Device for spraying and mixing washing acid

Abstract

The utility model discloses a device for spraying and mixing washing acid. The device comprises a mixing pipe and a container, wherein the mixing pipe is used for mixing the washing acid and sulfuric acid; the washing acid conveying pipe is fixed to the top of the mixing pipe and used for conveying washing acid, and the output end of the washing acid conveying pipe is inserted into the mixing pipe and extends into the spraying assembly; the sulfuric acid conveying pipes are arranged on the two sides of the washing acid conveying pipe, fixedly communicated with the mixing pipe and used for conveying sulfuric acid into the mixing pipe; by means of the arrangement of the spraying assembly, the washing acid can be sprayed to be mixed with concentrated sulfuric acid in a convection mode, the contact area is increased, the mixing efficiency is improved, the spraying assembly and the baffle plate act synergistically, spraying flow and turbulent flow act mutually, mixing is enhanced, and the washing acid can be sprayed out to be mixed with the concentrated sulfuric acid in a convection mode. And non-uniformity is prevented.

Description

Technical fields:

[0001] This utility model relates to the field of mixing technology, specifically to a device for mixing washing acid by spray. Background technology:

[0002] In the production of hydrogen fluoride (HF), the mixing of washing acid and concentrated sulfuric acid is a crucial step. However, current mixing devices have limited mixing efficiency and are prone to uneven mixing, which affects the subsequent reaction. The jet streams are also prone to mutual interference, leading to uneven mixing. Furthermore, the fluid flow direction within the mixing chamber is unidirectional, the mixing time is short, and the mixing effect is limited. Utility model content:

[0003] Therefore, this utility model provides a washing acid spray mixing device to overcome the problems of limited mixing effect, uneven mixing, and poor subsequent reaction effect of existing mixing devices, which are prone to mutual interference of the spray streams, resulting in uneven mixing, unidirectional fluid flow in the mixing chamber, short mixing time, and limited mixing effect.

[0004] This utility model is implemented by the following technical solution:

[0005] An apparatus for spraying and mixing washing acid, comprising:

[0006] Mixing tube: A container used to mix washing acid and sulfuric acid;

[0007] Washing acid delivery pipe: fixed at the top of the mixing pipe, used to deliver washing acid, its output end is inserted into the mixing pipe and extends into the spray assembly;

[0008] Sulfuric acid delivery pipe: Installed on both sides of the washing acid delivery pipe, and fixedly connected to the mixing pipe, used to deliver sulfuric acid into the mixing pipe;

[0009] Spray assembly: Fixed on the top surface inside the mixing tube, used to spray the washing acid upwards into the mixing tube;

[0010] Discharge tube: Fixed at the bottom of the mixing tube, used to discharge the mixed solution.

[0011] Preferably, baffles are fixed sequentially from top to bottom inside the mixing tube to change the direction of fluid flow and enhance the mixing effect.

[0012] Preferably, the spraying assembly includes a guide tube with a sealed bottom. The guide tube is fixed to the top surface inside the mixing tube, and the top of the guide tube can be inserted into the washing acid delivery tube. Multiple spraying elements are fixedly connected to the outside of the guide tube from top to bottom, and the spraying height of each spraying element is less than the distance between adjacent spraying elements.

[0013] Preferably, the spraying component includes multiple connecting pipes, which are annularly fixed to the outer wall of the guide pipe. A first spraying pipe is fixedly connected to the connecting pipe, and the first spraying pipe is arranged vertically as a whole. The output end of the first spraying pipe sprays washing acid toward the top of the mixing pipe.

[0014] Preferably, the spraying component includes multiple connecting pipes, which are annularly fixed to the outer wall of the guide pipe. A second spraying pipe is fixedly connected to the connecting pipe, and the second spraying pipe is arranged at an angle to the vertical direction. The output end of the second spraying pipe sprays washing acid towards the top of the mixing pipe.

[0015] The advantages of this invention are: by setting up the spraying component, the washing acid and concentrated sulfuric acid can be sprayed and mixed in a convective manner, increasing the contact area and improving the mixing efficiency. Furthermore, the spraying component and the baffle plate work together, and the spray flow and turbulence interact to enhance mixing and prevent unevenness. Attached image description:

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure described in this utility model;

[0018] Figure 2 This is a partial three-dimensional structural diagram of Embodiment 1 of the present invention;

[0019] Figure 3 This is a partial three-dimensional structural diagram of Embodiment 2 of the present invention.

[0020] In the diagram: 1. Mixing pipe; 2. Washing acid delivery pipe; 3. Sulfuric acid delivery pipe; 4. Baffle plate; 5. Discharge pipe; 6. Spray assembly; 7. Guide pipe; 8. First spray pipe; 9. Second spray pipe. Detailed implementation method:

[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] like Figure 1 , Figure 2 , Figure 3 As shown, a washing acid spray mixing device includes a mixing tube 1, a washing acid delivery tube 2 fixed to the top of the mixing tube 1, and sulfuric acid delivery tubes 3 respectively arranged on both sides of the washing acid delivery tube 2. The sulfuric acid delivery tubes 3 are fixedly connected to the mixing tube 1. The output end of the washing acid delivery tube 2 is inserted into the mixing tube 1 and extends into the spray assembly 6. The spray assembly 6 is fixed on the top surface inside the mixing tube 1. The spray assembly 6 can spray the washing acid upward into the mixing tube 1. An outlet pipe 5 is fixed to the bottom of the mixing tube 1. Baffles 4 are fixed in sequence from top to bottom inside the mixing tube 1.

[0023] Specifically:

[0024] The washing acid is delivered to the spraying assembly 6 through the washing acid delivery pipe 2. The spraying assembly 6 sprays the washing acid upward to fully contact the sulfuric acid entering from both sides, thus achieving preliminary mixing.

[0025] The mixed solution changes its flow direction under the action of baffle 4, forming turbulence, which further enhances the mixing effect. The fully mixed solution is discharged from the mixing pipe through the outlet pipe 5.

[0026] The spray assembly 6 includes a guide pipe 7 and spray elements. The bottom of the guide pipe 7 is sealed, and the top of the guide pipe 7 is fixed to the inner top surface of the mixing pipe 1. The top of the guide pipe 7 can be inserted into the washing acid delivery pipe 2. Multiple spray elements are fixedly connected to the outside of the guide pipe 7 from top to bottom. The spray height of the spray elements is less than the distance between adjacent spray elements.

[0027] Specifically:

[0028] After the washing acid enters the guide pipe 7, it flows downward under the action of gravity. When the washing acid reaches the position of the first stage spraying element, it is sprayed out and comes into contact with the sulfuric acid entering from both sides to form a preliminary mixture.

[0029] The initially mixed solution continues to flow downwards, passing through subsequent spray positions and being sprayed out again to further mix with other components in the solution. After multi-stage spraying and mixing, a uniformly mixed solution is finally obtained.

[0030] like Figure 2 As shown in Embodiment 1, the spraying component includes multiple annular connecting pipes fixed on the outer wall of the guide pipe 7. A first spraying pipe 8 is fixedly connected to the connecting pipe. The first spraying pipe 8 is vertically arranged and its output end faces upward.

[0031] Specifically:

[0032] The washing acid enters the guide pipe 7 through the washing acid delivery pipe 2. The washing acid flows in the guide pipe 7 and is evenly distributed to each first spray pipe 8 through the connecting pipe. The first spray pipe 8 sprays the washing acid upward at high speed, forming a strong jet stream.

[0033] The ejected washing acid comes into full contact with the sulfuric acid entering from both sides of the mixing tube. In other words, the washing acid and sulfuric acid undergo intense turbulent mixing under the action of the jet flow, achieving initial mixing.

[0034] As the washing acid continuously enters the guide tube 7, the subsequent first spray tube 8 sprays the washing acid out in sequence, which comes into contact with the already preliminarily mixed solution again. After multi-stage spraying and mixing, a uniformly mixed solution is finally obtained.

[0035] like Figure 3 As shown in Embodiment 2, the spraying component includes multiple annular connecting pipes fixed on the outer wall of the guide pipe 7. A second spraying pipe 9 is fixedly connected to the connecting pipe. The second spraying pipe 9 is inclined and its output end faces upward.

[0036] Specifically:

[0037] The washing acid enters the guide pipe 7 through the washing acid delivery pipe 2. The washing acid flows in the guide pipe and is evenly distributed to each second spray pipe 9 through the connecting pipe. The second spray pipe 9 sprays the washing acid at an inclined angle to form a spiral spray flow.

[0038] The sprayed washing acid comes into full contact with the sulfuric acid entering from both sides of the mixing tube. Because the jet stream is spiral-shaped, it can form a larger contact area, and the jet stream generates rotational motion inside the mixing tube, which further enhances the mixing effect.

[0039] As the washing acid continues to enter the guide tube, the subsequent second jet tube sprays the washing acid out in sequence, which comes into contact with the already preliminarily mixed solution again. The spiral jets intertwine with each other in the mixing tube, forming a more complex turbulent mixing, and finally obtaining a more uniform mixed solution.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An apparatus for spraying and mixing washing acid, characterized in that, include: Mixing tube: A container used to mix washing acid and sulfuric acid; Washing acid delivery pipe: fixed at the top of the mixing pipe, used to deliver washing acid, its output end is inserted into the mixing pipe and extends into the spray assembly; Sulfuric acid delivery pipe: Installed on both sides of the washing acid delivery pipe, and fixedly connected to the mixing pipe, used to deliver sulfuric acid into the mixing pipe; Spray assembly: Fixed on the top surface inside the mixing tube, used to spray the washing acid upwards into the mixing tube; Discharge tube: Fixed at the bottom of the mixing tube, used to discharge the mixed solution.

2. The apparatus for spraying and mixing washing acid according to claim 1, characterized in that: The mixing tube is equipped with baffles fixed from top to bottom to change the direction of fluid flow and enhance the mixing effect.

3. The apparatus for spraying and mixing washing acid according to claim 1, characterized in that: The spraying assembly includes a guide tube with a sealed bottom. The guide tube is fixed to the top surface inside the mixing tube. The top of the guide tube can be inserted into the washing acid delivery tube. Multiple spraying elements are fixedly connected to the outside of the guide tube from top to bottom. The spraying height of each spraying element is less than the distance between adjacent spraying elements.

4. The apparatus for spraying and mixing washing acid according to claim 3, characterized in that: The spraying component includes multiple connecting pipes, which are fixed in a ring on the outer wall of the guide pipe. A first spraying pipe is fixedly connected to the connecting pipe, and the first spraying pipe is arranged vertically as a whole. The output end of the first spraying pipe sprays washing acid towards the top of the mixing pipe.

5. The apparatus for spraying and mixing washing acid according to claim 3, characterized in that: The spraying component includes multiple connecting pipes, which are fixed in a ring on the outer wall of the guide pipe. A second spraying pipe is fixedly connected to the connecting pipe, and the second spraying pipe is arranged at an angle to the vertical direction. The output end of the second spraying pipe sprays washing acid towards the top of the mixing pipe.

Images