CN109140463A - A kind of method that cyclohexanone saponification waste lye burns - Google Patents
A kind of method that cyclohexanone saponification waste lye burns Download PDFInfo
- Publication number
- CN109140463A CN109140463A CN201710444159.6A CN201710444159A CN109140463A CN 109140463 A CN109140463 A CN 109140463A CN 201710444159 A CN201710444159 A CN 201710444159A CN 109140463 A CN109140463 A CN 109140463A
- Authority
- CN
- China
- Prior art keywords
- waste
- lye
- cyclohexanone
- incinerator
- burns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/20—Supplementary heating arrangements using electric energy
- F23G2204/204—Induction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/10—Liquid waste
- F23G2209/101—Waste liquor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50213—Preheating processes other than drying or pyrolysis
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a kind of method that cyclohexanone saponification waste lye burns, this method is sprayed into salkali waste incinerator and is burnt with atomised form after cyclohexanone saponification waste lye is preheated to 100~110 DEG C.Cyclohexanone saponification waste lye temperature after preheating is higher than water boiling point, after salkali waste is sprayed onto incinerator by spray gun, wherein moisture generates instant vaporization, it is saponified salkali waste dehydration and drying, it gradually burns in dropping process, to elongate combustion zone, improves combustion efficiency, cyclohexanone saponification waste lye waste heat is taken full advantage of simultaneously, reduces energy consumption.
Description
Technical field
The present invention relates to a kind of methods that cyclohexanone saponification waste lye burns, in particular to a kind of by improving incinerator
And technique, improve cyclohexanone saponification waste lye burning effect, the method for reducing energy consumption belongs to chemical production wastewater processing technique neck
Domain.
Background technique
Cyclohexanone saponification salkali waste is containing sodium carbonate, sodium hydroxide, carboxylic acid sodium, the organic matter etc. that process of cyclohexanone production generates
Technique waste water, COD concentration can generate 0.8 ton of saponification waste lye every about 1 ton of cyclohexanone of production up to 300,000 mg/L.This
Saponification waste lye is planted due to COD concentration height, pH value reach 10-14 than more intractable, if direct emission, it will cause serious environment
Pollution.
Currently, common cyclohexanone saponification waste lye treatment process be incineration method, as Chinese patent (application number:
201610229862.0) a kind of method using cyclohexanone saponification waste lye preparing soda and anhydrous sodium sulfate is disclosed.It burns
Method is exactly that saponification waste lye pump squeezes into salkali waste incinerator, is burned in the case where the fuel such as dry gas, natural gas, coal tar, slurry oil mix burning,
It burns the heat generated and passes through production stream mode recycling.The saponification salkali waste temperature that general pimelinketone device decomposition process comes is
95-97 DEG C, then first pipeline is transported to incinerator salkali waste charging alkali rifle with pump again, is atomized laggard to saponification salkali waste storage tank
Enter incinerator.In incinerator, salkali waste moisture in dropping process, which is gradually evaporated, dried and falls on, burns burner hearth burning zone.?
Burning zone is further dried to be ignited afterwards to a certain extent, forms bed course burning.Wherein combustable organic composition becomes carbon dioxide
And water, flue gas is formed together after economizer, air heat exchanger recycling heat with evaporation water, and smoke stack emission introduced by air-introduced machine.No
The components such as sodium carbonate, the sodium hydroxide that can be burnt form sodium carbonate fusion object and flow out from burner hearth bottom, the conduct after solid caustic soda recycles
Solid caustic soda by-product sale.In addition some sodium carbonate, sodium hydroxide powder are mixed in flue gas, are returned through electrostatic precipitation system
It receives, is transported to ash bucket pack export trade with scrapper conveyor.Existing method haves the defects that some substances, and saponification salkali waste is sent to salkali waste
Storage tank will cause certain thermal loss, can generally reduce by 5~10 DEG C.In addition, and salkali waste mainly bed course burning zone is dry, combustion
It burns, efficiency of combustion is relatively low.
Summary of the invention
Have the defects that salkali waste firing efficiency is not high for existing cyclohexanone saponification waste lye incinerator and burning process,
The purpose of the invention is to provide a kind of methods for improving cyclohexanone saponification waste lye firing efficiency；This method has operation letter
Single, at low cost, effect clear advantage.
In order to achieve the above technical purposes, the present invention provides a kind of method that cyclohexanone saponification waste lye burns, the party
Method is sprayed into salkali waste incinerator and is burnt with atomised form after cyclohexanone saponification waste lye is preheated to 100~110 DEG C.
The technological improvement of technical solution of the present invention key be by the preheating temperature of cyclohexanone saponification waste lye to 100 DEG C~
110 DEG C, it is higher than the atmospheric boiling point of water in 100 DEG C of temperatures above, after salkali waste enters incinerator by spray gun atomization, accelerates water
Flash distillation improves spent lye rate of drying, and most spent lyes just burn before declining to bed course, have thus elongated combustion
Band is burnt, is conducive to improve efficiency of combustion, realizes the reduction of energy consumption.
The preheating of preferred scheme, the cyclohexanone saponification waste lye is realized by electromagnetic heater.Technology of the invention
Scheme preferably uses electromagnetic heater, and electromagnetic heater technology is that the mistake of thermal energy is converted electrical energy into using electromagnetic induction principle
The alternating voltage of 50/60Hz is transformed into DC voltage by rectification circuit by journey, turns DC voltage using power control circuit
Change the high frequency voltage that frequency is 20~40kHz into, when the alternating current of high speed variation passes through coil, coil can generate high speed and become
The magnetic field of change generates countless small when the alternate magnetic force line in magnetic field passes through metallic conduit (magnetic conduction, conductive material), in pipe wall body
Vortex makes tube wall of pipeline self-heating itself and manages interior material progress heat exchange, achievees the purpose that heated material.Due to salkali waste
Containing the corrosive substance of the height such as sodium carbonate, sodium hydroxide, carboxylic acid sodium in liquid, it is easy to crystallization when temperature reduces, such as uses
Common heat exchanger heating, heat exchanger are easily corroded or are blocked, and electromagnetic heating be by being heated to conveying spent alkali line,
Pipe diameter is bigger, it is not easy to be blocked.
More preferably scheme, the electromagnetic heater are arranged in incinerator spent lye feed pump exit.Electromagnetic heater
It is preferably provided at incinerator spent lye feed pump exit, the cyclohexanone saponification waste lye after on the one hand preheating directly passes through atomization
Into incinerator, energy loss is reduced, another aspect incinerator spent lye feed pump exit pipe diameter is big, avoids pipeline stifled
Plug.
Further preferred scheme comes out cyclohexanone saponification waste lye from pimelinketone device decomposition process and is directly entered burning
Furnace spent lye feeds pump intake, after electromagnetic heater is preheated to 100~110 DEG C, sprays into salkali waste incinerator with atomised form
Inside burn.The cyclohexanone saponification waste lye that pimelinketone device decomposition process comes in the prior art is typically first transported to ring
Hexanone saponification waste lye storage tank, then be transported in incinerator and burned with pump, cyclohexanone saponification waste lye is easy to change in storage tank
Heat loss partial heat, and the cyclohexanone waste alkali after cooling is easy to precipitate crystal, and leads to line clogging.And the present patent application
Technical solution has sufficiently recycled the waste heat of the cyclohexanone saponification waste lye come from pimelinketone device decomposition process, on the one hand reduces
On the other hand the energy consumption of subsequent waste heat can prevent line clogging.
Preferred scheme, coming out cyclohexanone saponification waste lye temperature from pimelinketone device decomposition process is 95~97 DEG C of rings
Hexanone saponification waste lye waste heat with higher directly can reduce salkali waste storage heat waste into salkali waste incinerator without salkali waste storage tank
It loses, its waste heat is made to be fully used.If be introduced into storage tank, temperature can reduce by 5~10 DEG C.
Preferred scheme, cyclohexanone saponification waste lye are sprayed into salkali waste incinerator by 2.0~3.3MPa pressure.Pass through
Appropriate pressure injection can make cyclohexanone saponification waste lye high-efficient atomizing, and high degree of dispersion improves its combustion state.
Compared with the prior art, technical solution of the present invention bring advantageous effects:
1) combustion zone of the cyclohexanone saponification waste lye in salkali waste incinerator is elongated, it is obvious to improve efficiency of combustion；
2) so that cyclohexanone saponification waste lye is fully used, reduce burning fuel consumption, it is energy saving.
It is 3) easy to operate, it is easy to accomplish, be conducive to promote the use of.
Detailed description of the invention
[Fig. 1] be in the prior art salkali waste into incinerator flow diagram.
[Fig. 2] is salkali waste of the invention into incinerator flow diagram.
Wherein: 1- salkali waste storage tank, 2- salkali waste delivery pump, 3- incinerator, 4 be electromagnetic heater.
Specific embodiment
The content of present invention is described further with reference to the accompanying drawings and examples, not limits the claims in the present invention
Protection scope.
The cyclohexanone saponification waste lye of 13t/h is transported to salkali waste incinerator from pimelinketone device decomposition process, does not enter
Salkali waste storage tank 1 is directly entered 2 import of salkali waste delivery pump, 2.5MPa or so is forced by delivery pump, using on outlet conduit
Electromagnetic heater 4 burns subsequently into incinerator 3.Under this operating condition, fuel slurry oil consumption is 1.3t/h.And use this hair
Same salkali waste treating capacity before bright, fuel slurry oil consumption are 1.6t/h.
A specific embodiment of the invention is described in conjunction with attached drawing above, but these explanations cannot be understood to limit
The scope of the present invention, protection scope of the present invention are limited by appended claims, any on the claims basis
On change be all protection scope of the present invention.
Claims (6)
1. a kind of method that cyclohexanone saponification waste lye burns, it is characterised in that: cyclohexanone saponification waste lye is preheated to 100~
After 110 DEG C, is sprayed into salkali waste incinerator and burnt with atomised form.
2. the method that cyclohexanone saponification waste lye according to claim 1 burns, it is characterised in that: the cyclohexanone saponification
The preheating of spent lye is realized by electromagnetic heater.
3. the method that cyclohexanone saponification waste lye according to claim 2 burns, it is characterised in that: the electromagnetic heater
It is arranged in incinerator spent lye feed pump exit.
4. the method that described in any item cyclohexanone saponification waste lyes burn according to claim 1~3, it is characterised in that: from ring
Hexanone device decomposition process comes out cyclohexanone saponification waste lye and is directly entered incinerator spent lye charging pump intake, by electromagnetism plus
After hot device is preheated to 100~110 DEG C, is sprayed into salkali waste incinerator and burnt with atomised form.
5. the method that cyclohexanone saponification waste lye according to claim 4 burns, it is characterised in that: from pimelinketone device point
It is 95~97 DEG C that solution process, which comes out cyclohexanone saponification waste lye temperature,.
6. the method that cyclohexanone saponification waste lye according to claim 4 burns, it is characterised in that: cyclohexanone is saponified salkali waste
Liquid is sprayed into salkali waste incinerator by 2.0~3.3MPa pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444159.6A CN109140463B (en) | 2017-06-13 | 2017-06-13 | Method for incinerating cyclohexanone saponification waste alkali liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444159.6A CN109140463B (en) | 2017-06-13 | 2017-06-13 | Method for incinerating cyclohexanone saponification waste alkali liquor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109140463A true CN109140463A (en) | 2019-01-04 |
| CN109140463B CN109140463B (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710444159.6A Active CN109140463B (en) | 2017-06-13 | 2017-06-13 | Method for incinerating cyclohexanone saponification waste alkali liquor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1451140A (en) * | 1973-03-28 | 1976-09-29 | Bayer Ag | Process for the oxidation of hydrocarbons |
| CN1215696A (en) * | 1997-10-23 | 1999-05-05 | 巴陵石油化工公司鹰山石油化工厂 | Method and equipment for recovering sodium carbonate by incineration treatment of caprolactam saponification waste alkali liquor |
| CN1293223A (en) * | 1999-10-18 | 2001-05-02 | 巴陵石化鹰山石油化工厂 | Method for evaporating, concentrating and drying saponified waste alkali liquor |
| CN1354341A (en) * | 2000-11-17 | 2002-06-19 | 中国石油化工股份有限公司巴陵分公司 | Method for raising treatment capacity of saponified waste lye incinerator and its equipment |
| CN103822216A (en) * | 2014-03-18 | 2014-05-28 | 江苏星瑞化工工程科技有限公司 | Incineration method for saliferous organic mixed effluent |
| CN203656941U (en) * | 2013-12-31 | 2014-06-18 | 泰兴市裕廊化工有限公司 | Acrylic acid waste liquid incineration system |
-
2017
- 2017-06-13 CN CN201710444159.6A patent/CN109140463B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1451140A (en) * | 1973-03-28 | 1976-09-29 | Bayer Ag | Process for the oxidation of hydrocarbons |
| CN1215696A (en) * | 1997-10-23 | 1999-05-05 | 巴陵石油化工公司鹰山石油化工厂 | Method and equipment for recovering sodium carbonate by incineration treatment of caprolactam saponification waste alkali liquor |
| CN1293223A (en) * | 1999-10-18 | 2001-05-02 | 巴陵石化鹰山石油化工厂 | Method for evaporating, concentrating and drying saponified waste alkali liquor |
| CN1354341A (en) * | 2000-11-17 | 2002-06-19 | 中国石油化工股份有限公司巴陵分公司 | Method for raising treatment capacity of saponified waste lye incinerator and its equipment |
| CN203656941U (en) * | 2013-12-31 | 2014-06-18 | 泰兴市裕廊化工有限公司 | Acrylic acid waste liquid incineration system |
| CN103822216A (en) * | 2014-03-18 | 2014-05-28 | 江苏星瑞化工工程科技有限公司 | Incineration method for saliferous organic mixed effluent |
Non-Patent Citations (1)
| Title |
|---|
| 穆志刚，陕建平，师太平: "环己烷催化氧化工序中低温分解、皂化试验及工业应用", 《化学工业与工程技术》 * |
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| CN109140463B (en) | 2020-12-18 |
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