Vertical sinter grinding system

Abstract

The invention provides a vertical sinter grinding system which comprises a machine shell, a screen drum fixedly connected with the machine shell, a ball-milling drum rotationally connected with the machine shell and a grinding drum rotationally arranged on the same axis as the machine shell are sequentially arranged in the machine shell from top to bottom, a plurality of first screen holes are formed in the screen drum, a plurality of leakage holes are formed in the ball-milling drum, and a plurality of second screen holes are formed in the ball-milling drum. Wherein a whipping assembly is arranged in the screen drum, grinding balls are arranged in the ball-milling drum, and a grinding channel which is gradually reduced from top to bottom is arranged between the outside of the grinding drum and the inner wall of the lower end of the machine shell; the machine shell is further provided with a feeding hopper communicated with the screen drum and a discharging hopper communicated with the grinding channel. The problem that in the prior art, the material grinding efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the technical field of vertical grinding equipment, in particular to a sintered material vertical grinding system. Background Art

[0002] Soil conditioners are made of ore, slag and potassium-containing shale, etc., which are calcined, then ground after cooling, and then mixed with other additives. In the processing process, grinding is one of the key steps, which can be carried out by a grinding machine. The grinding machine can generally be a ball mill, which uses a motor to drive the outer shell of the ball mill to rotate. A number of grinding balls are installed in the outer shell. After the material is introduced into the outer shell, it rolls with the grinding balls and collides with each other to crush the material to achieve grinding. The processing of the conditioner is first calcined, and the material will be connected into lumps of different sizes. It needs to be broken up first and then ball-milled. It is usually carried out separately, which is less efficient. At the same time, in the ball milling process, some materials that are more tightly combined after calcination require longer time, while some only need a very short time. This results in the overall ball milling time needing to take care of some materials that take longer and take longer time. The overall ball milling time is relatively long, which further leads to lower overall efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a sintered material vertical grinding system, which solves the problem of low material grinding processing efficiency in the prior art.

[0004] According to an embodiment of the present invention, a sintered material vertical grinding system includes a casing, in which a screen drum fixedly connected to the casing, a ball mill rotatably connected to the casing, and a grinding drum rotatably arranged coaxially therewith are arranged in sequence from top to bottom, the screen drum is provided with a plurality of first screen holes, and the ball mill is provided with a plurality of leakage holes, wherein a beating assembly is arranged in the screen drum, grinding balls are arranged in the ball mill, and a grinding channel which gradually becomes smaller from top to bottom is arranged between the outside of the grinding cylinder and the inner wall of the lower end of the casing; the casing is also provided with a feed hopper connected to the screen drum, and a discharge hopper connected to the grinding channel.

[0005] In the above embodiment, the material is introduced through the feed hopper to be broken up, then enters the ball mill below for ball milling, and then enters the grinding channel below for grinding again. The overall processing process is smoother and can be processed continuously at the same time. Both short and long ball milling times can be taken into account. Therefore, the overall efficiency is improved accordingly, solving the problem of low material grinding processing efficiency in the prior art.

[0006] Furthermore, a first motor is installed on the casing, the first motor is connected to a first installation shaft, and the first installation shaft rotates to extend into the casing and rotates through the screen cylinder to be fixedly connected to the ball mill cylinder.

[0007] Furthermore, the whipping assembly includes a plurality of whipping rods fixedly connected to the first mounting shaft.

[0008] Furthermore, a sieve plate is fixedly sleeved on the first mounting shaft, and the sieve plate is fixedly connected to the inner wall of the ball mill, and a plurality of second sieve holes are arranged on the sieve plate, and grinding balls are arranged above and below the sieve plate.

[0009] Furthermore, a mounting frame is fixedly provided below the casing to support it, a second motor is mounted on the mounting frame, the second motor is connected to a second mounting shaft, and the second mounting shaft is fixedly connected to the grinding cylinder.

[0010] Furthermore, the discharging hopper is fixedly connected with a protective cylinder surrounding the second motor, and the protective cylinder also extends into the grinding cylinder and is in sliding contact with the inner wall of the grinding cylinder.

[0011] Furthermore, the grinding cylinder is in a bullet shape with the small end facing upwards, and the second mounting shaft extends upwards and is fixedly connected to the inner top surface of the grinding cylinder.

[0012] Furthermore, the ball mill is a structure with a large upper end and an arc-shaped reduced lower end. A support ring is fixedly provided in the casing to rotatably support the outer wall of the ball mill, and all the leakage holes are located in the support ring.

[0013] Furthermore, a hardened cylinder surrounding the grinding cylinder is fixedly connected to the inner wall of the lower end of the casing, and a plurality of reinforcing ribs are protruding from the inner wall of the hardened cylinder, and all the reinforcing ribs are in a structure with upper and lower ends turned outward.

[0014] Furthermore, an installation sleeve is rotatably provided outside the first installation shaft, the sieve drum is fixedly connected to the installation sleeve, and the installation sleeve includes a material guide section located in the sieve drum, the beating rod includes a mounting section fixedly connected to the first installation shaft and a first beating section fixedly connected to the mounting section, the mounting section is located above the material guide section and all the first beating sections are equidistantly surrounded outside the material guide section, the material guide section has a structure that is small at the top and large at the bottom, and the first beating section is inclined and the higher end is close to the first installation shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The material is gradually broken up, ball-milled and ground in a three-dimensional downward manner, which ensures the grinding effect and saves the time for transferring the material after breaking up. The ball-milling process takes into account materials of different lengths of time, improves the overall efficiency, and solves the problem of low material grinding efficiency in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the enlarged local structure at center A;

[0019] In the above drawings:

[0020] Casing 1, sieve cylinder 2, ball mill cylinder 3, grinding cylinder 4, grinding balls 5, grinding channel 6, feed hopper 7, discharge hopper 8, first motor 9, first mounting shaft 10, beating rod 11, mounting sleeve 12, material guide section 13, mounting section 14, first beating section 15, second beating section 16, mounting frame 17, second motor 18, second mounting shaft 19, hardened cylinder 20, reinforcing ribs 21, protective cylinder 22, sieve plate 23, support ring 24. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In an exemplary embodiment, Figure 1 , 2 As shown, this embodiment provides a sintered material vertical grinding system, which includes a casing 1, in which a screen drum 2 fixedly connected thereto, a ball mill 3 rotatably connected thereto, and a grinding drum 4 rotatably arranged coaxially therewith are arranged in sequence from top to bottom, the screen drum 2 is provided with a plurality of first sieve holes, and the ball mill 3 is provided with a plurality of leakage holes, wherein a beating assembly is arranged in the screen drum 2, and grinding balls 5 are arranged in the ball mill 3, and a grinding channel 6 which gradually becomes smaller from top to bottom is arranged between the outside of the grinding drum 4 and the inner wall of the lower end of the casing 1; the casing 1 is also provided with a feed hopper 7 connected with the screen drum 2, and a discharge hopper 8 connected with the grinding channel 6.

[0024] In the above embodiment, the material is introduced through the feed hopper 7 for breaking up, then enters the ball mill 3 below for ball milling, and then enters the grinding channel 6 below for grinding again. The overall processing process is smoother and can be processed continuously at the same time. Both short and long ball milling times can be taken into account. Therefore, the overall efficiency is improved accordingly, and the problem of low material grinding efficiency in the prior art is solved. More specifically, the aperture of the first sieve hole is larger than the leakage hole, and the upper end width of the grinding channel 6 is larger than the aperture of the leakage hole, and the lower end width is smaller than the aperture of the leakage hole. The material particles after breaking up will still be relatively large, and some are large and some are small. The sieve holes only intercept the unbroken materials. After the materials reach the ball mill 3, they come into contact with the grinding balls 5 to realize ball milling. During the ball milling process, the materials that are first ground fall through the leakage holes, while the materials that are not ground continue to be ground. The materials that fall into the grinding channel 6 below are ground again during the rotation of the grinding cylinder 4 and finally enter the discharge hopper 8 for discharge. During the whole process, the materials can continuously enter the feed hopper 7 and continuously be discharged from the discharge hopper 8 to realize continuous processing. In particular, the upper end of the grinding channel 6 is set to be larger than the aperture of the leakage hole, so that the materials falling from the leakage hole can smoothly enter the grinding channel 6 and will not be trapped above the grinding channel 6, so that the grinding can proceed normally.

[0025] like Figure 1 As shown, a first motor 9 is installed on the outer top surface of the casing 1, and the first motor 9 is connected to a first mounting shaft 10. The first mounting shaft 10 rotates and extends into the casing 1 and rotates through the screen drum 2 and is fixedly connected to the ball mill 3. The first mounting shaft 10 driven by the first motor 9 rotates, thereby driving the grinding drum 4 to rotate. Furthermore, the beating assembly includes a plurality of beating rods 11 fixedly connected to the first mounting shaft 10, so that the first motor 9 simultaneously drives the beating rods 11 to perform the beating operation. In more detail, a mounting sleeve 12 is also rotatably provided outside the first mounting shaft 10, the screen drum 2 is fixedly connected to the mounting sleeve 12, and the mounting sleeve 12 includes a material guide section 13 located in the screen drum 2, and the beating rod 11 includes a mounting section 14 fixedly connected to the first mounting shaft 10 and a first beating section 15 fixedly connected to the mounting section 14, and the mounting section 14 is located in the material guide section 1 3 and all the first beating segments 15 are equidistantly surrounded by the guide segment 13. The guide segment 13 is a structure that is small at the top and large at the bottom. The first beating segments 15 are inclined and the higher end is close to the first mounting shaft 10. The mounting sleeve 12 enables the screen drum 2 and the first mounting shaft 10 to achieve relative rotation. At the same time, the first beating segments 15 are driven by the mounting segment 14 to rotate around the guide segment 13 to break up the material. The wall of the guide segment 13 is a ring-shaped inclined surface, and the material will move downward on the outer wall. In more detail, a second beating segment 16 is also fixedly arranged obliquely upward at the end of the mounting segment 14, and it also rotates together to provide beating for the material.

[0026] like Figure 1 , 2As shown, a mounting frame 17 for supporting the casing 1 is fixedly provided below the casing 1, and the mounting frame 17 provides a supporting basis for the casing 1. A second motor 18 is also installed on the mounting frame 17, and the second motor 18 is connected to a second mounting shaft 19, and the second mounting shaft 19 is fixedly connected to the grinding cylinder 4. The operation of the second motor 18 drives the second mounting shaft 19 to rotate, thereby driving the grinding cylinder 4 to rotate, so that the material in the grinding channel 6 can be ground. In more detail, a hardened cylinder 20 surrounding the grinding cylinder 4 is fixedly connected to the inner wall of the lower end of the casing 1, and a plurality of reinforcing ribs 21 are protruding from the inner wall of the hardened cylinder 20, and all the reinforcing ribs 21 are in a structure with the upper and lower ends turned outward. The material of the hardened cylinder 20 strengthens the hardness of this part, and the reinforcing ribs 21 provide further rolling and shearing effects, which can further improve the grinding efficiency. The hopper 8 is fixedly connected with a protective cylinder 22 surrounding the outside of the second motor 18, and the protective cylinder 22 also extends into the grinding cylinder 4 and slides in contact with the inner wall of the grinding cylinder 4. The protective cylinder 22 is isolated between the second motor 18 and the discharge hopper 8 to prevent the material from overflowing to the second motor 18 and causing adverse effects on the second motor 18. At the same time, the upper end of the protective cylinder 22 extends outward and contacts the inner wall of the grinding cylinder 4, and also provides rotation support for the grinding cylinder 4 to ensure that the grinding cylinder 4 runs more smoothly; in further detail, the grinding cylinder 4 is bullet-shaped with the small end facing upward, and the second mounting shaft 19 extends upward and is fixedly connected to the inner top surface of the grinding cylinder 4. This shape enables the upper large and lower small structure of the grinding channel 6 to be realized. At the same time, the outer wall of the grinding cylinder 4 is also inclined, so that the material can move downward more smoothly as the grinding progresses, ensuring that the grinding continues.

[0027] like Figure 1 As shown, in a further exemplary embodiment, a sieve plate 23 is fixedly sleeved on the first mounting shaft 10, and the sieve plate 23 is also fixedly connected to the inner wall of the ball mill 3. A plurality of second sieve holes are also arranged on the sieve plate 23, and the grinding balls 5 are arranged above and below the sieve plate 23. The sieve plate 23 divides the ball mill 3 into two chambers, each of which is provided with grinding balls 5. The aperture of the second sieve hole is larger than the leakage hole and smaller than the first sieve hole. In this way, the material is subjected to two-stage ball milling, which can further improve the efficiency of ball milling.

[0028] like Figure 1As shown, the ball mill 3 is a structure with a larger upper end and a smaller lower end in an arc shape. A support ring 24 is fixedly provided in the casing 1 to rotatably support the outer wall of the ball mill 3, and all the leakage holes are located in the support ring 24. This is equivalent to a larger chamber at the top and a smaller chamber at the bottom. The upper chamber can accommodate more grinding balls 5 and more materials, while the lower chamber accommodates fewer grinding balls 5 and less materials after one ball milling. Reasonable use of space makes the contact efficiency between the materials and the grinding balls 5 higher, achieving a better overall ball milling efficiency. At the same time, the support ring 24 provides a larger area of ​​rotation support for the ball mill 3, so that the ball mill 3 can rotate more smoothly.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A sintered material vertical grinding system, characterized in that: The invention comprises a casing, wherein a sieve cylinder fixedly connected thereto, a ball mill cylinder rotatably connected thereto, and a grinding cylinder rotatably arranged therewith coaxially are arranged in sequence from top to bottom, the sieve cylinder is provided with a plurality of first sieve holes, the ball mill cylinder is provided with a plurality of leakage holes, wherein a beating assembly is arranged in the sieve cylinder, grinding balls are arranged in the ball mill cylinder, a grinding channel which gradually becomes smaller from top to bottom is arranged between the outside of the grinding cylinder and the inner wall of the lower end of the casing; the casing is also provided with a feed hopper connected to the sieve cylinder, and a discharge hopper connected to the grinding channel.

2. The sintered material vertical grinding system according to claim 1, characterized in that: A first motor is installed on the casing, and the first motor is connected to a first installation shaft. The first installation shaft rotates and extends into the casing and rotates through the screen cylinder to be fixedly connected to the ball mill cylinder.

3. The sintered material vertical grinding system according to claim 2, characterized in that: The whipping assembly includes a plurality of whipping rods fixedly connected to the first mounting shaft.

4. The sintered material vertical grinding system according to claim 2, characterized in that: A sieve plate is fixedly sleeved on the first mounting shaft, and the sieve plate is fixedly connected to the inner wall of the ball mill. A plurality of second sieve holes are arranged on the sieve plate, and the grinding balls are arranged above and below the sieve plate.

5. The sintered material vertical grinding system according to claim 1, characterized in that: A mounting frame for supporting the housing is also fixedly provided below the housing, and a second motor is mounted on the mounting frame. The second motor is connected to a second mounting shaft, and the second mounting shaft is fixedly connected to the grinding cylinder.

6. The sintered material vertical grinding system according to claim 5, characterized in that: The discharging hopper is fixedly connected with a protective cylinder surrounding the second motor, and the protective cylinder also extends into the grinding cylinder and is in sliding contact with the inner wall of the grinding cylinder.

7. The sintered material vertical grinding system according to claim 6, characterized in that: The grinding cylinder is in a bullet shape with a small end facing upwards, and the second mounting shaft extends upwards and is fixedly connected to the inner top surface of the grinding cylinder.

8. The sintered material vertical grinding system according to claim 4, characterized in that: The ball mill cylinder is a structure with a large upper end and a reduced arc-shaped lower end. A support ring for rotatably supporting the outer wall of the ball mill cylinder is fixedly arranged in the casing, and all the leakage holes are located in the support ring.

9. The sintered material vertical grinding system according to claim 1, characterized in that: A hardening cylinder surrounding the grinding cylinder is fixedly connected to the inner wall of the lower end of the housing, and a plurality of reinforcing ribs are protrudingly provided on the inner wall of the hardening cylinder, and all the reinforcing ribs are in a structure with upper and lower ends turned outward.

10. The sintered material vertical grinding system according to claim 3, characterized in that: A mounting sleeve is rotatably provided outside the first mounting shaft, the sieve cylinder is fixedly connected to the mounting sleeve, and the mounting sleeve includes a material guide section located inside the sieve cylinder, the beating rod includes a mounting section fixedly connected to the first mounting shaft and a first beating section fixedly connected to the mounting section, the mounting section is located above the material guide section and all the first beating sections are equidistantly surrounding the material guide section, the material guide section is a structure that is small at the top and large at the bottom, the first beating section is inclined and the higher end is close to the first mounting shaft.

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