CN209569741U - A kind of system that chemical emission is administered - Google Patents
A kind of system that chemical emission is administered Download PDFInfo
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- CN209569741U CN209569741U CN201920172534.0U CN201920172534U CN209569741U CN 209569741 U CN209569741 U CN 209569741U CN 201920172534 U CN201920172534 U CN 201920172534U CN 209569741 U CN209569741 U CN 209569741U
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- exhaust gas
- caustic wash
- gas
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- wash tower
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses the systems that a kind of chemical emission is administered, it is characterized in that, the system comprises level-one caustic wash towers, second level caustic wash tower, wherein the level-one caustic wash tower is connect by pipeline with second level caustic wash tower, the second level caustic wash tower is connect with nitrogen tube, the second level caustic wash tower is connect by pipeline with exhaust gas mixing pit, LEL fuel gas on-line computing model is provided on the outlet conduit of the exhaust gas mixing pit, the exhaust gas mixing pit is connected to the filter, the filter is connect with fire arrester, the fire arrester is connect with heat accumulating burner, the heat accumulating burner is connect by pipeline with alkaline cleaner；Mix waste gas total amount after air is added in the exhaust gas mixing pit is 11000m3/h, and the organic gas total concentration in the mix waste gas is lower than the 30% of mix waste gas body lower explosion limit；The utility model thoroughly solves propylene oxide chlorohydrination tail gas and trichloro ethylene workshop tail gas discharge bring environmental issue, and the heat recycled, creates benefit.
Description
Technical field
The utility model relates to the regenerative combustion technology fields of organic gas, and in particular to what a kind of chemical emission was administered
System.
Background technique
The chlorohydrination tail gas that country's propylene oxide chlorohydrination method production technology generates at present is using the method being vented.Emptying group
Divide predominantly ethylene, ethane, propylene, propane, dichloropropane etc., does not meet environmental requirement.
Trichloro ethylene device exhaust gas constituents are complicated, and halogenated hydrocarbon content is high, and contains non-methane total hydrocarbons, with catalysis oxidation and
When direct combustion method processing, equipment investment is high, directly burning when not only consume fuel cost height, but also be easy to produce dioxin and
Nitrogen oxides forms secondary pollution, meanwhile, the HCL low-temperature corrosion problem for generation of burning is difficult to solve.
Summary of the invention
To achieve the goals above, the utility model provides the following technical solutions:
The purpose of this utility model is to provide the systems that a kind of chemical emission is administered, and thoroughly solve propylene oxide chloropharin
Change tail gas and trichloro ethylene workshop tail gas discharges bring environmental issue, and the heat recycled, creates benefit.
The system that a kind of chemical emission is administered, which is characterized in that the system comprises level-one caustic wash tower, second level caustic wash tower,
Wherein the level-one caustic wash tower is connect by pipeline with second level caustic wash tower, and the second level caustic wash tower is connect with nitrogen tube, and described two
Grade caustic wash tower is connect by pipeline with exhaust gas mixing pit, is provided with LEL fuel gas on the outlet conduit of the exhaust gas mixing pit
On-line computing model, the exhaust gas mixing pit are connected to the filter, and the filter is connect with fire arrester, the fire arrester and accumulation of heat
The connection of formula burner, the heat accumulating burner are connect by pipeline with alkaline cleaner；It is added in the exhaust gas mixing pit
Mix waste gas total amount after air is 11000m3/h, and the organic gas total concentration in the mix waste gas is lower than mix waste gas body
The 30% of lower explosion limit.
Optionally, the heat accumulating burner is three bed, and when normal operation, three beds are respectively at heating by the exhaust gases rank
Section, flue gas stage regenerator and purging wash phase；Exhaust gas enters oxidizing chamber burning after flowing through regenerative chamber A heating, becomes purification
Oxidizing chamber is left after high-temperature gas, into regenerative chamber B, is discharged heat, is discharged after cooling, and after regenerative chamber B absorbs amount of heat
Heating is used for next circulating-heating exhaust gas；Gas leaves regenerative chamber B after the exhaust-gas treatment, is discharged into atmosphere through air-introduced machine.
Optionally, after the completion of the waste gas circulation, air inlet is once switched with outlet valve, into next circulation,
Exhaust gas is entered by the regenerative chamber B, the regenerative chamber A discharge；Before handover, cleaned gas through blowback room clean institute
Regenerative chamber A purging is stated to remain in pipeline and interior and have organic matter.
Optionally, the heat accumulating burner controls the switching of Pneumatic program control valve by PLC, divides exhaust gas periodically
It does not carry out into 3 ceramic heat-storing beds, temperature control reaches at 760 DEG C or more when entering combustion chamber by the energy storage bed exhaust gas
Ignition temperature.
Optionally, in the oxidizing chamber, organic exhaust gas ignition temperature is set, is mended again by burner when exhaust gas concentration is lower
Combustion, is heated to the oxidizing temperature of setting.
Optionally, the heat accumulating burner further includes processing unit, set temperature detection member in the processing unit
Part, fan pressure detection, furnace pressure control device, furnace body, as flame-proof thermal insulation material, guarantee to set using high alumina ceramic fiber
Standby normal safe operation.
Optionally, the inlet, outlet valve of the burner is all made of 2507 material of two phase stainless steel, the burner
Pipeline use two phase stainless steel inside lining anti-corrosive coating.
Optionally, the level-one caustic wash tower, second level caustic wash tower are the caustic wash tower of glass inner-lining scale.
The utility model has the beneficial effects that:
1, the environment protection standard discharge of two covering devices is realized.
2, the feature high using propylene oxide chlorohydrination tail gas calorific value, while trichloro ethylene house exhaust being burnt up, it saves
A large amount of fuel.
3, two covering device exhaust gas, which merge, administers, and saves the equipment investment of environmental protecting device.
4, recovery waste heat produces steam, and environmental protecting device is made to produce benefit.
5, burning waste gas is solved to the etching problem of equipment, pipeline.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The utility model can be limited.
Detailed description of the invention
Fig. 1 is the system diagram of the utility model.
Level-one caustic wash tower 1, second level caustic wash tower 2, fire arrester 3 in figure.
Specific embodiment
The following are the better embodiments of the utility model, but therefore do not limit the protection scope of the utility model.
A kind of system that chemical emission is administered, which is characterized in that the system comprises level-one caustic wash towers 1, second level caustic wash tower
2, wherein the level-one caustic wash tower 1 is connect by pipeline with second level caustic wash tower 2, the second level caustic wash tower 2 is connect with nitrogen tube, institute
It states second level caustic wash tower to connect by pipeline with exhaust gas mixing pit, it is flammable to be provided with LEL on the outlet conduit of the exhaust gas mixing pit
Gas on-line monitor, the exhaust gas mixing pit are connected to the filter, and the filter is connect with fire arrester, the fire arrester with
Heat accumulating burner connection, the heat accumulating burner are connect by pipeline with alkaline cleaner；In the exhaust gas mixing pit
Mix waste gas total amount after air is added is 11000m3/h, and the organic gas total concentration in the mix waste gas is useless lower than mixing
The 30% of gas burst lower limit.
The mixed gas enters heat accumulating burner and burns, and heat accumulating burner is three bed, normal to transport
When row, three beds are respectively at heating by the exhaust gases stage, flue gas stage regenerator and purging wash phase.Exhaust gas flows through regenerative chamber A liter
Enter oxidizing chamber after temperature to burn, oxidizing chamber is left after becoming the high-temperature gas of purification, into regenerative chamber B (in circulation in front
It has been cooled), heat is discharged, is discharged after cooling, and heating (is used for next circulating-heating after regenerative chamber B absorbs amount of heat
Exhaust gas).Gas leaves regenerative chamber B after processing, is discharged into atmosphere through air-introduced machine.Delivery temperature is higher than intake air temperature about under normal circumstances
30~50 DEG C or so.After the completion of circulation, air inlet is once switched with outlet valve, and into next circulation, exhaust gas is by accumulation of heat
Room B enters, regenerative chamber A discharge.Before handover, cleaned gas through blowback room clean regenerative chamber A purging remain in pipe
There are organic matter in road and interior.The purifying rate of exhaust gas can be made higher in this way, so alternately.Cutting for Pneumatic program control valve is controlled by PLC
It changes, carries out exhaust gas periodically respectively into 3 ceramic heat-storing beds, temperature control exists when entering combustion chamber by energy storage bed exhaust gas
770 DEG C or more, reach ignition temperature, when normal operation, does not need additionally to supplement fuel, make exhaust gas it is continual and steady reach processing
Operating cost is reduced while effect.In oxidizing chamber, set organic exhaust gas ignition temperature, when exhaust gas concentration is lower again by
Burner afterburning is heated to the oxidizing temperature of setting.Set temperature detecting element in processing unit, fan pressure detection,
The devices such as furnace pressure control, furnace body, as flame-proof thermal insulation material, guarantee equipment normal safe operation using high alumina ceramic fiber.
The burner come out flue gas after regenerative chamber heat release, temperature is down to 45 DEG C or so, in exhaust gas containing H2O,
The gases such as CO2, HCL, gas attack is stronger under this operating condition, and burner inlet, outlet valve is all made of two-phase in the design
2507 material of stainless steel, pipeline use two phase stainless steel inside lining anti-corrosive coating, and exhaust gas enters the level-one alkali cleaning of glass inner-lining scale
Chimney qualified discharge is discharged by being evacuated blower after tower, second level caustic wash tower.
Combustable gas concentration is 5150mg/m3 in the exhaust gas, and the heat generated after burning removes the heat that accumulation of heat needs
Outside device noumenon heat loss, there are also rich heat, this part high-temperature flue gas enters waste heat boiler and 0.75MPa steaming is made in pure water
Vapour is utilized.
For convenience of understanding, the treatment process that the utility model also provides for above-described embodiment 1 provides corresponding device and shows
It is intended to, as shown in Figure 1, being filled for propylene oxide chlorohydrination tail gas provided in this embodiment and trichloro ethylene house exhaust combined governance
It sets, including air inlet level-one, second level caustic wash tower, gas mixer, pressure fan, heat accumulating burner, outlet level-one, second level alkali cleaning
Tower, air-introduced machine, waste heat boiler.
The utility model has the beneficial effects that:
1, the environment protection standard discharge of two covering devices is realized.
2, the feature high using propylene oxide chlorohydrination tail gas calorific value, while trichloro ethylene house exhaust being burnt up, it saves
A large amount of fuel.
3, two covering device exhaust gas, which merge, administers, and saves the equipment investment of environmental protecting device.
4, recovery waste heat produces steam, and environmental protecting device is made to produce benefit.
5, burning waste gas is solved to the etching problem of equipment, pipeline.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The utility model can be limited.
Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art
Member for, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (8)
1. the system that a kind of chemical emission is administered, which is characterized in that the system comprises level-one caustic wash tower, second level caustic wash tower,
Described in level-one caustic wash tower connect with second level caustic wash tower by pipeline, the second level caustic wash tower is connect with nitrogen tube, the second level
Caustic wash tower is connect by pipeline with exhaust gas mixing pit, is provided with LEL fuel gas on the outlet conduit of the exhaust gas mixing pit and is existed
Line monitor, the exhaust gas mixing pit are connected to the filter, and the filter is connect with fire arrester, the fire arrester and heat accumulating type
Burner connection, the heat accumulating burner are connect by pipeline with alkaline cleaner；It is added in the exhaust gas mixing pit empty
Mix waste gas total amount after gas is 11000m3/h, and the organic gas total concentration in the mix waste gas is quick-fried lower than mix waste gas body
The 30% of fried lower limit.
2. the system that a kind of chemical emission according to claim 1 is administered, it is characterised in that: the heat accumulating burner
For three bed, when normal operation, three beds are respectively at heating by the exhaust gases stage, flue gas stage regenerator and purging wash phase；It is useless
Air-flow enters oxidizing chamber after regenerative chamber A heating and burns, and leaves oxidizing chamber after becoming the high-temperature gas of purification, into regenerative chamber B,
Heat is discharged, is discharged after cooling, and regenerative chamber B heats up after absorbing amount of heat, is used for next circulating-heating exhaust gas；It is described useless
Gas leaves regenerative chamber B after gas disposal, is discharged into atmosphere through air-introduced machine.
3. the system that a kind of chemical emission according to claim 2 is administered, it is characterised in that: the waste gas circulation is completed
Afterwards, air inlet is once switched with outlet valve, and into next circulation, exhaust gas is entered by the regenerative chamber B, the regenerative chamber
A discharge；Before handover, cleaned gas through blowback room cleans regenerative chamber A purging and remains in pipeline and interior and has
Organic matter.
4. the system that a kind of chemical emission according to claim 3 is administered, it is characterised in that: the heat accumulating burner
The switching that Pneumatic program control valve is controlled by PLC, carries out exhaust gas periodically respectively into 3 ceramic heat-storing beds, by the storage
Temperature control reaches ignition temperature at 760 DEG C or more when hott bed exhaust gas enters combustion chamber.
5. the system that a kind of chemical emission according to claim 4 is administered, it is characterised in that: in the oxidizing chamber, setting
Organic exhaust gas ignition temperature, when exhaust gas concentration is lower is heated to the oxidizing temperature of setting by burner afterburning again.
6. the system that a kind of chemical emission according to claim 5 is administered, it is characterised in that: the heat accumulating burner
It further include processing unit, set temperature detecting element, fan pressure detection, furnace pressure control device in the processing unit,
Furnace body, as flame-proof thermal insulation material, guarantees equipment normal safe operation using high alumina ceramic fiber.
7. the system that a kind of chemical emission according to claim 1 is administered, it is characterised in that: the burner into,
Outlet valve is all made of 2507 material of two phase stainless steel, and the pipeline of the burner is applied using two phase stainless steel inside lining anti-corrosive
Material.
8. the system that a kind of chemical emission according to claim 1 is administered, it is characterised in that: the level-one caustic wash tower,
Second level caustic wash tower is the caustic wash tower of glass inner-lining scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172534.0U CN209569741U (en) | 2019-01-31 | 2019-01-31 | A kind of system that chemical emission is administered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172534.0U CN209569741U (en) | 2019-01-31 | 2019-01-31 | A kind of system that chemical emission is administered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569741U true CN209569741U (en) | 2019-11-01 |
Family
ID=68334412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920172534.0U Active CN209569741U (en) | 2019-01-31 | 2019-01-31 | A kind of system that chemical emission is administered |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569741U (en) |
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2019
- 2019-01-31 CN CN201920172534.0U patent/CN209569741U/en active Active
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