CN109277146B - Sand making machine with vertical mill - Google Patents
Sand making machine with vertical mill Download PDFInfo
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- CN109277146B CN109277146B CN201810047033.XA CN201810047033A CN109277146B CN 109277146 B CN109277146 B CN 109277146B CN 201810047033 A CN201810047033 A CN 201810047033A CN 109277146 B CN109277146 B CN 109277146B
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- plate
- making machine
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- 239000004576 sand Substances 0.000 title claims abstract description 42
- 238000000227 grinding Methods 0.000 claims abstract description 109
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- 238000003801 milling Methods 0.000 claims abstract description 5
- 230000008093 supporting effect Effects 0.000 claims description 28
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000005461 lubrication Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/003—Shape or construction of discs or rings
-
- 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
- B02C15/004—Shape or construction of rollers or balls
-
- 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
- B02C15/10—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by other means than a centrally-arranged member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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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
- B02C2015/008—Roller drive arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of industrial sand making equipment, in particular to a vertical mill sand making machine, which is characterized in that: the transmission device comprises a motor, a coupler and a speed reducer; the horizontal input shaft hole of the speed reducer is connected with the output shaft of the motor by adopting a coupler; a vertical output shaft of the speed reducer is connected with a rotary table; the grinding device comprises a grinding roller, a rotating arm and a grinding disc; the turntable is used for fixing a turntable in the milling device; the pressurizing device is fixed on the ground, and the working end of the pressurizing device is rotationally connected with the grinding roller in the grinding device; the limiting device is arranged on the periphery of the transmission device, and the inclined arm of the limiting device is bolted with the rotating arm of the grinding device. Compared with the prior art, the invention has the advantages of high grinding efficiency, low power consumption, high sand yield, large feeding granularity, smooth sand mould particles, simple equipment process flow, small occupied area, low noise, small dust emission, simple use and maintenance, low running cost and low wear-resistant material consumption.
Description
Technical Field
The invention relates to the technical field of industrial sand making equipment, in particular to a vertical mill sand making machine.
Background
The most popular machine-made sand production equipment in China mainly adopts the technology of a vertical impact crusher of the Meizuo VS1 series, and the working principle is as follows: the material falls into the feed hopper, enters the rotor rotating at high speed through the central feed hole, is fully accelerated and is thrown out through the emission port, firstly collides with a part of freely falling material after rebound, then is impacted onto a vortex-shaped material lining or a counterattack block in a surrounding vortex cavity, firstly is rebounded to the top of the crushing cavity, then moves downwards in a deflection mode, collides with the material emitted from the impeller runner to form a continuous material curtain, and finally is discharged through the lower discharge port. However, the vertical impact crusher has a plurality of defects which cannot be improved, such as high unit energy consumption of finished sand, low sand yield, short service life of vulnerable parts, low equipment operation rate and high operation cost. Based on the above technical drawbacks, the vertical impact crusher must be replaced by a vertical mill sand making machine of a more advanced grinding and crushing mechanism.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a vertical mill sand making machine which replaces the traditional vertical impact crusher, so that the production efficiency is higher, the unit energy consumption is reduced, the sand yield is doubled, the service life of vulnerable parts is prolonged, and the utilization rate of equipment is obviously improved.
In order to achieve the above purpose, a vertical mill sand making machine is designed, which is characterized in that:
Comprises a transmission device, a grinding device, a pressurizing device, a limiting device, a feeding device, a lower shell and a discharging device;
The transmission device comprises a motor, a coupler and a speed reducer; the horizontal input shaft hole of the speed reducer is connected with the output shaft of the motor by adopting a coupler; the vertical output shaft of the speed reducer is connected with a rotary table in a shaft way;
The feeding device comprises a crushing cylinder and a feeding hopper which is placed at the inner top of the crushing cylinder, and a crushing cavity is formed in a gap between the feeding hopper and the cylinder wall of the crushing cylinder; the wall of the crushing cylinder is provided with grinding roller holes;
The lower shell is fixed at the bottom of the crushing cylinder, and an annular groove with an upward notch is formed in the bottom edge of the lower shell;
The discharging device is arranged on the bottom surface of the annular groove of the lower shell;
The limiting device is arranged on the periphery of the transmission device and comprises a supporting base, an elastic device, an inclined supporting column with one end provided with a ball head, a right-angle connecting plate and an inclined arm; the elastic device comprises an elastic cylinder, a telescopic column, a spring and a bottom plate fixed at the bottom end of the elastic cylinder; the inner surface of the bottom plate is provided with a counter bore, one end of the telescopic column is embedded in the counter bore, the other end of the telescopic column penetrates through the top surface of the elastic cylinder, a pressing plate is radially fixed outside the telescopic column positioned in the elastic cylinder, and a spring is sleeved on the telescopic column between the pressing plate and the bottom plate; the top surface of the supporting base is an inclined surface with high outer side and low inner side, the bottom surface of the bottom plate of the elastic device is fixed on the inclined surface, the top end of the telescopic column is abutted against the ball head of the inclined supporting column, the other end of the inclined supporting column is fixed with the end part of a straight plate in the right-angle connecting plate, and the outer side surface of the other straight plate of the right-angle connecting plate parallel to the inclined supporting column is connected with one end of the inclined arm;
The grinding device comprises a grinding roller, a rotating arm and a grinding disc, wherein the grinding disc comprises a disc surface provided with a baffle plate and a hub part arranged below the disc surface, at least the disc surface of the grinding disc is positioned above an annular groove in the lower shell, and a baffle plate is arranged between the top of the outer side wall of the baffle plate of the grinding disc and the inner wall of the lower shell; a lining plate is fixed on the upper surface of the grinding disc; after passing through an annular hole formed by encircling an annular groove of the lower shell, the hub part of the grinding disc is positioned below the lower shell and fixedly connected with the turntable; one end of the grinding roller is sleeved with a roller sleeve with the outer surface being in a circular arc shape, the other end of the grinding roller is vertically connected with one end of a rotating arm, and a kidney-shaped hole is formed in the other end of the rotating arm along the length direction of the rotating arm;
The other end of the inclined arm of the limiting device penetrates through the top surface of the protecting cover and is then bolted with a waist-shaped hole of a rotating arm of the milling device through a pin; the two ends of the pin are connected to the top surface of the protective cover by adopting shaft trunnions;
The pressurizing device is fixed on the ground and comprises a reciprocating telescopic driving device provided with a telescopic rod, and the working end of the telescopic rod is rotationally connected with the outer side wall of one end of a connecting arm of the grinding device;
When the pressurizing device drives the grinding roller to rotate inwards, the rotating arm rotates around the pin, the roller sleeve passes through the grinding roller hole and then is positioned above the grinding disc, a gap is reserved between the roller sleeve and the lining plate, and the upper surface of the lining plate is set to be a cambered surface which is matched with the shape of the outer surface of the roller sleeve; the grinding roller is inclined with the outer end higher and the inner end lower; the upper surface of the flange of the grinding disc is fixedly provided with a material blocking ring, so that the free end of the material blocking ring is contacted with the roller sleeve.
The grinding devices are uniformly distributed along the circumference of the crushing cylinder, and each grinding device is correspondingly provided with a pressurizing device; the motor is positioned between any two adjacent pressurizing devices.
The upper and lower sides of the pressing plate of the elastic device are respectively provided with a wear-resistant lining, and a separation plate is arranged between the wear-resistant lining and the spring.
A scraping plate is detachably assembled on the bottom surface of the disc surface of the millstone above the annular groove of the lower shell.
And the shell wall of the lower shell corresponding to the scraping plate is provided with an access hole, and the access hole upper cover is provided with an access hole cover plate.
Another gap is arranged between the top of the inner side groove wall of the annular groove of the lower shell and the outer wall of the hub part of the grinding disc, and a rubber ring is arranged at the top of the inner side groove wall of the annular groove to block the another gap.
Wedge rings are nested between the roller sleeve and the grinding roller.
The outer side wall of the protective cover is provided with a through hole; the pressurizing device is provided with a fixing seat, the fixing seat is positioned at the outer side of the protective cover, the fixing seat is inclined with the outer side low and the inner side high, the inner side top end of the fixing seat is connected with one end of a supporting rod, and the other end of the supporting rod penetrates through the through hole and then is connected with the near bottom end of the inclined arm to assist in supporting the inclined arm.
The inner walls of the lower shell, which are positioned at the upper and lower parts of the partition plate, are respectively detachably provided with polyurethane wear-resistant ring liners.
The transmission device is provided with a lubrication system, the lubrication system adopts an oil station for supplying oil, and the lubrication system is provided with an oil pressure automatic protection system.
Compared with the prior art, the invention has the advantages of high grinding efficiency, low power consumption, high sand yield, large feeding granularity, smooth sand mould particles, simple equipment process flow, small occupied area, low noise, small dust emission, simple use and maintenance, low running cost and low wear-resistant material consumption.
Drawings
Fig. 1 is an isometric view of a vertical mill sand making machine of the present invention.
Fig. 2 is a top view of a vertical mill sand making machine of the present invention.
Fig. 3 is a schematic structural view of a vertical mill sand making machine according to the present invention.
Fig. 4 is an enlarged view of a portion of the crushing chamber structure formed by the grinding disc and the grinding roll shown in fig. 5.
Fig. 5 is a schematic structural view of the discharging device and the lower housing in the present invention.
Fig. 6 is a schematic perspective view of the present invention.
Fig. 7 is a block diagram of the stop device of the present invention with the bevel arm removed.
Fig. 8 is a cross-sectional view of the elastic means in the present invention.
Fig. 9 is a cross-sectional view of a grinding disc in the present invention.
Fig. 10 is a schematic view of the structure of the transmission device in the present invention.
Detailed Description
The invention will now be further described with reference to the drawings and examples.
Example 1
Referring to fig. 1 to 10, a vertical mill sand making machine is characterized in that:
comprises a transmission device 1, a milling device 2, a pressurizing device 3, a limiting device 4, a feeding device 5, a lower shell 7 and a discharging device 6;
the transmission device 1 comprises a motor 1-1, a coupler 1-2 and a speed reducer 1-3; the horizontal input shaft hole of the speed reducer 1-3 is internally connected with the output shaft of the motor 1-1 by adopting a coupler 1-2; the vertical output shaft of the speed reducer 1-3 is connected with a rotary disc 1-31 in a shaft way; the transmission device is provided with a lubrication system, the lubrication system adopts an oil station 17 for supplying oil, and the lubrication system is provided with an oil pressure automatic protection system;
The feeding device 5 comprises a crushing cylinder 5-1, a feeding hopper 5-2 which is placed at the inner top of the crushing cylinder 5-1, and a crushing cavity is formed by a gap between the feeding hopper 5-2 and the cylinder wall of the crushing cylinder 5-1; the wall of the crushing cylinder 5-1 is provided with a grinding roller hole 5-3;
the lower shell 7 is fixed at the bottom of the crushing cylinder 5-1, and an annular groove 7-1 with an upward notch is formed in the bottom edge of the lower shell 7;
The discharging device 6 is arranged on the bottom surface of the annular groove 7-1 of the lower shell 7;
The limiting device 4 is arranged on the periphery of the transmission device 1 and comprises a supporting base 4-1, an elastic device 4-2, an inclined supporting column 4-3 with a ball head at one end, a right-angle connecting plate 4-4 and an inclined arm 4-5; the elastic device 4-2 comprises an elastic cylinder 4-21, a telescopic column 4-22, a spring 4-24 and a bottom plate 4-27 fixed at the bottom end of the elastic cylinder 4-21; the inner surface of the bottom plate 4-27 is provided with a counter bore, one end of the telescopic column 4-22 is embedded in the counter bore, the other end of the telescopic column penetrates through the top surface of the elastic cylinder 4-21, the outer edge of the telescopic column 4-22 positioned in the elastic cylinder 4-21 is radially fixed with a pressing plate 4-23, and a spring 4-24 is sleeved on the telescopic column 4-22 between the pressing plate 4-23 and the bottom plate 4-27; the top surface of the supporting base 4-1 is an inclined surface with high outer side and low inner side, the bottom surface of the bottom plate 4-27 of the elastic device 4-2 is fixed on the inclined surface, the top end of the telescopic column 4-22 is abutted against the ball head of the inclined supporting column 4-3, the other end of the inclined supporting column 4-3 is fixed with the end part of a straight plate in the right-angle connecting plate 4-4, and the outer side surface of the other straight plate of the right-angle connecting plate 4-4 parallel to the inclined supporting column 4-3 is connected with one end of the inclined arm 4-5;
The grinding device 2 comprises a grinding roller 2-2, a rotating arm 2-7 and a grinding disc 2-1, wherein the grinding disc 2-1 comprises a disc surface provided with a baffle plate and a hub part arranged below the disc surface, at least the disc surface of the grinding disc 2-1 is positioned above an annular groove 7-1 in a lower shell 7, and a baffle plate 2-10 is arranged between the top of the outer side wall of the baffle plate of the disc surface of the grinding disc 2-1 and the inner wall of the lower shell 7; the upper surface of the grinding disc 2-1 is fixed with a lining plate 2-3; after passing through an annular hole formed by encircling an annular groove 7-1 of the lower shell 7, the hub part of the grinding disc 2-1 is positioned below the lower shell 7 and fixedly connected with the rotary disc 1-31; one end of the grinding roller 2-2 is sleeved with a roller sleeve 2-4 with the outer surface being in a circular arc shape, the other end of the grinding roller 2-2 is vertically connected with one end of a rotating arm 2-7, and a waist-shaped hole is formed in the other end of the rotating arm 2-7 along the length direction of the rotating arm;
The limiting device 4 is also provided with a protective cover 4-6, and the other end of the inclined arm 4-5 of the limiting device 4 penetrates through the top surface of the protective cover 4-6 and is then bolted with a waist-shaped hole of the rotating arm 2-7 of the grinding device 2 by adopting a pin 4-7; the two ends of the pin 4-7 are connected with the top surface of the protective cover 4-6 by adopting shaft trunnions;
The pressurizing device 3 is fixed on the ground and comprises a reciprocating telescopic driving device provided with a telescopic rod, and the working end of the telescopic rod is rotationally connected with the outer side wall of one end of a rotating arm 2-7 of the grinding device 2; in the embodiment, the reciprocating telescopic driving device adopts a hydraulic cylinder, the pressurizing device adopts a hydraulic or manual control system to apply and control the pressure of the pressurizing device to the materials, and the pressure can be adjusted according to the change of the grindability of the materials, so that the vertical mill sand making machine can be kept to operate under the most economical condition;
When the pressurizing device 3 drives the grinding roller 2-2 to rotate inwards, the rotating arm 2-7 rotates around the pin 4-7, the roller sleeve 2-4 passes through the grinding roller hole 5-3 and then is positioned above the grinding disc 2-1, a gap is reserved between the roller sleeve 2-4 and the lining plate 2-3, and the upper surface of the lining plate 2-3 is set to be a cambered surface which is matched with the shape of the outer surface of the roller sleeve 2-4; the grinding roller 2-2 is inclined with the outer end higher and the inner end lower; the upper surface of the flange of the grinding disc 2-1 is fixedly provided with a material blocking ring 2-6, so that the free end of the material blocking ring 2-6 is contacted with the roller sleeve 2-4.
When the invention works, the roller sleeve 2-4 is positioned above the grinding disc 2-1, under the supporting action of the pressurizing device 3, the inclined grinding roller 2-2 applies a pressure to the roller sleeve 2-4 obliquely downwards, the rotary disc 1-31 is driven by the motor 1-1 to rotate after being regulated by the speed reducer 1-3, and the rotary disc 1-31 drives the grinding disc 2-1 to rotate, so that the grinding disc 2-1 makes relative rotation movement relative to the roller sleeve 2-4, and the materials between the roller sleeve 2-4 and the lining plate 2-3 are rolled, thereby realizing lamination grinding.
In the invention, the pressurizing device 3 has larger elasticity due to the buffer function of the energy accumulator when in work, can automatically adjust the pressure exerted by the hydraulic cylinder, and can jump up and over-hard objects when encountering large and hard sundries, thereby avoiding damage to grinding parts and transmission devices due to overlarge load.
The rotating arm 2-7 rotates outwards around the limiting device 4, so that the vertical mill sand making machine can be started in an idle state, a gap between the grinding roller 2-4 and the grinding disc 2-1 can be adjusted by adjusting the position of the grinding roller in the kidney-shaped hole, the stable material layer thickness is ensured, the grinding efficiency is improved, the grinding roller 2-4 and the grinding disc 2-1 are not in direct contact under abnormal conditions such as material breaking, vibration of the vertical mill sand making machine is avoided, and the speed reducer 1-1 is protected. Meanwhile, the dry grinding of the grinding roller 2-4 and the lining plate 2-3 of the grinding disc is avoided, the abrasion of the grinding roller 2-1 and the lining plate 2-3 of the grinding disc is reduced, and the service lives of the grinding roller and the lining plate are prolonged.
The grinding roller adopts two sets of self-aligning roller bearings, the sealing cavity of the self-aligning roller bearings extends out of the crushing cylinder and is not contacted with dust-containing gas, and the self-aligning roller bearings of the grinding roller can not enter ash by using simple packing seal. According to the invention, the two ends of the grinding roller 2-2 can be replaced and used, so that the service life is prolonged.
The motor 1-1 adopts a variable frequency motor to realize speed regulation, and the retention time of materials in a grinding area is controlled by adjusting the rotating speed of the grinding disc 2-1, so as to control the fineness of the finished sand and the sand yield. The speed reducer 1-3 has the advantages of small volume, light weight, large speed reduction ratio, high transmission efficiency and the like. The grinding device 2 enables crushed materials to form a material bed with uniform and stable thickness on the grinding disc 2-1.
In order to enable the flow passage of the crushing cavity to be smoother, the vertical mill wind ring of the original vertical impact crusher is removed during design, so that the height of the material blocking ring 2-6 is reduced, the blanking is smoother, meanwhile, the installation inclination angle of the mill roller 2-2 is changed, a rough breaking area is formed from the central axis of the roller sleeve 2-4 to the centripetal side area of the roller sleeve, a fine breaking area is formed between the central axis of the roller sleeve 2-4 and the flange of the mill 2-1, and the rough breaking area and the fine breaking area are obviously beneficial to improving the sand making capacity of equipment.
The transmission device 1 is positioned at the lower part of the whole vertical mill sand making machine, not only drives the millstone 2-1 to rotate, but also bears the weight of the millstone, materials and the millstone roller and the milling pressure applied by the pressurizing device.
The grinding disc 2-1 is disc-shaped, and because materials wear the grinding disc and the grinding roller to a certain extent during operation, the grinding disc is provided with a replaceable lining plate 2-3, the grinding roller 2-2 is provided with a tire-shaped replaceable roller sleeve 2-4, and the roller sleeve 2-4 can turn around for use after being worn to a certain extent, so that the service life of the grinding roller is prolonged.
The materials of the roller sleeve 2-4 and the lining plate 2-3 are high chromium alloy materials or surfacing materials: and a TB2106 high-stress resistant welding rod is adopted, the hardness reaches HRC60+/-3, and the wear resistance is strong.
Further, 3 grinding devices 2 are uniformly distributed along the circumference of the crushing cylinder 5-1, and each grinding device 2 is correspondingly provided with a pressurizing device; the motor 1-1 is located between any adjacent two pressurizing means, see fig. 2.
Further, wear-resistant liners 4-25 are respectively arranged on the upper side and the lower side of the pressing plate 4-23 of the elastic device 4-2, and a separation plate 4-26 is arranged between the wear-resistant liners 4-25 and the springs 4-24.
Further, a scraping plate 2-5 is detachably assembled on the bottom surface of the disc 2-1 above the annular groove 7-1 of the lower shell 7.
Further, the shell wall of the lower shell 7 corresponding to the scraping plate 2-5 is provided with an access hole, and the upper cover of the access hole is provided with an access hole cover plate. When the scraping plate is worn, the overhaul hole of the lower shell can be opened to adjust or replace the scraping plate.
Further, another gap is arranged between the top of the inner side groove wall of the annular groove 7-1 of the lower shell 7 and the outer wall of the hub part of the grinding disc 2-1, and the rubber ring 2-9 is arranged at the top of the inner side groove wall of the annular groove 7-1 to block the another gap.
Further, a wedge-shaped ring 2-8 is nested between the roller sleeve 2-4 and the grinding roller 2-2. The grinding roller 2-2 is obliquely arranged, the wedge-shaped ring 2-8 is tightly pressed, and the roller sleeve 2-4 is convenient to replace.
Further, through holes are formed in the outer side walls of the protective covers 4-6; the pressurizing device 3 is provided with a fixed seat 3-1, the fixed seat 3-1 is positioned at the outer side of the protective cover 4-6, the fixed seat 3-1 is inclined with the outer side low and the inner side high, the inner side top end of the fixed seat 3-1 is connected with one end of a supporting rod 3-2, and the other end of the supporting rod 3-2 penetrates through the through hole and then is connected with the near bottom end of the inclined arm 4-5 to assist in supporting the inclined arm 4-5.
Further, the inner walls of the lower shell 7 positioned above and below the partition plates 2-10 are respectively detachably provided with polyurethane wear-resistant ring liners 9. The discharge gate size of the sand making machine of the vertical mill is big enough, because there is a large amount of sand to discharge through the discharge apparatus 6 of the lower shell 7, put forward higher requirement to the wearability of the lower shell 7 in this example, increase polyurethane wear-resisting ring lining 9 on the lower shell 7, carry on the anti-wear protection to the lower shell 7, lengthen the whole life-span of the complete machine, this material makes the unloading more smooth and easy at the same time.
Furthermore, the transmission device is provided with a lubrication system, the lubrication system adopts an oil station 17 for oil supply, and the lubrication system is provided with an oil pressure automatic protection system, so that the whole device works safely and reliably.
In addition, the feeding hopper 5-2 and the discharging device 6 of the vertical mill sand making machine are additionally provided with the fully-sealed dust removing device, so that the whole working cavity of the vertical mill sand making machine is in a micro negative pressure state, and dust raising and powder emission are avoided.
Claims (10)
1. A vertical mill sand making machine is characterized in that:
comprises a transmission device (1), a milling device (2), a pressurizing device (3), a limiting device (4), a feeding device (5), a lower shell (7) and a discharging device (6);
The transmission device (1) comprises a motor (1-1), a coupler (1-2) and a speed reducer (1-3); the horizontal input shaft hole of the speed reducer (1-3) is internally connected with the output shaft of the motor (1-1) by adopting a coupler (1-2); a vertical output shaft of the speed reducer (1-3) is connected with a rotating disc (1-31) in a shaft way;
The feeding device (5) comprises a crushing cylinder (5-1), a feeding hopper (5-2) arranged at the inner top of the crushing cylinder (5-1), and a crushing cavity is formed in a gap between the feeding hopper (5-2) and the cylinder wall of the crushing cylinder (5-1); the wall of the crushing cylinder (5-1) is provided with a grinding roller hole (5-3);
The lower shell (7) is fixed at the bottom of the crushing cylinder (5-1), and an annular groove (7-1) with an upward notch is formed in the bottom edge of the lower shell (7);
the discharging device (6) is arranged on the bottom surface of the annular groove (7-1) of the lower shell (7);
The limiting device (4) is arranged on the periphery of the transmission device (1) and comprises a supporting base (4-1), an elastic device (4-2), an inclined supporting column (4-3) with a ball head at one end, a right-angle connecting plate (4-4) and an inclined arm (4-5); the elastic device (4-2) comprises an elastic cylinder (4-21), a telescopic column (4-22), a spring (4-24) and a bottom plate (4-27) fixed at the bottom end of the elastic cylinder (4-21); the inner surface of the bottom plate (4-27) is provided with a counter bore, one end of the telescopic column (4-22) is embedded in the counter bore, the other end of the telescopic column penetrates through the top surface of the elastic cylinder (4-21), the outer edge of the telescopic column (4-22) positioned in the elastic cylinder (4-21) is fixedly provided with a pressing plate (4-23) along the radial direction of the telescopic column, and a spring (4-24) is sleeved on the telescopic column (4-22) between the pressing plate (4-23) and the bottom plate (4-27); the top surface of the supporting base (4-1) is an inclined surface with high outer side and low inner side, the inclined surface is fixedly provided with the bottom surface of a bottom plate (4-27) of the elastic device (4-2), the top end of the telescopic column (4-22) is abutted against the ball head of the inclined supporting column (4-3), the other end of the inclined supporting column (4-3) is fixedly provided with the end part of a straight plate in the right-angle connecting plate (4-4), and the outer side surface of the other straight plate of the right-angle connecting plate (4-4) parallel to the inclined supporting column (4-3) is connected with one end of the inclined arm (4-5);
The grinding device (2) comprises a grinding roller (2-2), a rotating arm (2-7) and a grinding disc (2-1), wherein the grinding disc (2-1) comprises a disc surface provided with a baffle and a hub part arranged below the disc surface, at least the disc surface of the grinding disc (2-1) is positioned above an annular groove (7-1) in the lower shell (7), and a baffle (2-10) is arranged between the top of the outer side wall of the baffle of the disc surface of the grinding disc (2-1) and the inner wall of the lower shell (7); the upper surface of the grinding disc (2-1) is fixed with a lining plate (2-3); after passing through an annular hole formed by encircling an annular groove (7-1) of the lower shell (7), the hub part of the grinding disc (2-1) is positioned below the lower shell (7) and fixedly connected with the rotary disc (1-31); one end of the grinding roller (2-2) is sleeved with a roller sleeve (2-4) with the outer surface being in a circular arc shape, the other end of the grinding roller (2-2) is vertically connected with one end of a rotating arm (2-7), and a waist-shaped hole is formed in the other end of the rotating arm (2-7) along the length direction of the rotating arm;
The limiting device (4) is also provided with a protective cover (4-6), and the other end of the inclined arm (4-5) of the limiting device (4) penetrates through the top surface of the protective cover (4-6) and is then bolted with a waist-shaped hole of the rotating arm (2-7) of the grinding device (2) through a pin (4-7); the two ends of the pin (4-7) are connected with the top surface of the protective cover (4-6) by adopting shaft trunnions;
The pressurizing device (3) is fixed on the ground and comprises a reciprocating telescopic driving device provided with a telescopic rod, and the working end of the telescopic rod is rotationally connected with the outer side wall of one end of a rotating arm (2-7) of the grinding device (2);
When the pressurizing device (3) drives the grinding roller (2-2) to rotate inwards, the rotating arm (2-7) rotates around the pin (4-7), the roller sleeve (2-4) passes through the grinding roller hole (5-3) and then is positioned above the grinding disc (2-1), a gap is reserved between the roller sleeve (2-4) and the lining plate (2-3), and the upper surface of the lining plate (2-3) is designed to be an arc surface which is matched with the shape of the outer surface of the roller sleeve (2-4); the grinding roller (2-2) is inclined with the outer end higher and the inner end lower; the upper surface of the flange of the grinding disc (2-1) is fixedly provided with a material blocking ring (2-6), so that the free end of the material blocking ring (2-6) is contacted with the roller sleeve (2-4).
2. A vertical mill sand making machine as claimed in claim 1, wherein: the grinding devices (2) are uniformly distributed along the circumference of the crushing cylinder (5-1), and each grinding device (2) is correspondingly provided with a pressurizing device; the motor (1-1) is positioned between any two adjacent pressurizing devices.
3. A vertical mill sand making machine as claimed in claim 1, wherein: wear-resistant liners (4-25) are respectively arranged on the upper side and the lower side of a pressing plate (4-23) of the elastic device (4-2), and a separation plate (4-26) is arranged between the wear-resistant liners (4-25) and the springs (4-24).
4. A vertical mill sand making machine as claimed in claim 1, wherein: the scraping plate (2-5) is detachably assembled on the bottom surface of the disc surface of the millstone (2-1) above the annular groove (7-1) of the lower shell (7).
5. A vertical mill sand making machine as defined in claim 4, wherein: and the shell wall of the lower shell (7) corresponding to the scraping plate (2-5) is provided with an access hole, and the upper cover of the access hole is provided with an access hole cover plate.
6. A vertical mill sand making machine as claimed in claim 1, wherein: another gap is arranged between the top of the inner side groove wall of the annular groove (7-1) of the lower shell (7) and the outer wall of the hub part of the grinding disc (2-1), and a rubber ring (2-9) is arranged at the top of the inner side groove wall of the annular groove (7-1) to block the another gap.
7. A vertical mill sand making machine as claimed in claim 1, wherein: wedge-shaped rings (2-8) are nested between the roller sleeve (2-4) and the grinding roller (2-2).
8. A vertical mill sand making machine as claimed in claim 1, wherein: the outer side wall of the protective cover (4-6) is provided with a through hole; the pressurizing device (3) is provided with a fixing seat (3-1), the fixing seat (3-1) is located at the outer side of the protective cover (4-6), the fixing seat (3-1) is inclined with the outer side low and the inner side high, the inner side top end of the fixing seat (3-1) is connected with one end of a supporting rod (3-2), and the other end of the supporting rod (3-2) penetrates through the through hole and then is connected with the near bottom end of the inclined arm (4-5) to assist in supporting the inclined arm (4-5).
9. A vertical mill sand making machine as claimed in claim 1, wherein: the inner walls of the lower shell (7) which are positioned above and below the partition boards (2-10) are respectively detachably provided with polyurethane wear-resistant ring linings (9).
10. A vertical mill sand making machine as claimed in claim 1, wherein: the transmission device is provided with a lubrication system, the lubrication system adopts an oil station (17) for oil supply, and the lubrication system is provided with an oil pressure automatic protection system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047033.XA CN109277146B (en) | 2018-01-18 | 2018-01-18 | Sand making machine with vertical mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047033.XA CN109277146B (en) | 2018-01-18 | 2018-01-18 | Sand making machine with vertical mill |
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| CN109277146B true CN109277146B (en) | 2024-06-07 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109833945A (en) * | 2019-03-19 | 2019-06-04 | 江苏振强机械科技股份有限公司 | A kind of abrasive disk type sand making machine |
| CN110433945A (en) * | 2019-08-31 | 2019-11-12 | 浙江瑞曼特机械装备有限公司 | Dry-method sand manufacturing equipment |
| CN110732382A (en) * | 2019-11-26 | 2020-01-31 | 天津水泥工业设计研究院有限公司 | machine-made sand vertical mill and production process system thereof |
| CN111570023A (en) * | 2020-05-26 | 2020-08-25 | 镇江市蓝火环保能源有限公司 | Energy-saving and environment-friendly pulverized coal production system |
| CN112156856A (en) * | 2020-10-13 | 2021-01-01 | 南京凯盛国际工程有限公司 | Vertical mill for sand making |
| CN112156853A (en) * | 2020-10-13 | 2021-01-01 | 南京凯盛国际工程有限公司 | Vertical grinding device for sand making |
| CN112156852A (en) * | 2020-10-13 | 2021-01-01 | 南京凯盛国际工程有限公司 | Vertical mill for producing machine-made sand |
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