A high-efficiency dual-tank grinding and circulating device

Abstract

This utility model discloses a high-efficiency dual-tank grinding and circulation device, comprising a storage tank A and a storage tank B, agitators for mixing materials in tank A and tank B, automatic return valves for tank A and tank B for controlling the return path, an automatic feeding valve for circulating materials, an automatic valve for finished product, and automatic discharge valves for tank A and tank B for controlling the discharge from the storage tanks. The automatic discharge valves for tank A and tank B are respectively connected to storage tank A and tank B and a circulation pump; the circulation pump is connected to a mill via the automatic feeding valve for circulating materials, and the mill's discharge end is connected to the return pipeline and the front end of the automatic valve for finished product, thus constructing a conveying path for material grinding and circulation. This solves the problem of avoiding repeated grinding in the dual-circulation tanks, ensuring uniformity, and achieving high-precision continuous production.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically a high-efficiency dual-tank grinding circulation device, which is suitable for production scenarios such as new energy materials where high grinding precision and uniformity are required. Background Technology

[0002] Traditional single-tank grinding and circulation systems are prone to mixing of ground and unground materials during continuous feeding. This results in some materials being repeatedly ground, leading to uneven particle size distribution, affecting product quality, and reducing the degree of refinement and prolonging grinding time. With the rapid development of the new energy industry, the production of new energy materials such as lithium manganese iron phosphate and lithium iron phosphate urgently requires efficient and refined grinding equipment to improve material performance. Traditional equipment cannot meet these demands; therefore, the development of a new, efficient dual-tank grinding and circulation system is essential. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model aims to provide a high-efficiency, high-precision, uniform and stable dual-tank grinding and circulation device, which solves the problem of avoiding repeated grinding in dual circulation tanks, ensuring uniformity and realizing high-precision continuous production.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-efficiency dual-tank grinding and circulation device includes a storage tank A and a storage tank B, agitators for mixing materials in tank A and tank B, automatic return valves for tank A and tank B for controlling the return material path, an automatic feeding valve for circulating materials, an automatic finished product valve, and automatic discharge valves for tank A and tank B for controlling the discharge from the storage tanks. The automatic discharge valves for tank A and tank B are respectively connected to storage tank A and tank B and a circulation pump. The circulation pump is connected to a mill via the automatic feeding valve, and the mill's discharge end is connected to the return pipeline and the front end of the automatic finished product valve, thus establishing a conveying path for the grinding and circulation of materials.

[0006] Further optimization involves providing feeding ports at the top of both tanks A and B, with a finished product outlet at the rear of the automatic finished product valve. Tanks A and B are mounted on a frame, and the feeding operation is performed based on the material weight feedback from a weighing module, achieving precise quantitative feeding and ensuring the accuracy and consistency of material input during the production process.

[0007] Furthermore, the agitators in tanks A and B adopt a pneumatic energy-saving drive method;

[0008] Furthermore, the automatic return valves for tank A and tank B, the automatic circulating feed valve, the automatic finished product valve, the automatic discharge valve for tank A, and the automatic discharge valve for tank B are all connected to the PLC control cabinet.

[0009] Furthermore, by using a frame to integrate storage tank A, storage tank B, and the PLC control cabinet into a single structure, installation space is effectively saved, and the overall integrity and compactness of the device are enhanced.

[0010] Furthermore, the temperature of the material inside the storage tank is monitored in real time by a temperature sensor and fed back to the PLC control cabinet. The PLC control cabinet automatically controls the start and stop of the mold temperature controller according to the preset temperature range, so as to achieve precise regulation of the material temperature. Specifically, the temperature of the material inside the storage tank is detected in real time by a thermometer and fed back to the PLC control cabinet. The PLC control cabinet starts and stops the mold temperature controller according to the heating and cooling requirements.

[0011] Furthermore, the circulating pump delivers the mixture from storage tank A or storage tank B to the mill for grinding according to preset parameters, ensuring continuous homogeneous grinding of the material under stable flow and pressure.

[0012] This utility model has the following beneficial effects:

[0013] The dual-tank alternating feeding system enables continuous production, reducing downtime and significantly improving production efficiency compared to traditional single-tank units. It can meet the demands of large-scale continuous production, such as the mass production of new energy materials. It avoids repeated grinding, ensuring consistent material fineness across batches, improving product quality uniformity, and resolving the uneven particle size distribution problem caused by material mixing in traditional single-tank systems. This is beneficial for producing high-performance products, such as high-quality lithium manganese iron phosphate and lithium iron phosphate, among other new energy materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency dual-tank grinding and circulating device according to the present invention. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and relevant knowledge. Obviously, the described applications are only some embodiments of the present invention, and not all embodiments.

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Reference Figure 1As shown, a high-efficiency dual-tank grinding and circulating device includes a storage tank A 1 and a storage tank B 6, mounted on a frame 9 and connected to the frame 9 via a weighing module 8; an agitator 2 for tank A and an agitator 5 for tank B extend into storage tank A 1 and storage tank B 6 respectively; an automatic return valve 3 for tank A connects storage tank A 1 to the mill return pipeline, and an automatic return valve 4 for tank B connects storage tank B 6 to the mill return pipeline; an automatic discharge valve 15 for tank A and an automatic discharge valve 14 for tank B connect storage tank A 1 and storage tank B 6 respectively to a circulating pump 11. Feed end; the discharge end of the circulating pump 11 is connected to the circulating feed automatic valve 12, the circulating feed automatic valve 12 is connected to the feed end of the mill 10, the discharge end of the mill 10 is connected to the return pipeline and the front pipeline of the finished product automatic valve 13; the rear end of the finished product automatic valve 13 is the finished product outlet 19; the thermometer 7 is electrically connected to the storage tank and the PLC control cabinet 16, the mold temperature controller 17 is connected to the storage tank jacket and the PLC control cabinet 16, and the PLC control cabinet 16 is electrically connected to and controlled by each automatic valve, agitator, circulating pump, etc.

[0018] Specifically, this includes storage tanks A (1) and B (6): serving as material storage containers, during production, materials are first fed into storage tank A (1) through the feeding port, and then accurately weighed by the weighing module 8 to ensure accurate input. While the material in storage tank A (1) is being ground, storage tank B (6) can prepare materials or wait for materials, achieving alternating feeding. For example, when producing lithium iron phosphate materials, raw materials are first fed into storage tank A (1) through the feeding port 18 for grinding, while storage tank B (6) simultaneously prepares the next batch of raw materials. After a certain stage of the grinding process in storage tank A (1), the process switches to feeding from storage tank B (6). This avoids the material mixing problem that occurs during single-tank production, ensuring that each batch of materials is ground independently and in an orderly manner, ensuring consistent fineness of each batch of materials, improving product uniformity, and solving the problem of repeated grinding in traditional single-tank production.

[0019] Agitators 2 in tank A and 5 in tank B: These are pneumatically driven and energy-saving, used to agitate materials in tanks 1 (A) and 6 (B). For example, after adding basic liquids and solid powders, the agitators rotate to thoroughly mix them, ensuring the materials reach a homogeneous state before entering mill 10. This facilitates uniform grinding during subsequent grinding processes, improving the grinding effect. Furthermore, the pneumatic drive saves energy and reduces production energy consumption.

[0020] In this invention, by opening the automatic discharge valve 15 of tank A and the automatic circulating feed valve 12, the material in storage tank A 1 can be sent to the mill 10 for grinding via the circulating pump 11; by opening the automatic return valve 4 of tank B, the ground material is sent to storage tank B 6. This achieves path control of the material at different stages, such as the circulation path during grinding and the discharge path when the finished product is discharged, ensuring the automated implementation of alternating feeding between the two tanks, avoiding human error, ensuring continuous and stable production, and improving production efficiency.

[0021] In this utility model, the mill 10 grinds and refines the material, and the circulating pump 11 delivers the material in a timed and quantitative manner. The circulating pump 11 delivers the mixed liquid in storage tank A 1 to the mill 10 in a timed and quantitative manner, controlling the feed amount and frequency so that the material is ground evenly in the mill, ensuring the grinding effect, avoiding over- or under-grinding of some materials due to uneven feeding, and improving the uniformity of product particle size.

[0022] In this invention, the thermometer 7 monitors the temperature of the material inside the storage tank in real time and feeds it back to the PLC control cabinet 16. When the material temperature changes due to grinding or other processes during production, such as excessively high temperatures potentially causing material deterioration (e.g., some new energy materials), or excessively low temperatures leading to high viscosity and poor flowability affecting grinding, the PLC control cabinet 16 starts or stops the mold temperature controller 17 based on the feedback from the thermometer 7. The mold temperature controller 17 indirectly regulates the material temperature through the storage tank jacket, ensuring that the material is subjected to grinding and other operations in a suitable temperature environment, thus broadening the range of materials applicable to the device and ensuring product quality.

[0023] Materials are added to storage tank 1 A by feeding back the weight through weighing module 8, achieving high-precision weighing and feeding, accurately controlling the amount of material input, ensuring consistent material quantity for each batch, laying the foundation for producing products with good uniformity, and improving product quality stability.

[0024] Frame 9: Integrates storage tank 1 (A), storage tank 6 (B), and PLC control cabinet 16 into one unit, making the device structure compact and saving production space. At the same time, the quick-release design of each interface facilitates disassembly and assembly during installation and maintenance, reducing the difficulty and cost of operation and maintenance.

[0025] PLC Control Cabinet 16: Except for raw material feeding, the entire production process, including valve switching, agitator start / stop, circulating pump operation, and mold temperature controller control, is automatically controlled by this interlocking system. It automatically completes operations such as grinding material conveying and switching, finished product discharge, dual-tank role switching, and mold temperature controller start / stop, achieving automated production, reducing manual intervention, improving production efficiency and stability, and ensuring the efficient and orderly operation of the entire unit.

[0026] In this invention, alternating feeding from two tanks enables continuous production, reducing downtime. Compared to traditional single-tank devices, production efficiency is significantly improved, meeting the demands of large-scale continuous production, such as the mass production of new energy materials. It avoids repeated grinding, ensuring consistent material fineness in each batch, improving product quality uniformity, and solving the problem of uneven particle size distribution caused by material mixing in traditional single-tank systems. This is beneficial for producing high-performance products, such as high-quality lithium manganese iron phosphate and lithium iron phosphate, among other new energy materials. Material temperature is controllable; through the combination of a mold temperature controller and the storage tank jacket, it can adapt to materials with different temperature requirements. It is suitable for materials prone to deterioration at high temperatures, as well as materials with high viscosity and poor flowability, broadening the application range of the device and improving its adaptability to different production scenarios. Integrating the control cabinet and dual storage tanks into one compact structure with quick-release interfaces facilitates installation and maintenance, reducing operating costs. It also features high-precision weighing and feeding, and pneumatic energy-saving stirring, ensuring production efficiency while achieving energy saving and precise control, thus improving the overall practicality and economy of the device.

[0027] The operating steps of this utility model are as follows:

[0028] The basic liquid and solid powder are added to storage tank A through the feeding port according to the required ratio. The mixture is then thoroughly stirred by the agitator to ensure that the materials are evenly mixed.

[0029] Open the automatic discharge valve and the automatic circulating feed valve of tank A in sequence, start the grinder and the circulating pump. The circulating pump delivers the mixture in tank A to the grinder for grinding according to the set parameters in a timed and quantitative manner. After the set time is reached, take a sample for testing.

[0030] If the sample passes the inspection, the automatic return valve of tank B is opened to transport the ground material to storage tank B, completing one round of grinding.

[0031] After multiple rounds of cyclic grinding, when the material in storage tank B reaches the target particle size requirement, the automatic valve for circulating feed is closed and the automatic valve for finished product is opened. The circulating pump then transports the finished product to the outlet for collection.

[0032] After the material in tank B is emptied, the automatic return valve of tank B is linked to the automatic return valve of tank A, and the automatic discharge valve of tank B is linked to the automatic discharge valve of tank A, so that the roles of tanks A and B can be interchanged and seamlessly connected to enter the next batch of production.

[0033] Throughout the production process, temperature sensors monitor the material temperature in real time, and the PLC control cabinet starts and stops the mold temperature controller as needed based on the feedback data to precisely regulate the material temperature.

[0034] Except for the raw material feeding stage, all other operations are automatically controlled by a PLC control cabinet. The device integrates storage tank A, storage tank B, and the PLC control cabinet into a single unit via a frame, resulting in a compact structure that facilitates operation and maintenance.

[0035] Although some embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and all such changes and alterations should fall within the scope of the present invention.

Claims

1. A high-efficiency dual-tank grinding and circulating device, characterized in that, It includes a storage tank A (1), a storage tank B (6), an agitator (2) for mixing materials in the storage tank A and an agitator (5) for mixing materials in the storage tank B, an automatic return valve (3) for the return path in the storage tank A and an automatic return valve (4) for the return path in the storage tank A, an automatic feed valve (12), an automatic valve for finished product (13), and an automatic discharge valve (15) for the storage tanks A and an automatic discharge valve (14) for the storage tanks B. The automatic discharge valve (15) for the storage tank A and the automatic discharge valve (14) for the storage tanks B are respectively connected to the storage tank A (1), the storage tank B (6) and the circulating pump (11). The circulating pump (11) is connected to the mill (10) via the automatic feed valve (12).

2. The high-efficiency dual-tank grinding and circulating device according to claim 1, characterized in that, Both the top of the A tank (1) and the B tank (6) are provided with feeding ports (18), and the finished material automatic valve (13) is provided with a finished material outlet (19). The A tank (1) and the B tank (6) are installed on the frame (9) and the weight is fed in by the weighing module (8).

3. The high-efficiency dual-tank grinding and circulating device according to claim 1, characterized in that, The A-tank agitator (2) and the B-tank agitator (5) are pneumatically energy-saving driven.

4. The high-efficiency dual-tank grinding and circulating device according to claim 1, characterized in that, The automatic return valve (3) of tank A, the automatic return valve (4) of tank B, the automatic feeding valve (12), the automatic finished product valve (13), the automatic discharge valve (15) of tank A, and the automatic discharge valve (14) of tank B are all connected to the PLC control cabinet (16).

5. The high-efficiency dual-tank grinding and circulating device according to claim 1, characterized in that, The A storage tank (1), B storage tank (6) and PLC control cabinet (16) are integrated into one unit through the frame (9).

6. The high-efficiency dual-tank grinding and circulating device according to claim 1, characterized in that, The temperature of the material in the storage tank is detected in real time by the thermometer (7) and fed back to the PLC control cabinet (16). The PLC control cabinet (16) starts and stops the mold temperature controller (17) according to the heating and cooling requirements.

7. The high-efficiency dual-tank grinding and circulating device according to claim 1, characterized in that, The mixture in storage tank A (1) or storage tank B (6) is transported to the mill (10) for grinding by a circulating pump (11) at regular intervals and in a quantitative manner.

Images