Corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas

Abstract

The utility model provides a corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas, which comprises a connecting shell, an air blast inlet pipe and a yellow phosphorus tail gas inlet pipe are respectively arranged on the top and one side of the connecting shell, and an air blast pipe and a built-in yellow phosphorus tail gas pipe are detachably connected to the other side of the connecting shell. The built-in yellow phosphorus tail gas pipe is located in the air blast pipe, the air blast inlet pipe and the yellow phosphorus tail gas inlet pipe are communicated with the air blast pipe and the built-in yellow phosphorus tail gas pipe respectively, and a built-in air blast pipe is further arranged in the built-in yellow phosphorus tail gas pipe. The combustion quality of yellow phosphorus tail gas is improved, and parts in the burner are convenient to clean and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas burners, in particular to a corrosion-resistant burner used for efficient combustion of yellow phosphorus tail gas. Background Art

[0002] At present, only 56% of enterprises in my country's phosphorus chemical industry have realized a complete industrial chain from phosphate rock mining to deep processing. Among them, the comprehensive utilization of yellow phosphorus tail gas has always been deeply developed according to the industrial layout of each enterprise for downstream phosphorus chemical products. At present, its bottleneck mainly lies in improving the combustion efficiency of yellow phosphorus tail gas and reducing incomplete combustion. However, the yellow phosphorus tail gas produced by the electric furnace has a high impurity rate, which also contains some corrosive gases. When it is not completely burned, it will cause great corrosion to the burner nozzle, resulting in direct impact on the combustion efficiency after the burner nozzle is damaged. At the same time, the metal fragments of the damaged burner nozzle fall into the production line, seriously threatening the product quality. Summary of the invention

[0003] The technical problem to be solved by the utility model is that incomplete combustion of the burner easily causes corrosion to the burner, resulting in damage to the burner.

[0004] In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a corrosion-resistant burner for efficient combustion of yellow phosphorus exhaust gas, comprising a connecting shell, the top and one side of the connecting shell are respectively provided with an air blast inlet pipe and a yellow phosphorus exhaust inlet pipe, the other side of the connecting shell is detachably connected with an air blast pipe and a built-in yellow phosphorus exhaust pipe, the built-in yellow phosphorus exhaust pipe is located in the air blast pipe, the air blast inlet pipe and the yellow phosphorus exhaust inlet pipe are respectively connected to the air blast pipe and the built-in yellow phosphorus exhaust pipe, and a built-in blast pipe is also provided in the built-in yellow phosphorus exhaust pipe.

[0005] Preferably, the inner walls of the built-in yellow phosphorus tail pipe and the air blast pipe are respectively provided with support ribs radially arranged, and the support ribs are respectively connected to the built-in blast pipe and the built-in yellow phosphorus tail pipe.

[0006] Preferably, the built-in air blast pipe is L-shaped, and an arc angle is provided at the corner portion; an annular protrusion is provided at the connecting end of the built-in air blast pipe and the built-in yellow phosphorus exhaust pipe; the outer diameter of the annular protrusion is larger than the inner diameter of the opening at the connection between the built-in yellow phosphorus exhaust pipe and the built-in air blast pipe; the built-in air blast pipe is threadedly connected with a connecting ring, the connecting ring is located on the outside of the built-in yellow phosphorus exhaust pipe, and the outer diameter of the connecting ring is not less than the outer diameter of the annular protrusion.

[0007] Preferably, the connecting shell is detachably connected to the air blast pipe, and a sealing ring is provided at the joint.

[0008] Preferably, the movable ends of the yellow phosphorus tail gas intake pipe and the air blast intake pipe are both provided with connecting flanges.

[0009] 1. The utility model provides a corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas. By arranging a built-in blast pipe in the inner circle of a built-in yellow phosphorus tail gas pipe, and arranging the built-in yellow phosphorus tail gas pipe inside an air blast pipe, the yellow phosphorus tail gas and air are fully mixed to achieve complete combustion of the yellow phosphorus tail gas, thereby avoiding waste and corrosion caused by incomplete combustion.

[0010] 2. Through the detachable connection shell and air blast pipe, the built-in blast pipe can be detachably connected to the built-in yellow phosphorus tail gas pipe, so that it can be replaced in time when corrosion damage occurs inside the burner, and the inside of the burner can also be cleaned and maintained at ordinary times. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0013] In the figure: 1. Yellow phosphorus tail gas intake pipe; 2. Air blast intake pipe; 3. Connecting shell; 4. Built-in yellow phosphorus tail gas pipe; 5. Air blast pipe; 6. Built-in blast pipe; 7. Connecting ring; 8. Support rib plate. DETAILED DESCRIPTION

[0014] like Figure 1 A corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas comprises a connecting shell 3, the top and one side of the connecting shell 3 are respectively provided with an air blast inlet pipe 2 and a yellow phosphorus tail gas inlet pipe 1, the other side of the connecting shell 3 is detachably connected with an air blast pipe 5 and a built-in yellow phosphorus tail gas pipe 4, the built-in yellow phosphorus tail gas pipe 4 is located in the air blast pipe 5, the air blast inlet pipe 2 and the yellow phosphorus tail gas inlet pipe 1 are respectively connected with the air blast pipe 5 and the built-in yellow phosphorus tail gas pipe 4, and a built-in blast pipe 6 is also provided in the built-in yellow phosphorus tail gas pipe 4.

[0015] The burner is made entirely of titanium alloy to enhance corrosion resistance; the yellow phosphorus exhaust gas intake pipe 1 is connected to the yellow phosphorus exhaust gas delivery pipe, and the air blast intake pipe 2 is connected to the external air blast delivery pipe. The air and yellow phosphorus exhaust gas enter the built-in yellow phosphorus exhaust pipe 4 and the connecting shell 3 through the air blast intake pipe 2 and the yellow phosphorus exhaust gas intake pipe 1 respectively. The air in the connecting shell 3 then enters the built-in blast pipe 6 and the air blast pipe 5. The yellow phosphorus exhaust gas flowing out of the built-in yellow phosphorus exhaust pipe 4 is mixed with the air blast pipe 5 and the built-in blast pipe 6 for sufficient combustion.

[0016] like Figure 1As shown, in order to improve the stability of the built-in yellow phosphorus tail pipe 4 and the built-in blast pipe 6, the inner walls of the built-in yellow phosphorus tail pipe 4 and the air blast pipe 5 are respectively provided with support ribs 8 along the radial direction, and the support ribs 8 are respectively connected to the built-in blast pipe 6 and the built-in yellow phosphorus tail pipe 4.

[0017] like Figure 1 As shown, in order to facilitate the maintenance and replacement of parts in the nozzle, the built-in blast pipe 6 is L-shaped, and the corner is provided with an arc angle, the connection end of the built-in blast pipe 6 and the built-in yellow phosphorus tail pipe 4 is provided with an annular protrusion, the outer diameter of the annular protrusion is larger than the inner diameter of the opening at the connection between the built-in yellow phosphorus tail pipe 4 and the built-in blast pipe 6, the built-in blast pipe 6 is threadedly connected with a connecting ring 7, the connecting ring 7 is located outside the built-in yellow phosphorus tail pipe 4, and the outer diameter of the connecting ring 7 is not less than the outer diameter of the annular protrusion.

[0018] After the nozzle is removed, due to the limitation of the built-in yellow phosphorus exhaust pipe 4 and the built-in blower pipe 6 by the supporting rib plate 8, the connecting ring 7 is rotated to separate the connecting ring 7 from the built-in blower pipe 6, and then the built-in blower pipe 6 is taken out from the end of the yellow phosphorus exhaust gas inlet pipe 1, and the surface of the built-in blower pipe 6 and the interior of the built-in yellow phosphorus exhaust pipe 4 can be cleaned or flushed, or replaced.

[0019] As a preferred embodiment of the present invention, in order to further facilitate the replacement and cleaning of the parts inside the burner, the connecting shell 3 is detachably connected to the air blast pipe 5, and a sealing ring is provided at the joint.

[0020] To ensure the sealing of the joint, the movable ends of the yellow phosphorus tail gas intake pipe 1 and the air blast intake pipe 2 are both provided with connecting flanges.

Claims

1. A corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas, characterized in that: The invention comprises a connecting shell (3), wherein an air blast inlet pipe (2) and a yellow phosphorus tail gas inlet pipe (1) are respectively arranged on the top and one side of the connecting shell (3), and an air blast pipe (5) and a built-in yellow phosphorus tail gas pipe (4) are detachably connected to the other side of the connecting shell (3), wherein the built-in yellow phosphorus tail gas pipe (4) is located inside the air blast pipe (5), and the air blast inlet pipe (2) and the yellow phosphorus tail gas inlet pipe (1) are respectively connected to the air blast pipe (5) and the built-in yellow phosphorus tail gas pipe (4), and a built-in blast pipe (6) is also arranged inside the built-in yellow phosphorus tail gas pipe (4).

2. A corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas as claimed in claim 1, characterized in that: Support ribs (8) are arranged radially on the inner walls of the built-in yellow phosphorus tail gas pipe (4) and the air blast pipe (5), respectively, and the support ribs (8) are connected to the built-in blast pipe (6) and the built-in yellow phosphorus tail gas pipe (4), respectively.

3. A corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas as claimed in claim 2, characterized in that: The built-in blast pipe (6) is L-shaped, and an arc angle is provided at the corner portion. An annular protrusion is provided at the connection end of the built-in blast pipe (6) and the built-in yellow phosphorus tail pipe (4). The outer diameter of the annular protrusion is larger than the inner diameter of the opening at the connection between the built-in yellow phosphorus tail pipe (4) and the built-in blast pipe (6). The built-in blast pipe (6) is threadedly connected with a connecting ring (7). The connecting ring (7) is located outside the built-in yellow phosphorus tail pipe (4), and the outer diameter of the connecting ring (7) is not smaller than the outer diameter of the annular protrusion.

4. A corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas as claimed in claim 1, characterized in that: The connecting shell (3) is detachably connected to the air blast pipe (5), and a sealing ring is provided at the joint.

5. A corrosion-resistant burner for efficient combustion of yellow phosphorus tail gas as claimed in claim 1, characterized in that: The movable ends of the yellow phosphorus tail gas intake pipe (1) and the air blast intake pipe (2) are both provided with connecting flanges.

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