CN103111131B - Integrated process and special filter for dedusting and desulfurization of submerged arc furnace gas - Google Patents

Integrated process and special filter for dedusting and desulfurization of submerged arc furnace gas Download PDF

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CN103111131B
CN103111131B CN201210590043.0A CN201210590043A CN103111131B CN 103111131 B CN103111131 B CN 103111131B CN 201210590043 A CN201210590043 A CN 201210590043A CN 103111131 B CN103111131 B CN 103111131B
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filter element
gas
dust
plate
submerged arc
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CN201210590043.0A
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CN103111131A (en
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高麟
汪涛
林勇
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成都易态科技有限公司
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Abstract

本发明公开了一种能够同时实现除尘和脱硫的矿热炉炉气除尘脱硫一体化工艺。 The present invention discloses a submerged arc furnace dust gas desulfurizing process for desulfurization and dust removal can be achieved simultaneously. 本发明的矿热炉炉气除尘脱硫一体化工艺,所述炉气中含有固体粉尘、二氧化硫、金属元素及其他存在的物质,该工艺包括的步骤为:使炉气在过滤器中从过滤元件的迎风面向背风面运动;通过高压放电发生装置在所述迎风面前产生高压放电场;通过高压放电场促发炉气中的二氧化硫与金属元素反应生成硫酸盐、亚硫酸盐、亚硫酸氢盐中的至少一种固体微粒;通过过滤元件将所述固体微粒与炉气中本身所含的固体粉尘一起截留于过滤元件的迎风面一侧,其他不能被截留的物质则从过滤元件中通过。 Submerged arc furnace gas dust desulfurizing process of the present invention, a furnace gas containing the solid dust, sulfur, metals and other substances present, the process comprising the steps of: that the furnace gas in the filter element from the filter facing the leeward side of the windward motion; generating a high voltage discharge through the wind field in front of the high-voltage discharge generator; priming furnace gas sulfur dioxide with the metal element by a high pressure discharge reaction field sulfate, sulfite, bisulfite salt at least one solid particulate; through the filter element the solid dust and solid particles contained in the furnace gas itself trapped in the filter element windward together, the other can not be retained by the material from the filter element. 本发明通过化学及物理方法能够同时将炉气中的二氧化硫及固体粉尘分离出来,达到一体净化效果。 The present invention also can be isolated by chemical and physical methods oven gas with sulfur dioxide and solid dust, to integrally purification.

Description

矿热炉炉气除尘脱硫一体化工艺及专用过滤器 Submerged arc furnace gas dust desulfurizing process and special filters

技术领域 FIELD

[0001] 本发明涉及矿热炉炉气净化技术,具体涉及矿热炉炉气除尘脱硫一体化工艺及专用过滤器。 [0001] The present invention relates to submerged arc furnace gas purification technology, in particular to a submerged arc furnace dust gas desulfurizing process and special filters.

背景技术 Background technique

[0002] 现有的等离子体烟气脱硫技术主要包括电子束法烟气脱硫技术(简称EBA)和脉冲电晕法烟气脱硫技术(简称PPCP)。 [0002] The conventional plasma flue gas desulphurization technology includes an electron beam flue gas desulfurization technology (EBA) and pulsed corona flue gas desulfurization technology (PPCP). 电子束法烟气脱硫技术是在反应器中通过电子加速器产生的电子束辐照烟气,利用产生的自由基活性基团氧化烟气中的二氧化硫和氮氧化物,然后同投加的氨反应,生成硫酸铵颗粒和硝酸铵颗粒,最终实现污染物脱除。 Electron beam flue gas desulfurization technology of electron beam irradiation of flue gas in the reactor is produced by an electron accelerator, a radical reactive group of Flue Gas using the generated sulfur dioxide and nitrogen oxides and ammonia with the reaction adding , ammonium sulfate and ammonium nitrate particles particles, ultimately contaminant removal. 脉冲电晕法烟气脱硫技术的脱硫脱硝机理与电子束法烟气脱硫技术基本相同,区别在与它用高压脉冲电源代替了电子束法中的电子加速器,在反应器中产生高压窄脉冲电晕场,从而促发烟气中的二氧化硫、氮氧化物分别与氨反应生成硫酸铵颗粒和硝酸铵颗粒。 Desulfurization of flue gas desulfurization and denitration Pulsed Corona Discharge Mechanism of the electron beam is substantially the same FGD technology, it is replaced with the difference in electron accelerator electron beam method using high-voltage pulse power source, high voltage narrow pulse generated in the reactor corona field, thereby precipitating sulfur dioxide in flue gas, nitrogen oxides and particulate ammonium nitrate particles are ammonium sulphate reacts with the ammonia. 虽然上述这些等离子体烟气脱硫技术有着可同时脱硫脱硝等传统脱硫技术无法比拟的优点,但是它们的反应器均不能将产生的硫酸铵颗粒、硝酸铵颗粒以及烟气中本身所含的固体粉尘从烟气中分离出来,因此在反应器之后还必须装备除尘设备,增大了技术实施成本。 Although these plasma FGD technology has the advantage of simultaneous desulfurization and denitration traditional desulfurization unmatched, but ammonium sulfate particles thereof can not produced by the reactor, the ammonium nitrate particles and the flue gas itself contains solid dust separated from the flue gas, so after the reactor must also be equipped with dust removing equipment, it increases the cost of implementation technology.

发明内容 SUMMARY

[0003] 本发明旨在提供一种能够同时实现除尘和脱硫的矿热炉炉气除尘脱硫一体化工 [0003] The present invention seeks to provide a desulfurization and dust removal can be achieved while the submerged arc furnace gas dust desulfurizing ENGINEERING

-H- -H-

O O

[0004] 本发明的矿热炉炉气除尘脱硫一体化工艺,所述炉气中含有固体粉尘、二氧化硫、金属元素及其他存在的物质,该工艺包括的步骤为:使炉气在过滤器中从过滤元件的迎风面向背风面运动;通过高压放电发生装置在所述迎风面前产生高压放电场;通过高压放电场促发炉气中的二氧化硫与金属元素反应生成硫酸盐、亚硫酸盐、亚硫酸氢盐中的至少一种固体微粒;通过过滤元件将所述固体微粒与炉气中本身所含的固体粉尘一起截留于过滤元件的迎风面一侧,其他不能被截留的物质则从过滤元件中通过。 [0004] The submerged arc furnace dust gas desulfurizing process, said step of furnace gas containing the solid dust, sulfur, metals and other substances present, including the process of the present invention are: that the furnace gas in the filter upwind from the filter element facing the leeward side of the movement; generating a high voltage discharge through the wind field in front of the high-voltage discharge generator; sulfates trigger generating sulfur dioxide in the furnace gas by reaction with the metal element a high voltage discharge field, sulfite, bisulfite solid particles of at least one hydrogen salt; through the filter element the solid dust and solid particles contained in the furnace gas itself trapped windward with the filter element, the other can not be entrapped material from the filter element by.

[0005] 本发明的上述矿热炉炉气除尘脱硫一体净化工艺将等离子体炉气脱硫技术与炉气过滤除尘进行了有机的结合。 [0005] The submerged arc furnace Gas Desulfurization purification process of the present invention is integrally dust filter and a plasma furnace gas desulfurization furnace gas combined organic performed. 在该工艺的实施过程中,炉气中本身所含的固体粉尘会逐渐在过滤元件的迎风面上形成滤饼层,滤饼层上的孔道比过滤元件上的孔道更小,从而使反应生成的硫酸盐、亚硫酸盐、亚硫酸氢盐中的至少一种固体微粒难以通过。 In the implementation of the process, the solid dust contained in the furnace gas itself will gradually form a cake layer on the windward side of the filter element, is smaller than the pore channels cake layer on the filter element, so that the reaction product sulfate, sulfite, bisulfite at least one solid particles difficult to pass. 因此,本发明通过化学及物理方法能够同时将炉气中的二氧化硫及固体粉尘分离出来,达到一体净化效果O Accordingly, the present invention is capable of simultaneously separating sulfur dioxide in the furnace gas and solid dust out by chemical and physical methods, to achieve the purification effect integrally O

[0006] 下面结合附图和具体实施方式对本发明做进一步的说明。 [0006] The present invention will be further illustrated in conjunction with the accompanying drawings and specific embodiments. 本发明附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本发明的实践了解到。 Additional aspects and advantages of the present invention will be given in part in the description which follows, from the following description in part be apparent from, or learned by practice of the present invention.

附图说明 BRIEF DESCRIPTION

[0007] 图1为本发明实施例1的除尘脱硫一体净化示意图。 [0007] FIG. 1 is integrally purification schematic Desulfurization Example 1 of the present invention.

[0008] 图2为本发明实施例2的除尘脱硫一体净化示意图。 [0008] FIG 2 is integrally purification schematic Desulfurization Example 2 of the present invention.

[0009] 图3为本发明实施例3的除尘脱硫一体净化示意图。 [0009] FIG. 3 is integrally schematic Desulfurization Example 3 Purification of the embodiment of the present invention.

[0010] 图4为实施本发明实施例3的除尘脱硫一体化工艺的过滤器结构示意图。 Integrated process schematic structure of the filter dust removal and desulfurization of Example 3 [0010] FIG. 4 is a embodiment of the present invention embodiment.

具体实施方式 Detailed ways

[0011] 如图1所示,本发明实施例1的矿热炉炉气除尘脱硫一体化工艺通过高压放电发生装置I在过滤器中位于过滤元件3的迎风面前产生一高压放电场,具体而言,该高压放电场是由从电子加速器101产生并经电子枪102向外福射的电子束103所形成。 [0011] Figure 1, embodiments of the present invention, submerged arc furnace dust desulfurizing process gas by means of a high voltage discharge occurs in the filter I of the filter element 3 in front of the wind to generate a high-voltage discharge field, and the specific words, the high-voltage discharge field is generated from electron accelerators 101 and 102 by the electron gun of an electron beam emitted outwardly Fu 103 is formed. 含有固体粉尘、二氧化硫、金属元素及其他物质的炉气2以图1中箭头所示方向通过该高压放电场,其间,如果该炉气2中含有水蒸汽,则高压放电场将二氧化硫离子化形成SO厂,并从水蒸汽中激发出氧化性极强的自由基活性基团,从而将so2n-氧化为硫酸根离子或亚硫酸氢根离子,所述硫酸根离子或亚硫酸氢根离子再与炉气2中的金属元素反应生成硫酸盐或亚硫酸氢盐的固体微粒202,同时S02n_带电粒子会在电场中形成定向移动,在移动过程中与灰尘中的各种金属物质进行充分接触,使反应更加充分,另外,在滤芯的表面上附近,形成的浓度梯度也会增加这种反应的进行;如果该炉气2中不含水蒸汽等能够产生所述自由基活性基团的物质,则二氧化硫从高压放电场中得到电子并与炉气2中的金属元素反应生成亚硫酸盐的固体微粒202 ;由于炉气2中本身所含的固体 Solids containing dust, sulfur dioxide, a metal element furnace gas and other substances in the direction indicated by an arrow 2 in FIG. 1 by the high voltage discharge field therebetween, if the gas contains water vapor in the furnace 2, the high voltage discharge ionization field will form sulfur dioxide sO plant, and the excitation from the water vapor of the strong oxidizing free radical reactive groups, thereby so2n- oxidized to hydrogen sulfate ion or sulfite ion, bisulfite ion or a sulfate ion and then the metal element furnace gas 2 reaction sulphate or bisulphite solid particles 202, while S02n_ charged particles move in the electric field orientation is formed, a sufficient contact with the dust of various metal species during movement, the reaction more fully, Further, in the vicinity of the upper surface of the filter, also increases the concentration gradient is formed for this reaction; if the furnace gas 2 can be free of water vapor generating material of the free radical reactive groups, the electronic high-voltage discharge resulting from the sulfur dioxide in the field and in the metal element furnace gas 2 reaction of solid particulate sulfite 202; because the solid itself is contained in the furnace gas 2 尘201会逐渐在过滤元件3的迎风面上形成滤饼层,滤饼层增强了过滤元件3对固体微粒202的截留效果,从而使固体微粒202与炉气2中本身所含的固体粉尘201 —起被截留于该过滤元件3的迎风面一侧,而其他不能被截留的物质则从过滤元件3中通过并进入过滤元件3的背风面一侧。 Dust 201 will gradually form a cake layer on the windward side of the filter element 3, the cake layer enhances the effect of entrapping solid particles 3 of the filter element 202, so that the solid particles 202 and 201 in the solid dust furnace gas itself contains 2 - from being trapped on the windward side of the filter element 3, while the other can not be retained by the material from the filter element 3 and into the filter element 3 of the leeward.

[0012] 如图2所示,本发明实施例2的矿热炉炉气除尘脱硫一体化工艺仍通过高压放电发生装置I在过滤器中位于过滤元件3的迎风面前产生一高压放电场,具体而言,该高压放电场是由为导体且兼作高压放电发生装置电极的过滤元件3、位于该过滤元件3的迎风面前并与过滤元件3间隔一定距离的电极线105以及分别与所述过滤元件3和电极线105电连接的高压电源104所产生的电晕106形成。 [0012] 2, by a high voltage discharge remained in the filter unit I of the filter element 3 in front of the wind to generate a high-pressure gas discharge field generating submerged arc furnace dust desulfurizing process of Example 2 of the present invention, particularly For the field of high-voltage discharge and also serves as a high-voltage discharge electrode of the filter element 3 occurs by means of a conductor, positioned in front of the wind of the filter element and the filter element 3 and the third electrode line 105 and spaced a distance from each of the filter element the corona high voltage power supply 1043 and the electrode 105 is electrically connected to the wire 106 generated form. 含有固体粉尘、二氧化硫、金属元素及其他物质的炉气2以图2中箭头所示方向通过该高压放电场,其间,如果该炉气2中含有水蒸汽,则高压放电场将二氧化硫离子化形成SO2'并从水蒸汽中激发出氧化性极强的自由基活性基团,从而将S02n_氧化为硫酸根离子或亚硫酸氢根离子,所述硫酸根离子或亚硫酸氢根离子再与炉气2中的金属元素反应生成硫酸盐或亚硫酸氢盐的固体微粒202,同时SO21"带电粒子会在电场中形成定向移动,在移动过程中与灰尘中的各种金属物质进行充分接触,使反应更加充分,另外,在滤芯的表面上附近,形成的浓度梯度也会增加这种反应的进行;如果该炉气2中不含水蒸汽等能够产生所述自由基活性基团的物质,则二氧化硫从高压放电场中得到电子并与炉气2中的金属元素反应生成亚硫酸盐的固体微粒202 ;由于炉气2中本身所含的固体粉 Solids containing dust, sulfur dioxide, a metal element furnace gas and other substances in the direction indicated by an arrow 2 in FIG. 2 by the high voltage discharge field therebetween, if the gas contains water vapor in the furnace 2, the high voltage discharge ionization field will form sulfur dioxide SO2 'and the excitation from the water vapor of the strong oxidizing free radical reactive groups, thereby S02n_ oxidized to sulfate ion or hydrogen sulfite ion, bisulfite ion or a sulfate ion and then oven metallic elements 2 gas reacts sulphate or bisulphite solid particles 202, while SO21 "directional movement of charged particles in an electric field is formed, a sufficient contact with the dust of various metal species during movement, so that the reaction more fully, Further, in the vicinity of the upper surface of the filter, also increases the concentration gradient is formed for this reaction; if the furnace gas 2 can be free of water vapor generating material of the free radical reactive groups, the sulfur dioxide electronic high-voltage discharge resulting from the field and the metal element furnace gas 2 reaction of solid particulate sulfite 202; because the furnace gas itself contains solid powder 2 201会逐渐在过滤元件3的迎风面上形成滤饼层,滤饼层增强了过滤元件3对固体微粒202的截留效果,从而使固体微粒202与炉气2中本身所含的固体粉尘201 一起被截留于该过滤元件3的迎风面一侧,而其他不能被截留的物质则从过滤元件3中通过并进入过滤元件3的背风面一侧。 201 will gradually form a cake layer on the windward side of the filter element 3, the cake layer enhances the effect of entrapping solid particles 3 of the filter element 202, so that the solid particles together in the solid dust 201 itself contains the furnace gas 2 202 3 is trapped at the windward side of the filter element, can not be trapped while other material from the filter element 3 and into the filter element through the leeward 3.

[0013] 显然,本发明实施例1的高压放电发生装置借鉴了现有电子束法炉气脱硫技术中形成电子束的相关技术。 [0013] Clearly, embodiments of the present invention a high pressure discharge generating apparatus 1 of the related art draw furnace gas desulfurization method prior art electron beam forming an electron beam. 本发明实施例2的高压放电发生装置则了现有脉冲电晕法炉气脱硫技术中形成电晕场的相关技术。 2 embodiment of the invention the high-pressure discharge pulse generating means is a prior art furnace gas desulfurization process corona corona field formed related art. 对于本发明实施例2,高压电源104最好采用高压脉冲电源,过滤元件3最好采用板状结构。 For Example 2 of the present invention, high voltage power supply 104 is preferably used high-voltage pulse power supply, the filter element 3 is preferable to use a plate-like structure.

[0014] 如图3所示,本发明实施例3的矿热炉炉气除尘脱硫一体化工艺仍通过高压放电发生装置I在过滤器中位于过滤元件3的迎风面前产生一高压放电场,具体而言,所述高压放电发生装置包括第一板状过滤元件3a、第二板状过滤元件3b以及分别与第一板状过滤元件3a和第二板状过滤元件3b电连接的高压电源107,所述第一板状过滤元件3a的迎风面与第二板状过滤元件3b的迎风面相对设置并在其间形成高压放电场。 [0014] 3, embodiments of the present invention submerged arc furnace dust desulfurizing process gas 3 still occurs by a high voltage discharge device I is located in front of the wind to generate a high-voltage discharge of 3 fields the filter element in the filter, particularly For, the high pressure discharge generating means comprises a first plate-shaped filter elements 3a, 3b, and a second plate-like filter element, respectively the plate-like filter element with the first high voltage power supply 3a and second plate 3b is electrically connected to the filter element 107, windward side of the first plate and the second plate of the filter element 3a, 3b of the filter element opposite the windward side and a high pressure discharge field disposed therebetween. 含有固体粉尘201、二氧化硫、金属元素及其他物质的矿热炉炉气2以图3中箭头所示方向通过该高压放电场,其间,如果该炉气2中含有水蒸汽,则高压放电场将二氧化硫离子化形成SO2'并从水蒸汽中激发出氧化性极强的自由基活性基团,从而将so2n-氧化为硫酸根离子或亚硫酸氢根离子,所述硫酸根离子或亚硫酸氢根离子再与炉气2中的金属元素反应生成硫酸盐或亚硫酸氢盐的固体微粒202,同时S02n_带电粒子会在电场中形成定向移动,在移动过程中与灰尘中的各种金属物质进行充分接触,使反应更加充分,另外,在滤芯的表面上附近,形成的浓度梯度也会增加这种反应的进行;如果该炉气2中不含水蒸汽等能够产生所述自由基活性基团的物质,则二氧化硫从高压放电场中得到电子并与炉气2中的金属元素反应生成亚硫酸盐的固体微粒202 ;由于炉气2中本身所含 201 containing solid dust, sulfur, metals and other substances in the submerged arc furnace gas 2 in the direction indicated by an arrow in FIG. 3 of the high pressure discharge field therebetween, if the gas contains water vapor in the furnace 2, the field of high-voltage discharge will ions to form sulfur dioxide SO2 'and stimulate strong oxidizing radical reactive groups from the water vapor, thereby so2n- oxidized to sulfate ion, or bisulphite ion, a sulfate ion, or bisulphite ions then metal element 2 in the reaction furnace gas sulphate or bisulphite solid particles 202, while S02n_ charged particles move in the electric field orientation is formed, with a variety of metal species in the dust during movement full contact, the reaction more fully, Further, in the vicinity of the upper surface of the filter, also increases the formation of a concentration gradient of such a reaction is performed; if the furnace gas 2 containing no water vapor can be generated in the free radical reactive groups material, the sulfur dioxide obtained from the high-voltage discharge electrons and the field in the metal element furnace gas 2 reaction of solid particulate sulfite 202; 2 itself due to the gas contained in the furnace 固体粉尘201会逐渐在第一板状过滤元件3a和第二板状过滤元件3b的迎风面上形成滤饼层,滤饼层增强了第一板状过滤元件3a、第二板状过滤元件3b对固体微粒202的截留效果,从而使固体微粒202与炉气2中本身所含的固体粉尘201 —起被截留于该第一板状过滤元件3a与第二板状过滤元件3b之间,而其他不能被截留的物质则分别从第一板状过滤元件3a和第二板状过滤元件3b过滤元件3中通过并进入第一板状过滤元件3a和第二板状过滤元件3b的背风面一侧。 Solid dust filter 201 will gradually 3a of the first plate-like member and the second plate form a filter cake layer on the windward side filter element 3b, the first layer enhances cake-shaped filter element 3a, 3b of the second plate-like filter element the solid particles trapped effect 202, 202 so that the solid particles in the solid dust and the furnace gas itself contains 2012-- from being trapped in the first plate-like filter element 3a and the second plate between the filter elements 3B, and a leeward side of the other substances can be entrapped, respectively the plate-like filter element 3a and the second filter element 3b by the filter element 3 and into the first plate-like filter element 3a and the second plate-like filter element from the first plate 3b side.

[0015] 本发明实施例3中,高压电源104最好采用高压脉冲电源。 Example [0015] 3 of the present invention, the high voltage power supply 104 is preferably used high-voltage pulse power supply. 本发明实施例3中产生的高压放电场既不同于实施例1中产生的电子束103,亦不同于实施2中产生的电晕106,实施例3采用在第一板状过滤元件3a、第二板状过滤元件3b之间施加高电压从而将极间气体介质击穿放电。 Voltage discharge field produced in Example 3 is different from the embodiment of the present invention, the electron beam 103 generated in Example 1 embodiment also differs from the embodiment 2 produced by the corona 106, Example 3 employed in the first plate-shaped filter element embodiment 3a, the first two high voltage is applied between the plate-like filter element 3b so that the inter-electrode dielectric breakdown discharge gas. 本发明实施例3与实施例2的共同之处在与,它们的过滤元件3为导体且兼作高压放电发生装置的电极。 3 embodiment of the present invention and in common with the embodiment of Example 2, which is a conductor of the filter element 3 and high voltage electrode serves as a discharge device to occur. 由于高压放电场会使待净化的炉气2中的杂质带电,而过滤元件3本身又作为高压放电发生装置的电极,因此,过滤元件3会对炉气2中的带电杂质产生吸附或排斥作用,使这些杂质无法从过滤元件3中通过,进一步提高炉气净化效果。 Since the field of high voltage discharge causes furnace gas to be purified of impurities in the charge 2, 3 and the filter element itself as the high voltage electrode discharge generating means, and therefore, the filter element 3 will furnace gas 2 generated charged impurity adsorption or repulsion , so that these impurities can not pass from the filter element 3, to further improve the effect of flue gas cleaning. 本发明实施例3与实施例2的过滤元件3可由无机多孔导体材料构成,例如不锈钢多孔材料,镍多孔材料等,但最好是由钛铝合金多孔导体材料、铁铝合金多孔导体材料、镍铝合金多孔导体材料中的一种构成,以使本发明能够适应高温过滤条件。 3 embodiment of the invention the filter element 3 Example 2 porous conductive material may be an inorganic, porous material such as stainless steel, nickel porous material or the like, but is preferably a porous conductive material is a titanium alloy, iron alloy porous conductive material, Ni An aluminum alloy constituting the porous conductive material, so that the present invention can be adapted to high-temperature filters.

[0016] 图4为一种可实施本发明实施例3的除尘脱硫一体化工艺的过滤器的结构示意图。 [0016] FIG. 4 is a schematic view of an embodiment of the present invention the integrated process configuration Desulfurization filter according to the third embodiment. 该过滤器4包括进气口401、排气口404和排渣口405,过滤器4的外壳内设有与所述进气口401相通的进气室402以及与排渣口405相通的集尘室406,所述进气室402与集尘室406之间为炉气净化区,炉气净化区内安装有迎风面相对设置的第一板状过滤元件3a和第二板状过滤元件3b,所述第一板状过滤元件3a、第二板状过滤元件3b分别与高压电源107电连接,从而在第一板状过滤元件3a的迎风面与第二板状过滤元件3b的迎风面之间形成高压放电场;在过滤器4的外壳内位于所述炉气净化区的外围设有一独立的环形净气室403,该环形净气室403与所述排气口404以及位于第一板状过滤元件3a的背风面和第二板状过滤元件3b的背风面之后的净气排气通道连通。 The filter 4 comprises an intake port 401, an exhaust port 404 and the slag discharge port 405, the filter housing 4 is equipped with a set of the intake port 401 communicating with the intake chamber 402 and a discharging outlet 405 communicating dust chamber 406, the intake chamber between the first plate 402 and the dust collecting chamber 406 of the furnace gas cleaning zone, flue gas cleaning zone is attached to the windward side opposite to the plate-like filter element 3a and the second filter element 3b the first plate-like filter element 3a, 3b of the second plate-shaped filter element are connected to the high voltage power source 107, such that the windward side of the filter element 3a and the second plate-like filter element 3b in the windward side of the first plate field is formed between the high-voltage discharge; located in the peripheral region of the flue gas cleaning with a separate annular clean gas chamber 403 within the housing of the filter 4, the annular clean gas chamber 403 and the exhaust port 404 and the first plate leeward side shaped filter element 3a and the second plate of the filter clean gas exhaust passage after the leeward side of the communication device 3b. 所述的炉气净化区内可以按照相同方式安装多块第一板状过滤元件3a和第二板状过滤元件3b,以提高炉气处理量。 The furnace gas cleaning zone may be mounted a plurality of first plate-shaped filter element 3a and the second filter element 3b in the same manner, the processing amount to increase the furnace gas.

[0017] 上述过滤器的工作过程为:炉气2从进气口401进入过滤器4中;此后,炉气2从进气室402向第一板状过滤元件3a的迎风面与第二板状过滤元件3b的迎风面之间的通道中运动,然后通过所述高压放电场促发炉气2中的二氧化硫与与金属元素反应生成硫酸盐、亚硫酸盐、亚硫酸氢盐中的至少一种固体微粒202 ;通过第一板状过滤元件3a和第二板状过滤元件3b将所述固体微粒202以及炉气中本身所含的固体粉尘201 —起截留所述通道中,并借助重力落入集尘室406,从而堆积在集尘室406的排渣口405处,而其他不能被截留的物质则从第一板状过滤元件3a和第二板状过滤元件3b中通过并通过位于第一板状过滤元件3a的背风面和第二板状过滤元件3b的背风面之后的净气排气通道进入环形净气室403,最终再从排气口404排出。 Working Process [0017] the filter is: 2 furnace gas into the filter 401 from the intake port 4; Thereafter, the furnace gas 2 windward side of the filter element 3a and the second plate to the first plate 402 from the intake chamber passage between the surface of the wind-shaped filter element 3b in motion, and then generate a trigger sulfate sulfur in the second reaction furnace gas with said metal element by a high voltage discharge field, sulfite, bisulfite at least one of 202 kinds of solid particles; filter element 3a and the second plate through the first plate-shaped filter element 3b and the solid dust and the solid particles 202 contained in the furnace gas itself 201-- retentate from the channel, and falling by gravity into the dust collecting chamber 406, so that the dust accumulated in the chamber 406 of the slagging port 405, while the other can not be entrapped material from the first plate-like filter element 3a and the second plate 3b by a filter element located on and by net gas exhaust passage after a plate-like filter element 3a and the leeward side of the second plate-like filter element 3b on the leeward side of the net gas into the annular chamber 403, and eventually is discharged from the exhaust port 404.

[0018] 本发明上述实施例1、2和3所处理的炉气可以为油页岩干馏气体,该炉气中的金属元素主要为铁、铝。 The above embodiments [0018] The present invention furnace gases 1, 2 and 3 may be processed oil shale pyrolysis gas, the metal element furnace gas mainly iron, aluminum. 或者,本发明上述实施例1、2和3所处理的炉气为铁合金矿热炉炉气,该炉气中的金属元素主要为铁以及锰、铬、钨、钼、钒、钛、镍、铌、钽中的至少一种。 Alternatively, the above-described embodiments of the present invention furnace gases 1, 2 and 3 is processed ferroalloy submerged arc furnace gas, the metal element furnace gas mainly iron and manganese, chromium, tungsten, molybdenum, vanadium, titanium, nickel, niobium, at least one of tantalum.

Claims (10)

1.矿热炉炉气除尘脱硫一体化工艺,所述炉气中含有固体粉尘、二氧化硫、金属元素及其他存在的物质,该工艺包括的步骤为:使炉气在过滤器中从过滤元件(3)的迎风面向背风面运动;通过高压放电发生装置(I)在所述迎风面前产生高压放电场;通过高压放电场促发炉气中的二氧化硫与金属元素反应生成硫酸盐、亚硫酸盐、亚硫酸氢盐中的至少一种固体微粒;通过过滤元件(3)将所述固体微粒与烟气中本身所含的固体粉尘一起截留于过滤元件(3)的迎风面一侧,其他不能被截留的物质则从过滤元件(3)中通过。 1. submerged arc furnace gas dust desulfurizing process, a furnace gas containing the solid dust, sulfur, metals and other substances present, the process comprising the steps of: making furnace gas from the filter element in the filter ( 3) facing the leeward side of the windward motion; generating a high voltage discharge through the wind field in front of the high-voltage discharge generator (the I); priming furnace gas sulfur dioxide with the metal element by a high pressure discharge reaction field sulfates, sulfites, at least one particulate solid bisulfite in; through the filter element (3) to the solid dust and solid particles contained in the flue gas together with itself trapped in the filter element (3) of the windward, the other can not be retentate material from the filter element (3) through.
2.如权利要求1所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述矿热炉炉气为油页岩干馏气体,该炉气中的金属元素主要为铁和铝。 2. The submerged arc furnace dust gas desulfurizing process according to claim 1, wherein: said submerged arc furnace gas oil shale pyrolysis gas, the metal element furnace gas mainly iron and aluminum .
3.如权利要求1所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述矿热炉炉气为铁合金矿热炉炉气,该炉气中的金属元素主要为铁以及锰、铬、钨、钼、钒、钛、镍、铌、钽中的至少一种。 3. The submerged arc furnace dust gas desulfurizing process according to claim 1, wherein: said gas is a submerged arc furnace ferroalloy submerged arc furnace gas, the metal element furnace gas mainly iron and manganese, chromium, tungsten, molybdenum, vanadium, titanium, nickel, niobium, at least one of tantalum.
4.如权利要求1、2或3所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述过滤元件(3)为导体且兼作高压放电发生装置的电极。 4. The submerged arc furnace dust gas desulfurizing process of claim 2 or claim 3, wherein: said filter element (3) also serves as a high voltage electrode and the conductor means discharge occurs.
5.如权利要求4所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述过滤元件(3)由无机多孔导体材料构成。 5. The submerged arc furnace dust gas desulfurizing process according to claim 4, wherein: said filter element (3) made of an inorganic porous conductive material.
6.如权利要求5所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述过滤元件(3)由钛铝合金多孔导体材料、铁铝合金多孔导体材料、镍铝合金多孔导体材料中的一种构成。 6. The submerged arc furnace dust gas desulfurizing process according to claim 5, wherein: said filter element (3) made of titanium alloy porous conductive material, the porous conductive material iron alloy, nickel alloy porous one kind of material constituting the conductor.
7.如权利要求4所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述过滤元件(3)包括第一板状过滤元件(3a)和第二板状过滤元件(3b),高压放电发生装置的高压电源分别与第一板状过滤元件(3a)和第二板状过滤元件(3b)电连接,所述第一板状过滤元件(3a)的迎风面与第二板状过滤元件(3b)的迎风面相对设置并在其间形成高压放电场。 7. A submerged arc furnace dust gas desulfurizing process according to claim 4, wherein: said filter element (3) comprises a first plate-like filter element (3a) and a second plate-shaped filter element (3b ), high voltage discharge high voltage power supply generating means, respectively, the first plate-like filter element (3a) and a second plate-shaped filter element (3b) is electrically connected to the windward side of the first plate-like filter element (3a) and a second the windward side of the plate-like filter element (3b) disposed opposite field and a high pressure discharge therebetween.
8.如权利要求7所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述高压电源为高压脉冲电源。 Submerged arc furnace gas dust desulfurizing 8. The process of claim 7, wherein: the high voltage power supply is a high voltage pulse power supply.
9.如权利要求1、2或3所述的矿热炉炉气除尘脱硫一体化工艺,其特征在于:所述高压放电场为脉冲电晕场。 Submerged arc furnace gas dust desulfurizing process according to claim 1, 2 or 3, wherein: said field-voltage discharge pulse corona field.
10.专用于实施权利要求1所述矿热炉炉气除尘脱硫一体化工艺的过滤器,包括进气口、排气口和排渣口,过滤器的外壳内设有与所述进气口相通的进气室以及与排渣口相通的集尘室,所述进气室与集尘室之间为烟气净化区,其特征在于:烟气净化区内安装有迎风面相对设置的第一板状过滤元件(3a)和第二板状过滤元件(3b),所述第一板状过滤元件(3a)、第二板状过滤元件(3b)分别与高压电源(107)电连接,从而在第一板状过滤元件(3a)的迎风面与第二板状过滤元件(3b)的迎风面之间形成高压放电场;在过滤器的外壳内位于所述烟气净化区的外围设有一独立的环形净气室(403),该环形净气室(403)与所述排气口以及位于第一板状过滤元件(3a)的背风面和第二板状过滤元件(3b)的背风面之后的净气排气通道连通。 10. The specific embodiments to claim 1 submerged arc furnace dust filter integrated gas desulfurization process, including an intake port, an exhaust port and the slag discharge port, a housing equipped with a filter with the intake port communicating between the inlet chamber and communicating with the discharging outlet dust chamber, the intake chamber and the dust chamber flue gas purification zone, wherein: attached to the flue gas cleaning zone disposed opposite the first windward a plate-like filter element (3a) and a second plate-shaped filter element (3b), said first plate-like filter element (3a), a second plate-shaped filter element (3b) are electrically connected to the high voltage power supply (107), in the first plate-shaped filter so that the filter element (3a) is formed on the windward side of the second plate-shaped high-voltage discharge between the windward side of the field element (3b); a filter positioned within the housing in the peripheral area of ​​the flue gas purification provided there is a separate annular clean gas chamber (403), the annular clean gas chamber (403) and said exhaust port and a first plate-like filter element (3a) of the leeward side filter element and the second plate (3b) of net gas exhaust passage in communication after the lee side.
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