Front mixing and stirring device for producing anhydrous hydrogen fluoride

Abstract

The utility model discloses a front mixing and stirring device for producing anhydrous hydrogen fluoride. The front mixing and stirring device comprises a bottom plate, three symmetrically-arranged supporting assemblies are arranged on the bottom plate, a stirring box body is arranged among the supporting assemblies, a stirring assembly is arranged at the top of the stirring box body, and a heating assembly is arranged on the side face of the stirring box body. A pipeline integration assembly is arranged on the upper surface of the bottom plate and internally comprises a liquid feeding pipeline, and the liquid feeding pipeline is connected to the side top of the stirring box body; the auxiliary feeding pipeline is connected to the central position of the side surface of the stirring box body; and the discharging pipeline is connected to the bottom of the stirring box body. Sulfuric acid and fluorite powder for producing anhydrous hydrogen fluoride can be put into the box body to be stirred and mixed, meanwhile, the interior of the box body can be heated to further strengthen the mixing effect, an auxiliary feeding pipe is additionally arranged on the box body, extra chemicals can be added at any time, the application range is wide, and the stirring effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of anhydrous hydrogen fluoride production, and particularly relates to a pre-mixing and stirring device for anhydrous hydrogen fluoride production. Background Art

[0002] In the traditional method for producing anhydrous hydrogen fluoride, after fluorite and sulfuric acid are slightly mixed, they are directly fed into a rotary furnace reactor and contacted with the hot gas coming from the combustion chamber to make the materials undergo an endothermic reaction. Since the materials move slowly in the reactor and there is no external mechanical stirring effect, fluorite and sulfuric acid cannot be fully mixed. And the by-product of the reaction between fluorite and sulfuric acid is gypsum. Therefore, a layer of gypsum film often forms around the fluorite particles during the reaction process, thus hindering the continuous reaction of the materials and greatly reducing the driving force of the reaction process. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a pre-mixing and stirring device for anhydrous hydrogen fluoride production, which can put sulfuric acid and fluorite powder for anhydrous hydrogen fluoride production into a box body for stirring and pre-mixing. At the same time, the inside of the box body can be heated to further strengthen the mixing effect. An auxiliary feeding pipe is additionally attached to the box body to add additional chemical drugs at any time, with a wide application range and good stirring effect.

[0004] To solve the above technical problem, the utility model provides a pre-mixing and stirring device for anhydrous hydrogen fluoride production, which is characterized in that it includes a bottom plate, three symmetrically arranged support components are provided on the bottom plate, a stirring box body is arranged between the support components, a stirring component is arranged on the top of the stirring box body, and a heating component is arranged on the side of the stirring box body; a pipeline integration component is arranged on the upper surface of the bottom plate, and the pipeline integration component includes: a liquid feeding pipeline, which is connected to the side top of the stirring box body; an auxiliary feeding pipeline, which is connected to the central position on the side of the stirring box body; a discharging pipeline, which is connected to the bottom of the stirring box body.

[0005] Further, a control integration component is arranged on one side of the bottom plate close to the stirring box body.

[0006] Further, the stirring component includes a stirring motor arranged on the top of the stirring box body, a rotating shaft body is arranged at the output end of the stirring motor, and a spiral blade is arranged at the bottom of the rotating shaft body.

[0007] Further, a maintenance door is arranged on the side of the stirring box body.

[0008] Further, a Hastelloy material layer is coated on the inner side wall of the stirring box body.

[0009] Further, the pipeline integration component includes a control valve, a pressure pump, and a flow meter which are arranged at intervals.

[0010] Further, a pressure relief component is arranged at the top side of the stirring box body.

[0011] Further, a sampling inspection component is arranged at the side position of the stirring box body.

[0012] Further, a solid feeding port is arranged at the top of the stirring box body.

[0013] The beneficial effects of the present utility model: When the whole device is in use, fluorite powder and sulfuric acid are respectively fed into the inside of the stirring box body from the fixed feeding port and the liquid feeding pipeline. Then, the stirring component and the heating component are started to stir and mix the materials. On the one hand, the stirring component disturbs the reaction materials, so that the fluorite powder does not settle, and the reaction can proceed smoothly. On the other hand, during the stirring process, the surface of the fluorite is updated, and it is fully contacted with sulfuric acid, improving the reaction speed. Since the reaction is an endothermic reaction, heating ensures the normal operation of the reaction. The auxiliary feeding pipeline facilitates the staff to put other catalysts and other materials that promote the reaction at any time. The discharging pipeline is used for the discharging operation of the materials inside the stirring box body after the reaction ends. It has a wide application range and good stirring effect. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present utility model.

[0015] Figure 2 is the structural schematic diagram of the stirring component of the present utility model.

[0016] Explanation of the reference numerals in the figure: 1. Bottom plate; 2. Support component; 3. Stirring box body; 4. Stirring component; 41. Stirring motor; 42. Rotating shaft body; 43. Spiral blade; 5. Heating component; 6. Pipeline integration component; 7. Liquid feeding pipeline; 8. Auxiliary feeding pipeline; 9. Discharging pipeline; 10. Control integration component; 11. Maintenance door; 12. Control valve; 13. Pressure pump; 14. Flow meter; 15. Pressure relief component; 16. Sampling inspection component; 17. Solid feeding port. Specific Embodiments

[0017] The following further illustrates the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not used as a limitation to the present utility model.

[0018] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0019] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0020] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0022] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0023] Referring to Figures 1 to 2 As shown, an embodiment of a pre-mixing and stirring device for anhydrous hydrogen fluoride production of the present utility model includes a bottom plate 1, on which three symmetrically arranged support components 2 are provided. A stirring box body 3 is arranged between the support components 2. A stirring component 4 is arranged on the top of the stirring box body 3, and a heating component 5 is arranged on the side of the stirring box body 3. A pipeline integration component 6 is arranged on the upper surface of the bottom plate 1, and the pipeline integration component 6 includes: a liquid feeding pipeline 7, which is connected to the side top of the stirring box body 3; an auxiliary feeding pipeline 8, which is connected to the central position on the side of the stirring box body 3; a discharging pipeline 9, which is connected to the bottom of the stirring box body 3.

[0024] On one side of the bottom plate 1 close to the stirring box body 3, a control integration component 10 is provided for controlling the opening and closing of various pipelines and components such as motors of the whole device. The stirring component 4 includes a stirring motor 41 arranged on the top of the stirring box body 3. The output end of the stirring motor 41 is provided with a rotating shaft body 42, and a spiral blade 43 is arranged at the bottom of the rotating shaft body 42. When the stirring motor 41 is started, it drives the rotating shaft body 42 to rotate, and the rotating shaft body 42 drives the spiral blade 43 to rotate to drive the internal materials to be mixed evenly.

[0025] An inspection door 11 is arranged on the side of the stirring box body 3, which is convenient for staff to open timely to inspect the operation of internal components. A Hastelloy material layer is coated on the inner side wall of the stirring box body 3, which has strong corrosion resistance and long service life. The pipeline integration component 6 includes a control valve 12, a pressure pump 13 and a flowmeter 14 arranged at intervals. The control valve 12 is used to control the opening and closing of the pipeline in real time. The pressure pump 13 is used for pressurized transportation and circulation of liquids. The flowmeter 14 is used to monitor the internal operation flow of the pipeline in real time. A pressure relief component 15 is arranged on the side top of the stirring box body 3, which opens when the internal pressure of the box body is too large to play a pressure relief role. A sampling inspection component 16 is arranged at the side position of the stirring box body 3, and opening it can release the liquid inside the stirring box body 3 for real-time detection. A solid feeding port 17 is arranged on the top of the stirring box body 3, which is distinguished from the liquid feeding port to facilitate the feeding of materials in different states into the stirring box body 3.

[0026] When in use as a whole, fluorite powder and sulfuric acid are respectively fed into the interior of the stirring box body 3 from the fixed feeding port and the liquid feeding pipeline 7. After that, the stirring assembly 4 and the heating assembly 5 are started to stir and mix the materials. On the one hand, the stirring assembly 4 disturbs the reaction materials to prevent the fluorite powder from settling and ensure the smooth progress of the reaction. On the other hand, during the stirring process, the surface of the fluorite is renewed, making it fully contact with the sulfuric acid, thus improving the reaction rate. Since the reaction is an endothermic reaction, heating is required to ensure the normal operation of the reaction. The auxiliary feeding pipeline 8 facilitates the staff to add other catalysts and other materials that promote the reaction at any time. The discharging pipeline 9 is used for discharging the materials inside the stirring box body 3 after the reaction ends. It has a wide range of applications and good stirring effects.

[0027] The above-described embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A pre-mixing and stirring device for the production of anhydrous hydrogen fluoride, characterized in that: The invention comprises a bottom plate (1), three symmetrically arranged support assemblies (2) are arranged on the bottom plate (1), a stirring box (3) is arranged between the support assemblies (2), a stirring assembly (4) is arranged on the top of the stirring box (3), and a heating assembly (5) is arranged on the side of the stirring box (3); A pipeline integrated component (6) is arranged on the upper surface of the bottom plate (1), and the pipeline integrated component (6) comprises: a liquid feeding pipeline (7), and the liquid feeding pipeline (7) is connected to the side top of the stirring box (3); An auxiliary feeding pipe (8), the auxiliary feeding pipe (8) being connected to the center position of the side of the stirring box (3); A material discharge pipe (9), wherein the material discharge pipe (9) is connected to the bottom of the mixing box (3).

2. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: A control integrated component (10) is provided on one side of the bottom plate (1) close to the stirring box (3).

3. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: The stirring assembly (4) comprises a stirring motor (41) arranged on the top of the stirring box (3); a rotating shaft (42) is arranged at the output end of the stirring motor (41); and a spiral blade (43) is arranged at the bottom of the rotating shaft (42).

4. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: An inspection door (11) is provided on the side of the mixing box (3).

5. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: The inner side wall of the stirring box (3) is coated with a Hastelloy material layer.

6. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: The pipeline integrated component (6) comprises a control valve (12), a pressure pump (13) and a flow meter (14) which are arranged at intervals.

7. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: A pressure relief assembly (15) is provided on the top of the side of the stirring box (3).

8. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: A sampling inspection component (16) is arranged on the side of the stirring box (3).

9. The pre-mixing and stirring device for producing anhydrous hydrogen fluoride according to claim 1, characterized in that: A solid loading port (17) is provided on the top of the stirring box (3).

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