Cleaning device for sulfuric acid storage tank

Abstract

The utility model discloses a cleaning device for a sulfuric acid storage tank, which belongs to the technical field of cleaning of the sulfuric acid storage tank and comprises a foundation plate, the sulfuric acid storage tank is fixedly connected onto the foundation plate, one side of the sulfuric acid storage tank is respectively provided with a first circulating pipe orifice and a second circulating pipe orifice, and a mixing, stirring and impurity removing mechanism is arranged in the sulfuric acid storage tank. According to the utility model, the planetary gear set is arranged, through the matching of the main gear and the auxiliary gear, the stirring blades can be driven to ensure that the neutralization reaction is sufficient, and the arc-shaped scraping plate and the matched scraping plate can be driven, so that the side wall and the inner bottom of the sulfuric acid storage tank can be cleaned; the concentration of the alkali washing liquid in the alkali washing tank can be determined by detecting the reaction temperature in the sulfuric acid storage tank, and when the concentration of the alkali washing liquid is too high and the temperature in the sulfuric acid storage tank is too high, the electromagnetic valve can be opened, so that water is added into the alkali washing tank for dilution, the reaction rate is reduced, and dangers are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning technology for sulfuric acid storage tanks, specifically a cleaning device for sulfuric acid storage tanks. Background Technology

[0002] Sulfuric acid storage tanks are specialized tanks used in the chemical and other industries to store sulfuric acid. These tanks are typically made of corrosion-resistant materials, such as fiberglass or stainless steel, to withstand the strong corrosiveness and oxidizing properties of sulfuric acid. Fiberglass sulfuric acid storage tanks are manufactured using a winding process involving materials such as glass fiber and resin, offering advantages such as corrosion resistance, high pressure resistance, high strength, light weight, good temperature stability, and long service life. However, after prolonged use, acid sludge and impurities accumulate inside the tanks, affecting their usability. Therefore, it is essential to develop a cleaning device specifically for sulfuric acid storage tanks.

[0003] According to a search, patent document CN217393248U discloses a cleaning device for a sulfuric acid storage tank, including a cleaning frame with a cleaning passage in the middle. A vertical telescopic mechanism is installed on the top surface of the cleaning frame, and a cleaning vertical pipe is installed on the vertical telescopic mechanism, passing through the cleaning frame and extending into the cleaning passage. A cleaning channel is opened in the cleaning vertical pipe along its length. A cleaning cylinder is installed at the lower part of the cleaning vertical pipe, and multiple cleaning holes communicating with the cleaning channel are opened in the lower part of the cleaning vertical pipe along its length. Multiple cleaning grooves communicating with the cleaning holes are opened in the cleaning cylinder.

[0004] The aforementioned comparative documents also have the following shortcomings: existing cleaning devices for sulfuric acid storage tanks neglect the acid sludge accumulated at the bottom of the tanks. Furthermore, when performing alkaline cleaning on sulfuric acid storage tanks, the concentration of the alkaline cleaning solution must be strictly controlled to prevent the alkaline cleaning solution from reacting too violently with the acid, which could lead to explosive boiling. The aforementioned comparative documents did not take this into account. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a cleaning device for sulfuric acid storage tanks, which solves the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for a sulfuric acid storage tank, comprising:

[0007] A base plate is provided, on which a sulfuric acid storage tank is fixedly connected. A first flow port and a second flow port are respectively opened on one side of the sulfuric acid storage tank. A mixing, stirring and impurity removal mechanism is provided inside the sulfuric acid storage tank.

[0008] An alkaline washing tank is fixedly connected to a base plate. The top of the alkaline washing tank has a water inlet, and a solenoid valve is installed on the water inlet. The side of the alkaline washing tank has a water outlet, which is connected to the No. 2 flow pipe on the corresponding side.

[0009] As a further embodiment of this utility model: the mixing and stirring impurity removal mechanism includes a three-phase plate fixedly connected to the top of the sulfuric acid storage tank. The bottom of the three-phase plate is rotatably connected to a main gear and three auxiliary gears, and the three auxiliary gears mesh with the main gear. An internal gear ring is rotatably connected to the inner wall of the sulfuric acid storage tank, and the internal gear ring meshes with the auxiliary gears.

[0010] As a further embodiment of this utility model: a drive motor is fixedly connected to the top of the sulfuric acid storage tank, and the output end of the drive motor passes through the sulfuric acid storage tank and the three-phase plate and is fixedly connected to the main gear on the same axis.

[0011] As a further embodiment of this utility model: the main gear is coaxially fixedly connected to a limiting shaft, the limiting shaft is coaxially fixedly connected to a stirring blade, and a temperature sensor is provided inside the limiting shaft.

[0012] As a further embodiment of this utility model: three arc-shaped scrapers are fixedly connected to the bottom of the internal toothed ring, the three arc-shaped scrapers are closely attached to the inner wall of the sulfuric acid storage tank, and a matching scraper is fixedly connected to the bottom of the arc-shaped scraper, the matching scraper being closely attached to the bottom of the sulfuric acid storage tank.

[0013] As a further embodiment of this utility model: a control box is fixedly connected to the alkaline washing tank, and a detection module and a control module are provided in the control box. The detection module is signal-connected to the control module, the detection module is signal-connected to the temperature sensor, and the control module is signal-connected to the solenoid valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model is equipped with a planetary gear set. Through the cooperation of the main gear and the auxiliary gear, it can drive the stirring blades to ensure the neutralization reaction is complete, and also drive the arc-shaped scraper and the matching scraper to clean the side wall and inner bottom of the sulfuric acid storage tank.

[0016] 2. This utility model, by setting a temperature sensor, a control box, and a solenoid valve, can determine the concentration of alkaline washing solution in the alkaline washing tank by detecting the reaction temperature inside the sulfuric acid storage tank. When the concentration of alkaline washing solution is too high or the temperature inside the sulfuric acid storage tank is too high, the solenoid valve can be opened, thereby adding water to the alkaline washing tank for dilution, thereby reducing the reaction rate and avoiding danger. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the sulfuric acid storage tank of this utility model;

[0019] Figure 3 This is a three-dimensional internal structure diagram of the sulfuric acid storage tank of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the main gear, auxiliary gear, and internal gear ring of this utility model.

[0021] In the diagram: 1. Base plate, 2. Sulfuric acid storage tank, 3. No. 1 flow port, 4. No. 2 flow port, 5. Alkali washing tank, 6. Solenoid valve, 7. Three-phase plate, 8. Main gear, 9. Secondary gear, 10. Internal gear ring, 11. Drive motor, 12. Limiting shaft, 13. Stirring blade, 14. Arc scraper, 15. Control box. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] like Figures 1-4 As shown, this utility model provides a technical solution:

[0024] A base plate 1 is fixedly connected to a sulfuric acid storage tank 2. A first flow port 3 and a second flow port 4 are respectively opened on one side of the sulfuric acid storage tank 2. A mixing, stirring and impurity removal mechanism is installed inside the sulfuric acid storage tank 2.

[0025] Specifically, the No. 1 flow port 3 and the No. 2 flow port 4 on the sulfuric acid storage tank 2 serve as the basic inlet and outlet ports of the sulfuric acid storage tank 2.

[0026] Alkaline washing tank 5 is fixedly connected to the base plate 1. The top of the alkaline washing tank 5 is provided with a water inlet, and a solenoid valve 6 is provided on the water inlet. The side of the alkaline washing tank 5 is provided with a water outlet, which is connected to the No. 2 flow pipe 4 on the corresponding side.

[0027] Specifically, in order to neutralize the sulfuric acid liquid in sulfuric acid storage tank 2, sulfuric acid storage tank 2 needs to be alkaline washed. Alkaline washing tank 5 stores a large amount of alkaline solution. The water inlet on alkaline washing tank 5 is connected to an external water source. Solenoid valve 6 controls the opening and closing of the water inlet. Alkaline washing tank 5 is connected to sulfuric acid storage tank 2 through water outlet.

[0028] The mixing and impurity removal mechanism includes a three-phase plate 7 fixedly connected to the top of the sulfuric acid storage tank 2. A main gear 8 and three auxiliary gears 9 are rotatably connected to the bottom of the three-phase plate 7, and the three auxiliary gears 9 mesh with the main gear 8. An internal gear ring 10 is rotatably connected to the inner wall of the sulfuric acid storage tank 2, and the internal gear ring 10 meshes with the auxiliary gears 9. A drive motor 11 is fixedly connected to the top of the sulfuric acid storage tank 2. The output end of the drive motor 11 passes through the sulfuric acid storage tank 2 and the three-phase plate 7 and is coaxially fixedly connected to the main gear 8. A limit shaft 12 is coaxially fixedly connected to the main gear 8. A stirring blade 13 is coaxially fixedly connected to the limit shaft 12. A temperature sensor is installed inside the limit shaft 12. Three arc-shaped scrapers 14 are fixedly connected to the bottom of the internal gear ring 10. The three arc-shaped scrapers 14 are in close contact with the inner wall of the sulfuric acid storage tank 2. A matching scraper is fixedly connected to the bottom of the arc-shaped scraper 14, and the matching scraper is in close contact with the bottom of the sulfuric acid storage tank 2.

[0029] Specifically, the mixing and stirring impurity removal mechanism is used to remove the small amount of acid sludge and impurities attached to the side wall of the sulfuric acid storage tank 2, break up the stubborn acid sludge attached to the bottom of the sulfuric acid storage tank 2, and assist in alkaline washing. When the drive motor 11 starts, the main gear 8, which is fixedly connected to it on the same axis, can rotate, and the auxiliary gear 9 meshing with it can rotate. Through the connection of the auxiliary gear 9, the internal gear ring 10 can drive the three arc-shaped scrapers 14 to rotate. The arc-shaped scrapers 14 and the matching scrapers can remove the acid sludge and impurities in the sulfuric acid storage tank 2. At the same time, the stirring blades 13 rotate with the rotation of the main gear 8, thereby stirring the mixed liquid of acid and alkali, so that the reaction is more complete.

[0030] A control box 15 is fixedly connected to the alkaline washing tank 5. The control box 15 contains a detection module and a control module. The detection module is connected to the control module by signal, the detection module is connected to the temperature sensor by signal, and the control module is connected to the solenoid valve 6 by signal.

[0031] Specifically, alkaline washing tank 5 contains alkaline washing solution. During use, a valve needs to be installed on the second outlet pipe for control. The alkaline washing solution in tank 5 can then enter the sulfuric acid storage tank 2 through the outlet. The alkaline washing solution and sulfuric acid will undergo a neutralization reaction, generating a large amount of heat. The reaction rate and extent can be determined based on the temperature inside the sulfuric acid storage tank 2. To prevent an excessively strong reaction that could lead to an explosion, the concentration of the alkaline washing solution needs to be controlled. A temperature sensor monitors the temperature inside the sulfuric acid storage tank 2. When the temperature is too high and exceeds the preset value of the temperature sensor, the temperature sensor transmits a signal to the detection module inside the control box 15. The control module inside the control box 15 then transmits the signal to the solenoid valve 6, which opens, allowing water to be poured into the alkaline washing tank 5, thereby diluting the solution inside and reducing the reaction rate.

[0032] The working principle of this utility model is as follows:

[0033] The No. 1 flow port 3 and No. 2 flow port 4 on the sulfuric acid storage tank 2 serve as the basic inlet and outlet ports of the sulfuric acid storage tank 2. In order to neutralize the sulfuric acid liquid in the sulfuric acid storage tank 2, the sulfuric acid storage tank 2 needs to be alkaline washed. The alkaline washing tank 5 stores a large amount of alkaline solution. The water inlet on the alkaline washing tank 5 is connected to an external water source. The solenoid valve 6 controls the opening and closing of the water inlet. The alkaline washing tank 5 is connected to the sulfuric acid storage tank 2 through the water outlet.

[0034] The mixing and stirring impurity removal mechanism is used to remove the small amount of acid sludge and impurities attached to the side wall of the sulfuric acid storage tank 2, break up the stubborn acid sludge attached to the bottom of the sulfuric acid storage tank 2, and assist in alkaline washing. When the drive motor 11 is started, the main gear 8, which is fixedly connected to it on the same shaft, can rotate. The secondary gear 9 meshing with it can also rotate. Through the connection of the secondary gear 9, the internal gear ring 10 can drive the three arc-shaped scrapers 14 to rotate. The arc-shaped scrapers 14 and the matching scrapers can remove the acid sludge and impurities in the sulfuric acid storage tank 2. At the same time, the stirring blades 13 rotate with the rotation of the main gear 8, thereby stirring the mixture of acid and alkali liquid to make the reaction more complete.

[0035] Alkaline washing tank 5 contains alkaline washing solution. During use, a valve needs to be installed on the No. 2 outlet pipe for control. The alkaline washing solution in tank 5 can then enter the sulfuric acid storage tank 2 through the outlet. The alkaline washing solution and sulfuric acid will undergo a neutralization reaction, generating a large amount of heat. The reaction rate and extent can be determined based on the temperature inside the sulfuric acid storage tank 2. To prevent an excessively strong reaction that could lead to an explosion, the concentration of the alkaline washing solution needs to be controlled. A temperature sensor monitors the temperature inside the sulfuric acid storage tank 2. When the temperature is too high and exceeds the preset value of the temperature sensor, the temperature sensor transmits a signal to the detection module inside the control box 15. The control module inside the control box 15 then transmits the signal to the solenoid valve 6, which opens, allowing water to be poured into the alkaline washing tank 5, thereby diluting the solution inside and reducing the reaction rate.

[0036] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A cleaning device for a sulfuric acid storage tank, characterized in that, include: A base plate (1) is fixedly connected to a sulfuric acid storage tank (2). A first flow port (3) and a second flow port (4) are respectively opened on one side of the sulfuric acid storage tank (2). A mixing and stirring impurity removal mechanism is provided inside the sulfuric acid storage tank (2). Alkali washing tank (5) is fixedly connected to the base plate (1). The top of the alkali washing tank (5) is provided with a water inlet and a solenoid valve (6) is provided on the water inlet. The side of the alkali washing tank (5) is provided with a water outlet and the water outlet is connected to the No. 2 flow pipe (4) on the corresponding side.

2. The cleaning device for a sulfuric acid storage tank according to claim 1, characterized in that: The mixing and impurity removal mechanism includes a three-phase plate (7) fixedly connected to the top of the sulfuric acid storage tank (2). The bottom of the three-phase plate (7) is rotatably connected to a main gear (8) and three auxiliary gears (9). All three auxiliary gears (9) mesh with the main gear (8). An internal gear ring (10) is rotatably connected to the inner wall of the sulfuric acid storage tank (2). The internal gear ring (10) meshes with the auxiliary gears (9).

3. The cleaning device for a sulfuric acid storage tank according to claim 2, characterized in that: A drive motor (11) is fixedly connected to the top of the sulfuric acid storage tank (2). The output end of the drive motor (11) passes through the sulfuric acid storage tank (2) and the three-phase plate (7) and is fixedly connected to the main gear (8) on the same axis.

4. The cleaning device for a sulfuric acid storage tank according to claim 3, characterized in that: The main gear (8) is coaxially fixedly connected to a limiting shaft (12), and the limiting shaft (12) is coaxially fixedly connected to a stirring blade (13). A temperature sensor is installed inside the limiting shaft (12).

5. A cleaning device for a sulfuric acid storage tank according to claim 4, characterized in that: The bottom of the internal toothed ring (10) is fixedly connected to three arc-shaped scrapers (14), which are closely attached to the inner wall of the sulfuric acid storage tank (2). The bottom of the arc-shaped scrapers (14) is fixedly connected to a matching scraper, which is closely attached to the bottom of the sulfuric acid storage tank (2).

6. The cleaning device for a sulfuric acid storage tank according to claim 5, characterized in that: A control box (15) is fixedly connected to the alkaline washing tank (5). The control box (15) is equipped with a detection module and a control module. The detection module is connected to the control module by signal, the detection module is connected to the temperature sensor by signal, and the control module is connected to the solenoid valve (6) by signal.

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