CN109990297A - Chemical industry saliferous hazardous waste harmless resource processing method - Google Patents
Chemical industry saliferous hazardous waste harmless resource processing method Download PDFInfo
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- CN109990297A CN109990297A CN201910283418.0A CN201910283418A CN109990297A CN 109990297 A CN109990297 A CN 109990297A CN 201910283418 A CN201910283418 A CN 201910283418A CN 109990297 A CN109990297 A CN 109990297A
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- combustion chamber
- hazardous waste
- gas
- chemical industry
- processing method
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- 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
- F23G7/02—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of bagasse, megasse or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of chemical industry saliferous hazardous waste harmless resource processing methods, comprising the following steps: fine grained powdery is made in hazardous waste by step 1；Fine grained powdery hazardous waste is sent into the first combustion chamber, and ensures VOCs gas after-flame by step 2；Step 3, the lime-ash and other pernicious gases that the first combustion chamber generates are burned by the second combustion chamber；Step 4, the volume of smoke and pernicious gas that the second combustion chamber generates are burned by third combustion chamber；Step 5, make the generation of third combustion chamber enters the two groups of province's burners and air preheater being arranged alternately without dioxin flue gas；Step 6 handles most flue dust in flue gas by fiber bag precipitator, and remainder gas enters in absorbing reaction tower, and last remaining gas is put into natural environment.The invention enables chemical industry saliferous hazardous wastes to have obtained innoxious, the processing of recycling.
Description
Technical field
The present invention relates to a kind of chemical industry saliferous hazardous waste harmless resource processing methods.
Background technique
There are a large amount of machine residue in agricultural chemicals enterprise, chemical company every year at present, and contain a large amount of salt, in the past by qualified
It handles unit and uses landfill disposal, but investigate and find through environmental protection administration, such processing mode seriously affects underground water source water quality.Separately
Outside, organic waste residues are complex in composition, toxicity is big, according to the method for burning, when temperature can then generate strong carcinogen lower than 1100 DEG C
Dioxin, and common incinerator processing saliferous dangerous waste operation has serious defect, and a large amount of salt slags can block furnace chamber therefore need to adopt
With continuous slag input, continuously the mode slagged tap carries out, but can not be slagged tap again with metal belt when furnace temperature is up to 1100 DEG C or more, this
So that common burning disposal mode is difficult to handle chemical industry saliferous hazardous waste.Therefore, applicant devises a kind of chemical industry
Saliferous hazardous waste harmless resource processing method, so that hazardous waste is to innoxious, the processing of recycling.
Summary of the invention
The object of the present invention is to provide a kind of chemical industry saliferous hazardous waste harmless resource processing methods, so that hazardous waste
To innoxious, the processing of recycling.
Realizing the technical solution of the object of the invention is: chemical industry saliferous hazardous waste harmless resource processing method, including with
Lower step:
Hazardous waste is transferred to hazardous waste cluster from each production unit, and fine grained powdery is made by step 1；
Fine grained powdery hazardous waste is sent into the first combustion chamber by conveying device, and ensures VOCs gas by step 2
After-flame；
Step 3, the lime-ash and other pernicious gases that the first combustion chamber generates are burned by the second combustion chamber, make ash
Uncombusted part, which is mended, in slag burns to after-flame, is discharged after thoroughly becoming inorganic salts；The dioxin gas in pernicious gas is existed simultaneously
It burns and eliminates in second combustion chamber；
Step 4, the volume of smoke and pernicious gas that the second combustion chamber generates are burned by third combustion chamber, thorough after-flame
The dioxin gas escaped from the second combustion chamber；
Step 5 generates third combustion chamber pre- into the two groups of province's burners and air being arranged alternately without dioxin flue gas
Hot device cools down to no dioxin flue gas, subsequently into fiber bag precipitator；
Step 6 handles most flue dust in flue gas by fiber bag precipitator, and remainder gas enters absorption
In reaction tower, the gases such as sulfur-bearing, halogen in gas are absorbed reaction tower absorption, after distilling, form solid-state, last remaining
Gas reaches discharge standard, from smoke stack emission into natural environment.
The fire box temperature of first combustion chamber is 800 DEG C~900 DEG C.
The fire box temperature of second combustion chamber is not less than 1100 DEG C.
The three-barreled fire box temperature is not less than 1200 DEG C.
The temperature of no dioxin flue gas is down to by the two groups of province's burners and air preheater being arranged alternately in the step 5
120 DEG C~140 DEG C.
After water-cooling wall in second combustion chamber and third combustion chamber is heated with water, it is collected to and catchments from water-cooling wall
Case, subsequently into hot water line, for producing and living.
In province's burner in the step 5, water from cooled water line and flue gas carry out heat exchange, the water after being heated into
Enter hot water line, for producing and living.
More heat exchangers are equipped with along the hot water line line, for adjusting hot water temperature, so as to the use that produces and live.
In air preheater in the step 5, by air blower air and flue gas from external environment are carried out
Heat exchange, air after being heated is for the first combustion chamber, the second combustion chamber and three-barreled burner hearth First air and secondary
The needs of wind.
Second combustion chamber, fiber bag precipitator and the solid-state salt obtained after distilling pass through separation work after air-cooled
Skill is placed in industrial salt, realizes resource utilization.
Using above-mentioned technical proposal, the present invention has the following beneficial effects: (1) present invention completely eliminates discharge gas
VOCs and dioxin gas in body；The heat quilt discharged in the solid-state salt and combustion process that the present invention generates simultaneously
Effective recycling, so that chemical industry saliferous hazardous waste obtains innoxious, the processing of recycling.
(2) for general pesticide producing enterprise year saliferous hazardous waste at 10000 tons or so, which allows at present qualification at present
Business processes, need 4000 yuan/ton of processing cost, and the cost of the method for the present invention processing is used to be lower than 1000 yuan/ton.
(3) present invention is provided with three combustion chambers, so that the first indoor part combustion share of combustion is transferred to dual firing chamber, it can
To reduce the first indoor high-temperature load of combustion, thus alleviate the first indoor high-temperature coking wall built-up problem of combustion, meanwhile, it substantially reduces
The construction and maintenance cost of first combustion chamber.
Specific embodiment
(embodiment 1)
The chemical industry saliferous hazardous waste harmless resource processing method of the present embodiment, comprising the following steps:
Hazardous waste is transferred to hazardous waste cluster from each production unit, and fine grained powdery is made by step 1；
Fine grained powdery hazardous waste is sent into the first combustion chamber by conveying device, and ensures fire box temperature by step 2
It is 800 DEG C~900 DEG C, makes VOCs gas after-flame；
Step 3, the lime-ash and other pernicious gases that the first combustion chamber generates are burned by the second combustion chamber, it is ensured that
Fire box temperature is not less than 1100 DEG C, so that uncombusted part in lime-ash is mended burning to after-flame, is discharged after thoroughly becoming inorganic salts；Simultaneously will
Dioxin gas in pernicious gas burns elimination in the second combustion chamber；
Step 4, the volume of smoke and pernicious gas that the second combustion chamber generates are burned by third combustion chamber, it is ensured that burner hearth
Temperature is not less than 1200 DEG C, the dioxin gas that thorough after-flame is escaped from the second combustion chamber；
Step 5 generates third combustion chamber pre- into the two groups of province's burners and air being arranged alternately without dioxin flue gas
Hot device makes the temperature of no dioxin flue gas be down to 120 DEG C~140 DEG C, subsequently into fiber bag precipitator；
Step 6 handles most flue dust in flue gas by fiber bag precipitator, and remainder gas enters absorption
In reaction tower, the gases such as sulfur-bearing, halogen in gas are absorbed reaction tower absorption, after distilling, form solid-state, last remaining
Gas reaches discharge standard, from smoke stack emission into natural environment.
After water-cooling wall in second combustion chamber and third combustion chamber is heated with water, it is collected to header tank from water-cooling wall, so
Enter hot water line afterwards, for producing and living.It saves in burner, water and flue gas from cooled water line carry out heat exchange, after being heated
Water enter hot water line, for producing and living.More heat exchangers are equipped with along hot water line line, for adjusting hot water temperature, with
Just it produces and lives and use.
In air preheater, makes air and flue gas from external environment carry out heat exchange by air blower, be heated
Needs of the air afterwards for the first combustion chamber, the second combustion chamber and three-barreled burner hearth First air and Secondary Air.
Second combustion chamber, fiber bag precipitator and the solid-state salt obtained after distilling pass through separating technology after air-cooled, set
In industrial salt, resource utilization is realized.
The chemical industry saliferous hazardous waste harmless resource processing method of the present embodiment completely eliminates in discharge gas
VOCs and dioxin gas；The heat discharged in the solid-state salt and combustion process that the present invention generates simultaneously is effectively returned
It receives and utilizes, so that chemical industry saliferous hazardous waste obtains innoxious, the processing of recycling.General pesticide producing enterprise year at present
For saliferous hazardous waste at 10000 tons or so, which allows qualified business processes at present, needs 4000 yuan/ton of handling
With, and the cost for using the chemical industry saliferous hazardous waste harmless resource processing method of the present embodiment to be handled is lower than 1000
Yuan/ton.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. chemical industry saliferous hazardous waste harmless resource processing method, it is characterised in that: the following steps are included:
Hazardous waste is transferred to hazardous waste cluster from each production unit, and fine grained powdery is made by step 1；
Fine grained powdery hazardous waste is sent into the first combustion chamber by conveying device, and ensures VOCs gas after-flame by step 2；
Step 3, the lime-ash and other pernicious gases that the first combustion chamber generates are burned by the second combustion chamber, are made in lime-ash
Uncombusted part, which is mended, burns to after-flame, is discharged after thoroughly becoming inorganic salts；Simultaneously by the dioxin gas in pernicious gas second
It burns and eliminates in combustion chamber；
Step 4, the volume of smoke and pernicious gas that the second combustion chamber generates are burned by third combustion chamber, and thorough after-flame is from the
The dioxin gas of two combustion chambers escape；
Step 5, make the generation of third combustion chamber enters two groups of province's burners being arranged alternately and air preheat without dioxin flue gas
Device cools down to no dioxin flue gas, subsequently into fiber bag precipitator；
Step 6 handles most flue dust in flue gas by fiber bag precipitator, and remainder gas enters absorbing reaction
In tower, the gases such as sulfur-bearing, halogen in gas are absorbed reaction tower absorption, after distilling, form solid-state, last remaining gas
Reach discharge standard, from smoke stack emission into natural environment.
2. chemical industry saliferous hazardous waste harmless resource processing method according to claim 1, it is characterised in that: described
The fire box temperature of one combustion chamber is 800 DEG C~900 DEG C.
3. chemical industry saliferous hazardous waste harmless resource processing method according to claim 1, it is characterised in that: described
The fire box temperature of two combustion chambers is not less than 1100 DEG C.
4. chemical industry saliferous hazardous waste harmless resource processing method according to claim 1, it is characterised in that: described
Three-barreled fire box temperature is not less than 1200 DEG C.
5. chemical industry saliferous hazardous waste harmless resource processing method according to claim 1, it is characterised in that: the step
The temperature of no dioxin flue gas is down to 120 DEG C~140 DEG C by the two groups of province's burners and air preheater being arranged alternately in rapid five.
6. chemical industry saliferous hazardous waste harmless resource processing method according to claim 1, it is characterised in that: described
After water-cooling wall in two combustion chambers and third combustion chamber is heated with water, it is collected to header tank from water-cooling wall, subsequently into hot water
Line, for producing and living.
7. chemical industry saliferous hazardous waste harmless resource processing method according to claim 6, it is characterised in that: the step
In province's burner in rapid five, water and flue gas from cooled water line carry out heat exchange, and the water after being heated enters hot water line, for giving birth to
It produces and lives.
8. chemical industry saliferous hazardous waste harmless resource processing method according to claim 6, it is characterised in that: the heat
More heat exchangers are equipped with along waterline line, for adjusting hot water temperature, so as to the use that produces and live.
9. chemical industry saliferous hazardous waste harmless resource processing method according to claim 1, it is characterised in that: the step
In air preheater in rapid five, makes air and flue gas from external environment carry out heat exchange by air blower, be heated
Needs of the air afterwards for the first combustion chamber, the second combustion chamber and three-barreled burner hearth First air and Secondary Air.
10. chemical industry saliferous hazardous waste harmless resource processing method according to claim 1, it is characterised in that: described
Second combustion chamber, fiber bag precipitator and the solid-state salt obtained after distilling pass through separating technology after air-cooled, are placed in industrial
Salt realizes resource utilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283418.0A CN109990297A (en) | 2019-04-10 | 2019-04-10 | Chemical industry saliferous hazardous waste harmless resource processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283418.0A CN109990297A (en) | 2019-04-10 | 2019-04-10 | Chemical industry saliferous hazardous waste harmless resource processing method |
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| Publication Number | Publication Date |
|---|---|
| CN109990297A true CN109990297A (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910283418.0A Pending CN109990297A (en) | 2019-04-10 | 2019-04-10 | Chemical industry saliferous hazardous waste harmless resource processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076180A (en) * | 2019-12-27 | 2020-04-28 | 沈阳化工大学 | High-low temperature variable gas speed waste incineration system and method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07324715A (en) * | 1994-04-04 | 1995-12-12 | Masanori Ohashi | Incinerator |
| CN2260243Y (en) * | 1996-01-26 | 1997-08-20 | 张忠贤 | Incineration furnace for dangerour and urban garbage |
| CN2837692Y (en) * | 2005-11-17 | 2006-11-15 | 王永昌 | Domestic refuse incinerator |
| CN107143860A (en) * | 2017-07-12 | 2017-09-08 | 江苏朗誉环保设备有限公司 | Rotary kiln incineration system |
| CN107166397A (en) * | 2017-07-04 | 2017-09-15 | 大连海伊特重工股份有限公司 | A kind of saliferous waste treatment equipment and method |
-
2019
- 2019-04-10 CN CN201910283418.0A patent/CN109990297A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07324715A (en) * | 1994-04-04 | 1995-12-12 | Masanori Ohashi | Incinerator |
| CN2260243Y (en) * | 1996-01-26 | 1997-08-20 | 张忠贤 | Incineration furnace for dangerour and urban garbage |
| CN2837692Y (en) * | 2005-11-17 | 2006-11-15 | 王永昌 | Domestic refuse incinerator |
| CN107166397A (en) * | 2017-07-04 | 2017-09-15 | 大连海伊特重工股份有限公司 | A kind of saliferous waste treatment equipment and method |
| CN107143860A (en) * | 2017-07-12 | 2017-09-08 | 江苏朗誉环保设备有限公司 | Rotary kiln incineration system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076180A (en) * | 2019-12-27 | 2020-04-28 | 沈阳化工大学 | High-low temperature variable gas speed waste incineration system and method thereof |
| CN111076180B (en) * | 2019-12-27 | 2022-03-04 | 沈阳化工大学 | High-low temperature variable gas speed waste incineration system and method thereof |
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Application publication date: 20190709 |
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