CN205988672U - A kind of processing meanss smelting spuious flue gas - Google Patents
A kind of processing meanss smelting spuious flue gas Download PDFInfo
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- CN205988672U CN205988672U CN201620957992.1U CN201620957992U CN205988672U CN 205988672 U CN205988672 U CN 205988672U CN 201620957992 U CN201620957992 U CN 201620957992U CN 205988672 U CN205988672 U CN 205988672U
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- desulfurization tower
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000003546 flue gas Substances 0.000 title claims abstract description 39
- 238000003723 Smelting Methods 0.000 title abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 77
- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000010865 sewage Substances 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 230000003009 desulfurizing effect Effects 0.000 claims 7
- 241001062472 Stokellia anisodon Species 0.000 claims 2
- 238000006477 desulfuration reaction Methods 0.000 abstract description 41
- 230000023556 desulfurization Effects 0.000 abstract description 41
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 18
- 239000002562 thickening agent Substances 0.000 abstract description 12
- 238000011010 flushing procedure Methods 0.000 abstract description 9
- 238000005507 spraying Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 239000003595 mist Substances 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 230000003203 everyday effect Effects 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract 2
- 239000002002 slurry Substances 0.000 description 21
- 238000010521 absorption reaction Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003517 fume Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection 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
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000011272 standard treatment Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
本实用新型公开了一种冶炼杂散烟气的处理装置，以解决现有杂散烟气达标排放问题。它包括脱硫塔、喷淋循环泵、浓密机、逆喷管循环泵、排污泵、输送泵、清液储罐，脱硫塔包括逆喷管、逆喷管喷嘴入口、除雾器、冲洗装置、喷淋装置，脱硫塔的侧端连接有逆喷管，脱硫塔的中下部为与逆喷管相通的气液分离槽，逆喷管侧壁设有逆喷管喷嘴入口；脱硫塔的顶部设有除雾器，气液分离槽的上方设有喷淋装置；脱硫塔的下方分别设有上出液口、下出液口、进液口、排污口。本实用新型脱硫效率高、运行成本低、不产生二次污染。其处理过程利用选矿系统每天产生的大量碱性矿浆作为脱硫剂，对低浓度杂散二氧化硫烟气进行脱硫处理。
The utility model discloses a treatment device for smelting stray smoke, which aims to solve the problem of the existing stray smoke reaching the standard discharge. It includes a desulfurization tower, a spray circulation pump, a thickener, a reverse nozzle circulation pump, a sewage pump, a delivery pump, and a clear liquid storage tank. The desulfurization tower includes a reverse nozzle, a reverse nozzle nozzle inlet, a mist eliminator, a flushing device, Spraying device, the side end of the desulfurization tower is connected with a reverse nozzle, the middle and lower part of the desulfurization tower is a gas-liquid separation tank connected with the reverse nozzle, the side wall of the reverse nozzle is provided with a nozzle inlet of the reverse nozzle; the top of the desulfurization tower is equipped with There is a demister, and a spray device is installed above the gas-liquid separation tank; the upper liquid outlet, the lower liquid outlet, the liquid inlet, and the sewage outlet are respectively installed below the desulfurization tower. The utility model has high desulfurization efficiency, low operation cost and no secondary pollution. Its treatment process uses a large amount of alkaline pulp produced by the mineral processing system every day as a desulfurization agent to desulfurize the low-concentration stray sulfur dioxide flue gas.
Description
技术领域technical field
本实用新型属于低浓度冶炼烟气治理领域，具体涉及一种冶炼杂散烟气的处理装置。The utility model belongs to the field of low-concentration smelting flue gas treatment, in particular to a treatment device for smelting stray flue gas.
背景技术Background technique
硫化矿冶炼过程会产生大量二氧化硫烟气，其中高浓度二氧化硫烟气用于制酸，由炉熔体放出口、加料口、沉降电炉、贫化电炉放低镍锍出口、放渣口、熔体入口、加料口、渣包等部位产生的烟气及排除吹炼转炉固定烟罩、旋转烟罩和炉后等部位产生的烟气组成的低浓度杂散烟气，可利用碱性尾矿浆对低浓度二氧化硫杂散烟气进行有效处理，解决杂散二氧化硫烟气达标排放问题。The sulphide ore smelting process will produce a large amount of sulfur dioxide flue gas, of which high-concentration sulfur dioxide flue gas is used to make acid, and the nickel matte outlet, slag discharge port, and melt The low-concentration stray flue gas composed of the flue gas produced at the entrance, feeding port, slag bag and other parts and the flue gas produced at the blowing converter fixed fume hood, rotating fume hood and furnace back can be treated with alkaline tailings slurry. Low-concentration sulfur dioxide stray flue gas is effectively treated to solve the problem of stray sulfur dioxide flue gas emission standards.
实用新型内容Utility model content
本实用新型的目的是提供一种冶炼杂散烟气的处理装置，以解决现有杂散烟气达标排放问题。The purpose of the utility model is to provide a treatment device for smelting stray fumes to solve the problem of the existing stray fumes being discharged up to the standard.
本实用新型的目的是通过以下技术方案实现的：一种冶炼杂散烟气的处理装置，包括脱硫塔、喷淋循环泵、浓密机，它还包括逆喷管循环泵、排污泵、输送泵、清液储罐，脱硫塔包括逆喷管、逆喷管喷嘴入口、除雾器、冲洗装置、喷淋装置，脱硫塔1的侧端连接有逆喷管，脱硫塔的中下部为与逆喷管相通的气液分离槽，逆喷管侧壁设有逆喷管喷嘴入口；脱硫塔的顶部设有除雾器，气液分离槽的上方设有喷淋装置；脱硫塔的下方分别设有上出液口、下出液口、进液口、排污口；上出液口通过喷淋循环泵与喷淋装置连通，下出液口通过逆喷管循环泵与逆喷管连通，排污口通过排污泵与浓密机连通，浓密机的上端与清液储罐相连，清液储罐通过清液输送泵与脱硫塔的进液口连通。The purpose of this utility model is achieved through the following technical solutions: a processing device for smelting stray flue gas, including a desulfurization tower, a spray circulation pump, a thickener, and it also includes a reverse nozzle circulation pump, a sewage pump, and a delivery pump , clear liquid storage tank, desulfurization tower includes reverse nozzle, nozzle inlet of reverse nozzle, mist eliminator, flushing device, spray device, side end of desulfurization tower 1 is connected with reverse nozzle, and the middle and lower part of desulfurization tower is connected with reverse nozzle The gas-liquid separation tank with the nozzles connected, the side wall of the reverse nozzle is provided with the nozzle inlet of the reverse nozzle; the top of the desulfurization tower is equipped with a demister, the top of the gas-liquid separation tank is equipped with a spray device; the bottom of the desulfurization tower is respectively installed There are upper liquid outlet, lower liquid outlet, liquid inlet and sewage outlet; the upper liquid outlet is connected with the spray device through the spray circulation pump, and the lower liquid outlet is connected with the reverse nozzle pipe through the reverse nozzle circulation pump, and the sewage is discharged The port is connected with the thickener through the sewage pump, the upper end of the thickener is connected with the clear liquid storage tank, and the clear liquid storage tank is connected with the liquid inlet of the desulfurization tower through the clear liquid delivery pump.
本实用新型脱硫效率高、运行成本低、不产生二次污染。其处理过程利用选矿系统每天产生的大量碱性矿浆作为脱硫剂，对低浓度杂散二氧化硫烟气进行脱硫处理。所属矿浆呈碱性，主要成分为氧化镁、氧化钙的混合液，其反应原理是利用尾矿浆中的碱性成分吸收冶炼烟气中的酸性气体二氧化硫，实现低浓度杂散烟气的达标处理。The utility model has high desulfurization efficiency, low operation cost and no secondary pollution. Its treatment process uses a large amount of alkaline pulp produced by the mineral processing system every day as a desulfurization agent to desulfurize the low-concentration stray sulfur dioxide flue gas. The pulp is alkaline, and its main component is a mixture of magnesium oxide and calcium oxide. The reaction principle is to use the alkaline components in the tailings slurry to absorb the acid gas sulfur dioxide in the smelting flue gas, so as to achieve the standard treatment of low-concentration stray flue gas .
附图说明Description of drawings
图1为一种冶炼杂散烟气的处理装置的结构示意图；Fig. 1 is a structural schematic diagram of a treatment device for smelting stray flue gas;
图2为一种冶炼杂散烟气的处理装置中脱硫塔的结构示意图。Fig. 2 is a schematic structural diagram of a desulfurization tower in a treatment device for smelting stray flue gas.
图中：脱硫塔1、风机2、尾气烟囱3、喷淋循环泵4、逆喷管循环泵5、排污泵6、浓密机7、输送泵8、清液储罐9、清液输送泵10、矿浆输送泵11、尾矿坝12、冲洗水13、烟气入口14、气体出口15、逆喷管16、逆喷管喷嘴入口17、气液分离槽18、上出液口19、下出液口20、除雾器21、喷淋装置入口22、冲洗装置23、冲洗水入口24、喷淋装置25、进液口26、排污口27。In the figure: desulfurization tower 1, fan 2, tail gas chimney 3, spray circulation pump 4, reverse nozzle pipe circulation pump 5, sewage pump 6, thickener 7, delivery pump 8, clear liquid storage tank 9, clear liquid delivery pump 10 , slurry delivery pump 11, tailings dam 12, flushing water 13, flue gas inlet 14, gas outlet 15, reverse nozzle 16, reverse nozzle nozzle inlet 17, gas-liquid separation tank 18, upper liquid outlet 19, lower outlet Liquid port 20, demister 21, spraying device inlet 22, flushing device 23, flushing water inlet 24, spraying device 25, liquid inlet 26, sewage outlet 27.
具体实施方式detailed description
下面结合附图对本实用新型做进一步详细的说明。Below in conjunction with accompanying drawing, the utility model is described in further detail.
一种冶炼杂散烟气的处理装置，包括脱硫塔1、喷淋循环泵4、浓密机7、逆喷管循环泵5、排污泵6、输送泵8、清液储罐9，脱硫塔1包括逆喷管16、逆喷管喷嘴入口17、除雾器21、冲洗装置23、喷淋装置25，脱硫塔1的侧端连接有逆喷管16，脱硫塔1的中下部为与逆喷管16相通的气液分离槽18，逆喷管16侧壁设有逆喷管喷嘴入口17；脱硫塔1的顶部设有除雾器21，气液分离槽18的上方设有喷淋装置25；脱硫塔1的下方分别设有上出液口19、下出液口20、进液口26、排污口27；上出液口19通过喷淋循环泵4与喷淋装置25连通，下出液口20通过逆喷管循环泵5与逆喷管16连通，排污口27通过排污泵6与浓密机7连通，浓密机7的上端与清液储罐9相连，清液储罐9通过清液输送泵10与脱硫塔1的进液口26连通。除雾器21下方设有冲洗装置23。A treatment device for smelting stray flue gas, including a desulfurization tower 1, a spray circulation pump 4, a thickener 7, a reverse nozzle circulation pump 5, a sewage pump 6, a delivery pump 8, a clear liquid storage tank 9, and a desulfurization tower 1 Including reverse spray pipe 16, reverse spray pipe nozzle inlet 17, mist eliminator 21, flushing device 23, spray device 25, reverse spray pipe 16 is connected to the side end of desulfurization tower 1, and the middle and lower part of desulfurization tower 1 is connected with reverse spray The gas-liquid separation tank 18 connected by the pipe 16, the reverse nozzle nozzle inlet 17 is provided on the side wall of the reverse nozzle 16; The bottom of the desulfurization tower 1 is respectively provided with an upper liquid outlet 19, a lower liquid outlet 20, a liquid inlet 26, and a sewage outlet 27; the upper liquid outlet 19 communicates with the spray device 25 through the spray circulation pump 4, and the lower outlet The liquid port 20 communicates with the reverse nozzle pipe 16 through the reverse nozzle circulation pump 5, the sewage outlet 27 communicates with the thickener 7 through the sewage pump 6, the upper end of the thickener 7 is connected with the clear liquid storage tank 9, and the clear liquid storage tank 9 passes through the clear liquid The liquid delivery pump 10 communicates with the liquid inlet 26 of the desulfurization tower 1 . A flushing device 23 is provided below the demister 21 .
脱硫塔1通过管道与冶炼烟气管道连接。风机2通过管道与脱硫塔的顶部气体出口15及尾气烟囱3连接。尾矿浆输送泵11与脱硫塔1的进液口26连接。脱硫塔的下出液口通过循环泵与脱硫塔逆喷管喷头连接，保证高浓度的吸收液从下出液口进入逆喷管循环使用，上出液口通过循环泵和喷淋装置连接，保证低浓度的吸收液从上出液口进入喷淋装置循环使用，避免高浓度循环液堵塞喷淋装置，排污口通过排污泵与浓密机及尾矿坝12连接。浓密机通过输送泵与尾矿坝及清液储罐连接。The desulfurization tower 1 is connected with the smelting flue gas pipeline through pipelines. The fan 2 is connected with the top gas outlet 15 of the desulfurization tower and the tail gas chimney 3 through pipelines. The tailings slurry delivery pump 11 is connected to the liquid inlet 26 of the desulfurization tower 1 . The lower liquid outlet of the desulfurization tower is connected to the reverse nozzle nozzle of the desulfurization tower through a circulating pump to ensure that the high-concentration absorption liquid enters the reverse nozzle from the lower liquid outlet for recycling, and the upper liquid outlet is connected to the spraying device through a circulating pump. Ensure that the low-concentration absorption liquid enters the spray device from the upper liquid outlet for recycling, and avoids high-concentration circulating liquid from blocking the spray device. The sewage outlet is connected with the thickener and the tailings dam 12 through the sewage pump. The thickener is connected with the tailings dam and the clear liquid storage tank through the transfer pump.
脱硫塔1使用尾矿浆对冶炼烟气进行吸收时，矿浆进行不断更换，保证吸收效率，排污泵6将脱硫塔循环矿浆打入直接打入尾矿坝或浓密机7，浓密机7对循环尾矿浆进行浓缩、沉降处理后，底流经输送泵8送至尾矿坝，溢流上清液进入清液储罐9，经清液输送泵10送至脱硫塔，降低循环液含固量，避免管线喷头堵塞，同时可利用清液储罐9的清液对各管线清洗，保证系统连续稳定运行。When the desulfurization tower 1 uses tailings slurry to absorb the smelting flue gas, the slurry is constantly replaced to ensure the absorption efficiency. The sewage pump 6 pumps the circulating slurry of the desulfurization tower into the tailings dam or thickener 7 directly, and the thickener 7 pairs the circulating tailings. After the slurry is concentrated and settled, the bottom flow is sent to the tailings dam through the transfer pump 8, and the overflow supernatant enters the clear liquid storage tank 9, and is sent to the desulfurization tower through the clear liquid transfer pump 10 to reduce the solid content of the circulating liquid and avoid Pipeline nozzles are blocked, and at the same time, the clear liquid in the clear liquid storage tank 9 can be used to clean each pipeline to ensure continuous and stable operation of the system.
烟气由烟气入口14进入脱硫塔1中的逆喷管16，在逆喷管16中，逆喷管喷嘴入口17矿浆喷入直立的反向喷射筒，烟气与喷嘴入口17的矿浆相撞，发生气体的吸收，烟气经逆喷管吸收后，进入气液分离槽18进行气液分离，一部分矿浆经上出液口19、下出液口20进入循环使用，一部分矿浆经排污口27外排。烟气经一级吸收后进入气液分离槽18下部，烟气在气液分离槽18与自上而下喷淋装置25的喷淋矿浆逆流接触反应，进行二次吸收，经除雾器21除雾、除水、除尘后，气体通过气体出口15外排。The flue gas enters the reverse nozzle 16 in the desulfurization tower 1 from the flue gas inlet 14. In the reverse nozzle 16, the slurry at the nozzle inlet 17 of the reverse nozzle is sprayed into the vertical reverse injection tube, and the flue gas is in contact with the slurry at the nozzle inlet 17. Collision, the absorption of gas occurs, after the flue gas is absorbed by the reverse nozzle, it enters the gas-liquid separation tank 18 for gas-liquid separation, a part of the pulp enters the recycling through the upper liquid outlet 19 and the lower liquid outlet 20, and a part of the pulp passes through the sewage outlet 27 outer rows. The flue gas enters the lower part of the gas-liquid separation tank 18 after primary absorption, and the flue gas is in the gas-liquid separation tank 18 and reacts countercurrently with the spray slurry of the top-down spraying device 25, undergoes secondary absorption, and passes through the demister 21 After removing mist, water and dust, the gas is discharged through the gas outlet 15 .
进入逆喷管喷嘴入口17矿浆循环液下出液口20位置设在脱硫塔底部，保证矿浆充分利用，提高矿浆使用效率，进入喷淋装置入口22矿浆循环液上出液口19位置距塔底有一定的距离，此位置为矿浆上清液，含固量较低，减少矿浆对喷淋装置的堵塞，确保系统正常运行。Entering the reverse nozzle nozzle inlet 17 The position of the slurry circulation liquid outlet 20 is set at the bottom of the desulfurization tower to ensure the full utilization of the slurry and improve the use efficiency of the slurry, and the entrance of the spray device 22 The slurry circulation liquid upper liquid outlet 19 position is far from the bottom of the tower There is a certain distance. This position is the supernatant of the pulp, which has a low solid content, which reduces the blockage of the spray device by the pulp and ensures the normal operation of the system.
冲洗水13经冲洗水入口24接入除雾器冲洗装置23，用以自动定期冲洗除雾器21，保证洗除雾器21清洁，确保除雾、除尘、除水效率。The flushing water 13 is connected to the demister rinsing device 23 through the flushing water inlet 24 to automatically and regularly flush the demister 21 to ensure the cleaning of the demister 21 and to ensure the efficiency of demisting, dust removal and water removal.
实施例1Example 1
将矿浆送至脱硫塔1，达到一定液位后，开启逆喷管循环泵5、喷淋循环泵4，将矿浆送至脱硫塔1的逆喷管喷嘴入口17和顶部的喷淋装置喷淋装置入口22；通入冶炼烟气，二氧化硫浓度：4857mg/Nm3—15142mg/Nm3，平均浓度为10210mg/Nm3，烟气量：160000Nm3/h—200000Nm3/h，平均气量为180000Nm3/h，在逆喷管16中，烟气与尾矿浆相撞，完成烟气的一次吸收，进入脱硫塔1下部的气液分离槽18，气体与喷淋装置25自上而下的喷淋吸收液逆流接触、反应，完成烟气的二次吸收，控制吸收废液pH值大于6，出口SO2浓度基本保持在160mg/Nm3以下，满足达标排放标准。Send the ore slurry to the desulfurization tower 1. After reaching a certain liquid level, turn on the reverse nozzle circulation pump 5 and the spray circulation pump 4, and send the ore slurry to the reverse nozzle nozzle inlet 17 of the desulfurization tower 1 and the spray device on the top for spraying Device inlet 22; smelting flue gas is introduced, sulfur dioxide concentration: 4857mg/Nm 3 -15142mg/Nm 3 , the average concentration is 10210mg/Nm 3 , flue gas volume: 160000Nm 3 /h-200000Nm 3 /h, the average gas volume is 180000Nm 3 /h, in the reverse nozzle 16, the flue gas collides with the tailings slurry, completes the primary absorption of the flue gas, enters the gas-liquid separation tank 18 at the lower part of the desulfurization tower 1, and sprays the gas and the spray device 25 from top to bottom The absorption liquid contacts and reacts countercurrently to complete the secondary absorption of the flue gas. The pH value of the absorption waste liquid is controlled to be greater than 6, and the outlet SO 2 concentration is basically kept below 160mg/Nm 3 , which meets the discharge standard.
实施例2Example 2
将矿浆送至脱硫塔1，达到一定液位后，开启逆喷管循环泵5、喷淋循环泵4，将矿浆送至脱硫塔1的逆喷管喷嘴入口17和顶部的喷淋装置喷淋装置入口22；通入冶炼烟气，二氧化硫浓度：9714mg/Nm3—19428mg/Nm3，平均浓度为14826mg/Nm3，烟气量：160000Nm3/h—200000Nm3/h，平均气量为180000Nm3/h，在逆喷管16中，烟气与尾矿浆相撞，完成烟气的一次吸收，进入脱硫塔1下部的气液分离槽18，气体与喷淋装置25自上而下的喷淋吸收液逆流接触、反应，完成烟气的二次吸收，控制吸收废液pH值大于6.3，出口SO2浓度基本保持在280mg/Nm3以下，满足达标排放标准。Send the ore slurry to the desulfurization tower 1. After reaching a certain liquid level, turn on the reverse nozzle circulation pump 5 and the spray circulation pump 4, and send the ore slurry to the reverse nozzle nozzle inlet 17 of the desulfurization tower 1 and the spray device on the top for spraying Device inlet 22; smelting flue gas is introduced, sulfur dioxide concentration: 9714mg/Nm 3 -19428mg/Nm 3 , the average concentration is 14826mg/Nm 3 , flue gas volume: 160000Nm 3 /h-200000Nm 3 /h, the average gas volume is 180000Nm 3 /h, in the reverse nozzle 16, the flue gas collides with the tailings slurry, completes the primary absorption of the flue gas, enters the gas-liquid separation tank 18 at the lower part of the desulfurization tower 1, and sprays the gas and the spray device 25 from top to bottom The absorption liquid contacts and reacts countercurrently to complete the secondary absorption of flue gas, control the pH value of the absorption waste liquid to be greater than 6.3, and keep the SO 2 concentration at the outlet below 280mg/Nm 3 , which meets the discharge standard.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445379A (en) * | 2017-08-25 | 2017-12-08 | 金川集团股份有限公司 | A kind of device and method of acid waste water evaporation emission reduction |
| CN112337288A (en) * | 2020-09-30 | 2021-02-09 | 湖北宜化松滋肥业有限公司 | Processing apparatus who dissolves sulphur waste gas |
| CN112495142A (en) * | 2020-11-30 | 2021-03-16 | 铜陵有色金属集团股份有限公司 | System and method for removing pollutants in flue gas collected by sodium sulfide removal thermosol tank |
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2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445379A (en) * | 2017-08-25 | 2017-12-08 | 金川集团股份有限公司 | A kind of device and method of acid waste water evaporation emission reduction |
| CN112337288A (en) * | 2020-09-30 | 2021-02-09 | 湖北宜化松滋肥业有限公司 | Processing apparatus who dissolves sulphur waste gas |
| CN112495142A (en) * | 2020-11-30 | 2021-03-16 | 铜陵有色金属集团股份有限公司 | System and method for removing pollutants in flue gas collected by sodium sulfide removal thermosol tank |
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