Air inlet device of drying tower

Abstract

An air inlet device of a drying tower comprises an air inlet pipe (3) mounted on the side wall of a drying tower body (1), and a polytetrafluoroethylene sleeve (4) is lined in the air inlet pipe (3). The anti-corrosion drying tower has the advantages that the drying tower air inlet pipe lining is protected through the anti-corrosion characteristic of the polytetrafluoroethylene material, so that the anti-corrosion purpose is achieved, potential safety hazards caused by leakage and leakage of equipment to production are prevented, and meanwhile the daily equipment maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sulfuric acid production technical field, concretely relates to a drying tower air intake device. BACKGROUND

[0002] At present, the original drying tower air inlet pipe on the existing pyrite-based sulfuric acid production line is designed as a carbon steel shell lined with 2 layers of acid-resistant ceramic tiles, due to the impurities in the raw materials, when the furnace gas enters the drying tower, the fluorine gas reacts with the ceramic tiles, which has a certain corrosive effect on the lining ceramic tiles, long-term corrosion and erosion can easily cause local corrosion and leakage of the air inlet pipe, which affects the normal operation of the equipment and increases the maintenance cost. SUMMARY

[0003] The utility model discloses a drying tower air intake device.

[0004] The utility model discloses a drying tower air intake device.

[0005] The air inlet pipe is installed on the drying tower body in an inclined shape with the air inlet end higher than the air outlet end.

[0006] The inclination angle between the air inlet pipe and the horizontal plane is 15 degrees.

[0007] The air inlet pipe and the polytetrafluoroethylene sleeve are both duckbill pipes.

[0008] The polytetrafluoroethylene sleeve is integrally formed, and the air inlet pipe is assembled by two symmetrical half pipes.

[0009] The air inlet end of the air inlet pipe is provided with a connecting flange, the connecting surfaces of the two half pipes are both provided with connecting parts, a group of mounting holes are arranged on the connecting parts, and the two half pipes are fixedly connected through a group of screws.

[0010] The utility model has the advantages that the polytetrafluoroethylene material has corrosion resistance, which can protect the drying tower air inlet pipe, prevent corrosion, prevent safety hazards caused by equipment leakage, and reduce the daily equipment maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model structure schematic diagram.

[0012] Figure 2 The second embodiment structure schematic diagram of air inlet pipe.

[0013] Figure 3 The second embodiment structure schematic diagram of air inlet pipe.

[0014] Figure 4is a schematic view of the internal structure of the second embodiment of the air inlet pipe. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so that once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0017] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, in the description of the present application, the terms "first", "second" and the like are only used for distinction and cannot be understood as indicating or implying relative importance.

[0018] In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "provided", "connected" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0019] As shown in the drawings, the present application comprises an air inlet pipe 3 mounted on the side wall of the drying tower body 1, and the air inlet pipe 3 is lined with a polytetrafluoroethylene sleeve 4.

[0020] When the furnace gas enters the drying tower through the gas inlet pipe 3, the polytetrafluoroethylene sleeve 4 can effectively prevent the corrosion of fluorine gas to the pipe.

[0021] Further, the gas inlet pipe 3 is installed on the drying tower body 1 in an inclined manner with the gas inlet end higher than the gas outlet end.

[0022] When the furnace gas enters, the direction of its spray is towards the bottom of the drying tower body 1, and the furnace gas is sprayed downward and then rises upward by itself, so that the gas can be better dispersed and can be more fully contacted with the falling liquid phase medium, thereby improving the drying effect.

[0023] Preferably, the inclination angle of the gas inlet pipe 3 with the horizontal plane is 15°.

[0024] Further, the gas inlet pipe 3 and the polytetrafluoroethylene sleeve 4 are both duckbill pipes.

[0025] The gas inlet end of the duckbill pipe is in the shape of a circular pipe, and the gas outlet end is in the shape of a flat pipe in the horizontal direction. The duckbill pipe has good diffusion performance, and after the furnace gas is sprayed from the duckbill pipe, it can be dispersed horizontally, so that the furnace gas is more evenly distributed in the cross section of the drying tower body 1.

[0026] Further, the polytetrafluoroethylene sleeve 4 is integrally formed, and the gas inlet pipe 3 is assembled by two symmetrical half pipes.

[0027] The gas inlet end of the gas inlet pipe 3 is provided with a connecting flange, and the connecting surfaces of the two half pipes are both provided with connecting portions 7, and a group of mounting holes are arranged on the connecting portions 7. The two half pipes are fixedly connected by a group of screws.

[0028] The polytetrafluoroethylene sleeve 4 is a duckbill pipe similar to the gas inlet pipe 3, and after installation, the outer wall of the polytetrafluoroethylene sleeve 4 is tightly fitted with the inner wall of the gas inlet pipe 3. During installation, the two half pipes wrap the polytetrafluoroethylene sleeve 4 from the left and right sides, and are integrally connected by screws.

Claims

1. A drying tower air inlet device, characterized in that... It includes an air inlet pipe (3) installed on the side wall of the drying tower (1), and the air inlet pipe (3) is lined with a polytetrafluoroethylene sleeve (4). The air inlet pipe (3) is installed on the drying tower body (1) at an incline with the air inlet end higher than the air outlet end.

2. The air inlet device for a drying tower according to claim 1, characterized in that... The inclination angle of the air intake pipe (3) to the horizontal plane is 15°.

3. The air inlet device for a drying tower according to claim 1, characterized in that... Both the air inlet pipe (3) and the polytetrafluoroethylene sleeve (4) are duckbill pipes.

4. The air inlet device for a drying tower according to claim 3, characterized in that... The polytetrafluoroethylene sleeve (4) is integrally formed, and the air inlet pipe (3) is assembled from two symmetrical half-pipes on the left and right sides.

5. The air inlet device for a drying tower according to claim 4, characterized in that... The intake end of the intake pipe (3) is provided with a connecting flange, and the connecting surfaces of the two half-pipes are provided with a connecting part (7), and a set of mounting holes are provided on the connecting part (7). The two half-pipes are fixed together by a set of screws.

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