KR20200081669A - Comminution system and comminution method with automatic screening function of minerals - Google Patents

Abstract

The present invention relates to a pulverization system with an automatic screening function of minerals to prevent the internal wall surface of a pulverizer from being abraded and a pulverization method thereof. According to the present invention, the pulverization system comprises: a hopper (100) for inputting minerals; a transfer screw (320) receiving power of a motor (310) to be operated inside a transfer pipe (300) to transfer the minerals input through the hopper (100) to an inlet (110); the pulverizer (400) for receiving and pulverizing the minerals discharged from an outlet (350) of the transfer pipe (300); a discharge pipe (500) discharging the minerals pulverized in the pulverizer (400); a vertical transfer pipe (600) vertically installed and having a bucket (610) installed in a rotary body (620) to vertically transfer the minerals discharged through a discharge screw (510) of the discharge pipe (500); a guide pipe (630) connected to the vertical transfer pipe (600) to guide the minerals to a mesh sorter (700); and the mesh sorter (700) sorting the minerals guided through the guide pipe (630). Accordingly, the minerals sorted in the mesh sorter (700) are discharged through a complete product outlet (720) and the unsorted minerals are fed back to a feedback circulation pipe (710) to be re-input to the pulverizer (400) to be pulverized.

Description

Grinding system and grinding method with automatic sorting function of minerals{COMMINUTION SYSTEM AND COMMINUTION METHOD WITH AUTOMATIC SCREENING FUNCTION OF MINERALS}

The present invention relates to a crushing system and an crushing method having an automatic sorting function of minerals, and more preferably, to prevent the minerals flowing into the inlet of the conveyer from being loaded on the conveying screw and at the same time smoothly conveyed to the grinder during discharge. After crushing with minerals of uniform particle size, it is sorted and discharged through a mesh sorter, as well as a grinding system and a grinding method with automatic sorting function of minerals to feed the unsorted minerals back to the grinder for grinding. will be.

In general, welding is performed by arc welding, which is applied by applying a current between the welding rod and the base material, which results in high temperature due to the current, thereby melting the welding rod and joining the metal to each other. The same material as the welding base material is used, and the coating material is wrapped in this welding rod. This coating material generates gas at high temperature to prevent the invasion of oxygen or nitrogen in the air, and forms slag to oxidize, nitride, and quench the weld. It prevents deformation of the welded part and improves the fluidity of the welded metal and insulates the worker to prevent electric shock due to high voltage when welding in a narrow place.

On the other hand, as the above-mentioned coating material, a powder for minerals is used. The mineral is mainly titanium oxide contained in a titania raw material or a mixture, and the mineral is widely used as a raw material for welding materials. Besides that, titanium oxide. Minerals such as silicon dioxide, alumina, and calcium oxide are mixed and used.

As one of the techniques for pulverizing such minerals into fine powders, Patent No. 10-0862975 discloses a "multilayer cultivation welding method for manufacturing and repairing pulverizer pulverizing rolls and table liners".

As described in the prior art of the registered patent, the conventional pulverizer roll 104 or the table liner 105 has a cemented carbide welding material ( 102) is made by welding.

However, the manufacturing and maintenance structure of the conventional crushing roll and table liner is usually only suitable for up to 2 times after maintenance after completion of operation for 20,000 hours, and due to the welding method using a single-growth welding material, excessive welding amount of large diameter part is changed due to the condition change during welding. Accordingly, there is a high possibility of causing peeling due to the inferiority of the welding layer, and in particular, there is a problem in that it is impossible to extend the operating time to be used because the welding layer is easily broken and abrasive.

In addition, the pulverizing roll has no reference to a technique for preventing abrasion of the inner wall surface of the pulverizer.

In addition, according to the contents disclosed in Patent No. 10-1061205 as a crushing device for crushing minerals, in general, minerals quarryed using explosives such as dynamite in places such as mines are required by the user again using a grinder. It has a grinding process that grinds to the proper size.

And the crusher used in the crushing process includes a jaw crusher that crushes relatively large chunks of minerals, and a hammer crusher that crushes minerals crushed from the jaw crusher to a smaller size.

Among them, the hammer crusher is composed of a body, a rotor rotatably mounted inside the body (a rotating body disc), and a hammer mounted at a space on the outer surface of the rotor.

That is, the hammer crusher uses the rotational force of the hammer that works in conjunction with the rotor to insert the ore to be input, so that the ore has a particle size of a predetermined or less.

However, the hammer crusher has a problem in that the hammer for crushing the gemstone is integrally formed, and therefore, it is necessary to replace the hammer in case of damage due to the grinding of the gemstone.

The conventional hammer crusher hammer has a problem in that manufacturing cost and replacement cost are increased by frequent replacement when crushing ore according to the operation of the rotating force.

In addition, although the abrasiveness against the inner wall surface of the grinder is severe during the crushing operation, no technical configuration to protect the inner wall surface was found.

Republic of Korea Registered Patent No. 10-0862975 Republic of Korea Registered Patent No. 10-1061205

The present invention aims to solve the problems of shortening the service life due to abrasion of the inner wall surface of the grinder during the mineral crushing operation as described above.

In addition, an object of the present invention is to transfer minerals smoothly while simultaneously transporting minerals by not applying a load to a transfer screw driven inside the transfer pipe when transferring the minerals to the grinder.

In addition, an object of the present invention is to provide a crushing system and a crushing method having an automatic sorting function of minerals to improve the sorting by improving the crushing efficiency so that the mineral has a certain particle size in a short time.

In addition, the present invention has an object to reinforce the abrasion resistance as well as the strength of the hammer crushing the mineral.

The present invention for achieving the above object, a hopper for injecting minerals, and a transfer screw for driving the inside of the transfer pipe receiving the power of the motor to be transported by feeding the minerals injected into the hopper through the inlet , A pulverizer for introducing and pulverizing the mineral discharged from the discharge port of the transfer pipe, a discharge pipe for discharging the pulverized mineral from the pulverizer, and a rotating body to vertically transfer the mineral discharged through the discharge screw of the discharge pipe In the vertical transfer pipe made of a bucket is mounted on, and the induction pipe connected to the vertical transfer pipe to guide minerals into a mesh sorter, a mesh sorter to sort the minerals induced through the induction pipe, and from the mesh sorter It is characterized in that the selected minerals are discharged through the finished product outlet, and the unselected minerals are fed back to the feedback circulation pipe and re-entered into the grinder to be crushed.

In addition, the step of injecting the mineral through the inlet 110 to the front of the hopper, the step of discharging the mineral introduced through the inlet into the interior of the grinder through the transfer pipe, and the crushing operation of the mineral introduced into the interior of the grinder And performing a step of discharging the pulverized minerals from the grinder through a discharge pipe, transferring the minerals discharged through the discharge pipe to a vertical transfer pipe, and then inputting and selecting the crushers through a guide pipe. , It is characterized in that the minerals selected in the mesh sorter are discharged to a finished product outlet, and the minerals that are not sorted are made into a pulverizer through a feedback circulation pipe.

Since the present invention having the above characteristics is to form a guided inclined plate symmetrically in one direction rather than the central direction in the inside of the inlet for introducing minerals to allow the minerals to be fed and transported, the minerals are transferred to the hopper. Since the load is not applied to the transfer screw driven inside the pipe, there is an effect of smoothly transferring the mineral.

In addition, according to the present invention, by forming the diameter of the outlet side of the transport pipe larger than the diameter of the inlet side, there is an effect that the transport of minerals can be smoothly transported without clumping together.

In addition, according to the present invention, by attaching a removable cover to the inner wall surface of the grinder housing of the grinder so that the cover can be replaced when the cover is worn, there is an effect of extending the life of the grinder.

In addition, according to the present invention, since the chromium burrow is mounted on the rotating direction side of the hammer crushing the mineral to crush the mineral, the strength of the hammer can be enhanced and the abrasion resistance characteristics can be improved, so that the continuity of work as well as the extension of life There is an effect that can bring.

Figure 1a is a schematic front view showing the whole of the grinding system according to the present invention.
Figure 1b is a schematic side view showing the whole of the grinding system according to the present invention.
Figure 2 is a cross-sectional view showing a hopper and a transfer pipe for transferring the mineral according to the present invention to a crusher.
3 is a side view showing a sorter according to the present invention.
Figure 4 is a cross-sectional view showing the interior of the grinder according to the invention and A-A'cut sectional view.
Figure 5 is a side view showing a vertical transfer pipe for transporting the mineral crushed in the grinder according to the present invention to a mesh sorter.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

The main configuration of the crushing system equipped with a sorting function while simultaneously increasing the crushing efficiency of the mineral according to the present invention, as shown in Figure 1, the transfer pipe 300 for transporting the mineral input to the hopper 100, and the transfer The pulverizer 400 for crushing the minerals transferred through the tube 300, the mesh sorter 700 for sorting the minerals crushed in the grinder 400 with a mesh network, and the mesh sorter 700 that cannot be sorted It consists of a feedback circulation pipe 710 to feed the mineral so that it can be crushed.

The main configuration according to the present invention will be described in detail through the following drawings.

1 and 2, the configuration of the hopper 100 for injecting minerals is in the lower portion of the hopper 100 in order to allow the minerals to be injected only in one direction from the inside of the hopper 100. An inclined inclined plate 120 is formed to be inclined on the upper side of the inlet 110 that is formed, but the induction inclined plate 120 is located at a point 1/2 in one direction (front) from the inner center, and the lower side of the induction inclined plate 120 is formed. It is located and fixed to the inner wall by inclining at 30~45°.

The reason for this is that the size of the mineral is not constant, so that the load is generated in the feed hopper 100 and the feed screw 320 driven in the feed pipe 300, thereby causing a large load on the feed screw 320.

Therefore, in the present invention, the mineral inputted to the hopper 100 is not directly input vertically to the rear side of the transfer pipe 300 from the input port 110 of the hopper 100, but the transfer pipe along the inclined surface of the induction slope plate 120 ( 300) because it is input to the front, by reducing the occurrence of mineral jams and shortening the transfer distance, the transfer to drive the power of the motor 310 from the transfer pipe 300 and the transfer pipe 300 By reducing the load on the screw 320 is to drive the transfer screw 320 can be made smoothly.

In addition, as shown in Figure 2, the configuration of the transport pipe 300 for transporting the minerals input from the hopper 100 is larger than the diameter of the outlet 340 in the interior of the transport pipe 300 than the diameter of the inlet 330 By forming, since the minerals to be transported are spread widely as they go forward, the transport can be done smoothly.

And the structure of the pulverizer 400 for crushing the minerals moved through the transport pipe 300 is a diameter than the central axis 410 and the central axis 410 rotated by receiving the power of the motor as shown in FIG. A plurality of rotating disks 430 are spaced apart from each other with the enlarged disk axis 420 and the disk axis 420 being coaxial.

A plurality of hammer shafts 441, / 442/443/444 on the same circumference around the central axis 410 are installed on the rotating disk 430 in parallel in the same direction as the central axis 410.

In addition, the hammers 450 are coupled to the hammer shafts 441, /442/443/444, to be rotatable relative to each other.

If the structure of the pulverizer 400 is described more injured,

It consists of a central shaft 410 rotated by receiving the power of the motor and a disc shaft 420 having a larger diameter than the central shaft 410, and the disc shaft 420 is concentric with the central shaft 410, but has a diameter. By further expanding the torque according to the rotation of the rotating disk 430 directly coupled to the disk shaft 420 can be reduced, thereby reducing the physical impact applied to the disk shaft 420.

The disk shaft 420 is provided with a plurality of disk-shaped rotating disks 430 at regular intervals, which forms a hole in the circular plate with the same diameter as the diameter of the disk shaft 420 in the center of the circular plate. After extrapolating to the disk shaft 420 through the hole, the portion in contact with the disk shaft 420 and the rotating disk 430 may be combined through welding.

In addition, a plurality of hammer shafts 441, / 442/443/444 are installed parallel to the central shaft 410, and a plurality of hammer shafts 441, / 442/443/444 are installed. It is installed on the same circumference with respect to the central axis 410, and each hammer axis is disposed at a predetermined interval, that is, at an angle.

Preferably, as shown in FIG. 4B, four hammer shafts 441,/442/443/444 are installed on the rotating disk 430 at 90° intervals.

The combination of the respective hammer shafts 441/442/443/444 forms a hole to the extent that the hammer shaft can be forced on the same circumference radially based on the center of the rotating disk 430, and the hole In a state in which a plurality of the rotating disks 430 formed are coupled to the disk shaft 420 at regular intervals, the hammer shafts are coupled by interpolating through the holes.

The hammer shaft 441/442/443/444, which is interpolated and coupled across the rotating disks 430 installed at regular intervals, is coupled with a hammer 450 that strikes and crushes minerals, and the hammer 450 is one side A hammer shaft hole 452 that is extrapolated to the hammer shaft 441/442/443/444 is formed, and a chrome blower 451 is mounted at an end portion in the rotational direction of the hammer 450. This is because the part of the hammer 450 that is in contact with the mineral is severely worn when the mineral is crushed, so that a strong strength is formed in the chrome blower 451, and the chrome blower 451 is the hammer 450. It can be mounted on the body by disassembly/combination.

The hammer 450 combined by extrapolating the hammer shaft hole 452 to the hammer shaft 441/442/443/444 becomes rotatable relative to the hammer shaft, one rotating disc 430 and a rotating disc 430 Only one hammer 450 is installed in the liver, that is, there are four hammer shafts 441/442/443/444 between one rotating disc 430 and the rotating disc 430, but one of the four hammer shafts The hammer 450 is coupled only to the shaft. Preferably, the hammer 450 coupled to the same hammer shaft 441 is combined by jumping four rotating disks 430 as shown in FIG. 4A.

When the central axis 410 is rotated by the motor power of the hammer 450 installed in this way, the hammer 450 coupled to the hammer axis 441/442/443/444 is rotated in conjunction with the central axis 410.

Here, the rotating disk 430 serves as a guide so that the hammers 450 coupled to each hammer shaft do not tilt from side to side when rotating, thereby preventing collision between adjacent hammers 450 and effectively colliding minerals with the hammers 450 and minerals. It improves the crushing efficiency.

And the configuration of the pulverizer 400 for crushing the minerals moved through the transport pipe 300, as shown in Figure 3, the rotating disk 430 and the rotating disk 430 to rotate by receiving the power of the motor A hammer 450 that strikes and crushes the mineral in front of the is mounted. At this time, in order to increase the strength of the hammer 450, a chrome blower 451 is mounted at an end portion in the rotational direction of the hammer 450. In addition, the hammer 450 is configured to be mounted on one side of the central portion of the front end of the rotating disk 430.

Before explaining the configuration of the grinder 400 according to the present invention, the reason for selecting the material of the hammer 450 to crush and crush the mineral will be described.

1) Selection of materials for the development of mineral grinding hammer

In general, the hammer for crushing minerals has a process of colliding with minerals at high speed, so the probability of damage by impact is high, so the strength and impact value should be considered.

In addition, the material of the grinding roll is commonly used as a tool steel for cold mold, SKD11 steel type, and it is intended to be used to select an appropriate material compared to other materials.

As shown in [Table 1] below, a comparison of tool steel types and physical properties is as follows.

And when analyzing the chemical composition of SKD11, it is as shown in [Table 2], and the alloy and composition of steel are factors that have a great influence on mechanical properties, so they are important considerations.

Meanwhile, the effects of alloying elements in steel are as follows.

-In the case of chromium (Cr), when it is contained in steel, it can improve corrosion resistance and make chromium-based carbides, thereby improving wear resistance of high hardness.

-Molybtene (Mo), when added with chromium, is known as an element that greatly improves mechanical properties such as improved wear resistance and hardness.

-In the case of carbon (C), it is the first element that increases the strength of the steel.

-Phosphorus (P) and sulfur (S) impair the cleanliness of the steel and are the elements that cause brittleness (breaking properties).

⊙ Hardness test

-An important physical property that determines wear resistance is hardness, which is intended to measure the hardness of each specimen.

-Vickers hardness test by 5 points for each specimen: 1000gf of measured load (load range: ~Max.2000)

⊙ Impact test

-In order to select the material for the crushing hammer, the impact resistance characteristics of the candidate group (steel) will be checked.

-In the process of crushing a mineral having its own hardness, in order to increase resistance to collision with the mineral and secure durability, it is necessary to retain the impact resistance at a certain level or higher.

-The test piece is prepared as a standard test for the Charpy impact test for candidate groups.

-The test is based on Charpy V notch standard (ASTM E32) and the shape of the test piece is as follows.

<Shape V notch test piece shape and specification>

2) Selection of grinding target

⊙ Compression test

-Compression test for silicon manganese, ferromanganese and chromium

-MTS' UTM use, load record

-As a result of the test, silicon manganese and ferromanganese are broken at low loads (6kN, 14kN), but in the case of chromium, they are not broken even under significant loads (over 100kN).

-Chrome is not broken during a collision, so it is expected to give the greatest impact.

-Therefore, the load is considered in the design.

[Object of crushing]

[Compression test result (sample)]

[Compression test result (graph)]

⊙ Chromium mechanical properties

Contents value density 7.1 gcm- ³ The tensile strength 103~689 MPa Young Yul 279 GPa Poisson's ratio 0.21

*http://www.goodfellow.com/E/Chromium-Metal.html

3) Hammer design

⊙ Hammer's Finite Element Analysis

-Purpose: To calculate the stress applied to the hammer when chromium collides with the hammer.

-Program used: Abaqus Standard and Abaqus CAE

-The mechanical properties used in the analysis are as follows.

Contents SM45C (hammer material) Chromium density 7.8 gcm ^-3 7.1 gcm- ³ The tensile strength 490 MPa 689 MPa Young Yul 210 GPa 279 GPa Poisson's ratio 0.3 0.21

*SM45C: http://steelmax.co.kr

-Hammer structure

[Hammer structure and mounting position]

-Finite Element Analysis Model

[Half model for finite element analysis of hammer, disc and chrome]

-Boundary and load conditions

Rotation Speed: 700 RPM

Application of centrifugal force generated by rotation

Assume that chrome (40x40x30mm) collides at a constant speed (13.1m/s)

Apply bolt load (2000kgf) for the combination of disk and hammer

[Border and load conditions (Half model)]

-Analysis results

Equivalent stress due to centrifugal force and bolted load: 39.86 MPa

Maximum equivalent stress due to impact (including above stress): 254.9 MPa

The maximum stress (254.9 MPa) is below the yield stress (689 MPa).

Therefore, the current design satisfies the condition.

[Equivalent stress distribution: centrifugal force and bolted load applied (left), collision load applied (right)]

In the present invention by the experiment as described above, it is configured by mounting the chrome blower 451 in the direction of rotation of the hammer 450.

Therefore, in order to increase the strength of the hammer 450, the chrome blower 451 is mounted in the rotational direction to reinforce and improve the abrasion resistance. Therefore, since the amount of wear when hitting a mineral is small, the life of the hammer 450 is extended. By doing so, it is possible to improve the crushing efficiency by reducing the replacement time of the hammer 450.

In addition, the inner surface of the grinder 400 is configured to be equipped with a removable cover 470 on the inner surface of the grinder housing 460 due to severe wear. Therefore, when the cover 470 is worn while hitting the mineral with the hammer 450, only the cover 470 can be exchanged for use, thereby improving durability of the grinder 400 itself.

And the configuration of the discharge pipe 500 for conveying the minerals pulverized and discharged from the pulverizer 400 to the mesh sorter 700 made of a mesh network is a free fall method when moving the pulverized powder-type mineral inside the pulverizer 400 Since there is a possibility of material loading at the intermediate connection when transferring to the transfer machine, the transfer method to the transfer machine was configured as the transfer screw pipe transfer method. That is, the discharge screw 510 is formed inside the discharge pipe 500. Therefore, the accumulation phenomenon can be prevented.

In addition, the configuration of the vertical transfer pipe 630 for transferring the minerals discharged through the discharge pipe 500 to the mesh sorter 700, as shown in Figures 1 and 5, vertically by receiving the power of the motor therein A plurality of buckets 610 are formed at intervals from the rotating rotator 620.

In addition, the guide pipe 630 for guiding the minerals crushed through the vertical transfer pipe 600 to the mesh sorter 700 is configured by connecting with the vertical transfer pipe 600.

And when looking at the configuration of the mesh sorter 700 for sorting the crushed minerals induced through the guide tube 630 to a certain size, the mesh sorter 700 has a mesh network therein, as shown in FIG. 3. It is formed to be formed to select a predetermined size, and the selected mineral is discharged through the finished product outlet 720 at the same time, and at the same time, the mineral that has not been selected has a feedback circulation pipe 710 formed on the upper side of the mesh sorter 700. It is circulated through the grinder 400 to be crushed again.

Herein, the mesh networks in the mesh sorter 700 may be installed in multiple directions from top to bottom according to specifications, and it is natural that a plurality of feedback circulation pipes 710 are also installed when there are multiple mesh networks. It is preferable to install two feedback circulation pipes 710 in two.

The operating state of the crushing system with the automatic sorting function of the mineral according to the present invention configured as described above will be described with reference to FIGS. 1 to 5 as follows.

As shown in FIG. 1, when minerals are introduced into the hopper 100, the minerals are introduced into the inlet 110 along the guided inclined plate 120 installed at the center front 1/2 point instead of the center of the hopper 100. Is put in. Therefore, the mineral is input to the front of the inlet 110.

The mineral introduced into the front of the inlet 110 flows into the transfer pipe 300 mounted on the lower portion of the hopper 100. At this time, since the transfer screw 320 driven by receiving the power of the motor from the inside of the transfer pipe 300 does not load, the driving is smoothly performed. Therefore, the mineral introduced into the transfer pipe 300 is transferred to the front by a transfer screw 320 driven by receiving the power of the motor 310.

In addition, since the diameter of the outlet 340 is larger than the diameter of the inlet 330 of the transfer pipe 300, the transfer is smoothly performed. In other words, the more the material is transported forward, the wider the mineral spreads, so smoothing is achieved.

The mineral transferred through the transfer pipe 300 is introduced into the interior of the grinder 400, and the introduced mineral is a hammer coupled to a rotating disk 430 that is driven by receiving the power of the motor from the interior of the grinder 400. The hammer 450 is coupled to the shaft 441/442/443/444 so as to be rotatable, and is crushed while being hit. At this time, in order to increase the strength of the hammer 450, since the chrome blower 451 is mounted in the rotational direction of the hammer 450, it is possible to delay wear prevention due to high strength when hitting minerals. Therefore, since the life of the hammer 450 can be extended, it is possible to improve work efficiency.

And the mineral crushed in the pulverizer 400 is discharged along the discharge screw 510 of the discharge pipe 500 and transferred to the vertical transfer pipe 600, the mineral transferred to the vertical transfer pipe 600 rotates inside It is transferred to the bucket 610 mounted on the rotating body 620 to be transferred to the mesh sorter 700 through the induction pipe 630, and sorting is performed at a predetermined size.

Minerals powdered to a certain standard selected by the mesh sorter 700 are discharged to a finished product outlet 720. In addition, the minerals that cannot be sorted are introduced into the grinder 400 through the feedback circulation pipe 710 to be crushed.

Briefly explaining the crushing method according to the present invention that operates as described above is made of the following process.

The present invention consists of a step of injecting minerals through the inlet 110 into the front of the hopper 100 with the guided inclined plate 120 installed at the center front 1/2 point instead of the center of the hopper 100.

The outlet having a diameter larger than the diameter of the inlet 330 of the transfer pipe 300 so as to smoothly transfer the mineral inputted through the inlet 110 to the transfer screw 320 driven by receiving the power of the motor 310 ( It consists of a step of discharging to the interior of the grinder 400 through 340).

The minerals introduced into the interior of the grinder 400 are crushed by hitting with a chrome blower 451 mounted in the rotational direction side of the hammer 450 combined with a rotating disk 430 rotating by receiving power of a motor from the inside. In order to prevent wear of the inner wall surface of the grinder housing 460 during the crushing process, a detachable cover 470 is formed in the grinder housing 460 to be replaced when the cover 470 is worn to perform a crushing operation. .

It consists of the step of discharging the mineral crushed in the pulverizer 400 through the discharge screw 510 of the discharge pipe 500.

After the minerals discharged through the discharge screw 510 are transferred to the bucket 610 mounted on the rotating body 620 rotating inside the vertical transfer pipe 600, the mesh separator is guided through the guide pipe 630 ( 700).

The selected minerals from the mesh sorter 700 are discharged to the finished product outlet 720, and the unselected minerals are introduced into the grinder 400 through the feedback circulation pipe 710 and crushed.

The present invention made of the above steps can be smoothly transported without loading the transfer screw into the transfer screw, and when crushing the crushed mineral with a hammer equipped with a chrome burrow, it is crushed and, of course, wear resistance and strength By increasing the hammer life can be extended and work efficiency can be improved. In addition, the crushed minerals are automatically sorted to a certain size through a mesh sorter, and at the same time, aggregates that have not been sorted can be fed back to the grinder to be crushed again, thereby increasing sorting efficiency.

As described above, the detailed description of the present invention has been made by an embodiment referring to the accompanying drawings, but the above-described embodiment is only described as a preferred example of the present invention, and the present invention is limited to the above-described embodiment only. It should not be understood as. Therefore, a person having ordinary knowledge in the technical field to which the present invention pertains may easily implement other forms of the present invention within the same scope as the above embodiment by simply explaining the embodiments of the present invention, or the present invention. It will be possible to implement the invention in an even domain.

100. Hopper 110. Inlet
120. Induction slope plate 300. Transfer pipe
310. Motor 320. Transfer screw
330. Inlet 340. Exit
350. Outlet 400. Crusher
410. Central axis 420. Disc axis
430. Rotating disk 441/442/443/444. Hammer shaft
450. Hammer 451. Chrome Brolova
452. Hammer Shaft Hall 470. Interior Wall
460. Shredder housing 500. Outlet pipe
510. Discharge screw 600. Vertical transfer pipe
620. Bucket 610. Rotating body
630. Guide tube 700. Mesh sorter
720. Outlet 710. Feedback circulation pipe

Claims (6)

Hopper 100 for injecting minerals,
And the transfer screw 320 for driving the inside of the transfer pipe 300 receives the power of the motor 310 to be transported by feeding the minerals input to the hopper 100 to the input port 110,
A pulverizer 400 for introducing and crushing minerals discharged from the discharge port 350 of the transfer pipe 300,
Discharge pipe 500 for discharging the crushed minerals in the pulverizer 400,
A vertical transfer pipe 600 made of a bucket 610 mounted on the rotating body 620 to vertically transfer the minerals discharged through the discharge screw 510 of the discharge pipe 500,
Induction pipe 630 is connected to the vertical transfer pipe 600 to guide the mineral to the mesh sorter 700,
A mesh sorter 700 for sorting minerals induced through the induction pipe 630,
The selected minerals from the mesh sorter 700 are discharged through the finished product outlet 720, and the unselected minerals are fed back to the feedback circulation pipe 710 and re-entered into the grinder 400 to be crushed. Grinding system with automatic sorting of minerals. According to claim 1,
The inside of the hopper 100 is configured by forming an induction inclined plate 120 to introduce minerals only in one direction, but the inclined inclined plate 120 has an inclination angle from the center of the hopper 100 to 1/2 point forward Grinding sheath with automatic sorting function of minerals, characterized in that configured to be made.
According to claim 1,
The transfer screw 320 is an automatic mineral that is characterized in that the outlet 340 of the transfer pipe 300 is configured to be larger than the diameter of the inlet 330 side to smoothly transfer without being loaded due to the mineral being transferred. Grinding system with sorting function.
According to claim 1,
The grinder 400 is rotated by receiving the power of the motor, the central shaft 410 and the disk shaft 420 having a larger diameter than the central shaft 410 and the rotating disc 430 installed on the disk shaft 420 And, it is made of a hammer shaft installed on the rotating disk 430, and a hammer 450 coupled to the hammer shaft, characterized in that the chrome blower 451 is formed on the side of the rotation direction of the hammer 450 Grinding system with automatic sorting of minerals.
According to claim 1,
Grinding system with the automatic sorting function of minerals, characterized in that a detachable cover 470 is mounted in the grinder housing 460 to prevent wear of the inner wall surface of the grinder housing 460 of the grinder 400.
Injecting the mineral through the inlet 110 in front of the hopper 100,
Discharging the mineral input through the inlet 110 through the transfer pipe 300 to the interior of the grinder 400,
Performing a crushing operation of minerals introduced into the pulverizer 400;
Discharging the mineral crushed in the grinder 400 through the discharge pipe 500,
After the minerals discharged through the discharge pipe 500 is transferred to the vertical transfer pipe 600, it is input to the mesh sorter 700 through the guide pipe 630 and selected,
The selected minerals from the mesh sorter 700 are discharged to the finished product outlet 720, and the unselected minerals are made into the pulverizer 400 through the feedback circulation pipe 710 and crushed. A grinding method with automatic sorting of minerals.

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