CN110328018B - Novel structure of mill main machine - Google Patents
Novel structure of mill main machine Download PDFInfo
- Publication number
- CN110328018B CN110328018B CN201910732605.2A CN201910732605A CN110328018B CN 110328018 B CN110328018 B CN 110328018B CN 201910732605 A CN201910732605 A CN 201910732605A CN 110328018 B CN110328018 B CN 110328018B
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- CN
- China
- Prior art keywords
- cover
- frame
- grinding
- cylinder
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000227 grinding Methods 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 claims description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000003801 milling Methods 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B02C15/08—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a novel structure of a mill main machine, which comprises a base, a cover cylinder and a classifier, wherein a return air box is arranged on the base in a surrounding manner, and a ring plate is arranged on the top of the return air box; the cover cylinder comprises two semicircular cover bodies, the two semicircular cover bodies are connected with the locking mechanism I through a hinge mechanism, and the lower circular opening of the two semicircular cover bodies is sleeved on the annular plate and is hooped by the hoop; the grader is supported and installed through a frame, and the lower opening of a housing of the grader is in butt joint with the upper circular openings of the two semicircular cover bodies and is axially fastened through a locking mechanism II arranged between the two circular openings; the side of the cover cylinder is provided with a portal frame which is arranged on the horizontal guide rails arranged on the machine frame at two sides of the cover cylinder in a rolling way, the span of the portal frame is larger than the cylinder diameter of the cover cylinder, and the height of the portal frame is lower than the lower opening of the cover shell of the classifier and higher than the grinding roller frame in the cover cylinder. The invention is easy to replace the grinding ring and overhaul the grinding roller assembly, can greatly shorten the overhaul operation process, reduce the downtime of the pulverizer and improve the production efficiency.
Description
Technical Field
The invention relates to an internal structure of a mill, in particular to a novel structure of a mill main machine.
Background
The mill is one of the most widely applied devices in the grinding equipment, and the working principle of the mill main machine is that the mill main machine rotates and rolls on the mill ring of the base by virtue of the centrifugal force generated by the mill rollers in the mill roller device in the revolution running process, and the materials (metal or nonmetal ores) are ground between the contact surfaces (grinding areas) of the mill rollers and the mill ring.
The grinding roller device is arranged in the cover cylinder and is arranged on the main shaft of the main machine through the grinding roller frame, the cover cylinder is arranged on the base, the grader is arranged on the cover cylinder, and the cover body of the cover cylinder is respectively provided with a feed inlet and an overhaul observation door.
An important maintenance project of the mill main machine is to maintain and maintain the mill roller device and other parts in the cover cylinder and replace the mill ring:
maintenance of the grinding roller device and other parts is carried out by an maintainer entering the cover cylinder through the maintenance observation door, and the maintenance is inconvenient due to the narrow working space in the cylinder, so that the maintenance time is prolonged.
The grinding ring is replaced by removing the parts such as the classifier, the cover cylinder, the grinding roller device and the like, so that the engineering quantity is large and the operation time is long.
In summary, the maintenance of the mill main machine is complex, tedious and labor intensity is high, which causes long shutdown time of the mill main machine and indirectly affects the production efficiency of the mill.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a novel structure of a mill main machine.
Can solve the mill host computer new-type structure of above-mentioned technical problem, its technical scheme includes base, cover section of thick bamboo and the grader that set up from bottom to top, be equipped with the grinding roller assembly of installing on the main shaft through grinding roller frame in the cover section of thick bamboo, the main shaft passes through the lower support to be installed in the seat hole bottom central authorities of base, the grinding ring is installed to the seat drill way of base, the grinding ring forms the mill district with the grinding roller of the last circumference equipartition of grinding roller assembly, what is:
1. the air inlets arranged on the air return box are communicated with the air inlets uniformly distributed on the side part of the base, and the top of the air return box is provided with a ring plate coaxial with the grinding ring.
2. The cover cylinder comprises two semicircular cover bodies which are symmetrical in the front, the back or the left and the right, one corresponding end of each of the two semicircular cover bodies is connected through a hinge mechanism, the other corresponding end of each of the two semicircular cover bodies is connected through a locking mechanism, and the lower circular opening of each of the two semicircular cover bodies is sleeved on the annular plate and hooped on the annular plate through the hoop.
3. The classifier is supported and installed through a frame, and the lower opening of a housing of the classifier is in butt joint with the circular openings on the two semicircular cover bodies and is axially fastened through locking mechanisms II which are uniformly distributed between the two circular openings.
4. The side of the cover cylinder is provided with a portal frame with a hoist crane, the portal frame is arranged on horizontal guide rails arranged on the machine frame at two sides of the cover cylinder in a rolling way, the span of the portal frame is larger than the cylinder diameter of the cover cylinder, and the height of the portal frame is lower than the lower opening of the cover of the classifier and higher than the grinding roller frame in the cover cylinder.
In the support mounting structure, the housing of the grader is clamped in a bayonet of a grader maintenance platform arranged on a frame, guard rails are arranged around the grader maintenance platform, and an inlet and an outlet of the guard rails are provided with an escalator arranged on the frame.
In order to realize quick assembly disassembly, the locking mechanism II preferably adopts a hook-and-loop type locking piece.
Conventionally, a feed inlet is formed in a semicircular cover body, and an observation door is arranged on the other semicircular cover body.
The invention has the beneficial effects that:
1. when the novel structure of the main machine of the mill is adopted to overhaul and maintain the grinding roller device, the semicircular cover body is opened to enable the grinding roller device and other parts in the cylinder to be in an open state, so that maintenance personnel can overhaul the grinding roller, bearings and other parts of the grinding roller device conveniently, and a larger space is provided compared with the traditional overhaul and maintenance operation in the cover cylinder.
2. The invention is easy to replace the grinding ring, and after the two semicircular cover bodies are separated and removed, the grinding roller device and the grinding ring are completely exposed, and the replacement of the grinding ring can be easily completed by means of the portal frame.
3. The invention adopts the split type cover body (front, back or two semicircular cover bodies which are symmetrical left and right) in the locking state to realize flexible connection with the air return box which is enclosed on the base, so that vibration of the pulverizer during working can not be basically transmitted to the cover cylinder, the stability of the installation of the cover cylinder is ensured, the safety performance is improved, and the service life is prolonged.
4. The invention can greatly shorten the maintenance operation process, reduce the shutdown time of the pulverizer and improve the production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a top view of the embodiment of fig. 1.
Fig. 3 is a side view of the embodiment of fig. 1.
Fig. 4 is a connection structure diagram of the hood and the return air box in the embodiment of fig. 1.
Fig. 5 is a structural view of the bellows in the embodiment.
Drawing number identification: 1. a cover cylinder; 1-1, a left semicircular cover body; 1-2, right semicircle housing; 2. a classifier; 3. a return air box; 3-1, a ring plate; 3-2, upper ring plate; 3-3, lower ring plate; 3-4, coaming; 3-5, ribs; 4. a seal ring; 5. a wind supplementing observation port; 6. a hoop; 7. a frame; 8. a locking mechanism II; 9. a portal frame; 10. a guide rail; 11. a grader maintenance platform; 12. a guard rail; 13. an escalator; 14. a hinge mechanism; 15. a locking mechanism I; 16. a base; 17. an air inlet; 18. the door is observed.
Detailed Description
The technical scheme of the invention is further described below with reference to the embodiment shown in the drawings.
The invention relates to a novel structure of a mill main machine, which comprises a base, an air return box 3, a cover cylinder 1 and a classifier 2, wherein the base is arranged on a base 16, the air return box 3 is arranged on the base 16 through a support, and is enclosed on the base so that tangential air inlets 17 on the air return box 3 are communicated with air inlets uniformly distributed on the circumference of the side part of the base, the air return box 3 comprises an upper ring flat plate 3-2, a lower ring flat plate 3-3 and a coaming plate 3-4, one side of the inner ring of the upper ring flat plate 3-2 is arranged on the top of the base (coaxial with a base hole of the base) through screws, the inner ring side of the lower ring flat plate 3-3 is arranged on a step at the bottom of the base (coaxial with a base seat hole) through screws, the coaming 3-4 is coaxially welded between one sides of outer rings of the upper ring flat plate 3-2 and the lower ring flat plate 3-3, air supplementing observation ports 5 which can be closed or opened are uniformly distributed on the circumference of the coaming 3-4, ribs 3-5 (avoiding the air supplementing observation ports 5) connected with the upper ring flat plate 3-2 and the lower ring flat plate 3-3 are uniformly distributed on the circumference of the outer side surface of the coaming 3-4, a coaxial ring plate 3-1 (vertically upwards) is arranged on the upper ring flat plate 3-2 (close to the inner ring), and the lower opening of the cover cylinder is downwards sleeved on the ring plate 3-1; the utility model discloses a classifier is characterized by including a cover section of thick bamboo 1, be equipped with the grinding roller assembly of installing on the main shaft through grinding roller frame in the cover section of thick bamboo 1, the main shaft passes through lower support (bearing mechanism) to be installed in the seat hole bottom central authorities of base, and the grinding ring is installed to the seat drill way of base, the grinding ring forms the milling district with the grinding roller of circumference equipartition on the grinding roller assembly, the housing card of classifier 2 is adorned in the bayonet socket of classifier maintenance platform 11, classifier maintenance platform 11 fixed mounting is in frame 7 (frame structure) top with shaped steel welding, is equipped with rail guard 12 around the classifier maintenance platform 11, the exit of rail guard 12 front side is equipped with the staircase 13 of installing on frame 7, the lower mouth of the housing of classifier 2 is docked with cover section of thick bamboo 1, frame 7 sets up on base 16, and the tetrahedron frame body of frame 7 is located (front side, rear side, left side and right side of base, return air box 3 and cover section of thick bamboo 1) mounting structure respectively, as shown in fig. 1, fig. 2, 3.
The cover cylinder 1 comprises a left semicircular cover body 1-1 and a rear semicircular cover body 1-2, left corresponding ends of the front semicircular cover body 1-1 and the rear semicircular cover body 1-2 are connected through a hinge mechanism 14, right corresponding ends of the front semicircular cover body 1-1 and the rear semicircular cover body 1-2 are connected through a locking mechanism I15, a feeding hole is formed in the center of the rear semicircular cover body 1-2, and an observation door 18 installed in a hinge structure is arranged in the center of the front semicircular cover body 1-1; the hinge mechanism 14 comprises a rotating shaft, the rotating shaft is arranged on the rear semicircular cover body through an upper shaft seat and a lower shaft seat at the left end of the rear semicircular cover body, the rotating shaft is connected with the front semicircular cover body 1 through an upper bolt and nut assembly, a middle bolt and nut assembly and the locking mechanism I15 comprises an upper triangular nut and bolt assembly, a middle triangular nut and a lower triangular nut and bolt assembly; under the locking state, the round mouth suit is on the annular plate 3-1 under the two semicircle cover body, round mouth department is equipped with two staple bolts 6 about two semicircle cover body down, thereby two staple bolts 6 are with the soft coupling between cover section of thick bamboo 1 and the base of hooping on annular plate 3-1 under the two semicircle cover body, be equipped with sealing washer 4 between the face of cup jointing of round mouth under the two semicircle cover body and annular plate 3-1, the coaxial butt joint of round mouth (ring flange) under the cover body and the cover shell of grader 2 (ring flange formula), the locking mechanism II 8 (hook formula retaining member) axial fastening that sets up by circumference equipartition between the two, as shown in fig. 1, fig. 3, fig. 4.
The middle cross beams of the front and rear frame bodies of the frame 7 are respectively provided with left and right guide rails 10, the two guide rails 10 are provided with a portal frame 9 in a rolling manner, the front and rear cross beams of the portal frame 9 are provided with hoist cranes, the span of the portal frame 9 is larger than the cylinder diameter of the cover cylinder 1, the height of the portal frame 9 is higher than the roller milling frame in the cover cylinder 1 and lower than the lower opening of the cover of the classifier 2, and the portal frame 9 can enter and leave the lower opening of the cover of the classifier 2 (namely, the upper part of the roller milling frame) under the condition of removing the cover cylinder 1, as shown in figures 1, 2 and 3.
When the mill main machine is in a grinding state, the front semicircular cover body 1-1 is closed and locked on the rear semicircular cover body 1-2, the front semicircular cover body 1 and the rear semicircular cover body 2 are arranged between the return air box 3 and the classifier 2, materials enter the cover cylinder 1 through the feed inlet and fall into a grinding area, the operation condition of the grinding roller device can be observed by opening the observation door 18, and gaps between the left opposite end and the right opposite end of the front semicircular cover body 1-1 and the rear semicircular cover body 1-2 are sealed by sealing strips respectively arranged to prevent dust from flying out of the cover cylinder 1.
When the grinding roller device is required to be maintained and overhauled, the locking of the hoop 6 and the locking mechanism I15 to the front semicircular cover body 1-1 is released when the mill main machine is in a stop state, and the front semicircular cover body 1-1 can be opened to directly face the grinding roller device for inspection and maintenance.
When the grinding ring is required to be replaced, the locking of the hoop 6 and the locking mechanism I15 on the front semicircular cover body 1-1 is released when the mill main machine is in a stop state, the front semicircular cover body 1-1 and the rear semicircular cover body 1-2 are removed, the portal frame 9 is pushed to the lower part of the lower opening of the cover shell of the classifier 2 (namely, the upper part of the grinding roller frame), and the grinding ring is lifted by utilizing a hoist, so that the replacement of the grinding ring can be completed.
Claims (2)
1. The utility model provides a mill host computer new-type structure, includes base, cover section of thick bamboo (1) and grader (2) that set up from bottom to top, be equipped with in cover section of thick bamboo (1) through grinding the roller frame and install in the epaxial grinding roller assembly of main shaft, the main shaft passes through the lower support and installs in the seat hole bottom central authorities of base, the grinding ring is installed to the seat drill way of base, the grinding ring forms the mill district with the grinding roller of the last circumference equipartition of grinding roller assembly, its characterized in that:
the air return box (3) is arranged on the base in a surrounding manner, so that air inlets (17) on the air return box (3) are communicated with air inlets uniformly distributed on the side part of the base, and a ring plate (3-1) coaxial with the grinding ring is arranged on the top of the air return box (3);
the cover cylinder (1) comprises two semicircular cover bodies which are symmetrical in front, back or left and right, one corresponding end of each semicircular cover body is connected through a hinge mechanism (14), the other corresponding end of each semicircular cover body is connected through a locking mechanism I (15), and the lower circular opening of each semicircular cover body is sleeved on the annular plate (3-1) and is hooped on the annular plate (3-1) through a hoop (6);
the classifier (2) is supported and installed through a frame (7), and the lower opening of a housing of the classifier (2) is in butt joint with the circular openings on the two semicircular cover bodies and is axially fastened through locking mechanisms II (8) uniformly distributed between the two circular openings;
the side of the cover cylinder (1) is provided with a portal frame (9) with a hoist, the portal frame (9) is arranged on horizontal guide rails (10) arranged on the frame (7) at two sides of the cover cylinder (1) in a rolling way, the span of the portal frame (9) is larger than the cylinder diameter of the cover cylinder (1), and the height of the portal frame (9) is lower than the lower opening of the cover of the classifier (2) and higher than a roller grinding frame in the cover cylinder (1);
the housing of the grader (2) is clamped in a bayonet of a grader maintenance platform (11) arranged on the frame (7), a guard rail (12) is arranged around the grader maintenance platform (11), and an inlet and an outlet of the guard rail (12) are provided with an escalator (13) arranged on the frame (7);
the locking mechanism II (8) is a hook-type locking piece.
2. The mill mainframe new construction of claim 1, wherein: a feed inlet (4) is arranged on the half round cover body, and an observation door (5) is arranged on the other half round cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910732605.2A CN110328018B (en) | 2019-08-09 | 2019-08-09 | Novel structure of mill main machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910732605.2A CN110328018B (en) | 2019-08-09 | 2019-08-09 | Novel structure of mill main machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110328018A CN110328018A (en) | 2019-10-15 |
| CN110328018B true CN110328018B (en) | 2024-02-20 |
Family
ID=68149142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910732605.2A Active CN110328018B (en) | 2019-08-09 | 2019-08-09 | Novel structure of mill main machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110328018B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1027934A1 (en) * | 1999-02-10 | 2000-08-16 | Santiago Dr. Calatrava Valls | Mill, especially tube mill |
| CN203202217U (en) * | 2013-04-28 | 2013-09-18 | 大唐安阳发电厂 | Inlet sealing device of desulfurization wet mill |
| CN206853813U (en) * | 2017-06-16 | 2018-01-09 | 谭开强 | New-type flour mill |
| CN209036284U (en) * | 2018-11-22 | 2019-06-28 | 威海叁星飞荣纳米科技有限公司 | Grinder rack |
| CN211099345U (en) * | 2019-08-09 | 2020-07-28 | 广西桂林航大重工机械有限公司 | Easy maintenance structure for mill main machine |
-
2019
- 2019-08-09 CN CN201910732605.2A patent/CN110328018B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1027934A1 (en) * | 1999-02-10 | 2000-08-16 | Santiago Dr. Calatrava Valls | Mill, especially tube mill |
| CN203202217U (en) * | 2013-04-28 | 2013-09-18 | 大唐安阳发电厂 | Inlet sealing device of desulfurization wet mill |
| CN206853813U (en) * | 2017-06-16 | 2018-01-09 | 谭开强 | New-type flour mill |
| CN209036284U (en) * | 2018-11-22 | 2019-06-28 | 威海叁星飞荣纳米科技有限公司 | Grinder rack |
| CN211099345U (en) * | 2019-08-09 | 2020-07-28 | 广西桂林航大重工机械有限公司 | Easy maintenance structure for mill main machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110328018A (en) | 2019-10-15 |
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