Superfine grinding and rolling equipment for superfine slag powder

Abstract

The utility model relates to the technical field of slag grinding, and discloses superfine grinding and rolling equipment for superfine slag powder, which comprises a first grinding shell, a second grinding shell and a third grinding shell, and a plurality of grinding blocks with different diameters are arranged in a grinding cylinder; the fine grinding structure comprises a fine grinding shell, a grinding disc and rolling cylinders, the fine grinding shell is fixedly connected with the first grinding shell, the grinding disc is fixedly connected with the fine grinding shell, a plurality of rolling cylinders capable of rolling on the grinding disc are arranged on the side wall of the main shaft, and a plurality of grinding blocks rotate in the first grinding shell, the second grinding shell and the third grinding shell; slag is sequentially ground from top to bottom, multi-stage and layered grinding of the slag is achieved, it can be guaranteed that particles are gradually ground from top to bottom, blocking caused by large blocky particles is avoided, and the phenomena of low efficiency and large abrasion caused by grinding of a single grinding block are improved; and the convex ribs can also push the materials downwards to promote downward discharging of the materials.

Description

Technical Field

[0001] This utility model relates to the field of slag grinding technology, and in particular to a slag micro powder ultrafine grinding roller pressing device. Background Technology

[0002] Slag is a byproduct of ore smelting. Slag has many uses when recycled. It can be used as a building material for paving roads, or it can be ground into slag powder for processing cement and other products.

[0003] A prior art disclosure (publication number: CN118950193A) discloses a grinding mill for producing ultrafine slag powder, comprising a cylindrical outer shell, a drive shaft located at the central axis of the top of the cylindrical outer shell, and a grinding cone fixedly installed at the bottom of the drive shaft; a rotating drum fixedly installed at the bottom of the grinding cone, an annular grinding disc fixedly installed on the inner wall of the cylindrical outer shell, the annular grinding disc being sleeved on the outer side of the bottom of the rotating drum, three sets of grinding roller assemblies arrayed on the outer wall of the rotating drum, and three sets of through grooves arrayed on the circumferential surface of the rotating drum; an installation cover fixedly installed on the inner wall of the cylindrical outer shell, the installation cover being located directly below the annular grinding disc, an annular screening assembly fixedly installed on the bottom wall of the fan-shaped groove, and a through fan-shaped groove arrayed on the bottom of the installation cover, wherein the slag, after being ground by the grinding roller assembly and the annular grinding disc, passes through the through groove and falls onto the annular screening assembly.

[0004] Existing technology mainly uses a grinding cone and a shell to grind slag. Although multiple grinding mechanisms are set below, as the first part to come into contact with the slag, relying on a single grinding cone to initially crush the slag results in a large operating load, rapid wear, and frequent maintenance. The slag crushed by a single grinding cone is difficult to ensure that the particles are fine, which increases the workload of other fine grinding parts and easily leads to material accumulation and blockage.

[0005] Therefore, we propose a slag micro powder ultrafine grinding roller pressing device. Utility Model Content

[0006] The present invention mainly addresses the technical problem of high load and rapid wear in the initial grinding of slag using a single conical disc, and provides a slag micro powder ultrafine grinding roller pressing device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a slag powder ultrafine grinding roller pressing device, comprising:

[0008] A first grinding shell, a second grinding shell, and a third grinding shell are fixedly connected from top to bottom to form a grinding cylinder. The grinding cylinder contains a number of grinding blocks of different diameters. A main shaft is fixedly installed on each grinding block. The main shaft is driven by a motor.

[0009] A fine grinding structure is set below the first grinding shell for grinding materials. The fine grinding structure includes a fine grinding shell, a grinding disc, and rollers. The fine grinding shell is fixedly connected to the first grinding shell, and the grinding disc is fixedly connected to the fine grinding shell. Several rollers that can roll on the grinding disc are arranged on the side wall of the main shaft. The rollers can crush the materials crushed by the grinding blocks.

[0010] In a preferred embodiment of this utility model, the first grinding shell, the second grinding shell, and the third grinding shell are all funnel structures, and the inner diameters of the first grinding shell, the second grinding shell, and the third grinding shell increase uniformly.

[0011] In a preferred embodiment of this utility model, the grinding block is formed into a frustum, and a circular hole is provided at the center of the end of the grinding block. The main shaft passes through the circular hole and is connected to the grinding block.

[0012] In a preferred embodiment of this utility model, a plurality of raised ribs are fixedly connected to the circumferential surface of the grinding block. The raised ribs extend spirally along the circumferential surface of the grinding block, and the horizontal cross-section of the raised ribs is semi-circular. The raised ribs are integrally formed with the grinding block.

[0013] In a preferred embodiment of this utility model, the precision grinding structure further includes support rods, the main shaft is fixedly connected to several support rods, and the roller pressing cylinder is rotatably installed below the corresponding support rods.

[0014] In a preferred embodiment of this utility model, the support rod forms a U-shaped bracket, and the two ends of the roller cylinder are rotatably connected to the inner wall of the support rod.

[0015] In a preferred embodiment of this utility model, the precision grinding structure further includes a discharge pipe and blades. The blades are fixedly connected to the main shaft, the discharge pipe is fixedly connected to the precision grinding shell, and the blades extend into the discharge pipe cavity.

[0016] Beneficial effects

[0017] This utility model provides a slag powder ultrafine grinding roller pressing device. It has the following beneficial effects:

[0018] 1. This slag micron ultrafine grinding roller pressing equipment, by setting up a first grinding shell, a second grinding shell and a third grinding shell with different diameters and interconnected, and by having multiple grinding blocks rotate in the first grinding shell, the slag is ground from top to bottom sequentially, realizing multi-stage and layered grinding of the slag, which can ensure that the particles are gradually crushed from top to bottom, avoid the blockage caused by large lumps of particles, and improve the low efficiency and high wear caused by grinding by a single grinding block. The multiple ribs on the grinding blocks can not only increase the extrusion and grinding effect of the slag, but also push the material downward in a spiral distribution, promoting the downward discharge of the material.

[0019] 2. This slag micro powder ultrafine grinding roller pressing equipment uses multiple roller pressing cylinders to roll and crush the pulverized material on the grinding disc as the main shaft rotates, thereby achieving fine grinding of slag. The slag is gradually and evenly crushed into fine powder during the discharge process from top to bottom. The vertical layout makes the lateral volume of the whole machine small and the floor space small.

[0020] 3. This slag micro powder ultrafine grinding roller pressing equipment, by setting spiral blades, uses the main shaft to drive the blades to rotate and squeeze the finely ground slag into the discharge pipe to achieve material discharge and suppress the phenomenon of material blockage in the fine grinding shell. Attached Figure Description

[0021] Figure 1 This is a perspective view of the entire utility model;

[0022] Figure 2 This is a partial sectional view of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the precision-machined shell of this utility model;

[0024] Figure 4 This is a perspective view of the roller pressing cylinder mounted on the main shaft of this utility model;

[0025] Figure 5 This is a perspective view of the grinding block of this utility model.

[0026] Legend: 10. First grinding shell; 11. Second grinding shell; 12. Third grinding shell; 13. Grinding block; 14. Main shaft; 15. Rib; 20. Fine grinding shell; 21. Discharge pipe; 22. Grinding disc; 23. Roller cylinder; 24. Support rod; 25. Blade. Detailed Implementation

[0027] A slag powder ultrafine grinding roller pressing device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes:

[0028] A first grinding shell 10, a second grinding shell 11, and a third grinding shell 12 are fixedly connected from top to bottom to form a grinding cylinder. The grinding cylinder contains several grinding blocks 13 of varying diameters. A main shaft 14 is fixedly mounted on each grinding block 13 and driven by a motor. All three grinding shells (10, 11, and 12) have funnel-shaped structures with uniformly increasing inner diameters. Each grinding block 13 forms a frustum, with a circular hole at the center of its end. The main shaft 14 passes through this hole and connects to the grinding block 13 for grinding. Several ribs 15 are fixedly connected to the circumferential surface of the grinding block 13. The ribs 15 extend spirally along the circumferential surface of the grinding block 13. The horizontal cross section of the ribs 15 is semi-circular. The ribs 15 and the grinding block 13 are integrally formed. Specifically, the motor is fixedly installed at the bottom of the fine grinding shell 20. The main shaft 14 is fixedly connected to the output shaft of the motor. The grinding blocks 13 with different diameters refer to the diameters changing according to the first grinding shell 10, the second grinding shell 11, and the third grinding shell 12. The grinding blocks 13 in the first grinding shell 10 have the largest diameter, and thus the grinding gap between the inner wall of the first grinding shell 10 and the grinding blocks 13 is the smallest. By analogy, the slag will pass through the gradually narrowing grinding gap from top to bottom and be gradually ground up.

[0029] The motor is connected to the power supply and drives the main shaft 14 to rotate in a circular motion. By setting up a first grinding shell 10, a second grinding shell 11, and a third grinding shell 12 with different diameters and interconnected, multiple grinding blocks 13 rotate in the first grinding shell 10, the second grinding shell 11, and the third grinding shell 12. The slag is ground from top to bottom, realizing multi-stage and layered grinding of the slag. This ensures that the particles are gradually crushed from top to bottom, avoids large lumps of particles causing material blockage, and improves the low efficiency and high wear caused by grinding with a single grinding block 13. The multiple ribs 15 on the grinding block 13 can not only increase the squeezing and grinding effect of the slag, but also push the material downwards in a spiral distribution, promoting the downward discharge of the material.

[0030] like Figure 3 and Figure 4 As shown, a fine grinding structure is set below the first grinding shell 10 for grinding materials. The fine grinding structure includes a fine grinding shell 20, a grinding disc 22 and a roller press 23. The fine grinding shell 20 is fixedly connected to the first grinding shell 10, and the grinding disc 22 is fixedly connected to the fine grinding shell 20. Several roller presses 23 that can roll on the grinding disc 22 are provided on the side wall of the main shaft 14. The roller presses 23 can crush the materials crushed by the grinding block 13.

[0031] Among them, the roller press 23 is a cylinder. Multiple roller presses 23 rotate with the main shaft 14 to roll and crush the material on the grinding disc 22, thereby achieving fine grinding of slag. The slag is gradually and evenly crushed into fine powder during the discharge process from top to bottom. The vertical layout makes the lateral volume of the whole machine small and the floor space small.

[0032] like Figure 3 As shown, the precision grinding structure also includes support rods 24. The main shaft 14 is fixedly connected to several support rods 24. The roller pressing cylinder 23 is rotatably installed below the corresponding support rod 24. The support rods 24 form a U-shaped bracket. The two ends of the roller pressing cylinder 23 are rotatably connected to the inner wall of the support rod 24. The support rods 24 are used to install and connect the roller pressing cylinder 23 to ensure the stability of the movement of the roller pressing cylinder 23.

[0033] like Figure 3 and Figure 4 As shown, the fine grinding structure also includes a discharge pipe 21 and blades 25. Blades 25 are fixedly connected to the main shaft 14, and discharge pipe 21 is fixedly connected to the fine grinding shell 20. Blades 25 extend into the cavity of discharge pipe 21. By setting spiral blades 25, the main shaft 14 drives the blades 25 to rotate and discharge the finely ground slag into the discharge pipe 21, thereby achieving material discharge and suppressing the phenomenon of material blockage in the fine grinding shell 20.

[0034] The working principle of this utility model is as follows: The motor drives the main shaft 14 to rotate circumferentially. By setting up a first grinding shell 10, a second grinding shell 11, and a third grinding shell 12 with different diameters and interconnected, multiple grinding blocks 13 rotate in the first grinding shell 10, the second grinding shell 11, and the third grinding shell 12, and the slag is ground sequentially from top to bottom, realizing multi-stage and layered grinding of the slag. This ensures that the particles are gradually crushed from top to bottom. The crushed material falls into the fine grinding shell 20, and multiple rollers 23 roll and press the crushed material on the grinding disc 22 as the main shaft 14 rotates, realizing fine grinding of the slag. During the discharge process from top to bottom, the slag is gradually and evenly crushed into fine powder. Spiral blades 25 are set up, and the main shaft 14 drives the blades 25 to rotate, squeezing the finely ground slag into the discharge pipe 21 to realize the discharge.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A slag powder ultrafine grinding roller pressing device, characterized in that, include: The first grinding shell (10), the second grinding shell (11), and the third grinding shell (12) are fixedly connected from top to bottom to form a grinding cylinder. The grinding cylinder is provided with a number of grinding blocks (13) of different diameters. The grinding blocks (13) are fixedly mounted with a spindle (14), which is driven by a motor. The grinding structure is set below the first grinding shell (10) for grinding materials. The grinding structure includes a grinding shell (20), a grinding disc (22) and a roller (23). The grinding shell (20) is fixedly connected to the first grinding shell (10), and the grinding disc (22) is fixedly connected to the grinding shell (20). The side wall of the main shaft (14) is provided with several rollers (23) that can roll on the grinding disc (22). The rollers (23) can crush the materials crushed by the grinding block (13).

2. The slag micron powder ultrafine grinding roller pressing equipment according to claim 1, characterized in that: The first grinding shell (10), the second grinding shell (11) and the third grinding shell (12) are all funnel structures, and the inner diameter of the first grinding shell (10), the second grinding shell (11) and the third grinding shell (12) increases uniformly.

3. The slag micron powder ultrafine grinding roller pressing equipment according to claim 1, characterized in that: The grinding block (13) forms a frustum, and a circular hole is provided at the center of the end of the grinding block (13). The main shaft (14) passes through the circular hole and is connected to the grinding block (13).

4. The slag micron powder ultrafine grinding roller pressing equipment according to claim 1, characterized in that: The circumferential surface of the grinding block (13) is fixedly connected with several ribs (15). The ribs (15) extend spirally along the circumferential surface of the grinding block (13). The horizontal cross section of the ribs (15) is semi-circular. The ribs (15) and the grinding block (13) are integrally formed.

5. The slag micron powder ultrafine grinding roller pressing equipment according to claim 1, characterized in that: The precision grinding structure also includes support rods (24), the main shaft (14) is fixedly connected to several support rods (24), and the roller pressing cylinder (23) is rotatably installed below the corresponding support rods (24).

6. The slag micron powder ultrafine grinding roller pressing equipment according to claim 5, characterized in that: The support rod (24) forms a U-shaped bracket, and the two ends of the roller cylinder (23) are rotatably connected to the inner wall of the support rod (24).

7. The slag micron powder ultrafine grinding roller pressing equipment according to claim 1, characterized in that: The precision grinding structure also includes a discharge pipe (21) and blades (25). The blades (25) are fixedly connected to the main shaft (14), and the discharge pipe (21) is fixedly connected to the precision grinding shell (20). The blades (25) extend into the cavity of the discharge pipe (21).

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