Automatic acid preparation device of ceramic machine

Abstract

The utility model discloses an automatic acid preparation device of a ceramic machine. The automatic acid preparation device comprises a bracket, a concentrated acid box, an acid preparation box, an acid storage box and a stirring component, the acid preparation box is mounted at the top of the bracket, and the acid storage box is mounted on the side; the top of the acid preparation box is provided with a concentrated acid box, the concentrated acid box is provided with a water inlet pipe with a switch valve and a pipe fitting communicated with the top of the acid storage box, the box body is internally provided with a stirring assembly, and the pipe fitting is further provided with a switch A; the concentrated acid tank is provided with an acid inlet pipe and a liquid discharge pipe, the liquid discharge pipe is communicated with the top of the acid preparation tank, and the acid inlet pipe and the liquid discharge pipe are respectively provided with a switch B and a switch C; a backwash pump is arranged on the side edge of the acid storage barrel; according to the stirring assembly, sufficient mixing is achieved, and the influence of concentration fluctuation on the cleaning effect is avoided; the concentrated acid tank and the acid storage tank are separated, so that continuous production and acid preparation operation can be simultaneously carried out, the production process is optimized, and the production continuity is ensured; the improved acid preparation process is beneficial to reducing the scaling and blocking phenomena of the ceramic plate and maintaining a good working state of equipment.

Description

Technical Field

[0001] This utility model relates to the field of acid preparation technology, specifically to an automatic acid preparation device for ceramic machines. Background Technology

[0002] The main equipment in the tailings dewatering process is the tailings ceramic filter, or simply ceramic filter. Based on the principle of capillary micropores, the ceramic filter uses ceramic plates as the filter medium and achieves solid-liquid separation through vacuum pressure difference. It is a commonly used solid-liquid separation device in mineral processing dewatering systems. During operation, the ceramic filter is easily clogged by fine particles, leading to scaling and low dewatering efficiency and short lifespan of the ceramic plates. Therefore, after 4-8 hours of cumulative operation, the ceramic plates need to be cleaned using nitric acid + backwash water + ultrasonic cleaning. The current cleaning process for the ceramic filter is as follows: 60% concentrated nitric acid storage tank → magnetic acid pump → acid mixing system (metering small acid tank + circulating water → dilution acid tank (mixed concentration 2%) → backwash acid pump → 10 ceramic filter distribution heads → ceramic plates → dilute nitric acid + ultrasonic cleaning → ceramic plate acid washing.

[0003] The cleaning process requires manual dilution of concentrated acid, but the following problems exist in the actual acid preparation:

[0004] 1. During manual dilution, only one acid tank is configured on site. In order to ensure continuous production of ten ceramic machines, there is a situation where dilution is carried out while the tank is in use. If the nitric acid in the dilution tank is not used up, it will be diluted again. This leads to inaccurate nitric acid dilution ratio and unstable concentration, which cannot effectively guarantee the pickling effect of ceramic plates. This in turn affects the filtration efficiency of the ceramic machines when they are used later. At the same time, the ceramic plates are under heavy load during the filtration process, which can easily cause damage to the ceramic machines.

[0005] 2. The original acid mixing tank was rudimentary. During the dilution process, there was no stirring device, which resulted in uneven mixing of nitric acid and water and large fluctuations in nitric acid concentration. When the concentration was insufficient, it would also affect the cleaning effect of the ceramic plates. In addition, the original acid mixing equipment had a low degree of automation, and the entire operation process required manual operation, which was labor-intensive. Summary of the Invention

[0006] To address the shortcomings of the aforementioned acid mixing methods, such as inaccurate dilution ratios, difficulty in uniformly mixing nitric acid and water during dilution, and high labor intensity of manual acid mixing operations, this invention provides an automatic acid mixing device using a ceramic machine that facilitates acid mixing operations, ensures accurate acid dilution ratios, and allows for thorough mixing of nitric acid and water.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] An automatic acid mixing device for a ceramic machine includes a support frame, a concentrated acid tank, an acid mixing tank, an acid storage tank, and a stirring assembly. The acid mixing tank is fixedly installed on the top of the support frame, and the acid storage tank is installed on the side. The concentrated acid tank is installed on top of the acid mixing tank. A water inlet pipe with a switch valve is provided on the upper side of one side of the concentrated acid tank, and a pipe connecting to the top of the acid storage tank is provided on the lower side of the other side. The stirring assembly is installed inside the tank, and the pipe is also equipped with a switch A. The concentrated acid tank is also equipped with an acid inlet pipe on the top and a drain pipe at the bottom, which connects to the top of the acid mixing tank. The acid inlet pipe and the drain pipe are respectively equipped with switches B and C. A backwash pump is provided on the side of the acid storage tank.

[0009] Furthermore, the main body of the stirring assembly is an exhaust pipe, which is located in the acid mixing tank. The bottom of the exhaust pipe is an outlet facing the bottom plate of the tank, and the top extends outwards from the acid mixing tank. A pneumatic valve is installed near the top of the exhaust pipe. The top of the exhaust pipe is connected to the plant's compressed gas pipeline. During acid mixing and stirring, the pneumatic valve is opened, and compressed gas enters the acid mixing tank along the exhaust pipe and is sprayed out through the exhaust port facing the bottom plate of the acid mixing tank, thereby agitating the liquid inside the tank and ensuring that nitric acid and water are evenly mixed. Stirring can be started or stopped simply by controlling the pneumatic valve, resulting in a high level of automation and convenient operation. Furthermore, the design of using the exhaust pipe as a stirring device not only saves space and effectively avoids the acid corrosion problems of traditional mechanical stirring equipment, but also reduces energy consumption, lowers operating costs, and enhances safety.

[0010] Furthermore, a level gauge is installed on the side of the concentrated acid tank, which is connected to the tank to observe the liquid level. A radar level gauge A is installed on the top of the acid mixing tank to observe the liquid level. The presence of the level gauge and radar level gauge A ensures accurate control of the amount of concentrated acid and water added during acid mixing, avoiding errors in the ratio due to over- or under-addition, guaranteeing the accuracy of the dilute nitric acid concentration, and facilitating subsequent cleaning of the ceramic plates.

[0011] Furthermore, a radar level gauge B is also installed on the top of the acid storage tank. The radar level gauge B is used to detect the liquid level in the storage tank. The radar level gauge B detects the liquid level in the storage tank, which facilitates quick viewing of the liquid level in the storage tank during the use of the ceramic machine, and allows for timely acid preparation when the remaining liquid in the storage tank is insufficient.

[0012] Furthermore, the level gauge is a flap level gauge or a float level gauge.

[0013] Furthermore, switches A, B, and C are all pneumatic valves; the bracket is also equipped with a controller electrically connected to switches A, B, and C. The use of pneumatic valves in switches A, B, and C, controlled by the controller, enables efficient and convenient control, optimizes acid mixing operations, and allows for rapid response to commands, achieving quick opening and closing and precise control to ensure uniform mixing of nitric acid and water. In addition, pneumatic valves have a simple structure and low failure rate, and compared to electric or other power-driven methods, they reduce energy consumption and lower operating costs.

[0014] Furthermore, switches A, B, and C are all solenoid valves; the bracket is also equipped with a controller electrically connected to switches A, B, and C. The controller enhances the system's flexibility and programmability, allowing for the preset of multiple operating modes according to different acid preparation requirements, thus optimizing the acid preparation process. In addition, the low power consumption and quiet operation of the solenoid valves reduce energy consumption and noise pollution, providing a better working environment, reducing the need for manual intervention, and decreasing the probability of errors.

[0015] How to use:

[0016] First, connect the inlet pipe to the factory's water supply line, and connect the inlet pipe of the concentrated acid tank to the factory's nitric acid room. The outlet of the backwash pump is connected to several ceramic machines through pipes. When acid needs to be prepared, open the switch valve and switch B respectively. After the switch valve is opened, water enters the acid preparation tank. When the water reaches the required level, close the switch valve. When switch B is opened, the nitric acid room delivers 60% concentrated nitric acid to the concentrated acid tank. After the concentrated acid tank is full, close switch B. Then open switch A, and the concentrated nitric acid enters the acid preparation tank through the drain pipe. After the acid addition is complete, turn on the stirring component. The stirring component will continuously stir for 5 minutes to fully mix the water and nitric acid in the acid preparation tank. Turn off the stirring component. The acid preparation is complete. Then open switch C on the drain pipe. The prepared dilute nitric acid will automatically flow into the acid storage tank. Then turn on the backwash pump to supply acid to several ceramic machines for acid washing operations.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. The stirring component of this utility model achieves thorough mixing, avoiding the impact of concentration fluctuations on the cleaning effect; at the same time, automated operation significantly reduces reliance on manual labor and labor intensity, reduces the risk of operational errors caused by human factors, and allows continuous production and acid preparation operations to be carried out simultaneously, optimizing the production process and ensuring production continuity; in addition, the improved acid preparation process helps to reduce scaling and clogging of ceramic plates, maintain good working condition of the equipment, extend its service life and reduce maintenance costs.

[0019] 2. The stirring assembly consisting of the vent pipe and the pneumatic valve of this utility model can be started or stopped by controlling the pneumatic valve alone. It has a high level of automation and is easy to operate. Furthermore, the design of using the vent pipe as a stirring device not only saves space and effectively avoids the acid corrosion problem of traditional mechanical stirring equipment, but also reduces energy consumption and operating costs, and enhances safety. The setting of the level gauge and radar level gauge A ensures that the amount of concentrated acid and water added can be accurately controlled during the acid preparation process, avoiding the ratio error caused by over- or under-addition, and ensuring the accuracy of the dilute nitric acid concentration.

[0020] 3. The radar level gauge B of this utility model detects the liquid level in the storage tank, facilitating quick monitoring of the acid storage tank level during the use of the ceramic machine. It allows for timely acid preparation when the remaining acid in the storage tank is insufficient. Switches A, B, and C all employ pneumatic or solenoid valves and are controlled by a controller, enabling efficient and convenient control. This optimizes the acid preparation process. The pneumatic valves respond quickly to commands, achieving rapid opening and closing and precise control, ensuring uniform mixing of nitric acid and water and improving the acid preparation effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an automatic acid mixing device for ceramic machines.

[0022] Attached image labels:

[0023] Concentrated acid tank—1, switch B—2, level gauge—3, switch C—4, acid mixing tank—5, switch valve—6, radar level gauge A—7, vent pipe—8, pneumatic valve—9, bracket—10, switch A—11, acid storage tank—12, radar level gauge B—13, backwash pump—14. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1: An automatic acid mixing device for a ceramic machine includes a support 10, a concentrated acid tank 1, an acid mixing tank 5, an acid storage tank 12, and a stirring assembly; the acid mixing tank 5 is fixedly installed on the top of the support 10, and the acid storage tank 12 is installed on the side; the concentrated acid tank 1 is installed on the top of the acid mixing tank 5, and an inlet pipe with a switch valve 6 is provided on the upper side of one side of the concentrated acid tank 1, and a pipe connecting to the top of the acid storage tank 12 is provided on the lower side of the other side. The stirring assembly is installed inside the tank, and a switch A11 is also provided on the pipe; the concentrated acid tank 1 also has an acid inlet pipe at the top and a drain pipe at the bottom, and the drain pipe connects to the top of the acid mixing tank 5. The acid inlet pipe and the drain pipe are respectively equipped with a switch B2 and a switch C4; a backwash pump 14 is provided on the side of the acid storage tank.

[0026] First, connect the inlet pipe to the factory's water supply line, and connect the inlet pipe of the concentrated acid tank 1 to the factory's nitric acid room. The outlet of the backwash pump 14 is connected to several ceramic machines through pipes. When acid needs to be prepared, open switch valve 6 and switch B2 respectively. After switch valve 6 is opened, water enters the acid preparation tank 5. When the water reaches the required level, close switch valve 6. When switch B2 is opened, the nitric acid room delivers 60% concentrated nitric acid to the concentrated acid tank 1. After the concentrated acid tank 1 is full, close switch B2. Then open switch C4, and the concentrated nitric acid enters the acid preparation tank 5 through the drain pipe. After the acid addition is completed, turn on the stirring component. The stirring component will continue to stir for 5 minutes to fully mix the water and nitric acid in the acid preparation tank 5. Turn off the stirring component. The acid preparation is complete. Then open switch A11 on the drain pipe. The prepared dilute nitric acid will automatically flow into the acid storage tank 12. Then turn on the backwash pump to supply acid to several ceramic machines for acid washing operations.

[0027] Example 2: The difference from Example 1 is that the main body of the stirring assembly is an exhaust pipe 8, which is located in the acid mixing tank 5. The bottom of the exhaust pipe is an outlet facing the bottom plate of the tank, and the top extends outwards through the acid mixing tank 5. A pneumatic valve 9 is located near the top of the exhaust pipe 8. The top of the exhaust pipe 8 is connected to the factory's compressed gas pipeline. During acid mixing and stirring, the pneumatic valve 9 is opened, and compressed gas enters the acid mixing tank 5 along the exhaust pipe 8 and is sprayed out through the exhaust port facing the bottom plate of the acid mixing tank 5, thereby agitating the liquid inside the acid mixing tank 5 and ensuring that nitric acid and water are evenly mixed. Stirring can be started or stopped simply by controlling the pneumatic valve 9, resulting in a high level of automation and convenient operation. Furthermore, the design of using the exhaust pipe 8 as a stirring device not only saves space and effectively avoids the acid corrosion problems of traditional mechanical stirring equipment, but also reduces energy consumption, lowers operating costs, and enhances safety.

[0028] The concentrated acid tank 1 is also equipped with a level gauge 3 on its side, which is connected to the concentrated acid tank 1 and used to observe the liquid level inside the concentrated acid tank 1. The top of the acid mixing tank 5 is equipped with a radar level gauge A7 for observing the liquid level in the acid mixing tank 5. The installation of level gauge 3 and radar level gauge A7 ensures that the amount of concentrated acid and water added can be accurately controlled during the acid mixing process, avoiding mixing errors caused by over- or under-addition, ensuring the accuracy of the dilute nitric acid concentration, and facilitating the subsequent cleaning of the ceramic plates.

[0029] For example, 60% concentrated nitric acid can be diluted to prepare 2% dilute nitric acid by using level gauge 3 in conjunction with radar level gauge A7. The specific operation is as follows: Open switch valve 6 and switch B2 respectively. After switch valve 6 is opened, water enters the acid mixing tank 5. Check the radar level gauge A. When the water level inside the acid mixing tank 5 reaches two-thirds of the tank, close switch valve 6. When switch B2 is opened, the nitric acid chamber delivers 60% concentrated nitric acid to the concentrated acid tank 1. After the concentrated acid tank 1 is full, close switch B2. Then open switch C4, and the concentrated nitric acid enters the acid mixing tank 5 through the drain pipe. Observe level gauge 3. When the liquid level in the concentrated acid tank 1 reaches one-half, close switch C4. Then turn on the stirring assembly to stir and complete the acid mixing operation.

[0030] Example 3: The difference from Example 2 is that the level gauge 3 is a flap level gauge; a radar level gauge B13 is also installed on the top of the acid storage tank 12. The radar level gauge B13 is used to detect the liquid level in the storage tank. The radar level gauge B13 detects the liquid level in the storage tank, facilitating quick monitoring of the liquid level in the acid storage tank 12 during the use of the ceramic machine, and allowing for timely acid preparation when the remaining liquid in the acid storage tank 12 is insufficient.

[0031] Switches A11, B2, and C4 all employ pneumatic valves 9. The bracket 10 also houses a controller electrically connected to switches A11, B2, and C4. The use of pneumatic valves 9 for switches A11, B2, and C, controlled by the controller, enables efficient and convenient control, optimizes acid mixing operations, and allows for rapid response to commands, achieving quick opening and closing and precise control to ensure uniform mixing of nitric acid and water. Furthermore, the pneumatic valves 9 have a simple structure, low failure rate, and compared to electric or other power-driven methods, reduce energy consumption and lower operating costs.

[0032] Example 4: The difference from Example 2 is that the level gauge 3 is a float level gauge 3;

[0033] The switches A11, B2, and C4 are all solenoid valves; the bracket 10 is also equipped with a controller electrically connected to switches A11, B2, and C4. The controller enhances the system's flexibility and programmability, allowing multiple operating modes to be preset according to different acid preparation requirements, thus optimizing the acid preparation process. In addition, the low power consumption and quiet operation of the solenoid valves reduce energy consumption and noise pollution, providing a better working environment, reducing the need for manual intervention, and decreasing the probability of errors.

[0034] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A ceramic machine automatic acid dispensing device, characterized in that: Including support (10), concentrated acid tank (1), acid tank (5), acid storage tank (12) and stirring assembly;The top of the support (10) is fixedly installed with acid tank (5), and the side is installed with acid storage tank (12);The top of the acid tank (5) is installed with concentrated acid tank (1), the upper side of the concentrated acid tank (1) is provided with a water inlet pipe with a switch valve (6), the other side is provided with a pipe communicating with the top of the acid storage tank (12), and the stirring assembly is installed in the tank body, wherein the pipe is also provided with switch A (11);The top of the concentrated acid tank (1) is also provided with an acid inlet pipe, and the bottom is provided with a liquid discharge pipe, which communicates with the top of the acid tank (5), and the acid inlet pipe and the liquid discharge pipe are respectively provided with switch B (2) and switch C (4);The side of the acid storage tank is provided with a backflushing pump (14).

2. The ceramic machine automatic acid dispensing device of claim 1, wherein: The main body of the stirring assembly is the air outlet pipe (8), which is arranged in the acid tank (5), the bottom is the air outlet opposite to the bottom plate of the tank body, the top extends out of the acid tank (5) and the air outlet pipe (8) is provided with a pneumatic valve (9) near the top.

3. The ceramic machine automatic acid dispensing device of claim 1, wherein: The side of the concentrated acid tank (1) is also provided with a liquid level meter (3), which communicates with the concentrated acid tank (1) and is used for observing the liquid level in the concentrated acid tank (1);The top of the acid tank (5) is provided with radar liquid level meter A (7), which is used for observing the liquid level of the acid tank (5).

4. The ceramic machine automatic acid dispensing device of claim 3, wherein: The top of the acid storage tank (12) is also provided with a radar liquid level meter B (13), which is used for detecting the liquid level in the liquid storage tank.

5. The ceramic machine automatic acid dispensing device of claim 3, wherein: The liquid level meter (3) is a flap liquid level meter or a float liquid level meter (3).

6. A device for automatic acid dispensing in a ceramic machine as claimed in any one of claims 1 to 5, characterized in that: The switch A (11), switch B (2) and switch C (4) all adopt pneumatic valve (9);The support (10) is also provided with a controller electrically connected with switch A (11), switch B (2) and switch C (4).

7. A device for automatic acid dispensing in a ceramic machine as claimed in any one of claims 1 to 5, characterized in that: The switch A (11), switch B (2) and switch C (4) all adopt electromagnetic valve;The support (10) is also provided with a controller electrically connected with switch A (11), switch B (2) and switch C (4).

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