Dilute sulfuric acid preparation device

Abstract

The utility model discloses a device for preparing dilute sulphuric acid, which belongs to the field of chemical equipment and comprises a water tank, a tank body and a driving part, a water inlet and a water outlet are respectively arranged on two opposite sides of the water tank, the tank body is erected right above the water tank, a through hole is arranged at one end of the tank body, and the through hole is used for feeding raw materials required for preparing the dilute sulphuric acid. The other end of the tank body is connected with the driving part, concentrated sulfuric acid can release much heat in the diluting process, the heat is transmitted to the side wall of the tank body and makes contact with cooling water through the side, facing the cooling water, of the tank body, so that the heat is taken away by the cooling water, and then the tank body is driven to rotate through the driving part, so that the side wall of the tank body makes contact with the cooling water in sequence; therefore, the aim of uniformly cooling the side wall of the tank body by cooling water is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a device for preparing dilute sulfuric acid. Background Art

[0002] Sulfuric acid is an important basic chemical raw material and is widely used in the chemical, steel and other industries. Sulfuric acid of different concentrations is used in different scenarios. The current dilute sulfuric acid preparation device usually manually adds concentrated sulfuric acid and water into the preparation tank, and then stirs to achieve the dilution effect. For example, the authorization announcement number is CN206045859U, and the name is a device for preparing dilute sulfuric acid from concentrated sulfuric acid, including a tank body and a stirring device. A concentrated sulfuric acid inlet pipe and a water inlet pipe are provided at the upper end of the tank body, and a dilute sulfuric acid outlet pipe is provided at the lower end of the tank body. The stirring device includes a motor, a transmission shaft connected to the motor, and a paddle arranged on the transmission shaft. The paddle is located in the tank body, and a coil is provided around the tank body. The coil is provided with a condensate inlet and a condensate outlet. Concentrated sulfuric acid flows into the tank body from the concentrated sulfuric acid inlet pipe, and water enters the tank body from the water inlet pipe. The stirring device stirs to mix the two evenly. Condensed water passes through the coil to take away the heat released during the dilution of the concentrated sulfuric acid to prevent the temperature in the tank body from being too high and causing damage to the equipment.

[0003] However, the coil has an aging problem, and the cost of maintaining or replacing the coil is high. At the same time, when maintaining or replacing the coil, the device needs to stop working, which will reduce the production efficiency of dilute sulfuric acid. Utility Model Content

[0004] In view of this, it is necessary to provide a device for preparing dilute sulfuric acid to solve the technical problem of high cost in maintaining or replacing coils in the prior art.

[0005] The utility model provides a device for preparing dilute sulfuric acid, comprising a water tank, a tank body and a driving part;

[0006] The water tank has a water inlet and a water outlet on opposite sides thereof, and the tank is mounted directly above the water tank;

[0007] The tank body has a cavity inside, and the cavity is used to place raw materials required for preparing dilute sulfuric acid. A through hole is opened at one end of the tank body, and the other end of the tank body is connected to the driving member. The driving member is used to drive the tank body to rotate and ensure that one side of the outer wall of the tank body is always located in the notch of the water tank.

[0008] In one of the embodiments, the through hole is provided with a conical tube, an end of the conical tube with a larger inner diameter is fixedly connected to the inner wall of the through hole, and an end of the conical tube with a smaller inner diameter extends in a direction away from the through hole.

[0009] In one embodiment, a water inlet pipe is provided in the conical tube, and the water inlet pipe is sleeved in the conical tube.

[0010] In one embodiment, the water inlet pipe is higher than the liquid level of dilute sulfuric acid.

[0011] In one embodiment, an acid inlet pipe is provided in the conical tube, and the acid inlet pipe is sleeved in the conical tube.

[0012] In one embodiment, the acid inlet tube is inserted into dilute sulfuric acid.

[0013] In one of the embodiments, the water inlet and the water outlet are provided with guide walls.

[0014] In one of the embodiments, a plurality of heat sinks are distributed around the outer wall of the tank.

[0015] In one embodiment, a protrusion is fixedly connected to the inner wall of the tank.

[0016] In one of the embodiments, a hinged frame is fixedly mounted on the top of the water tank, and one end of the tank body facing away from the driving member is hinged to the hinged frame.

[0017] Compared with the prior art, the device for preparing dilute sulfuric acid provided by the utility model has the following beneficial effects:

[0018] Concentrated sulfuric acid releases a lot of heat during the dilution process, and the heat is transferred to the side wall of the tank body. The side of the tank body facing the cooling water contacts the cooling water, so that the heat is taken away by the cooling water. The tank body is then driven to rotate by the driving member, so that the side wall of the tank body contacts the cooling water in turn, thereby achieving the purpose of uniformly cooling the side wall of the tank body by the cooling water.

[0019] Since the cooling water in the water tank is flowing, it can be ensured that the cooling water is at the optimal heat exchange temperature when in contact with the water tank. It can be seen that the device eliminates the use of coils and instead uses a method in which the tank body is in direct contact with the cooling water, thereby avoiding the problem of coil aging and the cost of replacing or maintaining the coils, thereby effectively saving the overall production cost. At the same time, the staff does not need to stop the preparation of dilute sulfuric acid due to replacing or maintaining the coils, thereby effectively improving the production efficiency of dilute sulfuric acid.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiments of the utility model are described in detail as follows in conjunction with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 A three-dimensional diagram of a device for preparing dilute sulfuric acid provided by the utility model;

[0023] Figure 2 A top view of a device for preparing dilute sulfuric acid provided by the utility model;

[0024] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0025] Figure 4 A top view of a tank in a device for preparing dilute sulfuric acid provided by the utility model;

[0026] Figure 5 for Figure 4 Cross-sectional view of BB.

[0027] The accompanying drawings are marked as follows: 1. water tank; 11. water inlet; 12. water outlet; 13. guide wall; 14. hinged frame; 2. tank body; 21. through hole; 22. conical tube; 23. water inlet pipe; 24. acid inlet pipe; 25. heat sink; 26. protrusion; 27. cavity; 3. driving part; 4. cooling water; 5. dilute sulfuric acid. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0029] See also Figure 1-Figure 5 The utility model provides a device for preparing dilute sulfuric acid, comprising a water tank 1, a tank body 2 and a driving member 3;

[0030] The water tank 1 has a water inlet 11 and a water outlet 12 on opposite sides thereof, and the tank body 2 is mounted directly above the water tank 1;

[0031] The tank body 2 has a cavity 27 inside, and the cavity 27 is used to place the raw materials required for preparing the dilute sulfuric acid 5. A through hole 21 is opened at one end of the tank body 2, and the other end of the tank body 2 is connected to the driving member 3. The driving member 3 is used to drive the tank body 2 to rotate and make one side of the outer wall of the tank body 2 always located in the notch of the water tank 1.

[0032] Specifically, concentrated sulfuric acid releases a lot of heat during the dilution process, and the heat is transferred to the side wall of the tank body 2, and the side of the tank body 2 facing the cooling water 4 contacts the cooling water 4, so that the heat is taken away by the cooling water 4, and then the tank body 2 is driven to rotate by the driving member 3, so that the side wall of the tank body 2 contacts the cooling water 4 in turn, and then the cooling water 4 achieves the purpose of uniformly cooling the side wall of the tank body 2;

[0033] Since the cooling water 4 in the water tank 1 is flowing, it can be ensured that the cooling water 4 is at the optimal heat exchange temperature when in contact with the water tank 1. It can be seen that the device eliminates the use of coils and instead uses a method in which the tank body 2 is in direct contact with the cooling water 4, thereby avoiding the problem of coil aging and the cost of replacing or maintaining the coils, thereby effectively saving the overall production cost. At the same time, there is no need for staff to stop preparing dilute sulfuric acid 5 due to replacing or maintaining the coils, thereby effectively improving the production efficiency of dilute sulfuric acid 5.

[0034] First, a certain amount of concentrated sulfuric acid is added into the cavity 27 through the through hole 21, and then water is slowly added into the cavity 27 through the through hole 21. During the process of adding water, the driving member 3 is started, and the driving member 3 causes the tank body 2 to rotate, so that the outer wall of the tank body 2 contacts the cooling water 4 in turn, and the heat of the tank body 2 is transferred to the cooling water 4, that is, the cooling of the tank body 2 is completed, and the normal operation of the dilution of sulfuric acid is guaranteed.

[0035] It should be noted that, in order to prevent the dilute sulfuric acid 5 from overflowing from the through hole 21 , the level of the liquid surface of the dilute sulfuric acid 5 cannot be higher than the level of the through hole 21 .

[0036] It should be noted that part of the cooling water 4 will be vaporized during the process of cooling the tank body 2 , making the cooling water 4 less and less. Therefore, the staff is required to replenish the cooling water 4 regularly.

[0037] Furthermore, the driving member 3 adopts a servo motor, which is used to drive the tank body 2 to rotate and can control the rotation speed of the tank body 2 so that the side walls of the tank body 2 can all contact with the cooling water 4.

[0038] Furthermore, in this embodiment, the through hole 21 is provided with a conical tube 22, the end of the conical tube 22 with a larger inner diameter is fixedly connected to the inner wall of the through hole 21, and the end of the conical tube 22 with a smaller inner diameter extends in a direction away from the through hole 21. Specifically, in the process of mixing concentrated sulfuric acid and water, the function of the conical tube 22 is to prevent the dilute sulfuric acid 5 in the tank body 2 from splashing out of the through hole 21.

[0039] Furthermore, in this embodiment, a water inlet pipe 23 is provided in the conical tube 22, and the water inlet pipe 23 is sleeved in the conical tube 22. Specifically, the function of the water inlet pipe 23 is to transport water for diluting concentrated sulfuric acid into the tank body 2, so that the concentrated sulfuric acid is converted into the required dilute sulfuric acid 5, wherein, in order to prevent the rotation of the tank body 2 from affecting the water inlet pipe 23, the water inlet pipe 23 is suspended in the conical tube 22, and the water inlet pipe 23 is fixed to the water reservoir through the water inlet end of the water inlet pipe 23.

[0040] Furthermore, in this embodiment, the water inlet pipe 23 is higher than the liquid level of the dilute sulfuric acid 5. Specifically, in order to reduce the corrosion damage of the concentrated sulfuric acid to the water inlet pipe 23, the water outlet end of the water inlet pipe 23 needs to be higher than the liquid level of the dilute sulfuric acid 5 to avoid the water inlet pipe 23 from contacting the dilute sulfuric acid 5 and affecting the service life of the water inlet pipe 23.

[0041] Further, in the present embodiment, an acid inlet pipe 24 is provided in the conical tube 22, and the acid inlet pipe 24 is sleeved in the conical tube 22. Specifically, the function of the acid inlet pipe 24 is to transport concentrated sulfuric acid into the tank body 2, and the acid inlet pipe 24 includes an inlet and an outlet. In order to prevent the rotation of the tank body 2 from affecting the acid inlet pipe 24, the acid inlet pipe 24 is suspended in the conical tube 22, and the outlet of the acid inlet pipe 24 is vertically downward and close to the inner wall of the tank body 2 to prevent the concentrated sulfuric acid from splashing when it falls from the outlet into the tank body 2. The acid inlet pipe 24 is fixedly connected to the raw material pool of concentrated sulfuric acid through the inlet.

[0042] Further, in the present embodiment, the acid inlet pipe 24 is inserted into the dilute sulfuric acid 5. Specifically, the acid inlet pipe 24 is inserted into the dilute sulfuric acid 5 to avoid splashing when adding concentrated sulfuric acid, so that the concentrated sulfuric acid is melted into the dilute sulfuric acid 5 from the bottom of the dilute sulfuric acid 5, and the liquid level of the dilute sulfuric acid 5 rises slowly without any splashing, thereby avoiding the sulfuric acid from splashing out of the through hole 21.

[0043] Furthermore, in this embodiment, the water inlet 11 and the water outlet 12 are provided with a guide wall 13. Specifically, the liquid surface width of the cooling water 4 in contact with the tank body 2 is greater than the liquid surface width of the water inlet 11 and the water outlet 12, and the function of the guide wall 13 is to guide the cooling water 4 to better converge at the water outlet 12 and discharge the used cooling water 4 faster, and when the water inlet 11 changes from a narrow liquid surface to a wide liquid surface, the flow rate of the cooling water 4 will decrease, so that the cooling water 4 fully absorbs the heat of the tank body 2, thereby allowing the tank body 2 to be fully cooled.

[0044] Furthermore, in the present embodiment, a plurality of heat sinks 25 are distributed around the outer wall of the tank body 2. Specifically, the function of the heat sink 25 is to increase the outer wall area of ​​the tank body 2. The number of the heat sink 25 is more than two, and more heat in the tank body 2 is transferred to the heat sink 25, so that the side wall of the tank body 2 can absorb more heat. The side wall of the tank body 2 and the heat sink 25 are in contact with the cooling water 4 at the same time, so that more heat is transferred to the cooling water 4, effectively alleviating the heat generated in the process of diluting the concentrated sulfuric acid, thereby improving the service life of the equipment.

[0045] Furthermore, in this embodiment, the inner wall of the tank body 2 is fixedly connected with a protrusion 26. Specifically, the function of the protrusion 26 is to increase the rate of diluting the concentrated sulfuric acid with water. The number of the protrusions 26 is more than two. The driving member 3 drives the tank body 2 to rotate, and the protrusions 26 move with the tank body 2 and stir the dilute sulfuric acid 5, which effectively improves the dilution efficiency of the concentrated sulfuric acid.

[0046] Furthermore, the rotation of the tank body 2 achieves two functions. First, the protrusion 26 improves the dilution efficiency of the concentrated sulfuric acid, and second, the cooling water 4 relieves the heat generated by diluting the concentrated sulfuric acid.

[0047] Further, in this embodiment, a hinge frame 14 is fixedly installed on the top of the water tank 1, and one end of the tank body 2 away from the driving member 3 is hinged to the hinge frame 14. Specifically, the function of the hinge frame 14 is to cooperate with the driving member 3 so that the tank body 2 is more stable during rotation.

[0048] The specific working process of the utility model is as follows: first, the cooling water 4 in the water tank 1 starts to flow; then, a certain amount of concentrated sulfuric acid is added into the tank body 2 through the acid inlet pipe 24; finally, water is slowly added into the tank body 2 using the water inlet pipe 23. During the process of adding water, the driving member 3 is started, and the driving member 3 causes the tank body 2 to rotate. On the one hand, the protrusion 26 stirs the dilute sulfuric acid 5 to make the mixing faster, and on the other hand, the outer wall of the tank body 2 is contacted with the cooling water 4 in turn, and the heat of the tank body 2 and the heat sink 25 is transferred to the cooling water 4, that is, the cooling of the tank body 2 is completed, and the normal operation of the diluted sulfuric acid is guaranteed.

[0049] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims

1. A device for preparing dilute sulfuric acid, characterized in that: Including water tank, tank and driving parts; The water tank has a water inlet and a water outlet on opposite sides thereof, and the tank is mounted directly above the water tank; The tank body has a cavity inside, and the cavity is used to place raw materials required for preparing dilute sulfuric acid. A through hole is opened at one end of the tank body, and the other end of the tank body is connected to the driving member. The driving member is used to drive the tank body to rotate and ensure that one side of the outer wall of the tank body is always located in the notch of the water tank.

2. A device for preparing dilute sulfuric acid according to claim 1, characterized in that: The through hole is provided with a conical tube, an end of the conical tube with a larger inner diameter is fixedly connected to the inner wall of the through hole, and an end of the conical tube with a smaller inner diameter extends in a direction away from the through hole.

3. A device for preparing dilute sulfuric acid according to claim 2, characterized in that: A water inlet pipe is arranged in the conical tube, and the water inlet pipe is sleeved in the conical tube.

4. A device for preparing dilute sulfuric acid according to claim 3, characterized in that: The water inlet pipe is higher than the liquid level of the dilute sulfuric acid.

5. A device for preparing dilute sulfuric acid according to claim 2, characterized in that: An acid inlet pipe is arranged in the conical tube, and the acid inlet pipe is sleeved in the conical tube.

6. A device for preparing dilute sulfuric acid according to claim 5, characterized in that: The acid inlet tube is inserted into dilute sulfuric acid.

7. The device for preparing dilute sulfuric acid according to claim 1, characterized in that: The water inlet and the water outlet are provided with flow guide walls.

8. The device for preparing dilute sulfuric acid according to claim 1, characterized in that: A plurality of heat sinks are distributed around the outer wall of the tank.

9. The device for preparing dilute sulfuric acid according to claim 1, characterized in that: A protrusion is fixedly connected to the inner wall of the tank body.

10. The device for preparing dilute sulfuric acid according to claim 1, characterized in that: An articulated frame is fixedly installed on the top of the water tank, and one end of the tank body facing away from the driving member is hinged to the articulated frame.

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