CN222753402U - A vertical grinding machine - Google Patents
A vertical grinding machine Download PDFInfo
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- CN222753402U CN222753402U CN202421390666.8U CN202421390666U CN222753402U CN 222753402 U CN222753402 U CN 222753402U CN 202421390666 U CN202421390666 U CN 202421390666U CN 222753402 U CN222753402 U CN 222753402U
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Abstract
The utility model provides a vertical grinder. The vertical grinding machine comprises a base, a barrel, a grinding assembly and a plurality of pulp outlet devices, wherein a plurality of pulp outlet ports are formed in the side wall of the barrel along the circumferential direction, each pulp outlet port is correspondingly provided with one pulp outlet device, each pulp outlet device comprises a screen plate arranged in the corresponding pulp outlet port, a pulp storage box arranged on the side wall of the barrel, a flushing pipe arranged in the pulp storage box and a pulp outlet pipe connected to the bottom of the pulp storage box, the pulp outlet ports, the pulp storage box and the pulp outlet pipe are communicated, each pulp storage box comprises a box body with two open sides, one open side is arranged on the pulp outlet port, a box door cover is arranged at the opening of the other side, the top wall of the box body is provided with an observation door cover which is opened or closed in a hinged mode, and the pulp outlet pipe is connected to the bottom wall of the box body. The utility model greatly increases the pulp outlet area of the cylinder, meets the requirement of large yield and improves the discharging efficiency.
Description
Technical Field
The utility model relates to the technical field of mineral processing, in particular to a vertical grinding machine.
Background
In the mineral processing process, the raw ore is crushed to obtain small-particle materials, the small-particle materials are ground to obtain coarse powder, and then the coarse powder is further ground to obtain micron-sized ultrafine powder. Grinding of the ultrafine powder is generally achieved by a grinder.
The existing grinding machine is like the vertical wet ball mill disclosed in the prior patent publication No. CN105032563A, and comprises a motor, a speed reducer, a cylinder body and a base, wherein the base is arranged at the bottom of the cylinder body, a slurry outlet is arranged on the side wall of the cylinder body, and the motor drives a stirrer extending into the cylinder body to act. The pulp outlet is provided with a pulp outlet device, the pulp outlet device comprises a box body, pulp outlet stirring paddles and a sieve plate arranged on the side wall of the box body, and the sieve plate enables pulp to be filtered when entering the pulp outlet device.
The grinding machine has the following problems:
the structure of the pulp discharging device makes the pulp discharging area limited;
(II) the sieve plate is arranged in the box body, screening is carried out in the box body, and sand discharge is also carried out in the box body;
thirdly, the structure of the box body is inconvenient for manual investigation;
the structure of the fourth box is easy to cause coarse particles to block the sieve plate and the box.
Disclosure of utility model
The utility model aims to provide a vertical grinder which can increase the pulp outlet area and is convenient for manual investigation.
The vertical grinder comprises a base, a cylinder body arranged on the base, a grinding assembly rotationally arranged in the cylinder body and a plurality of slurry outlet devices, wherein a plurality of slurry outlet ports are formed in the side wall of the cylinder body Yang Zhouxiang, and each slurry outlet port is correspondingly provided with one slurry outlet device;
The pulp storage box comprises a box body with two open sides, wherein one open side is arranged on a pulp outlet, a box door cover is arranged at the open side of the other open side, an observation door cover which is opened or closed in a hinged mode is arranged on the top wall of the box body, and the pulp outlet pipe is connected to the bottom wall of the box body.
According to the scheme, the slurry outlet devices are circumferentially distributed on the cylinder body, so that the slurry outlet area of the cylinder body is greatly increased, the requirement of large yield is met, the discharging efficiency is improved, the sieve plate is not arranged in the box body any more, but is embedded in the slurry outlet, materials are sieved in the cylinder body and then enter the slurry storage box, and the top of the slurry storage box is provided with the observation door cover in a hinged mode, so that manual investigation is facilitated.
Preferably, a plurality of screen wires with triangular cross sections are arranged on the screen plate, and the vertexes of the triangular screen wires face the pulp storage box.
Preferably, the flush tube is positioned near the top of the headbox.
Preferably, the grinding assembly comprises a grinding shaft, grinding discs and a spacer bush, wherein the grinding shaft is vertically arranged in the cylinder body, the grinding discs are distributed on the grinding shaft at intervals, and the spacer bush is arranged between every two adjacent grinding discs.
Preferably, the grinding disc comprises a grinding sleeve, a plurality of grinding rods are circumferentially connected to the grinding sleeve, the grinding sleeve is sleeved on the grinding shaft, and the grinding rods extend in the radial direction of the grinding sleeve.
Preferably, the grinding rod comprises a first rod, a second rod and a stop screw, one end of the first rod is fixed on the grinding sleeve, the second rod is sleeved inside the other end of the first rod, an annular groove is formed in the second rod, and the stop screw is in threaded connection with the first rod and extends out of the annular groove.
Preferably, the second rod is a high-chromium composite alloy wear-resistant rod, and the stop screw is carbon steel or stainless steel.
Preferably, the surface of the base facing the cylinder is provided with a wear-resistant plate.
Preferably, a plurality of baffle plates are circumferentially arranged on the inner wall of the cylinder body, and the baffle plates are arranged on the side wall of the cylinder body through wear-resistant screws.
Compared with the related art, the utility model has the beneficial effects that:
1. The slurry outlet devices in the vertical grinding machine are circumferentially distributed on the cylinder body, so that the slurry outlet area of the cylinder body is greatly increased, the requirement of large yield is met, and the discharging efficiency is improved;
2. The sieve plate is not arranged in the box body any more, but is embedded in the pulp outlet, so that the materials are directly sieved in the cylinder body and then enter the pulp storage box;
3. The screen plate is provided with a plurality of screen wires with triangular cross sections, so that once materials pass through screen gaps among the triangular screen wires, the materials can flow away easily, the materials are prevented from being blocked in the screen gaps, the smooth slurry outlet is ensured, and the blockage is avoided;
4. The grinding rod adopts a two-section type mounting structure, and can be manufactured by processing a proper material, for example, the second rod adopts a high-chromium composite alloy material, so that the grinding rod has the characteristics of high hardness, good wear resistance and the like, and the wear resistance of the grinding rod can be improved.
Drawings
Fig. 1 is a schematic structural view of a vertical grinder according to the present utility model;
FIG. 2 is a schematic view of the internal structure of the vertical grinder provided by the utility model;
FIG. 3 is a schematic view of the arrangement of the slurry discharging device on the cylinder;
FIG. 4 is a schematic view of the installation of a single slurry discharge device on a cylinder;
FIG. 5 is a schematic plan view of a grinding apparatus;
FIG. 6 is an enlarged schematic view of FIG. 2 at A;
fig. 7 is a schematic structural view of a screen plate;
FIG. 8 is a schematic cross-sectional view taken along B-B in FIG. 7;
FIG. 9 is an enlarged schematic view at C in FIG. 8;
Fig. 10 is a schematic diagram of the baffle operating principle.
In the drawing, 1, a base, 11, a wear-resistant plate, 2, a cylinder, 21, a slurry outlet, 22, a ventilation opening, 23, an observation opening, 24, an overflow opening, 25, a feeding opening, 26, a sand discharge opening, 3, a grinding assembly, 31, a grinding shaft, 32, a grinding disc, 321, a grinding sleeve, 322, a grinding rod, 3221, a first rod, 3222, a second rod, 3223, a stop screw, 3224, a mounting hole, 32241, a waist edge, 32242, a side edge, 323, a locking round nut, 33, a spacer bush, 4, a slurry outlet device, 41, a sieve plate, 411, a screen wire, 42, a slurry storage box, 421, a box body, 422, a box door cover, 423, an observation door cover, 43, a flushing pipe, 44, a slurry outlet pipe, 5, a baffle plate, 6, a wear-resistant screw, 7, a motor, 8 and a speed reducer are arranged.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.
As shown in fig. 1 and 2, the vertical grinder provided in this embodiment includes a base 1, a cylinder 2, a grinding assembly 3, a slurry discharging device 4, a baffle plate 5, a wear-resistant screw 6, a seal ring 7, a motor 7 and a speed reducer 8.
The bottom of the cylinder body 2 is opened and is used for being installed on the base 1, and the side surface of the base 1 facing the cylinder body is provided with a wear-resistant plate 11. The base 1 is fixed on a concrete foundation through foundation bolts. The top wall of the cylinder body 2 is provided with a ventilation opening 22, and the side wall of the cylinder body 2 is provided with an observation opening 23 and an overflow opening 24. The cylinder 2 is provided with a feeding port 25 near the middle part and a sand discharge port 26 near the bottom. The sand discharge port 26 is used for discharging useless coarse particles in the cylinder 2.
As shown in fig. 2, the grinding assembly 3 includes a grinding shaft 31, a grinding disk 32, and a spacer 33. The speed reducer 8 and the motor 7 are mounted on the top wall of the cylinder 2. An output shaft of the speed reducer 8 is connected with the upper end of the grinding shaft 31 through a coupling. The grinding shaft 31 is vertically installed in the cylinder 2. The speed reducer 8 is mounted with a speed reducer base through a lower flange on the speed reducer 8, and the speed reducer base is fixed on the top wall of the cylinder 2.
As shown in fig. 2 and 3, a plurality of pulp discharging devices 4 are circumferentially arranged on the upper side wall of the cylinder 2. The grinding shaft 31 is provided with a plurality of grinding disks 32 at intervals at the lower end of the pulp discharging device 4. The spacer bush 33 is arranged between two adjacent grinding disks 32. The distance between the grinding disks 32 can be adjusted to be proper by selecting a spacer 33 with proper length, so that the stirring range of each layer of grinding disk 32 is not crossed as much as possible, and the ground materials are not backmixed and are not overground.
As shown in fig. 2 and 5, the polishing disc 32 includes a polishing sleeve 321, and a plurality of polishing rods 322 are circumferentially connected to the polishing sleeve 321. The grinding sleeve 321 is sleeved on the grinding shaft 31, and the grinding sleeve 321 on the grinding disc 32 at the bottom is a locking grinding sleeve which is locked in a matched manner through a locking round nut 323, so that the grinding shafts 31 on the plurality of grinding discs 32 are fixed.
The grinding rod 322 extends in the radial direction of the grinding sleeve 321, so that the speed of the outer line of the grinding disc 32 is high, the stirring kinetic energy is high, the grinding medium and the materials naturally form the distribution of the grinding medium in the axial rotation flow field under the action of centrifugal force, coarse particles are arranged on the outer edge of the grinding disc 32, and fine particles are arranged in the center of the grinding disc 32. Under the action of gravity, coarse particles are arranged below and fine particles are arranged above the coarse particles, so that the open laminar grinding characteristic is formed.
As shown in fig. 2, the grinding rod 322 includes a first rod 3221, a second rod 3222, and a set screw 3223. The second rod 3222 is a high chromium composite alloy wear resistant rod, and the set screw 3223 is carbon steel or stainless steel. One end of the first rod 3221 is fixed on the grinding sleeve 321 by welding, one end of the second rod 3222 is inserted into the other end of the first rod 3221, and the first rod and the second rod are connected through threads, and are fixed in a loose-proof manner through a stop screw 3223. As shown in fig. 6, the second rod 3222 is provided with a ring groove, the stop screw 3223 is screwed on the first rod 3221 and extends out of the ring groove, when the stop screw 3223 is clamped with the ring groove, the stable connection between the second rod 3222 and the first rod 3221 is realized, otherwise, when the stop screw 3223 is separated from the ring groove, the second rod 3222 is detachable.
In this embodiment, 2-8 layers of grinding discs 32 are disposed on the grinding shaft 31, and the grinding sleeve 321 is connected to the grinding shaft 31 by a flat key to transmit torque. Each layer of grinding disks 32 is provided with 4-8 grinding rods 322, and a set screw is provided between the second rod 3222 and the first rod 3221 for preventing loosening.
As shown in fig. 3 and 4, the sidewall of the cylinder 2 is provided with a plurality of slurry outlets 21 circumferentially, and each slurry outlet 21 is correspondingly provided with one slurry outlet device 4. The pulp outlet device 4 comprises a screen plate 41 arranged in the pulp outlet 21, a pulp storage tank 42 arranged on the side wall of the cylinder body 2, a flushing pipe 43 arranged inside the pulp storage tank 42 and a pulp outlet pipe 44 connected to the bottom of the pulp storage tank 42. The outlet 21, the tank 42 and the outlet pipe 44 are in communication.
The slurry storage tank 42 includes a tank body 421 with two open sides, wherein one open side is installed on the slurry outlet 21, and the other open side is provided with a door 422. The top wall of the case 421 is provided with a viewing door cover 423 that is opened or closed in a hinged manner. One end of the pulp outlet pipe 44 is annular on the outer wall of the cylinder 2, a branch pipe is arranged at the position corresponding to each pulp storage tank 42, the branch pipe is connected to the bottom wall of the tank 421, and the other end of the pulp outlet pipe 44 extends to the next process. The flushing pipe 43 is arranged near the top of the headbox 42.
In this embodiment, 3-8 pulp discharging devices 4 are arranged on the side wall of the cylinder 2, and the ground pulp flows out from the lower part of the pulp storage tank 42 after being screened by the screen plate 41, and flows to the pulp discharging pipe 44 to enter the next process.
As shown in fig. 7 and 8, a plurality of screen wires 411 with triangular cross sections are arranged on the screen plate 41, and the screen wires 411 extend transversely. As shown in fig. 9, the apex of the triangular screen wire 411 is disposed toward the headbox 42, so that the material once passing through the screen slot easily flows away, and is not stuck in the screen slot, ensuring smooth pulp discharge and no blockage.
As shown in fig. 10, a plurality of baffles 5 are circumferentially mounted on the inner wall of the cylinder 2, and the baffles 5 are mounted on the side wall of the cylinder 2 through wear-resistant screws 6. In the process of driving the grinding rod to rotate by the grinding disc 32, the grinding medium and the grinding material in the stirring cylinder 2 form a flow field, and the baffle plates 5 distributed circumferentially locally block the flow of the grinding material and the grinding medium to form local turbulence, so that the grinding medium and the grinding material perform relative motion, friction and the like, and the grinding material is ground finely.
When in use, crushed ore particles (less than 5 mm) are evenly and continuously fed into the cylinder 2 from the feed inlet 25 through the belt scale, or coarse slurry of coarse grinding equipment enters from the feed inlet 25. And simultaneously adding a certain proportion of water and grinding auxiliary agent. The motor 7 is started to rotate the grinding shaft 31 and the grinding disc 32 thereon, and the grinding rod 322 sufficiently grinds, impacts and shears the grinding medium and the ore particles in the cylinder 2, so that the ore particles are continuously ground. The finally ground slurry flows out of the slurry outlet device 4 and enters the next working procedure.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (9)
1. The vertical grinding machine comprises a base, a barrel arranged on the base, and a grinding component rotationally arranged in the barrel, and is characterized by further comprising a plurality of slurry outlet devices, wherein a plurality of slurry outlet ports are formed in the side wall of the barrel along the circumferential direction, and each slurry outlet port is correspondingly provided with one slurry outlet device;
The pulp storage box comprises a box body with two open sides, wherein one open side is arranged on a pulp outlet, a box door cover is arranged at the open side of the other open side, an observation door cover which is opened or closed in a hinged mode is arranged on the top wall of the box body, and the pulp outlet pipe is connected to the bottom wall of the box body.
2. The vertical mill according to claim 1, wherein a plurality of screen wires with triangular cross sections are arranged on the screen plate, and the vertexes of the screen wires of the triangle are arranged towards the pulp storage tank.
3. The vertical mill of claim 1 wherein the flush tube is disposed proximate the top of the headbox.
4. The vertical grinder of claim 1, wherein the grinding assembly comprises a grinding shaft, grinding disks and spacers, the grinding shaft is vertically arranged in the cylinder, the grinding disks are arranged on the grinding shaft at intervals, and the spacers are arranged between two adjacent grinding disks.
5. The vertical mill of claim 4 wherein the grinding pan comprises a grinding sleeve having a plurality of grinding bars circumferentially connected thereto, the grinding sleeve being sleeved on the grinding shaft, the grinding bars extending in a radial direction of the grinding sleeve.
6. The vertical grinder of claim 5, wherein the grinding rod comprises a first rod, a second rod and a stop screw, one end of the first rod is fixed on the grinding sleeve, the second rod is sleeved inside the other end of the first rod, an annular groove is formed in the second rod, and the stop screw is connected to the first rod in a threaded mode and protrudes towards the annular groove.
7. The vertical mill of claim 6 wherein the second rod is a high chromium composite alloy wear resistant rod and the set screw is carbon steel or stainless steel.
8. The vertical mill according to claim 1, characterized in that the surface of the base facing the cylinder is provided with wear plates.
9. The vertical mill according to claim 1, wherein a plurality of baffles are circumferentially mounted on the inner wall of the cylinder, the baffles being mounted on the side wall of the cylinder by wear screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421390666.8U CN222753402U (en) | 2024-06-18 | 2024-06-18 | A vertical grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421390666.8U CN222753402U (en) | 2024-06-18 | 2024-06-18 | A vertical grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222753402U true CN222753402U (en) | 2025-04-15 |
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ID=95321342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421390666.8U Active CN222753402U (en) | 2024-06-18 | 2024-06-18 | A vertical grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222753402U (en) |
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2024
- 2024-06-18 CN CN202421390666.8U patent/CN222753402U/en active Active
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