A research device for preparing ferrum-aluminate modified cement with high red mud ratio

Abstract

This invention discloses a research apparatus for preparing ferroaluminate modified cement with a high proportion of red mud, comprising: a fixed platform, a proportioning device, a ball mill, a rotary kiln, and a cooling and grinding device. The fixed platform supports the entire apparatus. The proportioning device includes an adjustment component and a conveying component, with the conveying component fixed to the fixed platform. The ball mill is located below and to the side of the proportioning device, and a collecting funnel is provided at the inlet of the ball mill, located at the bottom end of the conveying component. The rotary kiln is located at the outlet of the ball mill. The cooling and grinding device is located at the outlet of the rotary kiln, and a cooling chamber and a grinding component are arranged sequentially from top to bottom within the cooling and grinding device. Compared with existing technologies, this invention, by proportioning raw materials on a conveyor belt and adjusting the raw material ratio at any time, allows for timely adjustments for different types of red mud raw materials, maximizing the reuse rate of this solid waste.

Description

Technical Field

[0001] This invention relates to the field of cement manufacturing research technology, and more specifically, to a research apparatus for preparing ferroaluminate modified cement with a high red mud ratio. Background Technology

[0002] Red mud is an industrial waste generated in the aluminum industry, with huge emissions and extremely difficult utilization, achieving a utilization rate of less than 5%. Red mud stockpiling involves significant investment in storage sites, occupying large amounts of land, and also damages the ecosystem and harms human health. To reduce pollution, red mud is often used in cement production. To improve its utilization rate, it is necessary to study the proportions of red mud with other raw materials and determine an effective batching calculation scheme. This scheme can effectively adjust the proportions of each raw material, significantly increasing the reuse rate of this type of solid waste. However, researching the proportions requires multiple adjustments to determine the maximum red mud ratio for optimal cement quality. Therefore, it is necessary to provide a research apparatus for preparing aluminoferrite-modified cement with a high red mud ratio to address the problems mentioned in the background. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: a research apparatus for preparing ferroaluminate modified cement with a high red mud ratio, comprising:

[0004] The fixed platform supports the entire equipment.

[0005] The proportioning device is equipped with an adjustment component and a conveying component, with the conveying component fixed on a fixed platform, for proportioning and conveying raw materials;

[0006] A ball mill is located below the proportioning device, and a collecting funnel is provided at the inlet of the ball mill. The collecting funnel is located at the bottom end of the conveying assembly to collect the proportioned raw materials and uniformly mix and grind them to obtain raw material.

[0007] A rotary kiln is installed at the outlet of the ball mill to calcine the raw materials;

[0008] A cooling and grinding device is installed at the outlet of a rotary kiln. The cooling and grinding device is provided with a cooling chamber and a grinding assembly from top to bottom. After the calcined raw material is cooled, an appropriate amount of expanding agent and accelerator are added to the grinding assembly for grinding to obtain ferroaluminate modified cement clinker.

[0009] Furthermore, preferably, the conveying assembly includes:

[0010] The support frame is fixed on the fixed platform and supports the entire conveying assembly;

[0011] The drive motor is located on one side of the support frame;

[0012] Two conveyor rollers are symmetrically distributed, and the center of one of the conveyor rollers is fixedly connected to the shaft of the drive motor.

[0013] A conveyor belt connects two conveyor rollers;

[0014] An inner support is installed between the conveyor rollers and fits against the inner side of the conveyor belt. The inner support and the conveyor belt are in a horizontal state. Driven by the drive motor, the conveyor rollers rotate, which in turn drives the conveyor belt to rotate on the conveyor rollers. At the same time, the part of the conveyor belt between the conveyor rollers slides on the inner support. With the continuous rotation of the conveyor rollers, the conveyor belt continuously conveys the raw materials.

[0015] Furthermore, preferably, the conveyor belt comprises:

[0016] Multiple conveyor bars are arranged parallel to the conveyor rollers and are fixed sequentially on the conveyor belt.

[0017] Multiple sets of limiting components are installed in relation to the conveyor bar and fixed on the conveyor bar. Under the action of the limiting components, a material trough is formed on the conveyor bar to collect and convey raw materials from the regulating component.

[0018] Furthermore, preferably, each set of limiting members consists of two symmetrically distributed right-angled triangular prisms, and the triangular prisms are fixed at both ends of the conveyor strip. Each set of limiting members and the conveyor strip are combined to form a material trough. Under the drive of the drive motor, the conveyor roller rotates, which in turn drives the conveyor belt to rotate on the conveyor roller. Then, under the drive of the conveyor belt, each set of limiting members and the conveyor strip move to convey the raw materials.

[0019] Furthermore, preferably, the adjustment component includes:

[0020] The fixed housing consists of two opposing concave housings and two planar housings on both sides. The two ends of the planar housings are connected to the two concave housings on both sides, the outer side is fixedly connected to the support frames on both sides, and the bottom inner side is slidably connected to the conveyor belt.

[0021] Multiple limiting components are arranged in a straight line and can be slidably installed inside the fixed housing, dividing the fixed housing into multiple areas for storing different raw materials;

[0022] Multiple sets of telescopic inclined planes are arranged in a straight line between the limiting components. The interval between each set of telescopic inclined planes forms a raw material inlet. Under the joint constraint of the telescopic inclined planes, the fixed shell and the limiting components, a storage bin is formed. Its bottom corresponds to the material trough on the conveyor belt. As the conveyor belt rotates, raw materials are continuously brought out from the storage bin. Under the action of the limiting components and the telescopic inclined planes, the proportion of each raw material is changed.

[0023] Furthermore, preferably, the limiting component includes:

[0024] The sliding housing is slidably connected to the inner walls of the concave housings on both sides, facilitating movement within the fixed housing;

[0025] Two screws are symmetrically distributed, pass through the planar housing, connect to multiple limiting components, and one end of the screw is fixedly connected to the motor;

[0026] The nut is rotatably fixed to the screw.

[0027] The movable roller is rotatably fixed to the nut.

[0028] The conveyor belt is mounted on moving rollers;

[0029] Furthermore, as a preferred embodiment, the conveyor belt is provided with a plurality of conveying blocks arranged in sequence, and the middle of the conveying block is provided with a limiting plane corresponding to the limiting member. When the conveying assembly is driven by the drive motor, the conveyor belt drives the conveying strip and the limiting member to move, thereby driving the limiting plane to move as well. In turn, the conveyor belt is driven to rotate on the moving roller through the conveying block. That is, during the rotation, the limiting plane is always between the limiting members to separate each group of raw materials.

[0030] Furthermore, preferably, the nut and the movable roller are provided with a plurality of polygonal limiting holes arranged in a ring at their adjacent edges, and the opposing limiting holes are connected by a fixing member. When the fixing member fixes the nut and the movable roller together through the limiting holes, and the conveying assembly is in a fixed state, the screw rotates under the drive of the motor, and is thus restricted by the conveying assembly, and the limiting plane is in a fixed state, that is, the movable roller and the nut are in a fixed state. Then the nut drives the limiting assembly as a whole to move on the screw. The nut and the movable roller in each limiting assembly are fixed individually, realizing the movement of each limiting assembly, that is, the movement of the limiting plane, and dividing the material trough on the conveyor strip into areas. When the fixing member is removed, the nut and the movable roller are in a rotatable state, and the drive motor drives the conveying assembly to run, thereby driving the limiting plane to rotate, and then the conveyor belt drives the movable roller to rotate on the nut, thus cooperating with the conveying assembly to complete the conveying of each group of raw materials.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] In this invention, the proportion of raw materials for preparing aluminoferrite modified cement is adjusted by setting the proportioning components. Through multiple adjustment experiments, the highest proportion of red mud is determined under the condition of best cement quality, thereby achieving a significant increase in the reuse rate of red mud, a solid waste.

[0033] In this invention, by adjusting the settings of the components and the conveying components, the raw materials can be dispensed in portions on the conveyor belt without the need for separate proportioning of the raw materials. The proportion of raw materials can be changed at any time, and each portion of raw materials has the same specifications, which facilitates the control of the overall quantity of the experiment. Adjustments can be made in a timely manner for different types of red mud raw materials, resulting in higher experimental efficiency. Attached Figure Description

[0034] Figure 1 A schematic diagram of the overall structure of a research device for preparing ferroaluminate modified cement with a high red mud ratio;

[0035] Figure 2 A side view of a research apparatus for preparing ferroaluminate modified cement with a high red mud ratio;

[0036] Figure 3 A schematic diagram of the proportioning device in a research apparatus for preparing ferroaluminate modified cement with a high proportion of red mud;

[0037] Figure 4 A top view of the proportioning device in a research apparatus for preparing ferroaluminate modified cement with a high proportion of red mud;

[0038] Figure 5 A schematic diagram of the regulating component structure in a research device for preparing ferroaluminate modified cement with a high red mud ratio;

[0039] Figure 6 A schematic diagram of the conveying component structure in a research device for preparing ferroaluminate modified cement with a high red mud ratio;

[0040] Figure 7 A schematic diagram of the limiting component structure in a research device for preparing ferroaluminate modified cement with a high red mud ratio;

[0041] In the diagram: 1. Fixed platform; 2. Proportioning device; 3. Ball mill; 4. Rotary kiln; 5. Cooling and grinding device; 21. Adjustment component; 22. Conveying component; 31. Collection funnel; 51. Cooling chamber; 52. Grinding component; 211. Fixed housing; 212. Limiting component; 213. Telescopic inclined plane; 221. Support frame; 222. Drive motor; 223. Conveying roller; 224. Conveying belt; 225. Inner support; 2121. Sliding housing; 2122. Screw; 2123. Nut; 2124. Moving roller; 2125. Conveying belt body; 2126. Conveying block; 2127. Limiting plane; 2128. Limiting hole; 2129. Fixing component; 2241. Conveying bar; 2242. Limiting component. Detailed Implementation

[0042] Please see Figures 1-7 In this embodiment of the invention, a research apparatus for preparing ferroaluminate modified cement with a high red mud ratio includes:

[0043] Fixed platform 1, supporting the entire equipment;

[0044] The proportioning device 2 is equipped with an adjusting component 21 and a conveying component 22, and the conveying component 22 is fixed on the fixed platform 1 to proportion and convey the raw materials.

[0045] The ball mill 3 is located to the side and below the proportioning device 2, and a collection funnel 31 is provided at the inlet of the ball mill 3. The collection funnel 31 is located at the bottom end of the conveying assembly 22. It collects the proportioned raw materials and mixes and grinds them evenly to obtain raw material.

[0046] Rotary kiln 4 is located at the outlet of ball mill 3 to calcine raw materials;

[0047] The cooling and grinding device 5 is located at the outlet of the rotary kiln 4. The cooling and grinding device 5 is provided with a cooling chamber 51 and a grinding component 52 from top to bottom. After cooling the calcined raw material, an appropriate amount of expanding agent and quick-setting agent are added to the grinding component 52 for grinding to obtain ferroaluminate modified cement clinker.

[0048] In this embodiment, the conveying component 22 includes:

[0049] Support frame 221 is fixed on fixed platform 1 and supports the entire conveying assembly 22;

[0050] The drive motor 222 is located on one side of the support frame 221;

[0051] Two conveying rollers 223 are symmetrically distributed, and the center of one of the conveying rollers 223 is fixedly connected to the shaft of the drive motor 222;

[0052] Conveyor belt 224 connects two conveyor rollers 223;

[0053] An inner support 225 is disposed between the conveying rollers 223 and fits against the inner side of the conveyor belt 224. The inner support 225 and the conveyor belt 224 are in a horizontal state. Driven by the drive motor 222, the conveying rollers 223 rotate, thereby driving the conveyor belt 224 to rotate on the conveying rollers 223. At the same time, the part of the conveyor belt 224 between the conveying rollers 223 slides on the inner support 225. With the continuous rotation of the conveying rollers 223, the conveyor belt 224 continuously conveys the raw materials.

[0054] In this embodiment, the conveyor belt 224 includes:

[0055] Multiple conveyor bars 2241 are arranged parallel to each other with conveyor rollers 223 and are fixed sequentially on conveyor belt 224;

[0056] Multiple sets of limiting members 2242 are provided for the conveyor bar 2241 and fixed on the conveyor bar 2241. Under the action of the limiting members 2242, a material trough is formed on the conveyor bar 2241 to collect and convey the raw materials from the adjusting component 21.

[0057] In this embodiment, each set of limiting members 2242 is composed of two symmetrically distributed right-angled triangular prisms, and the triangular prisms are fixed at both ends of the conveyor strip 2241. Each set of limiting members 2242 and the conveyor strip 2241 are combined to form a material trough. Under the drive of the drive motor 222, the conveyor roller 223 rotates, which in turn drives the conveyor belt 224 to rotate on the conveyor roller 223. Then, under the drive of the conveyor belt 224, each set of limiting members 2242 and the conveyor strip 2241 move to convey the raw materials.

[0058] In this embodiment, the adjustment component 21 includes:

[0059] The fixed housing 211 is composed of two opposite concave housings and two planar housings on both sides. The two ends of the planar housing are connected to the two concave housings on both sides, the outer side is fixedly connected to the support frame 221 on both sides, and the bottom inner side is slidably connected to the conveyor belt 224.

[0060] Multiple limiting components 212 are arranged in a straight line and can be slidably disposed within the fixed housing 211, dividing the fixed housing 211 into multiple areas for storing different raw materials;

[0061] Multiple sets of telescopic inclined planes 213 are arranged in a straight line between the limiting components 212. The intervals between each set of telescopic inclined planes 213 form a raw material inlet. Under the joint constraint of the telescopic inclined planes 213, the fixed housing 211 and the limiting components 212, a storage bin is formed. Its bottom corresponds to the material trough on the conveyor belt 224. While the conveyor belt 224 rotates, the raw materials are continuously brought out from the storage bin. Under the action of the limiting components 212 and the telescopic inclined planes 213, the proportion of each raw material is changed.

[0062] In this embodiment, the limiting component 212 includes:

[0063] The sliding housing 2121 is slidably connected to the inner walls of the concave housings on both sides, which facilitates movement within the fixed housing 211;

[0064] Two screws 2122 are symmetrically distributed, pass through the planar housing, connect to multiple limiting components 212, and one end of the screw 2122 is fixedly connected to the motor;

[0065] Nut 2123 is rotatably fixed to screw 2122;

[0066] The movable roller 2124 is rotatably fixed on the nut 2123;

[0067] The conveyor belt body 2125 is mounted on the moving rollers 2124;

[0068] In this embodiment, the conveyor belt 2125 is provided with a plurality of conveying blocks 2126 arranged in sequence, and the middle part of the conveying block 2126 is provided with a limiting plane 2127 corresponding to the limiting member 2242. When the conveying assembly 22 operates under the drive of the drive motor 222, the conveyor belt 224 drives the conveying strip 2241 and the limiting member 2242 to move, thereby driving the limiting plane 2127 to move accordingly. Then, the conveyor belt 2125 is driven to rotate on the moving roller 2124 through the conveying blocks 2126. That is, during the rotation, the limiting plane 2127 is always between the limiting members 2242 to separate each group of raw materials.

[0069] In this embodiment, the nut 2123 and the movable roller 2124 are provided with a plurality of polygonal limiting holes 2128 arranged in a ring at their adjacent edges, and the opposing limiting holes 2128 are connected by a fixing member 2129. When the fixing member 2129 fixes the nut 2123 and the movable roller 2124 together through the limiting holes 2128, and the conveying assembly 22 is in a fixed state, the screw 2122 rotates under the drive of the motor, and is thus restricted by the conveying assembly 22, and the limiting plane 2127 is in a fixed state, that is, the movable roller 2124 and the nut 2123 are in a fixed state, and then the nut 2123 drives the limiting assembly 212 as a whole. The screw 2122 moves, and the nut 2123 and the moving roller 2124 in each limiting component 212 are individually fixed, so as to realize the movement of each limiting component 212, that is, the movement of the limiting plane 2127, and the material trough on the conveyor bar 2241 is divided into areas. When the fixing part 2129 is removed, the nut 2123 and the moving roller 2124 are in a rotatable state. The drive motor 222 drives the conveying component 22 to run, which in turn drives the limiting plane 2127 to rotate. Then, the conveyor belt 2125 drives the moving roller 2124 to rotate on the nut 2123, and cooperates with the conveying component 22 to complete the conveying of each group of raw materials.

[0070] In practical implementation, the research formulation is first determined. Based on the raw material ratio, the nuts 2123 and moving rollers 2124 in the limiting components 212 are fixed by the fixing component 2129. Then, the motor drives the screw 2122 to rotate, adjusting the distance between the limiting components 212. At the same time, the telescopic inclined plane 213 extends or retracts with the limiting components 212 on both sides, thus forming multiple storage bins. After adjustment, the fixing component 2129 is removed, so that the nuts 2123 and moving rollers 2124 are in a rotatable state. The raw materials are poured into the storage bins. The raw materials enter the material trough on the conveyor belt 224, which is composed of the conveyor strips 2241 and the limiting component 2242. Then, driven by the drive motor 222, the material is transported... The conveyor component 22 operates, which in turn drives the material trough 224 to rotate, conveying the raw materials in the storage bin. Driven by the conveyor component 22, each group of raw materials enters the ball mill 3 through the collection funnel 31. After being uniformly mixed and ground, raw meal is obtained. After being calcined in the rotary kiln 4, it enters the cooling chamber 51 for cooling. An appropriate amount of expanding agent and quick-setting agent are added to the grinding component 52, and grinding is carried out to obtain aluminoferrite modified cement clinker. The raw material ratio is changed by adjusting the limiting component 212 to obtain different aluminoferrite modified cement clinker. Strength test is conducted to determine the highest ratio of red mud while ensuring cement quality. This not only realizes the reuse of solid waste, but also reduces the economic cost of producing aluminoferrite cement.

[0071] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A research apparatus for preparing ferroaluminate modified cement with a high red mud ratio, characterized in that: include: Fixed platform (1), supporting the entire equipment; The proportioning device (2) is equipped with an adjusting component (21) and a conveying component (22), and the conveying component (22) is fixed on the fixed platform (1); A ball mill (3) is located below the side of the proportioning device (2), and a collection funnel (31) is provided at the inlet of the ball mill (3), the collection funnel (31) being located at the bottom end of the conveying assembly (22); A rotary kiln (4) is located at the outlet of the ball mill (3); A cooling grinding device (5) is installed at the outlet of the rotary kiln (4), and the cooling grinding device (5) is provided with a cooling chamber (51) and a grinding assembly (52) from top to bottom. The conveying assembly (22) includes: The support frame (221) is fixed on the fixed platform (1); A drive motor (222) is installed on one side of the support frame (221); Two conveying rollers (223) are symmetrically distributed, and the center of one of the conveying rollers (223) is fixedly connected to the shaft of the drive motor (222); A conveyor belt (224) connects two conveyor rollers (223); An inner support (225) is disposed between the conveyor rollers (223) and fits against the inner side of the conveyor belt (224), and the inner support (225) and the conveyor belt (224) are in a horizontal state; The conveyor belt (224) includes: Multiple conveyor bars (2241) are arranged parallel to each other with the conveyor rollers (223) and are fixed sequentially on the conveyor belt (224); Multiple sets of limiting members (2242) are provided corresponding to the conveyor bar (2241) and fixed on the conveyor bar (2241); Each set of limiting members (2242) consists of two symmetrically distributed right-angled triangular prisms, and the triangular prisms are fixed at both ends of the conveyor strip (2241); The adjustment component (21) includes: The fixed housing (211) is composed of two opposite concave housings and two planar housings on both sides. The two ends of the planar housing are connected to the two concave housings on both sides, the outer side is fixedly connected to the two side support frames (221), and the bottom inner side is slidably connected to the conveyor belt (224). Multiple limiting components (212) are arranged in a straight line and can be slidably disposed within the fixed housing (211); Multiple sets of telescopic inclined surfaces (213) are arranged in a straight line between the limiting components (212), and the interval between each set of telescopic inclined surfaces (213) constitutes a raw material inlet. The limiting component (212) includes: The sliding housing (2121) is slidably connected to the inner walls of the concave housings on both sides; Two screws (2122) are symmetrically distributed, pass through the planar housing, connect to multiple limiting components (212), and one end of the screw (2122) is fixedly connected to the motor; Nut (2123) is rotatably fixed on screw (2122); A movable roller (2124) is rotatably fixed to a nut (2123); The conveyor belt body (2125) is mounted on the moving roller (2124); The conveyor belt body (2125) is provided with a plurality of conveyor blocks (2126) arranged in sequence, and the middle part of the conveyor block (2126) is provided with a limiting plane (2127) corresponding to the limiting member (2242). During the rotation process, the limiting plane (2127) is always between the limiting members (2242) to separate each group of raw materials. The nut (2123) and the movable roller (2124) are provided with a plurality of polygonal limiting holes (2128) arranged in a ring at their adjacent edges, and the opposing limiting holes (2128) are connected by a fastener (2129).

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