CN204607668U - A kind of dosing reactor - Google Patents

A kind of dosing reactor Download PDF

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Publication number
CN204607668U
CN204607668U CN201520281265.3U CN201520281265U CN204607668U CN 204607668 U CN204607668 U CN 204607668U CN 201520281265 U CN201520281265 U CN 201520281265U CN 204607668 U CN204607668 U CN 204607668U
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China
Prior art keywords
aeration tube
dosing
airduct
reactor
reaction cell
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CN201520281265.3U
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Chinese (zh)
Inventor
熊道文
熊珊
李勇
童纯清
杜成琼
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China Power Construction Environmental Protection Technology Co.,Ltd.
PowerChina Zhongnan Engineering Corp Ltd
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Hunan Central-South Water Utilities Environmental Protection Technology Co Ltd
PowerChina Zhongnan Engineering Corp Ltd
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Abstract

The utility model discloses a kind of dosing reactor.Described dosing reactor comprises reaction cell body, is arranged at least one aeration tube in reaction cell body, and by air-supply arrangement that airduct is communicated with aeration tube; Described airduct is connected with chemicals dosing plant by chemical feed pipe; Described reaction cell body top is provided with liquid pool, between the bottom and liquid pool of reaction cell body, be provided with recycle pump; The liquid feeding end of described recycle pump and the circulation port of the bottom of reaction cell body are by pipeline communication, and the outlet end of this recycle pump is communicated with the fluid inlet of liquid pool.Thus, after medicament enters airduct by chemical feed pipe and spraying gun successively, air-supply arrangement is delivered in reactive tank by aeration tube again, then recycle pump circulation is started, this dosing method is more even relative to stirring after the direct dosing of tradition, effectively improves the effective rate of utilization of medicament, improves processing efficiency, the dosage of reagent can be reduced simultaneously, reduce running cost and follow-up sludge treatment burden.

Description

A kind of dosing reactor
Technical field
The utility model relates to a kind of dosing reactor, is mainly applicable to the reactor needing dosing to react, and institute's adding medicine is applicable to sending aeration in dosing reactor by wind.
Background technology
The dosing reactor needing dosing to react common at present, because liquid directly adds in reactor by chemical feed pipe by chemicals dosing plant, easily cause drug concentration local in reactor uneven, reaction effect is had a greatly reduced quality.For Fenton oxidation method process stain disease:
Fenton oxidation method process stain disease utilizes H 2o 2and Fe 2+the strong oxidizer mixed carries out non-selective oxidation process to the organic pollutant etc. in stain disease.It, mainly through under acidic conditions, utilizes Fe 2+as H 2o 2catalyzer, generate and have very strong oxidizing property and the very high hydroxyl radical free radical (OH) of reactive behavior, hydroxyl radical free radical generates organic free radical with hardly degraded organic substance in aqueous and makes it structure deteriorate, final oxygenolysis.Fe simultaneously 2+be oxidized to Fe 3+produce coagulating sedimentation, partial organic substances condensation removed, principal reaction is as follows:
Fe 2++H 2O 2→Fe 3++OH -+?OH
Fe 3++H 2O 2+OH -→Fe 2++H 2O+?OH
Fe 3++H 2O 2→Fe 2++H ++HO 2
HO 2+H 2O 2→H 2O+O 2↑+?OH
As can be seen here, Fenton facture is the more complicated chemical oxidization method of a kind of reaction, and treatment effect is good, but the ratio control of Fenton process to medicament has stricter requirement, it is relatively high to the control overflow of reaction system, and adding of the hydraulics therefore in reaction tank or equipment and medicament is very crucial.
In at present conventional Fenton treatment technology to ferrous iron and hydrogen peroxide add generally by chemicals dosing plant directly by adding of agent in waste water, then pass through stirring reaction.This adding of agent mode will make medicament mix completely needs for some time, and this just makes the adding of agent initial stage easily cause topical agent excessive concentration and uneven, thus makes the dosages distribution of local not meet best Fenton's reaction requirement.Above-mentioned phenomenon will cause side reaction effect degree to increase, thus consuming that the Fenton reagent of quite a few is disabled, the effective rate of utilization of medicament is not high, and treatment effect is also relatively poor.In order to reach predetermined treatment effect, can only by adding more medicament, thus running cost be raised; Integral part in Fenton reagent is ferrous iron, and ferrous dosage too much can cause increasing in a large number of sludge quantity, the subsequent disposal burden of mud, and the expense that mud subsequent disposal is disposed also improves thereupon.
Therefore, for current Fenton process Problems existing, based on Fenton treatment technology general at present, be necessary to develop high Fenton treatment process and equipment, improve Fenton equipment to the effective rate of utilization of Fenton medicament, improve treatment effect simultaneously, reduce running cost, reduce mud generation.
Utility model content
The utility model aims to provide a kind of dosing reactor, and this dosing reactor effectively can improve the effective rate of utilization of reagent, promotes processing efficiency, can reduce the dosage of reagent simultaneously, reduces running cost and follow-up sludge treatment burden.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of dosing reactor, its constructional feature is, comprises reaction cell body, is arranged at least one aeration tube in reaction cell body, and by air-supply arrangement that airduct is communicated with aeration tube; Described airduct is connected with chemicals dosing plant by chemical feed pipe; Described reaction cell body top is provided with liquid pool, between the bottom and liquid pool of reaction cell body, be provided with recycle pump; The liquid feeding end of described recycle pump and the circulation port of the bottom of reaction cell body are by pipeline communication, and the outlet end of this recycle pump is communicated with the fluid inlet of liquid pool.
Thus, after medicament enters airduct by chemical feed pipe, air-supply arrangement is delivered in reactive tank by aeration tube again, then recycle pump circulation is started, this dosing method is more even relative to stirring after the direct dosing of tradition, effectively improves the effective rate of utilization of reagent, improves processing efficiency, the dosage of reagent can be decreased simultaneously, reduce running cost and follow-up sludge treatment burden.
Be below the technical scheme of further improvement of the utility model:
In order to meet the needs of the situation adding various medicaments, described chemicals dosing plant is multiple, and each chemicals dosing plant is communicated with corresponding airduct by independent chemical feed pipe.
In order to ensure that medicament is more uniformly delivered to aeration tube place by air-supply arrangement, chemical feed pipe described in every root is all equipped with spraying gun, the medicament after atomization more easily mixes with the uniform liquid in reactive tank.
Further, the tip height of described liquid pool is higher than the height reacting cell body Inner liquid level, and thus, the liquid of pumping crosses liquid pool top, then enters in reactive tank.
Described dosing reactor is Fenton dosing reactor, and described chemicals dosing plant is H 2o 2chemicals dosing plant and ferrous chemicals dosing plant, wherein H 2o 2chemicals dosing plant is communicated with by the airduct that two chemical feed pipes are corresponding to two, ferrous chemicals dosing plant is communicated with by the airduct that chemical feed pipe is corresponding to, described aeration tube comprises aeration tube 1#, aeration tube 2# and aeration tube 3#, and wherein aeration tube 1# and aeration tube 3# is by airduct, chemical feed pipe and described H 2o 2chemicals dosing plant is connected, and aeration tube 2# is connected with described ferrous chemicals dosing plant by airduct, chemical feed pipe, and aeration tube 2# is between aeration tube 1# and aeration tube 3#.
Preferably, described aeration tube is order font boring aeration pipe.
Further, described liquid pool is arranged circumferentially along reaction cell body and reactive tank is divided into two portions, thus, can ensure the homogeneity of feed liquor, avoids the impact causing local liquid stream, the hydraulics in homogenizing reactive tank simultaneously.
The reflux ratio of described recycle pump is set to 1:1 ~ 1:5.
Described aeration tube is provided with multilayer from top to bottom, and the caliber of the aeration tube on upper strata is less than the caliber of lower floor's aeration tube.Thus, the top-down caliber of aeration tube caliber increases gradually, ensure that the pressure equilibrium in aeration tube pipeline, ensures that every layer of aeration is even simultaneously.
Compared with prior art, the beneficial effects of the utility model are:
1, medicament be atomized and be added in reactive tank by the mode of aeration after mixing with pressurized air, adding of medicament is more even, completely avoid and form topical agent excessive concentration, or the problem of topical agent concentration ratio change, decreases the intensity of side reaction, makes Fenton's reaction can carry out to more favourable direction, improve the effective rate of utilization of medicament, the dosage of medicament can be reduced to a certain extent, indirectly reduce sludge yield, reduce running cost.
2, have employed uniform dosing structure, adopt multilayer aeration to add structure, make the waterpower power condition of reactive tank inside more excellent, in reactive tank, main reaction region is without dead angle simultaneously, and internal mix is more even, can improve treatment effect to a certain extent.
3, medicament add more simple effectively; The dosage of medicament can have slowly carrying out of control simultaneously, makes in whole hydraulic detention time, the medicament newly added all can be had to contact with reaction solution, is more conducive to the abundant reaction of medicament.
4, the utility model is simple and reliable for structure, installs quick and convenient, simple to operate.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation of dosing reactor cell body described in the utility model;
Fig. 2 is the connection diagram of dosing reactor described in the utility model.
In the drawings
1-liquid-inlet pipe; 2-recycle pump; 3-reactive tank; 4-H 2o 2chemicals dosing plant; The ferrous chemicals dosing plant of 5-; 6-spraying gun 3#; 7-spraying gun 1#; 8-spraying gun 2#; 9-air compressor machine; 10-airduct 4#; 11-airduct 3#; 12-airduct 2#; 13-airduct 1#; 14-chemical feed pipe 1#; 15-chemical feed pipe 2#; 16-chemical feed pipe 3#; 31-liquid pool; 32-fluid inlet; 33-circulation fluid mouth; 34-aeration tube 1#; 35-aeration tube 2#; 36-aeration tube 3#; 37-liquid outlet; 38-reacts cell body.
Embodiment
A kind of Fenton dosing reactor, it is by efficient Fenton's reaction groove 3, air compressor machine 9, recycle pump 2, H 2o 2the compositions such as chemicals dosing plant 4, ferrous chemicals dosing plant 5, spraying gun 1#7, spraying gun 2#6, spraying gun 3#8, airduct 1#13, airduct 2#12, airduct 3#11, airduct 4#10.Described reactive tank 3 is made up of reaction cell body 38, liquid pool 31, aeration tube 1#34, aeration tube 2#35, aeration tube 3#36, fluid inlet 32, liquid outlet 37, circulation port 33; Liquid pool 31 is provided with, liquid pool 31 and fluid inlet UNICOM 32 above described reaction cell body 38; Described cell body 38 two bottom sides is respectively arranged with liquid outlet 37, circulation port 33; Aeration tube 1#34, aeration tube 2#35, aeration tube 3#36 is furnished with from top to bottom respectively in the middle of described reaction cell body 38.
The fluid inlet 32 of described efficient Fenton's reaction groove 3 is connected with liquid-inlet pipe 1, and liquid-inlet pipe 1 is connected by pipeline with reactive tank circulation port 33, pipeline is provided with recycle pump 2; Described air compressor machine 9 is connected with airduct 1#13, airduct 2#12, airduct 3#11 by airduct 4#10, and airduct 1#13, airduct 2#12, airduct 3#11 are connected with aeration tube 1#34, aeration tube 2#35, aeration tube 3#36 respectively, described airduct 1#13, airduct 3#11 and H 2o 2chemicals dosing plant 4 is respectively by chemical feed pipe 1#14, chemical feed pipe 2#15 connects, chemical feed pipe 1#14, and chemical feed pipe 2#15 is respectively arranged with spraying gun 1#7, spraying gun 2#6 on connecting, described airduct 2#12 is connected by chemical feed pipe 3#16 with ferrous chemicals dosing plant 5, chemical feed pipe 3#16 is provided with spraying gun 3#8.
Waste water enters reaction cell body by liquid-inlet pipe and liquid pool, and the inwall of liquid pool on the top of reaction cell body in the form of a ring surrounding is arranged, to ensure the homogeneity of feed liquor, avoids the impact causing local liquid stream, the fluid power condition in homogenizing reactive tank simultaneously; Waste water flows through the main reaction region of middle portion from top to bottom, adds dioxygen liquid and ferrous iron solution in main reaction region by aeration tube, and aeration agitation is conducive to fully carrying out of reaction simultaneously; Aerated conduit is divided into three layers of layout from top to bottom, add dioxygen liquid respectively, ferrous iron and dioxygen liquid, dioxygen liquid and ferrous iron solution are all atomized by spraying gun, medicament is enter aeration tube together with vaporific and swiftly flowing air and entered uniformly in waste water by the perforate on aeration tube, the completely even of adding of agent can be ensured, adding of medicament can have slowly adding of control simultaneously, make all can to have within the whole fluid power residence time medicament and waste water that newly add, be conducive to the abundant reaction of medicament.The top-down caliber of aerated conduit increases gradually, is the pressure equilibrium in order to ensure in aeration tube pipeline, ensures that every layer of aeration is even.Waste water, entering the bottom of reactive tank after the reaction of main reaction region, reenters reactive tank liquid pool by recycle pump, carries out reaction of high order, improve treatment effect.Waste water after treatment flows out from the liquid outlet of bottom opposite side.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art are to the amendment of the various equivalent form of value of the present utility model, as in the dosing reactor of similar adding medicine, all fall into the application's claims limited range.

Claims (9)

1. a dosing reactor, is characterized in that, comprises reaction cell body (38), is arranged at least one aeration tube (34,35,36) in reaction cell body (38), and by air-supply arrangement that airduct (10) and aeration tube (34,35,36) are communicated with; Described airduct (10) is connected by chemical feed pipe (14) and chemicals dosing plant (4,5); Described reaction cell body (38) top is provided with liquid pool (31), between the bottom and liquid pool (31) of reaction cell body (38), be provided with recycle pump (2); The liquid feeding end of described recycle pump (2) and the circulation port (33) of the bottom of reaction cell body (38) are by pipeline communication, and the outlet end of this recycle pump (2) is communicated with the fluid inlet (32) of liquid pool (31).
2. dosing reactor according to claim 1, is characterized in that, described chemicals dosing plant (4,5) is for multiple, and each chemicals dosing plant is communicated with corresponding airduct by independent chemical feed pipe (14).
3. dosing reactor according to claim 1 and 2, is characterized in that, chemical feed pipe (14) described in every root is all equipped with spraying gun (6,7,8).
4. dosing reactor according to claim 1 and 2, is characterized in that, the tip height of described liquid pool (31) is higher than the liquid level reacting cell body (38) Inner.
5. dosing reactor according to claim 1 and 2, is characterized in that, described dosing reactor is Fenton dosing reactor, and described chemicals dosing plant (4,5) is H 2o 2chemicals dosing plant (4) and ferrous chemicals dosing plant (5), wherein H 2o 2chemicals dosing plant (4) is by two chemical feed pipes airduct (11 corresponding to two, 13) be communicated with, ferrous chemicals dosing plant (5) is communicated with by the airduct (12) that chemical feed pipe is corresponding to, described aeration tube comprises aeration tube 1#(34), aeration tube 2#(35) and aeration tube 3#(36), wherein aeration tube 1#(34) and aeration tube 3#(36) by airduct, chemical feed pipe and described H 2o 2chemicals dosing plant (4) is connected, aeration tube 2#(35) be connected with described ferrous chemicals dosing plant (5) by airduct, chemical feed pipe, and aeration tube 2#(35) be positioned at aeration tube 1#(34) and aeration tube 3#(36) between.
6. dosing reactor according to claim 1 and 2, is characterized in that, described aeration tube (34,35,36) is order font boring aeration pipe.
7. dosing reactor according to claim 1 and 2, is characterized in that, described liquid pool is arranged circumferentially along reaction cell body (38) and reactive tank (3) is divided into two portions.
8. dosing reactor according to claim 1 and 2, is characterized in that, the reflux ratio of described recycle pump (2) is set to 1:1 ~ 1:5.
9. dosing reactor according to claim 1 and 2, is characterized in that, described aeration tube is provided with multilayer from top to bottom, and the caliber of the aeration tube on upper strata is less than the caliber of lower floor's aeration tube.
CN201520281265.3U 2015-05-05 2015-05-05 A kind of dosing reactor Active CN204607668U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106512770A (en) * 2016-08-16 2017-03-22 深圳前海三思国际环保科技有限公司 Equipment and treatment system for treating low-concentration waste sewage and application
CN106517670A (en) * 2016-12-19 2017-03-22 天津凯英科技发展股份有限公司 Advanced treatment technology for wastewater
CN107555670A (en) * 2017-10-31 2018-01-09 蒙城县弘文信息科技有限公司 A kind of multi-layer sewage disposal absorbs cabin
CN109956534A (en) * 2019-04-03 2019-07-02 农业农村部环境保护科研监测所 A kind of equipment and its application method of gas injection spray purification sewage
CN111196668A (en) * 2020-02-17 2020-05-26 南京大学盐城环保技术与工程研究院 Emergency treatment method for benzene-containing strong-acid chemical wastewater

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106512770A (en) * 2016-08-16 2017-03-22 深圳前海三思国际环保科技有限公司 Equipment and treatment system for treating low-concentration waste sewage and application
CN106517670A (en) * 2016-12-19 2017-03-22 天津凯英科技发展股份有限公司 Advanced treatment technology for wastewater
CN106517670B (en) * 2016-12-19 2019-10-15 天津凯英科技发展股份有限公司 A kind of advanced treatment process of waste water
CN107555670A (en) * 2017-10-31 2018-01-09 蒙城县弘文信息科技有限公司 A kind of multi-layer sewage disposal absorbs cabin
CN109956534A (en) * 2019-04-03 2019-07-02 农业农村部环境保护科研监测所 A kind of equipment and its application method of gas injection spray purification sewage
CN111196668A (en) * 2020-02-17 2020-05-26 南京大学盐城环保技术与工程研究院 Emergency treatment method for benzene-containing strong-acid chemical wastewater

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CP01 Change in the name or title of a patent holder

Address after: No. 16, camphor East Road, Yuhua District, Changsha, Hunan

Patentee after: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd.

Patentee after: China Power Construction Environmental Protection Technology Co.,Ltd.

Address before: No. 16, camphor East Road, Yuhua District, Changsha, Hunan

Patentee before: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd.

Patentee before: Hunan Zhongnan Water Environmental Protection Technology Co.,Ltd.

CP01 Change in the name or title of a patent holder