A phosphoric acid evaporation concentration device

Abstract

The utility model relates to a kind of phosphoric acid evaporation concentration device, including distillation tank and the discharge outlet and steam outlet being arranged at the both ends of distillation tank, the outside of steam outlet is equipped with exhaust pipe, exhaust pipe is inclined to extend towards the outside of distillation tank, the inside of exhaust pipe is provided with the flow guide piece for preventing steam and liquid backflow, the outside of exhaust pipe is provided with condensing structure, the outside of exhaust pipe is provided with the liquid discharge hole for steam condensation discharge, the surface of exhaust pipe is fixedly connected with valve located the outside of liquid discharge hole, the utility model is limited to the discharge path of steam by exhaust pipe and flow guide piece, under the premise of not affecting steam discharge efficiency, steam is guided to second pipeline and is condensed treatment, steam being condensed treatment is limited by flow guide piece and cannot backflow into distillation tank, can only be discharged exhaust pipe under the inclination guide of second pipeline, effectively prevent the situation that steam backflow into distillation tank after condensation occurs, guarantee the quality that distillation tank is proposed in phosphoric acid.

Description

Technical Field

[0001] This utility model relates to the field of evaporation and concentration, specifically to a phosphoric acid evaporation and concentration device. Background Technology

[0002] Phosphoric acid is a common inorganic acid and an important chemical raw material with a wide range of applications. It is a raw material for the production of important phosphate fertilizers and calcium dihydrogen phosphate. In industry, it is mainly used in pharmaceutical, food, and fertilizer production.

[0003] When phosphoric acid is concentrated by evaporation, the steam generated by the distillation tank during the concentration process is discharged vertically upwards and then recovered after condensation. However, after all the steam discharged from the existing distillation tank is condensed, a small amount of liquid is easily left in the exhaust pipe. This residual liquid can easily flow back into the distillation tank, affecting the purified product inside and causing great inconvenience. Utility Model Content

[0004] Based on the above description, this utility model provides a phosphoric acid evaporation and concentration device to solve the problem that the steam discharged from the existing distillation tank is easy to flow back into the distillation tank after condensation, which affects the distillation purity.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A phosphoric acid evaporation and concentration device includes a distillation tank and a discharge port and a steam outlet disposed at both ends of the distillation tank. An exhaust pipe is installed on the outside of the steam outlet. The exhaust pipe extends obliquely toward the outside of the distillation tank. A guide to prevent the backflow of steam and liquid is provided on the inside of the exhaust pipe. A condensation structure is provided on the outside of the exhaust pipe. A drain hole for steam condensation and discharge is provided on the outside of the exhaust pipe. A valve located outside the drain hole is fixedly connected to the surface of the exhaust pipe.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the exhaust pipe includes a first pipe, a second pipe, and a drain hole. The first pipe is installed at the end of the steam outlet away from the distillation tank, and the second pipe is integrally formed at the end of the first pipe away from the distillation tank.

[0008] Furthermore, the second pipe extends at an angle toward the end away from the distillation tank, and the drain hole is opened on the surface of the second pipe near the end of the first pipe and toward the distillation tank.

[0009] Furthermore, the flow guide is fixedly connected to the inner wall of the second pipe and is located on the side of the drain hole near the first pipe. The flow guide is funnel-shaped, with the smaller end facing the end of the second pipe away from the distillation tank.

[0010] Furthermore, the valve is fixedly connected to the surface of the second pipe and located outside the drain hole, and an extension pipe is installed at the end of the valve away from the second pipe.

[0011] Furthermore, the condensation structure includes a condensation sleeve, an inlet pipe, and an outlet pipe. The condensation sleeve is fixedly connected to the end of the second pipe surface away from the distillation tank, and the inlet pipe and the outlet pipe are respectively fixedly connected to the two ends of the condensation sleeve surface.

[0012] Furthermore, the inlet pipe faces away from the distillation vessel, and the outlet pipe faces the distillation vessel.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This invention, through an exhaust pipe and a guide component, limits the steam discharge path without affecting the steam discharge efficiency, guiding the steam into a second pipe for condensation. The condensed steam, restricted by the guide component, cannot flow back into the distillation tank and can only be discharged through the exhaust pipe under the inclined guidance of the second pipe. This effectively prevents the steam from flowing back into the distillation tank after condensation, ensuring the quality of phosphoric acid extracted by the distillation tank. Attached Figure Description

[0014] Figure 1 A schematic diagram of a phosphoric acid evaporation and concentration apparatus provided for an embodiment of this utility model; Figure 2 A cross-sectional structural diagram of a phosphoric acid evaporation and concentration apparatus provided in an embodiment of this utility model; Figure 3 This is a cross-sectional structural diagram showing the connection relationship between the exhaust pipe and the condenser structure in an embodiment of this utility model; The attached diagram lists the components represented by each number as follows: 1. Distillation tank; 11. Discharge port; 12. Steam outlet; 2. Exhaust pipe; 21. First pipe; 22. Second pipe; 23. Drain hole; 3. Flow guide; 4. Condensation structure; 41. Condensation sleeve; 42. Liquid inlet; 43. Liquid outlet; 5. Valve; 6. Extension pipe. Detailed Implementation

[0015] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0017] Please see Figure 1-3 The present invention discloses a phosphoric acid evaporation and concentration device, comprising a distillation tank 1 and a discharge port 11 and a steam outlet 12 disposed at both ends of the distillation tank 1. An exhaust pipe 2 is installed on the outside of the steam outlet 12, and the exhaust pipe 2 extends obliquely toward the outside of the distillation tank 1. A guide 3 is provided on the inside of the exhaust pipe 2 to prevent the backflow of steam and liquid. A condensation structure 4 is provided on the outside of the exhaust pipe 2. A drain hole 23 for steam condensation and discharge is provided on the outside of the exhaust pipe 2. A valve 5 located outside the drain hole 23 is fixedly connected to the surface of the exhaust pipe 2.

[0018] Please see Figure 2 The exhaust pipe 2 includes a first pipe 21, a second pipe 22, and a drain hole 23. The first pipe 21 is installed at the end of the steam outlet 12 away from the distillation tank 1. The second pipe 22 is integrally formed at the end of the first pipe 21 away from the distillation tank 1. The second pipe 22 extends at an incline toward the end away from the distillation tank 1. The drain hole 23 is opened on the surface of the second pipe 22 near the end of the first pipe 21 and toward the distillation tank 1. The incline setting of the second pipe 22 does not affect the steam discharge efficiency and can also concentrate the steam together for condensation.

[0019] Please see Figure 1 The guide element 3 is fixedly connected to the inner wall of the second pipe 22 and is located on the side of the drain hole 23 near the first pipe 21. The guide element 3 is funnel-shaped, with the smaller end facing the end of the second pipe 22 away from the distillation tank 1. The guide element 3 can concentrate the steam into the second pipe 22 for condensation. After condensation, the steam entering the second pipe 22 cannot flow back into the distillation tank 1 due to the restriction of the guide element 3, thus avoiding any impact on the purified product in the distillation tank 1. At the same time, the condensed steam can be completely discharged from the second pipe 22 through the drain hole 23 under the inclined guidance of the second pipe 22, preventing any residue from remaining in the exhaust pipe 2 and ensuring the efficiency of steam condensation.

[0020] Please see Figure 1 Valve 5 is fixedly connected to the surface of the second pipe 22 and located outside the drain hole 23. An extension pipe 6 is installed at the end of valve 5 away from the second pipe 22. The setting of valve 5 makes it convenient for staff to control the discharge of liquid formed after steam condenses in the second pipe 22.

[0021] Please see Figure 1The condensing structure 4 includes a condensing sleeve 41, an inlet pipe 42, and an outlet pipe 43. The condensing sleeve 41 is fixedly connected to the end of the second pipe 22 away from the distillation tank 1. The inlet pipe 42 and the outlet pipe 43 are respectively fixedly connected to the two ends of the surface of the condensing sleeve 41. The inlet pipe 42 faces the end away from the distillation tank 1, and the outlet pipe 43 faces the distillation tank 1. The condensing sleeve 41 can wrap around the outside of the second pipe 22 to condense the steam entering the second pipe 22, so that the liquefied liquid produced after condensation can be easily recycled. The upper and lower positions of the inlet pipe 42 and the outlet pipe 43 can cooperate with the external water supply pipe to form a liquid circulation. The liquid enters the condensing sleeve 41 from the inlet pipe 42 and exits the condensing sleeve 41 through the outlet pipe 43. The liquid can dissipate heat during the circulation in the water supply pipe, and then the liquid can be recycled through the external water supply pipe.

[0022] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0023] 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. A phosphoric acid evaporation and concentration apparatus, comprising a distillation tank (1) and a discharge port (11) and a steam outlet (12) disposed at both ends of the distillation tank (1), characterized in that: An exhaust pipe (2) is installed on the outside of the steam outlet (12). The exhaust pipe (2) extends obliquely toward the outside of the distillation tank (1). A guide (3) is provided on the inside of the exhaust pipe (2) to prevent the backflow of steam and liquid. A condensation structure (4) is provided on the outside of the exhaust pipe (2). A drain hole (23) for steam condensation and discharge is provided on the outside of the exhaust pipe (2). A valve (5) located outside the drain hole (23) is fixedly connected to the surface of the exhaust pipe (2).

2. The phosphoric acid evaporation and concentration apparatus according to claim 1, characterized in that: The exhaust pipe (2) includes a first pipe (21), a second pipe (22) and a drain hole (23). The first pipe (21) is installed at the end of the steam outlet (12) away from the distillation tank (1), and the second pipe (22) is integrally formed at the end of the first pipe (21) away from the distillation tank (1).

3. The phosphoric acid evaporation and concentration apparatus according to claim 2, characterized in that: The second pipe (22) extends obliquely toward the end away from the distillation tank (1), and the drain hole (23) is opened on the surface of the second pipe (22) near the end of the first pipe (21) and toward the distillation tank (1).

4. The phosphoric acid evaporation and concentration apparatus according to claim 2, characterized in that: The guide (3) is fixedly connected to the inner wall of the second pipe (22) and located on the side of the drain hole (23) close to the first pipe (21). The guide (3) is funnel-shaped and the smaller end faces the end of the second pipe (22) away from the distillation tank (1).

5. The phosphoric acid evaporation and concentration apparatus according to claim 2, characterized in that: The valve (5) is fixedly connected to the surface of the second pipe (22) and located outside the drain hole (23). An extension pipe (6) is installed at the end of the valve (5) away from the second pipe (22).

6. The phosphoric acid evaporation and concentration apparatus according to claim 2, characterized in that: The condensation structure (4) includes a condensation sleeve (41), an inlet pipe (42), and an outlet pipe (43). The condensation sleeve (41) is fixedly connected to one end of the surface of the second pipe (22) away from the distillation tank (1). The inlet pipe (42) and the outlet pipe (43) are respectively fixedly connected to the two ends of the surface of the condensation sleeve (41).

7. The phosphoric acid evaporation and concentration apparatus according to claim 6, characterized in that: The inlet (42) faces away from the distillation tank (1), and the outlet (43) faces the distillation tank (1).

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