WO2016192400A1 - 一种尾气除尘烟囱 - Google Patents

一种尾气除尘烟囱 Download PDF

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Publication number
WO2016192400A1
WO2016192400A1 PCT/CN2016/072007 CN2016072007W WO2016192400A1 WO 2016192400 A1 WO2016192400 A1 WO 2016192400A1 CN 2016072007 W CN2016072007 W CN 2016072007W WO 2016192400 A1 WO2016192400 A1 WO 2016192400A1
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WO
WIPO (PCT)
Prior art keywords
chimney
cylinder
wall
exhaust gas
air inlets
Prior art date
Application number
PCT/CN2016/072007
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English (en)
French (fr)
Inventor
相庆柱
封丽娟
彭春艳
Original Assignee
连云港宝翔铸造有限公司
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Publication of WO2016192400A1 publication Critical patent/WO2016192400A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes

Definitions

  • the present invention relates to a chimney, and more particularly to an exhaust dust removal chimney.
  • the exhaust gas generated is usually dedusted by water mill, and the power consumption of each vertical kiln is several hundred kilowatts of exhaust fan and a large amount of water; or a vertical setting is adopted. Bacon is directly discharged from the blast without centrifugation.
  • the height of the chimney is generally set at 50-70 meters. Since the chimney is too high, high requirements are imposed on the power of the exhaust gas, which makes the exhaust gas The emission efficiency is low, the emissions are not clean, and it is easy to cause some of the exhaust gas to return to the production environment, pollute the surrounding environment, and endanger the health of the workers.
  • the number of chimneys will be set according to the condition of the vertical kiln, so that the exhaust gas emission cost is high.
  • the technical problem to be solved by the present invention is to provide a tail gas dust-removing chimney with reasonable design, improved exhaust gas emission speed and efficiency, low energy consumption and environmental protection in view of the deficiencies of the prior art.
  • the technical problem to be solved by the present invention is achieved by the following technical solution.
  • the present invention is an exhaust gas dust removal chimney, which is characterized in that a chimney is provided with a concentrated exhaust gas, and the cylinder wall of the middle portion of the chimney is provided.
  • a plurality of air inlets different air inlets are arranged on different working planes, the air inlets are arranged at equal intervals along the circumference of the chimney, and the air inlet is provided with an intake pipe tangential to the wall of the chimney tube, and the air inlet tube is away from the air inlet tube
  • the shower is installed at 3-5 meters of the chimney wall, and the hot exhaust gas and dust in the exhaust gas are mixed with the spray to preheat and then expand and atomize into a haze-like crystal.
  • the negative pressure in the chimney is used to enter the chimney by spiral centrifugation. On the inner wall, the dust particles settle down the inner wall, and the clean exhaust gas is discharged from the upper mouth of the chimney.
  • the technical problem to be solved by the present invention can be further achieved by the following technical solution, wherein the air inlet is arranged in a spiral along the wall of the chimney.
  • the technical problem to be solved by the present invention can be further achieved by the following technical solutions,
  • the ports are vertically spaced at equal intervals.
  • the present invention provides a plurality of high-temperature flue gases generated by sintering cesium by using a plurality of intake pipes to increase the exhaust gas output per unit day, and to improve the discharge efficiency, and these high-temperature flue gases generate thermal power through the external exhaust of the chimney.
  • thermal powers not only can energy saving and consumption reduce, the gas entering the chimney spirals upward, and the centrifugal force of centrifugal dust removal is stronger, the misty crystals in the exhaust gas are poured into the inner wall of the chimney, and the downward sedimentation along the inner wall can be achieved without pollution.
  • the pipe wall of the intake pipe is tangent to the wall of the chimney, so that the gas entering the chimney is spirally raised, centrifugally dedusting, increasing the rising speed of the gas, and the rising power relies on the negative pressure inside the chimney to save the exhaust cost; different intake air
  • the mouth is arranged on different sections of the chimney so that the spiraling trajectories do not overlap, further improving the spinning power.
  • the design is reasonable, the structure is simple, and the utility model has the advantages of better dust removal effect and spinning power, and improves the exhaust gas discharge speed.
  • FIG. 2 is a plan view of FIG. 1.
  • an exhaust dust removing chimney is provided with a chimney 1 for concentrating exhaust gas, in the middle of the chimney
  • the air wall of the cylinder is provided with a plurality of air inlets 3, the different air inlets are arranged on different working planes, the air inlets are arranged at equal intervals along the circumference of the chimney, and the air inlets are provided tangential to the wall of the chimney tube.
  • a sprinkler is installed at a distance of 3-5 meters from the wall of the chimney, and the hot exhaust gas and dust in the exhaust gas are mixed with the spray to preheat and then expand and atomize into a haze-like crystal, relying on the negative pressure in the chimney. After being spirally centrifuged into the inner wall of the chimney, the fine dust particles settle down along the inner wall, and the clean exhaust gas is discharged from the upper mouth of the chimney.
  • the air inlets 3 are arranged in a spiral along the wall of the chimney 1, and the air inlets 3 are vertically arranged at equal intervals.
  • the diameter of the intake pipe 2 is the same.
  • the chimney 1 is a cone-shaped cylinder that is large and small.
  • the utility model utilizes the thermal power of the kiln without power, improves the exhaust emission of the unit day by the principle of tornado, improves the environmental protection efficiency of the discharge energy saving and the dust elimination, and the pipe wall of the intake pipe is tangent to the wall of the bacon.
  • the centrifugal wind rising into the bacon is centrifugally raised, and the rising speed of the exhaust gas in the bacon is increased without power.
  • the sprinkler is installed at a distance of 3-5 meters from the wall of the chimney. The more the kiln, the greater the thermal power. The higher the spiraling effect is, the stronger the centrifugal force is.
  • the hot exhaust gas and dust in the exhaust gas are mixed with the spray and preheated, and then expanded and atomized into a haze-like crystal body, which is spirally centrifuged into the inner wall of the chimney and settles down the inner wall.
  • a haze-like crystal body which is spirally centrifuged into the inner wall of the chimney and settles down the inner wall.
  • different intake pipes are arranged on different sections of the chimney, so that the spiral centrifugal rise does not overlap the trajectory, and the centrifugal lift power is centrifugally dusted under the rotary power.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Cyclones (AREA)
  • Chimneys And Flues (AREA)

Abstract

一种尾气除尘烟囱，设有集中排放尾气的烟筒（1），烟筒（1）为上小下大的锥状筒，在烟筒（1）中部的筒壁上设有若干进气口（3），不同的进气口（3）设置在不同的工作平面上，进气口（3）沿烟筒（1）的周向及竖向等间距设置，并同时沿烟筒（1）的筒壁呈螺旋式排布，进气口（3）处设有与烟筒（1）筒壁相切的进气管（2），进气管（2）的管径相同，在进气管（2）离烟筒（1）墙壁3到5米处安装喷淋器，将在尾气中的热废气及粉尘与喷淋混合预热后膨胀雾化成雾霾状结晶体，依靠烟筒（1）内的负压，经螺旋式离心甩入烟筒（1）内壁上，微尘颗粒顺着内壁向下沉降，清洁尾气由烟囱上口排放，该烟囱能够提高尾气排放速度和效率，低能耗环保。

Description

说明书 发明名称：一种尾气除尘烟囱
技术领域
[0001] 本发明涉及一种烟囱， 特别涉及一种尾气除尘烟囱。
背景技术
[0002] 现有镍矿生产过程中， 产生的尾气通常都是使用水磨除尘， 其耗电量每台立窑 都在几百千瓦抽风机及大量的水； 或是采用一根竖向设置的烟肉中不旋风离心 直接排放出去， 为减少尾气的污染， 一般会将烟囱的高度设置在 50-70米， 由于 烟囱太高， 对尾气排放的动力提出了较高的要求， 这就使得尾气的排放效率低 ， 排放不干净， 极易导致部分尾气回流至生产环境， 污染周边环境， 危害工人 的身体健康， 同吋， 烟筒的个数会根据立窑的情况进行设置使得尾气排放成本 高。
技术问题
[0003] 本发明所要解决的技术问题是针对现有技术的不足， 提供一种设计合理， 提高 尾气排放速度和效率， 低能耗环保的尾气除尘烟囱。
问题的解决方案
技术解决方案
[0004] 本发明所要解决的技术问题是通过以下的技术方案来实现的， 本发明是一种尾 气除尘烟囱， 其特点是， 设有集中排放尾气的烟筒， 在烟筒中部的筒壁上设有 若干进气口， 不同的进气口设置在不同的工作平面上， 进气口沿烟筒的周向等 间距设置， 进气口处设有与烟筒筒壁相切的进气管,在进气管离烟筒墙壁 3-5米 处安装喷淋器，将在尾气中的热废气及粉尘与喷淋混合预热后膨胀雾化成雾霾状 结晶体， 依靠烟筒内的负压， 经螺旋式离心甩入烟筒内壁上， 微尘颗粒顺着内 壁向下沉降， 清洁尾气由烟囱上口排放。
[0005] 本发明所要解决的技术问题还可以通过以下的技术方案来进一步实现， 所述进 气口沿烟筒的筒壁呈螺旋式排布。
[0006] 本发明所要解决的技术问题还可以通过以下的技术方案来进一步实现， 所述进 气口竖向等间距设置。
[0007] 本发明所要解决的技术问题还可以通过以下的技术方案来进一步实现， 所述进 气管的管径相同。
[0008] 本发明所要解决的技术问题还可以通过以下的技术方案来进一步实现， 所述的 烟筒为上小下大的锥状筒。
发明的有益效果
有益效果
[0009] 本发明通过设若干进气管， 提高单位吋间尾气排放量， 提高排放效率， 禾 ij用烧 结吋产生的大量高温烟气， 这些高温烟气通过烟筒外排吋会形成热动力， 充分 利用这些热动力， 不但可以节能降耗， 使得进入烟筒中的气体螺旋上升， 离心 除尘离心力越强将尾气中的雾霾状结晶体甩入烟筒内壁上， 顺着内壁向下沉降 而且可以不污染达标排放； 进气管的管壁与烟筒的筒壁相切， 使得进入烟筒中 的气体螺旋上升， 离心除尘， 提高气体的上升速度， 上升动力依靠烟筒内负压 ， 节省排气成本； 不同的进气口设置在烟筒的不同截面上， 使得旋升轨迹不重 叠， 进一步提高旋升动力。 与现有技术相比， 其设计合理， 结构简单， 使用方 便具有较好的除尘效果和旋升动力， 提高了尾气的排放速度。
对附图的简要说明
附图说明
[0010] 图 1是本发明的结构示意图；
[0011] 图 2是图 1的平面展幵图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0012] 以下参照附图， 进一步描述本发明的具体技术方案， 以便于本领域的技术人员 进一步地理解本发明， 而不构成对其权利的限制。
本发明的实施方式
[0013] 参照图 1和图 2， 一种尾气除尘烟囱， 设有集中排放尾气的烟筒 1， 在烟筒中部 的筒壁上设有若干进气口 3， 不同的进气口设置在不同的工作平面上， 进气口沿 烟筒的周向等间距设置， 进气口处设有与烟筒筒壁相切的进气管 2,在进气管离 烟筒墙壁 3-5米处安装喷淋器,将在尾气中的热废气及粉尘与喷淋混合预热后膨胀 雾化成雾霾状结晶体， 依靠烟筒内的负压， 经螺旋式离心甩入烟筒内壁上， 微 尘颗粒顺着内壁向下沉降， 清洁尾气由烟囱上口排放。
[0014] 所述进气口 3沿烟筒 1的筒壁呈螺旋式排布， 所述进气口 3竖向等间距设置。
[0015] 所述进气管 2的管径相同。
[0016] 所述的烟筒 1为上小下大的锥状筒。
[0017] 在无需动力的情况下利用窑炉的热动力， 以龙卷风的原理提高单位吋间尾气排 放量， 提高排放节能减排除尘环保效率， 进气管的管壁与烟肉的筒壁相切， 使 得进入烟肉中的风螺旋离心式上升， 提高尾气在烟肉内的上升速度无需动力， 在进气管离烟筒墙壁 3-5米处安装喷淋器， 窑炉越多其热动力越大螺旋上升效果 越高离心力越强， 将在尾气中的热废气及粉尘与喷淋混合预热后膨胀雾化成雾 霾状结晶体， 经螺旋式离心甩入烟筒内壁上， 顺着内壁向下沉降， 达到除尘环 保， 直接依靠烟筒内的负压， 节省排气成本； 不同的进气管设置在烟筒的不同 截面上， 使得螺旋离心式上升其轨迹不重叠， 提高旋升动力在旋升动力下离心 除尘， 经本公司使用与前期对比每台立窑省电 5000度 /日左右， 收回粉尘 10吨左 右， 我公司现已改造 6台， 其效果非常明显。

Claims

权利要求书
一种尾气除尘烟囱， 其特征在于： 设有集中排放尾气的烟筒， 在烟筒 中部的筒壁上设有若干进气口， 不同的进气口设置在不同的工作平面 上， 进气口沿烟筒的周向等间距设置， 进气口处设有与烟筒筒壁相切 的进气管,在进气管离烟筒墙壁 3-5米处安装喷淋器,将在尾气中的热 废气及粉尘与喷淋混合预热后膨胀雾化成雾霾状结晶体， 依靠烟筒内 的负压， 经螺旋式离心甩入烟筒内壁上， 微尘颗粒顺着内壁向下沉降 ， 清洁尾气由烟囱上口排放。
根据权利要求 1所述的尾气除尘烟肉， 其特征在于： 所述进气口沿烟 筒的筒壁呈螺旋式排布。
根据权利要求 2所述的尾气除尘烟肉， 其特征在于： 所述进气口竖向 等间距设置。
根据权利要求 1所述的尾气除尘烟肉， 其特征在于： 所述进气口的直 径相同。
根据权利要求 1所述的尾气除尘烟肉， 其特征在于： 所述的烟筒为上 小下大的锥状筒。
PCT/CN2016/072007 2015-06-01 2016-01-25 一种尾气除尘烟囱 WO2016192400A1 (zh)

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CN114534377A (zh) * 2022-02-14 2022-05-27 山东莱钢永锋钢铁有限公司 一种减少湿法脱硫直排烟囱水滴携带的装置及施工方法

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CN112179152A (zh) * 2019-09-03 2021-01-05 相庆柱 一种螺旋离心烟筒

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CN105107365A (zh) * 2015-09-15 2015-12-02 北京国能中电节能环保技术有限责任公司 烟气复合相变除尘脱硫工艺及装置

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CN114534377A (zh) * 2022-02-14 2022-05-27 山东莱钢永锋钢铁有限公司 一种减少湿法脱硫直排烟囱水滴携带的装置及施工方法
CN114534377B (zh) * 2022-02-14 2023-05-16 山东莱钢永锋钢铁有限公司 一种减少湿法脱硫直排烟囱水滴携带的装置及施工方法

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