CN111121064A - Waste liquid oxygen-enriched incineration device - Google Patents
Waste liquid oxygen-enriched incineration device Download PDFInfo
- Publication number
- CN111121064A CN111121064A CN202010038868.6A CN202010038868A CN111121064A CN 111121064 A CN111121064 A CN 111121064A CN 202010038868 A CN202010038868 A CN 202010038868A CN 111121064 A CN111121064 A CN 111121064A
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- China
- Prior art keywords
- oxygen
- waste liquid
- lance
- air channel
- primary air
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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
- 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
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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
- F23G5/50—Control or safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/04—Regulating fuel supply conjointly with air supply and with draught
- F23N1/047—Regulating fuel supply conjointly with air supply and with draught using mechanical means
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention belongs to the field of waste liquid incineration treatment, and relates to a waste liquid oxygen-enriched incineration device, which comprises an incinerator and a burner which are mutually communicated, wherein the burner is provided with a primary air channel, a secondary air channel, an oxygen lance and a waste liquid lance; the primary air channel is arranged around the axis of the burner, and the secondary air channel is arranged outside the primary air channel; the oxygen lance and the waste liquid lance are arranged in the primary air channel; an oxygen regulating valve is arranged on the oxygen lance. The invention can operate in two modes of oxygen enrichment and conventional combustion, when the heat value of the coal gas changes, the requirement of the heating process temperature can be met by adjusting the concentration of the enriched oxygen, and the flame characteristic can be controlled by adjusting the proportion of primary air and secondary air. Through implementing the oxygen-enriched combustion on the waste liquid incinerator, the incinerator can meet the requirements of waste liquid incineration with different heat values more flexibly, the extra energy consumption is effectively reduced, the smoke gas amount is greatly reduced, the smoke gas post-treatment cost is reduced, and the energy conservation and emission reduction are realized.
Description
Technical Field
The invention belongs to the field of waste liquid incineration treatment, and relates to a waste liquid oxygen-enriched incineration device.
Background
With the increasing strictness of the environmental protection requirement, the treatment of the hazardous waste is closer to the harmlessness and the reduction, and the high-temperature incineration becomes one of the effective solutions. The waste liquid is one of the main compositions of the dangerous waste, and has the characteristics of complex composition, large heat value range, large incineration energy consumption and the like, the conventional air combustion-supporting combustion mode is mainly adopted for waste liquid incineration at present, and when the heat value of the waste liquid is too low, the temperature of the incinerator is ensured by a diesel oil afterburning mode, so that on one hand, the energy consumption is increased, on the other hand, the smoke gas amount is increased, and the cost of the post-treatment of the smoke gas after the incinerator is increased.
Disclosure of Invention
In view of this, the invention aims to provide a waste liquid oxygen-enriched incineration device, which makes full use of the advantages of high oxygen-enriched combustion temperature, high efficiency and small smoke amount, and can effectively reduce the energy consumption of an incinerator, improve the operation flexibility of the incinerator and reduce the post-treatment cost of smoke.
In order to achieve the purpose, the invention provides the following technical scheme:
an oxygen-enriched waste liquid incineration device comprises an incinerator and a burner which are communicated with each other, wherein a primary air channel, a secondary air channel, an oxygen lance and a waste liquid lance are arranged on the burner; the primary air channel is arranged around the axis of the burner, and the secondary air channel is arranged outside the primary air channel; the oxygen lance and the waste liquid lance are arranged in the primary air channel; an oxygen regulating valve is arranged on the oxygen lance.
Optionally, the waste lance is disposed on the burner axis.
Optionally, a cooling compressed air channel is arranged on the oxygen lance and communicated with compressed air for supplying compressed air to cool and protect the oxygen lance when oxygen is cut off.
Optionally, a compressed air regulating valve is arranged on the compressed air channel, and the compressed air channel is communicated to the waste liquid gun.
Optionally, the lance is provided with a plurality of legs.
Optionally, the oxygen lance forms an included angle of 0-20 degrees with the axis of the burner.
Optionally, a temperature detection device is arranged on one side of the incinerator facing the combustor, and when the heat value of the waste liquid fluctuates, the control system calculates the required oxygen-enriched concentration according to the heat value of the waste liquid and the temperature of the incinerator, and controls the flow of oxygen to ensure that the temperature of the incinerator meets the process requirements.
Optionally, a primary air regulating valve and a primary air flow meter are arranged on the primary air channel; and the secondary air channel is provided with a secondary air regulating valve and a secondary air flow meter and is used for regulating the proportion of primary air and secondary air, the regulating range of the primary air is 0-100% of the total air required by combustion, and the regulating range of the secondary air is 0-100% of the total air required by combustion.
Optionally, the waste liquid gun is provided with a waste liquid heat value instrument, a waste liquid flowmeter and a waste liquid regulating valve.
Optionally, an oxygen flow meter is arranged on the oxygen lance.
The invention has the beneficial effects that:
1. the invention can make the incinerator meet the waste liquid incineration requirements of different heat values more flexibly by implementing oxygen-enriched combustion on the waste liquid incinerator, effectively reduce extra energy consumption, and greatly reduce the amount of flue gas, thereby reducing the post-treatment cost of the flue gas.
2. The invention can effectively control the temperature of the furnace end, the temperature of flame and a local high-temperature area by adjusting the oxygen-enriched concentration and the proportion of primary air and secondary air, and increases the regulation and control means of the whole incinerator system.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of an apparatus of the present invention;
fig. 2 is a schematic structural view of the preferred embodiment.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the reference numbers in the figures refer to the following elements: the incinerator 1, the burner 2, the oxygen lance 21, the oxygen lance cooling compressed air interface 22, the waste liquid lance 23, the primary air channel 24, the secondary air channel 25, the secondary air outlet 26, the primary air outlet 27, the fire detector 28, the oxygen pipeline 3, the oxygen regulating valve 31, the oxygen flow meter 32, the waste liquid pipeline 4, the waste liquid heat value meter 41, the waste liquid flow meter 42, the waste liquid regulating valve 43, the compressed air pipeline 5, the compressed air regulating valve 51, the primary air pipeline 6, the primary air flow meter 61, the primary air regulating valve 62, the secondary air pipeline 7, the secondary air flow meter 71, the secondary air regulating valve 72 and the temperature detection device 8.
The invention relates to a waste liquid oxygen-enriched incineration device, which comprises an incinerator 1 and a combustor 2 which are communicated with each other, wherein a primary air channel 24, a secondary air channel 25, an oxygen lance 21 and a waste liquid lance 23 are arranged on the combustor 2; the primary air passage 24 is circumferentially arranged along the axis of the burner 2, and the secondary air passage 25 is arranged outside the primary air passage 24; the oxygen lance 21 and the waste liquid lance 23 are arranged in a primary air channel 24; the oxygen lance 21 is provided with an oxygen regulating valve 31.
Optionally, the waste lance 23 is arranged on the axis of the burner 2; the oxygen lance 21 is provided with a cooling compressed air channel which is communicated with compressed air and used for supplying the compressed air to cool and protect the oxygen lance 21 when oxygen is cut off; a compressed air regulating valve 51 is arranged on the compressed air channel, and the compressed air channel is communicated to the waste liquid gun 23; the oxygen lance 21 is provided with a plurality of oxygen lances; the oxygen lance 21 and the axis of the burner 2 form an included angle of 0-20 degrees; a temperature detection device 8 is arranged on one side of the incinerator 1 facing the combustor 2, when the heat value of the waste liquid fluctuates, the control system calculates the required oxygen-enriched concentration according to the heat value of the waste liquid and the temperature of the incinerator, and controls the flow of oxygen to ensure that the temperature of the incinerator 1 meets the technological requirements.
Optionally, a primary air regulating valve 62 and a primary air flow meter 61 are arranged on the primary air channel 24; the secondary air channel 25 is provided with a secondary air regulating valve 72 and a secondary air flow meter 71 for regulating the proportion of primary air and secondary air, the regulating range of the primary air is 0-100% of the total air required by combustion, and the regulating range of the secondary air is 0-100% of the total air required by combustion; the waste liquid gun 23 is provided with a waste liquid heat value instrument 41, a waste liquid flowmeter 42 and a waste liquid regulating valve 43; the oxygen lance 21 is provided with an oxygen flowmeter 32.
The combustor 2 is arranged on a furnace end of the incinerator 1, a primary air channel 24, a secondary air channel 25, an oxygen lance 21 and a waste liquid lance 23 are arranged on the combustor 2 and are respectively connected with a primary air pipeline 6, a secondary air pipeline 7, an oxygen pipeline 3 and a waste liquid pipeline 4, the primary air channel 24 is arranged in a surrounding mode along the axis of the combustor 2, and a primary air outlet 27 is formed in the end portion of the primary air channel; the secondary air channel 25 is positioned on the outer ring of the primary air channel 24, the end part of the secondary air channel is provided with a secondary air outlet 26, the oxygen lance 21 and the waste liquid lance 23 are positioned in the primary air channel 24, the waste liquid lance 23 is positioned on the axis of the burner 2, and the oxygen lance 21 is positioned outside the waste liquid lance 23. Each combustor 2 can be provided with 1, 2 or a plurality of oxygen lances 21, the oxygen lances 21 are positioned outside the waste liquid lance 23 and in the primary air passage 24, the included angle between the oxygen lances 21 and the axis of the combustor 1 is 0-20 degrees, and when 2 or a plurality of oxygen lances 21 are arranged, the oxygen lances are uniformly arranged along the circumferential direction of the axis of the combustor 2.
The incinerator 1 can operate in two modes of oxygen enrichment and conventional combustion, oxygen is introduced into the oxygen lance 21 during oxygen enrichment combustion, oxygen is cut off by the oxygen lance 21 during conventional combustion, and the comprehensive excess oxygen coefficient of the oxygen amount and the air amount is larger than 1.0.
Alternatively, the burner 2 may have an oxygen enrichment in the range of 21% to 100%, i.e. 21% for conventional combustion, and in the limit the burner may be operated under pure oxygen combustion with an oxygen enrichment of 100%.
Optionally, a cooling compressed air channel 22 is arranged on the oxygen lance 21 and is connected with the compressed air pipeline 5, when the oxygen pipeline 3 is cut off, the compressed air regulating valve 51 on the compressed air pipeline 5 is opened, and compressed air is supplied to cool and protect the oxygen lance 21.
Optionally, the compressed air line 5 is also connected to a waste liquid gun 23 for atomization of the waste liquid.
The waste liquid pipeline 4 is provided with a heat value instrument 41, and the furnace end of the incinerator 1 is provided with a temperature detection device 8. When the waste liquid heat value meter 41 detects that the heat value of the waste liquid is reduced, the temperature detection device 8 detects the furnace end temperature of the incinerator 1, when the furnace end temperature of the incinerator 1 is lower than the process set temperature, the control system calculates the oxygen-enriched concentration required by the process temperature of the incinerator according to the heat value of the waste liquid, then the oxygen regulating valve 31 is controlled to increase the oxygen-enriched concentration to the corresponding oxygen-enriched concentration to improve the incineration temperature so as to meet the process requirement, and meanwhile, the flame stability of low-heat-value waste liquid incineration is ensured; similarly, when the waste liquid calorific value rose, temperature-detecting device 8 detected the furnace end temperature of burning furnace 1, and when the furnace end temperature of burning furnace 1 was higher than technology settlement temperature, the accessible was adjusted oxygen regulating valve 31, and the reduction oxygen flow reaches corresponding oxygen-enriched concentration, reduces the burning temperature in order to satisfy the technological requirement, avoids the export high temperature of combustor 2 simultaneously and is burnt out.
Optionally, the primary air regulating valve 62, the secondary air regulating valve 72, the primary air flow meter 61 and the secondary air flow meter 71 are arranged on the primary air pipeline 6 and the secondary air pipeline 7, so that the proportion of the primary air and the secondary air can be regulated, the regulation range of the primary air amount is 0% -100% of the total air amount required by combustion, and the regulation range of the secondary air amount is 0% -100% of the total air amount required by combustion. When the waste liquid heat value instrument 41 detects that the heat value of the waste liquid is reduced, the primary air regulating valve 62 and the secondary air regulating valve 72 can be controlled according to the strength of the fire detection 28 signal of the burner 2, and the proportion of primary air quantity is properly increased so as to improve the stability of flame and meet the requirement of the intensity of the fire detection 28; when the heat value of the waste liquid is increased, the primary air regulating valve 62 and the secondary air regulating valve 72 are controlled to properly reduce the proportion of primary air so as to reduce the local high temperature of flame and meet the requirement of the strength of the fire detector 28.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. An oxygen-enriched waste liquid incineration device is characterized by comprising an incinerator and a burner which are communicated with each other, wherein the burner is provided with a primary air channel, a secondary air channel, an oxygen lance and a waste liquid lance; the primary air channel is arranged around the axis of the burner, and the secondary air channel is arranged outside the primary air channel; the oxygen lance and the waste liquid lance are arranged in the primary air channel; an oxygen regulating valve is arranged on the oxygen lance.
2. An apparatus for oxygen-rich incineration of waste liquid as claimed in claim 1, wherein the waste liquid lance is disposed on the burner axis.
3. The oxygen-enriched incineration apparatus for waste liquid as claimed in claim 1, wherein the oxygen lance is provided with a cooling compressed air passage connected with compressed air for supplying compressed air to cool and protect the oxygen lance when oxygen is cut off.
4. An oxygen-enriched incineration apparatus for waste liquid as claimed in claim 3, wherein said compressed air channel is provided with a compressed air regulating valve, and said compressed air channel is connected to the waste liquid gun.
5. The oxygen-enriched incineration apparatus for waste liquid as claimed in claim 1, wherein said oxygen lance is provided with a plurality of lances.
6. The oxygen-enriched waste liquid incineration device as claimed in claim 1 or 5, wherein the oxygen lance forms an angle of 0-20 ° with the axis of the burner.
7. An oxygen-enriched incineration apparatus for waste liquid as claimed in claim 1, wherein the incinerator is provided with a temperature detector on the side facing the burner, and when the calorific value of the waste liquid fluctuates, the control system calculates the required oxygen-enriched concentration according to the calorific value of the waste liquid and the temperature of the incinerator, and controls the oxygen flow rate to ensure that the incinerator temperature meets the process requirements.
8. The oxygen-enriched incineration apparatus for waste liquid according to claim 1 or 7, wherein the primary air channel is provided with a primary air regulating valve and a primary air flow meter; and the secondary air channel is provided with a secondary air regulating valve and a secondary air flow meter and is used for regulating the proportion of primary air and secondary air, the regulating range of the primary air is 0-100% of the total air required by combustion, and the regulating range of the secondary air is 0-100% of the total air required by combustion.
9. An oxygen-enriched incineration apparatus for waste liquid as claimed in claim 1, wherein said waste liquid lance is provided with a waste liquid heat value meter, a waste liquid flow meter, and a waste liquid regulating valve.
10. The apparatus for oxygen-rich incineration of waste liquid according to claim 1, wherein an oxygen flow meter is provided on the oxygen lance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038868.6A CN111121064A (en) | 2020-01-14 | 2020-01-14 | Waste liquid oxygen-enriched incineration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038868.6A CN111121064A (en) | 2020-01-14 | 2020-01-14 | Waste liquid oxygen-enriched incineration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111121064A true CN111121064A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010038868.6A Pending CN111121064A (en) | 2020-01-14 | 2020-01-14 | Waste liquid oxygen-enriched incineration device |
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| CN (1) | CN111121064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557877A (en) * | 2023-07-09 | 2023-08-08 | 浙江百能科技有限公司 | Oxygen-enriched incineration and heat recovery system for PTA waste residue liquid |
-
2020
- 2020-01-14 CN CN202010038868.6A patent/CN111121064A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557877A (en) * | 2023-07-09 | 2023-08-08 | 浙江百能科技有限公司 | Oxygen-enriched incineration and heat recovery system for PTA waste residue liquid |
| CN116557877B (en) * | 2023-07-09 | 2023-10-24 | 浙江百能科技有限公司 | Oxygen-enriched incineration and heat recovery system for PTA waste residue liquid |
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