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CN-121988471-A - Waste acid liquid atomizing spray gun and application method thereof

CN121988471ACN 121988471 ACN121988471 ACN 121988471ACN-121988471-A

Abstract

The invention provides a waste acid liquid atomizing spray gun and a use method thereof, and belongs to the fields of chemical environment-friendly technology and industrial combustion equipment. Solves the problem that the waste acid atomizing spray gun is easy to be blocked by sulfur crystallization at low temperature and has poor atomizing effect, thereby leading to larger liquid drops. The heat tracing system is sleeved on the outer side of the liquid sulfur pipe, the atomization wind cavity structure is sleeved on the outer side of the heat tracing system, the heat tracing system comprises an inner heat tracing pipe and an outer heat tracing pipe, the inner heat tracing pipe is sleeved on the outer side of the liquid sulfur pipe, the outer heat tracing pipe is sleeved on the outer side of the inner heat tracing pipe, a closed heat tracing cavity is formed between the inner heat tracing pipe and the outer heat tracing pipe and between the outer heat tracing pipe and the liquid sulfur pipe, the atomization structure comprises an atomization wind sleeve and an atomization nozzle, the atomization wind sleeve is sleeved on the outer side of the outer heat tracing pipe, the outlet end of the atomization wind sleeve is connected with the atomization nozzle, an atomization wind cavity is formed between the atomization wind sleeve and the outer heat tracing pipe, and an annular channel is formed on the atomization nozzle.

Inventors

  • ZHU HONGLIANG
  • SHANG LI
  • ZENG XIANGYU
  • YE YUNFEI
  • WANG HONGWEI
  • Luan ze
  • LI NA
  • AN ZHANLI
  • PENG XIANGDONG

Assignees

  • 哈尔滨博奥环境技术有限公司

Dates

Publication Date
20260508
Application Date
20260409

Claims (10)

  1. 1. The waste acid liquid atomizing spray gun is characterized by comprising a liquid sulfur pipe (1), a heat tracing system and an atomizing air cavity structure, wherein the heat tracing system is sleeved outside the liquid sulfur pipe (1), the atomizing air cavity structure is sleeved outside the heat tracing system, the heat tracing system comprises an inner heat tracing pipe (2) and an outer heat tracing pipe (3), the inner heat tracing pipe (2) is sleeved outside the liquid sulfur pipe (1), the outer heat tracing pipe (3) is sleeved outside the inner heat tracing pipe (2), a closed heat tracing cavity is formed between the inner heat tracing pipe (2) and the outer heat tracing pipe (3) and between the outer heat tracing pipe (3) and the liquid sulfur pipe (1), the atomizing air cavity structure comprises an atomizing air sleeve and an atomizing nozzle (6), the atomizing air sleeve is sleeved outside the outer heat tracing pipe (3), the outlet end of the atomizing air sleeve is connected with the atomizing nozzle (6), an atomizing air cavity is formed between the atomizing air sleeve and the outer heat tracing pipe (3), and an annular channel is formed on the atomizing nozzle (6).
  2. 2. A spray gun for atomizing waste acid according to claim 1, further comprising a connecting flange (7), wherein the inlet end of the liquid sulfur tube (1) is connected with the central hole of the connecting flange (7).
  3. 3. The waste acid liquid atomizing spray gun of claim 2, wherein one end of the inner heat tracing pipe (2) is connected with the connecting flange (7), one end of the outer heat tracing pipe (3) is connected with the inner heat tracing pipe (2) through the first end plate (8), and the other end of the outer heat tracing pipe (3) is connected with the liquid sulfur pipe (1) through the fourth end plate (11).
  4. 4. The waste acid liquid atomizing spray gun according to claim 1, wherein the inner layer heat tracing pipe (2) is provided with a heat tracing pipe inlet (12) communicated with the heat tracing cavity, and the outer layer heat tracing pipe (3) is provided with a heat tracing pipe outlet (13) communicated with the heat tracing cavity.
  5. 5. The waste acid liquid atomizing spray gun of claim 1, wherein the atomizing air sleeve comprises an atomizing air upper sleeve (4) and an atomizing air lower sleeve (5), the outlet end of the atomizing air lower sleeve (5) is connected with the atomizing nozzle (6), the inlet end of the atomizing air lower sleeve (5) is sleeved on the outer side of the outer layer heat tracing pipe (3), one end of the atomizing air upper sleeve (4) is connected with the outer layer heat tracing pipe (3) through a second end plate (9), and the other end of the atomizing air upper sleeve is connected with the atomizing air lower sleeve (5) through a third end plate (10).
  6. 6. A waste acid liquid atomizing spray gun according to claim 5, wherein an atomizing air inlet (14) communicated with an atomizing air cavity is arranged on the atomizing air upper pipe sleeve (4).
  7. 7. A spray gun for atomizing waste acid liquid according to claim 1, wherein the center of the atomizing nozzle (6) is provided with a conical cavity, and the inlet of the conical cavity is communicated with the outlet of the liquid sulfur pipe (1).
  8. 8. The waste acid liquid atomizing spray gun according to claim 1, wherein a plurality of inner guide rings (15) are arranged on the inner wall of the inner heat tracing pipe (2), and a plurality of outer guide rings (16) are arranged on the outer wall of the outer heat tracing pipe (3).
  9. 9. A spray gun for atomizing waste acid liquid according to claim 1, wherein the atomizing nozzle (6) is made of alloy, and the liquid sulfur tube (1) is made of high temperature resistant and corrosion resistant stainless steel.
  10. 10. A method of using the spray gun for atomizing waste acid liquid according to claim 1, comprising the steps of: s1, introducing a heat tracing medium into a heat tracing cavity formed by an inner heat tracing pipe (2) and an outer heat tracing pipe (3) for circulation; S2, conveying the waste acid liquid to an atomization nozzle (6) through a liquid sulfur pipe (1); s3, introducing an atomization medium into an atomization air cavity formed by an atomization air sleeve; And S4, enabling the atomizing medium to form jet flow at the atomizing nozzle (6) so as to impact the waste acid liquid flowing out of the atomizing nozzle (6) to realize atomization.

Description

Waste acid liquid atomizing spray gun and application method thereof Technical Field The invention belongs to the fields of chemical environment-friendly technology and industrial combustion equipment, and particularly relates to a waste acid liquid atomizing spray gun and a use method thereof. Background In the waste acid regeneration process, the waste acid liquid is subjected to high-temperature pyrolysis through an incinerator to be converted into sulfur-containing gas, the sulfur component in the gas is converted into sulfur trioxide SO 3 through catalytic oxidation, and finally SO 3 is condensed and absorbed to prepare sulfuric acid, and in the process, a waste acid atomizing spray gun is a key device arranged on the incinerator and has the core function of atomizing the waste acid liquid to be treated into fine liquid drops and spraying the fine liquid drops into the incinerator SO as to ensure the full progress of subsequent pyrolysis reaction. Therefore, the atomization effect of the spray gun and the service life of the spray gun are directly related to the cracking efficiency of waste acid and the operation stability of the whole production device. At present, a double-fluid atomizing spray gun is commonly adopted in the technical field, and the main flow technical scheme is that compressed air and waste acid liquid are mixed in the spray gun or at an outlet to realize atomization. However, the atomization effect of the prior art is not ideal, the particle size of the generated liquid drops is larger, the difficulty of completely cracking waste acid in the incinerator is further increased, the yield and quality of the final product are affected, the prior spray gun generally lacks effective heat tracing measures, when the waste acid liquid with lower treatment temperature is treated, sulfur components in the waste acid liquid are easily crystallized and separated out in the spray gun and at the outlet, so that a flow channel is blocked, the blocking problem not only forces the device to stop in an unplanned manner, but also simultaneously the crystallization and low-temperature environment jointly aggravate the electrochemical corrosion and chemical corrosion of the acid liquid on the spray gun body, the service life of the spray gun is obviously shortened, the atomization effect is poor, and the problems of easy blocking and easy corrosion caused by no heat tracing exist, so that the conventional double-fluid atomization spray gun has serious defects in reliability and durability, and the strict requirements of the modern chemical production on long-term, stable and efficient operation of the device are difficult to be satisfied. Disclosure of Invention In view of the above, the invention aims to provide a waste acid atomizing spray gun and a use method thereof, so as to solve the problems that the existing waste acid atomizing spray gun is easy to be blocked by sulfur crystallization at low temperature, has poor atomizing effect, causes larger liquid drops, and further aggravates corrosion and shortens the service life. The waste acid liquid atomizing spray gun comprises a liquid sulfur pipe, a heat tracing system and an atomizing structure, wherein the heat tracing system is sleeved on the outer side of the liquid sulfur pipe, the atomizing air cavity structure is sleeved on the outer side of the heat tracing system, the heat tracing system comprises an inner heat tracing pipe and an outer heat tracing pipe, the inner heat tracing pipe is sleeved on the outer side of the liquid sulfur pipe, the outer heat tracing pipe is sleeved on the outer side of the inner heat tracing pipe, a closed heat tracing cavity is formed between the inner heat tracing pipe and the outer heat tracing pipe and between the outer heat tracing pipe and the liquid sulfur pipe, the atomizing structure comprises an atomizing air sleeve and an atomizing nozzle, the atomizing air sleeve is sleeved on the outer side of the outer heat tracing pipe, the outlet end of the atomizing air sleeve is connected with the atomizing nozzle, an atomizing air cavity is formed between the atomizing air sleeve and the outer heat tracing pipe, and an annular channel is arranged on the atomizing nozzle. Still further, the atomizing spray gun also comprises a connecting flange, and the inlet end of the liquid sulfur pipe is connected with a central hole of the connecting flange. Further, one end of the inner layer heat tracing pipe is connected with the connecting flange, one end of the outer layer heat tracing pipe is connected with the inner layer heat tracing pipe through the first end plate, and the other end of the outer layer heat tracing pipe is connected with the liquid sulfur pipe through the fourth end plate. Further, the inner layer heat tracing pipe is provided with a heat tracing pipe inlet communicated with the heat tracing cavity, and the outer layer heat tracing pipe is provided with a heat tracing pipe outlet communicated with