Rod mill for steel slag processing

Abstract

The invention discloses a rod mill for steel slag processing in the field of rod mill processing, and the rod mill comprises a cylinder body, an inner cylinder and an outer cylinder, the inner cylinder and the outer cylinder are coaxially and rotatably connected with the cylinder body, a lining plate is annularly arranged in the inner cylinder, the outer cylinder sleeves the outer part of the inner cylinder, the outer cylinder is longer than the inner cylinder, the outer cylinder is slidably connected with the inner cylinder, and the inner cylinder is rotatably connected with the inner cylinder. A pushing mechanism for pushing the outer cylinder to slide is arranged at one end of the outer cylinder, discharging holes are formed in the side walls of the inner cylinder and the outer cylinder, when the outer cylinder slides to a certain position, the discharging holes of the inner cylinder and the outer cylinder are communicated with each other, the two ends of the inner cylinder are communicated with feeding pipes, and the feeding pipes are communicated with a feeding bin; the feeding pipe at one end extends out of the barrel body and is provided with a rotating mechanism, and the inner barrel and the outer barrel can rotate together under the driving of the rotating mechanism. According to the device, steel slag can be placed in the inner cylinder and then screened after being crushed, qualified steel slag can fall out of the cylinder body to be recycled, and unqualified steel slag can be continuously left in the inner cylinder to be crushed repeatedly.

Description

Technical Field

[0001] The invention belongs to the field of rod mill processing, and in particular relates to a rod mill used for steel slag processing. Background Art

[0002] Rod mill is a mechanical equipment that uses the rotation of the cylinder to drive the material and the long round rod in the cylinder to rotate together. The rotating round rod falls, rolls or slides, which produces crushing effects such as squeezing, rolling and impacting on the material, thereby crushing the material. It is usually used in the mining, stone, cement and other industries to grind ores and stones. Large-sized ores and stones enter the cylinder, and the mill grinds them coarsely, medium and finely to make the ore and stone particle size meet the user's requirements. Rod mill usually consists of a cylinder, a feeding part, a discharging part, a transmission device, a supporting part, a hydraulic system, a long round rod, etc. The cylinder is the main working part of the mill. The inner wall of the cylinder is usually equipped with a liner to protect the cylinder. The liner can be made into a liner with convex strips. The role of the convex strip liner is to bring the material to a higher place in the cylinder and then throw it down, which can produce a higher crushing effect at a lower power and reduce power consumption.

[0003] Steel slag is a byproduct of steel production. It has been piled up in large quantities for a long time, occupying land and polluting the environment. Through rod mill processing, the iron and other valuable components in the steel slag can be effectively crushed and dissociated to achieve resource recycling and reuse. When the existing rod mill crushes the steel slag, it takes a long time to crush it because the steel slag is hard. However, the existing rod mill usually adopts the method of crushing and discharging at the same time for production, so it often causes the steel slag to flow out of the rod mill before it is completely crushed. It needs to be re-screened outside the rod mill and then crushed multiple times until the steel slag becomes a powder of the required size before it can be used. Summary of the invention

[0004] The present invention is intended to provide a rod mill for processing steel slag, so as to solve the problem that the existing rod mill does not crush the steel slag completely when processing the steel slag, and needs to crush it again after external screening.

[0005] The rod mill for slag processing in the present scheme comprises a cylinder, an inner cylinder and an outer cylinder, wherein the inner cylinder and the outer cylinder are both located inside the cylinder and are coaxially rotatably connected with the cylinder, a discharge port is provided at the bottom of the cylinder, a lining plate is arranged around the inner cylinder, the lining plate is fixedly connected to the inner wall of the inner cylinder, the outer cylinder is sleeved on the outside of the inner cylinder, the outer cylinder is longer than the inner cylinder, the outer cylinder is slidably connected to the inner cylinder, one end of the outer cylinder is provided with a pushing mechanism for pushing the outer cylinder to slide relative to the inner cylinder, the side walls of the inner cylinder and the outer cylinder are both provided with discharge holes, when the outer cylinder slides to a certain position, the discharge holes of the inner cylinder and the outer cylinder are connected with each other, both ends of the inner cylinder are connected with a feed pipe, the position where the feed pipe extends to the outside of the cylinder is connected with a feed bin, the feed pipe at one end extends to the outside of the cylinder and is provided with a rotating mechanism, and the inner cylinder and the outer cylinder can rotate together driven by the rotating mechanism.

[0006] The working principle of this scheme is as follows: when in use, the steel rod of the rod mill is located in the inner cylinder, and the steel slag is poured into the feeding bins at both ends, and the steel slag will enter the inner cylinder along the feeding pipe, and at the same time, the pushing mechanism fixed to the outer cylinder pushes the outer cylinder to slide along the outer wall of the inner cylinder until the discharge holes of the outer cylinder and the inner cylinder are staggered, so that the side walls of the inner cylinder and the outer cylinder are sealed. When the steel slag is filled, the rotating mechanism can be started to rotate, driving the inner cylinder and the outer cylinder to rotate together, driving the internal steel rod to rise and then smash down, and crushing the steel slag in the inner cylinder. When the crushing is completed, the pushing mechanism can be started to drive the outer cylinder to slide along the outer side of the inner cylinder until the discharge holes of the outer cylinder and the inner cylinder are staggered, exposing the discharge hole of the inner cylinder in the cylinder. At this time, the inner cylinder is rotated again, and the crushed steel slag inside can fall into the cylinder through the discharge hole of the inner cylinder and be recovered from the discharge port at the bottom of the cylinder.

[0007] Beneficial effects: 1. The device can place the steel slag inside the inner cylinder until it is crushed and then falls out of the cylinder for recycling;

[0008] 2. It avoids the situation where steel slag splashes everywhere when crushing and discharging;

[0009] 3. The inner cylinder is set up with the outer cylinder, and the inner cylinder can be closed and opened according to actual needs to avoid the rapid loss of internal materials. It has a wide range of uses and can be applied to various rod mill crushing methods.

[0010] Furthermore, the rotating mechanism includes a motor and a driving wheel. The feed pipe at one end of the inner cylinder extends out of the cylinder and is coaxially connected to the cylinder. A driven wheel is arranged around the outer wall of the end of the feed pipe extending out of the cylinder. The driven wheel meshes with the driving wheel, and the rotating end of the motor is fixedly connected to the center of the driving wheel. When in use, the motor is started to drive the driving wheel to rotate, and the driving wheel rotation can drive the driven wheel to rotate, thereby driving the feed pipe to rotate. Since the inner cylinder is fixedly connected to the feed pipe, the driven wheel can drive the inner cylinder to rotate together when it rotates, so that the steel rod inside rises and then falls down, and the steel slag inside is crushed.

[0011] Furthermore, the outer sides of the feed pipes at both ends are fixedly connected with fixing bars, which extend from the end of the inner cylinder to one side of the cylinder body, and the outer cylinder is slidably connected to the feed pipe and the fixing bars. The fixing bars facilitate the outer cylinder to rotate together when the inner cylinder rotates, so that they are always in a synchronized state.

[0012] Furthermore, the pushing mechanism includes a rotating disk and a plurality of push rods, the rotating disk is fixedly connected to the outside of the feed pipe, the plurality of push rods are fixedly connected to the side of the rotating disk close to the outer cylinder, and the telescopic ends of the plurality of push rods are fixedly connected to the end of the outer cylinder. The push rod facilitates the sliding of the outer cylinder relative to the inner cylinder, and when necessary, the push rod can be activated to push the outer cylinder to slide along the inner cylinder to close or open the discharge hole of the inner cylinder.

[0013] Furthermore, an electromagnet is fixedly connected inside the discharge port. The electromagnet can be turned on when the slag is crushed. When the slag moves to the top of the inner cylinder under the rotation of the inner cylinder, the electromagnet can quickly drop the magnetic slag, effectively increasing the time for the slag to be hit by the steel rod and accelerating the crushing of the slag.

[0014] Furthermore, the discharge holes of the inner cylinder are all fixedly connected with screens, which can be used to screen the slag when it falls out, and qualified slag can fall out for reuse, while unqualified slag can continue to be crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a rod mill for steel slag processing according to the present invention;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure with half of the cylinder 5 removed;

[0017] Figure 3 for Figure 1 sectional view of . DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The figure marks in the drawings of the specification include: support column 1, motor 2, driving wheel 3, feed bin 4, cylinder 5, discharge port 6, outer cylinder 7, fixing bar 8, screen 9, inner cylinder 10, push rod 11, rotating disk 12, electromagnet 13, lining plate 14.

[0020] The embodiment is basically as shown in the attached Figure 1 to Figure 3 As shown: A rod mill for steel slag processing, comprising a cylinder 5, an inner cylinder 10 and an outer cylinder 7, the bottom of the cylinder 5 is fixedly connected to two support columns 1, a discharge port 6 is provided at the bottom of the cylinder 5, the discharge port 6 is located between the two support columns 1, and an electromagnet 13 is fixedly connected inside the discharge port 6, the inner cylinder 10 and the outer cylinder 7 are coaxially slidably connected, a lining plate 14 is provided inside the inner cylinder 10, and the lining plate 14 is fixedly connected to the inner cylinder 10, and the inner cylinder 10 and the outer cylinder 7 are both located inside the cylinder 5 and are coaxially rotatably connected to the cylinder 5, the outer cylinder 7 is longer than the inner cylinder 10, and the outer cylinder 7 is slidably connected to the inner cylinder 10 The two ends of the inner cylinder 10 are connected with a feed pipe, which extends out of the two ends of the outer cylinder 7 and the two ends of the cylinder body 5, and is rotatably connected to the cylinder body 5. The two ends of the feed pipe extending out of the cylinder body 5 are connected with a feed bin 4. A driven wheel is arranged around the position where the feed pipe at one end extends out of the outside of the cylinder body 5. The driven wheel is fixedly connected to the feed pipe, and the driven wheel is meshed with a driving wheel 3. The driving wheel 3 is fixedly connected to a motor 2. Two fixing bars 8 are fixedly connected to the outside of the feed pipes at both ends. The fixing bar 8 extends from the end of the inner cylinder 10 to the end of the cylinder body 5. The outer cylinder 7 is slidably connected to the feed pipe and the fixing bar 8.

[0021] A pushing mechanism is provided between the outer cylinder 7 and the inner wall of the cylinder body 5, and the pushing mechanism includes a rotating disk 12 and a plurality of push rods 11. The rotating disk 12 is arranged around the outer side of the feed pipe and is fixedly connected to the feed pipe. The plurality of push rods 11 are fixedly connected to the side of the rotating disk 12 facing the outer cylinder 7, and the pushing ends of the plurality of push rods 11 are fixedly connected to the end of the outer cylinder 7. The side walls of the outer cylinder 7 and the inner cylinder 10 are provided with a plurality of discharge holes. When the outer cylinder 7 slides to a certain position, the discharge holes of the outer cylinder 7 and the inner cylinder 10 are connected to each other, and the plurality of discharge holes of the inner cylinder 10 are fixedly connected with screens 9.

[0022] The specific implementation process is as follows: when in use, the push rod 11 is started to push the outer cylinder 7 to move to the discharge holes of the two to stagger each other, so that the side walls of the inner cylinder 10 and the outer cylinder 7 are closed, and then the steel slag to be crushed is poured into the feeding bins 4 at both ends, and the steel slag enters the inner cylinder 10 along the feeding pipe. A plurality of steel rods are placed in the inner cylinder 10 in advance. When the steel slag is filled, the motor 2 can be started to drive the driving wheel 3 to rotate, and the driven wheel meshing with the driving wheel 3 rotates accordingly, so that the feeding pipe and the inner cylinder 10 rotate together. Because the outer cylinder 7 is sleeved on the outside of the inner cylinder 10 and is slidably connected with the fixing bar 8, the outer cylinder 7 can also rotate synchronously with the inner cylinder 10. The steel rods in the inner cylinder 10 will rise and fall into the steel slag below under the rotation of the inner cylinder 10 to crush the steel slag. During crushing, the electromagnet 13 located at the lower discharge port 6 can be turned on to make the steel slag brought to the top during the rotation of the inner cylinder 10 fall quickly, effectively increasing the time for the steel slag to be crushed.

[0023] After crushing, the electromagnet 13 is turned off, and the push rod 11 is started to drive the outer cylinder 7 to slide relative to the inner cylinder 10, so that the discharge hole of the outer cylinder 7 moves to a position connected with the discharge hole of the inner cylinder 10. At this time, the crushed slag can pass through the screening of the screen 9, and the qualified slag can fall out of the discharge hole and enter the discharge port 6 under the cylinder 5, and fall to the outside for recycling, while the incompletely crushed slag can continue to be crushed inside the rod mill until it is crushed to be qualified.

[0024] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rod mill for steel slag processing, characterized in that: The invention comprises a cylinder body, an inner cylinder and an outer cylinder, wherein the inner cylinder and the outer cylinder are both located inside the cylinder body and are coaxially rotatably connected with the cylinder body, a discharge port is provided at the bottom of the cylinder body, a lining plate is provided inside the inner cylinder, the lining plate is fixedly connected to the inner wall of the inner cylinder, the outer cylinder is sleeved on the outside of the inner cylinder, the outer cylinder is longer than the inner cylinder, the outer cylinder is slidably connected to the inner cylinder, a pushing mechanism for pushing the outer cylinder to slide relative to the inner cylinder is provided at one end of the outer cylinder, discharge holes are provided on the side walls of the inner cylinder and the outer cylinder, and when the outer cylinder slides to a certain position, the discharge holes of the inner cylinder and the outer cylinder are connected with each other, both ends of the inner cylinder are connected with a feed pipe, the position where the feed pipe extends to the outside of the cylinder body is connected with a feed bin, the feed pipe at one end extends to the outside of the cylinder body and is provided with a rotating mechanism, and the inner cylinder and the outer cylinder can rotate together driven by the rotating mechanism.

2. The rod mill for steel slag processing according to claim 1, characterized in that: The rotating mechanism includes a motor and a driving wheel. The feed pipe at one end of the inner cylinder extends out of the cylinder and is coaxially connected to the cylinder. A driven wheel is arranged on the outer wall of one end of the feed pipe extending out of the cylinder. The driven wheel is meshed with the driving wheel. The rotating end of the motor is fixedly connected to the center of the driving wheel.

3. The rod mill for steel slag processing according to claim 2, characterized in that: The outer sides of the feed pipes at both ends are fixedly connected with fixing strips, which extend from the end of the inner cylinder to one side of the cylinder body, and the outer cylinder is slidably connected to the feed pipe and the fixing strips.

4. The rod mill for steel slag processing according to claim 3, characterized in that: The pushing mechanism includes a rotating disk and a plurality of push rods, wherein the rotating disk is fixedly connected to the outside of the feed pipe, and the plurality of push rods are fixedly connected to a side of the rotating disk close to the outer cylinder, and the telescopic ends of the plurality of push rods are fixedly connected to the end of the outer cylinder.

5. The rod mill for steel slag processing according to claim 4, characterized in that: An electromagnet is fixedly connected inside the discharge port.

6. The rod mill for steel slag processing according to claim 4, characterized in that: The discharge holes of the inner cylinder are all fixedly connected with screens.

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