Energy-saving grinding device for slag micro-powder

Abstract

The application relates to an energy-saving grinding device for slag micro-powder, and belongs to the technical field of material grinding. The device comprises a vertically arranged shell, a feeding port is arranged above the shell, a first-stage grinding device and a second-stage grinding device are sequentially arranged in the shell in the vertical direction, a horizontal and detachable filter screen is arranged above the first-stage grinding device, a dispersion block with a rotating rod is arranged above the filter screen, and a supporting rod with a roller is horizontally arranged on the rotating rod; a vibrating screen and a vibrating assembly are arranged between the first-stage grinding roller group and the second-stage grinding roller group, the screen is arranged in an inclined mode, a material leakage port is arranged on the side with a lower height of the screen, a slag discharging device is arranged below the material leakage port, a powder discharging port is arranged at the second-stage grinding roller group, and a rotating assembly for coaxially rotating a slag conveying roller and a driving roller is further arranged. The application has the effects of two-stage grinding of slag, screening of materials through the vibrating screen, dispersion of feeding materials through the dispersion block, realization of energy-saving grinding, and improvement of grinding efficiency and quality.

Description

Technical Field

[0001] This application relates to the technical field of material grinding, and in particular to an energy-saving grinding device for slag powder. Background Technology

[0002] Currently, in the field of slag powder processing, with the continuous development of industry, the demand for slag powder is increasing daily, and it has wide applications in many fields such as construction and road engineering. The effective utilization of slag powder can not only improve resource utilization and reduce the environmental impact of slag waste, but also provide high-quality raw materials for related industries, promoting the development of industries such as construction. With the continuous improvement of requirements for the quality and output of slag powder, efficient and energy-saving grinding technology has become a key focus of the industry.

[0003] In the traditional process of slag powder grinding, various methods are typically employed to achieve the desired grinding effect. One common approach is to use a single grinding unit, directly feeding the slag into the grinding equipment for grinding. This type of grinding unit is generally horizontal, using the relative motion of the grinding disc and rollers to compress and grind the slag. Another method involves using multi-stage grinding units connected in series, passing the slag through multiple grinding units sequentially for repeated grinding to improve the grinding efficiency. Yet another approach is to omit effective screening devices during the grinding process, relying instead on subsequent air classification or other methods to screen and grade the ground material.

[0004] However, existing slag powder grinding methods have significant drawbacks. The horizontal structure of a single grinding unit results in uneven material distribution during grinding, leading to poor grinding efficiency. While multi-stage grinding equipment connected in series can improve grinding efficiency, it requires a large footprint and consumes a lot of energy. Methods without effective screening devices result in uneven material fineness after grinding, failing to meet the production requirements of high-quality slag powder. Utility Model Content

[0005] In order to overcome the above problems, this application provides an energy-saving grinding device for slag powder.

[0006] The energy-saving grinding device for slag powder provided in this application adopts the following technical solution: An energy-saving grinding device for slag powder includes a shell, which is vertically arranged with a feed inlet at the top. Inside the shell, a primary grinding device and a secondary grinding device are arranged vertically in sequence. The primary grinding device includes a primary grinding roller assembly that is rotatably connected to the shell. A filter screen is arranged above the primary grinding device and is horizontally arranged and detachably connected to the shell. The secondary grinding device includes a secondary grinding roller assembly that rotates relative to the shell and is located below the primary grinding roller assembly. A vibrating screen is arranged between the primary and secondary grinding roller assemblies. A vibration component for driving the screen vibration is installed inside the shell.

[0007] By adopting the above technical solution, the vertically arranged outer shell, combined with the upper feed port, facilitates slag feeding; the primary grinding device and the secondary grinding device are arranged in sequence to achieve two-stage grinding and improve grinding efficiency; the detachable filter screen can perform preliminary filtration of slag; the vibrating screen and vibrating components work together to screen slag that meets the particle size requirements into the secondary grinding device, thereby improving grinding quality.

[0008] Optionally, a dispersing block is provided above the filter screen. The top of the dispersing block is arc-shaped and located at the center of the feed inlet. The edge of the dispersing block and the feed inlet form a feeding channel. A rotating rod is fixed at the bottom of the dispersing block. The rotating rod is rotatably connected to the filter screen, and the rotation axis of the dispersing block is in the vertical direction.

[0009] By adopting the above technical solution, when the slag powder enters the device, the arc-shaped design at the top of the dispersing block can disperse the slag powder in all directions, avoiding the accumulation of material at the feed inlet, and allowing it to enter the device evenly through the feed channel; the rotating rod drives the dispersing block to rotate, which can further disperse the material evenly on the filter screen and improve the subsequent grinding efficiency.

[0010] Optionally, the rotating rod is fixed with multiple support rods at circumferential intervals, and the end of the support rod away from the rotating rod is rotatably connected to a roller, which abuts against the filter screen.

[0011] By adopting the above technical solution, the rotating rod drives the support rod and roller to rotate, and the roller rolls on the filter screen, which can effectively prevent the material from accumulating on the filter screen, improve the filtration efficiency of the filter screen, and ensure that the slag powder can smoothly enter the primary grinding unit for grinding.

[0012] Optionally, the vibration assembly includes a cam, a cam shaft, and a drive motor. The drive motor is fixed to the housing and the cam. The screen itself is inclined, and one end of the screen is fixed to the cam shaft, which slides along the edge of the cam profile.

[0013] By adopting the above technical solution, the drive motor drives the cam to rotate, causing the cam shaft to slide along the edge of the cam profile, thereby driving the inclined screen to vibrate, which can effectively screen materials and improve the efficiency and accuracy of material screening.

[0014] Optionally, the screen is provided with a spring rod, which is vertically fixed to the inner wall of the outer casing, and the movable end of the spring rod is fixed to the screen.

[0015] By adopting the above technical solution, the elastic rod can provide buffering and elastic support for the vibration of the screen, reduce the impact force on the outer shell when the screen vibrates, ensure that the screen can vibrate and screen stably and continuously, and improve the stability and reliability of the device operation.

[0016] Optionally, the screen itself has a material discharge port at one end with a relatively low tilt angle, and a slag discharge device is provided below the material discharge port. The slag discharge device includes a slag conveying roller and a first receiving shell. The first receiving shell is fixed to the outer shell, the slag conveying roller rotates relative to the first receiving shell, and a corresponding slag discharge port is provided on the outer shell.

[0017] By adopting the above technical solution, slag that does not meet the grinding requirements on the screen can fall into the slag discharge device through the material discharge port. The slag is discharged from the shell by the rotation of the slag conveying roller, so that it can be recycled or ground again. This achieves effective discharge of unqualified slag and avoids affecting the grinding effect and efficiency.

[0018] Optionally, the secondary grinding roller assembly is located below the screen. The secondary grinding roller assembly includes a second receiving shell, a driving roller, and a driven roller. The second receiving shell is fixed to the outer shell. The driving roller rotates coaxially with the slag conveying roller. A rotating assembly for coaxial rotation of the two is provided inside the outer shell. A wheel assembly for driving the driven roller to rotate synchronously is provided between the driving roller and the driven roller. A powder discharge port is correspondingly opened on the outer shell.

[0019] By adopting the above technical solution, the secondary grinding roller group can effectively receive the material falling from the screen. The coaxial rotation of the drive roller and the slag conveying roller can realize the effective transmission of power, reduce the setting of additional power devices, reduce energy consumption, and drive the driven roller to rotate synchronously to ensure the coordination and stability of the grinding process. The discharge port facilitates the discharge of the ground material and improves production efficiency.

[0020] Optionally, the rotating assembly includes a main motor, a driving wheel, a driven wheel, and a rotating shaft. The main motor is fixedly connected to the housing and the driving wheel. The two ends of the rotating shaft are fixedly connected to the slag conveying roller and the driving roller, respectively. The driven roller is coaxially fixed to the rotating shaft, and the driving wheel and the driven wheel mesh.

[0021] By adopting the above technical solution, the main motor drives the active wheel to rotate, and the driven wheel and the rotating shaft realize the coaxial rotation of the slag conveying roller and the active roller, which enables the slag discharge and grinding operations to be carried out simultaneously, improving the continuity and efficiency of slag powder grinding.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The vertically arranged outer shell, combined with the primary and secondary grinding devices, can improve the grinding effect of slag and increase the grinding efficiency; 2. The filter screen can make the slag after the primary grinding device more uniform and reduce the slag from sticking together. The screen can screen the slag after the primary grinding. Small slag particles that meet the requirements enter the secondary grinding device for secondary grinding. Larger particles that do not meet the requirements will enter the slag conveying roller from the discharge port and be discharged and collected, or poured in from the feed port for secondary grinding. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional structural diagram to show the overall embodiment.

[0024] In the diagram, 1. Outer shell; 11. Feed hopper; 2. Primary grinding device; 3. Secondary grinding device; 31. Second receiving shell; 32. Driven roller; 33. Driven roller; 4. Filter screen; 41. Dispersing block; 42. Rotating rod; 43. Support rod; 44. Roller; 45. Rotating motor; 5. Screen; 51. Vibration assembly; 511. Cam; 512. Cam shaft; 513. Drive motor; 52. Elastic rod; 53. Slide rod; 54. Discharge port; 6. Slag discharge device; 61. Slag conveying roller; 62. First receiving shell; 7. Rotating assembly; 71. Main motor; 72. Drive wheel; 73. Driven wheel; 74. Rotating shaft. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.

[0026] This application discloses an energy-saving grinding device for slag powder.

[0027] refer to Figure 1 An energy-saving grinding device for slag powder includes a shell 1, which is vertically arranged. A feed hopper 11 is fixed on the top of the shell 1 and is configured as a feed inlet. A slag discharge port and a powder discharge port are respectively opened on both sides of the shell 1.

[0028] refer to Figure 1 and Figure 2Inside the outer casing 1, from top to bottom vertically, there are a dispersing block 41, a filter screen 4, a primary grinding device 2, a sieve 5, and a secondary grinding device 3. The filter screen 4 is horizontally arranged and detachably connected to the inner wall of the outer casing 1. The dispersing block 41 is hemispherical and is located at the center of the feed hopper 11, forming a feeding channel with the inner wall of the feed hopper 11 to disperse the slag. A rotating rod 42 is vertically fixed at the bottom of the dispersing block 41, and a rotating motor 45 is fixed at the bottom of the rotating rod 42. The rotating motor 45 is fixed on the filter screen 4. Three support rods 43 are fixed circumferentially at intervals on the rotating rod 42. The three support rods 43 are arranged in an equilateral triangle. The ends of the three support rods 43 away from the rotating rod 42 are rotatably connected to rollers 44. While the rollers 44 revolve with the support rods 43, they also rotate on the filter screen 4, which can perform preliminary crushing and grinding of the slag, reducing the adhesion or agglomeration of the slag. The difficult-to-clean residue after filtration can be cleaned by disassembling the filter screen 4.

[0029] refer to Figure 1 and Figure 2 The primary grinding device 2 includes a primary grinding roller assembly, which is rotatably connected to the outer shell 1. The screen 5 is located below the primary grinding roller assembly. The slag channel below the screen 5 inside the outer shell 1 is larger than the feed channel above it. The screen 5 is inclined and located below the bent portion of the inner wall of the outer shell 1.

[0030] A vibration assembly 51 is provided on the screen 5. The vibration assembly 51 includes a cam 511, a cam shaft 512, and a drive motor 513. The drive motor 513 is fixed to the outer shell 1, the drive motor 513 is fixed to the cam 511, and the cam shaft 512 is fixed to the screen 5. A groove is provided at the edge contour of the cam 511, and the cam shaft 512 slides in the groove. A spring rod 52 is vertically provided on the screen 5 opposite the cam 511. A spring block slides on the spring rod 52. The screen 5 is fixed to the spring block. When the drive motor 513 drives the cam 511 to rotate, the cam 511 drives the screen 5 to vibrate reciprocally in the vertical direction. At the same time, the spring block compresses the spring in the spring rod 52, thereby providing vibration reduction and buffering for the screen 5. A sliding sleeve is also fixed on the screen 5. A sliding rod 53 is vertically fixed inside the outer shell 1. The sliding sleeve slides along the length of the sliding rod 53, which can guide the vibration of the screen 5 and increase the stability.

[0031] refer to Figure 1 and Figure 2 The screen 5 has a material discharge port 54 at one end with a lower tilt angle. A slag discharge device 6 is provided below the material discharge port 54. The slag discharge device 6 includes a slag conveying roller 61 and a first receiving shell 62. The first receiving shell 62 is horizontally arranged and fixedly connected to the outer shell 1.

[0032] The secondary grinding device 3 includes a secondary grinding roller assembly. The secondary grinding roller assembly and the slag discharge device 6 are set at the same horizontal height. The secondary grinding roller assembly includes a second receiving shell 31, a driving roller 32 and a driven roller 33. The second receiving shell 31 is set horizontally and fixedly connected to the outer shell 1. The driving roller 32 rotates coaxially with the slag conveying roller 61. A wheel assembly is set between the driving roller 32 and the driven roller 33. The wheel assembly drives the driving roller 32 and the driven roller 33 to rotate synchronously, and at the same time outputs the slag that has been ground twice to the powder discharge port.

[0033] The outer casing 1 is equipped with a rotating assembly 7, which includes a main motor 71, a driving wheel 72, a driven wheel 73, and a rotating shaft 74. The main motor 71 is vertically fixed at the bottom of the outer casing 1. The main motor 71 is coaxially fixed with the driving wheel 72. The two ends of the rotating shaft 74 are fixedly connected to the slag conveying roller 61 and the driving roller 32, respectively. The driven roller 33 is coaxially fixed with the rotating shaft 74. The driving wheel 72 and the driven wheel 73 are both reversing gears, and the driving wheel 72 and the driven wheel 73 mesh.

[0034] Screen 5 screens the slag that has passed the first-stage crushing and filtration. Smaller slag particles that meet the grinding standards fall directly into the second-stage grinding device 3 and enter the second-stage grinding. The slag powder that meets the requirements is output from the discharge port. Larger slag particles on screen 5 fall from the discharge port 54 onto the slag conveying roller 61 and are output from the discharge port. They can be collected uniformly or directly poured back into the feed port for further grinding.

[0035] The implementation principle of the energy-saving grinding device for slag powder in this embodiment is as follows: Slag enters from the feed inlet and first falls onto the dispersing block 41. Then, the slag is evenly dispersed onto the filter screen 4. When the dispersing block 41 rotates, multiple support rods 43 drive the roller 44 to rotate, reducing the adhesion and agglomeration of slag particles, thereby reducing larger slag particles. The qualified slag falls into the primary grinding device 2 for primary grinding. The slag after primary grinding falls onto the vibrating screen 5. The vibrating component 51 drives the vibrating screen 5 to vibrate, further screening out finer slag which falls into the secondary grinding device 3 for secondary grinding. This vertically arranged multi-stage grinding and screening structure makes the slag grinding more thorough, reduces the equipment footprint and energy consumption, and improves the grinding effect and production efficiency, representing a significant improvement and enhancement compared to existing technologies.

[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving grinding device for slag powder, comprising a shell (1), characterized in that: The outer shell (1) is vertically arranged, and a feed inlet is provided at the top of the outer shell (1). Inside the outer shell (1), a primary grinding device (2) and a secondary grinding device (3) are arranged in sequence from the vertical direction. The primary grinding device (2) includes a primary grinding roller group, which is rotatably connected to the outer shell (1). A filter screen (4) is provided above the primary grinding device (2), which is horizontally arranged and detachably connected to the outer shell (1). The secondary grinding device (3) includes a secondary grinding roller group, which is rotatable relative to the outer shell (1) and is located below the primary grinding roller group. A vibrating screen (5) is provided between the primary grinding roller group and the secondary grinding roller group. A vibrating component (51) for driving the screen (5) to vibrate is provided inside the outer shell (1).

2. The energy-saving grinding device for slag powder according to claim 1, characterized in that: A dispersing block (41) is provided above the filter screen (4). The top of the dispersing block (41) is arc-shaped and is located at the center of the feed inlet. The edge of the dispersing block (41) forms a feeding channel with the feed inlet. A rotating rod (42) is fixed at the bottom of the dispersing block (41). The rotating rod (42) is rotatably connected to the filter screen (4), and the rotation axis of the dispersing block (41) is in the vertical direction.

3. The energy-saving grinding device for slag powder according to claim 2, characterized in that: The rotating rod (42) is fixed with multiple support rods (43) at circumferential intervals. The end of the support rod (43) away from the rotating rod (42) is rotatably connected to a roller (44), and the roller (44) abuts against the filter screen (4).

4. The energy-saving grinding device for slag powder according to claim 1, characterized in that: The vibration assembly (51) includes a cam (511), a cam shaft (512), and a drive motor (513). The drive motor (513) is fixed to the outer shell (1) and the drive motor (513) is fixed to the cam (511). The screen (5) is inclined and one end of the screen (5) is fixed to the cam shaft (512). The cam shaft (512) slides along the edge of the cam (511).

5. The energy-saving grinding device for slag powder according to claim 4, characterized in that: The screen (5) is provided with a spring rod (52), which is vertically fixed to the inner wall of the outer shell (1), and the movable end of the spring rod (52) is fixed to the screen (5).

6. The energy-saving grinding device for slag powder according to claim 5, characterized in that: The screen (5) has a material discharge port (54) at one end with a relatively low tilt angle. A slag discharge device (6) is provided below the material discharge port (54). The slag discharge device (6) includes a slag conveying roller (61) and a first receiving shell (62). The first receiving shell (62) is fixed to the outer shell (1). The slag conveying roller (61) rotates relative to the first receiving shell (62). A slag discharge port is correspondingly provided on the outer shell (1).

7. The energy-saving grinding device for slag powder according to claim 6, characterized in that: The secondary grinding roller assembly is located below the screen (5). The secondary grinding roller assembly includes a second receiving shell (31), a drive roller (32), and a driven roller (33). The second receiving shell (31) is fixed to the outer shell (1). The drive roller (32) rotates coaxially with the slag conveying roller (61). A rotating assembly (7) for coaxial rotation of the two is provided inside the outer shell (1). A wheel assembly for driving the driven roller (33) to rotate synchronously is provided between the drive roller (32) and the driven roller (33). A powder discharge port is correspondingly opened on the outer shell (1).

8. The energy-saving grinding device for slag powder according to claim 7, characterized in that: The rotating assembly (7) includes a main motor (71), a drive wheel (72), a driven wheel (73), and a rotating shaft (74). The main motor (71) is fixedly connected to the outer casing (1), and the main motor (71) is fixedly connected to the drive wheel (72). The two ends of the rotating shaft (74) are fixedly connected to the slag conveying roller (61) and the drive roller (32) respectively. The driven roller (33) is coaxially fixed with the rotating shaft (74), and the drive wheel (72) and the driven wheel (73) mesh.

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