A mixing and grinding machine for processing magnesite carbon bricks

Abstract

The utility model relates to the technical field of mixing mill, concretely relates to a mixing mill for magnesium -carbon brick processing, including support frame, still including the mixing mill mechanism for mixing and grinding material, mixing mill mechanism is located above support frame, and is equipped with the mixing structure for mixing to material first crushing again between the main shaft and mixing bucket inner wall. Advantageous effects: through the mutual cooperation of mixing structure and mixing mill mechanism two's material realizes the multiple effects of rolling, circumferential shearing, radial rubbing, increases the area of material mixing and grinding, increases the crushing and rubbing force between materials, makes the mixing between multiple materials more uniform, thereby reduces the time of mixing and grinding, improves the quality and the efficiency of material mixing and grinding.

Description

Technical Field

[0001] This utility model relates to the field of mixing mill technology, and in particular to a mixing mill for processing magnesia-carbon bricks. Background Technology

[0002] Magnesia-carbon bricks, as a composite refractory material, have many advantages such as high temperature resistance and corrosion resistance. They are mainly used in the lining of converters, AC electric arc furnaces, and DC electric arc furnaces, as well as in the slag line of steel ladles. Typically, a portion of recycled magnesia-carbon brick material is used as aggregate, mixed with an appropriate amount of carbon refractory materials and other refractory powders. The product is pressed after being mixed with a carbonaceous binder, and its performance is significantly improved and its service life is extended. Adding an appropriate amount of carbon refractory materials and other refractory powders to the recycled magnesia-carbon brick material and mixing and grinding it with a mixer ensures uniform mixing.

[0003] By comparing a magnesia-carbon brick processing mixer with patent publication number CN222469228U, it was found that in this design, the worm gear and worm wheel work together to drive the agitator blades to rotate. The agitator blades propel the brick material within the container, achieving uniform feeding from the feed chute into the mixing drum. However, during the mixing process, adhesion may occur between different materials, and larger pieces may require longer mixing times, potentially leading to uneven mixing. Therefore, this increases the mixing time and reduces the quality and efficiency of the mixing process. Utility Model Content

[0004] The purpose of this invention is to provide a mixing and grinding machine for processing magnesia-carbon bricks in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A mixing and grinding mill for processing magnesia-carbon bricks includes a support frame and a mixing and grinding mechanism for mixing and grinding materials, the mixing and grinding mechanism being located above the support frame.

[0007] The mixing and grinding mechanism includes a mixing drum mounted above a support frame. A main shaft is rotatably mounted on the upper part of the mixing drum. A rotary motor is mounted on the rotating end of the main shaft. The output end of the rotary motor is fixed to the rotating end of the main shaft via a coupling. A main mixing disc is fixed to the lower end of the main shaft. The lower end of the main mixing disc is conical. A feed chute is provided on the side wall of the mixing drum, and a solenoid valve is provided at the lower end. A mixing structure for crushing and then mixing materials is provided between the main shaft and the inner wall of the mixing drum.

[0008] Preferably, the mixing structure includes multiple secondary shafts disposed between the main shaft and the inner wall of the mixing drum. The multiple secondary shafts are distributed around the axis of the main shaft. A secondary mixing disc is fixed at the bottom of the secondary shaft. The bottom of the secondary mixing disc is arc-shaped. The inner wall of the mixing drum near the secondary mixing disc is arc-shaped. A drive structure for driving the multiple secondary shafts to rotate is provided between the main shaft and the secondary shafts.

[0009] Preferably, the drive structure includes a fixed sleeve disposed on the upper end of the main shaft, the fixed sleeve being rotatably connected to the main shaft and fixedly connected to the mixing drum, a large gear fixed at the bottom end of the fixed sleeve, a rotating plate disposed below the large gear, the rotating plate being fixedly connected to the main shaft, a secondary shaft being rotatably connected to the rotating plate, a small gear fixed at the top end of the secondary shaft, and the small gear meshing with the large gear.

[0010] Preferably, a spiral turning roller is provided above the main mixing disc. The spiral turning roller is fixedly connected to the main shaft. The spiral turning roller is a cone with the small end facing upward, and the pitch gradually increases from bottom to top.

[0011] Preferably, multiple kneading blocks are installed around the bottom of the main mixing mill, and the multiple kneading blocks are spirally distributed along the axis of the main mixing mill.

[0012] Preferably, a rotating frame is provided above the secondary mixing mill, and multiple cone plates are fixed on the side wall of the rotating frame. The rotating frame is fixedly connected to the secondary shaft.

[0013] Preferably, both the secondary mixing disc and the primary mixing disc are made of rubber, and the spiral turning roller is made of silicone.

[0014] Compared with existing technologies, the beneficial effects are as follows:

[0015] By combining the mixing structure and the grinding mechanism, multiple effects such as crushing, circumferential shearing, and radial kneading are achieved on the material. This increases the grinding area and the crushing and kneading force between the materials, making the mixture of multiple materials more uniform. In turn, the grinding time is reduced, and the quality and efficiency of the grinding are improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a spatial perspective view of a mixing and grinding mill for processing magnesia-carbon bricks as described in this utility model;

[0018] Figure 2This is a cross-sectional view of the internal structure of the mixing drum of a mixing mill for processing magnesium-carbon bricks as described in this utility model;

[0019] Figure 3 This is a schematic diagram of the mixing and grinding mechanism of a mixing and grinding mill for processing magnesia-carbon bricks as described in this utility model;

[0020] Figure 4 This is a partial structural diagram of the main mixing disc of a mixing mill for processing magnesia-carbon bricks as described in this utility model.

[0021] The annotations in the attached figures are explained as follows:

[0022] 100. Support frame; 201. Mixing drum; 202. Main shaft; 203. Rotary motor; 204. Fixing sleeve; 205. Rotating plate; 206. Large gear; 207. Small gear; 208. Sub-shaft; 209. Sub-mixing disc; 210. Main mixing disc; 211. Spiral turning roller; 212. Rotating frame; 213. Conical plate; 214. Kneading block; 215. Feed chute; 216. Solenoid valve. Detailed Implementation

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-4 As shown, a mixing mill for processing magnesia-carbon bricks includes a support frame 100 and a mixing mechanism for mixing materials, which is located above the support frame 100.

[0026] In this embodiment: the mixing and grinding mechanism includes a mixing drum 201 disposed above the support frame 100. A main shaft 202 is rotatably mounted on the upper end of the mixing drum 201. A rotary motor 203 is mounted on the rotating end of the main shaft 202. The output end of the rotary motor 203 is fixed to the rotating end of the main shaft 202 via a coupling. A main mixing and grinding disc 210 is fixed to the lower end of the main shaft 202. The lower end of the main mixing and grinding disc 210 is conical. A spiral turning roller 211 is provided above the main mixing and grinding disc 210. 211 is fixedly connected to the main shaft 202. The spiral turning roller 211 is a cone with the small end facing upward, and the pitch gradually increases from bottom to top. Multiple kneading blocks 214 are installed around the bottom of the main mixing disc 210. The multiple kneading blocks 214 are spirally distributed along the axis of the main mixing disc 210. The side wall of the mixing drum 201 is provided with a feeding groove 215, and the lower end is provided with a solenoid valve 216. A mixing structure for crushing and then mixing materials is provided between the main shaft 202 and the inner wall of the mixing drum 201.

[0027] The mixing structure includes multiple secondary shafts 208 disposed between the main shaft 202 and the inner wall of the mixing drum 201. The multiple secondary shafts 208 are distributed around the axis of the main shaft 202. A secondary mixing disc 209 is fixed to the bottom of the secondary shaft 208. The bottom of the secondary mixing disc 209 is arc-shaped. The inner wall of the mixing drum 201 near the secondary mixing disc 209 is arc-shaped. A rotating frame 212 is provided above the secondary mixing disc 209. Multiple conical plates 213 are fixed on the side wall of the rotating frame 212. The rotating frame 212 is fixedly connected to the secondary shafts 208. Both the secondary mixing disc 209 and the main mixing disc 210 are made of rubber. The spiral turning roller 211 is made of silicone. A drive structure for driving the multiple secondary shafts 208 to rotate is provided between the main shaft 202 and the secondary shafts 208.

[0028] The drive structure includes a fixed sleeve 204 mounted on the upper end of the main shaft 202, which is rotatably connected to the main shaft 202 and fixedly connected to the mixing drum 201. A large gear 206 is fixed at the bottom of the fixed sleeve 204, and a rotating plate 205 is located below the large gear 206. The rotating plate 205 is fixedly connected to the main shaft 202, and a secondary shaft 208 is rotatably connected to the rotating plate 205. A small gear 207 is fixed at the top of the secondary shaft 208, and the small gear 207 meshes with the large gear 206. Through the cooperation of the mixing structure and the mixing mechanism, multiple effects such as crushing, circumferential shearing, and radial kneading are achieved on the material, increasing the mixing area of ​​the material and increasing the crushing and kneading force between the materials, making the mixing of multiple materials more uniform, thereby reducing the mixing time and improving the quality and efficiency of the material mixing.

[0029] Working principle: First, the material is poured into the mixing drum 201. Then, the rotary motor 203 is started to drive the main shaft 202 to rotate, which in turn drives the main mixing disc 210 to rotate. At the same time, the rotating plate 205 rotates, which drives multiple secondary shafts 208 to revolve. The small gear 207 meshes with the large gear 206, which drives the multiple small gears 207 to rotate the secondary shafts 208. This, in turn, drives the multiple secondary mixing discs 209 to rotate while revolving around the main shaft. The secondary mixing discs 209 and the inner wall of the mixing drum 201 squeeze and knead each other. The material is then crushed over a large area by the mutual squeezing and kneading between the main mixing disc 210 and the multiple secondary mixing discs 209, making the material more evenly mixed.

[0030] When the secondary shaft 208 rotates, it drives multiple cone plates 213 on the rotating frame 212 to rotate. When the cone plates 213 rotate, they generate circumferential shear force with the material, which can uniformly crush large pieces of material. When the main shaft 202 rotates, it drives the spiral turning roller 211 to rotate. The spiral turning roller 211 turns the material upward, so that the material forms a path of flowing from bottom to top, which can achieve the effect of mixing the material from top to bottom. This increases the mixing area of ​​the material between the upper and lower areas, thereby increasing the crushing and kneading force between the materials, making the mixing of multiple materials more uniform, thus reducing the mixing time and improving the quality and efficiency of material mixing.

[0031] When discharging the material after mixing and grinding, the rotation of the main mixing and grinding disc 210 drives the multiple kneading blocks 214 at the bottom to rotate. Utilizing the spiral distribution of the multiple kneading blocks 214, the material moves downward more accurately and quickly, speeding up the material discharge time and making it more convenient to use.

[0032] 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 claimed utility model.

Claims

1. A mixing and grinding mill for processing magnesia-carbon bricks, comprising a support frame (100), characterized in that: It also includes a mixing and grinding mechanism for mixing and grinding materials, the mixing and grinding mechanism being located above the support frame (100); The mixing and grinding mechanism includes a mixing drum (201) disposed above the support frame (100). A main shaft (202) is rotatably mounted on the upper end of the mixing drum (201). A rotary motor (203) is mounted on the rotating end of the main shaft (202). The output end of the rotary motor (203) is fixed to the rotating end of the main shaft (202) through a coupling. A main mixing disc (210) is fixed on the lower end of the main shaft (202). The lower end of the main mixing disc (210) is conical. A feed chute (215) is provided on the side wall of the mixing drum (201), and a solenoid valve (216) is provided at the lower end. A mixing structure for crushing and then mixing materials is provided between the main shaft (202) and the inner wall of the mixing drum (201).

2. The mixing and grinding mill for processing magnesia-carbon bricks according to claim 1, characterized in that: The mixing structure includes a plurality of secondary shafts (208) disposed between the main shaft (202) and the inner wall of the mixing drum (201). The plurality of secondary shafts (208) are distributed around the axis of the main shaft (202). A secondary mixing disc (209) is fixed at the bottom end of the secondary shaft (208). The bottom end of the secondary mixing disc (209) is arc-shaped. The inner wall of the mixing drum (201) near the secondary mixing disc (209) is arc-shaped. A drive structure for driving the plurality of secondary shafts (208) to rotate is provided between the main shaft (202) and the secondary shafts (208).

3. The mixing and grinding mill for processing magnesia-carbon bricks according to claim 2, characterized in that: The drive structure includes a fixed sleeve (204) disposed on the upper end of the main shaft (202), the fixed sleeve (204) being rotatably connected to the main shaft (202) and the fixed sleeve (204) being fixedly connected to the mixing drum (201), a large gear (206) being fixed at the bottom end of the fixed sleeve (204), a rotating plate (205) being disposed below the large gear (206), the rotating plate (205) being fixedly connected to the main shaft (202), a secondary shaft (208) being rotatably connected to the rotating plate (205), a small gear (207) being fixed at the top end of the secondary shaft (208), and the small gear (207) meshing with the large gear (206).

4. A mixing and grinding mill for processing magnesia-carbon bricks according to claim 3, characterized in that: A spiral turning roller (211) is provided above the main mixing and grinding disc (210). The spiral turning roller (211) is fixedly connected to the main shaft (202). The spiral turning roller (211) is a cone with the small end facing upward, and the pitch gradually increases from bottom to top.

5. A mixing and grinding mill for processing magnesia-carbon bricks according to claim 4, characterized in that: Multiple kneading blocks (214) are mounted around the bottom of the main mixing mill (210), and the multiple kneading blocks (214) are spirally distributed along the axis of the main mixing mill (210).

6. A mixing and grinding mill for processing magnesia-carbon bricks according to claim 5, characterized in that: A rotating frame (212) is provided above the secondary mixing mill (209), and multiple cone plates (213) are fixed on the side wall of the rotating frame (212). The rotating frame (212) is fixedly connected to the secondary shaft (208).

7. A mixing and grinding mill for processing magnesia-carbon bricks according to claim 6, characterized in that: Both the secondary mixing mill (209) and the main mixing mill (210) are made of rubber, and the spiral turning roller (211) is made of silicone.

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