CN211359161U - Double-helix main shaft wear-resistant protection structure of mining vertical mill - Google Patents

Double-helix main shaft wear-resistant protection structure of mining vertical mill Download PDF

Info

Publication number
CN211359161U
CN211359161U CN201921833566.7U CN201921833566U CN211359161U CN 211359161 U CN211359161 U CN 211359161U CN 201921833566 U CN201921833566 U CN 201921833566U CN 211359161 U CN211359161 U CN 211359161U
Authority
CN
China
Prior art keywords
main shaft
vertical mill
wear
resistant
fixedly connected
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.)
Active
Application number
CN201921833566.7U
Other languages
Chinese (zh)
Inventor
徐兴旺
刘天林
张润身
贾英杰
魏庆新
张治国
薛强
戚力林
柳闯
石永轩
高岚岚
陈丽媛
许雁超
要智勇
潘杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Iron and Steel Group Mining Co Ltd
Original Assignee
Hebei Iron and Steel Group Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hebei Iron and Steel Group Mining Co Ltd filed Critical Hebei Iron and Steel Group Mining Co Ltd
Priority to CN201921833566.7U priority Critical patent/CN211359161U/en
Application granted granted Critical
Publication of CN211359161U publication Critical patent/CN211359161U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Crushing And Grinding (AREA)

Abstract

The double-helix main shaft wear-resistant protection structure of the mining vertical mill comprises two side protection sleeves of a wear main shaft of the vertical mill, a bottom tray, a wear-resistant medium, a strong magnetic block, glue, a fixing bolt, a helical blade and the main shaft of the vertical mill; the bottom tray is fixedly connected with the vertical mill main shaft; the helical blade is fixedly connected with a main shaft of the vertical mill; the strong magnetic block is fixedly connected with the abrasion part of the vertical mill main shaft through glue; the worn part at the spiral connection part of the spiral blade and the main shaft of the vertical mill is fixedly connected with a wear-resistant medium through glue; the two side protective sleeves are fixedly connected with the bottom tray; gaps between the two side protective sleeves and the abrasion part of the vertical mill main shaft are filled and connected through abrasion-resistant media; the upper wear parts of the two side protective sleeves are fixedly connected with the strong magnetic blocks through glue. The advantages are that: the main shaft of the vertical mill is effectively protected by the double wear-resistant protection structure, the main shaft is long in service life, the hidden danger of equipment is few, the manpower and material resources are low in consumption, the overhaul time is short, and the overhaul efficiency is high.

Description

Double-helix main shaft wear-resistant protection structure of mining vertical mill
The technical field is as follows:
the utility model relates to a vertical mill auxiliary assembly technical field of ore dressing especially relates to a wear-resisting protection architecture of two spiral main shafts of mining vertical mill.
Background art:
in the prior art, a vertical mill, also called a tower mill, is a high-efficiency and energy-saving fine grinding device, has the characteristics of high efficiency, energy conservation, environmental protection, simple operation, easy maintenance and the like, plays a key role in the fine grinding and regrinding processes of a dressing plant, and directly influences the grade of final iron ore concentrate. Along with the wearing and tearing of helical blade, the medium motion kinetic energy that is close to vertical mill main shaft position increases, because the wearing and tearing of material, erodees and corrodes and produce wearing and tearing to main shaft the latter half, and vertical mill main shaft is double helix structure, and both sides all produce the wearing and tearing of different degree of depth, continue to use and will have the risk of disconnected axle shut down. The vertical mill is imported equipment, the main shaft is made of complex materials, the main shaft is subjected to plastic deformation due to heating by direct welding, the concentricity of the main shaft and the coupler is damaged, and the main shaft jumps when rotating to cause equipment damage; the coating of the common wear-resistant coating only can reduce the wear speed, can not effectively prevent wear and has short service cycle; the hidden danger of use can be eliminated through the main shaft of changing wearing and tearing, and the working property of recovery equipment, nevertheless just so need purchase the main shaft again, the purchase cycle is long, and equipment dismouting volume is big, need consume a large amount of manpower and materials, and the maintenance period is long, influences the mine production.
The utility model has the following contents:
the utility model discloses the purpose is overcome the not enough of above-mentioned prior art existence, provides one kind and can effectual protection main shaft, improves main shaft life, eliminates the equipment hidden danger, guarantees normal production, shortens the maintenance activity time simultaneously, improves maintenance efficiency, reduces maintenance work load, reduces the mining vertical mill double helix main shaft wear-resisting protection architecture of cost of overhaul.
The utility model discloses a solve the technical scheme that its problem adopted and be: the double-helix main shaft wear-resistant protection structure of the mining vertical mill comprises two side protection sleeves of a wear main shaft of the vertical mill, a bottom tray, a wear-resistant medium, a strong magnetic block, glue, a fixing bolt, a helical blade and the main shaft of the vertical mill; the bottom tray is positioned at the bottom of the vertical mill main shaft and is fixedly connected with the vertical mill main shaft through a fixing bolt; the helical blade is fixedly connected to the main shaft of the vertical mill; the strong magnetic block is fixedly connected with the abrasion part of the vertical mill main shaft through glue; the worn part at the spiral connection part of the spiral blade and the main shaft of the vertical mill is fixedly connected with a wear-resistant medium through glue; the two side protective sleeves are fixedly connected with the bottom tray; gaps between the two side protective sleeves and the abrasion part of the vertical mill main shaft are filled and connected through abrasion-resistant media; the upper wear parts of the two side protective sleeves are connected with the strong magnetic blocks through glue; the periphery of the strong magnetic repairing layer forming the magnetic protection layer is in arc transition connection. It is also characterized in that: the lower part is a rigid protection structure; the upper part is a strong magnetic protection structure. The strong magnetic magnet block is made of rare earth permanent magnetic material of a high-strength magnet; the wear-resistant medium is a mixed wear-resistant coating of two-in-one small particles of the DuPont 1201. The two side protective sleeves are welded with the bottom tray; two side protective sheaths cut and manufactured according to the spiral structure of the main shaft adopt DN500 material steel pipes, and the height of 2 side protective sheaths is 650 mm.
The utility model has the advantages that: because the bottom tray, the protective sleeve and the wear-resistant medium are utilized to form a rigid wear-resistant protective structure of the main shaft at the lower part, the magnetic protective structure is formed at the upper part by utilizing the adsorption effect of the strong magnetic block, a material protective layer is formed on the surface of the main shaft, the direct friction between the medium and the main shaft body in the motion process is avoided, the double wear-resistant protective structure can effectively protect the main shaft of the vertical mill, the service life of the main shaft is prolonged, the hidden danger of equipment is eliminated, the consumption of manpower and material resources is greatly reduced, the maintenance time is shortened, and the maintenance efficiency.
Description of the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is an enlarged view of a portion I of fig. 1.
In the drawings: 1. two side protective sleeves; 2. a bottom tray; 3. an abrasion resistant medium; 4. a ferromagnetic block; 5. glue; 6. fixing the bolt; 7. a helical blade; 8. a main shaft of the vertical mill; 9. a wear area.
The specific implementation mode is as follows:
the embodiments of the present invention will be described in further detail with reference to the accompanying drawings: the utility model provides a mining vertical mill double helix main shaft wear-resisting protection architecture, as shown in fig. 1~ 3: the double-spiral-blade vertical mill spindle comprises two side protective sleeves 1 of a double-spiral spindle of a vertical mill, a bottom tray 2, a wear-resistant medium 3, a strong magnetic block 4, glue 5, a fixing bolt 6, a spiral blade 7 and a vertical mill spindle 8. The helical blade 7 is fixedly connected with a main shaft 8 of the vertical mill; the two side protective sleeves 1 are welded with the bottom tray 2; gaps between the protective sleeves 1 on the two sides and the worn vertical mill main shaft 8 are connected by glue 5 after the wear-resistant medium 3 is filled; the worn parts on the upper parts of the two side protective sleeves 1 are fixedly connected with the strong magnetic blocks 4 in an embedding and bonding mode through glue 5; the wear-resistant medium 3 is connected with the peripheral repairing layer of the strong magnetic block 4 in a laying manner; the vertical mill main shaft 8 is connected with the bottom tray 2 through a fixing bolt 6; the utility model discloses a theory of operation is: when the double-helix main shaft 8 of the vertical mill is used, if the two sides of the main shaft are abraded and the parts of the abrasion area 9 are continuously deepened and enlarged, the abrasion can be continuously increased when the double-helix main shaft is continuously used until the risk of shaft breakage and production stop exists. Firstly, washing the residual ore pulp on the double-helix main shaft 8 of the vertical mill, and polishing the surfaces of the abrasion areas 9 on the two sides of the main shaft for visible light. The tray 2 with the worn bottom of the main shaft 8 is detached, a new tray is replaced and fixed by the fixing bolt 6, the thickness of the tray at the bottom is formed by cutting a manganese steel plate with the thickness of 50mm, and the diameter of the tray is phi 550 mm. Weld both sides protective sheath 1 on the tray of bottom, both sides protective sheath is formed for cutting according to main shaft helical structure with DN500 steel pipe, and the protective sheath height is 650mm, totally 2, fills up the space between the vertical mill main shaft 8 of both sides protective sheath 1 and wearing and tearing with wear-resisting medium 3, forms the wear-resisting protective structure in lower part. Secondly, the strong magnetic blocks 4 are embedded into the abrasion parts on the upper parts of the protective sleeves 1 on the two sides and fixed by glue 5, the strong magnetic blocks are embedded according to the abrasion depth of the abrasion parts to form a strong magnetic protection structure, the peripheries of the repair layers of the strong magnetic blocks 4 are laid by wear-resistant media 3, the peripheries of the repair layers are ensured to be in arc transition, the impact resistance is reduced, and the impact on the peripheries of the strong magnetic structures is avoided when the main shaft works. And finally, baking the surface of the lower wear-resistant protection structure by using a heating device to accelerate the solidification of the wear-resistant medium 3, so that the lower wear-resistant protection structure is firmer. The heating device can generally adopt a lamp baking mode. The environment temperature for curing the wear-resistant repairing agent is guaranteed to be 20-25 ℃ through a lamp baking mode, the problem that curing is difficult due to too low temperature is avoided, the maintenance time is long, and the curing effect is influenced is avoided, because the environment temperature is low in winter, after the vertical mill access door is closed, the vertical mill access door is baked by using a heating device for 16-24 hours generally, the environment temperature is high in summer, the vertical mill access door can be baked under the condition that the access door is not closed, and the baking time is 10-16 hours generally. Because the high-strength magnetic conductive adhesive has good viscosity, the protective sleeve is further fixed, the sliding of the protective sleeve is prevented, and the water caltrops at the periphery of the high-strength magnetic material are repaired, so that the impact resistance is reduced; and baking the surfaces of the protective structures after repairing the two sides by using a heating device to accelerate the curing of the wear-resistant medium 3, thereby completing the repairing work. The strong magnet block is a rare earth permanent magnet material of a high-strength magnet, the specification of the magnet block is 30 multiplied by 20 multiplied by 10, the magnetic field intensity is 600 millitex, and the wear-resistant medium is a mixed wear-resistant coating of two-in-one small particles of Dupont 1201.

Claims (4)

1. A double-helix main shaft wear-resistant protection structure of a mining vertical mill is characterized by comprising two side protection sleeves (1) of a vertical mill wear main shaft, a bottom tray (2), a wear-resistant medium (3), a strong magnetic block (4), glue (5), a fixing bolt (6), a helical blade (7) and a vertical mill main shaft (8); the bottom tray (2) is positioned at the bottom of the vertical mill main shaft (8) and is fixedly connected with the vertical mill main shaft (8) through a fixing bolt (6); the helical blade (7) is fixedly connected to a main shaft (8) of the vertical mill; the strong magnetic block (4) is fixedly connected with the worn part of the vertical mill main shaft (8) through glue (5); the abrasion part at the spiral connection part of the spiral blade (7) and the vertical mill main shaft (8) is fixedly connected with the wear-resistant medium (3) through glue (5); the two side protective sleeves (1) are fixedly connected with the bottom tray (2); gaps between the protective sleeves (1) on the two sides and the abrasion part of the vertical mill main shaft (8) are filled and connected through abrasion-resistant media (3); the upper abrasion parts of the two side protective sleeves (1) are connected with the strong magnetic blocks (4) through glue (5); the periphery of the strong magnetic repairing layer forming the magnetic protection layer is in arc transition connection.
2. The double-helix main shaft wear-resistant protection structure of the mining vertical mill according to claim 1, characterized in that: the lower part is a rigid protection structure; the upper part is a strong magnetic protection structure.
3. The double-helix main shaft wear-resistant protection structure of the mining vertical mill according to claim 1, characterized in that: the strong magnetic magnet block is made of rare earth permanent magnetic material of a high-strength magnet; the wear-resistant medium is a mixed wear-resistant coating of two-in-one small particles of the DuPont 1201.
4. The double-helix main shaft wear-resistant protection structure of the mining vertical mill according to claim 1, characterized in that: the two side protective sleeves (1) are welded with the bottom tray (2); two side protective sleeves (1) cut and manufactured according to the spiral structure of the main shaft adopt DN500 material steel pipes, and the height of 2 side protective sleeves (1) is 650 mm.
CN201921833566.7U 2019-10-29 2019-10-29 Double-helix main shaft wear-resistant protection structure of mining vertical mill Active CN211359161U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921833566.7U CN211359161U (en) 2019-10-29 2019-10-29 Double-helix main shaft wear-resistant protection structure of mining vertical mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921833566.7U CN211359161U (en) 2019-10-29 2019-10-29 Double-helix main shaft wear-resistant protection structure of mining vertical mill

Publications (1)

Publication Number Publication Date
CN211359161U true CN211359161U (en) 2020-08-28

Family

ID=72162696

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921833566.7U Active CN211359161U (en) 2019-10-29 2019-10-29 Double-helix main shaft wear-resistant protection structure of mining vertical mill

Country Status (1)

Country Link
CN (1) CN211359161U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114367361A (en) * 2021-12-21 2022-04-19 洛阳矿山机械工程设计研究院有限责任公司 Bottom protection device for protecting spiral stirrer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114367361A (en) * 2021-12-21 2022-04-19 洛阳矿山机械工程设计研究院有限责任公司 Bottom protection device for protecting spiral stirrer

Similar Documents

Publication Publication Date Title
CN211359161U (en) Double-helix main shaft wear-resistant protection structure of mining vertical mill
CN207297015U (en) A kind of push-bench breaker with second-time breakage
CN104043502B (en) The overlaying-type roller shell of Raymond bowl mill and the segmentation overlaying method of roller shell overlay cladding thereof
CN103203266B (en) Composite stepped wear-resistant lining plate
CN110814635A (en) Method for repairing wear of sliding shoe of ball mill
CN204530407U (en) Device is dug in a kind of milling
CN107654106B (en) Electric power pylon column foot replacing options
CN207839124U (en) A kind of multi-layer braided filling reparation structure of end cover of ball mill
CN105697482A (en) Anti-sliding connection method for high-strength bolt of stainless steel structure
CN208131171U (en) A kind of ball mill barrel interior lining panel
CN103008966B (en) Repairing method of scrapped mud pump cylinder sleeve
CN103801431A (en) Medium-speed vertical mill for milling petroleum coke
CN102787549B (en) Method for mending longitudinal/transverse single cracks of asphalt concrete pavement
CN112846639B (en) Method for repairing broken millstone steel tile lining plate of medium-speed coal mill
CN221693822U (en) Main shaft protection device of vertical mill
CN202460715U (en) Grinding roller for intermediate-speed mill
CN209189338U (en) A kind of tire protection chain production line cleaning device
CN205711950U (en) A kind of kidney-shaped shovel device for removing snow
CN205925879U (en) Cosine curve shape wave form steel tile
CN202129126U (en) Lining board of ball grinder
CN105523397B (en) A kind of application method of hydraulic screw formula cabin bottom clearing machine
CN213557452U (en) Split type welt of wet ball mill
CN220277161U (en) Wear-resistant lining plate structure for middle-speed coal mill middle frame body
CN114832916B (en) Magnetic lining plate for large ball mill
CN105316994A (en) Milling and digging device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant