Powder surface modification apparatus

Abstract

The utility model belongs to powder modification auxiliary equipment technical field relates to a kind of powder surface modification equipment, including the installation of modification cylinder, atomization pressurizer and hot air machine on support ring, and feed tank is hung on support ring, detachable installation has hot flow catalytic device on modification cylinder, hot air machine is connected hot flow catalytic device by air pipe, and modification cylinder bottom surface is equipped with stirring cleaning device, and modification cylinder inner chamber side and hot flow catalytic device are all closely attached stirring cleaning device.The utility model through hot flow catalytic device, not only can provide suitable temperature environment for modification reaction, accelerate the performance of chemical reaction, but also can be synergized stirring with stirring cleaning device, promote the flow of powder and modifier, enhance the contact and collision frequency between them, to speed up the speed of modification reaction, shorten modification cycle;Through stirring cleaning device, stick powder is promptly removed in stirring process, reduce the jam and blockage phenomenon of powder in equipment interior.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for powder modification, and in particular to a powder surface modification device. Background Technology

[0002] Powder modification involves modifying the surface of inorganic mineral powder fillers by treating the powder surface using physical or chemical methods.

[0003] In polymer materials and composite materials such as plastics, rubber, and adhesives, non-metallic powder fillers, such as calcium carbonate, kaolin, talc, zinc oxide, aluminum oxide, aluminum hydroxide, and magnesium hydroxide, must undergo surface modification to enhance their compatibility with the matrix, dispersibility, mechanical strength, and overall performance.

[0004] Currently used powder surface modification equipment, such as high-speed mixers, involves powder and modifier falling directly from the feed inlet at a fixed location. This leads to the accumulation of powder and modifier in the same spot, resulting in insufficient mixing and difficulty in cleaning. Furthermore, relying solely on mixing for modification results in low efficiency and poor batch quality stability of the modified products. Utility Model Content

[0005] To address the problem of low efficiency in existing mixing modification techniques, this invention provides a powder surface modification device.

[0006] The technical solution of this utility model is achieved through the following scheme: a powder surface modification device, including a support ring, a modification cylinder, an atomizing pressurizer and a hot air blower. The modification cylinder, the atomizing pressurizer and the hot air blower are installed on the support ring. A feed box is suspended on the support ring. A hot flow catalytic device is detachably installed on the modification cylinder. The hot air blower is connected to the hot flow catalytic device through a duct. A stirring and cleaning device is provided on the bottom surface of the modification cylinder. The inner side of the modification cylinder and the hot flow catalytic device are both in close contact with the stirring and cleaning device.

[0007] The atomizing pressurizer is connected to the dispensing pipe, which is suspended from the top surface of the inner cavity of the modified cylinder by a lifting ring.

[0008] Through the above technical solutions, the thermal flow catalytic device can not only provide a suitable temperature environment for the modification reaction and accelerate the chemical reaction, but also work in conjunction with the stirring and cleaning device to promote the flow of powder and modifier, increase the frequency of contact and collision between them, thereby accelerating the speed of the modification reaction and shortening the modification cycle; the stirring and cleaning device can also remove sticky powder in time during the stirring process, reducing the phenomenon of powder jamming and clogging inside the equipment.

[0009] Preferably, the hot flow catalytic device includes an inner air duct and an outer air duct, the outer air duct is flanged and connected to the inner air duct, the inner air duct is located inside the outer air duct, the surface of the inner air duct is covered with a filter layer, and both the inner and outer air ducts are located inside the modified cylinder cavity.

[0010] Preferably, the hot air blower is connected to the inner air duct via an air duct, and the flange of the inner air duct is connected to the top surface of the modified cylinder.

[0011] Preferably, the inner air duct surface has a plurality of air inlets arranged in a ring array, and the outer air duct surface has a plurality of air outlets arranged in a ring array, with filters installed inside the plurality of air outlets.

[0012] The above technical solution employs a double-layer structure of inner and outer air ducts, with double-layer filtration using filter layers and filter screens to remove any impurities and particulate matter that may be carried, ensuring the cleanliness of the hot air. Multi-stage airflow through multiple air outlets and vents ensures that the hot air is more evenly distributed within the modification cylinder. The flow of hot air causes the powder and modifier to tumble and mix thoroughly within the cylinder, ensuring that each powder particle comes into full contact with the hot air and modifier, thus improving the quality and performance of the modified powder. The filter screen also prevents flowing powder particles from entering the interior of the air duct.

[0013] Preferably, the stirring and cleaning device includes a drive motor, a stirring fan, side wall cleaning plates, and a cleaning brush. The drive motor is fixedly installed on the bottom surface of the modified cylinder, and the drive motor shaft is connected to the stirring fan and the cleaning brush. Side wall cleaning plates are provided at both ends of the stirring fan.

[0014] Preferably, the sidewall cleaning plate abuts against the side of the inner cavity of the modified cylinder, and the cleaning brush is in close contact with the surface of the hot flow catalytic device.

[0015] Preferably, the feed box is connected to the modification cylinder through a feed pipe, the feed pipe is equipped with a feeding pump, the bottom surface of the modification cylinder is connected to a temporary storage box through a discharge pipe, and the discharge pipe is equipped with a discharge valve.

[0016] Through the above technical solutions, the powder adhering to the inner wall of the modification cylinder is scraped off in time by the side wall cleaning plate, preventing the powder from accumulating on the side wall and forming dead corners, which would affect the mixing effect and modification quality. At the same time, the cleaning brush can thoroughly clean the surface of the hot flow catalytic device, removing the powder and impurities adhering to its surface, avoiding these residues from hindering the flow and distribution of hot air, ensuring that hot air can enter the modification cylinder evenly, and providing a stable temperature environment for the modification reaction.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. This utility model, through a thermal flow catalytic device, not only provides a suitable temperature environment for the modification reaction and accelerates the chemical reaction, but also works in conjunction with a stirring and cleaning device to promote the flow of powder and modifier, enhance the frequency of contact and collision between them, thereby accelerating the speed of the modification reaction and shortening the modification cycle; the stirring and cleaning device removes sticky powder in a timely manner during the stirring process, reducing the phenomenon of powder sticking and clogging inside the equipment.

[0019] 2. The system employs a double-layer structure with inner and outer air ducts, and utilizes a double-layer filter layer and filter screen to remove any impurities and particulate matter that may be carried, ensuring the cleanliness of the hot air. Multiple air outlets and vents ensure that the hot air is distributed more evenly within the modification cylinder. The hot air flow causes the powder and modifier to tumble and mix thoroughly within the cylinder, ensuring that each powder particle comes into full contact with the hot air and modifier, thus improving the quality and performance of the modified powder. The filter screen also prevents flowing powder particles from entering the air duct.

[0020] 3. The sidewall cleaning blades promptly scrape off the powder adhering to the inner wall of the modification cylinder, preventing powder from accumulating in dead corners and affecting the mixing effect and modification quality. At the same time, the cleaning brush can thoroughly clean the surface of the hot flow catalytic device, removing powder and impurities adhering to its surface, avoiding these residues from obstructing the flow and distribution of hot air, ensuring that hot air can enter the modification cylinder evenly, and providing a stable temperature environment for the modification reaction. Attached Figure Description

[0021] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram from the main perspective of this utility model;

[0023] Figure 3 This is a schematic diagram of the main view half-section structure of this utility model after removing the support ring;

[0024] Figure 4 This is a schematic diagram of the internal assembly structure of the modified cylinder of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal explosion structure of the modified cylinder of this utility model;

[0026] Figure 6 This is an exploded structural diagram of the thermal flow catalytic device of this utility model.

[0027] Explanation of reference numerals in the attached diagram: 1. Support ring; 2. Modified cylinder; 3. Hot air blower;

[0028] 4. Hot flow catalytic converter; 41. Inner air duct; 42. Outer air duct; 43. Filter layer; 44. Fastening clamp;

[0029] 5. Stirring and cleaning device; 51. Drive motor; 52. Stirring fan; 53. Side wall cleaning plate; 54. Cleaning brush; 6. Atomizing pressurizer; 7. Discharge pipe; 8. Feed box; 9. Feeding pump; 10. Discharge valve; 11. Temporary storage box; 12. Lifting ring. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] A powder surface modification device, such as Figures 1-6 As shown, the assembly includes a support ring 1, a modified cylinder 2, an atomizing pressurizer 6, and a hot air blower 3. The modified cylinder 2, atomizing pressurizer 6, and hot air blower 3 are mounted on the support ring 1. A feed box 8 is suspended from the support ring 1. The support ring 1 supports the modified cylinder 2 at its center. Both the atomizing pressurizer 6 and the hot air blower 3 are located on the annular platform of the support ring 1. The atomizing pressurizer 6 consists of an atomizer section and a pressurizer section. After atomizing the modifier, it is conveyed to the pressurizer. After pressurization, the modifier is sprayed onto the powder through a water mist nozzle on the outlet pipe 7. The feed box... 8. A hot flow catalytic device 4 is detachably installed on the mounting platform on the support ring 1. The hot flow catalytic device 4 is integrally flanged to the top surface of the modified cylinder 2. The hot air blower 3 is connected to the hot flow catalytic device 4 through the air duct. The air outlet of the hot flow catalytic device 4 is located inside the modified cylinder 2. A stirring and cleaning device 5 is provided on the bottom surface of the modified cylinder 2. The inner side of the modified cylinder 2 and the hot flow catalytic device 4 are closely attached to the stirring and cleaning device 5 to clean the powder from the inner side of the modified cylinder 2 and the surface of the hot flow catalytic device 4, so as to avoid powder residue.

[0033] The hot flow catalytic device 4 blows hot air evenly into the modification cylinder 2 to provide a suitable temperature environment for powder modification. At the same time, it agitates the powder to disperse it, promotes the chemical reaction between the modifier and the powder, and improves the modification efficiency and quality.

[0034] like Figure 4As shown, the atomizing pressurizer 6 is connected to the outlet pipe 7. The outlet pipe 7 is suspended from the top surface of the inner cavity of the modified cylinder 2 by the hanging ring 12. The outlet pipe 7 is annular in shape. The annular outlet pipe 7 is wrapped around the hot flow catalytic device 4 and has several water mist nozzles installed in an array. The modifier can be sprayed evenly onto the powder inside the modified cylinder 2 from multiple directions and angles. The hot flow catalytic device 4 passes through the space at the axis of the annular outlet pipe 7, making full use of the vertical space inside the modified cylinder 2 and the idle space around the hot flow catalytic device 4.

[0035] like Figure 2 As shown, the feed box 8 is connected to the modification cylinder 2 through the feed pipe. The feed pipe is equipped with a feeding pump 9. The bottom surface of the modification cylinder 2 is connected to the temporary storage box 11 through the discharge pipe. The discharge pipe is equipped with a discharge valve 10. The feeding pump 9 is preferably a powder conveying pump, and the discharge valve 10 is preferably an electric valve.

[0036] like Figure 5 and Figure 6 As shown, the hot flow catalytic device 4 includes an inner air duct 41 and an outer air duct 42. The outer air duct 42 is flanged and connected to the inner air duct 41. The inner air duct 41 is located inside the outer air duct 42. The surface of the inner air duct 41 is covered with a filter layer 43. Both the inner air duct 41 and the outer air duct 42 are located inside the modified cylinder 2. The filter layer 43 is preferably filter cotton. The filter layer 43 is fixed to the surface of the inner air duct 41 by several clamps 44. The clamps 44 are preferably stainless steel clamps, and there are three clamps arranged in an upper, middle and lower array. This facilitates the replacement of the filter layer 43 while preventing the filter layer 43 from being blown off by hot air. It also prevents the filter layer 43 from forming a gap with the inner air duct 41, which would cause air leakage or the escape of pollutants. This maintains the sealing and filtration efficiency of the entire device. The filter screen at the air outlet on the surface of the outer air duct 42 performs double filtration to ensure the isolation of external impurities. When the pre-purified hot air passes through the air outlet on the surface of the outer air duct 42, the filter screen at the air outlet will perform a second filtration to further remove any possible residual small particles and impurities.

[0037] The outer ventilation duct 42 is essentially fitted onto the inner ventilation duct 41.

[0038] like Figure 5 As shown, the modified cylinder 2 has an isolation groove at the end of the external air duct 42. The flange connection is usually a weak point of the equipment. If it is corroded, it may lead to poor sealing and air leakage, which will affect the normal operation of the entire equipment. The isolation groove at the end of the external air duct 42 effectively isolates the powder and modifier from the flange connection of the external air duct 42, preventing the substances from directly contacting the flange connection of the external air duct 42, reducing the possibility of corrosion, extending the service life of the external air duct 42, and reducing the maintenance and replacement costs of the equipment.

[0039] Both the outlet duct and the outer duct 42 are in a closed state. When hot air is injected, it impacts the closed end of the inner duct 41, causing the hot air to enter the outer duct 42 from the square air inlet on the side. This slows down the flow of the hot air to a certain extent, and then it is discharged into the inner cavity of the modified cylinder 2 from the air outlet of the outer duct 42. Through the cooperation of the filter layer 43 and the filter screen, impurities in the hot air can be efficiently captured and filtered to keep it clean.

[0040] The hot air blower 3 is connected to the inner air duct 41 through the air duct. The inner air duct 41 is flanged and connected to the top surface of the modified cylinder 2. Several air outlets are arranged in a ring array on the surface of the inner air duct 41. The air outlets are square holes with a large filtration area and flow rate. When hot air passes through the inner air duct 41, the square holes will guide and turn the airflow, further slowing down its speed, thereby effectively mitigating sudden changes in flow rate, allowing the hot air to fully contact the filter layer 43, improving the filtration effect, preventing the filter layer 43 from being subjected to severe impact, and extending its service life.

[0041] During its flow, the hot air undergoes a turning and diffusion process, achieving a slow-flow treatment that provides a stable airflow environment for powder modification and improves the uniformity of the modification effect. The square air inlets in a ring array on the surface of the inner air duct 41 and the circular air outlets on the surface of the outer air duct 42 together constitute a hot air velocity control system. The square air inlets guide and turn the airflow, slowing down its speed so that the hot air enters the outer air duct 42 at a suitable flow rate. The air outlets on the outer air duct 42 further disperse and limit the hot air flow, ensuring that the hot air is discharged into the inner cavity of the modification cylinder 2 at a uniform and slow speed.

[0042] The outer air duct 42 has a ring array of several air outlets on its surface, and each air outlet is equipped with a filter screen. The air outlets are circular, and the filter screen effectively prevents powder disturbed by the wind and the stirring fan 52 from entering the air duct while filtering the hot air for a second time.

[0043] During the powder modification process, the coordinated disturbance of the wind and the stirring fan 52 causes some powder to be lifted. The filter screen in the air outlet of the outer air duct 42 can effectively prevent these disturbed powders from entering the air duct. The circular air outlet of the outer air duct 42 allows hot air to be discharged in a relatively uniform radial pattern, forming a certain airflow field in the modification cylinder 2. The wind disturbance can break the possible agglomeration of powder, causing the powder particles to separate from each other under the action of airflow, increasing the dispersibility of the powder. At the same time, the hot airflow can effectively promote the powder to fully contact the modifier spray and mix with it.

[0044] like Figure 3 , Figure 4 and Figure 5As shown, the stirring and cleaning device 5 includes a drive motor 51, a stirring fan 52, a side wall cleaning plate 53, and a cleaning brush 54. The drive motor 51 is fixedly installed on the bottom surface of the modified cylinder 2. The shaft of the drive motor 51 is connected to the stirring fan 52 and the cleaning brush 54. The stirring fan 52 is provided with side wall cleaning plates 53 at both ends. The drive motor 51 is preferably a servo motor. The stirring fan 52 abuts against the bottom surface of the inner cavity of the modified cylinder 2 and is provided with a material flow slope to prevent the powder from accumulating and not flowing during rotation.

[0045] The side wall cleaning plate 53 abuts against the inner side of the modified cylinder 2, the cleaning brush 54 is in close contact with the surface of the hot flow catalytic device 4, the cleaning brush 54 is in close contact with the surface of the outer air duct 42, the discharge pipe is located on one side of the drive motor 51, and the stirring fan 52 pushes the material to accelerate the discharge during discharge.

[0046] During equipment operation, the side wall cleaning plate 53 rotates together with the stirring fan 52 to promptly scrape off the powder adhering to the side wall of the modified cylinder 2. The side wall cleaning plate 53 is adapted to the inner cavity side wall of the modified cylinder 2. Furthermore, the powder may adhere to the surface of the hot flow catalytic device 4 with the airflow, affecting the heat dissipation and filtration effect of the device. The cleaning brush 54 can continuously clean these adhered powders and keep the surface of the hot flow catalytic device 4 clean.

[0047] During the discharge process, the mixing fan 52 rotates continuously, using its rotational force to push the powder towards the discharge pipe, thereby accelerating the discharge.

[0048] Working principle: The staff introduces the powder raw material into the feed box 8, and then the feed pump 9 introduces it into the modification cylinder 2. The atomizer further atomizes the modifier, and then the modifier is pressurized by the pressurizer and sprayed out from the outlet pipe 7.

[0049] At the same time, the hot flow catalytic device 4 and the stirring and cleaning device 5 are started. The hot flow catalytic device 4 introduces filtered hot air to accelerate the catalytic contact between the atomized modifier and the powder raw material. The stirring and cleaning device 5 works together to make the powder fully stirred and dispersed in the modification cylinder 2. When the discharge valve 10 is opened to discharge the powder, the hot flow catalytic device 4 is stopped, and the powder falls. The powder on the inner wall of the modification cylinder 2 and the outer air duct 42 is cleaned and scraped by the side wall cleaning plate 53 and the cleaning brush 54. At this time, the stirring fan 52 slowly rotates to stir the powder, so that the powder can be discharged from the modification cylinder 2 more conveniently and smoothly and enter the temporary storage box 11.

[0050] All parts and equipment use conventional models found in the prior art, and the circuit connections also use conventional connection methods found in the prior art, which will not be described in detail here. The contents not described in detail in this specification (such as atomizers and pressurizers) are prior art known to those skilled in the art.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A powder surface modification apparatus, characterized by: The device includes a support ring (1), a modified cylinder (2), an atomizing pressurizer (6), and a hot air blower (3). The modified cylinder (2), the atomizing pressurizer (6), and the hot air blower (3) are installed on the support ring (1). A feed box (8) is suspended on the support ring (1). A hot flow catalytic device (4) is detachably installed on the modified cylinder (2). The hot air blower (3) is connected to the hot flow catalytic device (4) through a duct. A stirring and cleaning device (5) is provided on the bottom surface of the modified cylinder (2). The inner side of the modified cylinder (2) and the hot flow catalytic device (4) are both in close contact with the stirring and cleaning device (5). The atomizing pressurizer (6) is connected to the dispensing pipe (7), which is suspended from the top surface of the inner cavity of the modified cylinder (2) by a hanging ring (12).

2. The powder surface modification apparatus according to claim 1, wherein: The hot flow catalytic device (4) includes an inner air duct (41) and an outer air duct (42). The outer air duct (42) is flanged and connected to the inner air duct (41). The inner air duct (41) is located inside the outer air duct (42). The surface of the inner air duct (41) is covered with a filter layer (43). Both the inner air duct (41) and the outer air duct (42) are located inside the modified cylinder (2).

3. The powder surface modification apparatus according to claim 2, wherein: The hot air blower (3) is connected to the inner air duct (41) through the air duct, and the flange of the inner air duct (41) is connected to the top surface of the modified cylinder (2).

4. The powder surface modification apparatus according to claim 2, wherein: The inner air duct (41) has several air vents arranged in a ring array on its surface, and the outer air duct (42) has several air outlets arranged in a ring array on its surface, with filters installed inside the air outlets.

5. The powder surface modification apparatus according to claim 1, wherein: The stirring and cleaning device (5) includes a drive motor (51), a stirring fan (52), a side wall cleaning plate (53), and a cleaning brush (54). The drive motor (51) is fixedly installed on the bottom surface of the modified cylinder (2). The shaft of the drive motor (51) is connected to the stirring fan (52) and the cleaning brush (54). The stirring fan (52) has side wall cleaning plates (53) at both ends.

6. The powder surface modification apparatus according to claim 5, wherein: The sidewall cleaning plate (53) abuts against the inner side of the modified cylinder (2), and the cleaning brush (54) is in close contact with the surface of the hot flow catalytic device (4).

7. The powder surface modification apparatus of claim 1, wherein: The feed box (8) is connected to the modified cylinder (2) through the feed pipe. The feed pipe is equipped with a feeding pump (9). The bottom surface of the modified cylinder (2) is connected to the temporary storage box (11) through the discharge pipe. The discharge pipe is equipped with a discharge valve (10).

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