Silicon dioxide aerogel powder proportion adjusting mechanism and operation method

Abstract

The invention relates to the technical field of silica aerogel powder proportioning, in particular to a silica aerogel powder proportioning adjusting mechanism and an operation method, the silica aerogel powder proportioning adjusting mechanism comprises a circular plate, the position, close to the side, of the top of the circular plate is communicated with a solid raw material bin through a conveying pipe, and the middle position of the top of the circular plate is communicated with a liquid raw material bin through a conveying pipe. According to the automatic weighing device, air blowing is conducted on the inner wall after raw materials are output, adhesion of the raw materials is reduced, and therefore errors are reduced, the matching accuracy is improved, the discharging speed is controllable, a switcher is arranged in the automatic weighing bin and can be vertically communicated with a liquid raw material falling pipe and a discharging through pipe, and the automatic weighing device is convenient to use. Therefore, no matter whether the liquid raw material bin has a quantity-controlled releasing function or not, the quantity-controlled proportioning can be realized, and the automatic weighing bin is arranged to be of a structure with a wide upper part and a narrow lower part, is integrally contracted and is arranged above the mixing equipment, and no matter whether a solid raw material is fed or a liquid raw material is fed, only one feeding hole is formed.

Description

Technical Field

[0001] The present invention relates to the technical field of silica aerogel powder ratio, and specifically to a silica aerogel powder ratio adjustment mechanism and an operation method thereof. Background Art

[0002] The raw materials for the silica aerogel powder ratio include solids and liquids. After determining the weight according to the ratio, these raw materials need to be accurately added into the mixing equipment. For fully automated production, if a pipeline is directly connected to the mixing equipment for each raw material, it will appear very messy. Moreover, after the solid raw material is accurately metered and output from the silo and then output through the pipeline, there will inevitably be more adhesion to the pipe wall, and the amount actually entering the mixing equipment has an error. The required amount of liquid raw material is not particularly large, and it is difficult for the liquid to adhere to the inner wall of the pipeline without flowing down. The error value of the amount actually entering the mixing equipment can be ignored. However, there are situations of controllable and uncontrollable amounts in the liquid raw material silo, and their usage costs are different. How to make both raw material silos work is also a problem that needs to be actually considered. Summary of the Invention

[0003] The purpose of the present invention is to provide a silica aerogel powder ratio adjustment mechanism and an operation method thereof to solve the problems raised in the above background art, such as the mess caused by multiple feeding pipes at the mixing equipment, the feeding error caused by the adhesion of solid raw materials to the pipe wall, and the influence of whether the liquid raw material silo has a metering function on the addition.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A silica aerogel powder ratio adjustment mechanism includes a circular plate. The position near the side of the top of the circular plate is connected to a solid raw material silo through a conveying pipe. The middle position of the top of the circular plate is connected to a liquid raw material silo through a conveying pipe. The side of the circular plate is provided with solid raw material dropping openings corresponding to the number of solid raw material silos. A liquid raw material dropping pipe connected to the conveying pipe is arranged corresponding to the liquid raw material silo at the middle position of the circular plate. A blowing device is fixedly installed on the top of the circular plate. There is a perforation through the conveying pipe on the blowing device, and the conveying pipe passes through the perforation position. The circular plate is provided with air holes communicating with the blowing device outside the solid raw material dropping openings and the liquid raw material dropping pipe. An automatic weighing bin is integrally connected below the circular plate. A blanking through pipe is communicated at the bottom of the automatic weighing bin. A switch is arranged inside the automatic weighing bin, and the switch corresponds to the position of the liquid raw material dropping pipe. A first motor is fixedly installed outside the automatic weighing bin, and the rotating shaft of the first motor passes through the automatic weighing bin and is fixedly connected to the switch. A second motor is fixedly installed outside the blanking through pipe, and a valve is arranged inside the blanking through pipe. The rotating shaft of the second motor is fixedly connected to the valve.

[0006] As a further description of the above technical solution:

[0007] The upper part of the automatic weighing bin is a horizontal circular cavity, and the lower part of the automatic weighing bin is a vertical semi-circular cavity. A vertical rectangular through cavity is integrally connected above the semi-circular cavity, and the rectangular through cavity and the circular through cavity are connected through an obliquely shrinking cavity.

[0008] As a further description of the above technical solution:

[0009] The height of the switch is less than the diameter length of the semi-circular through cavity. The middle part of the switch is connected to the rotating shaft of the first motor, and the rotating shaft of the first motor is located at the center of the semi-circular cavity.

[0010] As a further description of the above technical solution:

[0011] The switch includes a contraction pipe, a flared mouth, a limiting ring, a weight sealing cover and an outlet. One end of the contraction pipe is integrally connected to the flared mouth, and the other end of the contraction pipe is a vertical pipe structure. A limiting ring is formed by a protrusion on the outer side of the vertical pipe. The weight sealing cover is hooked and sleeved at the position of the limiting ring, and an outlet is opened on the side wall of the weight sealing cover. The bottom of the outlet is flush with the cover surface of the weight sealing cover.

[0012] As a further description of the above technical solution:

[0013] The opening diameter length of the flared mouth is 1.5 - 2 times the diameter length of the liquid raw material falling pipe.

[0014] As a further description of the above technical solution:

[0015] The cover surface diameter length of the weight sealing cover is less than the width of the blanking through pipe.

[0016] As a further description of the above technical solution:

[0017] The outlet is opened along the direction of the rotating shaft of the second motor.

[0018] As a further description of the above technical solution:

[0019] A method for operating the proportioning of silica aerogel powder,

[0020] The operation steps are as follows,

[0021] S1. Start the first motor, rotate the switch upside down, and make the weight sealing cover face up to seal the upward port of the switch;

[0022] S2. Start the second motor, and the valve closes the blanking through pipe;

[0023] S3. Close the valve of the liquid raw material bin, and sequentially open the valves of the solid raw material bins. Each time a valve of a solid raw material bin is opened, the raw material in the solid raw material bin falls into the automatic weighing bin. When the weight reaches the set feeding value, stop the feeding, and then open the valve of the next solid raw material bin, and so on, until all the solid raw materials are input and weighed. Then start the second motor, open the valve, and the solid raw materials in the automatic weighing bin fall and are output. By controlling the opening amplitude of the control valve, control the amount and speed of the falling material;

[0024] S4. Start the air blowing device to blow out the solid raw materials attached to the inner walls of the automatic weighing bin and the feeding pipe;

[0025] S5. If the liquid raw material bin has a built-in metering function, start the first motor, rotate the outlet of the switcher downward, connect the bell mouth with the liquid raw material falling pipe, open the valve of the liquid raw material bin, and open the valve. The liquid raw material directly falls from the position of the feeding pipe through the switcher. If the liquid raw material bin does not have a metering function, keep the switcher rotated upside down, let the counterweight sealing cover face up to seal the upper port of the switcher, close the valve, and the liquid falls into the automatic weighing bin for weighing and metering, and then open the valve for output;

[0026] S6. Finally, start the air blowing device again to blow dry the inner walls of the automatic weighing bin and the feeding pipe.

[0027] Compared with the prior art, the present invention provides a silica aerogel powder ratio adjustment mechanism and an operation method, which have the following beneficial effects:

[0028] 1. In the present invention, an automatic weighing bin is provided. The solid raw materials of the silica aerogel powder are directly input into the automatic weighing bin for weighing and then output. The automatic weighing bin is directly arranged above the mixing equipment. After the raw materials are output, air is blown into the inner wall to reduce the adhesion of the raw materials, thereby reducing errors, improving the accuracy of the ratio, and the falling speed of the materials is controllable;

[0029] 2. In the present invention, a switcher is arranged in the automatic weighing bin. The switcher can be vertically connected to the liquid raw material falling pipe and the feeding pipe. In this way, regardless of whether the liquid raw material bin has a metering and discharging function, metering and ratio adjustment can be achieved. Moreover, the automatic weighing bin is of a structure that is wider at the top and narrower at the bottom, and is overall in a contracted shape. Above the mixing equipment, there is only one feeding port whether it is for solid raw material feeding or liquid raw material feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic cross-sectional structure diagram of the automatic weighing bin of the present invention;

[0031] Figure 2 It is a schematic position structure diagram of the first motor and the second motor of the present invention;

[0032] Figure 3 Schematic cross-sectional structure diagram of the switch of the present invention;

[0033] Figure 4 Schematic perspective structure diagram one of the present invention;

[0034] Figure 5 Schematic perspective structure diagram two of the present invention.

[0035] Legend:

[0036] 1. Circular plate; 2. Delivery pipe; 3. Solid raw material bin; 4. Liquid raw material bin; 5. Solid raw material falling opening; 6. Liquid raw material falling pipe; 7. Blowing device; 8. Air holes; 9. Automatic weighing bin; 10. Feeding through pipe; 11. Switch; 1101. Shrinkage pipe; 1102. Flared mouth; 1103. Limit ring; 1104. Weighted sealing cover; 1105. Outlet; 12. First motor; 13. Second motor; 14. Valve. Specific implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0038] Embodiment:

[0039] Please refer to Figures 1 - 5 , the present invention provides a silica aerogel powder ratio adjustment mechanism, including a circular plate 1. The position near the side of the top of the circular plate 1 is connected to the solid raw material bin 3 through a delivery pipe 2. The middle position of the top of the circular plate 1 is connected to the liquid raw material bin 4 through a delivery pipe 2. Solid raw material falling openings 5 are opened on the side of the circular plate 1 corresponding to the number of solid raw material bins 3. A liquid raw material falling pipe 6 connecting the delivery pipe 2 is arranged at the middle position of the circular plate 1 corresponding to the liquid raw material bin 4. A blowing device 7 is fixedly installed on the top of the circular plate 1. The blowing device 7 is provided with a perforation through the delivery pipe 2, and the delivery pipe 2 passes through the perforation position. Air holes 8 connecting the blowing device 7 are opened on the outside of the circular plate 1 at the positions of the solid raw material falling openings 5 and the liquid raw material falling pipe 6. An automatic weighing bin 9 is integrally connected below the circular plate 1. A feeding through pipe 10 is connected to the bottom of the automatic weighing bin 9. A switch 11 is arranged inside the automatic weighing bin 9, and the switch 11 corresponds to the position of the liquid raw material falling pipe 6. A first motor 12 is fixedly installed outside the automatic weighing bin 9. The rotating shaft of the first motor 12 passes through the automatic weighing bin 9 and is fixedly connected to the switch 11. A second motor 13 is fixedly installed outside the feeding through pipe 10. A valve 14 is arranged inside the feeding through pipe 10. The rotating shaft of the second motor 13 is fixedly connected to the valve 14.

[0040] Specifically, as Figure 1 shown, the upper part of the automatic weighing bin 9 is a horizontal circular cavity, and the lower part is a vertical semi-circular cavity. Above the semi-circular cavity, there is a vertically integrated rectangular through cavity, which is connected to the circular through cavity through an obliquely shrinking cavity. The structure of the automatic weighing bin 9 is wider at the top and narrower at the bottom. The top can accommodate and connect multiple conveying pipes 2, with a large wind inlet area. The bottom is connected to the blanking through pipe 10 to form a discharge port, which has the function of guiding the flow and dropping, and there is no dead angle for staying materials.

[0041] Specifically, the height of the switch 11 is less than the diameter length of the semi-circular through cavity. The middle part of the switch 11 is connected to the rotating shaft of the first motor 12, and the rotating shaft of the first motor 12 is located at the center of the semi-circular cavity, and the switch 11 rotates smoothly without obstruction.

[0042] Specifically, as Figure 3 shown, the switch 11 includes a contraction pipe 1101, a bell mouth 1102, a limit ring 1103, a weight sealing cover 1104, and an outlet 1105. One end of the contraction pipe 1101 is integrally connected to the bell mouth 1102, and the other end of the contraction pipe 1101 is a vertical pipe structure. A limit ring 1103 is formed by a protrusion on the outer side of the vertical pipe. The weight sealing cover 1104 is hooked and sleeved at the position of the limit ring 1103. An outlet 1105 is opened on the side wall of the weight sealing cover 1104, and the bottom of the outlet 1105 is flush with the cover surface of the weight sealing cover 1104. The contraction pipe 1101 and the bell mouth 1102 have the function of concentrating the flow and narrowing, avoiding liquid from contaminating the inner wall of the automatic weighing bin 9. With the weight sealing cover 1104 on top, the outlet 1105 is hidden, and the weight sealing cover 1104 covers and seals the port of the switch 11. With the weight sealing cover 1104 at the bottom, the outlet 1105 is exposed, and the liquid flows out from here.

[0043] Specifically, the opening diameter length of the bell mouth 1102 is 1.5 - 2 times the diameter length of the liquid raw material dropping pipe 6, avoiding liquid from flowing outwards from the position of the bell mouth 1102.

[0044] Specifically, the diameter length of the cover surface of the weight sealing cover 1104 is less than the width of the blanking through pipe 10, and the outlet 1105 is opened along the direction of the rotating shaft of the second motor 13, and the place where the liquid flows out is relatively open, and the dropping is smooth.

[0045] Working principle:

[0046] Place the solid raw materials in the silica aerogel powder raw materials into the solid raw material bin 3, and place the liquid raw materials in the liquid raw material bin 4. Both the solid raw material bin 3 and the liquid raw material bin 4 are equipped with valves. The mixing equipment is directly placed below the feeding pipe 10. Both the solid raw material bin 3 and the liquid raw material bin 4 can be placed externally at a relatively far position, and the raw materials are pumped from a distance. The weighing sensors of the automatic weighing bin 9 should be connected to the valve signals of the solid raw material bin 3 and the liquid raw material bin 4 to achieve timely opening and closing of the valves;

[0047] Calculate the required added weight of each raw material;

[0048] First, the solid raw materials are added. When adding the solid raw materials, the valve 14 is in the closed state, and the weight sealing cover 1104 of the switch 11 is in the inverted upward state. Because the weight sealing cover 1104 has its own weight, it will automatically fall and seal the upward port of the contraction pipe 1101. In this way, the solid raw materials falling from the position of the solid raw material falling port 5 will not enter the interior of the switch 11. Even if they enter the inner side of the contraction pipe 1101 from the bell mouth 1102 of the switch 11, they will automatically fall out again during discharging. At the same time, start the first motor 12, which can also throw out the solid raw materials attached to the inner wall of the switch 11. Used in conjunction with the blowing function of the air blowing device 7, the effect is better. One by one, the raw materials in the solid raw material bin 3 are transported into the automatic weighing bin 9. When the added weight each time reaches the set value, the valve of the solid raw material bin 3 is closed and the feeding stops. After all feeding stops, the total weight of the raw materials in the automatic weighing bin 9 is determined. At this time, open the valve 14 to start feeding. After feeding is completed, the air blowing device 7 works to blow off the raw materials attached to the inner walls of the automatic weighing bin 9 and the feeding pipe 10 and output them, improving the accuracy of the mixing ratio and reducing the error value;

[0049] Then, the liquid raw materials are added. If the liquid raw material bin 4 itself has the function of controlling the flow rate, then the first motor 12 rotates the bell mouth 1102 of the switch 11 upward so that the bell mouth 1102 is aligned with the liquid raw material falling pipe 6. The weight sealing cover 1104 automatically falls, and the outlet 1105 is exposed. The liquid raw materials directly enter the bell mouth 1102 through the liquid raw material falling pipe 6, then fall along the contraction pipe 1101 to the weight sealing cover 1104, and enter the feeding pipe 10 from the outlet 1105 and then fall. Because the switch 11 has the function of concentrating the flow and narrowing, the inner wall of the automatic weighing bin 9 is basically not contaminated during the liquid output process. If the liquid raw material bin 4 itself does not have the function of controlling the flow rate, then close the valve 14, the weight sealing cover 1104 of the switch 11 faces upward, and the liquid is weighed in the automatic weighing bin 9 and then discharged. In this way, the inner wall of the automatic weighing bin 9 is contaminated by the liquid, and it is necessary to start the air blowing device 7 to dry the inner walls of the automatic weighing bin 9 and the feeding pipe 10 after discharging.

[0050] The embodiment of the present application also discloses a method for operating the proportioning of silica aerogel powder, adopting the following technical solution:

[0051] A method for operating the proportioning of silica aerogel powder,

[0052] The operation steps are as follows.

[0053] S1. Start the first motor 12, rotate the switch 11 upside down, and make the counterweight sealing cover 1104 face upward to seal the upward port of the switch 11.

[0054] S2. Start the second motor 13, and the valve 14 closes the blanking pipe 10.

[0055] S3. Close the valve of the liquid raw material bin 4, and sequentially open the valves of the solid raw material bins 3. Each time a valve of a solid raw material bin 3 is opened, the raw material in the solid raw material bin 3 falls into the automatic weighing bin 9. When the weight reaches the set feeding value, stop the feeding, and then open the valve of the next solid raw material bin 3, and so on, until all the solid raw materials are input and weighed. Then start the second motor 13, open the valve 14, and the solid raw material in the automatic weighing bin 9 falls and outputs. By controlling the opening amplitude of the control valve 14, control the amount and speed of the blanking.

[0056] S4. Start the air blowing device 7 to blow out the solid raw materials attached to the inner walls of the automatic weighing bin 9 and the blanking pipe 10.

[0057] S5. If the liquid raw material bin 4 has a self-control function, start the first motor 12, rotate the outlet 1105 of the switch 11 downward, connect the bell mouth 1102 with the liquid raw material falling pipe 6, open the valve of the liquid raw material bin 4, and open the valve 14. The liquid raw material directly falls from the position of the blanking pipe 10 through the switch 11. If the liquid raw material bin 4 does not have a control function, keep the switch 11 rotated upside down, make the counterweight sealing cover 1104 face upward to seal the upward port of the switch 11, close the valve 14, and after the liquid falls into the automatic weighing bin 9 for weighing and control, open the valve 14 for output.

[0058] S6. Finally, start the air blowing device 7 again to blow dry the inner walls of the automatic weighing bin 9 and the blanking pipe 10.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silica aerogel powder ratio adjustment mechanism, including a circular plate (1), characterized in that: The top of the circular plate (1) near the side is connected to the solid raw material bin (3) through a conveying pipe (2). The middle position of the top of the circular plate (1) is connected to the liquid raw material bin (4) through a conveying pipe (2). Solid raw material dropping openings (5) are provided on the side of the circular plate (1) corresponding to the number of solid raw material bins (3). A liquid raw material dropping pipe (6) connected to the conveying pipe (2) is arranged at the middle position of the circular plate (1) corresponding to the liquid raw material bin (4). A blowing device (7) is fixedly installed on the top of the circular plate (1). The blowing device (7) is provided with a perforation through the conveying pipe (2), and the conveying pipe (2) passes through from the perforation position. The circular plate (1) is provided with air holes (8) communicating with the blowing device (7) outside the solid raw material dropping openings (5) and the liquid raw material dropping pipe (6). An automatic weighing bin (9) is integrally connected below the circular plate (1). A blanking through pipe (10) is communicated with the bottom of the automatic weighing bin (9). A switch (11) is arranged inside the automatic weighing bin (9), and the switch (11) corresponds to the position of the liquid raw material dropping pipe 6. A first motor (12) is fixedly installed outside the automatic weighing bin (9). The rotating shaft of the first motor (12) passes through the automatic weighing bin (9) and is fixedly connected to the switch (11). A second motor (13) is fixedly installed outside the blanking through pipe (10). A valve (14) is arranged inside the blanking through pipe (10). The rotating shaft of the second motor (13) is fixedly connected to the valve (14).

2. The silica aerogel powder ratio adjustment mechanism according to claim 1, characterized in that: The upper part of the automatic weighing bin (9) is a horizontal circular cavity, and the lower part of the automatic weighing bin (9) is a vertical semi-circular cavity. A vertical rectangular through cavity is integrally connected above the semi-circular cavity, and the rectangular through cavity and the circular through cavity are communicated through an obliquely shrinking cavity.

3. The silica aerogel powder ratio adjustment mechanism according to claim 2, characterized in that: The height of the switch (11) is less than the diameter length of the semi-circular through cavity. The middle part of the switch (11) is connected to the rotating shaft of the first motor (12), and the rotating shaft of the first motor (12) is located at the center of the semi-circular cavity.

4. The silica aerogel powder ratio adjustment mechanism according to claim 1, characterized in that: The switch (11) includes a contraction pipe (1101), a flared mouth (1102), a limiting ring (1103), a weight sealing cover (1104) and an outlet (1105). One end of the contraction pipe (1101) is integrally connected to the flared mouth (1102). The other end of the contraction pipe (1101) is a vertical pipe structure, and a limiting ring (1103) is formed by a protrusion on the outside of the vertical pipe. The weight sealing cover (1104) is hooked and sleeved at the position of the limiting ring (1103). An outlet (1105) is provided on the side wall of the weight sealing cover (1104), and the bottom of the outlet (1105) is flush with the cover surface of the weight sealing cover (1104).

5. A silica aerogel powder ratio adjustment mechanism according to claim 4, characterized in that: The opening diameter length of the flared mouth (1102) is 1.5 - 2 times the diameter length of the liquid raw material dropping pipe (6).

6. The silica aerogel powder ratio adjustment mechanism according to claim 4, characterized in that: The diameter length of the cover surface of the weight sealing cover (1104) is less than the width of the blanking through pipe (10).

7. A silica aerogel powder ratio adjustment mechanism according to claim 4, characterized in that: The outlet (1105) is opened along the direction of the rotating shaft of the second motor (13).

8. According to the method for operating the proportioning of silica aerogel powder as described in claim 1, wherein: The operation steps are as follows: S1. Start the first motor (12), rotate the switch (11) upside down, and make the counterweight sealing cover (1104) face upward to seal the upward port of the switch (11). S2. Start the second motor (13), and the valve (14) closes the blanking pipe (10). S3. Close the valve of the liquid raw material bin (4), and sequentially open the valves of the solid raw material bin (3). For each valve of the solid raw material bin (3) opened, the raw materials in the solid raw material bin (3) fall into the automatic weighing bin (9). When the weight reaches the set feeding value, stop the feeding. Then open the valve of the next solid raw material bin (3), and so on, until all the solid raw materials are weighed and input. Start the second motor (13), open the valve (14), and the solid raw materials in the automatic weighing bin (9) fall and are output. By controlling the opening amplitude of the control valve (14), control the amount and speed of the blanking. S4. Start the air blowing device (7) to blow out the solid raw materials adhering to the inner walls of the automatic weighing bin (9) and the blanking pipe (10). S5. If the liquid raw material bin (4) has its own metering function, start the first motor (12), rotate the outlet (1105) of the switch (11) downward, connect the bell mouth (1102) with the liquid raw material falling pipe (6), open the valve of the liquid raw material bin (4), and open the valve (14). The liquid raw material directly falls from the position of the blanking pipe (10) through the switch (11). If the liquid raw material bin (4) does not have a metering function, keep the switch (11) rotated upside down, make the counterweight sealing cover (1104) face upward to seal the upward port of the switch (11), close the valve (14), let the liquid fall into the automatic weighing bin (9) for weighing and metering, and then open the valve (14) for output. S6. Finally, start the air blowing device (7) again to blow and dry the inner walls of the automatic weighing bin (9) and the blanking pipe (10).

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