CN-122006346-A - Blocking filler type spark trapping device

Abstract

The invention discloses a blocking filler type spark trapping device. The shell (2) is arranged on the upper part or the side part of an original flue in front of the bag-type dust collector, a clean flue gas inlet baffle door (3) is arranged in a flue gas inlet, a corrugated plate type fire remover (4) is arranged above the clean flue gas inlet baffle door (3), a hollow ball filler layer (5) is arranged above the corrugated plate type fire remover (4), a soot blower (6) is arranged above the corrugated plate type fire remover (4) and the hollow ball filler layer (5), a flow guiding device (7) is arranged above the hollow ball filler layer (5), the flow guiding device (7) is positioned at the elbow position of a pipeline, a clean flue gas outlet baffle door (8) is arranged in a flue gas outlet, an original flue gas baffle door (9) is arranged on the original flue, and a pre-trapping plate (1) is arranged in the original flue in a staggered manner. The invention obviously removes sparks in the flue gas, avoids the bag burning of the dust remover, improves the dust removing efficiency, avoids spontaneous combustion of dust in the ash bucket, and improves the production safety.

Inventors

• QIAN YICHEN
• Lv lu
• MA XIAOHUI
• CHEN LI
• NAN JING
• YE CHAO
• PENG RENHONG

Assignees

• 中钢集团天澄环保科技股份有限公司

Dates

Publication Date

20260512

Application Date

20260319

Claims (7)

1. 1. The spark trapping device is characterized by comprising a shell, wherein the shell (2) is formed by fixedly connecting a wall plate, a reinforcing rib, a beam and an inclined strut, the shell (2) is arranged on the upper portion or the side portion of an original flue in front of a bag-type dust collector, the shell (2) is an n-type bent pipeline above the original flue, a clean flue gas inlet baffle door (3) is arranged in a flue gas inlet of the n-type bent pipeline, a corrugated plate type fire remover (4) is arranged above the clean flue gas inlet baffle door (3), a hollow ball filler layer (5), the corrugated plate type fire remover (4) and a soot blower (6) are arranged above the hollow ball filler layer (5), a flow guiding device (7) is arranged above the hollow ball filler layer (5), the flow guiding device (7) is arranged at the position of an elbow of the pipeline, a clean flue gas outlet baffle door (8) is arranged in the n-type bent pipeline, a pre-trapping plate (1) is arranged in the original flue, and the pre-trapping plate (1) is arranged in the original flue and is located below the n-type bent pipeline.
2. 2. The arresting filler type spark trapping device as defined in claim 1, wherein the pre-trapping plate (1) is a wire mesh and is provided with a vibrating ash removing device.
3. 3. The arresting filler type spark capturing device according to claim 1, wherein the corrugated plate type fire eliminator (4) is composed of metal corrugated plate units, the surfaces of the metal corrugated plate units are roughened, the thickness of the metal corrugated plate is 0.5-1.2mm, the inclination angle of the corrugated plate is designed to be 45-60 degrees, and the corrugated plates are arranged in a staggered mode in pairs to form staggered flow passages.
4. 4. The blocking filler type spark capturing device according to claim 1 is characterized in that the hollow ball filler layer (5) is composed of filler, a supporting grid and a pressing device, wherein the filler is hollow ball internal filler, a hollow ball shell is made of high-temperature-resistant organic materials or metal materials, and fireproof fluff is filled in the hollow ball shell.
5. 5. The arresting filler type spark capturing device according to claim 1 is characterized in that the soot blowers (6) are arranged on the side wall surface of the shell (2) and evenly distributed around the corrugated plate type fire arrestor (4) and the hollow ball filler layer (5).
6. 6. A arresting filler type spark-trapping device as claimed in claim 1, characterized in that the soot blower (6) is an acoustic soot blower, consisting of a sound generator, a resonance tube and a program control device.
7. 7. A arresting filler type spark-trapping device as claimed in claim 1, characterized in that the bottom of the original flue is provided with an ash discharge hopper (10).

Description

Blocking filler type spark trapping device Technical Field The invention relates to a spark trapping device in the fields of metallurgy and dust removal and environmental protection, in particular to a blocking filler type spark trapping device. Background The bag type dust collector is used as a mainstream technology of industrial flue gas purification, has fine particle trapping capacity and is top in the dust removal efficiency industry, and plays a key role in realizing the aim of ultra-low emission. Bag house dust collectors, however, still face a number of problems in certain industrial fumes. In certain process flows in the metallurgical industry, such as sintering, electric arc steelmaking, aluminum electrolysis and the like, sparks (high-temperature hot particles) often enter a dust remover along with smoke, so that filter bags are easy to burn through and damage the structure, and filter bag failure, exceeding emission standard and even fire accidents can be seriously caused. Under the high-risk scene, the Mars catcher is used as forced matching equipment of the bag-type dust remover. Traditional spark traps, such as cyclone type, baffle type or metal mesh type, realize the trapping and separation of sparks to a certain extent, but have obvious defects due to design principle and structural limitation. The cyclone type particle filter has large volume but small effective interception area, and Mars particles easily pass through the gaps. Because of the fixed holes, the inserting plate type or metal net type can not adapt to sparks with different particle sizes, especially the sparks in high-speed flue gas are easy to escape for the second time, and the dense arrangement obviously increases the wind resistance of the system. Disclosure of Invention The invention provides a blocking filler type spark trapping device aiming at the problems existing in the prior art. The technical scheme is that the blocking filler type spark capturing device comprises a shell, wherein the shell is formed by fixedly connecting a wall plate, a reinforcing rib, a beam and an inclined strut, the shell is arranged on the upper part or the side part of an original flue in front of a bag-type dust collector, the shell is an n-type pipeline with an elbow above the original flue, a clean flue gas inlet baffle door is arranged in a flue gas inlet of the n-type pipeline with the elbow, a corrugated plate type fire remover is arranged above the clean flue gas inlet baffle door, a hollow ball filler layer, a corrugated plate type fire remover and a soot blower are arranged above the corrugated plate type fire remover, a flow guiding device is arranged above the hollow ball filler layer, the flow guiding device is positioned at the elbow position of the pipeline, a clean flue gas outlet baffle door is arranged in a flue gas outlet of the n-type pipeline with the elbow, a pre-capturing plate is arranged in the original flue in a staggered manner, and the pre-capturing plate is positioned below the flue gas inlet of the n-type pipeline with the elbow. According to the embodiment of the invention, the pre-trapping plate adopts a wire mesh and is provided with a vibration ash removing device. According to the embodiment of the invention, the corrugated plate type fire remover consists of the metal corrugated plate units, the surfaces of the metal corrugated plate units are roughened, the thickness of the metal corrugated plate is 0.5-1.2mm, the inclination angles of the corrugated plates are designed to be 45-60 degrees, and the corrugated plates are arranged in a staggered way in pairs to form staggered flow passages. According to the embodiment of the invention, the hollow sphere packing layer consists of a packing, a supporting grid and a pressing device, wherein the packing is hollow sphere internal packing, a hollow sphere shell is made of high-temperature-resistant organic materials or metal materials, and refractory villus is filled in the hollow sphere shell. According to the embodiment of the invention, the soot blowers are uniformly distributed on the side wall surface of the shell around the corrugated plate type fire arresters and the hollow ball packing layers. According to the embodiment of the invention, the soot blower is an acoustic soot blower and consists of a sounder, a resonance tube and a program control device. According to the embodiment of the invention, the bottom of the original flue is provided with the ash discharge hopper. The spark trapping device is additionally arranged on the upper part or the side part of an original flue, smoke passes through a clean smoke inlet baffle door, a corrugated plate type fire eliminator and a hollow ball packing layer, the spark is removed and then returns to the original flue through a clean smoke outlet baffle door, and the original flue is provided with an original smoke baffle door which can switch the smoke to pass through a pipeline. The surface of the corrugated me