Powder material feeding device
By using a closed-loop powder material feeding device, which utilizes concentric tubes and nozzles to achieve closed feeding and internal wall rinsing, the problems of dust and material loss are solved, thus protecting the environment and health and ensuring product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU BETTER DENUO PHARM CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-14
AI Technical Summary
Existing methods for feeding powdered materials can easily lead to dust pollution, contaminating the clean environment and increasing health risks for operators, while also resulting in significant material loss.
The device employs a closed-loop powder material feeding system. The liquid conveying pipe is connected to the diaphragm valve through the inlet and outlet flange pipes. Combined with the concentric pipe and spray hole structure, it achieves closed feeding and internal wall flushing, preventing dust from flying and reducing material loss.
It effectively prevents dust from flying, protects the environment and the health of operators, reduces material loss, and ensures that the product content is up to standard.
Smart Images
Figure CN224493006U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder feeding, and more specifically, to a powder material feeding device. Background Technology
[0002] In existing liquid formulation preparation systems, there are two methods for adding powdered solid materials: one is to directly pour the powdered solid material into the preparation tank; the other is to place a feeding funnel at the feeding port of the preparation tank, then pour the powdered solid material into the funnel, and finally add the material into the preparation tank through the funnel. Both existing methods have the following drawbacks and shortcomings:
[0003] In the production of liquid formulations, since most raw and auxiliary materials are in powder form, their fine particle size easily generates dust during preparation and feeding. This dust can pollute the clean production environment, and small quantities of materials may be wasted due to dust, affecting the content of the finished product. Some highly active and highly toxic raw and auxiliary materials can increase the contact area and quantity with operators on the production site due to the dust they generate, causing harm to the health of the operators. Utility Model Content
[0004] The purpose of this utility model is to provide a powder material feeding device that allows powdered raw and auxiliary materials to be fed in a closed manner, effectively preventing dust from flying during the feeding process, avoiding pollution and cross-contamination of the clean area environment, reducing the risk of contact between highly active and highly toxic materials and operators, and helping to protect personnel health; at the same time, the inner wall of the feeding device can be rinsed with process water during use, effectively reducing material loss and ensuring that the product content is qualified.
[0005] To achieve the purpose of this utility model, the technical solution adopted is as follows: a powder material feeding device, including a tank body and a tank cover, the tank cover has an inlet flange pipe, the bottom of the tank body has an outlet flange pipe, and both the inlet flange pipe and the outlet flange pipe are equipped with inlet diaphragm valves, and the inlet diaphragm valves connected to the inlet flange pipes are connected to liquid conveying pipes; the inner wall of the tank cover is also equipped with an outlet adjustment structure, which can adjust the spraying state of the liquid delivered by the inlet flange pipe.
[0006] Furthermore, the outlet adjustment structure includes a concentric tube located on the inner wall of the tank cover. The outlet end of the inlet flange tube can be adjusted by inserting and removing it inside the concentric tube. The outlet end of the inlet flange tube is equipped with a sealing plate that can block the concentric tube through multiple connecting rods. The end of the concentric tube near the sealing plate is also provided with a spray hole corresponding to the distance between two adjacent connecting rods.
[0007] Furthermore, the inner wall of the concentric tube slides and seals with the outlet end of the inlet flange tube.
[0008] Furthermore, a U-shaped groove is provided on the inner wall of the concentric tube. The two ends of the U-shaped groove extend along the circumference of the concentric tube, and the middle of the U-shaped groove extends along the axis of the concentric tube. The outer wall of the inlet flange tube also has a slider that slides in cooperation with the U-shaped groove.
[0009] Furthermore, there are two U-shaped grooves and two sliders, and the two U-shaped grooves are symmetrically arranged on the inner wall of the concentric tube.
[0010] Furthermore, the nozzles are in multiple groups, each group of nozzles corresponds to the spacing between two adjacent connecting rods, and multiple nozzles in the same group are arranged in a rectangular array. The outlet ends of multiple nozzles in the same column extend towards the diameter of the concentric tube and are inclined towards both ends of the concentric tube, respectively.
[0011] Furthermore, the liquid delivery pipe includes a hose connected to an inlet diaphragm valve and a rigid metal pipe connected to the hose.
[0012] Furthermore, both ends of the hose are connected to the inlet diaphragm valve and the rigid metal tube via pagoda connectors.
[0013] Furthermore, the tank body and the tank cover are sealed and fixed by clamps.
[0014] Furthermore, a support is fixed to the bottom of the tank.
[0015] The beneficial effects of this utility model are:
[0016] This invention, through its sealed feeding system, prevents dust from flying during the feeding process, avoiding pollution and cross-contamination of the clean area environment, reducing the risk of contact between highly active and highly toxic materials and operators, and thus protecting personnel health. The outlet adjustment structure allows process water to be either directly delivered into the tank or sprayed to rinse the inner wall of the tank lid and the inner wall of the tank, effectively reducing material loss and ensuring product content compliance. Attached Figure Description
[0017] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.
[0018] Figure 1 This is a structural diagram of the powder material feeding device provided by this utility model;
[0019] Figure 2 This is a diagram showing the connection structure between the concentric tube and the inlet flange tube;
[0020] Figure 3This is a cross-sectional schematic diagram of a concentric tube;
[0021] Figure 4 This is a schematic diagram of the structure of the outlet end of the imported flange pipe.
[0022] The attached diagram shows the markings and corresponding component names:
[0023] 1. Tank body, 2. Tank cover, 3. Clamp, 4. Imported flange pipe, 5. Imported diaphragm valve, 6. Hoses, 7. Rigid metal pipe, 8. Pagoda connector, 9. Concentric pipe, 10. Spray nozzle, 11. Connecting rod, 12. Sealing plate, 13. Outlet flange pipe, 14. Support.
[0024] 41. Slider;
[0025] 91. Slide groove. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.
[0027] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] like Figure 1 As shown, the present invention provides a powdered material feeding device, including a tank body 1 and a tank cover 2. The tank cover 2 can seal the tank body 1, forming a closed space inside the tank body 1. In use, the tank cover 2 can be removed from the tank body 1, thereby opening the tank body 1. An inlet flange pipe 4 is installed at the center of the tank cover 2. The inlet end of the inlet flange pipe 4 extends through the tank cover 2 into the tank body 1. The inlet flange pipe 4 can be pulled out of the tank body 1 from the tank cover 2, and can also be inserted into the tank body 1 from the tank cover 2. The outer wall of the inlet flange pipe 4 slides and seals with the through hole wall on the tank cover 2; the bottom of the tank body 1 has an outlet flange, which is an integral structure with the tank body 1; both the inlet end of the inlet flange pipe 4 and the outlet end of the outlet flange are equipped with inlet diaphragm valves 5, and the inlet end of the inlet diaphragm valve 5 connected to the inlet flange pipe 4 is also connected to a liquid conveying pipe. When in use, the inlet end of the liquid conveying pipe is connected to the process water supply equipment, so that the process water can be conveyed to the tank body 1 through the liquid conveying pipe, the inlet diaphragm valve 5 and the inlet flange pipe 4.
[0029] In this utility model, an outlet adjustment structure is also installed on the inner wall of the tank cover 2. The outlet adjustment structure is mainly used to adjust the outlet end of the inlet flange pipe 4, so that the opening state of the outlet end of the inlet flange pipe 4 can be adjusted, thereby allowing process water to be directly delivered into the tank body 1 or delivered into the tank body 1 by spraying. This not only facilitates the addition of powder into the liquid preparation tank, but also facilitates the rinsing of the inner wall of the tank body 1, avoiding powder residue in the tank body 1, effectively reducing material loss, and ensuring that the product content is qualified.
[0030] This invention, through a closed feeding system, can prevent dust from flying during the feeding process, avoid pollution and cross-contamination of the clean area environment, reduce the risk of highly active and highly toxic materials coming into contact with operators, and help protect personnel health.
[0031] In this utility model, such as Figure 2 , Figure 2 , Figure 4 As shown, the outlet adjustment structure includes a concentric tube 9 located on the inner wall of the tank cover 2. The central axis of the concentric tube 9 is on the same straight line as the central axis of the inlet flange tube 4, and the inlet end of the inlet flange tube 4 is inserted into the concentric tube 9 and moves and adjusts along its axial direction within the concentric tube 9. To prevent leakage of process water through the inlet flange tube 4 between the inner wall of the concentric tube 9 and the outer wall of the inlet flange tube 4, a sliding seal is used between the outer wall of the inlet flange tube 4 and the inner wall of the concentric tube 9.
[0032] The inlet end of the inlet flange pipe 4 also has multiple connecting rods 11. The inner side of the connecting rod 11 is flush with the inner wall of the inlet flange pipe 4, and the outer side of the connecting rod 11 is flush with the outer wall of the inlet flange pipe 4. The multiple connecting rods 11 are evenly spaced along the circumference of the inlet flange pipe 4. The extension ends of the multiple connecting rods 11 are jointly equipped with a sealing plate 12. The diameter of the sealing plate 12 is larger than the diameter of the concentric pipe 9. At the same time, the length of the connecting rod 11 is consistent with the pulling distance of the inlet flange pipe 4. When the inlet flange pipe 4 is not pulled out of the tank 1, the open end of the concentric pipe 9 is flush with the end of the connecting rod 11 away from the sealing plate 12. When the inlet flange pipe 4 is pulled out of the tank 1, the sealing plate 12 is pressed against the open end of the concentric pipe 9. When the inlet flange 4 is not pulled outward, the process water entering the inlet flange 4 can be discharged through the gap between the two adjacent connecting rods 11 and enter the tank 1; when the inlet flange 4 is pulled outward, the sealing plate 12 is pressed against the outlet end face of the inlet flange 4, and the process water entering the inlet flange 4 cannot be discharged through the gap between the two adjacent connecting rods 11.
[0033] In order to enable the sealing plate 12 to spray and rinse the inner walls of the tank body 1 and the tank cover 2 while sealing the concentric tube 9, multiple sets of spray holes 10 are opened at the end of the concentric tube 9 near the sealing plate 12. Each set of spray holes 10 corresponds to the gap between two adjacent connecting rods 11. When the inlet flange pipe 4 is pulled out of the tank body 1, the gap between two adjacent connecting rods 11 corresponds to the spray hole 10. At this time, the process water entering the inlet flange pipe 4 can be sprayed out through the spray hole 10, thereby rinsing the inner wall of the tank cover 2 and the inner wall of the tank body 1, and avoiding powder residue on the inner wall of the tank body 1 or the tank cover 2.
[0034] In order to keep the inlet flange pipe 4 stationary after being inserted and removed along the concentric pipe 9, a U-shaped groove 91 is provided on the pipe wall of the concentric pipe 9. The two ends of the U-shaped groove 91 extend along the circumference of the concentric pipe 9, and the middle of the U-shaped groove 91 extends along the axis of the concentric pipe 9. The outer wall of the inlet flange pipe 4 also has a slider 41 that slides in cooperation with the U-shaped groove 91. When it is necessary to pull the inlet flange pipe 4 out of the tank 1, first rotate the inlet flange pipe 4 clockwise so that the slider 41 on the inlet flange pipe 4 aligns with the middle section of the U-shaped groove 91. Then pull the inlet flange pipe 4 out of the tank 1. The slider 41 slides along the middle section of the U-shaped groove 91. When the inlet flange pipe 4 can no longer be pulled out of the tank 1, rotate the inlet flange pipe 4 counterclockwise so that the slider 41 on the inlet flange pipe 4 enters the other end of the U-shaped groove 91. Through the cooperation of the slider 41 and the U-shaped groove 91, the inlet flange pipe 4 and the concentric pipe 9 cannot generate relative movement on the axis, ensuring that the spray hole 10 is open and the gap between the two adjacent connecting rods 11 cannot be opened. When it is necessary to normally transport process water into tank 1, first rotate the inlet flange pipe 4 counterclockwise so that the slider 41 on the inlet flange pipe 4 corresponds to the middle section of the U-shaped groove 91. Then insert the inlet flange pipe 4 into tank 1. The slider 41 slides along the middle section of the U-shaped groove 91. When the inlet flange pipe 4 can no longer be inserted into tank 1, rotate the inlet flange pipe 4 clockwise so that the slider 41 on the inlet flange pipe 4 enters the other end of the U-shaped groove 91. Through the cooperation of the slider 41 and the U-shaped groove 91, the inlet flange pipe 4 and the concentric pipe 9 cannot generate relative movement on the axis, ensuring that the spray hole 10 is closed and the gap between the two adjacent connecting rods 11 is opened.
[0035] To make the inlet flange pipe 4 more stable after being inserted into place, two U-shaped grooves 91 on the inner wall of the concentric pipe 9 can be set. The two U-shaped grooves 91 are symmetrically arranged on the inner wall of the concentric pipe 9. At this time, there are also two sliders 41 on the inlet flange pipe 4, and the two sliders 41 are symmetrically arranged on the outer wall of the inlet flange pipe 4.
[0036] To improve the rinsing effect of the process water sprayed through the nozzles 10 on the inner walls of the tank body 1 and the tank cover 2, multiple nozzles 10 in the same group are arranged in a rectangular array. In the same group, those arranged at intervals along the circumference of the inlet flange pipe 4 form a row, and those arranged at intervals along the axis of the inlet flange pipe 4 form a column. The angle between the central axis of multiple nozzles 10 in the same column and the central axis of the concentric pipe 9 is different, and the central axis of multiple nozzles 10 in the same column extends in a fan shape. That is, multiple nozzles 10 in the same column extend obliquely towards the inner wall of the tank cover 2, horizontally, and obliquely towards the inside of the tank body 1. When the inlet flange pipe 4 is pulled outward to close the gap between two adjacent connecting rods 11, the process water entering the inlet flange pipe 4 can be sprayed onto the inner walls of the tank cover 2 and the inner walls of the tank body 1 simultaneously when it is sprayed out through the nozzles 10. This allows the powder adhering to the inner walls of the tank cover 2 and the inner walls of the tank body 1 to be dispersed, making the rinsing of the powder in the tank body 1 more thorough.
[0037] In this utility model, in order to facilitate the insertion and tightening of the inlet flange pipe 4, the liquid delivery pipe includes a flexible hose 6 and a rigid metal pipe 7. The flexible hose 6 is connected between the rigid metal pipe 7 and the inlet diaphragm valve 5. In order to facilitate the connection between the flexible hose 6 and the rigid metal pipe 7 and the inlet diaphragm pipe, both ends of the flexible hose 6 are connected to the rigid metal pipe 7 and the inlet diaphragm pipe using pagoda connectors 8.
[0038] In this utility model, although the inlet flange pipe 4 needs to be rotated during the extraction and adjustment process so that the inlet flange pipe 4 and the concentric pipe 9 will not have axial displacement after extraction and adjustment, the rotation angle of the inlet flange pipe 4 is small during the adjustment process, and it will rotate in the opposite direction to reset after the inlet flange pipe 4 is extracted into place. Furthermore, by connecting the flexible hose 6 between the rigid metal pipe 7 and the inlet diaphragm pipe, the rotation adjustment of the inlet flange pipe 4 is not restricted, and it will not cause the pipeline system to become tangled or knotted.
[0039] In this utility model, such as Figure 1 As shown, in order to facilitate the fixing of the can body 1 and the can lid 2, and to facilitate the opening and closing of the can lid 2, the can body 1 and the can lid 2 are sealed and fixed with a clamp 3; at the same time, in order to ensure the sealing of the can body 1, the can lid 2 also has a sealing ring that matches the opening of the can body 1, and a sealing ring can also be provided at the opening of the can body 1.
[0040] In this utility model, in order to facilitate the support of the tank body 1, a bracket 14 is also welded to the bottom of the tank body 1, which can be a tripod.
[0041] In use, the rigid metal pipe 7 can be directly connected to the water supply pipe near the mixing tank. Then, the clamp 3 is opened, the tank cover 2 is removed from the tank body 1, and the inlet diaphragm valve 5 on the outlet flange pipe 13 is loosened from the feed pipe on the mixing tank. Then, the tank body 1 is removed and placed directly on the powder weighing device through the bracket 14. The powder weighing device is then tare, and the powder to be added to the mixing tank is poured into the tank body 1 to achieve the weighing of the powder in the tank body 1.
[0042] After weighing, support tank 1 on the mixing tank using bracket 14, place tank cover 2 on tank 1, and secure tank 1 and tank cover 2 with clamps 3. Connect the inlet diaphragm valve 5 on the outlet flange pipe 13 to the feed pipe on the mixing tank. Then, open both inlet diaphragm valves 5 and open the switch valve on the water supply pipe. The water supply pipe delivers process water into the rigid metal pipe 7. The process water enters the inlet flange pipe 4 through the hose 6 and inlet diaphragm valve 5, and enters the tank 1 through the gap between the two adjacent connecting rods 11 at the outlet end of the inlet flange pipe 4. This impacts the powder in tank 1, causing the powder in tank 1 to enter the mixing tank along with the process water through the outlet flange pipe 13, inlet diaphragm valve 5, and feed pipe on the mixing tank. When half or less of the process water remains in tank 1, and it is necessary to further process the powder in tank 1... When rinsing the inner wall of the can lid 2, first rotate the inlet flange pipe 4 clockwise so that the slider 41 on the inlet flange pipe 4 aligns with the middle section of the U-shaped groove 91. Then pull the inlet flange pipe 4 outwards towards the tank body 1. The slider 41 slides along the middle section of the U-shaped groove 91. When the inlet flange pipe 4 can no longer be pulled outwards towards the tank body 1, rotate the inlet flange pipe 4 counterclockwise so that the slider 41 on the inlet flange pipe 4 enters the other end of the U-shaped groove 91. Through the cooperation of the slider 41 and the U-shaped groove 91, the inlet flange pipe 4 and the concentric pipe 9 cannot generate relative movement on the axis, ensuring that the spray hole 10 is open and the gap between the two adjacent connecting rods 11 cannot be opened. At this time, the process water sprayed through the spray hole 10 rinses the inner wall of the tank body 1 and the inner wall of the can lid 2, so that all the powder adhering to the inner wall of the tank body 1 and the inner wall of the can lid 2 is rinsed clean.
[0043] In this invention, when the inlet flange 4 is pulled outwards, causing the sealing plate 12 to abut against the outlet end of the concentric tube 9, although the sealing plate 12 and the outlet end of the concentric tube 9 are not sealed, it does not affect the process water from being sprayed out through the nozzle 10. Simultaneously, in this invention, depending on the need, the inlet flange 4 can also remain in the pulled-out state of the tank 1, allowing the process water to directly enter the tank 1 through the nozzle 10; alternatively, depending on the need, the inlet flange 4 can remain in the inserted state of the tank 1, allowing the process water to directly drain into the tank 1 from the gap between two adjacent connecting rods 11. That is, the method by which the process water enters the tank 1 can be adjusted according to actual usage requirements.
[0044] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0045] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.
Claims
1. A powdered material feeding device, characterized in that, The tank includes a tank body (1) and a tank cover (2). The tank cover (2) has an inlet flange pipe (4), and the bottom of the tank body (1) has an outlet flange pipe (13). Both the inlet flange pipe (4) and the outlet flange pipe (13) are equipped with inlet diaphragm valves (5). The inlet diaphragm valves (5) connected to the inlet flange pipe (4) are connected to a liquid delivery pipe. The inner wall of the tank cover (2) is also equipped with an outlet adjustment structure, which can adjust the spraying state of the liquid delivered by the inlet flange pipe (4).
2. The powdered material feeding device according to claim 1, characterized in that, The outlet adjustment structure includes a concentric tube (9) located on the inner wall of the can cover (2). The outlet end of the inlet flange tube (4) can be inserted and removed within the concentric tube (9) for adjustment. The outlet end of the inlet flange tube (4) is connected by multiple connecting rods (11) and a sealing plate (12) that can block the concentric tube (9) is installed. The end of the concentric tube (9) near the sealing plate (12) is also provided with a spray hole (10) corresponding to the two adjacent connecting rods (11).
3. The powdered material feeding device according to claim 2, characterized in that, The inner wall of the concentric tube (9) is in sliding sealing fit with the outlet end of the inlet flange tube (4).
4. The powdered material feeding device according to claim 2, characterized in that, The inner wall of the concentric tube (9) is also provided with a U-shaped groove (91). The two ends of the U-shaped groove (91) extend along the circumference of the concentric tube (9), and the middle of the U-shaped groove (91) extends along the axis of the concentric tube (9). The outer wall of the inlet flange tube (4) is also provided with a slider (41) that slides with the U-shaped groove (91).
5. The powdered material feeding device according to claim 4, characterized in that, There are two U-shaped grooves (91) and two sliders (41), and the two U-shaped grooves (91) are symmetrically arranged on the inner wall of the concentric tube (9).
6. The powdered material feeding device according to claim 2, characterized in that, The nozzles (10) are in multiple groups. Each group of nozzles (10) corresponds to the spacing between two adjacent connecting rods (11). The multiple nozzles (10) in the same group are arranged in a rectangular array. The outlet ends of the multiple nozzles (10) in the same column extend towards the diameter of the concentric tube (9) and tilt towards both ends of the concentric tube (9).
7. The powdered material feeding device according to claim 2, characterized in that, The liquid delivery pipe includes a hose (6) connected to the inlet diaphragm valve (5) and a rigid metal pipe (7) connected to the hose (6).
8. The powdered material feeding device according to claim 7, characterized in that, Both ends of the hose (6) are connected to the inlet diaphragm valve (5) and the rigid metal tube (7) through the pagoda connector (8).
9. The powdered material feeding device according to claim 2, characterized in that, The tank body (1) and the tank cover (2) are sealed and fixed by clamps (3).
10. The powdered material feeding device according to claim 2, characterized in that, The bottom of the tank (1) is also fixed with a bracket (14).