CN1354124A - Preparation equipment of high-purity chlorinedioxide stable liquor and its preparation process - Google Patents
Preparation equipment of high-purity chlorinedioxide stable liquor and its preparation process Download PDFInfo
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- CN1354124A CN1354124A CN 01138049 CN01138049A CN1354124A CN 1354124 A CN1354124 A CN 1354124A CN 01138049 CN01138049 CN 01138049 CN 01138049 A CN01138049 A CN 01138049A CN 1354124 A CN1354124 A CN 1354124A
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- chlorine dioxide
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- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000004155 Chlorine dioxide Substances 0.000 title claims abstract description 50
- 235000019398 chlorine dioxide Nutrition 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229940099041 chlorine dioxide Drugs 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000006096 absorbing agent Substances 0.000 claims abstract description 36
- 239000000243 solution Substances 0.000 claims abstract description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000005587 bubbling Effects 0.000 claims abstract description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims abstract description 7
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000011259 mixed solution Substances 0.000 claims abstract description 4
- 229940045872 sodium percarbonate Drugs 0.000 claims abstract description 4
- 229960002218 sodium chlorite Drugs 0.000 claims abstract description 3
- 239000006174 pH buffer Substances 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 30
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 6
- 239000012629 purifying agent Substances 0.000 claims description 6
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 5
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical class [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 claims description 5
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000000872 buffer Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000012047 saturated solution Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 235000010288 sodium nitrite Nutrition 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000012295 chemical reaction liquid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 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
- 239000002535 acidifier Substances 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- MMCOUVMKNAHQOY-UHFFFAOYSA-N carbonoperoxoic acid Chemical compound OOC(O)=O MMCOUVMKNAHQOY-UHFFFAOYSA-N 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
一种高纯度二氧化氯稳定液制备装置及工艺,它是由两个原液槽、一个反应器和纯化器以及两个串联的吸收器组成。反应器、纯化器以及吸收器内有数根气体喷射鼓泡管。氯酸钠、硫酸和氯化钠按一定配比加热后在反应器中通过正压气体的喷射鼓泡作用下反应,生成二氧化氯和氯气的混合气体,再经纯化器被亚氯酸钠饱和溶液纯化,使其中的氯气与亚钠反应生成二氧化氯,二氧化氯气体再由正压输送到两个串联的吸收器中被氢氧化钠、过碳酸钠以及pH缓冲剂的混合溶液吸收稳定,形成稳定性二氧化氯溶液。本发明的反应计量准确,转化率和二氧化氯稳定液纯度高,二氧化氯稳定液纯度可达98%,同时还具有能耗低,工艺和结构简单、使用成本低、易于操作等优点。
A high-purity chlorine dioxide stable liquid preparation device and process, which is composed of two raw liquid tanks, a reactor, a purifier, and two series-connected absorbers. There are several gas injection bubbling tubes in the reactor, purifier and absorber. Sodium chlorate, sulfuric acid and sodium chloride are heated according to a certain ratio and react in the reactor under the action of positive pressure gas jet bubbling to generate a mixed gas of chlorine dioxide and chlorine gas, which is then purified by sodium chlorite through a purifier. The saturated solution is purified so that the chlorine gas in it reacts with sodium nitrite to generate chlorine dioxide, and then the chlorine dioxide gas is transported to two series absorbers by positive pressure to be absorbed by the mixed solution of sodium hydroxide, sodium percarbonate and pH buffer Stable, forming a stable chlorine dioxide solution. The invention has accurate reaction measurement, high conversion rate and high purity of the chlorine dioxide stable liquid, and the purity of the chlorine dioxide stable liquid can reach 98%, and also has the advantages of low energy consumption, simple process and structure, low use cost, easy operation and the like.
Description
一、所属技术领域1. Technical field
本发明涉及一种高效广普性消毒剂制备装置及制备工艺，特别是一种高纯度二氧化氯稳定液制备装置及工艺。The invention relates to a high-efficiency broad-spectrum disinfectant preparation device and a preparation process, in particular to a high-purity chlorine dioxide stable liquid preparation device and a process.
二、背景技术2. Background technology
二氧化氯作为一种高效广普性消毒剂其应用领域很广，但二氧化氯的耐储存性较差，所以只能即用即配，稳定性二氧化氯溶液也应运而生，目前稳定性二氧化氯溶液普遍采用氯酸钠和盐酸两种药剂进行反应制备二氧化氯，该方法价格便宜，但转化率低且得到的产物中含有大量的氯气，二氧化氯与氯气的摩尔比为2∶1，不但二氧化氯纯度较低，而且其中的氯气容易造成水体中的卤代烃超标。现有的稳定性二氧化氯溶液大多采用负压气体搅拌加强反应物的混合接触，但该类设备的反应器部份体积较小，反应器内的负压进气量有限，而且气体进入液体后由于气速慢，搅拌作用小，它使得反应液体的混合度不高，反应转化率也较小，同时该种系统采用喷淋吸收法，气液接触面积小，吸收效率较低。中国专利ZL99112023.5，发明名称为“基于盐酸的稳定性二氧化氯溶液生产方法”，它公开了一种稳定性二氧化氯溶液的生产方法，它是以氯酸钠为氧化剂，以盐酸为还原剂进行反应，生成二氧化氯气体，再用氢氧化钠或双氧水进行稳定和吸收，最终制取稳定性溶液。上述制备方法在具体反应时，存在以下缺陷：①系统以负压形式进行，所以反应釜的进气量和气速有限，达不到足够的搅拌和气提的作用；②在系统中是用吸收液通过水射器形成负压，将二氧化氯气体吸进反应器，进行喷淋吸收，该方法气液接触面积小，吸收效率低，吸收时间长，能耗高，对泵的腐蚀性大；③吸收后的尾气中含有较高的二氧化氯，即造成了浪费，又造成了周围环境的污染；④该方法获得的二氧化氯转化率较低，通常只有45％～60％。As a high-efficiency broad-spectrum disinfectant, chlorine dioxide has a wide range of applications, but chlorine dioxide has poor storage resistance, so it can only be prepared immediately after use. Stable chlorine dioxide solutions have also emerged as the times require, and are currently stable The neutral chlorine dioxide solution generally adopts sodium chlorate and hydrochloric acid to react to prepare chlorine dioxide. This method is cheap, but the conversion rate is low and the product obtained contains a large amount of chlorine gas. The molar ratio of chlorine dioxide to chlorine gas is 2:1, not only the purity of chlorine dioxide is low, but also the chlorine gas in it can easily cause the halogenated hydrocarbons in the water body to exceed the standard. Most of the existing stable chlorine dioxide solutions use negative pressure gas stirring to strengthen the mixing and contacting of the reactants, but the reactor part of this type of equipment has a small volume, the negative pressure in the reactor is limited, and the gas enters the liquid Finally, due to the slow gas velocity and small stirring effect, it makes the mixing degree of the reaction liquid not high, and the reaction conversion rate is also small. At the same time, this kind of system adopts the spray absorption method, the gas-liquid contact area is small, and the absorption efficiency is low. Chinese patent ZL99112023.5, the name of the invention is "Production method of stable chlorine dioxide solution based on hydrochloric acid", which discloses a production method of stable chlorine dioxide solution, which uses sodium chlorate as oxidant and hydrochloric acid as The reducing agent reacts to generate chlorine dioxide gas, which is then stabilized and absorbed with sodium hydroxide or hydrogen peroxide to finally prepare a stable solution. The above-mentioned preparation method has the following defects in the specific reaction: 1. the system is carried out in the form of negative pressure, so the air intake and gas velocity of the reactor are limited, and the effect of sufficient stirring and gas lift cannot be achieved; 2. the absorption liquid is used in the system Negative pressure is formed through the water ejector, and chlorine dioxide gas is sucked into the reactor for spray absorption. This method has small gas-liquid contact area, low absorption efficiency, long absorption time, high energy consumption, and great corrosion to the pump; ③The tail gas after absorption contains relatively high chlorine dioxide, which causes waste and pollution of the surrounding environment; ④The conversion rate of chlorine dioxide obtained by this method is low, usually only 45% to 60%.
三、发明内容3. Contents of the invention
本发明的目的在于提供一种反应充分，转化率高，同时能降低能耗且系统结构简单，成本低，易于操作的高强度二氧化氯稳定液制备装置及其制备工艺。The purpose of the present invention is to provide a high-intensity chlorine dioxide stable liquid preparation device and a preparation process thereof which have sufficient reaction, high conversion rate, low energy consumption, simple system structure, low cost and easy operation.
本发明的目的是通过以下方式来实现的，高纯度二氧化氯稳定液制备装置，它包括二个原液槽，一个反应器、一个纯化器，其特征是它还包括两个串联的吸收器，反应器、纯化器和二个吸收器内均设有3～16根/100cm2喷射鼓泡管，反应器下部设有原液进口和废液出口，原液进口分别通过两个加热器与二个原液槽相连，反应器顶部设有进气口，上部有产物出口，它与纯化器顶部进气口相连，纯化器下部有纯化剂进口，上部有二氧化氯出口，它与前一个串联的吸收器顶部的进气口相连，该吸收器的上部出气口又与后一吸收器顶部的进气口相连，前一吸收器中部的进液口与后一吸收器下部的排液口相连，后一吸收器的上部与中部分别设有剩余气的排气口和吸收液的进液口，系统最后生成的稳定性二氧化氯溶液出口设置在前一吸收器的下部。根据上述制备装置，高纯度二氧化氯的制备分别以饱和的氯酸钠为氧化剂，以盐酸、次氯酸钠为还原剂，以硫酸为酸化剂，以饱和的亚氯酸钠为纯化剂，以过碳酸钠、氢氧化钠以及PH值缓冲液的混合液为吸收剂，其制备工艺为：①将饱和的氯酸钠溶液和33～33.5％的盐酸、硫酸以及次氯酸钠溶液按摩尔比(1.5～2)∶(0.5～1.0)∶(0.4～1.0)∶(0.1～0.5)分别通过加热至45～70℃，送至喷射鼓泡反应器进行反应，反应停留时间为35～45分钟；②将生成的二氧化氯、氯气以及未反应的氯化氢混合物气体在纯化器中与饱和的亚氯酸钠溶液反应纯化，使其中的氯气和氯化氢与亚氯酸钠反应生成二氧化氯；③将生成的二氧化氯气体通过两个串联的吸收器中的过碳酸钠、氢氧化钠以及PH值缓冲液的混合溶液吸收，同时通过PH值的信号联动吸收液的计量泵的进料量，调节控制吸收后的液体PH值在8.2～9.2之间；④系统采用Iatm正压暴气，喷射鼓泡管的气体流速为8～22米/秒，另外采用计量泵进料，吸收液的进料方向与反应的生成物运行方向相向而行。The object of the present invention is achieved in the following manner, high-purity chlorine dioxide stable liquid preparation device, it comprises two stoste tanks, a reactor, a purifier, it is characterized in that it also comprises two absorbers connected in series, The reactor, the purifier and the two absorbers are all equipped with 3~16/100cm 2 jet bubbling tubes. The lower part of the reactor is equipped with a raw liquid inlet and a waste liquid outlet. The raw liquid inlet passes through two heaters and two raw liquid respectively. The tank is connected, the top of the reactor is provided with an air inlet, and the upper part has a product outlet, which is connected to the top air inlet of the purifier, the lower part of the purifier has a purifying agent inlet, and the upper part has a chlorine dioxide outlet, which is connected to the previous absorber in series The air inlet on the top is connected, the upper air outlet of the absorber is connected with the air inlet on the top of the latter absorber, the liquid inlet in the middle of the former absorber is connected with the liquid discharge port at the lower part of the latter absorber, The upper part and the middle part of the absorber are respectively provided with the exhaust port of the remaining gas and the liquid inlet port of the absorbing liquid, and the outlet of the stable chlorine dioxide solution finally generated by the system is set at the lower part of the previous absorber. According to the above-mentioned preparation device, the preparation of high-purity chlorine dioxide uses saturated sodium chlorate as oxidant, hydrochloric acid and sodium hypochlorite as reducing agent, sulfuric acid as acidifying agent, saturated sodium chlorite as purifying agent, and percarbonic acid as purifying agent. The mixed solution of sodium, sodium hydroxide and PH value buffer is absorbent, and its preparation process is: ① mix saturated sodium chlorate solution and 33-33.5% hydrochloric acid, sulfuric acid and sodium hypochlorite solution in molar ratio (1.5-2) : (0.5 ~ 1.0): (0.4 ~ 1.0): (0.1 ~ 0.5) respectively by heating to 45 ~ 70 ℃, sent to the jet bubble reactor for reaction, the reaction residence time is 35 ~ 45 minutes; ② will generate Chlorine dioxide, chlorine gas and unreacted hydrogen chloride mixture gas are reacted and purified with saturated sodium chlorite solution in the purifier, so that chlorine gas and hydrogen chloride react with sodium chlorite to generate chlorine dioxide; Chlorine gas is absorbed through the mixed solution of sodium percarbonate, sodium hydroxide and pH value buffer solution in two series absorbers, and at the same time, the feed amount of the metering pump of the absorption liquid is linked through the signal of the pH value to adjust and control the absorbed gas. The pH value of the liquid is between 8.2 and 9.2; ④The system adopts Iatm positive pressure storm gas, and the gas flow rate of the jet bubbling tube is 8 to 22 m/s. The running direction of the resultants is opposite to each other.
本发明与现有技术相比，其显著优点是：①该装置系统采用正压式暴气，气量和气压可根据需要在较大范围内调节，使反应液在喷射鼓泡管的作用下，完全混合，没有搅拌死角，反应液被高速气流撕裂，在溶液中形成微小气泡，从而增大了气液接触面积，提高了气提作用，使反应更加充分，转化率大大提高，在反应器中的转化率达98％；②采用两个串联的吸收器，使经纯化后的二氧化氯气体在喷射鼓泡吸收器的作用下，被吸收液充分吸收，同时吸收液与二氧化氯气体的运行方向采用对流方向，更加增大了吸收效果，降低了二氧化氯的尾气排放，同时减少了能耗；③该系统采用计量泵进料，它使得反应计量准确，转化率和二氧化氯稳定液纯度高，经该系统制得的二氧化氯稳定液纯度可达99％；④本装置的系统结构简单，使用成本低且易于操作。Compared with the prior art, the present invention has the following remarkable advantages: ①The device system adopts positive pressure burst gas, and the gas volume and air pressure can be adjusted in a large range according to the needs, so that the reaction liquid can Complete mixing, no stirring dead angle, the reaction solution is torn by the high-speed air flow, forming tiny bubbles in the solution, thereby increasing the gas-liquid contact area, improving the gas lift effect, making the reaction more complete, and the conversion rate is greatly improved. In the reactor The conversion rate is up to 98%; ②Two absorbers in series are used to make the purified chlorine dioxide gas fully absorbed by the absorption liquid under the action of the jet bubble absorber, and at the same time the absorption liquid and chlorine dioxide gas The direction of operation adopts the convection direction, which further increases the absorption effect, reduces the exhaust gas emission of chlorine dioxide, and reduces energy consumption; The purity of the stabilizing liquid is high, and the purity of the chlorine dioxide stabilizing liquid prepared by the system can reach 99%; ④ The system structure of the device is simple, the use cost is low and it is easy to operate.
四、附图说明4. Description of drawings
附图为本发明所述高纯度二氧化氯稳定液制备装置的结构原理示意图。The accompanying drawing is a schematic diagram of the structure and principle of the high-purity chlorine dioxide stable liquid preparation device of the present invention.
五、具体实施方式5. Specific implementation
下面结合附图对本发明作进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings.
根据本发明所述高纯度二氧化氯稳定液制备装置是由原液槽(1)、原液槽(2)、反应器(5)、纯化器(10)和两个串联的吸收器(14)和(20)组成。在原料槽(1)和原料槽(2)中分别加入饱和的氯酸钠反应液和0.65～33.5的盐酸、硫酸以及次氯酸钠溶液，它们的质量比为(1.66)∶(0.65)∶(0.8)∶(0.3)，反应液分别通过计量泵输送到加热器(3)和加热器(4)中加热至70℃，再经反应液进口(6)进入反应器(5)中，由反应器(5)中顶部的进气口(7)输入压力空气，在喷射鼓泡管(24)的作用下，气体形成大量的平行喷射的微小气泡，将两种反应液体进行充分搅拌，使之反应完全，同时微小气泡的平行喷射增大了气液接触时间和接触面积，提高了气提作用，使反应向生成物方向进行，增大了反应效率，缩短了反应时间。生成的二氧化氯和氯气和混合气体通过位于喷射鼓泡反应器(5)的上部产物出口(8)、经纯化器(10)的顶部进气口(11)进入纯化器(10)内，纯化剂是通过纯化器(10)的下部的进口管(12)进入，与气体中的氯气反应生成二氧化氯，纯化后的二氧化氯气体从纯化器(10)的上部出口(13)进入两个串联的喷射鼓泡吸收器(14)和(20)，与从吸收器(26)中部进口(23)进入的吸收液中的碳酸钠和氢氧化钠反应后被固定在溶液中，吸收后的剩余空气由喷射鼓泡吸收器(20)的上部排出口(22)排出，配制好的稳定性二氧化氯溶液由喷射鼓泡吸收器(14)的下部出口(15)排出。其中喷射鼓泡吸收器(14)中部进液口(18)与喷射鼓泡吸收器(20)的排液口(19)相连。吸收液与二氧化氯气体的运行方向是一种对流方向，增大了吸收效果。According to the high-purity chlorine dioxide stable solution preparation device of the present invention, it is composed of a stock solution tank (1), a stock solution tank (2), a reactor (5), a purifier (10) and two series-connected absorbers (14) and (20) COMPOSITION. Add saturated sodium chlorate reaction liquid and 0.65～33.5 hydrochloric acid, sulfuric acid and sodium hypochlorite solution respectively in raw material tank (1) and raw material tank (2), their mass ratio is (1.66): (0.65): (0.8) : (0.3), the reaction solution is delivered to the heater (3) and the heater (4) by a metering pump and heated to 70° C., then enters the reactor (5) through the reaction solution inlet (6), and the reactor ( 5) The air inlet (7) at the top of the center is input with pressure air, and under the action of the jet bubbling tube (24), the gas forms a large number of tiny bubbles jetted in parallel, and the two reaction liquids are fully stirred to make them react completely , At the same time, the parallel injection of tiny bubbles increases the gas-liquid contact time and contact area, improves the gas lift effect, makes the reaction proceed in the direction of the product, increases the reaction efficiency, and shortens the reaction time. The chlorine dioxide and chlorine gas and mixed gas of generation enter in the purifier (10) through the top air inlet (11) of purifier (10) by being positioned at the upper part product outlet (8) of jet bubble reactor (5), The purifying agent enters through the lower inlet pipe (12) of the purifier (10), reacts with the chlorine gas in the gas to generate chlorine dioxide, and the purified chlorine dioxide gas enters from the upper outlet (13) of the purifier (10) Two series-connected jet bubbling absorbers (14) and (20) are fixed in solution after reacting with sodium carbonate and sodium hydroxide in the absorbing liquid entering from the absorber (26) middle inlet (23), absorbing The remaining air is discharged from the upper outlet (22) of the jet bubble absorber (20), and the prepared stable chlorine dioxide solution is discharged from the lower outlet (15) of the jet bubble absorber (14). Wherein the liquid inlet (18) in the middle part of the jet bubble absorber (14) is connected with the liquid discharge port (19) of the jet bubble absorber (20). The running direction of the absorbing liquid and the chlorine dioxide gas is a convective direction, which increases the absorption effect.
反应器(5)、纯化器(10)、吸收器(14)和吸收器(20)内的喷射鼓泡管(24)采用Φ20～Φ60的耐腐蚀管制成，管的底部全封闭，在侧下面开等距离的平行长方形孔或圆形孔，喷射鼓泡管(24)的排列按正三角形或长方形排列在支撑板(25)上，排放密度为3～16根/100cm2，吸收液制备成PH为11.5～12.8之间。Reactor (5), purifier (10), absorber (14) and jet bubbling pipe (24) in absorber (20) are made of Φ20～Φ60 corrosion-resistant pipe, the bottom of the pipe is fully closed, and the side Equidistant parallel rectangular holes or circular holes are opened below, and the jet bubbling tubes (24) are arranged on the support plate (25) according to regular triangles or rectangles, and the discharge density is 3-16/100cm 2 , and the absorption liquid is prepared The pH is between 11.5 and 12.8.
Claims (4)
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| CN105417497A (en) * | 2015-12-15 | 2016-03-23 | 刘学思 | Production device and technology for high-concentration steady chlorine dioxide solution |
| CN107188296A (en) * | 2017-07-28 | 2017-09-22 | 辽东学院 | The method that chlorine dioxide mixed oxidization method handles amino phenols waste water from dyestuff |
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| CN111232928A (en) * | 2020-03-05 | 2020-06-05 | 山东德洋计量检测有限公司 | Chlorine dioxide preparation and purification device and preparation method thereof |
| CN114684789A (en) * | 2022-03-16 | 2022-07-01 | 华南理工大学 | Preparation method of high-purity chlorine dioxide stable solution |
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| CN105417497A (en) * | 2015-12-15 | 2016-03-23 | 刘学思 | Production device and technology for high-concentration steady chlorine dioxide solution |
| CN105417497B (en) * | 2015-12-15 | 2017-12-08 | 刘学思 | A kind of process units and technique of high concentration of chlorine dioxide stable state liquid |
| CN107188296A (en) * | 2017-07-28 | 2017-09-22 | 辽东学院 | The method that chlorine dioxide mixed oxidization method handles amino phenols waste water from dyestuff |
| CN107188296B (en) * | 2017-07-28 | 2020-08-18 | 辽东学院 | Method for treating aminophenol dye wastewater by chlorine dioxide mixed oxidation method |
| CN108529810A (en) * | 2018-05-24 | 2018-09-14 | 广西金圆环保科技有限公司 | A kind of garbage percolation liquid treating system |
| CN110200011A (en) * | 2019-07-05 | 2019-09-06 | 四川齐力绿源水处理科技有限公司 | A kind of preparation method of composite chlorine dioxide |
| CN111232928A (en) * | 2020-03-05 | 2020-06-05 | 山东德洋计量检测有限公司 | Chlorine dioxide preparation and purification device and preparation method thereof |
| CN114684789A (en) * | 2022-03-16 | 2022-07-01 | 华南理工大学 | Preparation method of high-purity chlorine dioxide stable solution |
| CN115010093A (en) * | 2022-07-18 | 2022-09-06 | 宁夏艾克坚机械设备有限公司 | Gas chlorine dioxide continuous production system and production method |
| CN115010093B (en) * | 2022-07-18 | 2024-12-24 | 宁夏艾克坚机械设备有限公司 | Continuous production system and method of gaseous chlorine dioxide |
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