A material feeding device for nano calcium carbonate modified material

Abstract

This utility model discloses a material feeding device for the modification of nano-calcium carbonate, including a storage tank. A cover plate is fixedly installed on the upper surface of the storage tank by multiple first bolts. A sealing gasket is fixedly installed on the bottom wall of the cover plate. A rotating shaft is rotatably installed on the bottom wall of the cover plate. A motor connected to the rotating shaft is fixedly installed on the upper surface of the cover plate. Multiple stirring blades are fixedly installed on the outer wall of the rotating shaft by a mounting sleeve. Each stirring blade is inclined. By setting up components such as a rotating shaft, stirring blades, connecting rods, and scrapers, this utility model allows the stirring blades to rotate when the rotating shaft drives them to rotate. The adjacent stirring blades with opposite inclination directions can form a bidirectional shearing force on the nano-calcium carbonate, effectively breaking up agglomerates and avoiding conveying blockages caused by agglomeration, thus improving the continuity of feeding. At the same time, the scraper rotates with the rotating shaft against the inner wall of the storage tank, which can promptly scrape off the material adhering to the wall, reducing material loss and cleaning difficulty.

Description

Technical Field

[0001] This utility model relates to the field of nano-calcium carbonate processing technology, and in particular to a material feeding device for nano-calcium carbonate modification. Background Technology

[0002] Nano calcium carbonate is an ultrafine calcium carbonate (CaCO3) powder with a particle size between 1 and 100 nanometers. It has unique properties such as small size effect and surface effect, and is widely used in plastics, rubber, coatings and other fields.

[0003] Nano-calcium carbonate, as an important inorganic chemical raw material, needs to be transported to the reaction equipment via a feeding device before modification treatment (such as surface coating and activation modification). However, due to the characteristics of nano-calcium carbonate, such as small particle size (1-100nm), large specific surface area, and high surface energy, nanoparticles are prone to agglomeration into large particles due to van der Waals forces during the traditional feeding process. This leads to blockage of the storage tank outlet and conveying channel, affecting the continuity of feeding. Furthermore, the powder dust generated during the feeding process endangers the health of operators and pollutes the environment. Therefore, it is necessary to redesign a material feeding device for the modification of nano-calcium carbonate to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a material feeding device for the modification of nano-calcium carbonate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A material feeding device for nano-calcium carbonate modification includes a storage tank. A cover plate is fixedly installed on the upper surface of the storage tank by multiple first bolts. A sealing gasket is fixedly installed on the bottom wall of the cover plate. A rotating shaft is rotatably installed on the bottom wall of the cover plate. A motor connected to the rotating shaft is fixedly installed on the upper surface of the cover plate. Multiple stirring blades are fixedly installed on the outer wall of the rotating shaft by a mounting sleeve. Each stirring blade is inclined, and the inclination directions of each pair of adjacent stirring blades are opposite. Multiple connecting rods are fixedly installed on the outer wall of the mounting sleeve. Scrapers are fixedly installed at the ends of two connecting rods on the same side by a connecting mechanism. Screwdriver blades are fixedly installed at the ends of the rotating shaft. The screwdriver blades are located inside the outlet end of the storage tank. A humidity detector and a hot air blower are fixedly installed on the upper surface of the cover plate. The humidity detector probe and the hot air blower outlet pipe both penetrate to the bottom of the cover plate. An annular air blowing pipe is fixedly installed on the outer wall of the hot air blower outlet pipe. Multiple air blowing holes communicating with the interior are opened on the outer wall of the annular air blowing pipe. A fixing plate is fixedly installed on the outer wall of the storage tank by a fixing mechanism.

[0006] Preferably, the connecting mechanism includes a connecting frame fixedly installed at the end of the connecting rod, and the scraper is fixedly installed inside the two connecting frames on the same side by a second bolt.

[0007] Preferably, the fixing mechanism includes a fixing sleeve fixedly installed on the outer wall of the storage tank, and the fixing plate is fixedly installed on the bottom wall of the fixing sleeve.

[0008] Preferably, a mixed-flow fan pump is fixedly installed on the upper surface of the fixed plate, a dust suction hood is fixedly installed on the outer wall of the inlet pipe of the mixed-flow fan pump, and a dust collection bag is fixedly installed on the outer wall of the outlet pipe of the mixed-flow fan pump by means of clamps.

[0009] Preferably, a control module and a wireless communication module are fixedly installed on the upper surface of the cover plate, and the control module is electrically connected to the motor, humidity detector, hot air blower, mixed flow fan pump and wireless communication module.

[0010] The beneficial effects of this utility model are: 1. By setting up components such as a rotating shaft, stirring blades, connecting rods and scrapers, when the rotating shaft drives the stirring blades to rotate, the stirring blades of two adjacent layers with opposite inclination directions can form a bidirectional shearing force on the nano-calcium carbonate, effectively breaking up agglomerates, avoiding conveying blockages caused by agglomeration, and improving the continuity of feeding. At the same time, the scraper rotates with the rotating shaft against the inner wall of the storage tank, which can scrape off the material adhering to the wall in time, reduce material loss, and reduce cleaning difficulty.

[0011] 2. By setting up components such as a mixed-flow fan pump, a dust hood, and dust collection bags, the mixed-flow fan pump can suck in trace amounts of dust that may escape during the feeding process through the dust hood, and then the dust collection bags intercept and collect it, avoiding dust diffusion and environmental pollution, protecting the health of operators, and meeting environmental protection requirements.

[0012] 3. By setting up components such as humidity detectors, hot air blowers and ring blowers, the humidity detectors can monitor the humidity in the storage tank in real time, and the hot air generated by the hot air blowers is evenly blown through the ring blowers to dry the materials in a timely manner, preventing nano-calcium carbonate from caking due to moisture absorption and ensuring the quality of raw materials for subsequent modification treatment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a material feeding device for nano-calcium carbonate modification proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the vertical section structure; Figure 3 This is a top view of a material feeding device for nano-calcium carbonate modification proposed in this utility model. Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0014] In the diagram: 1. Storage tank, 2. Cover plate, 3. Sealing gasket, 4. Rotating shaft, 5. Motor, 6. Mounting sleeve, 7. Stirring blade, 8. Connecting rod, 9. Connecting frame, 10. Scraper, 11. Screwdriver blade, 12. Humidity detector, 13. Hot air blower, 14. Circular air blowing pipe, 15. Fixing sleeve, 16. Fixing plate, 17. Mixed flow fan pump, 18. Dust collection hood, 19. Dust collection bag, 20. Control module, 21. Wireless communication module. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-5 A material feeding device for nano-calcium carbonate modification includes a storage tank 1. A cover plate 2 is fixedly installed on the upper surface of the storage tank 1 by multiple first bolts. A sealing gasket 3 is fixedly installed on the bottom wall of the cover plate 2. A rotating shaft 4 is rotatably installed on the bottom wall of the cover plate 2. A motor 5 connected to the rotating shaft 4 is fixedly installed on the upper surface of the cover plate 2. Multiple stirring blades 7 are fixedly installed on the outer wall of the rotating shaft 4 by mounting sleeves 6. Each stirring blade 7 is inclined, and the inclination direction of each two adjacent layers of stirring blades 7 is opposite. Multiple connecting rods 8 are fixedly installed on the outer wall of the mounting sleeves 6. Two connecting rods on the same side are connected to the motor 5. Scraper 10 is fixedly installed at both ends of rod 8 through a connecting mechanism. Screw blade 11 is fixedly installed at the end of rotating shaft 4. Screw blade 11 is located inside the outlet end of storage tank 1. Humidity detector 12 and hot air blower 13 are fixedly installed on the upper surface of cover plate 2. The probe of humidity detector 12 and the outlet pipe of hot air blower 13 both penetrate to the bottom of cover plate 2. An annular air blowing pipe 14 is fixedly installed on the outer wall of outlet pipe of hot air blower 13. Multiple air blowing holes communicating with the interior are opened on the outer wall of annular air blowing pipe 14. A fixing plate 16 is fixedly installed on the outer wall of storage tank 1 through a fixing mechanism.

[0017] Furthermore, the sealing gasket 3 is made of an elastic material with aging resistance, which can tightly fit the contact surface between the top of the storage tank 1 and the bottom wall of the cover plate 2. This prevents impurities in the outside air from entering the storage tank 1 and contaminating the nano-calcium carbonate material, and also prevents dust generated during material stirring from escaping from the gaps. The design of opposite inclination directions of each pair of adjacent stirring blades 7 allows nano-calcium carbonate material at different heights in the storage tank 1 to form vertical convection during stirring, reducing dead corners of material accumulation and improving the uniformity of stirring. The outer wall of the scraper 10 is in contact with the inner wall of the storage tank 1. When the rotating shaft 4 drives the connecting rod 8 to rotate, the scraper 10 can simultaneously scrape off the material attached to the inner wall of the storage tank 1, reducing the amount of material residue. The air holes of the annular air blower 14 are evenly arranged along its circumference, so that the hot air delivered by the hot air blower 13 can evenly cover the internal space of the storage tank 1, ensuring that the material in all areas can be dried in a consistent manner. The fixing mechanism can firmly connect the fixing plate 16 to the outer wall of the storage tank 1, providing stable support for the subsequent installation of other auxiliary components.

[0018] The connecting mechanism includes a connecting frame 9 fixedly installed at the end of the connecting rod 8, and a scraper 10 fixedly installed inside the two connecting frames 9 on the same side by a second bolt.

[0019] Furthermore, the connecting frame 9 is symmetrically distributed at the end of the connecting rod 8, and its inner contour matches the outer contour of the scraper 10. This can position the scraper 10 and prevent it from shifting during rotation. The scraper 10 is fixed with a second bolt, which not only ensures a firm connection but also makes it easy for staff to disassemble and replace the scraper 10 when it wears out due to long-term use. This eliminates the need to adjust the entire connecting rod 8 structure and reduces maintenance difficulty.

[0020] The fixing mechanism includes a fixing sleeve 15 fixedly installed on the outer wall of the storage tank 1, and a fixing plate 16 fixedly installed on the bottom wall of the fixing sleeve 15.

[0021] Furthermore, the fixing sleeve 15 is connected to the outer wall of the storage tank 1 by welding to ensure the connection strength and prevent the fixing plate 16 from loosening when bearing the weight of the component. The bottom wall of the fixing sleeve 15 is fixed to the fixing plate 16 by welding to ensure that the fixing plate 16 remains horizontal after installation, providing a stable installation benchmark for the components to be installed later and preventing abnormal operation of the components due to the tilt of the fixing plate 16.

[0022] A mixed-flow fan pump 17 is fixedly installed on the upper end face of the fixed plate 16. A dust suction hood 18 is fixedly installed on the outer wall of the inlet pipe of the mixed-flow fan pump 17. A dust collection bag 19 is fixedly installed on the outer wall of the outlet pipe of the mixed-flow fan pump 17 by means of a clamp.

[0023] Furthermore, the dust collector bag 19 is made of filter cloth material with high filtration accuracy, which can filter the dust-laden gas sucked in by the mixed flow fan pump 17, so that the filtered clean gas is discharged, reducing pollution to the surrounding environment. The dust collector bag 19 is fixed by clamps, which is simple and quick to operate. The staff can periodically loosen the clamps to remove the dust collector bag 19, clean the dust collected in the bag, or directly replace the dust collector bag 19 to ensure the dust removal effect.

[0024] A control module 20 and a wireless communication module 21 are fixedly installed on the upper surface of the cover plate 2. The control module 20 is electrically connected to the motor 5, humidity detector 12, hot air blower 13, mixed flow fan pump 17 and wireless communication module 21.

[0025] Furthermore, the control module 20 can receive the humidity data of the material in the storage tank 1 transmitted by the humidity detector 12 in real time. When the humidity exceeds the preset threshold, it automatically controls the hot air blower 13 to start and deliver hot air to the storage tank 1 to dry the material. After the humidity drops to the normal range, it automatically controls the hot air blower 13 to shut down. At the same time, the control module 20 can also adjust the speed of the motor 5, thereby changing the stirring speed of the stirring blade 7 and the feeding speed of the auger blade 11 to adapt to the material processing requirements of different modification processes. The wireless communication module 21 can realize the signal interaction between the control module 20 and the remote control terminal. The staff can view the operating parameters of the device in real time through the remote terminal. If the device malfunctions, the staff can also send instructions to the control module 20 through the remote terminal to adjust the operating status of the device or shut it down for maintenance in a timely manner.

[0026] In use, the nano-calcium carbonate raw material is poured into the storage tank 1 through the top end, and then the cover plate 2 is closed. With the help of the sealing gasket 3 on the bottom wall of the cover plate 2, a sealed space is formed inside the storage tank 1 to prevent moisture from entering the tank and to prevent dust from escaping from the tank opening during subsequent feeding. A start command is sent to the control module 20 via the wireless communication module 21 through the remote terminal. The control module 20 then triggers the motor 5 to run. The motor 5 drives the rotating shaft 4 to rotate along its own axis. When the rotating shaft 4 rotates, the outer wall mounting sleeve 6 rotates synchronously, which in turn drives the multi-layer stirring blades 7 and multiple connecting rods 8 to rotate. During the rotation of the stirring blades 7, because the adjacent two layers are tilted in opposite directions, a bidirectional shearing force is formed on the nano-calcium carbonate raw material in the storage tank 1, which gradually breaks up the agglomerates formed in the raw material and keeps the raw material in a loose state. Meanwhile, the connecting rod 8 drives the scraper 10 at the end to rotate against the inner wall of the storage tank 1, scraping off the raw materials adsorbed on the tank wall, avoiding material sticking to the wall and causing loss, and also preventing cleaning problems caused by long-term sticking to the wall. The humidity detector 12 monitors the humidity in the storage tank 1 in real time and transmits the monitoring data to the control module 20 in real time. If the control module 20 determines that the humidity exceeds the preset range, it immediately starts the hot air blower 13. The hot air generated by the hot air blower 13 is delivered to the annular blower 14 through the outlet pipe, and then blown evenly into the storage tank 1 through multiple blow holes on the outer wall of the annular blower 14 to dry the raw materials, preventing the raw materials from accumulating due to moisture absorption and affecting the subsequent conveying and modification effect. After stirring, dispersing and drying, the raw materials are slowly moved towards the outlet end of the storage tank 1 under the rotation of the auger blades 11 at the end of the rotating shaft 4, and finally smoothly conveyed to the outside of the storage tank 1 and enter the subsequent nano-calcium carbonate modification reaction equipment. During the feeding process, the control module 20 simultaneously starts the mixed-flow fan pump 17. The mixed-flow fan pump 17 sucks in the trace dust that may escape from the outlet of the storage tank 1 through the dust suction hood 18 on the outer wall of the inlet pipe. The sucked-in dust is transported by the mixed-flow fan pump 17 to the dust collection bag 19 on the outer wall of the outlet pipe. The dust collection bag 19 intercepts and collects the dust to prevent it from spreading into the air and causing pollution, thus protecting the health of the operators. The control module 20 can also upload the real-time operating parameters of the device to the production line's central control system through the wireless communication module 21. The staff can remotely monitor the device's operation through the central control system. If parameters need to be adjusted, instructions can also be sent through the central control system and transmitted to the control module 20 via the wireless communication module 21. The control module 20 then adjusts the working status of each component to achieve coordinated operation between the device and the production line.

[0027] After a single feeding is completed, the control module 20 can sequentially shut down the mixed-flow fan pump 17, the hot air blower 13, and the motor 5 according to the instructions of the main control system or the preset program. After the device has completely stopped running, the cover plate 2 can be opened to inspect or clean the inside of the storage tank 1. If the scraper 10 is worn, the old scraper 10 can be removed and replaced with a new scraper 10 by removing the second bolt on the connecting frame 9 to ensure the effect of subsequent use. If the dust collector bag 19 collects a lot of dust, the clamp can be loosened to remove the dust collector bag 19, clean the dust, and reinstall it to ensure the stability of the dust removal function.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A material feeding device for nano-calcium carbonate modification, comprising a storage tank (1), characterized in that, The upper end face of the storage tank (1) is fixedly mounted with a cover plate (2) by multiple first bolts. A sealing gasket (3) is fixedly mounted on the bottom wall of the cover plate (2). A rotating shaft (4) is rotatably mounted on the bottom wall of the cover plate (2). A motor (5) connected to the rotating shaft (4) is fixedly mounted on the upper end face of the cover plate (2). Multiple stirring blades (7) are fixedly mounted on the outer wall of the rotating shaft (4) by a mounting sleeve (6). Each stirring blade (7) is inclined, and the inclination direction of each two adjacent stirring blades (7) is opposite. Multiple connecting rods (8) are fixedly mounted on the outer wall of the mounting sleeve (6). The ends of the two connecting rods (8) on the same side are connected by a connecting mechanism. A scraper (10) is fixedly installed together. An auger blade (11) is fixedly installed at the end of the rotating shaft (4). The auger blade (11) is located inside the outlet end of the storage tank (1). A humidity detector (12) and a hot air blower (13) are fixedly installed on the upper surface of the cover plate (2). The probe of the humidity detector (12) and the outlet pipe of the hot air blower (13) both penetrate to the bottom of the cover plate (2). An annular air blowing pipe (14) is fixedly installed on the outer wall of the outlet pipe of the hot air blower (13). The outer wall of the annular air blowing pipe (14) has multiple air blowing holes that communicate with the interior. A fixing plate (16) is fixedly installed on the outer wall of the storage tank (1) through a fixing mechanism.

2. The material feeding device for nano-calcium carbonate modification according to claim 1, characterized in that, The connecting mechanism includes a connecting frame (9) fixedly installed at the end of the connecting rod (8), and the scraper (10) is fixedly installed inside the two connecting frames (9) on the same side by a second bolt.

3. The material feeding device for nano-calcium carbonate modification according to claim 2, characterized in that, The fixing mechanism includes a fixing sleeve (15) fixedly installed on the outer wall of the storage tank (1), and a fixing plate (16) fixedly installed on the bottom wall of the fixing sleeve (15).

4. The material feeding device for nano-calcium carbonate modification according to claim 3, characterized in that, A mixed-flow fan pump (17) is fixedly installed on the upper end face of the fixed plate (16). A dust suction hood (18) is fixedly installed on the outer wall of the inlet pipe of the mixed-flow fan pump (17). A dust collection bag (19) is fixedly installed on the outer wall of the outlet pipe of the mixed-flow fan pump (17) by means of a clamp.

5. A material feeding device for nano-calcium carbonate modification according to claim 4, characterized in that, The control module (20) and the wireless communication module (21) are fixedly installed on the upper surface of the cover plate (2). The control module (20) is electrically connected to the motor (5), humidity detector (12), hot air blower (13), mixed flow fan pump (17) and wireless communication module (21).

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