CN112191331A - Vertical mill with increase-volume and increase-efficiency structure - Google Patents

Vertical mill with increase-volume and increase-efficiency structure Download PDF

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Publication number
CN112191331A
CN112191331A CN202011120551.3A CN202011120551A CN112191331A CN 112191331 A CN112191331 A CN 112191331A CN 202011120551 A CN202011120551 A CN 202011120551A CN 112191331 A CN112191331 A CN 112191331A
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CN
China
Prior art keywords
shell
grinding
vertical mill
supporting plate
coal
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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.)
Pending
Application number
CN202011120551.3A
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Chinese (zh)
Inventor
吕兆厂
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Shanghai Qianmiao Industrial Technology Co ltd
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Shanghai Qianmiao Industrial Technology Co ltd
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Application filed by Shanghai Qianmiao Industrial Technology Co ltd filed Critical Shanghai Qianmiao Industrial Technology Co ltd
Priority to CN202011120551.3A priority Critical patent/CN112191331A/en
Publication of CN112191331A publication Critical patent/CN112191331A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/007Mills with rollers pressed against a rotary horizontal disc
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/003Shape or construction of discs or rings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/004Shape or construction of rollers or balls

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

Abstract

The invention discloses a vertical mill with a capacity-increasing and efficiency-increasing structure, which comprises a first shell, wherein a first supporting plate is arranged below the first shell, a second supporting plate is arranged on the outer side of the first shell, a motor is arranged above the second supporting plate, a transmission shaft is arranged at the output end of the motor, a reduction box is arranged at the right end of the transmission shaft, a bowl grinding hub is arranged above the reduction box, a first groove is arranged above the bowl grinding hub, and a third supporting plate is arranged on the outer side above the bowl grinding hub. This vertical mill with increase-volume increase-efficiency structure through the radius that increases the grinding roller, and then increased the equipment and the area of raw coal contact when normal operating, can grind more raw coal to reach the purpose that improves equipment work efficiency.

Description

Vertical mill with increase-volume and increase-efficiency structure
Technical Field
The invention relates to the technical field of coal correlation, in particular to a vertical mill with a capacity-increasing and efficiency-increasing structure.
Background
A vertical mill is a device for grinding coal, and the main purpose of the vertical mill is to grind the coal to a very fine degree so as to facilitate the subsequent processing of the coal.
When the existing vertical mill mills coal, the milling efficiency of raw coal is not high, and the drying degree after milling cannot mark.
Disclosure of Invention
The invention aims to provide a vertical mill with a capacity-increasing and efficiency-increasing structure, which aims to solve the problems that the grinding efficiency of raw coal is not high and the drying degree after grinding cannot mark when the conventional vertical mill proposed in the background art is used for grinding coal.
In order to achieve the purpose, the invention provides the following technical scheme: a vertical mill with a capacity-increasing and efficiency-increasing structure comprises a first shell, wherein a first supporting plate is installed below the first shell, a second supporting plate is installed on the outer side of the first shell, a motor is installed above the second supporting plate, a transmission shaft is installed at the output end of the motor, a reduction box is installed at the right end of the transmission shaft, a bowl grinding hub is installed above the reduction box, a first groove is formed above the bowl grinding hub, a third supporting plate is installed on the outer side above the bowl grinding hub, a second groove is formed in the outer side of the third supporting plate, a second shell is installed above the first shell, a coal dropping pipe is installed in the middle of the upper portion of the second shell, discharge ports are installed on two sides of the coal dropping pipe, an inner cone is installed inside the second shell, a loading device is installed on the outer side of the second shell, and a grinding roller is installed below the loading device, an impeller is installed below the second shell, and a primary air port device is installed below the impeller.
Preferably, the transmission shaft is connected with the first housing in a bearing connection mode, and the central axis of the first housing is collinear with the central axis of the second housing.
Preferably, the grinding bowl hub is connected with the primary air port device through a bearing, and the primary air port device is annular in appearance.
Preferably, the third support plate is connected with the grinding bowl hub in a welding mode, and the outer side surface of the left end of the third support plate is tightly attached to the inner surface of the second groove.
Preferably, the coal dropping pipe is fixedly connected with the second shell, and the discharge holes are distributed on two sides of the coal dropping pipe at equal intervals.
Preferably, the grinding roller is inclined at an angle of 60 ° and the outer side surface of the grinding roller is in close engagement with the outer side surface of the first recess.
Compared with the prior art, the invention has the beneficial effects that: according to the vertical mill with the capacity-increasing and efficiency-increasing structure, the radius of the grinding roller is increased, so that the contact area of the equipment and raw coal during normal operation is increased, more raw coal can be ground, and the aim of improving the working efficiency of the equipment is fulfilled;
when the radius at the grinding roller increases for when the grinding bowl hub increases, make the area of impeller diminish, and then make the velocity of flow of coal uprise, so that the raw materials can not drop easily, thereby reach the utilization ratio that improves the raw materials.
Drawings
FIG. 1 is a schematic main sectional view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is a schematic top view of a second housing according to the present invention;
fig. 4 is a schematic top view of the grinding bowl hub according to the present invention.
In the figure, 1, a first shell; 2. a first support plate; 3. a second support plate; 4. a motor; 5. a drive shaft; 6. a reduction gearbox; 7. grinding a bowl hub; 8. a first groove; 10. a third support plate; 9. a second groove; 11. a second housing; 12. a coal dropping pipe; 13. a discharge port; 14. an inner cone; 15. a loading device; 16. grinding the roller; 17. an impeller; 18. a primary tuyere device.
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. 1-4, the present invention provides a technical solution: a vertical mill with a capacity-increasing and efficiency-increasing structure comprises a first shell 1, a first supporting plate 2 is arranged below the first shell 1, a second supporting plate 3 is arranged on the outer side of the first shell 1, a motor 4 is arranged above the second supporting plate 3, a transmission shaft 5 is arranged at the output end of the motor 4, a reduction box 6 is arranged at the right end of the transmission shaft 5, a bowl grinding hub 7 is arranged above the reduction box 6, a first groove 8 is arranged above the bowl grinding hub 7, a third supporting plate 10 is arranged on the outer side above the bowl grinding hub 7, a second groove 9 is arranged on the outer side of the third supporting plate 10, a second shell 11 is arranged above the first shell 1, a coal dropping pipe 12 is arranged in the middle of the upper part of the second shell 11, discharge ports 13 are arranged on two sides of the coal dropping pipe 12, an inner cone 14 is arranged inside the second shell 11, and a loading device 15 is arranged on the outer side of the second, and a grinding roller 16 is installed below the loading device 15, an impeller 17 is installed below the second housing 11, and a primary tuyere device 18 is installed below the impeller 17.
The mode of connection of transmission shaft 5 and first shell 1 is the bearing connection, and the central axis of first shell 1 and the central axis collineation of second shell 11 for the focus of whole equipment is more stable on same one line, can not take place to rock.
The bowl grinding hub 7 is connected with the primary air port device 18 through a bearing, and the primary air port device 18 is annular in appearance, so that the bowl grinding hub 7 cannot drive the primary air port device 18 to rotate when rotating.
The third backup pad 10 is the welding with the connected mode of grinding bowl hub 7, and the left end outside surface of third backup pad 10 closely laminates with the inside surface of second recess 9 for grind bowl hub 7 more stable can not take place to rock when rotating.
The coal dropping pipe 12 is fixedly connected with the second shell 11, and the discharge ports 13 are equidistantly distributed on two sides of the coal dropping pipe 12, so that the coal dropping pipe 12 cannot shake.
The grinding roller 16 is inclined at an angle of 60 deg., and the outer side surface of the grinding roller 16 is in close engagement with the outer side surface of the first groove 8, so that the grinding roller 16 can better grind the raw coal.
The working principle is as follows: when the vertical mill with the capacity-increasing and efficiency-increasing structure is used, raw coal is poured into the coal dropping pipe 12 and falls on the upper portion of the milling bowl hub 7 to slide into the first groove 8, the starting motor 4 drives the transmission shaft 5 to rotate, the reduction box 6 is driven to rotate, the milling bowl hub 7 is driven to rotate, the raw coal in the first groove 8 moves to the lower portion of the milling roller 16 to be milled, the width of the milling roller 16 is changed, the radius of the milling roller 16 is set to be R, the increased circumferential area is DeltaS ≈ 2 XXRXX H, the percentage of the contact area of the equipment and the raw materials in the whole circumferential effective area of the milling roller is eta when the equipment normally operates, the increase value of the effective area in contact with the raw coal is DeltaS' ≈ DeltaS ≈ 2 × R × DeltaH ^ and the increase value of the diameter of the milling disc is DeltaD, < DeltaH/sin alpha, the H value of grinding roller 16 increases simultaneously, the mill diameter also correspondingly increases, mill the area and also correspondingly increase promptly, with this while L value is reducing, L-delta L is L-delta D/2 is L-delta H/(2 x sin alpha), the L value reduces, mill nozzle department through-flow area diminishes, the velocity of flow improves, the raw materials is difficult for dropping, effectively improve the utilization ratio of raw materials, also satisfied energy-concerving and environment-protective requirement and increased the area of contact of grinding roller 16 with raw coal, make grinding roller 16 can mill more raw coal, thereby reach the purpose that improves equipment work efficiency.
When the ground raw coal needs to be discharged, the primary tuyere device 18 and the impeller 17 are started to blow up the coal in the first groove 8, and the collected coal is discharged from the discharge hole; 13 is discharged, when the diameter of the grinding roller 16 is increased, the diameter of the impeller 17 is reduced, so that the raw materials cannot easily fall off, and the utilization rate of the raw materials is improved.
It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the present invention.
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 (7)

1. A vertical mill with a compatibilization-enhancing structure, comprising a first shell (1), characterized in that: a first supporting plate (2) is installed below the first shell (1), a second supporting plate (3) is installed on the outer side of the first shell (1), a motor (4) is installed above the second supporting plate (3), a transmission shaft (5) is installed at the output end of the motor (4), a reduction box (6) is installed at the right end of the transmission shaft (5), a bowl grinding hub (7) is installed above the reduction box (6), a first groove (8) is formed above the bowl grinding hub (7), a third supporting plate (10) is installed on the outer side above the bowl grinding hub (7), a second groove (9) is formed on the outer side of the third supporting plate (10), a second shell (11) is installed above the first shell (1), a coal dropping pipe (12) is installed in the middle of the upper portion of the second shell (11), discharge ports (13) are installed on two sides of the coal dropping pipe (12), the grinding device is characterized in that an inner cone (14) is installed inside the second shell (11), a loading device (15) is installed on the outer side of the second shell (11), a grinding roller (16) is installed below the loading device (15), an impeller (17) is installed below the second shell (11), and a primary air opening device (18) is installed below the impeller (17).
2. A vertical mill with compatibilization-enhancing structure according to claim 1, wherein: the transmission shaft (5) is connected with the first shell (1) in a bearing mode, and the central axis of the first shell (1) is collinear with the central axis of the second shell (11).
3. A vertical mill with compatibilization-enhancing structure according to claim 1, wherein: the grinding bowl hub (7) is connected with the primary air port device (18) in a bearing mode, and the primary air port device (18) is annular in appearance shape.
4. A vertical mill with compatibilization-enhancing structure according to claim 1, wherein: the third supporting plate (10) and the bowl grinding hub (7) are connected in a welding mode, and the outer side surface of the left end of the third supporting plate (10) is tightly attached to the inner surface of the second groove (9).
5. A vertical mill with compatibilization-enhancing structure according to claim 1, wherein: the coal dropping pipe (12) is fixedly connected with the second shell (11), and the discharge holes (13) are equidistantly distributed on two sides of the coal dropping pipe (12).
6. A vertical mill with compatibilization-enhancing structure according to claim 1, wherein: the angle of inclination of the grinding roller (16) is 60 DEG and the outer side surface of the grinding roller (16) is in tight engagement with the outer side surface of the first recess (8).
7. A vertical mill with compatibilization-enhancing structure according to claim 1, wherein: the working principle of the vertical mill is as follows: when the vertical mill with the capacity-increasing and efficiency-increasing structure is used, raw coal is poured into the coal dropping pipe (12) and falls above the milling bowl hub (7) and slides into the first groove (8), the starting motor (4) drives the transmission shaft (5) to rotate and drives the reduction box (6) to rotate and drive the milling bowl hub (7) to rotate, so that the raw coal in the first groove (8) moves to the lower part of the milling roller (16) to be milled, the width of the milling roller (16) is changed, the requirement of energy conservation and environmental protection is met, the contact area between the milling roller (16) and the raw coal is increased, the milling roller (16) can mill more raw coal, and the purpose of improving the working efficiency of equipment is achieved;
when the ground raw coal needs to be discharged, the primary tuyere device (18) and the impeller (17) are started to blow up the coal in the first groove (8), the collected coal is discharged from the discharge hole (13), and when the diameter of the grinding roller (16) is increased, the diameter of the impeller (17) is reduced, so that the raw material cannot easily fall off.
CN202011120551.3A 2020-10-19 2020-10-19 Vertical mill with increase-volume and increase-efficiency structure Pending CN112191331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011120551.3A CN112191331A (en) 2020-10-19 2020-10-19 Vertical mill with increase-volume and increase-efficiency structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011120551.3A CN112191331A (en) 2020-10-19 2020-10-19 Vertical mill with increase-volume and increase-efficiency structure

Publications (1)

Publication Number Publication Date
CN112191331A true CN112191331A (en) 2021-01-08

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CN202011120551.3A Pending CN112191331A (en) 2020-10-19 2020-10-19 Vertical mill with increase-volume and increase-efficiency structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114308267A (en) * 2021-12-13 2022-04-12 安徽华塑股份有限公司 Treatment device for carbide slag vegetation high-efficiency desulfurizer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2345280Y (en) * 1998-01-05 1999-10-27 王云 Vertical middle disintegrating mill
CN1986065A (en) * 2005-12-22 2007-06-27 上海重型机器厂有限公司 Bowl-type medium speed coal mill
CN101125306A (en) * 2007-10-09 2008-02-20 辽宁重机设备技术有限公司 Roller type medium speed mill
CN202942931U (en) * 2012-11-06 2013-05-22 北京电力设备总厂 Coal mill and grinding mechanism thereof
CN105854992A (en) * 2016-04-05 2016-08-17 申士富 Wet method roller type disintegrating mill and grading closed-circuit process thereof
US20160367997A1 (en) * 2015-06-16 2016-12-22 Arvos Inc. Vertical bowl mill for producing coarse ground particles
CN106890705A (en) * 2017-04-18 2017-06-27 长春发电设备总厂 A kind of medium-speed pulverizer
CN111686884A (en) * 2020-06-19 2020-09-22 上海卡山科技股份有限公司 Coal pulverizer with wind powder homogenization function

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2345280Y (en) * 1998-01-05 1999-10-27 王云 Vertical middle disintegrating mill
CN1986065A (en) * 2005-12-22 2007-06-27 上海重型机器厂有限公司 Bowl-type medium speed coal mill
CN101125306A (en) * 2007-10-09 2008-02-20 辽宁重机设备技术有限公司 Roller type medium speed mill
CN202942931U (en) * 2012-11-06 2013-05-22 北京电力设备总厂 Coal mill and grinding mechanism thereof
US20160367997A1 (en) * 2015-06-16 2016-12-22 Arvos Inc. Vertical bowl mill for producing coarse ground particles
CN105854992A (en) * 2016-04-05 2016-08-17 申士富 Wet method roller type disintegrating mill and grading closed-circuit process thereof
CN106890705A (en) * 2017-04-18 2017-06-27 长春发电设备总厂 A kind of medium-speed pulverizer
CN111686884A (en) * 2020-06-19 2020-09-22 上海卡山科技股份有限公司 Coal pulverizer with wind powder homogenization function

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李国新等: "《ZGM113N型磨煤机增加出力改造及应用》", 《中国电力教育》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114308267A (en) * 2021-12-13 2022-04-12 安徽华塑股份有限公司 Treatment device for carbide slag vegetation high-efficiency desulfurizer

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Application publication date: 20210108