CN104874207A - Jet-stream defoaming device - Google Patents
Jet-stream defoaming device Download PDFInfo
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- CN104874207A CN104874207A CN201510294543.3A CN201510294543A CN104874207A CN 104874207 A CN104874207 A CN 104874207A CN 201510294543 A CN201510294543 A CN 201510294543A CN 104874207 A CN104874207 A CN 104874207A
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- foam
- alkali lye
- defoaming device
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Abstract
The invention relates to a jet-stream defoaming device. The jet-stream defoaming device comprises a foam suction tube, a defoaming tube, an air-liquid separator and an airflow blowing mechanism blowing airflow to the defoaming tube. The foam suction tube is penetratingly arranged on an alkaline-liquid circulating tank, an inlet of the foam suction tube is arranged above the alkaline liquid level, the defoaming tube is provided with a foam inlet, and an outlet of the foam suction tube is communicated with the foam inlet. One end of the defoaming tube is connected with the airflow blowing mechanism, and the other end of the defoaming tube is communicated with the air-liquid separator. The jet-stream defoaming device adopting a jet-stream defoaming method is good in defoaming effect, the alkaline liquid is not polluted or diluted and production is unaffected.
Description
Technical field
The present invention relates to a kind of high velocity air defoaming device, when producing for cold-strip steel degreasing, eliminate foam too much in alkali lye circulating tank.
Background technology
Band steel, before the rear operation process such as annealing, coating, needs to arrange degreasing section and cleans the grease of belt steel surface after rolling.During normal production, degreaser (usually also claiming alkali lye) recycles between alkaline bath and alkali lye circulating tank, owing to usually all containing the composition such as alkali and surfactant in alkali lye, under being mixed into and washing away stirring action external condition of air, inevitably produce a large amount of foams, final foam is gathered in alkali lye circulating tank.Too much foam can overflow from circulating tank, not only causes the loss of active ingredient in alkali lye, affects degreasing effect, increases production cost, also can pollute the operating environment of cleaning section.
The chemical froth breaking method of adding defoamer in alkali lye is mostly adopted to carry out froth breaking, as patent ZL200820218185.3 and ZL200820012731.8 discloses the defoaming device adding defoamer at present.Chemistry froth breaking method not only increases production cost, and is insoluble to due to defoamer or is slightly soluble in alkali lye, exists often with a certain size particle, therefore can accelerate washer jet blocking, affects degreasing and produces.In addition, the hardly degraded organic substances such as the organosilicon contained in defoamer or polyethers enter in alkali lye, cause alkali lye to pollute, add the intractability of inefficacy alkali lye simultaneously.
Therefore be necessary to design a kind of high velocity air defoaming device, to overcome the problems referred to above.
Summary of the invention
The object of the invention is to the defect overcoming prior art, provide a kind of high velocity air defoaming device, its defoaming effect is good, do not pollute alkali lye, be easy to realize automatic control, easy to maintenance, operation stability is higher.
The present invention is achieved in that
The invention provides a kind of high velocity air defoaming device, comprise foam suction line, froth breaking pipe, gas-liquid separator and the air flow blowing mechanism to described froth breaking pipe supply blast pass; Described foam suction line is arranged on alkali lye circulating tank, and the entrance of described foam suction line is positioned at alkali lye circulating tank and is positioned at alkali lye ullage, and described froth breaking pipe is provided with foam inlet, and the outlet of described foam suction line is communicated with described foam inlet; Described froth breaking pipe one end is connected with described air flow blowing mechanism, and the other end is communicated with described gas-liquid separator.
Further, described air flow blowing mechanism comprises air flow blowing pipe, the arrival end of described air flow blowing pipe is connected with high-pressure air source, and the port of export is provided with air-flow spout, on the same radial section being centrally located at described froth breaking pipe of described air-flow spout and described foam inlet.
Further, described air flow blowing pipe is provided with the control valve controlling blast pass flow.
Further, described alkali lye circulating tank is provided with the foam detector detecting foam height; Described defoaming device also comprises central controller, and the input of described foam detector and described central controller is electrically connected, and described control valve is motor-driven valve or pneumatic operated valve, and the output of described control valve and described central controller is electrically connected.
Further, described gas-liquid separator comprises gas-liquid separation section, and described gas-liquid separation section is cylindrical tube or conic tube, and described froth breaking pipe is communicated with described gas-liquid separation section is tangent.
Further, along airflow direction, described froth breaking pipe reduces gradually near the side caliber of described gas-liquid separation section.
Further, described gas-liquid separator also comprises exhaust outlet and leakage fluid dram, and described exhaust outlet and leakage fluid dram are located at above and below described gas-liquid separation section respectively; Described alkali lye circulating tank is provided with alkali lye refluxing opening, and described leakage fluid dram is communicated with described alkali lye refluxing opening.
Further, described foam suction line comprises cone trunk portion and the cylinder part for sucking foam, described cone trunk portion comprises the smaller diameter end be communicated with described foam inlet and the closed larger diameter end being positioned at described alkali lye circulating tank, and described cylinder part is communicated with described cone trunk portion is tangent.
Further, the flow velocity of described blast pass is at more than 100m/s.
Further, on the described foam suction line top that is arranged in described alkali lye circulating tank or sidewall.
The present invention has following beneficial effect: adopt high velocity air to carry out the method for froth breaking, produce negative pressure by high velocity air of jetting in froth breaking pipe thus suck foam, foam is subject to the percussion of high velocity air in froth breaking pipe, the shearing force of high velocity air and the effect of centrifugal force is subject in gas-liquid separator, thus defoaming effect is better, and alkali lye do not polluted or dilute, thus do not affect production.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the defoaming device that Fig. 1 provides for the embodiment of the present invention;
The structural representation that the gas-liquid separator that Fig. 2 provides for the embodiment of the present invention is connected with froth breaking pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
As Fig. 1-Fig. 2, the embodiment of the present invention provides a kind of high velocity air defoaming device, comprises foam suction line 5, froth breaking pipe 4, gas-liquid separator 1 and supplies the air flow blowing mechanism of blast pass to described froth breaking pipe 4.Described foam suction line 5 is arranged on alkali lye circulating tank 10, the entrance of described foam suction line 5 is positioned at alkali lye 12 ullage, be specially foam 11 region in alkali lye circulating tank 10, the entrance height position of foam suction line 5 is determined according to actual conditions, consider foam 11 production in alkali lye circulating tank 10 and alkali lye 12 liquid level, avoid part alkali lye 12 be inhaled into and regenerate foam 11 under the stirring action of air-flow.Described froth breaking pipe 4 is provided with foam inlet, and the outlet of described foam suction line 5 is communicated with described foam inlet; Described froth breaking pipe 4 one end is connected with described air flow blowing mechanism, and the other end is communicated with described gas-liquid separator 1.
Wherein, described gas-liquid separator 1 comprises the exhaust outlet 2 being located at top, the leakage fluid dram 3 being located at bottom and gas-liquid separation section between exhaust outlet 2 and leakage fluid dram 3; Gas-liquid separation section is the agent structure of this gas-liquid separator 1, for being separated with alkali lye 12 by air-flow, therefore, this gas-liquid separation section is set to cylindrical tube or conic tube, and described froth breaking pipe 4 is communicated with described gas-liquid separation section is tangent; During for conic tube, should be up-narrow and down-wide conic tube.Further, along airflow direction, described froth breaking pipe 4 reduces gradually near the side caliber of described gas-liquid separation section, namely the port of export of froth breaking pipe 4 is cone cylinder shape, the air-flow velocity entering gas-liquid separator 1 can be improved, increase the tangential force of air-flow in gas-liquid separator 1, thus improve the eradicating efficacy of foam 11.In addition, above-mentioned exhaust outlet 2 is connected with fog discharge system, through exhaust outlet 2 discharge air-flow be collected can arrange outward or as compressed gas source for air-flow spraying and blowing organ, do not affect scene working environment.Alkali lye circulating tank 10 is provided with alkali lye refluxing opening, and described leakage fluid dram 3 is communicated with described alkali lye refluxing opening, and the two is preferably Flange joint, mounts and dismounts all more convenient, is convenient to safeguard.The defoaming device that the present embodiment provides can be installed on alkali lye circulating tank 10 top or sidepiece, and namely on foam suction line 5 top that is arranged in alkali lye circulating tank 10 or sidewall, the entrance of this foam suction line 5 is positioned at foam 11 region of alkali lye circulating tank 10; Reflux for ease of the alkali lye 12 in gas-liquid separator 1, preferably this defoaming device is installed on alkali lye circulating tank 10 top, the alkali lye 12 of backflow contacts with the foam 11 in alkali lye circulating tank 10, also can eliminate part foam 11.
As Fig. 1, described air flow blowing mechanism comprises air flow blowing pipe 6, and the arrival end of described air flow blowing pipe 6 is connected with high-pressure air source, and the port of export is provided with air-flow spout 7.Air flow blowing pipe 6 can be inserted in froth breaking pipe 4 or be communicated with by the inlet end portion of gassing pipe with froth breaking pipe 4, is preferably inserted in froth breaking pipe 4, is easier in froth breaking pipe 4, form negative pressure and suck foam 11.Usually, the foam inlet of froth breaking pipe 4 is positioned at the centre position of froth breaking pipe 4, namely between the arrival end and the port of export of this froth breaking pipe 4; The insertion depth of air flow blowing pipe 6 is: air-flow spout 7 can, between the port of export of froth breaking pipe 4 and foam inlet, also can between the arrival end of froth breaking pipe 4 and foam inlet, or be located near foam inlet; Be preferably and the center of air-flow spout 7 with foam inlet is located on the same radial section of described froth breaking pipe 4.Foam suction line 5 is directly communicated with froth breaking pipe 4, and the two can vertically connect or angled connection; For situation connected vertically, namely air-flow spout 7 is positioned on the axis of foam suction line 5.Take this structure, air-flow spout 7 jet high velocity air time, under jet action, namely form negative pressure at foam inlet place, the short and attraction of operating distance is strong, sucks Be very effective; And for air-flow spout 7 between the port of export and foam inlet of froth breaking pipe 4, or the situation between the arrival end and foam inlet of froth breaking pipe 4, because the distance of foam inlet distance negative pressure center is relatively far away, it is relatively weak that foam 11 sucks effect.
As Fig. 1, as a kind of preferred structure of the present embodiment, this defoaming device can realize Automated condtrol.Described air flow blowing pipe 6 arranges the control valve 8 controlling blast pass flow, and this control valve 8 is motor-driven valve or pneumatic operated valve; Described alkali lye circulating tank 10 is provided with the foam detector 9 detecting foam 11 height, described defoaming device also comprises central controller, described foam detector 9 is electrically connected with the input of described central controller, and described control valve 8 is electrically connected with the output of described central controller.The detection signal gathered by foam detector 9 occurs to central controller, and central controller by controlling the operating circuit of this control valve 8, thus controls the automatic opening and closing of this control valve 8, realizes automatically controlling.The control program adopted in this automatic control process adopts existing Automated condtrol program, without the need to other programming.
In addition, the suction that can arrange foam 11 is that rotation direction sucks, a rotation direction suction line is arranged to by foam suction line 5, concrete structure is: described foam suction line 5 comprises cone trunk portion and the cylinder part for sucking foam 11, described cone trunk portion comprises the smaller diameter end be communicated with described foam inlet and the closed larger diameter end being positioned at described alkali lye circulating tank 10, and described cylinder part is communicated with described cone trunk portion is tangent.This cylinder part both ends open, one end is communicated with foam 11 regional opening of alkali lye circulating tank 10, the other end is communicated with near above-mentioned larger diameter end and cylinder part are tangent, when foam inlet and the above-mentioned smaller diameter end annex formation negative pressure of froth breaking pipe 4, foam 11 is inhaled into from cylinder part one end, the foam 11 sucked tangentially enters in cone trunk portion, because the alkali lye 12 in foam 11 is different with the centrifugal force of gas, foam 11 in cone trunk portion due to the effect of tangential force and centrifugal force under break, thus the foam 11 of part can be eliminated, improve defoaming effect further.For ensure in froth breaking pipe 4 produce vacuum effect and gas-liquid separator 1 in defoaming effect, the flow velocity of described blast pass should at more than 100m/s.
The course of work of the defoaming device that the present embodiment provides is as follows:
When foam detector 9 detects that in alkali lye circulating tank 10, foam 11 reaches limit level (can set) of setting, the control valve 8 of interlocking with foam detector 9 is opened automatically, flow velocity sprays in froth breaking pipe 4 by air flow blowing pipe 6 via air-flow spout 7 more than the high velocity air of 100m/s, jet action is formed during ejection due to high velocity air, negative pressure is formed in foam suction line 5, foam 11 in alkali lye circulating tank 10 is inhaled in froth breaking pipe 4 via foam suction line 5, major part foam 11 is subject to the impact of high velocity air in froth breaking pipe 4 and fragmentation forms gas-liquid mixture, this gas-liquid mixture together with remaining small part foam 11 by tangentially entering in gas-liquid separator 1, under the effect of high velocity air shearing force and centrifugal force, foam 11 is fractured into gas and alkali lye 12, gas-liquid mixture is also separated into gas and alkali lye 12 simultaneously, gas enters fog discharge system via top vent 2, alkali lye 12 by leakage fluid dram 3 gravity reflux bottom gas-liquid separator 1 in alkali lye circulating tank 10.This process lasts carries out, and can realize continuous froth breaking.When foam detector 9 detects that in alkali lye circulating tank 10, foam 11 reaches low limit level (can set) of setting, the control valve 8 of interlocking with foam detector 9 is closed automatically, and defoaming device quits work.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a high velocity air defoaming device, is characterized in that: comprise foam suction line, froth breaking pipe, gas-liquid separator and the air flow blowing mechanism to described froth breaking pipe supply blast pass; Described foam suction line is arranged on alkali lye circulating tank, and the entrance of described foam suction line is positioned at alkali lye circulating tank and is positioned at alkali lye ullage, and described froth breaking pipe is provided with foam inlet, and the outlet of described foam suction line is communicated with described foam inlet; Described froth breaking pipe one end is connected with described air flow blowing mechanism, and the other end is communicated with described gas-liquid separator.
2. high velocity air defoaming device according to claim 1, it is characterized in that: described air flow blowing mechanism comprises air flow blowing pipe, the arrival end of described air flow blowing pipe is connected with high-pressure air source, the port of export is provided with air-flow spout, on the same radial section being centrally located at described froth breaking pipe of described air-flow spout and described foam inlet.
3. high velocity air defoaming device according to claim 2, is characterized in that: described air flow blowing pipe is provided with the control valve controlling blast pass flow.
4. high velocity air defoaming device according to claim 3, is characterized in that: described alkali lye circulating tank is provided with the foam detector detecting foam height; Described defoaming device also comprises central controller, and the input of described foam detector and described central controller is electrically connected, and described control valve is motor-driven valve or pneumatic operated valve, and the output of described control valve and described central controller is electrically connected.
5. high velocity air defoaming device according to claim 1, is characterized in that: described gas-liquid separator comprises gas-liquid separation section, described gas-liquid separation section is cylindrical tube or conic tube, and described froth breaking pipe is communicated with described gas-liquid separation section is tangent.
6. high velocity air defoaming device according to claim 5, is characterized in that: along airflow direction, described froth breaking pipe reduces gradually near the side caliber of described gas-liquid separation section.
7. high velocity air defoaming device according to claim 5, is characterized in that: described gas-liquid separator also comprises exhaust outlet and leakage fluid dram, and described exhaust outlet and leakage fluid dram are located at above and below described gas-liquid separation section respectively; Described alkali lye circulating tank is provided with alkali lye refluxing opening, and described leakage fluid dram is communicated with described alkali lye refluxing opening.
8. high velocity air defoaming device according to claim 1, it is characterized in that: described foam suction line comprises cone trunk portion and the cylinder part for sucking foam, described cone trunk portion comprises the smaller diameter end be communicated with described foam inlet and the closed larger diameter end being positioned at described alkali lye circulating tank, and described cylinder part is communicated with described cone trunk portion is tangent.
9. high velocity air defoaming device according to claim 1, is characterized in that: the flow velocity of described blast pass is at more than 100m/s.
10. high velocity air defoaming device according to any one of claim 1 to 9, is characterized in that: on the top that described foam suction line is arranged in described alkali lye circulating tank or sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294543.3A CN104874207A (en) | 2015-06-02 | 2015-06-02 | Jet-stream defoaming device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510294543.3A CN104874207A (en) | 2015-06-02 | 2015-06-02 | Jet-stream defoaming device |
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| CN104874207A true CN104874207A (en) | 2015-09-02 |
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| CN201510294543.3A Pending CN104874207A (en) | 2015-06-02 | 2015-06-02 | Jet-stream defoaming device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430389A (en) * | 2016-10-27 | 2017-02-22 | 浙江大学苏州工业技术研究院 | Defoaming device and method for electrochemical wastewater treatment system |
| CN108444562A (en) * | 2018-06-21 | 2018-08-24 | 水利部南京水利水文自动化研究所 | A kind of liquid-volume measurement apparatus |
| CN110433719A (en) * | 2019-07-25 | 2019-11-12 | 成都海蓉特种纺织品有限公司 | A kind of defoaming formula agitating device |
| CN110523109A (en) * | 2019-08-27 | 2019-12-03 | 红云红河烟草(集团)有限责任公司 | Washing stalk waste water foam removal device |
| CN110818106A (en) * | 2019-11-26 | 2020-02-21 | 郑州维纳实验设备有限公司 | High-efficient aeration sewage treatment pond with defoaming function |
| CN110961256A (en) * | 2019-11-26 | 2020-04-07 | 贵州大学 | Ore pulp fire fighting equipment |
| CN113509752A (en) * | 2020-04-09 | 2021-10-19 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Foam separating device of flue gas desulfurization absorption tower |
| CN114471211A (en) * | 2022-01-24 | 2022-05-13 | 黑龙江中医药大学 | Preparation device and method of traditional Chinese medicine shampoo for conditioning scalp psoriasis |
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| JP2007319790A (en) * | 2006-06-01 | 2007-12-13 | Nippon Steel Corp | Defoaming device |
| CN201280444Y (en) * | 2008-10-16 | 2009-07-29 | 刘波 | High-efficiency whirlwind defoaming apparatus |
| CN204745753U (en) * | 2015-06-02 | 2015-11-11 | 中冶南方工程技术有限公司 | High -velocity air defoaming device |
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| JP2007319790A (en) * | 2006-06-01 | 2007-12-13 | Nippon Steel Corp | Defoaming device |
| CN201280444Y (en) * | 2008-10-16 | 2009-07-29 | 刘波 | High-efficiency whirlwind defoaming apparatus |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430389A (en) * | 2016-10-27 | 2017-02-22 | 浙江大学苏州工业技术研究院 | Defoaming device and method for electrochemical wastewater treatment system |
| CN106430389B (en) * | 2016-10-27 | 2023-06-09 | 浙江大学苏州工业技术研究院 | Defoaming device and method of wastewater electrochemical treatment system |
| CN108444562B (en) * | 2018-06-21 | 2023-12-05 | 水利部南京水利水文自动化研究所 | Liquid volume metering device |
| CN108444562A (en) * | 2018-06-21 | 2018-08-24 | 水利部南京水利水文自动化研究所 | A kind of liquid-volume measurement apparatus |
| CN110433719A (en) * | 2019-07-25 | 2019-11-12 | 成都海蓉特种纺织品有限公司 | A kind of defoaming formula agitating device |
| CN110433719B (en) * | 2019-07-25 | 2022-04-12 | 成都海蓉特种纺织品有限公司 | Defoaming formula agitating unit |
| CN110523109A (en) * | 2019-08-27 | 2019-12-03 | 红云红河烟草(集团)有限责任公司 | Washing stalk waste water foam removal device |
| CN110523109B (en) * | 2019-08-27 | 2024-02-23 | 红云红河烟草(集团)有限责任公司 | Foam removing device for washing stem waste water |
| CN110818106A (en) * | 2019-11-26 | 2020-02-21 | 郑州维纳实验设备有限公司 | High-efficient aeration sewage treatment pond with defoaming function |
| CN110961256A (en) * | 2019-11-26 | 2020-04-07 | 贵州大学 | Ore pulp fire fighting equipment |
| CN110818106B (en) * | 2019-11-26 | 2022-04-12 | 广州中晟水务环保科技有限公司 | High-efficient aeration sewage treatment pond with defoaming function |
| CN113509752A (en) * | 2020-04-09 | 2021-10-19 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Foam separating device of flue gas desulfurization absorption tower |
| CN113509752B (en) * | 2020-04-09 | 2023-10-20 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Foam separation device of flue gas desulfurization absorption tower |
| CN114471211A (en) * | 2022-01-24 | 2022-05-13 | 黑龙江中医药大学 | Preparation device and method of traditional Chinese medicine shampoo for conditioning scalp psoriasis |
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Application publication date: 20150902 |