CN111468243B - Hoisting method of vertical mill cone - Google Patents
Hoisting method of vertical mill cone Download PDFInfo
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- CN111468243B CN111468243B CN202010263652.XA CN202010263652A CN111468243B CN 111468243 B CN111468243 B CN 111468243B CN 202010263652 A CN202010263652 A CN 202010263652A CN 111468243 B CN111468243 B CN 111468243B
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- grinding disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/14—Edge runners, e.g. Chile mills
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
A method for hoisting a cone of a vertical mill comprises the steps of installing a mill shell, a motor, a speed reducer and a grinding disc in a built concrete foundation pit of the vertical mill, manufacturing a cone squatting frame, placing the cone squatting frame in the center of the grinding disc, arranging a jack on one side of the cone squatting frame, enabling a top rod of the jack to be abutted against the upper edge of the cone squatting frame, selecting a proper crane to hoist the whole cone on the cone squatting frame, reinforcing the cone around the middle part and the lower part of the cone through an upper supporting rod and a lower supporting rod, arranging two chain blocks back to the lower opening of the cone, adjusting the center line and the verticality of the cone through the jack and the chain blocks, and finally fixing the cone on the mill shell through the cone frame to finish hoisting the cone. The invention can conveniently and accurately mount the cone in place, does not occupy long working time of a crane, is not influenced by weather during hoisting, and overcomes the problem that the cone is not convenient to mount and adjust due to narrow space in the shell of the mill.
Description
Technical Field
The invention relates to a hoisting method of large cement production equipment, in particular to a hoisting method of a vertical mill cone, and belongs to the technical field of hoisting construction of cement production equipment.
Background
The vertical mill is a grinding device integrating crushing, drying, grinding, grading and conveying of materials, is widely used for grinding and processing of brittle materials such as stone, raw coal, slag, stone powder, clinker and the like, and is one of key devices of cement production enterprises.
The vertical mill mainly comprises a fine crushing system, a grinding processing system, a drying system, a powder collecting and conveying system, a dust removing system and the like, wherein a grinding disc is driven to rotate rapidly through a speed reducer, materials are ground and ground together with a grinding roller, and after the materials are ground, finished products of the materials are screened through a powder concentrator.
As shown in fig. 1, the structure of the vertical mill in the prior art is schematically illustrated:
the prior art vertical mill 100 mainly comprises: the grinding mill comprises a mill shell 10 and a powder concentrator shell 20, wherein the powder concentrator shell 20 is installed on the mill shell 10, a motor and a speed reducer 11 are installed at the bottom of the mill shell 10, a grinding disc 12 and a grinding roller 13 are installed at the upper portion of the mill shell 10, a cone 21 is arranged at the bottom of the powder concentrator shell 20, the cone 21 is installed on the mill shell 10 above the grinding disc 12 through a cone support 33, and a rotor 23, a powder concentrator motor 24 and the like are installed at the upper portion of the cone 21.
After the materials are ground, airflow enters the interior of the mill, powdery materials are conveyed into the material pipe through a pipeline to be screened, in the process, firstly, the airflow enters the vertical mill from the air pipe, then, a cone in the shell of the powder concentrator is used as a flow guide body to guide the airflow carrying the powder to uniformly enter a grading chamber to form vortex air, and finally, the airflow carrying the powder enters an air outlet pipe to be discharged out of a required powdery product under the action of adjusting blades and a horizontal lining plate.
In some modern large cement manufacturing enterprises, the vertical mill as a raw mill is very large, with a cone of up to 5.3m and a weight of 22 tons, and a distance of 1.2m between the bottom of the cone and the grinding disc.
However, such heavy, bulky components do not have reliable, stable support points on the mill housing as resting supports, nor are there any stationary resting supports in the mill housing and on the grinding discs, prior to formal installation in place.
In the prior art, the cone of a large vertical mill used in enterprises such as cement plants is generally installed by an insertion suspension installation method, i.e., before the casing of a powder concentrator is installed, a large crane is used to suspend the cone on a millstone, then the grinding roller, the casing of the powder concentrator and the like are installed, then the cone is installed and fixed on the installed casing of the powder concentrator, and finally, the installation of the whole vertical mill is completed.
In the process, not only a large-tonnage crane is required to suspend the cone, but also various methods are required to ensure that the cone is not shaken and is kept stable, otherwise, the progress and the precision of cone installation are seriously influenced.
Obviously, the cone is hoisted by adopting the simple inserting suspension installation method, and huge hidden dangers exist:
firstly, a large-tonnage crane is needed to suspend the cone for a long time, on one hand, the suspension per se has certain risk, on the other hand, the large-tonnage crane is greatly consumed for a long time, the cost is not economical, and the installation and construction progress of other equipment is delayed;
secondly, the cone suspension process is greatly influenced by weather, wind and rain are adverse factors of suspension, the cone can shake, and the mounting process and precision are influenced;
third, the suspended cone is difficult to fix and to adjust its attitude, which adversely affects the accuracy of the installation and causes the vertical mill to operate improperly.
Disclosure of Invention
Aiming at the defects of the prior art, the embodiment of the invention provides a hoisting method of a cone of a vertical mill, aiming at: under the condition that the vertical mill shell is not effectively supported and cannot be effectively unfolded due to the narrow space in the vertical mill shell, hoisting of the cone of the vertical mill is safely, quickly and economically completed, the progress and the precision of cone installation are guaranteed, and the installation progress and the installation quality of the vertical mill are further guaranteed.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a hoisting method of a cone of a vertical mill comprises a mill shell, wherein a motor and a speed reducer are installed at the bottom of the mill shell, a grinding disc is installed on the upper portions of the mill shell and the motor and the speed reducer, the cone is installed above the grinding disc through a hoisting device and is installed on the mill shell through a cone support, and the hoisting method of the cone is characterized by comprising the following steps:
s1) installing the mill shell in a concrete foundation pit of the built vertical mill, and installing the motor, the speed reducer and the grinding disc in the mill shell;
s2) determining the accurate distance between the cone and the surface of the grinding disc according to the installation requirement, and determining the height of the cone squatting stand and the length, width or diameter of the cone squatting stand according to the accurate distance between the cone and the surface of the grinding disc and the surface area of the grinding disc;
s3) manufacturing the cone squatting stand according to the determined height, the determined length, the determined width or the determined diameter, placing the cone squatting stand at the center of the grinding disc, and arranging a jack at one side of the cone squatting stand so that a mandril of the jack is propped against the upper edge of the cone squatting stand;
s4) selecting a proper crane to lift the cone integrally according to the weight and the height of the cone, then placing the cone on the cone squatting frame, and enabling the installation center of the cone to be basically aligned with the center point of the grinding disc;
s5) at least two upper support rods are uniformly distributed around the cone, one end of each upper support rod is fixed in the middle of the outer surface of the cone, and the other end of each upper support rod is fixed on the mill shell;
s6) at least two lower support rods are uniformly distributed around the lower part of the cone, one end of each lower support rod is fixed at the lower part of the outer surface of the cone, and the other end of each lower support rod is supported on the grinding disc;
s7) arranging two chain blocks at the lower opening of the cone, wherein the two chain blocks are arranged backwards, one end of each chain block is connected to the lower opening of the cone, and the other end of each chain block is connected to the mill shell;
s8) hanging a plumb bob on the central point of the cone, adjusting by adjusting the jack and the chain block and marking the central line and the verticality of the cone through the plumb bob, and after the central line and the verticality of the cone are adjusted in place, fixedly connecting the two ends of the cone support to the cone and the mill shell respectively, namely completing the hoisting of the cone.
Furthermore, the cone squatting frame is a rectangular body or a cylinder with a frame structure or a round table.
Furthermore, the cone squatting frame, the upper support rod and the lower support rod are respectively made of channel steel or I-steel.
Furthermore, the channel steel is 20a channel steel, and the I-steel is No. 10I-steel.
Furthermore, the specification of the chain block is 5 tons.
Further, when the cone is 5.3m high and 22 tons heavy, and the installation distance between the cone and the grinding disc is 1.2m, the cone squatting frame is a rectangular body of a frame structure, the length of the rectangular body of the frame structure is 1.06m, the width of the rectangular body of the frame structure is 0.616m, and the height of the rectangular body of the frame structure is 1.2 m.
Further, when the height of the cone is 5.3m, the weight of the cone is 22 tons, and the installation distance between the cone and the grinding disc is 1.2m, the crane adopts a 250T crawler crane with a main arm of 33m and an operating radius of 12 m.
Further, the crane adopts a 16mm steel wire rope for hoisting.
The invention has the beneficial effects and remarkable progress that:
1) the embodiment of the invention provides a method for hoisting a cone of a vertical mill, which comprises the steps of installing a mill shell, installing a motor, a speed reducer and a millstone in the mill shell in a concrete foundation pit of the built vertical mill, determining the size of a cone squatting stand to be manufactured, placing the manufactured cone squatting stand at the central position of the millstone, arranging a jack at one side of the cone squatting stand, enabling a mandril of the jack to be propped against the upper edge of the cone squatting stand, selecting a proper crane to hoist the whole cone to be placed on the cone squatting stand, uniformly distributing an upper support rod and a lower support rod around the middle part and the lower part of the cone to reinforce the cone, arranging two chain blocks at the lower opening of the cone back, adjusting the central line and the verticality of the cone by adjusting the jack and the chain block, and finally fixing the cone on the mill shell by the cone stand, completing the hoisting of the cone;
2) the hoisting method of the cone of the vertical mill provided by the embodiment of the invention is novel, unique and simple and quick in construction, the cone can be conveniently and accurately installed in place only by manufacturing the cone squatting frame to help the temporary placement of the cone, reinforcing the cone through the proper amount of the upper support rod and the lower support rod, and then adjusting the central line and the verticality of the cone through the jack and the chain block, so that the safety and the rapidness of the cone in place are ensured, the very long working time of a crane is not occupied, the influence of weather during hoisting is avoided, the problem that the narrow space in the mill shell is not beneficial to the accurate adjustment of the installation position of the cone is overcome, the progress and the accuracy of the cone installation are ensured, and the installation progress and the installation quality of the vertical mill can be ensured;
3) the hoisting method of the vertical mill cone provided by the embodiment of the invention has high efficiency, operability and adaptability, can meet the hoisting requirements of a large device similar to the vertical mill cone, and has demonstration significance and heuristic significance, so that the hoisting method has popularization and application values.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only drawings of some embodiments of the invention, and that other drawings can be obtained by those skilled in the art without inventive exercise, and that the other drawings also belong to the drawings required for the embodiments of the invention.
FIG. 1 is a schematic diagram of a vertical mill of the prior art;
FIG. 2 is a schematic block diagram of a construction process of a hoisting method of a cone of a vertical mill provided by an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a squat cone rack of the method for hoisting a vertical mill cone provided by the embodiment of the invention;
fig. 4 is a schematic view of a hoisting process of the hoisting method of the cone of the vertical mill provided by the embodiment of the invention.
In the figure:
100-vertical mill;
10-mill shell, 11-motor and speed reducer, 12-grinding disc, 13-grinding roller;
20-powder selecting machine shell, 21-cone, 22-cone, 23-rotor and 24-powder selecting machine motor;
200-concrete foundation pit
31-a cone squatting frame, 32-an upper support rod, 33-a lower support rod, 34-a chain block and 35-a line hammer;
400-crane.
Detailed Description
In order to make the objects, technical solutions, advantages and significant progress of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings provided in the embodiments of the present invention, and it is obvious that all of the described embodiments are only some embodiments of the present invention, but not all 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.
It should be noted that the terms "first," "second," and "again" (if present) and the like in the description and the claims of the present invention and the drawings of the embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It is to be understood that in the description of the embodiments of the present invention, the terms "upper", "lower", "top", "bottom", and other indicative orientations and positions are only used based on the orientation and position relationship shown in the drawings of the embodiments of the present invention, and are used for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element in question must have a specific orientation, a specific orientation configuration and operation, and therefore, should not be taken as limiting the present invention.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, movably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Examples
Referring to fig. 1, a schematic structure of a vertical mill in the prior art is shown:
the vertical mill 100 described in this embodiment includes a mill housing 10, a motor and a speed reducer 11 are installed at the bottom of the mill housing 10, and a grinding disc 12 is installed at the upper portions of the mill housing 10 and the motor and speed reducer 11;
the cone 21 described in this embodiment should be placed above the grinding disc 12 and mounted on the mill housing 10 by means of a cone holder 22.
According to the schematic block diagram of the construction flow of the hoisting method of the vertical mill cone provided by the embodiment of the invention in fig. 2, and by combining with fig. 3, the schematic structural diagram of the squat frame of the cone of the hoisting method of the vertical mill cone provided by the embodiment of the invention, and the schematic diagram of the hoisting process of the hoisting method of the vertical mill cone provided by the embodiment of the invention in fig. 4 are shown:
the hoisting method for the cone of the vertical mill provided by the embodiment comprises the following steps:
s1) installing a mill shell 10 in a concrete foundation pit 200 of the well-built vertical mill 100, and installing a motor, a speed reducer 11 and a grinding disc 12 in the mill shell 10;
s2) determining the accurate distance between the cone 21 and the surface of the grinding disc 12 according to the installation requirement, and determining the height of the cone squat frame 31 and the length, width or diameter of the cone squat frame 31 according to the accurate distance between the cone 21 and the surface of the grinding disc 12 and the surface area of the grinding disc 12;
s3) manufacturing the cone squat frame 31 according to the determined height, length and width or diameter, and placing the cone squat frame 31 at the center of the grinding disc 12, and placing a jack (not shown) at one side of the cone squat frame 31, so that the top rod of the jack is against the upper edge of the cone squat frame 31;
s4) selecting a proper crane 400 to lift the cone 21 according to the weight and height of the cone 21, and then placing the cone 21 on the cone squat frame 31, and making the installation center of the cone 21 substantially aligned with the center point of the grinding disc 12;
s5) at least two upper brace bars 32 are evenly distributed around the cone 21, one end of each upper brace bar 32 is fixed in the middle of the outer surface of the cone 21, and the other end of each upper brace bar 32 is fixed on the mill shell 10;
s6) at least two lower supporting rods 33 are uniformly arranged around the lower part of the cone 21, one end of each lower supporting rod 33 is fixed at the lower part of the outer surface of the cone 21, and the other end of each lower supporting rod 33 is supported on the grinding disc 12;
s7) arranging two chain blocks 34 at the lower opening of the cone 21, wherein the two chain blocks 34 are arranged back to back, one end of each chain block 34 is connected to the lower opening of the cone 21, and the other end of each chain block 34 is connected to the mill shell 10;
s8) hanging the plumb bob 35 on the central point of the cone 21, adjusting by the adjusting jack (not shown in the figure) and the chain block 34, marking the central line and the verticality of the cone 21 by the plumb bob 35, after the central line and the verticality of the cone 21 are adjusted in place, fixedly connecting the two ends of the cone support 22 to the cone 21 and the mill shell 10 respectively, and completing the hoisting of the cone 21.
From the above description, it can be seen that:
firstly, in the method for hoisting the cone of the vertical mill provided by the embodiment, the mill shell is installed in the concrete foundation pit of the built vertical mill, and the motor, the speed reducer and the grinding disc are installed in the mill shell, then determining the size of the cone squat frame to be manufactured and placing the manufactured cone squat frame at the central position of the grinding disc, and a jack is arranged at one side of the cone squatting frame, the mandril of the jack is propped against the upper edge of the cone squatting frame, then a proper crane is selected to lift the whole cone on the cone squatting frame, the upper support rod and the lower support rod are respectively arranged at the middle part and the lower part of the cone to reinforce the cone, two chain blocks are arranged at the lower opening of the cone in a back way, the center line and the verticality of the cone are adjusted by adjusting the jack and the chain block, and finally the cone is fixed on the mill shell through the cone support, so that the hoisting of the cone can be completed;
secondly, the hoisting method of the cone of the vertical mill provided by the embodiment is novel, unique and simple and rapid in construction, the cone can be conveniently and accurately installed in place only by manufacturing a cone squatting frame to help the temporary placement of the cone, reinforcing the cone through a proper amount of upper support rods and lower support rods, and then adjusting the central line and the verticality of the cone through a jack and a chain block, so that the safety and the rapidness of the cone are ensured, the long working time of a crane is not occupied, the influence of weather during hoisting is avoided, and the problem that the accurate adjustment of the installation position of the cone is not facilitated due to the small space in the shell of the mill is solved;
and thirdly, the hoisting method of the cone of the vertical mill provided by the embodiment of the invention has high efficiency, operability and adaptability, can ensure the mounting progress and precision of the cone, can also meet the hoisting requirement of a large device similar to the cone of the vertical mill, ensures that the mounting quality meets the design requirement, and has demonstration significance and inspiration significance, thereby having great popularization and application values.
Further, in this embodiment:
the cone squat frame 31 is a rectangular body (as shown in fig. 3) or a cylinder (not shown) or a circular truncated cone (not shown) of a frame structure;
the cone squat frame 31, the upper brace 32 and the lower brace 33 are made of channel steel (as shown in fig. 3) or i-steel, wherein the channel steel is 20a channel steel, and the i-steel is number 10 i-steel.
Furthermore, the size of the chain block 34 is 5 tons, so as to meet the requirement of adjusting the position of the cone 21.
In a specific hoisting process:
when the height of the cone 21 is 5.3m, the weight is 22 tons, and the installation distance between the cone 21 and the grinding disc 12 is 1.2m, the cone squat frame 31 may be a rectangular body of a frame structure, the length of the rectangular body of the frame structure is 1.06m, the width of the rectangular body of the frame structure is 0.616m, and the height of the rectangular body of the frame structure is 1.2 m;
when the height of the cone 21 is 5.3m, the weight is 22 tons, and the installation distance between the cone 21 and the grinding disc 12 is 1.2m, the crane 400 adopts a 250T crawler crane with a main arm of 33m and an operating radius of 12 m.
Further, the crane 400 uses a 16mm steel wire rope for hoisting to ensure the safety of the cone 21.
In the above description:
the description of the terms "this embodiment," "an embodiment of the invention," "as shown at … …," "further improved technical solution," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention;
in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples;
furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same;
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.
Claims (8)
1. A hoisting method of a cone of a vertical mill comprises a mill shell, wherein a motor and a speed reducer are installed at the bottom of the mill shell, a grinding disc is installed on the upper portions of the mill shell and the motor and the speed reducer, the cone is installed above the grinding disc through a hoisting device and is installed on the mill shell through a cone support, and the hoisting method of the cone is characterized by comprising the following steps:
s1) installing the mill shell in a concrete foundation pit of the built vertical mill, and installing the motor, the speed reducer and the grinding disc in the mill shell;
s2) determining the precise distance between the cone and the surface of the grinding disc according to the installation requirement, and determining the height of the cone squat stand and the length and width or diameter of the cone squat stand according to the precise distance between the cone and the surface of the grinding disc and the surface area of the grinding disc;
s3) manufacturing the cone squatting stand according to the determined height, the determined length and width or diameter, placing the cone squatting stand at the center of the grinding disc, and arranging a jack at one side of the cone squatting stand so that a mandril of the jack is propped against the upper edge of the cone squatting stand;
s4) selecting a proper crane to lift the cone integrally according to the weight and the height of the cone, then placing the cone on the cone squatting frame, and enabling the installation center of the cone to be basically aligned with the center point of the grinding disc;
s5) at least two upper support rods are uniformly distributed around the cone, one end of each upper support rod is fixed in the middle of the outer surface of the cone, and the other end of each upper support rod is fixed on the mill shell;
s6) at least two lower support rods are uniformly distributed around the lower part of the cone, one end of each lower support rod is fixed at the lower part of the outer surface of the cone, and the other end of each lower support rod is supported on the grinding disc;
s7) arranging two chain blocks at the lower opening of the cone, wherein the two chain blocks are arranged back to back, one end of each chain block is connected to the lower opening of the cone, and the other end of each chain block is connected to the mill shell;
s8) hanging a plumb bob on the central point of the cone, adjusting the jack and the chain block and marking the central line and the verticality of the cone through the plumb bob, and after the central line and the verticality of the cone are adjusted in place, fixedly connecting the two ends of the cone support to the cone and the mill shell respectively, namely completing the hoisting of the cone.
2. A method of lifting a vertical mill cone as claimed in claim 1, characterised in that: the cone squatting frame is a rectangular body or a cylinder with a frame structure or a round table.
3. A method of lifting a vertical mill cone as claimed in claim 1, characterised in that: the cone squatting frame, the upper support rod and the lower support rod are respectively made of channel steel or I-steel.
4. The method for hoisting a vertical mill cone according to claim 3, characterized in that: the channel steel is 20a channel steel, and the I-steel is No. 10I-steel.
5. A method of lifting a vertical mill cone as claimed in claim 1, characterised in that: the specification of the chain block is 5 tons.
6. A method of lifting a vertical mill cone as claimed in claim 1, characterised in that: when the cone is 5.3m high, the weight is 22 tons, and the installation distance between the cone and the grinding disc is 1.2m, the cone squatting frame is a rectangular body of a frame structure, the length of the rectangular body of the frame structure is 1.06m, the width of the rectangular body is 0.616m, and the height of the rectangular body is 1.2 m.
7. A method of lifting a vertical mill cone as claimed in claim 1, characterised in that: when the height of the cone is 5.3m, the weight of the cone is 22 tons, and the installation distance between the cone and the grinding disc is 1.2m, the crane adopts a 250T crawler crane with a main arm of 33m and an operating radius of 12 m.
8. A method of lifting a vertical mill cone as claimed in claim 1, characterised in that: the crane adopts a 16mm steel wire rope for hoisting.
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| CN202010263652.XA CN111468243B (en) | 2020-04-07 | 2020-04-07 | Hoisting method of vertical mill cone |
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| CN202010263652.XA CN111468243B (en) | 2020-04-07 | 2020-04-07 | Hoisting method of vertical mill cone |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3430874A (en) * | 1963-12-27 | 1969-03-04 | Jeffrey Galion Inc | Continuous muller |
| US3840190A (en) * | 1972-06-30 | 1974-10-08 | Carle & Montanari Spa | Mill for the refining of cocoa,chocolate,paints and other similar products |
| EP0337238A2 (en) * | 1988-04-11 | 1989-10-18 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary separator for use in pulverizer |
| CN2418946Y (en) * | 1999-11-22 | 2001-02-14 | 徐毅茹 | Vertical mill |
| CN103071564A (en) * | 2013-01-14 | 2013-05-01 | 莱歇研磨机械制造(上海)有限公司 | Casing body structure of grinding roller installation casing of roller type grinder |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN105855030A (en) * | 2015-09-24 | 2016-08-17 | 佛山科学技术学院 | Electro-magnetic vibrating and screening and returning device of ceramic raw material roller mill |
-
2020
- 2020-04-07 CN CN202010263652.XA patent/CN111468243B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3430874A (en) * | 1963-12-27 | 1969-03-04 | Jeffrey Galion Inc | Continuous muller |
| US3840190A (en) * | 1972-06-30 | 1974-10-08 | Carle & Montanari Spa | Mill for the refining of cocoa,chocolate,paints and other similar products |
| EP0337238A2 (en) * | 1988-04-11 | 1989-10-18 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary separator for use in pulverizer |
| CN2418946Y (en) * | 1999-11-22 | 2001-02-14 | 徐毅茹 | Vertical mill |
| CN103071564A (en) * | 2013-01-14 | 2013-05-01 | 莱歇研磨机械制造(上海)有限公司 | Casing body structure of grinding roller installation casing of roller type grinder |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN105855030A (en) * | 2015-09-24 | 2016-08-17 | 佛山科学技术学院 | Electro-magnetic vibrating and screening and returning device of ceramic raw material roller mill |
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