Ingredient mixing device and processing method of low-carbon cementing material with high early strength
Through the servo motor-driven batching mixing device, the combined movement of rotation and transmission mechanism is used to solve the problem of uneven stirring of clay in low-carbon gelling materials, and the processing of low-carbon gelling materials with high strength in the early stage is achieved.
Patent Information
- Application Number
- CN202510240892.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-04-11
AI Technical Summary
Because of its high viscosity during the mixing of low-carbon gelling materials, clay is unevenly stirred, clumped and hardened, which affects the processing and preparation of materials.
The servo motor-driven batching mixing device is adopted to form strong shear force and fluid power through the combined movement of the rotating mechanism, transmission mechanism and mixing mechanism, so as to achieve uniform stirring and mixing of materials.
It improves mixing uniformity, reduces mixing time, improves overall working efficiency, and ensures high early strength of low-carbon gelling materials.
Smart Images
Figure CN119795366A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of high-viscosity material processing, in particular to a batching and mixing device and a processing method for a low-carbon gelling material with high early strength. Background Art
[0002] Cement is the most widely used cementitious material. In 2021, my country's cement production reached 2.363 billion tons, ranking first in the world. However, cement is also a highly polluting, energy-intensive, and high-emission industry. Its preparation process of "two grindings and one burning" not only consumes a large amount of mineral resources such as calcium, silicon, aluminum, and iron, but also consumes a lot of energy and emits a large amount of carbon dioxide gas and other waste gases and wastewater. According to statistics, the production of one ton of cement clinker consumes 1.6-1.7 tons of raw materials, 105-115kg of standard coal, and emits about 1 ton of CO. 2 Greenhouse gases, while producing a large amount of nitrogen oxides, sulfur dioxide and dust. In view of the above problems, it is urgent to produce low-carbon cementitious materials with no clinker or less clinker that can replace cement.
[0003] Iron tailings are waste products after mineral processing and are the main component of industrial solid waste. According to incomplete statistics, more than 10 billion tons of tailings and waste rock are discharged worldwide each year. my country currently has more than 8,000 state-owned mines and more than 110,000 collective mines in towns and villages, with nearly 5 billion tons of stockpiled tailings and an annual discharge of more than 500 million tons of tailings, of which ferrous metallurgical mines discharge 150 million tons of tailings annually. In the production of low-carbon cementitious materials, iron tailings can be fully utilized for compounding in a certain proportion, which not only improves the utilization rate of solid waste, but also reduces environmental pollution to a certain extent. Therefore, the use of iron tailings to make low-carbon cementitious materials can be widely used in engineering.
[0004] At present, low-carbon cementitious materials are mostly made of iron tailings, limestone, clay and sandstone in proportion. The mixed raw materials are calcined with abrasives and then added with appropriate amounts of other raw materials, followed by grinding to obtain cementitious materials. In the traditional process of preparing cementitious materials, clay is prone to uneven stirring, agglomeration, and low strength after hardening due to its high viscosity, which will affect the processing and preparation of low-carbon cementitious materials. Therefore, how to make the raw materials stir evenly to prepare cementitious materials with excellent performance is a key research issue at present. Summary of the invention
[0005] The main purpose of the present invention is to provide a batching and mixing device and a processing method for a low-carbon cementitious material with high early strength, aiming to solve the problem that clay has high viscosity during batching and mixing, resulting in uneven stirring, agglomeration, low strength after hardening, etc., which in turn affects the processing and preparation of low-carbon cementitious materials.
[0006] To achieve the above object, the present invention provides a batching and mixing device, comprising: servo motor; and, The mixing part includes a working box, a rotating mechanism, a transmission mechanism and a mixing mechanism. The upper end of the working box is open. The rotating mechanism is installed at the output end of the servo motor. The other end of the rotating mechanism is installed with a transmission mechanism. The other end of the transmission mechanism is installed with a mixing mechanism. The mixing mechanism is located in the working box.
[0007] Preferably, the rotating mechanism comprises: A rotating shaft, one end of which is fixedly connected to an output end of the servo motor; A first bevel gear, wherein the first bevel gear is fixedly connected to the other end of the rotating shaft; a second bevel gear, the second bevel gear being disposed below the first bevel gear and meshingly connected with the first bevel gear; and, A connecting shaft, the upper surface of which is fixedly connected to the second bevel gear.
[0008] Preferably, the transmission mechanism comprises: A support ring, the upper surface of which is rotatably connected to the lower surface of the second bevel gear; A limiting ring, wherein the inner side wall of the limiting ring is provided with a plurality of groups of tooth blocks; Brackets, there are two of the brackets, the two brackets are respectively arranged at the two ends below the support ring, the upper ends of the two brackets are fixedly connected to the lower surface of the support ring, and the lower ends of the two brackets are fixedly connected to the upper surface of the limiting ring; A limiting gear, which is arranged inside the limiting ring and meshes with the gear block on the inner side wall of the limiting ring; a transmission shaft, the transmission shaft being fixedly connected to the bottom end of the limiting gear; and A connecting block, one end of which is fixedly connected to the connecting shaft, and the other end of which is sleeved with the transmission shaft.
[0009] Preferably, the batching and mixing device further comprises a supporting portion, and the supporting portion comprises: A horizontal plate, the horizontal plate is arranged below the working box; Vertical plates, there are two of them, and the lower ends of the two vertical plates are respectively fixedly connected to the two ends of the horizontal plate; Connecting plates, there are two connecting plates, the connecting plates are fixedly connected to the top of the vertical plate, and the front lower surfaces of the two connecting plates are respectively fixedly connected to the left rear side and the right rear side of the upper surface of the limiting ring; A V-shaped plate, the two ends of which are fixedly connected to the middle parts of the two vertical plates respectively; A smooth round ball, which is rotatably arranged in the middle of the V-shaped plate, and the lower end of the transmission shaft passes through the smooth round ball and extends into the working box; A fixing frame, wherein there are two fixing frames, the upper ends of the two fixing frames are fixedly connected to the lower surface of the servo motor, and the lower ends of the two fixing frames are fixedly connected to the outer surface of the working box; Support legs, the number of the support legs being four, the four support legs being arranged at four corners of the lower surface of the working box, the bottom ends of the four support legs being fixedly connected to a base, the lower surface of the base being fixedly connected to an anti-slip rubber pad; and, A fixed block, wherein four fixed blocks are provided corresponding to the supporting legs, one end of each fixed block is fixedly connected to the outer surface of the material transfer box, and the other end of each fixed block is fixedly connected to the supporting leg.
[0010] Preferably, the mixing mechanism comprises four groups of bending stirring rods, one ends of the four groups of bending stirring rods are fixedly connected to the lower end of the transmission shaft, and the other ends of the four groups of bending stirring rods are connected to each other.
[0011] Preferably, the batching and mixing device further comprises a material transfer section, and the material transfer section comprises: The material transfer box is a cavity structure. an output pipe, the upper end of which is connected to the working box, the lower end of which is connected to the material transfer box, and an output valve is provided on the output pipe; and, An output frame, the output frame is arranged on the lower surface of the material transfer box and is communicated with the material transfer box; A first pulley, the first pulley is fixedly disposed on the outer surface of the rotating shaft; The main shaft is provided in two groups, and the two groups of the main shafts are arranged side by side relative to the material transfer box, and each group of the main shafts is rotatably connected to the left and right ends of the material transfer box, and the right end of each group of the main shafts extends into the interior of the material transfer box and is fixedly connected with a shaftless auger conveying blade; A second pulley, wherein two second pulleys are provided corresponding to the main shaft, and each second pulley is fixedly connected to the other end of the main shaft; and A transmission belt is drivingly connected between the first pulley and two groups of the second pulleys.
[0012] Preferably, the material transfer unit further comprises: Ball bearings, the ball bearings are in two groups, and each group of the ball bearings is fixed on the outer surface of the main shaft; A bending plate is fixedly connected to the left side surface of the material transfer box, and two groups of ball bearings are respectively arranged at the front end and the rear end of the bending plate.
[0013] Preferably, an observation port is provided on the upper surface of the material transfer box, an observation plate is provided at the observation port, and the observation plate is configured as a transparent plate.
[0014] The present invention also provides a method for processing a low-carbon cementitious material with high early strength. The low-carbon cementitious material with high early strength comprises a component A and a component B. The component A is stirred and mixed using the batching and mixing device as described above and then mixed with the component B to obtain the low-carbon cementitious material with high early strength.
[0015] Preferably, the A component includes 41.99%-65.16% iron tailings, 16.35%-29.01% limestone, 5.35%-15.01% clay and 6.28%-18.25% sandstone, the B component includes 13%-18.23% gypsum, 11.5%-20.25% shale, 15.06%-25.63% slag and 35.96%-50.66% fly ash, and the ratio of the A component to the B component is set to 2:1; the processing method comprises the following steps: S1. According to the raw material composition required for preparing the low-carbon cementitious material with high early strength, weigh each component for use; S2, adding iron tailings, limestone, clay and sandstone into the batching and mixing device and stirring until the texture is uniform to obtain a mixture; S3, finely grinding the mixture; S4, calcining the finely ground mixture in an aerobic atmosphere to obtain a calcined product; S5, cooling the calcined product; S6, mixing the cooled calcined product with gypsum, shale, slag and fly ash again, and drying and grinding the mixture to obtain a low-carbon cementitious material with high early strength; The temperature of the aerobic calcination is 1200-1500° C., and the time is 6-12 hours.
[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention adopts a servo motor to provide power, drives the rotating mechanism to rotate, and transmits it to the transmission mechanism, thereby realizing the combined motion of self-rotation and rotation of the mixing mechanism. Strong shear force and fluid power are formed through rotation and self-rotation, which help the material to quickly reach a uniform state. This combined motion can more effectively stir and mix different materials and improve the mixing uniformity. The mixing mechanism rotates in multiple directions in the working box, which increases the contact area and mixing speed of the mixing, greatly reduces the mixing time, and improves the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram of an embodiment of a batching and mixing device of the present invention; Figure 2 for Figure 1 The structural diagram of the middle mixing section; Figure 3 for Figure 2 A partial enlarged view of the middle A; Figure 4 for Figure 1 Schematic diagram of the structure of the intermediate material transfer unit.
[0019] Description of the accompanying drawings of the embodiments provided by the present invention: Label name Label name 1000 Ingredient mixing device 302 Vertical Board 1 Servo Motor 303 Connecting plate 2 Mixing Department 304 V-type plate 21 Work Box 305 Smooth round beads 22 Rotating mechanism 306 Fixed bracket 221 Rotation axis 307 Support leg 222 First bevel gear 3071 Base 223 Second bevel gear 308 Fixed block 224 Connecting shaft 4 Material transfer department 23 Transmission mechanism 401 Feed box 231 Support ring 4011 Observation Board 232 Limiting ring 402 Output pipe 2321 Gear Block 403 Output Box 233 Bracket 404 First pulley 234 Limit gear 405 Spindle 235 transmission shaft 4051 Shaftless auger conveyor blades 236 Connection Block 406 Second pulley 24 Mixing mechanism 407 Drive belt 241 Stirring bending rod 408 Ball bearings 3 Support 409 Bending Plate 301 Horizontal board The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0023] In view of the fact that clay has a high viscosity and there is a problem of uneven stirring when mixing ingredients, the present invention proposes a mixing device for ingredients, referring to Figures 1 to 4 , Figure 1 It is a structural schematic diagram of an embodiment of a batching and mixing device of the present invention; Figure 2 for Figure 1 The structural diagram of the middle mixing section; Figure 3 for Figure 2 A partial enlarged view of the middle A; Figure 4 for Figure 1 The following is a detailed description of the batching and mixing device in conjunction with the accompanying drawings. The directional indications of up, down, left, right, front, and back in the following embodiments are only used to explain a specific posture (as shown in the accompanying drawings) and do not impose any limitation on the present invention.
[0024] In the embodiment of the present invention, please refer to Figure 1 Figure 2 The batching and mixing device 1000 includes a servo motor 1 and a mixing part 2, wherein the mixing part 2 includes a working box 21, a rotating mechanism 22, a transmission mechanism 23 and a mixing mechanism 24, wherein the upper end of the working box 21 is open, the rotating mechanism 22 is installed at the output end of the servo motor 1, the other end of the rotating mechanism 22 is installed with a transmission mechanism 23, the other end of the transmission mechanism 23 is installed with a mixing mechanism 24, and the mixing mechanism 24 is located in the working box 21.
[0025] The present invention adopts a servo motor 1 to provide power, drives the rotating mechanism 22 to rotate, and transmits it to the transmission mechanism 23, so as to realize the combined motion of self-rotation and rotation of the mixing mechanism 24. Strong shear force and fluid power are formed by rotation and self-rotation, which helps the material to quickly reach a uniform state. This combined motion can more effectively stir and mix different materials and improve the mixing uniformity. The mixing mechanism 24 rotates in multiple directions in the working box 21, which increases the contact area and mixing speed of the mixing, greatly reduces the mixing time, and improves the overall work efficiency.
[0026] For further information, please refer to Figure 1 The rotating mechanism 22 includes a rotating shaft 221, a first bevel gear 222, a second bevel gear 223 and a connecting shaft 224, one end of the rotating shaft 221 is fixedly connected to the output end of the servo motor 1; the first bevel gear 222 is fixedly connected to the other end of the rotating shaft 221; the second bevel gear 223 is arranged below the first bevel gear 222 and is meshed and connected with the first bevel gear 222. Through the tight meshing between the first bevel gear 222 and the second bevel gear 223, the rotation of the rotating shaft 221 around the horizontal direction is converted into rotation in the vertical direction, ensuring the stability and efficiency of power transmission; the upper surface of the connecting shaft 224 is fixedly connected to the second bevel gear 223, and the rotating shaft 221 can be rotated under the drive of the servo motor 1, so that the first bevel gear 222 drives the second bevel gear 223 to rotate.
[0027] Preferably, please refer to Figure 1 Figure 3The transmission mechanism 23 includes a support ring 231, a limiting ring 232, a bracket 233, a limiting gear 234, a transmission shaft 235 and a connecting block 236. The upper surface of the support ring 231 is rotatably connected to the lower surface of the second bevel gear 223; the inner side wall of the limiting ring 232 is provided with a plurality of groups of tooth blocks 2321; there are two brackets 233, and the two brackets 233 are respectively arranged at the left and right ends below the support ring 231, and the upper ends of the two brackets 233 are connected to the The lower surface of the support ring 231 is fixedly connected, and the lower ends of the two brackets 233 are fixedly connected to the upper surface of the limiting ring 232. The two relatively arranged brackets 233 provide a stable support for the support ring 231, so that the second bevel gear 223 can rotate and transmit stably; the limiting gear 234 is arranged inside the limiting ring 232 and meshes with the tooth block 2321 on the inner side wall of the limiting ring 232. The limiting gear 234 and the tooth block 2321 have a certain inclination angle, and the limiting The gear 234 can rotate inside the limiting ring 232; the transmission shaft 235 is fixedly connected to the bottom end of the limiting gear 234; one end of the connecting block 236 is fixedly connected to the connecting shaft 224, and the other end of the connecting block 236 is sleeved with the transmission shaft 235. When the second bevel gear 223 rotates, the bracket 233 and the supporting ring 231 cooperate to assist the second bevel gear 223 to rotate, so that the second bevel gear 223 can stably drive the connecting shaft 224 to rotate, so that the connecting block 236 fixedly connected to the connecting shaft 224 drives the transmission shaft 235 to rotate to a certain extent, the connecting block 236 is rotatably connected to the transmission shaft 235, and the limiting gear 234 is meshed and connected with multiple groups of tooth blocks 2321, so that the limiting gear 234 drives the transmission shaft 235 to rotate, so that the transmission shaft 235 rotates while rotating, so that the mixing mechanism 24 can fully mix the materials inside the working box 21, make the raw material texture uniform, and improve product quality.
[0028] In one embodiment of the present invention, please refer to Figure 1The batching and mixing device 1000 also includes a support portion 3, which includes a horizontal plate 301, a vertical plate 302, a connecting plate 303, a V-shaped plate, a smooth round ball 305, a fixing frame 306, a supporting leg 307 and a fixing block 308. The horizontal plate 301 is arranged below the working box 21; there are two vertical plates 302, and the lower ends of the two vertical plates 302 are respectively fixedly connected to the two ends of the horizontal plate 301. The connection between the horizontal plate 301 and the two vertical plates 302 forms a solid supporting frame, which effectively disperses and carries the load from the working box 21, the rotating mechanism 22, The gravity of the transmission mechanism 23 and the mixing mechanism 24 can improve the stability of the entire device; there are two connecting plates 303, and the connecting plates 303 are fixedly connected to the top of the vertical plate 302. The front lower surfaces of the two connecting plates 303 are respectively fixedly connected to the left rear side and the right rear side of the upper surface of the limiting ring 232; the two ends of the V-shaped plate are respectively fixedly connected to the middle of the two vertical plates 302; the smooth ball 305 is rotatably set in the middle part of the V-shaped plate, and the lower end of the transmission shaft 235 passes through the smooth ball 305 and extends into the working box 21, the smooth ball 305 can rotate in the middle of the V-shaped plate, which can assist the transmission shaft 235 to rotate and rotate. The smooth ball 305 is set in the middle of the V-shaped plate, which can reduce friction and make the lower end of the transmission shaft 235 rotate and rotate more smoothly; there are two fixing frames 306, and the upper ends of the two fixing frames 306 are fixedly connected to the lower surface of the servo motor 1. The fixing frames 306 can fix the servo motor 1 so that the servo motor 1 can work stably. The lower ends of the two fixing frames 306 are fixed to the outer surface of the working box 21 Connection; there are four supporting legs 307, and the four supporting legs 307 are respectively arranged at the four corners of the lower surface of the working box 21 to support the working box 21. The bottom ends of the four supporting legs 307 are fixedly connected with a base 3071, and the lower surface of the base 3071 is fixedly connected with a non-slip rubber pad to enhance the ground adhesion; the four fixing blocks 308 are corresponding to the supporting legs 307, and one end of each of the fixing blocks 308 is fixedly connected to the outer surface of the material transfer box 401, and the other end of each of the fixing blocks 308 is fixedly connected to the supporting leg 307.
[0029] Please refer to Figure 2 Furthermore, the mixing mechanism 24 includes four groups of bending stirring rods 241, one end of each of the four groups of bending stirring rods 241 is fixedly connected to the lower end of the transmission shaft 235, and the four groups of bending stirring rods 241 are driven to rotate together under the rotation of the rotating shaft 221 to improve the stirring and mixing effect. The other ends of the four groups of bending stirring rods 241 are connected to each other. Preferably, the same angle is formed between every two groups of bending stirring rods 241, so that the connection between them is more firm and the stirring effect is better.
[0030] In order to facilitate the conveying of mixed and stirred materials, please refer to Figure 1 Figure 4 The batching and mixing device 1000 also includes a material transfer unit 4, which includes a material transfer box 401, an output pipe 402, an output frame 403, a first pulley 404, a main shaft 405, a shaftless auger conveying blade 4051, a second pulley 406 and a transmission belt 407. The material transfer box 401 is a cavity structure, and the interior can be penetrated; the upper end of the output pipe 402 is connected to the working box 21, and the lower end of the output pipe 402 is connected to the material transfer box 401. An output valve is provided on the output pipe 402. The setting of the output pipe 402 and the matching output valve can effectively control the outflow speed and quantity of the material, ensuring that the management of the material during the processing is more accurate; the output frame 403 is arranged on the lower surface of the material transfer box 401 and is connected to the material transfer box 401; the first pulley 404 is fixedly arranged on the outer surface of one end of the rotating shaft 221; the main shaft 405 is Two groups, the two groups of main shafts 405 are arranged side by side relative to the material transfer box 401, and each group of main shafts 405 are rotatably connected to the left and right ends of the material transfer box 401, and the right end of each group of main shafts 405 extends into the interior of the material transfer box 401 and is fixedly connected with a shaftless auger conveying blade 4051. By connecting the shaftless auger conveying blade 4051 at one end of the main shaft 405, a continuous and uniform pushing force can be provided to ensure smooth movement of the material; two second pulleys 406 are corresponding to the main shaft 405, and each second pulley 406 is fixedly connected to the other end of the main shaft 405; the transmission belt 407 is transmission-connected between the first pulley 404 and the two groups of the second pulleys 406. This design forms an effective power transmission system, which can effectively transfer power from one pulley to another through the transmission belt 407, thereby realizing seamless power support. In practical application, this design can perform certain conveying processing on the mixed and stirred materials, which not only facilitates the next process, but also improves the material transfer efficiency. The mixed materials are discharged from the output pipe 402, and the first pulley 404 rotates under the action of the rotating shaft 221. Through the action of the transmission belt 407, the two sets of second pulleys 406 can be rotated, and then the two sets of main shafts 405 drive the two sets of shaftless auger conveying blades 4051 to rotate at the same time, so as to convey the materials delivered to the inside of the material transfer box 401 and transfer the materials out of the output frame 403.
[0031] Please refer to Figure 1 Figure 4Furthermore, the material transfer part 4 further includes a ball bearing 408 and a curved plate 409. The ball bearing 408 is in two groups, and each group of the ball bearing 408 is fixedly arranged on the outer surface of the main shaft 405. The curved plate 409 is fixedly connected to the left side of the material transfer box 401, and the two groups of the ball bearing 408 are respectively arranged at the front end and the rear end of the curved plate 409. The cooperation of the ball bearing 408 and the curved plate 409 can make the main shaft 405 work more stably and extend the service life of the device.
[0032] Preferably, please refer to Figure 1 An observation port is provided on the upper surface of the material transfer box 401, and an observation plate 4011 is provided at the observation port. The observation plate 4011 is configured as a transparent plate. The transparent observation plate 4011 can make it more convenient for the staff to view the transfer progress inside the material transfer box 401, thereby improving practicality.
[0033] The present invention also provides a method for processing a low-carbon cementitious material with high early strength, wherein the low-carbon cementitious material with high early strength comprises a component A and a component B, wherein the component A is stirred and mixed by a batching and mixing device 1000 and then mixed with the component B to obtain the low-carbon cementitious material with high early strength. The specific structure of the batching and mixing device 1000 refers to the above embodiment, and since the method for processing a low-carbon cementitious material with high early strength adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.
[0034] The component A comprises 41.99%-65.16% of iron tailings, 16.35%-29.01% of limestone, 5.35%-15.01% of clay and 6.28%-18.25% of sandstone; the component B comprises 13%-18.23% of gypsum, 11.5%-20.25% of shale, 15.06%-25.63% of slag and 35.96%-50.66% of fly ash; the ratio of the component A to the component B is set to 2:1; the processing method comprises the following steps: S1. According to the raw material composition required for preparing the low-carbon cementitious material with high early strength, weigh each component for use; S2, adding iron tailings, limestone, clay and sandstone into the batching and mixing device 1000 and stirring until the texture is uniform to obtain a mixture; S3, finely grinding the mixture; S4, calcining the finely ground mixture in an aerobic atmosphere to obtain a calcined product; S5, cooling the calcined product; S6, mixing the cooled calcined product with gypsum, shale, slag and fly ash again, and drying and grinding the mixture to obtain a low-carbon cementitious material with high early strength; The temperature of the aerobic calcination is 1200-1500°C and the time is 6-12 hours to ensure that the material reaches a molten state and forms the required clinker mineral. Proper ventilation must be maintained during the calcination process to exhaust the generated gas and impurities. The obtained calcined material is cooled to prevent it from continuing to react or deteriorate. The cooled calcined material is mixed again with gypsum, shale, slag, and fly ash, and dried and ground to obtain a low-carbon cementitious material with high early strength.
[0035] In this embodiment, clay can react chemically with calcium hydroxide in cement clinker to generate more cementitious substances, thereby improving the strength and durability of concrete. Gypsum can be used to adjust the setting time and hardening strength of cement. The addition of gypsum can significantly increase the hydration rate of cementitious materials in the early stage of hydration. This is mainly because the presence of gypsum effectively increases the calcium ion content in the slurry in the early stage of hydration, thereby accelerating the formation of CSH gel phase. The dissolution and reaction process of gypsum is also prolonged, which helps to further improve the performance of cementitious materials. The carbonate in limestone can react with the active aluminum phase in the active aluminum siliceous mineral to generate cementitious components, thereby obtaining materials with higher mechanical properties and durability.
[0036] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A batching and mixing device, characterized in that: include: a servo motor (1); and A mixing section (2), the mixing section (2) comprising a working box (21), a rotating mechanism (22), a transmission mechanism (23) and a mixing mechanism (24), the upper end of the working box (21) is open, the rotating mechanism (22) is mounted on the output end of the servo motor (1), the other end of the rotating mechanism (22) is mounted with the transmission mechanism (23), the other end of the transmission mechanism (23) is mounted with the mixing mechanism (24), and the mixing mechanism (24) is located in the working box (21).
2. The batching and mixing device according to claim 1, characterized in that: The rotating mechanism (22) comprises: A rotating shaft (221), one end of the rotating shaft (221) being fixedly connected to an output end of the servo motor (1); A first bevel gear (222), the first bevel gear (222) being fixedly connected to the other end of the rotating shaft (221); a second bevel gear (223), the second bevel gear (223) being disposed below the first bevel gear (222) and meshingly connected with the first bevel gear (222); and, A connecting shaft (224), wherein the upper surface of the connecting shaft (224) is fixedly connected to the second bevel gear (223).
3. The batching and mixing device according to claim 2, characterized in that: The transmission mechanism (23) comprises: A support ring (231), wherein the upper surface of the support ring (231) is rotatably connected to the lower surface of the second bevel gear (223); A limiting circular ring (232), wherein the inner side wall of the limiting circular ring (232) is provided with a plurality of groups of tooth blocks (2321); A bracket (233), wherein there are two brackets (233), and the two brackets (233) are respectively arranged at the two ends below the support ring (231), the upper ends of the two brackets (233) are fixedly connected to the lower surface of the support ring (231), and the lower ends of the two brackets (233) are fixedly connected to the upper surface of the limiting ring (232); A limiting gear (234), the limiting gear (234) is arranged inside the limiting ring (232) and is meshedly connected with a tooth block (2321) on the inner side wall of the limiting ring (232); a transmission shaft (235), wherein the transmission shaft (235) is fixedly connected to the bottom end of the limiting gear (234); and A connecting block (236), one end of the connecting block (236) is fixedly connected to the connecting shaft (224), and the other end of the connecting block (236) is sleeved with the transmission shaft (235).
4. The batching and mixing device according to claim 3, characterized in that: The batching and mixing device further comprises a support portion (3), wherein the support portion (3) comprises: A transverse plate (301), the transverse plate (301) being arranged below the working box (21); Vertical plates (302), there are two vertical plates (302), and the lower ends of the two vertical plates (302) are respectively fixedly connected to the two ends of the horizontal plate (301); Connecting plates (303), there are two connecting plates (303), the connecting plates (303) are fixedly connected to the top of the vertical plate (302), and the front lower surfaces of the two connecting plates (303) are respectively fixedly connected to the left rear side and the right rear side of the upper surface of the limiting circular ring (232); A V-shaped plate, the two ends of which are fixedly connected to the middle parts of the two vertical plates (302); A smooth round ball (305), the smooth round ball (305) is rotatably arranged in the middle part of the V-shaped plate, and the lower end of the transmission shaft (235) passes through the smooth round ball (305) and extends into the working box (21); A fixing frame (306), wherein there are two fixing frames (306), the upper ends of the two fixing frames (306) are fixedly connected to the lower surface of the servo motor (1), and the lower ends of the two fixing frames (306) are fixedly connected to the outer surface of the working box (21); Support legs (307), there are four support legs (307), the four support legs (307) are respectively arranged at four corners of the lower surface of the working box (21), the bottom ends of the four support legs (307) are fixedly connected to a base (3071), and the lower surface of the base (3071) is fixedly connected to an anti-slip rubber pad; and, A fixed block (308), wherein four fixed blocks (308) are provided corresponding to the supporting legs (307), one end of each fixed block (308) is fixedly connected to the outer surface of the material transfer box (401), and the other end of each fixed block (308) is fixedly connected to the supporting leg (307).
5. The batching and mixing device according to claim 3, characterized in that: The mixing mechanism (24) comprises four groups of bending stirring rods (241), one end of each of the four groups of bending stirring rods (241) is fixedly connected to the lower end of the transmission shaft (235), and the other ends of the four groups of bending stirring rods (241) are connected to each other.
6. The batching and mixing device according to claim 2, characterized in that: The batching and mixing device further comprises a material transfer section (4), wherein the material transfer section (4) comprises: The material transfer box (401) is a cavity structure. an output pipe (402), the upper end of the output pipe (402) being connected to the working box (21), the lower end of the output pipe (402) being connected to the material transfer box (401), and an output valve being provided on the output pipe (402); and, An output frame (403), the output frame (403) is arranged on the lower surface of the material transfer box (401) and is in communication with the material transfer box (401); A first pulley (404), the first pulley (404) being fixedly disposed on the outer surface of the rotating shaft (221); A main shaft (405), wherein the main shaft (405) is provided in two groups, and the two groups of the main shafts (405) are arranged side by side relative to the material transfer box (401), and each group of the main shafts (405) is rotatably connected to the left and right ends of the material transfer box (401), and the right end of each group of the main shafts (405) extends into the interior of the material transfer box (401) and is fixedly connected to a shaftless auger conveying blade (4051); A second pulley (406), wherein two second pulleys (406) are provided corresponding to the main shaft (405), and each second pulley (406) is fixedly connected to the other end of the main shaft (405); and, A transmission belt (407) is connected between the first pulley (404) and two sets of the second pulleys (406).
7. The ingredient mixing device according to claim 6, characterized in that: The material transfer part (4) further comprises: Ball bearings (408), the ball bearings (408) are in two groups, and each group of the ball bearings (408) is fixedly mounted on the outer surface of the main shaft (405); A bending plate (409) is fixedly connected to the left side of the material transfer box (401), and two groups of ball bearings (408) are respectively arranged at the front end and the rear end of the bending plate (409).
8. The batching and mixing device according to claim 6, characterized in that: An observation port is provided on the upper surface of the material transfer box (401), and an observation plate (4011) is provided at the observation port. The observation plate (4011) is configured as a transparent plate.
9. A method for processing a low-carbon cementitious material with high early strength, characterized in that: The low-carbon cementitious material with high early strength comprises component A and component B. Component A is stirred and mixed using the batching and mixing device as described in any one of claims 1 to 8 and then mixed with component B to obtain the low-carbon cementitious material with high early strength.
10. The method for processing a low-carbon cementitious material with high early strength according to claim 9, characterized in that: The A component includes 41.99%-65.16% of iron tailings, 16.35%-29.01% of limestone, 5.35%-15.01% of clay and 6.28%-18.25% of sandstone; the B component includes 13%-18.23% of gypsum, 11.5%-20.25% of shale, 15.06%-25.63% of slag and 35.96%-50.66% of fly ash; the ratio of the A component to the B component is set to 2:1; the processing method includes the following steps: S1. According to the raw material composition required for preparing the low-carbon cementitious material with high early strength, weigh each component for use; S2, adding iron tailings, limestone, clay and sandstone into the batching and mixing device and stirring until the texture is uniform to obtain a mixture; S3, finely grinding the mixture; S4, calcining the finely ground mixture in an aerobic atmosphere to obtain a calcined product; S5, cooling the calcined product; S6, mixing the cooled calcined product with gypsum, shale, slag and fly ash again, and drying and grinding the mixture to obtain a low-carbon cementitious material with high early strength; The temperature of the aerobic calcination is 1200-1500° C., and the time is 6-12 hours.