CN103542413B - Neutralization gasification and gas solid separation formula low heat value liquid waste incineration before processing method and device - Google Patents
Neutralization gasification and gas solid separation formula low heat value liquid waste incineration before processing method and device Download PDFInfo
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Abstract
Disclosed by the invention neutralization gasification and gas solid separation formula low heat value liquid waste incineration before processing method, it first pending low heat value waste liquid is carried out meta-alkalescence allotment, make acidic materials in low heat value waste liquid or/and alkaline matter is effectively neutralized, meta-alkalescence waste liquid pH value after neutralization is 7.5 ~ 8.5, it sprays into neutralization gasification tower by infusion pump and steam twin spray gun, in and gasification tower in high-temperature flue gas effect under, meta-alkalescence waste liquid after atomization is vaporized rapidly and obtains neutralization further and forms mist, described mist is sent into gas-solid separating device and is carried out gas solid separation, gas after separation sends into burning disposal in incinerator.Energy-saving effect of the present invention is outstanding, stable and safe in operation is remarkably productive.The invention also discloses is realize neutralization gasification and the device of processing method before gas solid separation formula low heat value liquid waste incineration.
Description
Technical field
The present invention relates to toxic waste liquid processing technology field in industrial hazard discarded object, particularly neutralization gasification and gas solid separation formula low heat value liquid waste incineration before processing method and device.
Background technology
Current domestic and international market apply in the incineration treatment method of toxic waste liquid, the solvent slop that in waste liquid, calorific value is higher to spray in stove i.e. incendivity through atomizing lance, can be used as fuel and is used.But need majority in the waste liquid of burning disposal to be low heat value waste liquid, some waste liquids do not have calorific value substantially.And salt concentration in low heat value waste liquid, acid base concentration differ greatly, the combustible also containing varying number distinct in some low heat value waste liquids.These low heat value waste liquids are comparatively large to incinerator and corrosive pipeline in burning process, and on the liquid slag formed after the burning furnace wall that easily hangs over incinerator and duct wall, cleaning difficulty, easily results in blockage.
Summary of the invention
One of technical problem to be solved by this invention is the complex based on low heat value waste liquid, for guaranteeing safe and reliable, the stable operation of burning processing system to the process of all kinds of different low heat value liquid waste incineration, CIU facility preserves from, and provides a kind of and neutralize gasification and processing method before gas solid separation formula low heat value liquid waste incineration.
Two of technical problem to be solved by this invention is to provide and realizes above-mentioned neutralization gasification and the device of processing method before gas solid separation formula low heat value liquid waste incineration.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
Neutralization gasification and gas solid separation formula low heat value liquid waste incineration before processing method, it first pending low heat value waste liquid is carried out meta-alkalescence allotment, make acidic materials in low heat value waste liquid or/and alkaline matter is effectively neutralized, meta-alkalescence waste liquid pH value after neutralization is 7.5 ~ 8.5, it sprays into neutralization gasification tower by infusion pump and steam twin spray gun, in and gasification tower in high-temperature flue gas effect under, meta-alkalescence waste liquid after atomization is vaporized rapidly and obtains neutralization further and forms mist, described mist is sent into gas-solid separating device and is carried out gas solid separation, gas after separation sends into burning disposal in incinerator.
In a preferred embodiment of the invention, the temperature of described high-temperature flue gas is at 350 DEG C ~ 550 DEG C.
Neutralization gasification and gas solid separation formula low heat value liquid waste incineration before treating apparatus, comprise a gasification air blast, a neutralization gasification tower, a gas-solid separating device, gasification air-introduced machine, a meta-alkalescence waste tank, wherein pH value be 7.5 ~ 8.5 meta-alkalescence waste liquid be stored in described meta-alkalescence waste tank, this meta-alkalescence waste tank is provided with a meta-alkalescence waste liquid outlet, this meta-alkalescence waste liquid outlet is connected to the steam-type twin spray gun of described neutralization gasification top of tower by pipeline and infusion pump, and the steam pipe of this steam-type twin spray gun connects steam; The top that described gasification air blast is arranged on described neutralization gasification tower blasts high-temperature flue gas in neutralization gasification tower, gasifies to the meta-alkalescence waste liquid after steam atomization; This gasification air blast is also configured with a smoke inlet, and this smoke inlet exports with the high-temperature flue gas of CIU and is connected; In and gasification tower bottom be provided with mixed gas outlet, this mixed gas outlet is connected to the entrance of gas-solid separating device by mixed gas delivery pipe, mist in neutralization gasification tower after gasification is sent into gas-solid separating device by mixed gas outlet and is carried out gas solid separation, and the mist after gas solid separation sends into the combustion chamber of incinerator by induced duct and gasification air-introduced machine.
Owing to have employed technical scheme as above, compared with prior art, tool has the following advantages in the present invention:
1, energy-saving effect is given prominence to: the steam utilizing CIU self to produce is atomized the low heat value waste liquid allocated through meta-alkalescence, the fume afterheat in CIU is utilized again to gasify to the low heat value waste liquid after atomization, reenter gas-solid separating device after low heat value waste liquid is vaporized and carry out gas solid separation, the impurity such as removing inorganic salts, the mist after removing impurity sends into burning disposal in incinerator.Owing to reentering burning disposal in incinerator after the gasification of low heat value waste liquid, less on furnace temperature impact, therefore without the need to increasing combustion-supporting fuel, thus change tradition and adopt compressed air to carry out being atomized to low heat value waste liquid and directly spray in incinerator to burn the situation of a large amount of electric energy and combustion-supporting fuel of need consuming.
2, stable and safe in operation is remarkably productive: utilize steam to be atomized low heat value waste liquid, utilizes flue gas to gasify to low heat value waste liquid, strictly controls the oxygen content entered in neutralization gasification tower, effectively prevent the generation firing phenomenon.The impurity such as inorganic salts remove before entering incinerator, avoid it and enter the harm that the melting of stove burning high temperature causes CIU facility.
Accompanying drawing explanation
Fig. 1 is in the present invention and gasification the structural representation for the treatment of apparatus before gas solid separation formula low heat value liquid waste incineration.
Fig. 2 is the A place enlarged diagram of Fig. 1.
Fig. 3 is the B place enlarged diagram of Fig. 1.
Fig. 4 is the C place enlarged diagram of Fig. 1.
Fig. 5 is the D place enlarged diagram of Fig. 1.
Detailed description of the invention
The present invention is further described below in conjunction with the drawings and specific embodiments.
See Fig. 1 to Fig. 5, the neutralization that provides in figure gasification treating apparatus before gas solid separation formula low heat value liquid waste incineration, comprise neutralization gasification tower 100, gas-solid separating device 200, gasification air-introduced machine 300, meta-alkalescence waste tank 400 and gasification air blast 500.
First pending low heat value waste liquid is carried out meta-alkalescence allotment, make acidic materials in low heat value waste liquid or/and alkaline matter is effectively neutralized, the meta-alkalescence waste liquid pH value after neutralization is 7.5 ~ 8.5, and it is stored in meta-alkalescence waste tank 400.
This meta-alkalescence waste tank 400 is provided with a meta-alkalescence waste liquid outlet 410, this meta-alkalescence waste liquid outlet 410 is connected to the steam-type twin spray gun 110 at neutralization gasification tower 100 top by pipeline 420,430 and infusion pump 440, the steam pipe 111 of this steam-type twin spray gun 110 connects steam, and the meta-alkalescence waste liquid like this after neutralization is sprayed in neutralization gasification tower 100 with spray pattern by infusion pump 440 and steam twin spray gun 110.
The air blast 500 that simultaneously gasifies is configured in the top of neutralization gasification tower 100, it has a smoke inlet 510, the temperature that CIU is come, in 380 DEG C ~ 420 DEG C high-temperature flue gas are blasted by this smoke inlet 510 and gasification air blast 500 and in gasification tower 100, makes the meta-alkalescence waste liquid after steam atomization be vaporized rapidly and obtains neutralization further to form mist.
In and gasification tower 100 bottom be provided with mixed gas outlet 120, this mixed gas outlet 120 is connected to the entrance of gas-solid separating device 200 by mixed gas delivery pipe 210, mist in neutralization gasification tower 100 after gasification sends in gas-solid separating device 200 by mixed gas outlet 120 impurity such as carrying out gas solid separation removing inorganic salts, and burning disposal is carried out in the combustion chamber that the mist after gas solid separation sends into incinerator by induced duct 310 and gasification air-introduced machine 300.
Claims (3)
1. in and gasification and gas solid separation formula low heat value liquid waste incineration before processing method, it first pending low heat value waste liquid is carried out meta-alkalescence allotment, make acidic materials in low heat value waste liquid or/and alkaline matter is effectively neutralized, meta-alkalescence waste liquid pH value after neutralization is 7.5 ~ 8.5, it sprays into neutralization gasification tower by infusion pump and steam twin spray gun, in and gasification tower in high-temperature flue gas effect under, meta-alkalescence waste liquid after atomization is vaporized rapidly and obtains neutralization further and forms mist, described mist is sent into gas-solid separating device and is carried out gas solid separation, gas after separation sends into burning disposal in incinerator.
2. processing method as claimed in claim 1, it is characterized in that, the temperature of described high-temperature flue gas is at 350 DEG C ~ 550 DEG C.
3. in and gasification and gas solid separation formula low heat value liquid waste incineration before treating apparatus, comprise a gasification air blast, a neutralization gasification tower, a gas-solid separating device, gasification air-introduced machine, a meta-alkalescence waste tank, wherein pH value be 7.5 ~ 8.5 meta-alkalescence waste liquid be stored in described meta-alkalescence waste tank, this meta-alkalescence waste tank is provided with a meta-alkalescence waste liquid outlet, this meta-alkalescence waste liquid outlet is connected to the steam-type twin spray gun of described neutralization gasification top of tower by pipeline and infusion pump, and the steam pipe of this steam-type twin spray gun connects steam; The top that described gasification air blast is arranged on described neutralization gasification tower blasts high-temperature flue gas in neutralization gasification tower, gasifies to the meta-alkalescence waste liquid after steam atomization; This gasification air blast is also configured with a smoke inlet, and this smoke inlet exports with the high-temperature flue gas of CIU and is connected; In and gasification tower bottom be provided with mixed gas outlet, this mixed gas outlet is connected to the entrance of gas-solid separating device by mixed gas delivery pipe, mist in neutralization gasification tower after gasification is sent into gas-solid separating device by mixed gas outlet and is carried out gas solid separation, and the mist after gas solid separation sends into the combustion chamber of incinerator by induced duct and gasification air-introduced machine.
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| CN101585620A (en) * | 2009-06-26 | 2009-11-25 | 河北建新化工股份有限公司 | Method for comprehensively treating high salt content organic industrial wastewater |
| KR100967747B1 (en) * | 2010-03-24 | 2010-07-05 | 노영수 | Process and system for processing liquid waste |
| CN102042602A (en) * | 2009-10-16 | 2011-05-04 | 上海煜工环保科技有限公司 | Processing method and device for incinerating toxic waste liquid by smoke concentration and gasification |
| CN202002119U (en) * | 2010-11-11 | 2011-10-05 | 上海煜工环保科技有限公司 | Treatment device for condensation, gasification and incineration of organic waste liquid via flue gas |
| CN202048576U (en) * | 2011-01-11 | 2011-11-23 | 烟台绿环再生资源有限公司 | Pyrolysis and gasification furnace with feeding spray gun |
| CN102889602A (en) * | 2012-07-10 | 2013-01-23 | 上海禾子隆环保科技有限公司 | High-concentration salt bearing liquid waste incinerator and high-concentration salt bearing liquid waste treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS51125955A (en) * | 1974-09-17 | 1976-11-02 | Kuraray Co Ltd | Method of combustion treatment of alkaline waste liquor |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585620A (en) * | 2009-06-26 | 2009-11-25 | 河北建新化工股份有限公司 | Method for comprehensively treating high salt content organic industrial wastewater |
| CN102042602A (en) * | 2009-10-16 | 2011-05-04 | 上海煜工环保科技有限公司 | Processing method and device for incinerating toxic waste liquid by smoke concentration and gasification |
| KR100967747B1 (en) * | 2010-03-24 | 2010-07-05 | 노영수 | Process and system for processing liquid waste |
| CN202002119U (en) * | 2010-11-11 | 2011-10-05 | 上海煜工环保科技有限公司 | Treatment device for condensation, gasification and incineration of organic waste liquid via flue gas |
| CN202048576U (en) * | 2011-01-11 | 2011-11-23 | 烟台绿环再生资源有限公司 | Pyrolysis and gasification furnace with feeding spray gun |
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