Grading and upgrading equipment for preparing active micro powder from fly ash and multiple slags
By designing a grading and upgrading equipment, the problem of uneven mixing of fly ash and slag during grinding was solved, achieving high quality and stability of active micro powder, and improving the mixing effect and grading accuracy of fly ash and slag.
Patent Information
- Application Number
- CN202520360562.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In existing technologies, the mixing of fly ash and slag after grinding is uneven, which affects the consistency and stability of the active micro powder and results in poor performance.
The graded upgrading equipment, including the design of upper and lower grinding discs, combined with guard plates, guide plates and separators, ensures that fly ash and slag are fully mixed and separated through airflow classification and grinding process optimization, avoiding the mixing of coarse and fine particles.
It improves the quality and performance consistency of active micro powder, ensures thorough mixing and grading accuracy of fly ash and slag, and enhances resistance to external erosion.
Smart Images
Figure CN223915513U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fly ash slag activity micro powder preparation technical field especially for fly ash cooperates many slag preparation activity micro powder grading quality improving equipment for fly ash. BACKGROUND
[0002] Fly ash cooperates many slag preparation activity micro powder is an effective method for realizing industrial solid waste resource utilization and improving material performance. The superfine powder obtained by grinding slag and fly ash together can be used as a concrete admixture, a cement substitute and applied in the field of building materials, and can also be used for preparing ceramic, glass, paint and other products. The application of such superfine powder not only improves the added value of slag and fly ash, but also provides high-quality raw materials for related industries.
[0003] In the process of preparing active micro powder from fly ash and slag, the slag has a high Mohs hardness (5.5-6.5) and an irregular polyhedral shape. When the existing device is used for grinding treatment, the fineness of some slag is not uniform, so there are problems such as unreacted impurities and high porosity in the active micro powder, which affects the full mixing of fly ash and slag, making it difficult to accurately control the amount of activator, thereby affecting the consistency and stability of the performance of the active micro powder, and reducing the ability of fly ash and slag to resist external erosion medium. Therefore, fine crushing and grading quality improvement during the pretreatment and optimization grinding stage can improve the quality and performance of the micro powder. SUMMARY
[0004] The utility model discloses a device for preparing active micro powder from fly ash and slag, which can improve the uniformity and stability of the prepared active micro powder.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] The device for preparing active micro powder from fly ash and slag comprises a tank body, a feed hopper connected to the top side wall of the tank body, a slag discharge port and an air inlet connected to the bottom side wall of the tank body, a top cover installed on the top of the tank body through a plurality of bolts, a discharge port formed in the upper end of the top cover, and a separator installed on the inner top of the top cover.
[0007] The tank body is provided with an upper grinding disc and a lower grinding disc for grinding, the bottom of the lower grinding disc is provided with a driving mechanism, the bottom of the driving mechanism is connected with a flow guide plate, a plurality of circulation grooves are formed in the circumferential direction of the flow guide plate, and the flow guide plate is located above the air inlet and is designed in an arc shape.
[0008] As a further preferred of the technical solution, the inner wall of the tank body is fixedly connected with a guard plate, and the guard plate is arranged obliquely.
[0009] The guard plate is arranged at the bottom of the tank body, and the position of the guard plate corresponds to the position of the air inlet.
[0010] As a further preferred of the technical solution, a through groove is arranged at the shaft center of the upper grinding disc, and a plurality of support rods are arranged on the side wall of the upper grinding disc in a circumferential direction, and the ends of the plurality of support rods away from the upper grinding disc are fixedly connected with the inner wall of the tank body.
[0011] The lower surface of the upper grinding disc is designed as an arc shape.
[0012] As a further preferred of the technical solution, the upper surface of the lower grinding disc is designed as an arc surface corresponding to the bottom of the upper grinding disc.
[0013] The diameter of the lower grinding disc is equal to the diameter of the upper grinding disc, and the position of the through groove corresponds to the shaft center of the lower grinding disc.
[0014] The upper surface of the lower grinding disc is arranged with a plurality of protrusions in a circumferential direction, and the plurality of protrusions are designed as hemispheres.
[0015] As a further preferred of the technical solution, the driving mechanism comprises an assembly box, the top of the assembly box is fixedly connected with a connecting plate, and the inside of the driving mechanism is fixedly installed with a motor.
[0016] As a further preferred of the technical solution, the bottom of the assembly box is fixedly connected with the upper surface of the flow guide plate, the top of the connecting plate is rotatably connected with the bottom of the lower grinding disc, and the output shaft of the motor is fixedly connected with the lower surface of the lower grinding disc through a shaft coupling.
[0017] The utility model discloses the following beneficial effects: 1, the utility model discloses a assembly box, connecting plate and motor are set up, and the lower grinding disc is rotated in the process of active micro powder preparation, because the contact surface between the upper grinding disc and the lower grinding disc is obliquely designed, cooperates the plurality of hemispherical protrusions that the lower grinding disc upper end is arranged in a circumferential direction, can quickly grind the fly ash and slag that add, and the active micro powder formed finally falls from the lower grinding disc edge and is guided to the separator at the top under the blowing of air, and the product that meets the particle size range is collected, can ensure that fly ash and slag are fully mixed, and the quality of the prepared active micro powder is improved. 2, the utility model discloses a guard plate and flow guide plate are set up, can guide the airflow at the air inlet, finally along the edge of the tank body upwards, when the lower grinding disc is grinding, the micro powder produced will fall from the edge, and the flowing gas will carry the micro powder and move upwards, and the larger particle size will fall to the tank bottom under the gravity factor, avoid the phenomenon that coarse and fine particles are mixed, and the classification accuracy of active micro powder is improved significantly. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the following description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 The main view structural schematic diagram of the active micro-powder grading and quality improving equipment for preparing active micro-powder from fly ash and multiple slags is provided for the present application.
[0020] Figure 2 The cross-sectional view structural schematic diagram of the active micro-powder grading and quality improving equipment for preparing active micro-powder from fly ash and multiple slags is provided for the present application.
[0021] Figure 3 The internal partial structure schematic diagram of the active micro-powder grading and quality improving equipment for preparing active micro-powder from fly ash and multiple slags is provided for the present application.
[0022] Figure 4 The lower view structural schematic diagram of the guide plate of the active micro-powder grading and quality improving equipment for preparing active micro-powder from fly ash and multiple slags is provided for the present application.
[0023] Figure 5 The upper view structural schematic diagram of the lower grinding disc of the active micro-powder grading and quality improving equipment for preparing active micro-powder from fly ash and multiple slags is provided for the present application.
[0024] In the figure: 1, tank body; 11, feed hopper; 12, slag discharge port; 13, air inlet; 14, guard plate; 2, top cover; 21, discharge port; 3, separator; 4, upper grinding disc; 41, through groove; 42, support rod; 5, lower grinding disc; 51, protrusion; 6, driving mechanism; 61, assembly box; 62, adapter plate; 63, motor; 7, guide plate; 71, circulating groove. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0026] The present application provides a technical solution: as Figure 1As shown, a device for preparing active micro-powder through co-processing of fly ash and slag is included. The device comprises a tank 1, with a feed hopper 11 connected to the top side wall of the tank 1. Fly ash and slag to be ground are added to the tank 1 through the upper end of the feed hopper 11. The other end of the feed hopper 11 extends above the upper grinding disc 4. The added raw materials fall through a channel 41 on the upper grinding disc 4 into the space between the upper grinding disc 4 and the lower grinding disc 5. A slag discharge port 12 and an air inlet 13 are connected to the bottom side wall of the tank 1. The slag discharge port 12 is opened to collect the larger particles from the bottom of the tank 1. A protective plate 14 is fixedly connected to the inner wall of the tank 1, and the protective plate 14 is inclined relative to the horizontal position. The protective plate 14 is located at the bottom of the tank 1, and its position corresponds to the position of the air inlet 13. Furthermore, the protective plate 14 is located in the middle of the air inlet 13. When gas is blown into the tank 1 through the air inlet 13, the protective plate 14 can separate the airflow, guide a part of the airflow upward from the edge of the tank 1, and blow the other end towards the bottom of the tank 1. This can blow up the micro powder buried between the large particles again, and finally the airflow carries the micro powder into the separator 3 above for collection.
[0027] Since the height of the air inlet 13 is necessarily higher than that of the slag discharge port 12, a protective plate 14 needs to be installed at the middle of the air inlet 13. The protective plate 14 guides the airflow into the air inlet 13, dividing it into two parts: one part is guided upwards along the edge of the tank; this part mainly carries the refined micro-powder into the separator 3 above for collection. The other part blows towards the bottom of the tank; this part can re-blow up the micro-powder buried between large particles, preventing the micro-powder from being blocked by coarse particles and unable to be carried by the airflow. If the protective plate 14 is not installed, the airflow may flow directly along a single path, resulting in the micro-powder not being effectively blown up, affecting the classification effect.
[0028] like Figure 2 As shown, a top cover 2 is installed on the top of the tank 1 by multiple sets of bolts, and a discharge port 21 is opened at the upper end of the top cover 2. A separator 3 is installed on the inner top of the top cover 2. Optionally, the separator 3 adopts the common dynamic vortex CLT / A type, which has a high efficiency classification capability. When the power is turned on, the mist suction port will generate a strong negative pressure, which will cause the airflow containing micro powder to be directionally sucked in. Inside the separator 3, the micro powder particles collide with each other under the action of the high-speed rotation of the impeller. The originally tiny particles gradually aggregate into larger particles. These large particles are intercepted by the high-efficiency mist suction material and then collected through the return port, realizing the separation of micro powder and airflow.
[0029] like Figure 3 and Figure 5As shown, the interior of the tank 1 is provided with an upper grinding disc 4 and a lower grinding disc 5 for grinding. A through groove 41 is provided at the axis of the upper grinding disc 4. Multiple support rods 42 are arranged circumferentially on the side wall of the upper grinding disc 4. The ends of the multiple support rods 42 away from the upper grinding disc 4 are respectively fixedly connected to the inner wall of the tank 1. The lower surface of the upper grinding disc 4 is designed to be arc-shaped. The upper surface of the lower grinding disc 5 is designed to be an arc-shaped surface corresponding to the bottom of the upper grinding disc 4. The diameter of the lower grinding disc 5 is equal to the diameter of the upper grinding disc 4. The position of the through groove 41 corresponds to the axis of the lower grinding disc 5. Multiple protrusions 51 are arranged circumferentially on the upper surface of the lower grinding disc 5. All of the multiple protrusions 51 are hemispherical in design.
[0030] The bottom of the upper grinding disc 4 contacts the upper surface of the lower grinding disc 5. Relying on the friction between the contact surfaces, the added fly ash and slag can be ground and mixed. As the particle size of the raw material decreases, it can move along the inclined upper surface of the lower grinding disc 5 to the edge of the lower grinding disc 5 and eventually fall to the bottom of the tank 1. Furthermore, through the multiple sets of protrusions 51 arranged circumferentially on the lower grinding disc 5, as it extends to the edge of the lower grinding disc 5, the distance between two adjacent sets of protrusions 51 increases. In the early stage of grinding, the smaller distance can perform relatively dense initial crushing and mixing of the raw material. As the raw material moves to the edge of the lower grinding disc 5, the gradually increasing distance can accommodate the raw material with gradually smaller particle size, avoiding over-grinding of the already refined raw material. At the same time, the dispersion and mixing effect of the raw material is further improved during the movement, providing a better raw material basis for subsequent grading and other processes.
[0031] like Figure 4 As shown, a drive mechanism 6 is installed at the bottom of the lower grinding disc 5. The drive mechanism 6 includes an assembly box 61, a connecting plate 62 is fixedly connected to the top of the assembly box 61, a motor 63 is fixedly installed inside the drive mechanism 6, and a guide plate 7 is connected to the bottom of the drive mechanism 6. The guide plate 7 has multiple circulation grooves 71 circumferentially opened. The guide plate 7 is located above the air inlet 13 and has an arc design. The bottom of the assembly box 61 is fixedly connected to the upper surface of the guide plate 7. The top of the connecting plate 62 is rotatably / slidably connected to the bottom of the lower grinding disc 5, which can avoid obstruction when the output shaft of the motor 63 drives the lower grinding disc 5 to rotate. The output shaft of the motor 63 is fixedly connected to the lower surface of the lower grinding disc 5 through a coupling.
[0032] The center of the arc-shaped guide plate 7 protrudes upwards, higher than the edge of the guide plate 7. Therefore, during grinding, the fine powder processed by the upper grinding disc 4 and the lower grinding disc 5 falls onto the upper surface of the guide plate 7 and slides down along the arc-shaped upper surface of the guide plate 7 towards the edge. This facilitates the collection of the fine powder by blowing it up through the circulation tank 71. At the same time, it ensures that larger particles fall to the bottom of the tank 1, avoiding excessive accumulation of fine powder on the guide plate 7, which would affect the fine powder classification.
[0033] After the motor 63 is started, the output shaft of the motor 63 will drive the lower grinding disc 5 to rotate. The connecting plate 62 provides support for the lower grinding disc 5 and guides the airflow to a certain extent, so that the upward blowing airflow forms a local vortex, which makes it easier for the larger raw material particles to move to the edge of the tank 1 and finally fall to the bottom of the tank 1 from the circulation groove 71 opened on the guide plate 7.
[0034] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.
Claims
1. A device for preparing active micro-powder by grading and upgrading of fly ash and synergistic multiple slag, comprising a tank body (1), characterized in that, The top side wall of the tank body (1) is communicated with a feeding hopper (11), the bottom side wall of the tank body (1) is respectively communicated with a slag discharge port (12) and an air inlet (13), the top of the tank body (1) is provided with a top cover (2) through a plurality of bolts, and the upper end of the top cover (2) is provided with a discharge port (21), and the inner top of the top cover (2) is provided with a separator (3). The inside of the tank body (1) is provided with an upper grinding disc (4) and a lower grinding disc (5) for grinding, the bottom of the lower grinding disc (5) is provided with a driving mechanism (6), the bottom of the driving mechanism (6) is connected with a guide plate (7), a plurality of circulation grooves (71) are arranged on the guide plate (7) in a circumferential direction, and the guide plate (7) is located above the air inlet (13) and is designed in an arc shape.
2. The apparatus for preparing active micro-powder by grading and upgrading of fly ash and synergistic multi-slag according to claim 1, characterized in that, The inner wall of the tank body (1) is fixedly connected with a guard plate (14), and the guard plate (14) is arranged in an inclined manner. The guard plate (14) is arranged at the bottom of the tank body (1), and the position of the guard plate (14) corresponds to the position of the air inlet (13).
3. The apparatus for preparing active micro-powder by grading and upgrading of fly ash and synergistic multi-slag according to claim 1, characterized in that, A through groove (41) is arranged at the shaft center of the upper grinding disc (4), a plurality of support rods (42) are arranged on the side wall of the upper grinding disc (4) in a circumferential direction, and one end of each of the plurality of support rods (42) is fixedly connected with the inner wall of the tank body (1) and away from the upper grinding disc (4). The lower surface of the upper grinding disc (4) is designed in an arc shape.
4. The apparatus for preparing active micro-powder by grading and upgrading of fly ash and synergistic multi-slag according to claim 3, characterized in that, The upper surface of the lower grinding disc (5) is designed in an arc shape corresponding to the bottom of the upper grinding disc (4). The diameter of the lower grinding disc (5) is equal to the diameter of the upper grinding disc (4), and the position of the through groove (41) corresponds to the shaft center of the lower grinding disc (5). The upper surface of the lower grinding disc (5) is provided with a plurality of protrusions (51) in a circumferential direction, and each of the plurality of protrusions (51) is designed in a hemispherical shape.
5. The apparatus for preparing active micro-powder by grading and upgrading of fly ash and synergistic multi-slag according to claim 1, characterized in that, The driving mechanism (6) comprises an assembly box (61), the top of the assembly box (61) is fixedly connected with a connecting plate (62), and the inside of the driving mechanism (6) is fixedly provided with a motor (63).
6. The apparatus for preparing active micro-powder by grading and upgrading of fly ash and synergistic multi-slag according to claim 5, characterized in that, The bottom of the assembly box (61) is fixedly connected with the upper surface of the guide plate (7), the top of the connecting plate (62) is rotatably connected with the bottom of the lower grinding disc (5), and the output shaft of the motor (63) is fixedly connected with the lower surface of the lower grinding disc (5) through a shaft coupling.