CN108672029B - Novel vertical stirring mill - Google Patents
Novel vertical stirring mill Download PDFInfo
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- CN108672029B CN108672029B CN201810696059.7A CN201810696059A CN108672029B CN 108672029 B CN108672029 B CN 108672029B CN 201810696059 A CN201810696059 A CN 201810696059A CN 108672029 B CN108672029 B CN 108672029B
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- 238000003756 stirring Methods 0.000 title claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000000227 grinding Methods 0.000 claims abstract description 39
- 239000002002 slurry Substances 0.000 claims abstract description 38
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 17
- 238000005299 abrasion Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012886 linear function Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- -1 middling Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
- B02C17/163—Stirring means
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a novel vertical stirring mill, which comprises a driving device, an upper machine body, a transmission device, a cylinder body, a spiral stirrer and a sorting tank, wherein the driving device, the upper machine body and the cylinder body are sequentially connected through connecting bolts from top to bottom, the spiral stirrer is vertically suspended in the cylinder body, the transmission device is arranged in the upper machine body, the upper end of the transmission device is connected with the driving device through a coupler, the lower end of the transmission device is connected with the spiral stirrer through an end face key and a bolt fastener, a slurry inlet, an upper discharge port and a lower discharge port are arranged on the outer circular surface of the sorting tank body, the slurry inlet is connected with an overflow port on the outer circular surface of the lower part of the upper machine body through a reducer pipe, the upper discharge port is connected with a hydraulic cyclone of process equipment through a process pipeline, the lower discharge port of the circulating pump is connected with a return port on the side wall of the lower part of the cylinder body through an outlet pipeline, and a circular flow grinding classification system is formed.
Description
Technical Field
The invention belongs to the technical field of ore grinding equipment, and particularly relates to a novel vertical stirring mill.
Background
The energy system optimization project is one of the ten major energy-saving projects in China, the energy-saving transformation of a mineral processing industry system, which is mainly used by iron and steel enterprises, is the most main development direction of the energy system optimization project, the mineral processing industry is energy consumption households, which accounts for about 9% of the total energy consumption in China, in a raw material preparation process system, a three-section crushing and three-section ore grinding process flow is generally adopted, wherein a wet overflow type ball mill is generally adopted as fine grinding equipment, the energy consumption accounts for more than 35% of mineral processing, the material fineness is 50-70%, the ball mill mainly adopts an impact grinding mode for grinding ore, so that the granularity of a product is generally coarse, the problems of low concentrate grade and low recovery rate generally exist, the vertical stirring mill is used as main fine grinding and superfine grinding equipment in the modern mineral processing technology, and is started to be applied to fine grinding and superfine grinding of coarse concentrate, middling, concentrate and tailing, and the vertical stirring mill is installed vertically, and has the advantages of high efficiency, energy saving, high mineral material adaptability, high equipment operation rate, normal state distribution, low abrasion, low noise, small occupied area, simple operation, short installation period, long service life and the like compared with the traditional horizontal ball mill.
The traditional vertical stirring mill has the defects that the grinding efficiency of equipment is low and the service life of a wear-resistant piece is short due to unreasonable design of a spiral stirrer, so that the maintenance frequency of the equipment is increased; the grinding machine cylinder body is not provided with a grinding door, when the wear-resistant parts such as the spiral lining plate and the like are replaced, main parts such as a main motor, a speed reducer, a shaft coupling, a transmission shaft, a bearing and an upper machine body are required to be removed, and after the maintenance is finished, all the parts are required to be reinstalled, so that not only are the field required to be provided with an assembler with mature technology and a complete-variety installation maintenance tool, but also the maintenance time of equipment and the labor intensity of workers are greatly increased, and the operation rate of the equipment is reduced; the traditional vertical stirring mill is not provided with a separation groove, closed cycle of materials cannot be realized, when other process equipment is stopped and overhauled, in order to prevent hardening of materials and grinding media in the mill, the grinding media in the vertical stirring mill must be discharged, and the grinding media are loaded into the stirring mill again after the overhauling is finished, so that the maintenance workload of the equipment is increased, and the operation rate of the equipment is reduced; the central overflow port adopted by the traditional vertical stirring mill increases the circulation load rate of the materials in the mill, so that the fluid resistance of the materials in the mill is increased, and the grinding efficiency is low; in the prior stirring mill transmission mechanism, uneven radial stress of a main shaft often occurs, unbalanced load is generated, so that vibration is generated, damage to bearings and the like is aggravated, and unstable operation of equipment is caused; at present, the traditional vertical stirring mill cannot be a truly efficient vertical stirring mill, so that development of a novel efficient vertical stirring mill is urgently needed.
Disclosure of Invention
In order to solve the problems in the background technology, a separation groove is configured for the vertical stirring mill, a circular grinding classification system is formed, and the design of other parts of the mill is optimized, so that the stable and efficient operation of the mill is realized.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a novel vertical stirring mill, including the drive arrangement of vertical installation, go up organism 4, transmission, barrel 2, helical agitator 3, drive arrangement is closing on last organism 4 through connecting bolt, go up organism 4 and pass through the bolt fastener and connect on the barrel 2 of mill, the lower part of barrel 2 passes through rag bolt to be fixed on concrete mill basis 17, helical agitator 3 is vertical hangs inside barrel 2, transmission establishes inside last organism 4, the transmission upper end passes through the shaft coupling and is connected with drive arrangement, the lower extreme of transmission passes through terminal surface key and bolt fastener and is connected with helical agitator 3, go up organism 4 and be connected through the reducing pipe with the separation tank, the separation tank includes separation tank body 12, electric poppet valve assembly 11, circulating pump 15, be equipped with slurry inlet 10 on the outer disc of separation tank body 12, go up bin 13, lower bin 16, slurry inlet 10 passes through the overflow pipe and is connected with the overflow mouth 8 on the outer disc of last organism 4 lower part, go up bin 13 passes through the process piping and hangs in the inside barrel 2, transmission establishes in the inside at upper bin 16 through the entry pipeline of circulating pump 15 and is connected with circulating pump 15, circulating pump 15's entry pipeline and 15 are equipped with the inlet pipe 15, the inlet port that is equipped with the circulating pump 15 is with the circulating pump 15, the inlet 15 has, the inlet 15 is equipped with the circulating pump 15, the inlet is equipped with the drain pipe is with the wear-resisting pipe 15, the drain pipe is the drain pipe 15.
The novel vertical stirring mill comprises an upper machine body 4, wherein the upper machine body comprises five circular bases which are arranged at parallel intervals, a fifth base 4.1, a fourth base 4.2, a third base 4.4, a second base 4.5 and a first base 4.6 are arranged from bottom to top respectively, vertical through holes penetrating through the bases are formed in the middle of the circular bases, the second base 4.5 is fixed in the middle of the upper surface of the third base 4.4 through a bolt fastener, the first base 4.6 and the second base 4.5 are connected through an annular supporting plate, a plurality of gaps are formed in the annular supporting plate at intervals, a plurality of feed inlets 4.3 are formed in the positions, corresponding to the gaps, of the fourth base 4.2, the fifth base 4.1 and the fourth base 4.2 are connected through an annular connecting plate, overflow ports 8 are formed in the outer circular surface of the annular connecting plate, and the fifth base 4.1, the fourth base 4.2, the annular volute and the overflow ports 8 jointly form a single-shaped structure.
The novel vertical stirring mill is characterized in that a cylinder body 2 is cylindrical, an opening is formed in the outer circular surface of the cylinder body 2, a mill door 1 is hinged to the opening, the mill door 1 rotates by 0-120 degrees relative to the cylinder body 2, the inner surface of the mill door 1 is an arc surface, the arc surface of the inner surface of the mill door 1 and the inner surface of the cylinder body 2 form a complete cylindrical inner circular surface, lining plates are arranged on the inner surface of the mill door 1 and the inner surface of the cylinder body 2, sealing gaskets are arranged on the joint surfaces of the mill door 1 and the flange of the cylinder body 2, and sealing glue is smeared on the joint surfaces of the mill door 1 and the flange of the cylinder body 2 when the mill works normally, so that a locally closed milling cavity space is provided for equipment; when the grinder is overhauled, the grinder door 1 is opened, and vulnerable parts such as a spiral lining plate, a rubber lining plate and a magnetic lining plate in the grinder are inspected and replaced.
The novel vertical stirring mill comprises a main motor 6 and a speed reducer 7, wherein the main motor 6 is connected with the speed reducer 7 through a coupling, the main motor 6 is arranged above the speed reducer 7, and the speed reducer 7 is combined on the upper surface of the first base 4.6 through a bolt fastener.
The novel vertical stirring mill is characterized in that the transmission device comprises an upper main shaft 5, a locking disc outer sleeve 18, an expansion sleeve, a spherical roller thrust bearing 19, a self-aligning bearing 20, a sliding bearing 21 and a lubricating sealing device are sequentially sleeved on the upper main shaft 5 from top to bottom, the upper end of the locking disc outer sleeve 18 is connected with a speed reducer 7 through a coupler, the self-aligning bearing 20 is arranged between the vertical through holes of the upper main shaft 5 and a third base 4.4, the sliding bearing 21 is arranged between the vertical through holes of the upper main shaft 5 and a fourth base 4.2, a convex end face key 5.1 is arranged at the lower end of the upper main shaft 5, and the upper main shaft 5 is connected with the spiral stirrer 3 through the end face key 5.1 and a bolt fastener.
The novel vertical stirring mill is characterized in that the spiral stirrer 3 comprises a cylindrical transmission shaft 3.1, a spiral supporting plate 3.2, a spiral lining plate 3.3 and a wear-resistant and corrosion-resistant layer, the spiral supporting plate 3.2 which is spirally coiled is welded on the circumferential surface of the transmission shaft 3.1, the spiral lining plate 3.3 which is consistent with the coiling shape of the spiral supporting plate 3.2 is attached to the upper surface of the spiral supporting plate 3.2, the spiral supporting plate 3.2 and the spiral lining plate 3.3 are connected through bolts, the wear-resistant and corrosion-resistant layer is arranged outside the transmission shaft 3.1 and the spiral supporting plate 3.2, and the upper end of the transmission shaft 3.1 is connected with an upper main shaft 5 through an end face key 5.1 and a bolt fastener; the transmission shaft 3.1 is a nickel-chromium-molybdenum alloy steel forging, the spiral supporting plate 3.2 is formed by pressing a high-strength flaw detection steel plate, a transition layer is required to be deposited on the transmission shaft 3.1 before welding, the spiral lining plate 3.3 is made of high-chromium cast iron, the section shape of the spiral lining plate is designed to be an integral downward-sweeping structure in the radial direction, the spiral lining plate is divided into an upper lining plate and a lower lining plate, the abrasion of the lower lining plate is serious, the multi-pitch structure is adopted, the special thickening treatment is carried out on the parts with serious abrasion, the service life is prolonged, the upper lining plate is designed in a module mode, and the universality is higher.
The novel vertical stirring mill is characterized in that the sorting tank body 12 adopts a single volute-shaped structure, the sorting tank body 12 is divided into an upper cavity and a lower cavity by a porous partition plate, the upper cavity adopts a high-efficiency and low-pressure loss structure with tangential feeding and axial sand return, the cavity height-diameter ratio is changed according to different process conditions, all parts of the inner surface of the cavity, which are contacted with slurry, are adhered with wear-resistant rubber, slurry inlets 10 and upper discharge ports 13 are arranged on the outer circular surface of the upper cavity at intervals, lower discharge ports 16 are arranged on the outer circular surface of the lower cavity, the lower end of a lifting valve rod of the electric lifting valve assembly 11 penetrates through a hole on the partition plate to extend downwards to be connected with a cone with a cambered surface structure, and the displacement of the lifting valve rod and the opening of the valve are kept in a linear function relationship, so that the metering precision of slurry flow is ensured.
By adopting the technical scheme, the invention has the following advantages:
1. the vertical stirring mill is provided with a pre-grading separation tank, the separation tank and the vertical stirring mill form a circulation grinding grading system together, the pre-grading effect is achieved, the circulation load rate of the hydrocyclone is reduced, the grading efficiency and the grading precision of the hydrocyclone are improved, and the grinding efficiency of the vertical stirring mill is improved; when the vertical stirring mill is in a standby stop state or an emergency stop state, circulation of slurry in the mill can be performed, and the problem of hardening of slurry and grinding media in the mill is effectively solved.
2. The novel spiral stirrer with the integral sweepdown structure and the high-efficiency abrasion-resistant lower spiral lining plate are adopted, so that the radial velocity gradient is more balanced, the motion resistance of grinding media is greatly reduced, the grinding strength and grinding efficiency of the vertical stirring mill are improved, the service life of the spiral lining plate is prolonged, the frequency of changing the lining plate is reduced, and the operation rate of equipment is improved.
3. The grinding door is arranged on the grinding machine barrel, when the inside of the grinding machine is overhauled, the steps of disassembling and assembling the main motor, the speed reducer and the upper machine body are omitted, unnecessary installation precision control and inspection are omitted, a large amount of manpower and material resources can be saved, the replacement of the spiral lining plate and the barrel lining plate of the vertical stirring mill and other maintenance time are reduced, and the operation rate of equipment is greatly improved.
4. The single volute involute overflow port is adopted, so that the local resistance loss of slurry in the vertical stirring mill body is reduced, the lower cyclic load rate of materials in the mill is realized, and the ore grinding efficiency and the product classification precision are improved.
5. The transmission device adopts a suspension type transmission structure, so that the stress of a transmission shaft and an upper main shaft of the stirring mill is more uniform, the stability of equipment starting and running is improved, and the damage behaviors of bearing heating, sealing ring grease leakage, sliding bearing ablation, warping and the like which often occur in the vertical stirring mill are solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the structure of the helical agitator of the present invention;
FIG. 4 is a schematic view of the structure of the cylinder mill door in the closed state;
FIG. 5 is a schematic view of the open structure of the barrel grinding door of the present invention;
FIG. 6 is a schematic view of the structure of the upper body in the present invention;
FIG. 7 is a schematic structural view of the transmission of the present invention;
FIG. 8 is a schematic view of the sectional structure of the sorting tank body in the present invention;
in the figure: 1 grinding a door; 2, a cylinder; 3, a spiral stirrer; 3.1 a transmission shaft; 3.2 spiral supporting plates; 3.3 spiral lining board; 4, feeding the machine body; 4.1 a fifth base; 4.2 a fourth base; 4.3 a feed inlet; 4.4 a third base; 4.5 a second base; 4.6 a first base; 5 an upper spindle; 6, a main motor; 7, a speed reducer; 8 overflow ports; 9, a material returning port; 10 slurry inlet; 11 poppet valve assembly; 12 sorting tank body; 13, a discharge hole is formed on the upper part; 14, a discharge hole; 15 circulating pumps; 16 lower discharge openings; 17 a mill base; 18 locking the disc outer sleeve; 19 spherical roller thrust bearings; 20 aligning the bearing; 21 a sliding bearing.
Detailed Description
The invention will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the invention.
The novel vertical stirring mill is characterized by comprising a vertically installed driving device, an upper machine body 4, a transmission device, a cylinder body 2 and a spiral stirrer 3, wherein the driving device is combined on the upper machine body 4 through a connecting bolt, the upper machine body 4 is connected on the cylinder body 2 of the mill through a bolt fastener, the lower part of the cylinder body 2 is fixed on a concrete mill foundation 17 through a foundation bolt, the spiral stirrer 3 is vertically suspended inside the cylinder body 2, the transmission device is arranged inside the upper machine body 4, the upper end of the transmission device is connected with the driving device through a coupler, the lower end of the transmission device is connected with the spiral stirrer 3 through an end face key and the bolt fastener, the upper machine body 4 is connected with a sorting tank through a reducing pipe, the sorting tank comprises a sorting tank body 12, an electric lifting valve assembly 11 and a circulating pump 15, a slurry inlet 10, an upper discharge outlet 13 and a lower discharge outlet 16 are arranged on the outer circular surface of the sorting tank body 12, the upper discharge outlet 13 is connected with an overflow port 8 on the outer circular surface of the lower part of the upper machine body 4 through a reducing pipe, the upper discharge outlet 16 is connected with a process equipment hydraulic cyclone through a process pipe, the lower discharge outlet 16 is connected with the circulating pump 15 through a reducing pipe, the upper discharge pipe 15 is provided with a circulating pump 15, the upper side wall 15 is provided with a circulating pump 15 is provided with a wear-resistant pipe, and the side wall 15 is provided with a circulating pump 15, the circulating inlet is provided with a wear-resistant pipe, the circulating pipe is provided with a side 15, the circulating pipe is required has a side 15.
The novel vertical stirring mill described in connection with fig. 6, wherein the upper machine body 4 comprises five circular bases arranged at parallel intervals, namely a fifth base 4.1, a fourth base 4.2, a third base 4.4, a second base 4.5 and a first base 4.6 from bottom to top, vertical through holes penetrating through the bases are formed in the middle of the circular bases, the second base 4.5 is fixed in the middle of the upper surface of the third base 4.4 through a bolt fastener, the first base 4.6 and the second base 4.5, the third base 4.4 and the fourth base 4.2 are connected through an annular supporting plate, a plurality of notches are formed in the annular supporting plate at intervals, a plurality of feed inlets 4.3 are formed in the positions, corresponding to the notches, of the fourth base 4.2, the fifth base 4.1 and the fourth base 4.2 are connected through an annular connecting plate, an overflow port 8 is formed in the outer circular surface of the annular connecting plate, the fifth base 4.1, the fourth base 4.2, the annular connecting plate and the overflow port 8 jointly form a single volute-shaped structure, and the single volute-shaped involute overflow port is adopted.
The novel vertical stirring mill is characterized in that the cylinder body 2 is cylindrical, an opening is formed in the outer circular surface of the cylinder body 2, a mill door 1 is hinged to the opening, the mill door 1 rotates by 0-120 degrees relative to the cylinder body 2, the inner surface of the mill door 1 is an arc surface, the arc surface of the inner surface of the mill door 1 and the inner surface of the cylinder body 2 form a complete cylindrical inner circular surface, lining plates are arranged on the inner surface of the mill door 1 and the inner surface of the cylinder body 2, a sealing gasket is arranged on the joint surface of the flange of the mill door 1 and the cylinder body 2 when the mill normally works, sealing glue is coated, a locally closed grinding cavity space is provided for equipment, a connecting bolt between the mill door 1 and the cylinder body 2 is loosened when the inside of the mill is overhauled, the mill door 1 is loosened by using an auxiliary tool, the mill door 1 is then rotated by 120 degrees, the lining plates of the spiral lining plates 3.3 and the cylinder body 2 are replaced inside the mill, or the transmission shaft 3.1 and the spiral stirrer 3.2 are inspected and maintained inside the mill, and the whole stirrer 3.1 is removed by using an auxiliary tool to replace the transmission shaft 3.1 and the overhauling shaft.
The novel vertical stirring mill is described with reference to fig. 1 and 2, the driving device comprises a main motor 6 and a speed reducer 7, the main motor 6 is connected with the speed reducer 7 through a coupling, the main motor 6 is arranged above the speed reducer 7, and the speed reducer 7 is combined on the upper surface of the first base 4.6 through a bolt fastener.
The novel vertical stirring mill is characterized in that a transmission device is arranged in a vertical through hole in the middle of a circular base and adopts a suspension type transmission structure to realize load split, the transmission device comprises an upper main shaft 5, a locking disc jacket 18, an expansion sleeve, a spherical roller thrust bearing 19, a self-aligning bearing 20, a sliding bearing 21 and a lubrication sealing device are sleeved on the upper main shaft 5 from top to bottom in sequence, the upper end of the locking disc jacket 18 is connected with a speed reducer 7 through a coupler, the self-aligning bearing 20 is arranged between the upper main shaft 5 and the vertical through hole of a third base 4.4, the sliding bearing 21 is arranged between the upper main shaft 5 and the vertical through hole of a fourth base 4.2, a convex end face key 5.1 is arranged at the lower end of the upper main shaft 5, the upper main shaft 5 is connected with a spiral stirrer 3 through the end face key 5.1 and a bolt fastener, torque of the mill is transmitted to the upper main shaft 5 through the locking disc jacket 18, and then transmitted to a transmission shaft 3.1 of the spiral stirrer 3 to drive the spiral stirrer 3 to rotate, axial force generated by the mill is transmitted to the spherical roller thrust bearing 19 through the locking disc jacket 18, and the spherical roller thrust bearing 19 is transmitted to the spiral stirrer 3; during the starting and working process of the mill, radial force generated by the mill is transmitted to the mill body through the aligning bearing 20 and the sliding bearing 21, the aligning bearing 20 and the sliding bearing 21 limit the left-right swing of the upper main shaft 5 and the spiral stirrer 3, the radial aligning effect is achieved, and the rotating stability of the spiral stirrer 3 is ensured.
The novel vertical stirring mill is described with reference to fig. 3, the spiral stirrer 3 comprises a cylindrical transmission shaft 3.1, a spiral supporting plate 3.2, a spiral lining plate 3.3 and a wear-resistant anti-corrosion layer, the spiral supporting plate 3.2 which is spirally coiled is welded on the circumferential surface of the transmission shaft 3.1, the spiral lining plate 3.3 which is consistent with the coiling shape of the spiral supporting plate 3.2 is attached to the upper surface of the spiral supporting plate 3.2, the spiral supporting plate 3.2 and the spiral lining plate 3.3 are connected through bolts, the wear-resistant anti-corrosion layer is arranged outside the transmission shaft 3.1, the spiral supporting plate 3.2 and the spiral lining plate 3.3, and the upper end of the transmission shaft 3.1 is connected with an upper main shaft 5 through an end face key 5.1 and a bolt fastener; the transmission shaft 3.1 is a nickel-chromium-molybdenum alloy steel forging, the spiral supporting plate 3.2 is formed by pressing a high-strength flaw detection steel plate, a transition layer is required to be deposited on the transmission shaft 3.1 before welding, the spiral lining plate 3.3 is made of high-chromium cast iron, the section shape of the spiral lining plate is designed to be an integral downward-sweeping structure in the radial direction, the spiral lining plate is divided into an upper lining plate and a lower lining plate, the abrasion of the lining plate is serious, the multi-pitch structure is adopted, the special thickening treatment is carried out on the part with serious abrasion, the service life is prolonged, the upper lining plate is designed in a modular mode, and the universality is stronger.
In combination with the figure 8, a novel vertical stirring mill is described, the separation tank body 12 adopts a single volute-shaped structure, the separation tank body 12 is divided into an upper cavity and a lower cavity by a perforated partition plate, the upper cavity adopts a high-efficiency and low-pressure loss structure with tangential feeding and axial sand returning, the cavity height-diameter ratio is changed according to different process conditions, all parts contacted with slurry on the inner surface of the cavity are adhered with wear-resistant rubber, a slurry inlet 10 and an upper discharge port 13 are arranged on the outer circumferential surface of the upper cavity at intervals, a lower discharge port 16 is arranged on the outer circumferential surface of the lower cavity, the lower end of a lifting valve rod of an electric lifting valve assembly 11 is downwards extended to be connected with a cone with a cambered surface structure through a hole on the partition plate, the displacement of the lifting valve rod and the opening of the valve are in a linear function relation, the metering accuracy of slurry flow is ensured, the lifting valve rod of the lifting valve assembly 11 is adjusted by adjusting the opening of the lifting valve rod, so that the quantity of slurry flowing into the bottom of the separation tank body 12 is adjusted, the quantity of slurry flowing into a subsequent hydrocyclone, the slurry flowing into the subsequent cyclone pump through the cylindrical body 12, the slurry flowing into the slurry inlet 15 is recycled to the cylindrical body 2 through the lower discharge port 16, and the cyclone pump 2 flows into the cylindrical body through the circulation pump 2 in turn, and the cyclone pump 2 is returned into the cylindrical body of the cylindrical body after the cyclone pump.
The working process of the invention is as follows:
the novel vertical stirring mill drives the spiral stirrer 3 to rotate at a constant speed through the main motor 6, the speed reducer 7 and the upper main shaft 5, grinding media with proper grading are filled in the mill cylinder 2, sand setting slurry from the hydrocyclone enters the inside of the cylinder 2 through the feed port 4.3, under the stirring action of the spiral stirrer 3, the grinding media and the materials are subjected to the combined action of drag force, centrifugal force, friction force and gravity to generate circular motion, namely slurry between the transmission shaft 3.1 and the spiral lining plate 3.3 rises gradually, part of the materials in an annular area between the spiral lining plate 3.3 and the lining plate on the inner surface of the cylinder 2 falls spirally, but due to non-uniformity of stress, larger speed gradients of the grinding media, slurry flow and each other are formed, so that the materials are extruded, sheared, peeled off, broken and split and the like are combined action, the superfine grinding effect is achieved, qualified materials in the ground materials rise along with the slurry flow, the unqualified materials circulate back to the bottom of the mill cylinder 2 in the vertical stirring mill cylinder, and re-grinding is realized, and the purpose of pre-graded grinding of the internal gravity and agglomeration is achieved; the constant addition process water can enable slurry to overflow the vertical stirring mill, overflow slurry flows into the separation tank body 12 through the overflow port 8 and the slurry inlet 10 in sequence, coarser materials larger than the cutting particle size in the region are enabled to flow together with slurry to collide with the inner wall of the separation tank and fall along the inner wall of the separation tank due to larger inertia force, and finally fall into the lower cavity at the bottom of the separation tank body 12, finer materials smaller than the cutting particle size rise with slurry due to larger drag force of the slurry and enter a subsequent hydrocyclone through the upper discharge port 13, the positions of a lifting valve rod and a bottom cone in the electric poppet valve assembly 11 in the separation tank determine how much slurry flows into the bottom of the separation tank, how much slurry flows into the subsequent hydrocyclone, the slurry flowing into the bottom of the separation tank body 12 is pumped by the circulating pump 15 through the lower discharge port 16, and sequentially flows back into the vertical stirring tank 2 through the outlet pipeline of the circulating pump 15 and the return port 9 on the side wall of the tank 2, the slurry flowing into the upper discharge port 13 of the separation tank body 12 and the system are enabled to be fed into the subsequent hydrocyclone through the slurry pump together, and the size of the subsequent hydrocyclone can be adjusted through the cyclone, the size and the size of the cyclone can be adjusted, the size and the size of the cyclone size can be adjusted, the size can be adjusted, and the fineness of the size of the product can be adjusted, and the size of the size can be adjusted, and the size of the product can be adjusted, and the size of the quality can be adjusted and the quality of the quality can be adjusted.
The invention is not described in detail in the prior art.
The embodiments selected herein for the purposes of disclosing the present invention are presently considered to be suitable, but it is to be understood that the present invention is intended to include all variations and modifications of the embodiments falling within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a novel vertical stirring mill which characterized in that: comprises a vertically installed driving device, an upper machine body (4), a transmission device, a cylinder body (2) and a spiral stirrer (3), wherein the driving device is combined on the upper machine body (4) through a connecting bolt, the upper machine body (4) is connected on the cylinder body (2) of a grinding machine through a bolt fastener, the lower part of the cylinder body (2) is fixed on a concrete grinding machine foundation (17) through a foundation bolt, the spiral stirrer (3) is vertically suspended inside the cylinder body (2), the transmission device is arranged inside the upper machine body (4), the upper end of the transmission device is connected with the driving device through a coupler, the lower end of the transmission device is connected with the spiral stirrer (3) through an end face key and a bolt fastener, the upper machine body (4) comprises five round bases which are arranged at parallel intervals, the lower to be respectively a fifth base (4.1), a fourth base (4.2), a third base (4.4), a second base (4.5) and a first base (4.6) are respectively arranged in the middle of the round bases, vertical through holes penetrating through the bases are respectively arranged, the second base (4.5) are fixed on the upper surface of the third base (4.4) through the bolt fastener, a plurality of gaps are respectively arranged between the first base (4.4) and the fourth base (4.4) and a plurality of annular base (4) through a plurality of gaps are respectively arranged between the fourth base (4.4) and a plurality of annular base (4), the fifth base (4.1) and the fourth base (4.2) are connected through an annular connecting plate, an overflow port (8) is arranged on the outer circular surface of the annular connecting plate, the overflow port (8) adopts a single volute involute overflow port, the fifth base (4.1), the fourth base (4.2), the annular connecting plate and the overflow port (8) jointly form a single volute-shaped structure, a driving device is combined on the first base (4.6) through a connecting bolt, the driving device is arranged in a vertical perforation in the middle part of the circular base, a barrel (2) is connected with the lower part of the fifth base (4.1) through a bolt fastener, an upper machine body (4) is connected with a sorting groove through a reducer pipe, the sorting groove comprises a sorting groove body (12), an electric poppet valve assembly (11) and a circulating pump (15), the sorting tank body (12) adopts a single volute-shaped structure, the sorting tank body (12) is divided into an upper cavity and a lower cavity by a baffle plate with holes, all parts of the inner surface of the cavities, which are contacted with slurry, are adhered with wear-resistant rubber, slurry inlets (10) and upper discharge ports (13) are arranged on the outer circular surface of the upper cavity at intervals, lower discharge ports (16) are arranged on the outer circular surface of the lower cavity, the lower end of a lifting valve rod of the electric lifting valve assembly (11) penetrates through the holes on the baffle plate to extend downwards to be connected with a cone with a cambered surface structure, the slurry inlets (10) are connected with overflow ports (8) on the outer circular surface of the lower part of the upper machine body (4) through reducing pipes, the upper discharge port (13) is connected with the hydrocyclone of the process equipment through a process pipeline, the lower discharge port (16) is connected with the circulating pump (15) through an inlet pipeline of the circulating pump (15), and a discharge port (14) of the circulating pump (15) is connected with a return port (9) on the side wall of the lower part of the cylinder body (2) through an outlet pipeline.
2. The novel vertical type stirring mill according to claim 1, wherein: barrel (2) are cylindrical, are equipped with the opening on the outer disc of barrel (2), are equipped with mill door (1) in the opening part articulatedly, mill door (1) 0~120 free rotation of relative barrel (2), mill door (1) internal surface be the cambered surface, and the cambered surface of mill door (1) internal surface constitutes complete cylinder internal surface with the internal surface of barrel (2), all is equipped with the welt on the internal surface of mill door (1) and the internal surface of barrel (2), installs sealed pad at the flange faying surface of mill door (1) and barrel (2).
3. The novel vertical type stirring mill according to claim 2, wherein: the driving device comprises a main motor (6) and a speed reducer (7), wherein the main motor (6) and the speed reducer (7) are connected through a coupler, the main motor (6) is arranged above the speed reducer (7), and the speed reducer (7) is combined on the upper surface of the first base (4.6) through a bolt fastener.
4. A novel vertical mixer mill according to claim 3, characterized in that: the transmission device comprises an upper main shaft (5), a locking disc outer sleeve (18), an expansion sleeve, a spherical roller thrust bearing (19), a self-aligning bearing (20), a sliding bearing (21) and a lubrication sealing device are sequentially sleeved on the upper main shaft (5) from top to bottom, the upper end of the locking disc outer sleeve (18) is connected with a speed reducer (7) through a coupler, the self-aligning bearing (20) is arranged between the vertical through holes of the upper main shaft (5) and a third base (4.4), the sliding bearing (21) is arranged between the vertical through holes of the upper main shaft (5) and a fourth base (4.2), a convex end face key (5.1) is arranged at the lower end of the upper main shaft (5), and the upper main shaft (5) is connected with a spiral stirrer (3) through the convex end face key (5.1) and a bolt fastener.
5. The novel vertical type stirring mill according to claim 4, wherein: spiral agitator (3) are including cylindrical transmission shaft (3.1), spiral layer board (3.2), spiral welt (3.3), wear-resisting anticorrosive coating, the welding has spiral layer board (3.2) that are the heliciform and coil on the periphery of transmission shaft (3.1), laminating has spiral welt (3.3) rather than coiling the shape unanimous at spiral layer board (3.2) upper surface, pass through bolted connection between spiral layer board (3.2) and spiral welt (3.3), outside at transmission shaft (3.1), spiral layer board (3.2) all is equipped with the anticorrosive coating, transmission shaft (3.1) upper end is connected with upper portion main shaft (5) through protruding terminal surface key (5.1) and bolt fastener.
6. The novel vertical type stirring mill according to claim 2, wherein: the inlet pipeline of the circulating pump (15) is a seamless welded steel pipe, the lining is made of wear-resistant rubber, a wear-resistant stop valve is arranged on the inlet pipeline, and the outlet pipeline of the circulating pump (15) is a rubber pipe.
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| CN109967172A (en) * | 2019-04-16 | 2019-07-05 | 东莞市琅菱机械有限公司 | A kind of grinding rotor and the grinder including the grinding rotor |
| CN110237925A (en) * | 2019-06-24 | 2019-09-17 | 北方重工富勒（沈阳）矿业有限公司 | A kind of tower grinding machine grading plant |
| CN111420780B (en) * | 2020-01-15 | 2022-03-01 | 厦门艾思欧标准砂有限公司 | Grinding and shaping method of vertical grinding machine |
| CN111715354B (en) * | 2020-05-15 | 2022-02-15 | 洛阳矿山机械工程设计研究院有限责任公司 | Online detection device and detection method for abrasion of lining plate of vertical stirring mill |
| CN113070133A (en) * | 2021-04-07 | 2021-07-06 | 江西理工大学 | Ore discharge end overflow weir controller capable of improving filling rate of ceramic balls of overflow ball mill |
| CN114700150A (en) * | 2022-04-27 | 2022-07-05 | 北方重工富勒（沈阳）矿业有限公司 | Tower mill, design method and control method of tower mill |
| CN116477973B (en) * | 2023-04-28 | 2024-07-02 | 哈尔滨工业大学 | Multi-stage intelligent comprehensive utilization device for quality-dividing rotten fruits |
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