A dispersion device for surface modification of silicon micro powder
By introducing an anti-backflow mechanism into the silicon micropowder surface modification device, the problem of liquid backflow after hot gas cooling is solved, achieving stability and automated control of the production process, and ensuring the stability and consistency of the silicon micropowder modification process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HAITIAN POWDER MATERIALS CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-06-16
AI Technical Summary
Existing nanosphere silicon powder surface modification devices cause hot air discharged during heating to reflux into liquid after cooling, affecting production stability.
A dispersion device for surface modification of silicon micropowder with an anti-backflow mechanism was designed. The device uses a sloping cooling box and a one-way valve to prevent water vapor backflow. Combined with an electric push rod and push-pull plate system, the liquid is guided to filter and collected into a water storage tank to ensure the stability of the heating process.
The anti-backflow mechanism prevents liquid backflow, enabling stable equipment operation and automated control, and ensuring production stability and consistency.
Smart Images
Figure CN224358431U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of materials science and engineering technology, and more specifically to a dispersion device for surface modification of silicon micropowder. Background Technology
[0002] Silica powder, primarily composed of silicon dioxide, possesses excellent properties such as non-toxicity, low cost, high insulation, high thermal conductivity, high thermal stability, low coefficient of thermal expansion, low dielectric constant, acid and alkali resistance, and wear resistance. These properties make it widely used in electronics, electrical appliances, chemicals, and materials science. Examples include its use in the packaging of semiconductor integrated circuits and electronic devices, the production of ordinary alkali-free glass fiber and glass fiber for the electronics industry, and as a filler in silicone rubber and plastics. With technological advancements, the performance requirements for materials are becoming increasingly stringent. In some high-end applications, such as high-frequency copper-clad laminates, high-end coatings, high-performance adhesives, and insulating materials, silica powder needs to possess more specific functions, such as better dispersibility and stronger bonding with organic polymers, to meet the demands for improved product performance.
[0003] The patent document CN215162301U discloses a surface modification device for nano-spherical silicon powder. The device uses gas to fluidize the nano-spherical silicon powder, which disperses the powder without agglomeration and allows the agent to fully contact the powder, thereby improving the modification effect and increasing the activation index of the nano-spherical silicon powder. The device also uses high-temperature gas to heat the nano-spherical silicon powder, which improves the uniformity and efficiency of heating and increases the energy utilization rate.
[0004] However, the hot gas emitted during heating in this nano-spherical silicon powder surface modification device will form liquid backflow after cooling, thus affecting production stability. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a dispersion device for surface modification of silicon micropowder to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a dispersion device for surface modification of silicon micropowder, comprising a mixing tank and a support frame. The mixing tank is fixedly installed on the support frame. A tank cover is connected to the top of the mixing tank. Four spiral buckles are fixedly installed in a circular pattern on the top of the mixing tank. The tank cover and the four corners of the mixing tank are provided with slots. The spiral buckles connect the tank cover and the mixing tank through the slots. A motor is fixedly installed on the top of the tank cover. A transmission rod is fixedly installed at the output end of the motor. A groove for placing the transmission rod is opened at the center of the tank cover. A blade is fixedly installed at the bottom of the transmission rod. A control system is fixedly installed on the front of the mixing tank. The control system includes a touch screen, a PLC controller, and a temperature sensor, etc. A filter device and a dispersion mechanism are provided at the bottom of the mixing tank.
[0007] The filtration device includes a baffle, a filter cloth, and a storage tank. The storage tank is located on the inner wall of the bottom of the mixing tank. The baffle is movably connected to the inner wall of the storage tank. The filter cloth is fixedly installed at the bottom of the mixing tank.
[0008] The dispersing mechanism includes a high-pressure spray gun, which is fixedly installed on the outer wall of the bottom of the mixing tank, and the output end of the high-pressure spray gun is connected to a heating device.
[0009] Furthermore, the heating device includes a heating chamber, a chamber door, a heating plate, and a recovery chamber. The heating chamber is fixedly installed on a support frame, the chamber door is hinged to the front of the heating chamber, the heating plate is fixedly installed on the inner wall of the heating chamber, and the recovery chamber is installed on the heating plate.
[0010] Furthermore, the top of the heating chamber is equipped with an anti-backflow mechanism, which includes a ramp cooling box, an electric push rod, a push-pull plate, a one-way valve, a filter screen, a steam riser pipe, a drain pipe, and a water storage tank. The ramp cooling box is fixedly installed on the top of the heating chamber, the electric push rod is fixedly installed on the inside left side of the ramp cooling box, the push-pull plate is fixedly installed on the output end of the electric push rod, the steam riser pipe is fixedly installed inside the heating chamber, the one-way valve is fixedly installed at the top of the steam riser pipe, the filter screen is connected to the inner wall of the ramp cooling box, the drain pipe is fixedly connected to the right side of the ramp cooling box, and the water storage tank is fixedly connected to the bottom of the drain pipe.
[0011] Furthermore, a through slot for placing an electric push rod is provided on the left side of the slope cooling box. The electric push rod is threadedly connected to the left side of the slope cooling box by a bottom bolt. A cooling plate is fixedly connected to the top of the inner wall of the slope cooling box.
[0012] Furthermore, an electric telescopic plate is slidably connected inside the push-pull plate, and a slidable water-pushing plate is fixedly connected to the bottom of the electric telescopic plate.
[0013] Furthermore, the steam riser connects the interior of the heating chamber to the interior of the ramp cooling box, and the one-way valve only allows gas to flow from the interior of the heating chamber to the interior of the ramp cooling box.
[0014] Furthermore, the filter screen is threadedly connected to the inner wall of the ramp cooling box by bolts.
[0015] Furthermore, a groove is provided on the back of the heating chamber for connecting the output end of the high-pressure spray gun, and the groove runs through the heating chamber and the recovery chamber.
[0016] The technical effects and advantages of this utility model are as follows:
[0017] This invention features an anti-backflow mechanism, which facilitates the generation of water vapor during heating, which is then cooled into liquid. An electric telescopic plate connects to a sliding water-pushing plate that moves up and down within the push-pull plate. In conjunction with an electric push rod, the push-pull plate can move back and forth, allowing the accumulated liquid to enter the filter port for filtration, then flow into the drain pipe and finally into the water storage tank, thus preventing the accumulation of distilled water and backflow.
[0018] This invention, by incorporating a control system, allows operators to control equipment operating parameters, precisely set and adjust parameters, achieve automated production, and ensure production stability and consistency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is an exploded view of the overall structure of this utility model.
[0021] Figure 3 This is a schematic diagram of the filter cloth structure of this utility model.
[0022] Figure 4 This is a schematic diagram of the right-side structure of this utility model.
[0023] Figure 5 This is a schematic diagram of the overall structure of the heating chamber of this utility model.
[0024] Figure 6 This is a top view of the heating chamber structure of this utility model.
[0025] Figure 7 This is a schematic diagram of the overall structure of the heating chamber of this utility model.
[0026] Figure 8 This is a schematic diagram of the electric actuator structure of this utility model.
[0027] Figure 9 For the present utility model Figure 6 Enlarged structural diagram at point A in the middle.
[0028] Figure 10 For the present utility model Figure 5 Enlarged structural diagram at point B.
[0029] Figure 11 For the present utility model Figure 2 Enlarged structural diagram at point C.
[0030] The attached diagram is labeled as follows: 1. Support frame; 2. Mixing tank; 201. Tank lid; 202. Spiral buckle; 203. Motor; 204. Transmission rod; 205. Blade; 3. Dispersion mechanism; 4. Heating chamber; 401. Chamber door; 402. Heating plate; 403. Recovery chamber; 404. Inclined cooling box; 405. Cooling plate; 406. Electric push rod; 407. Push-pull plate; 408. Electric telescopic plate; 409. Sliding push plate; 410. One-way valve; 411. Filter screen; 412. Steam riser pipe; 413. Drain pipe; 414. Water storage tank; 5. Baffle; 501. Filter cloth; 502. Collection trough; 6. High-pressure spray gun; 7. Control system. Detailed Implementation
[0031] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The dispersion device for surface modification of silicon micropowder involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] Reference Figure 1 - Figure 11 This utility model provides a dispersion device for surface modification of silicon micropowder, including a mixing tank 2 and a support frame 1. The mixing tank 2 is fixedly installed on the support frame 1. A tank cover 201 is connected to the top of the mixing tank 2. Four spiral buckles 202 are fixedly installed in a circular pattern on the top of the mixing tank 2. The four corners of the tank cover 201 and the mixing tank 2 are provided with slots. The spiral buckles 202 connect the tank cover 201 and the mixing tank 2 through the slots. A motor 203 is fixedly installed on the top of the tank cover 201. A transmission rod 204 is fixedly installed at the output end of the motor 203. A groove for placing the transmission rod 204 is opened at the center of the tank cover 201. A blade 205 is fixedly installed at the bottom of the transmission rod 204. A control system 7 is fixedly installed on the front of the mixing tank 2. The control system 7 includes a touch screen, a PLC controller and a temperature sensor, etc. A filter device and a dispersion mechanism 3 are provided at the bottom of the mixing tank 2.
[0033] The filtration device includes a baffle 5, a filter cloth 501, and a collection tank 502. The collection tank 502 is opened on the inner wall of the bottom of the mixing tank 2. The baffle 5 is movably connected to the inner wall of the collection tank 502. The filter cloth 501 is fixedly installed on the bottom of the mixing tank 2.
[0034] The dispersing mechanism 3 includes a high-pressure spray gun 6, which is fixedly installed on the outer wall of the bottom of the mixing tank 2, and the output end of the high-pressure spray gun 6 is connected to a heating device.
[0035] The heating device includes a heating chamber 4, a chamber door 401, a heating plate 402, and a recovery chamber 403. The heating chamber 4 is fixedly installed on the support frame 1. The chamber door 401 is hinged to the front of the heating chamber 4. The heating plate 402 is fixedly installed on the inner wall of the heating chamber 4. The recovery chamber 403 is installed on the heating plate 402.
[0036] The top of the heating chamber 4 is equipped with an anti-backflow mechanism, which includes a ramp cooling box 404, an electric push rod 406, a push-pull plate 407, a one-way valve 410, a filter screen 411, a steam riser pipe 412, a drain pipe 413, and a water storage tank 414. The ramp cooling box 404 is fixedly installed on the top of the heating chamber 4. The electric push rod 406 is fixedly installed on the left side inside the ramp cooling box 404. The push-pull plate 407 is fixedly installed at the output end of the electric push rod 406. The steam riser pipe 412 is fixedly installed inside the heating chamber 4. The one-way valve 410 is fixedly installed at the top of the steam riser pipe 412. The filter screen 411 is connected to the inner wall of the ramp cooling box 404. The drain pipe 413 is fixedly connected to the right side of the ramp cooling box 404. The water storage tank 414 is fixedly connected to the bottom of the drain pipe 413.
[0037] The left side of the ramp cooling box 404 has a through slot for placing the electric push rod 406. The electric push rod 406 is threadedly connected to the left side of the ramp cooling box 404 by a bottom bolt. A cooling plate 405 is fixedly connected to the top of the inner wall of the ramp cooling box 404.
[0038] An electric telescopic plate 408 is slidably connected inside the push-pull plate 407, and a slidable water-pushing plate 409 is fixedly connected to the bottom of the electric telescopic plate 408.
[0039] The steam riser pipe 412 connects the interior of the heating chamber 4 with the interior of the ramp cooling box 404, and the one-way valve 410 only allows gas to flow from the interior of the heating chamber 4 to the interior of the ramp cooling box 404.
[0040] The filter screen 411 is threadedly connected to the inner wall of the ramp cooling box 404 by bolts.
[0041] The back of the heating chamber 4 has a groove for connecting the output end of the high-pressure spray gun 6, which runs through the heating chamber 4 and the recovery chamber 403.
[0042] The working principle of this utility model is as follows: First, the lid 201 is opened using the spiral buckle 202, and silicon micropowder is added to the mixing tank 2. Simultaneously, an appropriate amount of modifier is added. The motor 203 is started, causing the transmission rod 204 to operate, which in turn drives the blades 205 to rotate, ensuring thorough mixing and contact between the silicon micropowder and the modifier. The control system 7 retracts the baffle 5 into the receiving tank 502, allowing the mixture to pass through the filter cloth 501 and enter the dispersion mechanism 3. Then, the dispersion mechanism 3 is activated, and the mixture is sprayed into a mist under high pressure using a high-pressure spray gun 6, breaking up the agglomeration of silicon micropowder particles and ensuring uniform distribution in the solution. The mixture is then forced into the recovery chamber 403 by the high-pressure spray gun 6. Next, the heating device is activated, and the control system 7 raises the temperature of the heating chamber 4 to a certain value according to process requirements, accelerating the chemical reaction. The modifier reacts better with the active groups such as hydroxyl groups on the surface of silicon micropowder to form stable chemical bonds. At the same time, the water vapor generated during heating will come into contact with the cooling plate 405 through the water vapor riser pipe 412, so that the water vapor is quickly cooled and forms liquid that accumulates in the inclined cooling box 404. The liquid is prevented from flowing back into the heating chamber 4 by the one-way valve 410. The electric push rod 406, the push-pull plate 407, the electric telescopic plate 408 and the sliding water push plate 409 are connected and move together. The push and pull of the electric push rod 406 pushes the liquid towards the filter screen 411. The filter screen 411 filters the liquid and enters the drain pipe 413 and flows into the water storage tank 414. In this way, the liquid will not flow back into the heating chamber 4. During the reaction, the control system 7 monitors and controls parameters such as temperature and stirring speed in real time to ensure the stability of reaction conditions.
[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0044] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0045] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dispersion device for surface modification of silicon micropowder, comprising a stirring tank (2) and a support frame (1), characterized in that: The mixing tank (2) is fixedly installed on the support frame (1). The top of the mixing tank (2) is connected to the lid (201). Four spiral buckles (202) are fixedly installed on the top of the mixing tank (2) in a circular pattern. The lid (201) and the four corners of the mixing tank (2) are provided with slots. The spiral buckles (202) connect the lid (201) and the mixing tank (2) through the slots. The top of the lid (201) is fixedly installed with a motor (203). The output end of the motor (203) is fixedly installed with a transmission rod (204). The center of the lid (201) is provided with a slot for placing the transmission rod (204). The bottom of the transmission rod (204) is fixedly installed with blades (205). The front of the mixing tank (2) is fixedly installed with a control system (7). The control system (7) includes a touch screen, a PLC controller and a temperature sensor. The bottom of the mixing tank (2) is provided with a filter device and a dispersion mechanism (3). The filtration device includes a baffle (5), a filter cloth (501) and a storage tank (502). The storage tank (502) is opened on the inner wall of the bottom of the mixing tank (2). The baffle (5) is movably connected to the inner wall of the storage tank (502). The filter cloth (501) is fixedly installed on the bottom of the mixing tank (2). The dispersion mechanism (3) includes a high-pressure spray gun (6), which is fixedly installed on the outer wall of the bottom of the mixing tank (2), and the output end of the high-pressure spray gun (6) is connected to a heating device.
2. The dispersion device for surface modification of silicon micropowder according to claim 1, characterized in that: The heating device includes a heating chamber (4), a chamber door (401), a heating plate (402), and a recovery chamber (403). The heating chamber (4) is fixedly installed on the support frame (1). The chamber door (401) is hinged to the front of the heating chamber (4). The heating plate (402) is fixedly installed on the inner wall of the heating chamber (4). The recovery chamber (403) is installed on the heating plate (402).
3. The dispersion device for surface modification of silicon micropowder according to claim 2, characterized in that: The top of the heating chamber (4) is equipped with an anti-backflow mechanism, which includes a ramp cooling box (404), an electric push rod (406), a push-pull plate (407), a one-way valve (410), a filter screen (411), a steam riser pipe (412), a drain pipe (413), and a water storage tank (414). The ramp cooling box (404) is fixedly installed on the top of the heating chamber (4), and the electric push rod (406) is fixedly installed on the left side inside the ramp cooling box (404). The push-pull plate (407) is fixedly installed at the output end of the electric push rod (406), the steam riser pipe (412) is fixedly installed inside the heating chamber (4), the one-way valve (410) is fixedly installed at the top of the steam riser pipe (412), the filter screen (411) is connected to the inner wall of the inclined cooling box (404), the drain pipe (413) is fixedly connected to the right side of the inclined cooling box (404), and the water storage tank (414) is fixedly connected to the bottom of the drain pipe (413).
4. The dispersion device for surface modification of silicon micropowder according to claim 3, characterized in that: The left side of the slope cooling box (404) has a through slot for placing an electric push rod (406). The electric push rod (406) is threadedly connected to the left side of the slope cooling box (404) by a bottom bolt. A cooling plate (405) is fixedly connected to the top of the inner wall of the slope cooling box (404).
5. The dispersion device for surface modification of silicon micropowder according to claim 3, characterized in that: An electric telescopic plate (408) is slidably connected inside the push-pull plate (407), and a slidable water-pushing plate (409) is fixedly connected to the bottom of the electric telescopic plate (408).
6. The dispersion device for surface modification of silicon micropowder according to claim 3, characterized in that: The steam riser pipe (412) connects the interior of the heating chamber (4) with the interior of the ramp cooling box (404), and the one-way valve (410) only allows gas to flow from the interior of the heating chamber (4) to the interior of the ramp cooling box (404).
7. The dispersion device for surface modification of silicon micropowder according to claim 3, characterized in that: The filter screen (411) is threadedly connected to the inner wall of the ramp cooling box (404) by bolts.