CN107583456A - Boiler smoke adsoption catalysis desulfurizing device - Google Patents
Boiler smoke adsoption catalysis desulfurizing device Download PDFInfo
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- CN107583456A CN107583456A CN201710917740.5A CN201710917740A CN107583456A CN 107583456 A CN107583456 A CN 107583456A CN 201710917740 A CN201710917740 A CN 201710917740A CN 107583456 A CN107583456 A CN 107583456A
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- flue gas
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- 238000006555 catalytic reaction Methods 0.000 title claims description 7
- 230000003009 desulfurizing effect Effects 0.000 title 1
- 239000000779 smoke Substances 0.000 title 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003546 flue gas Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000011593 sulfur Substances 0.000 claims abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000001179 sorption measurement Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 70
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 239000011572 manganese Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 7
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 3
- FEBUJFMRSBAMES-UHFFFAOYSA-N 2-[(2-{[3,5-dihydroxy-2-(hydroxymethyl)-6-phosphanyloxan-4-yl]oxy}-3,5-dihydroxy-6-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-4-yl)oxy]-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl phosphinite Chemical compound OC1C(O)C(O)C(CO)OC1OCC1C(O)C(OC2C(C(OP)C(O)C(CO)O2)O)C(O)C(OC2C(C(CO)OC(P)C2O)O)O1 FEBUJFMRSBAMES-UHFFFAOYSA-N 0.000 claims 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 229920002305 Schizophyllan Polymers 0.000 claims 1
- 239000010426 asphalt Substances 0.000 claims 1
- ZWXOQTHCXRZUJP-UHFFFAOYSA-N manganese(2+);manganese(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mn+2].[Mn+3].[Mn+3] ZWXOQTHCXRZUJP-UHFFFAOYSA-N 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 19
- 230000023556 desulfurization Effects 0.000 abstract description 19
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 16
- 230000003197 catalytic effect Effects 0.000 abstract description 9
- 239000003054 catalyst Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 229910001655 manganese mineral Inorganic materials 0.000 description 11
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 10
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 9
- 239000011630 iodine Substances 0.000 description 9
- 229910052740 iodine Inorganic materials 0.000 description 9
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
本发明公开了锅炉烟气吸附催化除硫装置，包括反应釜，反应釜顶部和底部分别设置进水口和出液口，反应釜下部和上部分别设置烟气入口和烟气出口；在反应釜内：其中部设置钢丝网，钢丝网上铺有卵石，卵石上铺有除硫物料；其底部设置支架，支架上固定电机，电机顶部设置导流罩，电机的驱动轴上联接有螺杆，螺杆自下而上依次穿过导流罩、钢丝网、卵石、除硫物料；其顶部固定设置有布水器，布水器与进水口通过水管连通。与现有技术相比，本发明的催化剂易得价格低廉，而且使用寿命较长，催化性能稳定；对锅炉烟气温度适用范围较宽；本发明的制作成本及运行成本都较低；烟气除硫效率高，而且在脱除二氧化硫的同时还回收了硫资源，安全环保。
The invention discloses a boiler flue gas adsorption catalytic desulfurization device, which comprises a reaction kettle, a water inlet and a liquid outlet are respectively arranged on the top and bottom of the reaction kettle, and a flue gas inlet and a flue gas outlet are respectively arranged on the lower part and the upper part of the reaction kettle; in the reaction kettle : Steel wire mesh is set in the middle, pebbles are laid on the steel mesh, and sulfur removal materials are laid on the pebbles; a bracket is set at the bottom, the motor is fixed on the bracket, a shroud is set on the top of the motor, and a screw is connected to the drive shaft of the motor, and the screw is from the bottom The top passes through the diversion cover, steel wire mesh, pebbles, and sulfur removal materials in sequence; a water distributor is fixed on the top, and the water distributor is connected to the water inlet through a water pipe. Compared with the prior art, the catalyst of the present invention is easy to obtain and low in price, and has a long service life and stable catalytic performance; it has a wide application range for boiler flue gas temperature; the production cost and operating cost of the present invention are relatively low; the flue gas The efficiency of sulfur removal is high, and sulfur resources are recovered while removing sulfur dioxide, which is safe and environmentally friendly.
Description
技术领域technical field
本发明涉及锅炉烟气除硫技术领域，具体地说就是锅炉烟气吸附催化除硫装置。The invention relates to the technical field of boiler flue gas desulfurization, in particular to a boiler flue gas adsorption catalytic desulfurization device.
背景技术Background technique
目前用于锅炉烟气除硫的方法主要有：（1）燃烧除硫，如石灰—石灰石喷射法、石灰—氧化镁喷射法等；（2）燃烧后除硫，如双碱法、氨法、钠碱法、活性炭吸附法、氧化铜法、电子束照射法、脉冲电晕放电法等。由于这些方法大多设备制造成本较高、操作繁杂、投资较大、运行成本较高，所以难以推广应用，尤其难以在中小锅炉上推广应用。At present, the main methods for desulfurization of boiler flue gas are: (1) Combustion desulfurization, such as lime-limestone injection method, lime-magnesia injection method, etc.; (2) Post-combustion desulfurization, such as double alkali method, ammonia method , sodium alkali method, activated carbon adsorption method, copper oxide method, electron beam irradiation method, pulse corona discharge method, etc. Because most of these methods have high equipment manufacturing costs, complicated operations, large investment, and high operating costs, they are difficult to popularize and apply, especially on small and medium-sized boilers.
活性炭吸附除硫技术，在消除二氧化硫污染的同时，还可以在较低的温度下将二氧化硫转化为三氧化硫，并在同一设备内将三氧化硫转化成硫酸，因而是一种防止污染与资源回收相结合具有吸引力的技术。但是由于活性炭本身催化能力较弱，一般要使用碘作催化剂，故称碘活性炭吸附法。碘活性炭在使用时存在一些难以控制的技术问题：（1）温度高于120℃时碘升华流失，烟气温度不高于120℃的条件较难控制；（2）活性炭再生时加热条件不好掌握，因活性炭再生温度在200℃左右，且碘是附在活性炭的表面上，超过此温度容易造成碘升华损失；（3）碘容易流失；（4）运行成本较高，主要是碘易损失，常需要补加碘，碘较昂贵。因此，除硫效果不佳。Activated carbon adsorption desulfurization technology, while eliminating sulfur dioxide pollution, can also convert sulfur dioxide into sulfur trioxide at a lower temperature, and convert sulfur trioxide into sulfuric acid in the same equipment, so it is a pollution prevention and resource Recycling combines attractive technologies. However, due to the weak catalytic ability of activated carbon itself, iodine is generally used as a catalyst, so it is called iodine activated carbon adsorption method. There are some uncontrollable technical problems in the use of iodine activated carbon: (1) When the temperature is higher than 120°C, iodine sublimates and loses, and the condition of flue gas temperature is not higher than 120°C is difficult to control; (2) The heating conditions are not good when the activated carbon is regenerated Master, because the regeneration temperature of activated carbon is about 200 ℃, and iodine is attached to the surface of activated carbon, it is easy to cause iodine sublimation loss if the temperature exceeds this temperature; (3) iodine is easy to lose; (4) the operating cost is high, mainly because iodine is easy to lose , often need to add iodine, iodine is more expensive. Therefore, the sulfur removal effect is not good.
发明内容Contents of the invention
本发明针对现有技术中的不足，目的是提供一种锅炉烟气除硫效果好、成本低的装置。The invention aims at the deficiencies in the prior art, and aims to provide a device with good desulfurization effect and low cost for boiler flue gas.
本发明解决上述技术问题所采用的技术方案为：The technical solution adopted by the present invention to solve the problems of the technologies described above is:
锅炉烟气吸附催化除硫装置，包括反应釜，其特征在于：Boiler flue gas adsorption and catalytic desulfurization device, including a reaction kettle, is characterized in that:
反应釜顶部和底部分别设置有进水口和出液口，反应釜的下部和上部分别设置有烟气入口和烟气出口；The top and bottom of the reaction kettle are respectively provided with a water inlet and a liquid outlet, and the lower and upper parts of the reaction kettle are respectively provided with a flue gas inlet and a flue gas outlet;
在反应釜内：其中部固定设置有平铺的钢丝网，钢丝网上铺有卵石，卵石上铺有除硫物料；其底部固定设置有支架，支架上固定有电机，电机顶部固定设置导流罩，电机的驱动轴上固定联接有螺杆，螺杆自下而上依次穿过导流罩、钢丝网、卵石、除硫物料，钢丝网和导流罩之间的螺杆上固定设置有扇叶；其顶部固定设置有布水器，布水器与进水口通过水管连通；In the reactor: the middle part is fixed with a flat steel wire mesh, the steel wire mesh is covered with pebbles, and the pebbles are covered with sulfur removal materials; the bottom is fixed with a bracket, the motor is fixed on the bracket, and the top of the motor is fixed with a shroud , the drive shaft of the motor is fixedly connected with a screw, and the screw passes through the shroud, steel wire mesh, pebbles, and desulfurization materials from bottom to top in sequence, and fan blades are fixedly arranged on the screw between the steel wire mesh and the shroud; The top is fixed with a water distributor, and the water distributor is connected to the water inlet through a water pipe;
烟气出口所在平面位于除硫物料和布水器之间，烟气入口所在平面位于导流罩和扇叶之间。The plane where the flue gas outlet is located is between the desulfurization material and the water distributor, and the plane where the flue gas inlet is located is between the shroud and the fan blades.
上述除硫物料为活性炭与锰矿物的混合物，其体积比为3:1，活性炭和锰矿物的粒度均为φ4—φ6mm，所述活性炭为煤质活性炭或沥青基球状活性炭或椰壳活性炭，所述锰矿物为软锰矿或褐锰矿或黑锰矿或水锰矿或硬锰矿。The above-mentioned desulfurization material is a mixture of activated carbon and manganese minerals, its volume ratio is 3:1, the particle size of activated carbon and manganese minerals is φ4-φ6mm, and the activated carbon is coal-based activated carbon or pitch-based spherical activated carbon or coconut shell activated carbon. The manganese minerals are pyrolusite or brown manganese or black manganese or manganese or manganese ore.
上述的螺杆与导流罩通过轴承进行连接。The above-mentioned screw rod is connected with the shroud through bearings.
上述的钢丝网和支架均焊接于反应釜内壁，支架为十字形结构。The above-mentioned steel wire mesh and support are welded to the inner wall of the reactor, and the support is a cross-shaped structure.
上述的导流罩呈锥形，其与电机螺栓连接，支架和电机螺栓连接。The above-mentioned shroud is conical, and it is connected with the motor by bolts, and the bracket is connected with the motor by bolts.
上述的卵石的粒度为φ30—φ50mm，卵石铺设的高度为150-200mm。The particle size of the above-mentioned pebbles is φ30-φ50mm, and the height of the pebbles is 150-200mm.
本发明具有的有益效果为：The beneficial effects that the present invention has are:
与现有技术相比，本发明电机带动螺杆和扇叶转动，扇叶的转动利于烟气向上走，而螺杆的转动使得活性炭与锰矿物的混合物得以运动，与烟气中的二氧化硫吸附催化反应更容易进行，混合更均匀，效率更高；本发明的催化剂易得价格低廉，而且使用寿命较长，催化性能稳定；对锅炉烟气温度适用范围较宽；运行操作简单，活性炭容易再生；本发明的制作成本及运行成本都较低；烟气除硫效率高，而且在脱除二氧化硫的同时还回收了硫资源，安全环保。Compared with the prior art, the motor of the present invention drives the screw and the fan blades to rotate, and the rotation of the fan blades facilitates the flue gas to move upwards, while the rotation of the screw makes the mixture of activated carbon and manganese minerals move, which can adsorb and catalyze the sulfur dioxide in the flue gas It is easier to carry out, more uniform in mixing, and higher in efficiency; the catalyst of the present invention is easy to obtain and low in price, has a long service life, and has stable catalytic performance; it is applicable to a wide range of boiler flue gas temperatures; the operation is simple, and the activated carbon is easy to regenerate; The production cost and operation cost of the invention are relatively low; the flue gas desulfurization efficiency is high, and sulfur resources are recovered while sulfur dioxide is removed, which is safe and environment-friendly.
附图说明Description of drawings
以下附图仅旨在于对本发明作示意性的说明和解释，并不限于本发明的范围。其中，The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in,
图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式detailed description
为了对本发明的技术特征、目的、效果以及实施例有更加清楚的理解，现结合附图说明本发明的具体实施方式。In order to have a clearer understanding of the technical features, purposes, effects and embodiments of the present invention, specific implementations of the present invention will now be described in conjunction with the accompanying drawings.
如图1所示，该锅炉烟气吸附催化除硫装置，包括反应釜1，反应釜1为带有上、下封头的筒状容器，其内衬玻璃钢防腐层，反应釜1顶部和底部分别设置有进水口11和出液口13，反应釜1的下部和上部分别设置有烟气入口14和烟气出口12。在反应釜1内：其中部固定设置有平铺的钢丝网6，钢丝网6上铺有卵石8，卵石8的粒度为φ40mm，卵石8铺设的高度为150mm，卵石8上铺有除硫物料7；其底部固定设置有支架10，支架10上固定有电机5，电机5顶部固定设置导流罩9，电机5的驱动轴上固定联接有螺杆4，螺杆4自下而上依次穿过导流罩9、钢丝网6、卵石8、除硫物料7，钢丝网6和导流罩9之间的螺杆4上固定设置有扇叶3；其顶部固定设置有布水器2，布水器2与进水口11通过水管连通。As shown in Figure 1, the boiler flue gas adsorption and catalytic desulfurization device includes a reactor 1, which is a cylindrical container with upper and lower heads, and is lined with a glass fiber reinforced plastic anti-corrosion layer. The top and bottom of the reactor 1 are A water inlet 11 and a liquid outlet 13 are respectively provided, and a flue gas inlet 14 and a flue gas outlet 12 are respectively arranged at the lower part and the upper part of the reactor 1 . In the reaction kettle 1: the middle part is fixed with a tiled steel wire mesh 6, and the steel mesh 6 is covered with pebbles 8. The particle size of the pebbles 8 is φ40mm, and the height of the pebbles 8 is 150mm. The pebbles 8 are covered with sulfur removal materials. 7; Its bottom is fixedly provided with support 10, is fixed with motor 5 on support 10, and the top of motor 5 is fixedly provided with shroud 9, and the drive shaft of motor 5 is fixedly connected with screw rod 4, and screw rod 4 passes through guide in turn from bottom to top. Flow cover 9, steel wire mesh 6, pebbles 8, desulfurization material 7, fan blade 3 is fixedly installed on the screw rod 4 between steel wire mesh 6 and flow guide cover 9; 2 communicates with the water inlet 11 through a water pipe.
烟气出口12所在平面位于除硫物料7和布水器2之间，烟气入口14所在平面位于导流罩9和扇叶3之间。The plane of the flue gas outlet 12 is located between the desulfurization material 7 and the water distributor 2 , and the plane of the flue gas inlet 14 is located between the shroud 9 and the fan blade 3 .
所述除硫物料7为活性炭与锰矿物的混合物，其体积比为3:1，活性炭和锰矿物的粒度均为φ5mm，所述活性炭为煤质活性炭或沥青基球状活性炭或椰壳活性炭，所述锰矿物为软锰矿或褐锰矿或黑锰矿或水锰矿或硬锰矿。The desulfurization material 7 is a mixture of activated carbon and manganese minerals, its volume ratio is 3:1, the particle size of activated carbon and manganese minerals is φ5mm, and the activated carbon is coal-based activated carbon or pitch-based spherical activated carbon or coconut shell activated carbon. The manganese minerals are pyrolusite or brown manganese or black manganese or manganese or manganese ore.
所述扇叶3和导流罩9上均涂有玻璃钢防腐层。Both the fan blade 3 and the shroud 9 are coated with a fiberglass anticorrosion layer.
所述螺杆4与导流罩9通过轴承进行连接。The screw rod 4 is connected with the shroud 9 through a bearing.
所述钢丝网6和支架10均焊接于反应釜1内壁，支架10为十字形结构。Both the steel wire mesh 6 and the bracket 10 are welded to the inner wall of the reactor 1, and the bracket 10 is a cross-shaped structure.
所述导流罩9呈锥形，其与电机5螺栓连接，支架10和电机5螺栓连接。The wind deflector 9 is conical, and it is connected with the motor 5 by bolts, and the support 10 is connected with the motor 5 by bolts.
所述电机5对应的反应釜1侧壁上设置一维修门（图中未示出）。A maintenance door (not shown in the figure) is provided on the side wall of the reactor 1 corresponding to the motor 5 .
本发明的工作原理如下：The working principle of the present invention is as follows:
打开维修门启动电机5，电机5带动螺杆4和扇叶3转动，锅炉含硫烟气先经过吸尘器进行吸尘处理，然后通过烟气入口14进入反应釜1底部，扇叶3的转动利于烟气向上走，含硫烟气进入活性炭与锰矿物的混合物中，其中活性炭作吸附剂、锰矿物作催化剂，使得含硫烟气中的二氧化硫被吸附催化转化成三氧化硫，而螺杆4的转动使得活性炭与锰矿物的混合物得以运动，与烟气中的二氧化硫吸附催化反应更容易进行，混合更均匀，效率更高，而且，锰矿物易得价格低廉，使用寿命较长，催化性能稳定，对锅炉烟气温度适用范围较宽，处理后的烟气经烟气出口12排出，排出烟气出口12通过引风机走向烟囱再排向大气，安全环保，同时水经进水口11由布水器2喷出，在除硫物料7中与三氧化硫反应生成得到的稀硫酸，水采用布水器2喷淋可以使得三氧化硫更易溶于水中，得到的稀硫酸向下流落到导流罩9上，锥形导流罩9利于稀硫酸向下流，可以防止电机5被腐蚀，稀硫酸然后经出液口13排出，得到的稀硫酸可经浓缩净化生产工业硫酸，或用于其他工业生产。Open the maintenance door and start the motor 5. The motor 5 drives the screw 4 and the fan blade 3 to rotate. The sulfur-containing flue gas of the boiler first passes through the vacuum cleaner for dust collection, and then enters the bottom of the reaction kettle 1 through the flue gas inlet 14. The rotation of the fan blade 3 is beneficial to the flue gas. As the gas moves upward, the sulfur-containing flue gas enters the mixture of activated carbon and manganese minerals, in which the activated carbon acts as an adsorbent and the manganese mineral acts as a catalyst, so that the sulfur dioxide in the sulfur-containing flue gas is adsorbed and catalyzed into sulfur trioxide, and the rotation of the screw 4 The mixture of activated carbon and manganese minerals can be moved, and the adsorption and catalytic reaction with sulfur dioxide in the flue gas is easier to carry out, the mixing is more uniform, and the efficiency is higher. Moreover, manganese minerals are easy to obtain and low in price, with long service life and stable catalytic performance. The boiler flue gas temperature has a wide application range. The treated flue gas is discharged through the flue gas outlet 12, and the exhausted flue gas exit 12 goes to the chimney through the induced draft fan and then discharged to the atmosphere, which is safe and environmentally friendly. At the same time, the water is sprayed by the water distributor 2 through the water inlet 11. It can be seen that the dilute sulfuric acid obtained by reacting with sulfur trioxide in the desulfurization material 7 is sprayed by the water distributor 2 to make the sulfur trioxide more soluble in water, and the dilute sulfuric acid obtained flows down onto the shroud 9 , the conical shroud 9 is conducive to the downward flow of dilute sulfuric acid, which can prevent the motor 5 from being corroded, and then the dilute sulfuric acid is discharged through the liquid outlet 13, and the dilute sulfuric acid obtained can be concentrated and purified to produce industrial sulfuric acid, or used for other industrial production.
本发明的催化剂易得价格低廉，而且使用寿命较长，催化性能稳定；对锅炉烟气温度适用范围较宽；运行操作简单，活性炭容易再生，将活性炭和催化剂从反应器中取出把两者分离，把活性炭在200℃左右温度下隔绝空气加温（或用200℃左右过热蒸汽加温）即可得到再生的活性炭，然后再与催化剂混匀后装入反应器，如果催化剂有损失应补加；本发明的制作成本及运行成本都较低；烟气除硫效率高，而且在脱除二氧化硫的同时还回收了硫资源，安全环保。The catalyst of the present invention is easy to obtain and low in price, and has a long service life and stable catalytic performance; it has a wide range of application to the boiler flue gas temperature; it is simple to operate and easy to regenerate the activated carbon, and the activated carbon and the catalyst are taken out from the reactor to separate the two , heat the activated carbon at a temperature of about 200°C in isolation from the air (or heat it with superheated steam at about 200°C) to obtain regenerated activated carbon, and then mix it with the catalyst and put it into the reactor. If the catalyst is lost, it should be added ; The production cost and operating cost of the present invention are both low; the flue gas desulfurization efficiency is high, and sulfur resources are also recovered while removing sulfur dioxide, which is safe and environmentally friendly.
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