevel gear.
According to the airflow mill device for grinding powder provided by the invention, the grinding cylinder is communicated with the feeding pipe, and the feeding pipe is provided with the pipe cover.
(III) advantageous effects
Compared with the known public technology, the invention provides the airflow mill device for grinding the powder, which has the following beneficial effects:
according to the jet mill device for grinding the powder, coal briquettes in the grinding cylinder can be conveniently ground into powder through the matching between the grinding disc on the annular grinding base, the auxiliary driving mechanism and the grinding mechanism, the pulverized coal after grinding can be conveniently blown and sieved through the matching between the air blowing mechanism and the grading mechanism, pulverized coal with larger particles can fall onto the grinding disc again through the sedimentation cylinder frame to be secondarily ground until the ground particles meet the requirements, the pulverized coal meeting the requirements can enter the cyclone dust removal mechanism through the grading mechanism, the pulverized coal and gas are separated through the cyclone dust removal mechanism, the concentrated collection of the pulverized coal is realized, when the grinding mechanism is damaged due to the cause, the damaged part can be conveniently and quickly detached and maintained through the matching between the grinding mechanism and the grinding cylinder, and therefore, when the jet mill device for grinding the coal briquettes is used for producing the pulverized coal briquettes, not only is the pulverized coal and is collected quickly, but also the part can be maintained and treated quickly after the grinding part is damaged due to the cause, and the jet mill device is high in operation capability and high in applicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic perspective view of the present invention in partial cross-section;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic perspective view of another embodiment of the present invention;
FIG. 4 is a schematic perspective view, partially in section, of a partially engaged grinding mechanism of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1A;
FIG. 6 is an enlarged partial view of FIG. 1 at B;
FIG. 7 is an enlarged view of a portion of FIG. 1 at C;
FIG. 8 is an enlarged view of a portion of FIG. 1 at D;
fig. 9 is a partial enlarged structural view at E in fig. 4 according to the present invention.
The reference numerals in the drawings denote: 1. grinding the bottom plate; 2. a support bar; 3. an annular grinding base; 4. a grinding disc; 5. a grinding cylinder; 6. a cylinder cover; 7. a settling cylinder frame; 8. an annular dust blocking net; 9. a flange plate; 10. a spiral air inlet pipe; 11. a cyclone; 12. an exhaust duct; 13. a powder collecting cylinder; 14. a powder collecting box; 15. an auxiliary exhaust fan; 16. powder collecting box; 17. a drive rod; 18. a large bevel gear; 19. a small bevel gear; 20. a drive motor; 21. a reduction gearbox; 22. an annular blowcase; 23. an annular dispersion guide plate; 24. a fan; 25. a grinding roller; 26. grinding the shaft; 27. a Z-shaped pipe; 28. a universal coupling; 29. maintaining the cover; 30. a first chain; 31. a second chain wheel; 32. grinding the motor; 33. a carrier bar; 34. an annular bearing plate; 35. a slide bar; 36. adjusting the screw rod; 37. a motor base; 38. adjusting the turntable; 39. a limit nut; 40. an annular grading seat; 41. an annular grading block; 42. a hopper-shaped screening hood; 43. an annular grading cover; 44. a grading exhaust fan; 45. a grading pipe; 46. a fourth chain wheel; 47. a second chain; 48. a grading motor; 49. a gear case; 50. a feed pipe; 51. a tube cover; 101. a cyclone dust removal mechanism; 102. an auxiliary drive mechanism; 103. a blowing mechanism; 104. a grinding mechanism; 105. and (4) a grading mechanism.
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.
Examples
Referring to fig. 1-9, an air current mill apparatus for grinding powder includes a grinding bottom plate 1, an auxiliary driving mechanism 102, a grinding mechanism 104, and a grading mechanism 105, wherein a cyclone dust removing mechanism 101 and an annular grinding base 3 are fixedly installed on the grinding bottom plate 1 through a plurality of support rods 2, the cyclone dust removing mechanism 101 is located at one side of the annular grinding base 3, a grinding disc 4 is rotatably installed inside the annular grinding base 3, a grinding cylinder 5 is fixedly installed on the annular grinding base 3, a cylinder cover 6 is fixedly installed on the grinding cylinder 5, a settling cylinder frame 7 is fixedly installed on the cylinder cover 6, the settling cylinder frame 7 is located inside the grinding cylinder 5, specifically, through cooperation between the grinding disc 4 on the annular grinding base 3 and the auxiliary driving mechanism 102 and the grinding mechanism 104, coal briquettes inside the grinding cylinder 5 are conveniently ground into powder, through cooperation between an air blowing mechanism 103 and the grading mechanism 105, pulverized coal after grinding is conveniently subjected to air current blowing and screening, larger particles fall onto the grinding disc 4 again through the settling cylinder frame 7 to be ground until the particles meet requirements, the pulverized coal enters the air current dust removing mechanism 101, and the pulverized coal are collected by the grading mechanism 101, and the air dust removing mechanism 105;
the auxiliary driving mechanism 102 is installed between the grinding disc 4 and the grinding bottom plate 1, specifically, the auxiliary driving mechanism 102 is matched to conveniently drive the grinding disc 4 to rotate, and the pulverized coal on the grinding disc 4 is convenient to deviate to the air blowing mechanism 103 through centrifugal force generated during rotation through rotation of the grinding disc 4;
the annular grinding base 3 is provided with an annular air inlet through hole, an annular dust blocking net 8 is arranged inside the annular air inlet through hole, the air blowing mechanism 103 is arranged on the grinding bottom plate 1, and part of the air blowing mechanism is communicated with one end of the annular air inlet through hole, and particularly, the air blowing mechanism 103 is used for conveniently blowing and sorting the ground coal powder;
the grinding mechanism 104 is installed on the grinding bottom plate 1, part of the grinding mechanism 104 is located inside the grinding cylinder 5 and is detachably installed with the grinding cylinder 5 through a plurality of bolts, and particularly, the coal briquette is conveniently ground and crushed through the matching of the grinding mechanism 104;
Wherein, the cyclone dust removing mechanism 101 comprises a spiral air inlet pipe 10, a cyclone cylinder 11, an exhaust pipe 12, a powder collecting cylinder 13 and a powder collecting box 14, the cyclone cylinder 11 is fixedly arranged on the grinding bottom plate 1 through a plurality of support rods 2, the spiral air inlet pipe 10 is communicated with the upper part of the cyclone cylinder 11, the exhaust pipe 12 is communicated with one end of the cyclone cylinder 11, and part of the dust collecting box extends to the inside of the cyclone cylinder 11, an auxiliary exhaust fan 15 is arranged inside the exhaust pipe 12, one end of the powder collecting cylinder 13 is communicated with the other end of the cyclone cylinder 11, the other end of the powder collecting cylinder 13 is communicated with the powder collecting box 14, the powder collecting box 14 is fixedly arranged on the grinding bottom plate 1, the powder collecting box 16 is detachably arranged inside the powder collecting box 14 in a sliding manner, after the gas carrying pulverized coal enters the interior of the cyclone 11 through the spiral air inlet pipe 10, the gas changes from linear motion into curvilinear motion, the coal dust is spirally moved downwards in the cyclone cylinder 11, the coal dust is attached to the insides of the cyclone cylinder 11 and the coal dust collecting cylinder 13 through the centrifugal force generated during rotation, the separation of the coal dust and the gas is realized, the separated gas can be discharged out of the inside of the cyclone cylinder 11 through the exhaust pipe 12, the separated coal dust falls into the inside of the coal dust collecting box 14 through the coal dust collecting cylinder 13 under the influence of gravity, the centralized collection of the coal dust is realized, and the supplement description is that, if the gas exhausted by the exhaust pipe 12 still contains part of fine coal powder, the gas can be filtered by external equipment such as bag-type dust removal equipment until the gas reaches the standard and then is exhausted into the atmosphere, the auxiliary exhaust duct 12 in the above-mentioned document is for discharging the gas separated from the interior of the cyclone 11 out of the interior of the cyclone 11 better, meanwhile, the power required by filtration can be conveniently provided when the gas passes through external dust removal equipment.
The auxiliary driving mechanism 102 comprises a driving rod 17, a large bevel gear 18, a small bevel gear 19, a driving motor 20 and a reduction gearbox 21, one end of the driving rod 17 is fixedly mounted on the grinding disc 4, the other end of the driving rod 17 is rotatably mounted on the grinding bottom plate 1, the large bevel gear 18 is fixedly mounted on the driving rod 17, the driving motor 20 and the reduction gearbox 21 are both mounted on the grinding bottom plate 1, the output end of the driving motor 20 and the output end of the reduction gearbox 21 are fixedly mounted, the output end of the reduction gearbox 21 and the small bevel gear 19 are fixedly mounted, and the small bevel gear 19 and the large bevel gear 18 are mutually meshed.
Wherein, as shown in fig. 4, the grinding mechanism 104 comprises a plurality of grinding components which are distributed around the grinding cylinder 5 with equal angles, the grinding components comprise a grinding roller 25, a grinding shaft 26, a Z-shaped pipe 27, two universal couplings 28, a maintenance cover 29, a first chain wheel, a first chain 30, a second chain wheel 31, a grinding motor 32 and a motor bearing part for bearing and adjusting the position of the grinding motor 32, a maintenance through hole is arranged on the grinding cylinder 5, the maintenance cover 29 is detachably arranged on the grinding cylinder 5 through a plurality of bolts three, and part of the maintenance through hole is arranged inside the maintenance through hole, the Z-shaped pipe 27 is fixedly arranged on the maintenance cover 29, the two universal couplings 28 are fixedly connected, and part of the maintenance through hole is arranged inside the Z-shaped pipe 27, the other part of the two universal couplings 28 is rotatably arranged with a fixed block, the two fixed blocks are respectively and fixedly arranged at two ends of the Z-shaped pipe 27, one end of a universal coupling 28 positioned on one side and one end of a grinding shaft 26 are fixedly installed, the grinding roller 25 is fixedly and detachably installed on the grinding roller 25, one end of the universal coupling 28 positioned on the other side and a chain wheel II 31 are fixedly installed, a motor bearing part is fixedly installed on the grinding bottom plate 1, a grinding motor 32 is installed on a motor bearing part, an output end of the grinding motor 32 and the chain wheel I are fixedly installed, a chain I30 is in transmission connection between the chain wheel II 31 and the chain wheel I, concretely, when coal blocks on a grinding disc 4 are ground, the grinding motor 32 is started, an output end of the grinding motor 32 drives the chain wheel I to rotate, the chain wheel I rotates through the chain I30 to drive the chain wheel II 31 to rotate, the chain wheel II 31 drives the universal coupling 28 connected with the chain wheel II to rotate, the universal coupling 28 on the other side to move, the universal coupling 28 on the other side drives the grinding shaft 26 connected with the chain wheel II to move, the grinding roller 25 is driven by the grinding shaft 26 to rotate to grind the coal briquettes on the grinding disc 4 into powder, and supplementary notes that the distance between the grinding roller 25 and the grinding disc 4 is set to be the diameter of the required coal dust particles, when the required coal dust particles change, the required coal dust particles can be ground by replacing the grinding roller 25 with the type corresponding to the required coal dust particles, and supplementary notes that the rotating direction of the grinding roller 25 is opposite to that of the grinding disc 4;
wherein, the motor bearing part comprises a bearing rod 33, an annular bearing plate 34, two slide bars 35, an adjusting screw 36, a motor seat 37, an adjusting turntable 38 and two limit nuts 39, the bearing rod 33 is fixedly arranged on the grinding bottom plate 1, the annular bearing plate 34 is fixedly arranged on the bearing rod 33, the two slide bars 35 are fixedly arranged in the annular bearing plate 34, the motor seat 37 is slidably arranged on the two slide bars 35, a threaded hole is arranged on the motor seat 37, the adjusting screw 36 is rotatably arranged on the annular bearing plate 34, and part of the adjusting screw is in threaded connection with the threaded hole on the motor seat 37, the grinding motor 32 is arranged on the motor seat 37, the two limit nuts 39 are in threaded connection with the adjusting screw 36 and are positioned at two sides of the motor seat 37, the adjusting turntable 38 is fixedly arranged at one end of the adjusting screw 36, concretely, when the grinding roller 25 is damaged due to a cause, the limiting nut 39 is rotated to move to a certain distance from the motor base 37, the adjusting turntable 38 is rotated, the adjusting turntable 38 drives the adjusting screw rod 36 to rotate, the motor base 37 and the adjusting screw rod 36 are in threaded connection and are limited by the sliding rod 35, therefore, the rotation of the adjusting screw rod 36 drives the motor base 37 to move, the motor base 37 drives the grinding motor 32 to move, the first chain wheel and the second chain wheel 31 move oppositely through the movement of the grinding motor 32, the first chain 30 is taken down after the grinding motor 32 moves to a certain distance, the third bolt is screwed down after the first chain 30 is taken down, the maintenance cover 29 is separated from the grinding cylinder 5, and then the grinding roller 25 is taken out from the inside of the grinding cylinder 5 through the maintenance cover 29 to be maintained.
The air blowing mechanism 103 comprises an annular air blowing box 22, an annular dispersing guide plate 23 and a plurality of fans 24, the annular air blowing box 22 is detachably mounted on the annular grinding base 3 through a plurality of bolts two and is communicated with the annular air inlet through holes, the fans 24 are mounted on the grinding base plate 1 and are distributed around the annular air blowing box 22 at equal angles, the output ends of the fans 24 are communicated with the annular air blowing box 22, the annular dispersing guide plate 23 is fixedly mounted inside the annular air blowing box 22 and corresponds to the output ends of the fans 24, specifically, when the ground coal powder is subjected to air flow screening, the ground and pulverized coal powder moves to the annular air inlet through holes under the influence of centrifugal force generated when the grinding disc 4 rotates, the fans 24 are started, the fans 24 blow outside air into the annular air blowing box 22, the air is dispersed through the annular dispersing guide plate 23 inside the annular air blowing box 22, the ground coal powder uniformly blows large particles to the coal powder on the annular air blowing box through the annular dust blocking net 8, the annular dust blocking net 8 prevents the coal block which cannot be blown into the annular air blowing box from entering the annular air blowing box 22, and simultaneously blows large particles onto the grinding roller 4 through the air blowing net 25.
Wherein, the grading mechanism 105 comprises an annular grading seat 40, an annular grading block 41, a bucket-shaped screening cover 42, an annular grading cover 43, a grading exhaust fan 44, a grading pipe 45, a third chain wheel, a fourth chain wheel 46, a second chain 47 and a grading motor 48, one end of the annular grading seat 40 is communicated with the cylinder cover 6, one end of the annular grading block 41 is rotatably arranged at the other end of the annular grading seat 40, one end of the annular grading cover 43 is rotatably arranged at the other end of the annular grading block 41, the annular grading cover 43 is fixedly arranged on the cylinder cover 6 through a plurality of support rods, the other end of the grading pipe 45 is communicated with one end of the grading pipe 45 through a flange 9, the grading exhaust fan 44 is arranged in the annular grading cover 43, the bucket-shaped screening cover 42 is fixedly arranged on the annular grading block 41 and is partially positioned in the cylinder cover and the annular grading seat 40, a fourth chain wheel 46 is fixedly arranged on the outer side wall of the annular grading block 41, a grading motor 48 is arranged on one side of the grinding cylinder 5 through a grading base, the output end of the grading motor 48 is fixedly arranged with one end of a third chain wheel 47, a second chain 47 is connected between the third chain wheel and the fourth chain wheel 46 in a transmission manner, specifically, when the coal dust blown by the fan 24 is graded and screened, firstly, a hopper-shaped screening cover 42 with a corresponding type is selected according to the size of the required coal dust, when the gas with the coal dust passes through the hopper-shaped screening cover 42, the grading motor 48 is started, the output end of the grading motor 48 drives the third chain wheel to rotate, the rotation of the third chain wheel drives the fourth chain wheel 46 to rotate through the second chain 47, the fourth chain wheel 46 drives the annular grading block 41 to rotate, the annular grading block 41 drives the hopper-shaped screening cover 42 therein to rotate, the up-to-standard coal dust particles can pass through the hopper-shaped screen along with the gas flow, make its inside that gets into hierarchical pipe 45 through the rotation of hierarchical exhaust fan 44 again, then get into cyclone dust removal mechanism 101 and collect the buggy can, the great buggy of granule can't be when screening cover 42 through the fill type, can throw into the inside of depositing barrel holder 7 through the rotation of fill type screening cover 42, the influence of receiving gravity grinds it from new landing to abrasive disc 4 in the inside of depositing barrel holder 7, screen cover 42 back through the fill type until the buggy is up to standard, can accomplish through the air current screening, realize the processing production to the buggy.
Wherein, install gear box 49 that is used for protecting big bevel gear 18 and little bevel gear 19 on grinding bottom plate 1, specifically, be convenient for carry out the protection to a certain extent to big bevel gear 18 and little bevel gear 19 through gear box 49.
Wherein, the last intercommunication of grinding vessel 5 has inlet pipe 50, installs tube cap 51 on the inlet pipe 50, and is specific, through opening tube cap 51, is convenient for through inlet pipe 50 to the inside interpolation coal cinder of grinding vessel 5, through covering tube cap 51, guarantees through fan 24 when blowing the inside buggy of grinding vessel 5, the buggy can not discharge through inlet pipe 50.
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. An air flow mill device for grinding powder, comprising:
the grinding device comprises a grinding bottom plate (1), wherein a cyclone dust removal mechanism (101) and an annular grinding base (3) are fixedly mounted on the grinding bottom plate (1) through a plurality of supporting rods (2), the cyclone dust removal mechanism (101) is located on one side of the annular grinding base (3), a grinding disc (4) is rotatably mounted inside the annular grinding base (3), a grinding cylinder (5) is fixedly mounted on the annular grinding base (3), a cylinder cover (6) is fixedly mounted on the grinding cylinder (5), a sedimentation cylinder frame (7) is fixedly mounted on the cylinder cover (6), and the sedimentation cylinder frame (7) is located inside the grinding cylinder (5);
an auxiliary drive mechanism (102), the auxiliary drive mechanism (102) being mounted between the grinding disc (4) and the grinding baseplate (1);
the air blowing mechanism (103) is positioned on the annular grinding base (3), an annular air inlet through hole is formed in the annular grinding base (3), an annular dust blocking net (8) is arranged inside the annular air inlet through hole, and the air blowing mechanism (103) is installed on the grinding bottom plate (1) and is partially communicated with one end of the annular air inlet through hole;
the grinding mechanism (104) is installed on the grinding base plate (1), part of the grinding mechanism (104) is located inside the grinding cylinder (5), and the grinding mechanism and the grinding cylinder (5) are detachably installed through a plurality of bolts;
the grading mechanism (105) is installed on the barrel cover (6), one end of the grading mechanism (105) is communicated with the barrel cover (6), and the other end of the grading mechanism is communicated with the input end of the cyclone dust removal mechanism (101) through a flange plate (9).
2. The jet mill device for grinding powder according to claim 1, wherein the cyclone dust removing mechanism (101) comprises a spiral air inlet pipe (10), a cyclone (11), an exhaust pipe (12), a powder collecting cylinder (13) and a powder collecting box (14);
cyclone (11) through a plurality of bracing pieces (2) fixed mounting be in on grinding bottom plate (1), spiral air-supply line (10) intercommunication is in the upper portion of cyclone (11), exhaust pipe (12) intercommunication is in the one end of cyclone (11), and the part extends to the inside of cyclone (11), the internally mounted of exhaust pipe (12) has supplementary exhaust fan (15), communicate each other between the one end of collection powder section of thick bamboo (13) and cyclone (11) the other end, communicate each other between the other end of collection powder section of thick bamboo (13) and collection powder case (14), collection powder case (14) fixed mounting be in on grinding bottom plate (1), the inside slip demountable installation of collection powder case (14) has collection powder case (16).
3. The jet mill device for grinding powder according to claim 2, wherein the auxiliary driving mechanism (102) comprises a driving rod (17), a large bevel gear (18), a small bevel gear (19), a driving motor (20) and a reduction box (21);
one end of the driving rod (17) is fixedly installed on the grinding disc (4), the other end of the driving rod is rotatably installed on the grinding bottom plate (1), the large umbrella-shaped gear (18) is fixedly installed on the driving rod (17), the driving motor (20) and the reduction gearbox (21) are installed on the grinding bottom plate (1), the output end of the driving motor (20) and the output end of the reduction gearbox (21) are fixedly installed, the output end of the reduction gearbox (21) and the small umbrella-shaped gear (19) are fixedly installed, and the small umbrella-shaped gear (19) and the large umbrella-shaped gear (18) are meshed with each other.
4. The jet mill device for grinding powder according to claim 3, wherein the blowing mechanism (103) comprises an annular blowing box (22), an annular dispersing guide plate (23) and a plurality of fans (24);
annular blowcase (22) through a plurality of two demountable installation of bolt be in on annular grinding base (3), and with be linked together between the annular air inlet through-hole, it is a plurality of fan (24) are all installed grind bottom plate (1) on, and wait angular distribution and be in around annular blowcase (22), communicate each other between the output of a plurality of fan (24) and annular blowcase (22), annular dispersion baffle (23) fixed mounting is in the inside of annular blowcase (22), and with a plurality of the output of fan (24) is corresponding.
5. The jet mill device for grinding powder according to claim 4, characterized in that the grinding mechanism (104) comprises a plurality of grinding assemblies which are equally angularly distributed around the grinding cylinder (5);
the grinding assembly comprises a grinding roller (25), a grinding shaft (26), a Z-shaped pipe (27), two universal couplings (28), a maintenance cover (29), a chain wheel I (30), a chain wheel II (31), a grinding motor (32) and a motor bearing part for bearing and adjusting the position of the grinding motor (32);
the grinding cylinder (5) is provided with a maintenance through hole, the maintenance cover (29) is detachably mounted on the grinding cylinder (5) through a plurality of three bolts, part of the maintenance cover is located inside the maintenance through hole, the Z-shaped pipe (27) is fixedly mounted on the maintenance cover (29), two universal couplings (28) are fixedly connected, and all parts of the maintenance cover are located inside the Z-shaped pipe (27), the other parts of the two universal couplings (28) are respectively and rotatably mounted with a fixed block, the two fixed blocks are respectively and fixedly mounted at two ends of the Z-shaped pipe (27), one end of the universal coupling (28) located at one side is fixedly mounted with one end of the grinding shaft (26), the grinding roller (25) is fixedly and detachably mounted on the grinding roller (25), one end of the universal coupling (28) located at the other side is fixedly mounted with the second chain wheel (31), the motor bearing part is fixedly mounted on the grinding bottom plate (1), the grinding motor (32) is mounted on the motor bearing part, the output end of the grinding motor (32) is fixedly mounted with the first chain wheel (30), and the first chain wheel (31) is connected between the second chain wheel (31);
the motor bearing part comprises a bearing rod (33), an annular bearing plate (34), two sliding rods (35), an adjusting screw rod (36), a motor base (37), an adjusting turntable (38) and two limiting nuts (39);
the grinding machine is characterized in that the bearing rod (33) is fixedly installed on the grinding bottom plate (1), the annular bearing plate (34) is fixedly installed on the bearing rod (33), the two sliding rods (35) are fixedly installed inside the annular bearing plate (34), the motor base (37) is slidably installed on the two sliding rods (35), a threaded hole is formed in the motor base (37), the adjusting screw (36) is rotatably installed on the annular bearing plate (34), part of the adjusting screw is in threaded connection with the threaded hole in the motor base (37), the grinding motor (32) is installed on the motor base (37), the two limiting nuts (39) are in threaded connection with the adjusting screw (36) and located on two sides of the motor base (37), and the adjusting turntable (38) is fixedly installed at one end of the adjusting screw (36).
6. The jet mill device for grinding powders according to claim 5, wherein the classification mechanism (105) comprises an annular classification base (40), an annular classification block (41), a hopper-shaped screening cover (42), an annular classification cover (43), a classification exhaust fan (44), a classification pipe (45), a third chain wheel, a fourth chain wheel (46), a second chain (47) and a classification motor (48);
the one end intercommunication of annular grading seat (40) is in on cover (6), the one end rotation of the hierarchical piece of annular (41) is installed the other end of the hierarchical seat of annular (40), the one end rotation of the hierarchical lid of annular (43) is installed the other end of the hierarchical piece of annular (41), the hierarchical lid of annular (43) is in through a plurality of branch fixed mounting the other end of the hierarchical lid of annular (43) and the one end intercommunication of hierarchical pipe (45) on cover (6), the other end of hierarchical pipe (45) passes through ring flange (9) and can dismantle the intercommunication between spiral air-supply line (10), hierarchical exhaust fan (44) is installed the inside of the hierarchical lid of annular (43), fill type screening cover (42) fixed mounting be in the hierarchical piece of annular (41) to the part is located the inside of bung and the hierarchical seat of annular (40), four sprocket (46) fixed mounting are on the lateral wall of the hierarchical piece of annular (41), hierarchical motor (48) is installed through the frame one side of grinding cylinder (5), the one end connection of hierarchical motor (48) is in with the transmission chain wheel (47) between three sprocket (47) and four sprocket (46).
7. The jet mill device for grinding powders according to claim 6, characterized in that a gear box (49) for shielding the large bevel gear (18) and the small bevel gear (19) is installed on the grinding bed plate (1).
8. The jet mill device for grinding powder according to claim 7, wherein the grinding cylinder (5) is communicated with a feeding pipe (50), and a pipe cover (51) is arranged on the feeding pipe (50).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211072258.3A CN115283089A (en) | 2022-09-02 | 2022-09-02 | Jet mill device for grinding powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211072258.3A CN115283089A (en) | 2022-09-02 | 2022-09-02 | Jet mill device for grinding powder |
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| CN202211072258.3A Pending CN115283089A (en) | 2022-09-02 | 2022-09-02 | Jet mill device for grinding powder |
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