A multi-stage mixing device for zinc borate

Abstract

The utility model relates to inorganic salt production equipment technical field discloses a kind of zinc borate multistage mixing devices, and the device includes mixing tank, rotating component and pushing assembly;The pushing assembly includes the pusher cylinder with flap being equipped in bottom, the pusher cylinder can slide along guide rail fixed in the inner wall of mixing tank, and the fixed support plate in tank is slidably matched with flap, and the quantitative movement and fixed-point feeding of material are realized by mechanical linkage.The stirring shaft of rotating component is segmented and provided with scattering paddle and scraping bottom paddle.The utility model solves the problem of inaccurate proportioning and uneven mixing of materials caused by manual feeding in the prior art through the above structure, realizes the automation and precision of feeding, and at the same time, the mixing effect is strengthened, and the production efficiency and product quality stability are significantly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of inorganic salt production equipment, and in particular to a multi-stage mixing device for zinc borate. Background Technology

[0002] Zinc borate, as an important inorganic additive flame retardant, is widely used in various industries such as plastics, rubber, and coatings. In the industrial production of zinc borate, the wet process is a mainstream preparation method. This process typically involves adding powdered raw materials such as zinc oxide and boric acid in a specific ratio to a reaction vessel containing water, and then heating and stirring to ensure a complete reaction, ultimately producing zinc borate.

[0003] In existing production processes, the addition of raw materials generally relies on manual operation. Workers typically need to manually weigh zinc oxide and boric acid before transporting and pouring the weighed materials into the reactor. This method is highly dependent on the worker's experience and sense of responsibility, making it difficult to ensure that the proportions of materials added each time are precise and consistent. Even slight differences between batches can directly affect the progress of the chemical reaction and the quality of the final product, resulting in poor product quality stability.

[0004] Furthermore, during the mixing and reaction stage, due to the different wettability of zinc oxide and boric acid powder in water, some materials tend to float on the surface and clump together after being added to the reactor, while others quickly settle to the bottom. Traditional stirring devices often use a single type of impeller, which is difficult to efficiently handle both the floating material on the surface and the settling material at the bottom simultaneously, resulting in uneven mixing, low heat transfer efficiency, and consequently affecting the completeness of the reaction.

[0005] Furthermore, the entire production process is typically carried out in segments and independently, meaning that steps such as weighing, feeding, reaction, and drying require multiple material transfers between different equipment units. This not only increases the labor intensity of workers but also significantly reduces overall production efficiency, and the degree of automation in the process is extremely low. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a multi-stage mixing device for zinc borate, which aims to improve the problems of raw material addition relying on manual labor, inaccurate proportioning, unstable quality between batches, and easy material agglomeration and sedimentation and low mixing efficiency in zinc borate production devices.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage zinc borate mixing device, comprising: a mixing tank, a jacketed heating device sleeved on the outer wall of the mixing tank, a rotating assembly disposed inside the mixing tank, a feed hopper and a water inlet pipe disposed above the mixing tank, and a discharge pipe communicating with the mixing tank; it further comprises a guide rail and a support plate fixed on the inner wall of the mixing tank, and a pushing assembly.

[0008] The pushing component includes a pusher cylinder with a flip-top at its bottom.

[0009] Furthermore, the pushing component is slidably mounted on the guide rail, and the support plate and the flip cover are combined by a sliding engagement to support the flip cover before the pushing component moves to the feeding position.

[0010] Preferably, the pushing assembly further includes an electric push rod connected to the pusher cylinder for providing power to drive it to slide along the guide rail.

[0011] Preferably, the pushing component further includes a fixing post, and the flip cover is rotatably connected to the fixing post via a rotating buckle thereon, forming a hinge structure.

[0012] Preferably, the pushing component further includes a pushing plate connected to the pushing cylinder, the pushing plate being disposed below the feeding hopper for temporarily blocking the feeding hopper when the pushing component moves.

[0013] Preferably, the rotating assembly includes a motor and a stirring shaft. The upper section of the stirring shaft is fixed with a dispersing paddle, and the lower section is fixed with a bottom scraping paddle, which is used to achieve efficient stratification and mixing of the materials in the tank.

[0014] Preferably, the feed hopper specifically includes a zinc oxide feed hopper and a boric acid feed hopper.

[0015] Preferably, the zinc borate multi-stage mixing device further includes a drying tank and a collection box. The discharge pipe of the mixing tank is connected to the drying tank through a conveying pipe one, and the drying tank is connected to the collection box through a conveying pipe two, so as to form a continuous production process.

[0016] Preferably, the device further includes a rolling support and a second motor. The drying tank is mounted on the rolling support and is driven to rotate by the second motor to enhance the drying effect.

[0017] This utility model has the following beneficial effects: 1. In this utility model, by setting up a pushing assembly including a pusher cylinder, a flip cover, a support plate and a guide rail, a mechanical linkage automatic unloading technical solution is achieved by using an electric push rod drive and gravity. This solves the problems of inaccurate feeding, large fluctuations in the ratio and unstable product quality caused by manual feeding in the prior art. It achieves the effects of automated and precise feeding of raw materials, ensuring constant production ratio and improving product quality stability.

[0018] 2. In this utility model, by setting an upper dispersing paddle and a lower scraping paddle on the stirring shaft, a double-layer stirring structure working in synergy is formed, which solves the problem that traditional stirring methods cannot simultaneously disperse materials on the liquid surface and prevent materials at the bottom of the tank from settling. This achieves rapid, uniform, and dead-angle-free mixing of materials, prevents raw materials from clumping and products from sticking to the wall, thereby improving reaction efficiency and product purity. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a zinc borate multi-stage mixing device proposed in this utility model; Figure 2 This is a schematic diagram of the dispersing paddle section of a zinc borate multi-stage mixing device proposed in this utility model; Figure 3 This is a schematic diagram of the stirring shaft portion of a multi-stage mixing device for zinc borate proposed in this utility model; Figure 4 This is a schematic diagram of the pusher plate part of a zinc borate multi-stage mixing device proposed in this utility model; Figure 5 for Figure 4 A larger image is shown at point A in the image.

[0020] Legend: 1. Jacketed heating device; 2. Mixing tank; 3. Motor 1; 4. Rotating assembly; 401. Stirring shaft; 402. Dispersing paddle; 403. Bottom scraper paddle; 5. Zinc oxide feed hopper; 6. Boric acid feed hopper; 7. Water inlet pipe; 8. Conveying pipe 1; 9. Rolling support; 10. Drying tank; 11. Conveying pipe 2; 12. Collection box; 13. Motor 2; 14. Pushing assembly; 1401. Pusher plate; 1402. Flip cover; 1403. Support plate; 1404. Guide rail; 1405. Pusher cylinder; 1406. Fixed column; 1407. Rotary buckle; 1408. Electric push rod; 15. Discharge pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 5 This utility model provides a multi-stage mixing device for zinc borate, which aims to solve the problems of raw material input relying on manual experience, inaccurate proportioning, poor mixing effect and low degree of automation in the production process of zinc borate in the prior art.

[0023] like Figure 1 As shown, the multi-stage zinc borate mixing device includes a mixing tank 2, a jacketed heating device 1 fixed to the outer wall of the mixing tank 2, a rotating assembly 4 installed inside the mixing tank 2, a feed hopper and a water inlet pipe 7 fixed to the top of the mixing tank 2, and a discharge pipe 15 connected to the bottom of the mixing tank 2. Please refer to [reference needed]. Figure 2 and Figure 3 The rotating assembly 4 includes a drive motor 3 and a stirring shaft 401. The motor 3 is connected to the top end of the stirring shaft 401. The stirring shaft 401 is vertically installed inside the mixing tank 2. The dispersing paddle 402 is fixedly connected to the upper section of the stirring shaft 401, and the bottom scraping paddle 403 is fixedly connected to the lower section of the stirring shaft 401.

[0024] Please refer to Figure 1 , Figure 4 and Figure 5 A guide rail 1404 and a support plate 1403 are fixedly connected to the inner wall of the mixing tank 2. A pushing assembly 14 is slidably mounted on the guide rail 1404. The pushing assembly 14 is located between the feed hopper and the mixing tank 2. The pushing assembly 14 includes a pusher cylinder 1405, and a flip cover 1402 is hinged to the bottom of the pusher cylinder 1405. When the pusher cylinder 1405 is in the initial position, the top surface of the support plate 1403 slides against the bottom surface of the flip cover 1402 to support the flip cover 1402 and keep it closed. The pushing assembly 14 also includes a fixing column 1. 406. The flip cover 1402 is rotatably connected to the fixed post 1406 via a rotating buckle 1407 on its side, forming a hinge structure. The push assembly 14 also includes an electric push rod 1408 and a push plate 1401. The output end of the electric push rod 1408 is fixedly connected to the push cylinder 1405 and the push plate 1401, and is used to drive the push cylinder 1405, the flip cover 1402 and the push plate 1401 to slide synchronously along the guide rail 1404. The push plate 1401 is located below the feed hopper and is used to block the material in the feed hopper when not feeding.

[0025] In a preferred embodiment, the feeding hopper specifically includes a zinc oxide feeding hopper 5 and a boric acid feeding hopper 6. When this device is needed, the raw materials enter the pusher cylinder 1405 through the zinc oxide feeding hopper 5 and the boric acid feeding hopper 6, respectively. The electric push rod 1408 is activated and provides power, driving the pusher cylinder 1405, the pusher plate 1401, and the flip cover 1402 to slide synchronously along the guide rail 1404. At this time, the pusher plate 1401 blocks the lower openings of the zinc oxide feeding hopper 5 and the boric acid feeding hopper 6. After the pusher cylinder 1405, the pusher plate 1401, and the flip cover 1402 slide out of the range of the support plate 1403... Under the action of gravity, the flip cover 1402 causes the rotating buckle 1407 on one side to flip open around the fixed column 1406, so that the raw materials in the pusher cylinder 1405 are put into the mixing tank 2. The electric push rod 1408 then moves in the opposite direction to reset the push assembly 14 in preparation for the next feeding. In the mixing tank 2, water is added through the water inlet pipe 7. The motor 3 drives the stirring shaft 401 to rotate. The upper dispersing paddle 402 fully mixes the two raw materials with water, while the lower scraping paddle 403 rotates along the inner wall of the mixing tank 2 to prevent the raw materials from settling. At the same time, the jacket heating device 1 heats the raw materials inside the mixing tank 2.

[0026] As another preferred embodiment, the device further includes a drying tank 10 and a collection box 12. The mixed raw materials are transported to the drying tank 10 through the discharge pipe 15 and the conveying pipe 8. The drying tank 10 is mounted on the rolling support 9 and is powered by the motor 13 for drying. The dried powdered raw materials are collected into the collection box 12 through the conveying pipe 11 for storage.

[0027] The jacketed heating device 1 is used to heat the materials inside the mixing tank 2 to meet the temperature requirements of the reaction; the motor 3 serves as a power source to drive the stirring shaft 401 to rotate; the dispersing paddle 402 is used to quickly disperse the powdery raw materials on the water surface and mix them with the water to prevent clumping; the bottom scraper 403 is used to continuously scrape the inner wall and bottom of the mixing tank 2 to prevent material sedimentation or sticking to the wall; the pusher cylinder 1405 serves as a metering container, and its precise cooperation with the flip cover 1402 that can slide on the guide rail 1404 and the support plate 1403 for supporting the flip cover 1402 together constitutes the automatic and accurate feeding of raw materials. The core structure includes an electric push rod 1408 as a power source to drive the push assembly 14 in reciprocating linear motion; a rolling bracket 9 to support the drying tank 10; a second motor 13 to drive the drying tank 10 in drying operations; and a collection box 12 to finally collect the powdered finished product. Regarding the specific models and internal structures of the first motor 3 and the second motor 13, as well as the conveying pumps or valves that may be configured in the first conveying pipe 8 and the second conveying pipe 11 to achieve material conveying, those skilled in the art can select commercially available standard parts for configuration according to production needs and throughput. These are all well-known technologies in the field and will not be elaborated upon here.

[0028] Working principle: First, zinc oxide and boric acid raw materials are added to the zinc oxide feed hopper 5 and boric acid feed hopper 6 respectively. Under the action of gravity, the raw materials fall into and fill the pusher cylinder 1405 located below them, completing the quantitative feeding of one batch. Then, the electric push rod 1408 is started, and its output end pushes the entire push assembly 14, which consists of the pusher cylinder 1405, the flip cover 1402, and the pusher plate 1401, to slide along the guide rail 1404 fixed to the inner wall of the mixing tank 2 towards the center of the mixing tank 2. During this process, the pusher plate 1401 is temporarily closed. The lower ends of the zinc oxide feed hopper 5 and the boric acid feed hopper 6, along with the bottom surface of the flip cover 1402, slide on and are reliably supported by the top surface of the support plate 1403, thereby carrying and moving the material in the pusher cylinder 1405 in a sealed manner. When the pusher cylinder 1405 moves to the predetermined feeding position, the flip cover 1402 slides out of the support range of the support plate 1403. Then, under the weight of itself and the material, the flip cover 1402 flips downward and opens with the rotating buckle 1407 around the fixed column 1406 as the axis, opening all the material in the pusher cylinder 1405. A fixed quantity of raw materials is instantly poured into mixing tank 2. After feeding is complete, the electric push rod 1408 moves in the reverse direction, pulling the push component 14 back to its initial position, preparing for the next automatic feeding. At the same time, water is injected into mixing tank 2 through water inlet pipe 7, motor 3 starts and drives stirring shaft 401 to rotate. The dispersing blade 402 on the upper section of stirring shaft 401 performs high-speed shearing and dispersing of the raw materials near the liquid surface, so that they are quickly wetted and mixed with water to prevent floating and clumping. Meanwhile, the bottom scraper blade 403 on the lower section of stirring shaft 401 is close to mixing tank 2. The bottom and sidewalls rotate and continuously scrape to prevent the reactants or products from settling; the jacketed heating device 1 heats the mixture in the mixing tank 2 to provide the temperature required for the reaction; after the reaction is completed, the generated slurry is transported to the drying tank 10 through the discharge pipe 15 and the conveying pipe 8; the motor 13 drives the drying tank 10 located on the rolling support 9 to perform the drying operation, removing the moisture from the slurry to obtain the powdered zinc borate product; finally, the dried product is collected in the collection box 12 for storage through the conveying pipe 11.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 multi-stage mixing device for zinc borate, comprising, Mixing tank (2); Jacketed heating device (1) fitted on the outer wall of the mixing tank (2); Rotating assembly (4) is provided inside the mixing tank (2); The feed hopper and water inlet pipe (7) located above the mixing tank (2) and the discharge pipe (15) communicating with the mixing tank (2) are characterized in that, It also includes a guide rail (1404) and a support plate (1403) fixed to the inner wall of the mixing tank (2); and A pushing component (14) is slidably disposed on the guide rail (1404). The pushing component (14) includes a pusher cylinder (1405) and a flip cover (1402) disposed at its bottom. The support plate (1403) is slidably engaged with the flip cover (1402) to support the flip cover (1402).

2. The zinc borate multi-stage mixing device according to claim 1, characterized in that: The pushing assembly (14) also includes an electric push rod (1408) connected to the push cylinder (1405) to drive it to slide along the guide rail (1404).

3. The zinc borate multi-stage mixing device according to claim 1, characterized in that: The push assembly (14) also includes a fixing post (1406), and the flip cover (1402) is rotatably connected to the fixing post (1406) via a rotating buckle (1407).

4. The zinc borate multi-stage mixing device according to claim 1, characterized in that: The pushing assembly (14) also includes a pusher plate (1401) connected to the pusher cylinder (1405), the pusher plate (1401) being located below the feed hopper (5, 6).

5. The zinc borate multi-stage mixing device according to claim 1, characterized in that: The rotating assembly (4) includes a motor (3) and a stirring shaft (401). The upper section of the stirring shaft (401) is fixed with a dispersing paddle (402), and the lower section of the stirring shaft (401) is fixed with a bottom scraping paddle (403).

6. The zinc borate multi-stage mixing device according to claim 1, characterized in that: The feed hoppers include a zinc oxide feed hopper (5) and a boric acid feed hopper (6).

7. The zinc borate multi-stage mixing device according to claim 1, characterized in that, It also includes a drying tank (10) and a collection box (12); the discharge pipe (15) of the mixing tank (2) is connected to the drying tank (10) through a first conveying pipe (8), and the drying tank (10) is connected to the collection box (12) through a second conveying pipe (11).

8. The zinc borate multi-stage mixing device according to claim 7, characterized in that, It also includes a rolling support (9) and a second motor (13); the drying tank (10) is mounted on the rolling support (9), and the second motor (13) is used to drive the drying tank (10).

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