CN218095948U - Hazardous waste burns system - Google Patents
Hazardous waste burns system Download PDFInfo
- Publication number
- CN218095948U CN218095948U CN202221281078.1U CN202221281078U CN218095948U CN 218095948 U CN218095948 U CN 218095948U CN 202221281078 U CN202221281078 U CN 202221281078U CN 218095948 U CN218095948 U CN 218095948U
- Authority
- CN
- China
- Prior art keywords
- subsystem
- circulating water
- air inlet
- combustion chamber
- enters
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Incineration Of Waste (AREA)
Abstract
The utility model discloses a hazardous waste's system of burning, include: the system comprises an absorption heat pump, a circulation subsystem, an air inlet subsystem and a power generation subsystem. The circulation subsystem provides high-temperature circulating water for the air inlet subsystem and provides low-temperature circulating water for the power generation subsystem. The high-temperature circulating water is generated by the absorption heat pump and enters the air inlet subsystem to provide heat for the air inlet subsystem. The low-temperature circulating water is generated by the absorption heat pump and enters the power generation subsystem so as to provide cold energy for the power generation subsystem. The utility model discloses the burning of primary air and overgrate air in with stable system is heated to the waste heat of the system of burning that can make full use of hazardous waste, and the gas of second combustion chamber can be regarded as to the material hole foul smell through the heating simultaneously, has reduced the use amount of natural gas, has improved the energy utilization of system and has reduced the carbon and discharge.
Description
Technical Field
The utility model relates to a hazardous waste handles the field, particularly, is a hazardous waste's system of burning.
Background
With the release of the carbon peak-reaching action scheme 2030, the economic development mode of green and low carbon increasingly becomes the mainstream of the world nowadays, wherein the treatment of hazardous waste is also one of the important ways to achieve the goal of green 'double carbon'. At present, hazardous waste is mainly treated by a burning mode, an air inlet system of the burning process of the hazardous waste is divided into primary air and secondary air, and the air inlet mode is divided into active air inlet and passive air inlet. The primary air and secondary air inlet systems of common hazardous waste treatment plants adopt a normal-temperature unheated process, the inlet air temperature is low in winter, the primary air and the secondary air entering the rotary kiln and the secondary combustion chamber can reduce the burning temperature in the burning furnace, stable burning is influenced, the outlet temperature of the secondary combustion chamber can be reduced, great energy waste exists, and material pit odor is directly subjected to reaction treatment through a wet deodorization device, so that the early investment cost is high, the occupied area is large, and great resource waste exists.
Therefore, there is a need for a new hazardous waste incineration system to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
To the deficiency of the prior art, the utility model provides a hazardous waste's system of burning, include: the system comprises an absorption heat pump, a circulation subsystem, an air inlet subsystem and a power generation subsystem; the circulating subsystem provides high-temperature circulating water for the air inlet subsystem and provides low-temperature circulating water for the power generation subsystem; the high-temperature circulating water is generated by the absorption heat pump and enters the air inlet subsystem so as to provide heat for the air inlet subsystem; the low-temperature circulating water is generated by the absorption heat pump and enters the power generation subsystem so as to provide cold energy for the power generation subsystem.
Illustratively, the system for incinerating hazardous waste further comprises: a reverse-flow rotary kiln, a secondary combustion chamber and a waste heat boiler; the counter-flow rotary kiln is used for pyrolyzing hazardous wastes and generating flue gas, and the flue gas is discharged from the counter-flow rotary kiln and enters the secondary combustion chamber; the secondary combustion chamber is used for further burning unburnt substances in the flue gas discharged from the counter-flow rotary kiln, the flue gas is discharged from the secondary combustion chamber and enters the waste heat boiler, and the temperature of the flue gas at the outlet of the secondary combustion chamber is more than or equal to 1100 ℃; the waste heat boiler is used for heating water working medium by using the waste heat of the smoke discharged by the secondary combustion chamber to generate steam, and the steam is discharged from the waste heat boiler and enters the power generation subsystem.
Illustratively, the power generation subsystem includes: a steam turbine, a generator, a condenser and a condensate pump; the steam enters the steam turbine to drive the generator to generate power, the steam is discharged from the steam turbine and then enters the condenser to generate condensed water, and the condensed water returns to the waste heat boiler through the condensed water pump.
Illustratively, the circulation subsystem includes: the mechanical cooling tower, the circulating water pump and the heat pump feed water pump; the mechanical cooling tower is used for further cooling the low-temperature circulating water, the circulating water pump is used for conveying the low-temperature circulating water to the condenser, and the heat pump water feed pump is used for conveying the low-temperature circulating water discharged by the condenser to the absorption heat pump.
Illustratively, the intake air subsystem includes: the first air inlet pipeline is used for conveying primary air into the counter-flow rotary kiln, and the primary air enters from the tail part of the counter-flow rotary kiln; the second air inlet pipeline is used for conveying secondary air into the secondary combustion chamber, and the secondary air enters from the upper part of the secondary combustion chamber; and the third air inlet pipeline is used for conveying the odor in the material pit into the secondary combustion chamber from the hazardous waste material pit, and the odor in the material pit enters from the upper part of the secondary combustion chamber.
Illustratively, the first air inlet pipeline comprises a primary air heat exchanger, the primary air heat exchanger is used for heating the primary air by using the high-temperature circulating water, and the temperature of the heated primary air is 60-80 ℃.
Illustratively, the second air inlet pipeline comprises a secondary air heat exchanger, the secondary air heat exchanger is used for heating the secondary air by using the high-temperature circulating water, and the temperature of the heated secondary air is 60-80 ℃.
Illustratively, the third air intake pipeline comprises a bunker odor heat exchanger for heating the bunker odor with the high-temperature circulating water.
Illustratively, the fuel gas used in the secondary combustion chamber includes the bunker odor and natural gas.
Illustratively, the system for incinerating hazardous waste further comprises a medical waste cooking subsystem coupled to the power generation subsystem, wherein the primary steam extraction of the steam turbine is used for cooking medical waste.
The utility model discloses can the low-grade heat energy among the make full use of hazardous waste handles heat the burning of primary air and overgrate air in with stable system to and cook medical waste, the gas of combustion chamber is two can be regarded as to the bin pit foul smell through the heating simultaneously, has reduced the use amount of natural gas, has improved the energy utilization of system, has reduced the carbon and has discharged.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.
In the drawings:
fig. 1 is a schematic structural diagram of the present invention, wherein:
1, a counter-current rotary kiln; 2, a second combustion chamber;
3, a waste heat boiler; 4, a steam turbine;
5, a generator; 6, a condenser;
7 circulating water pump; 8 machine force cooling tower;
9 absorption heat pump; 10 heat pump feed pump;
11 adjusting the valve; 12 a condensate pump;
13 dangerous waste material pit; 14 material pit odor heat exchanger;
15 primary air heat exchanger; 16 secondary air heat exchanger.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In order to thoroughly understand the present invention, a detailed structure will be provided in the following description in order to explain the technical solution provided by the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
The hazardous waste incineration system of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, in one embodiment, the present invention provides a hazardous waste incineration system, comprising: the system comprises a counter-flow rotary kiln 1, a secondary combustion chamber 2, a waste heat boiler 3, a power generation subsystem (such as a steam turbine 4, a generator 5, a condenser 6 and a condensate pump 12), a circulation subsystem (such as a circulating water pump 7, a mechanical cooling tower 8 and a heat pump feed water pump 10), an absorption heat pump 9 and an air intake subsystem (such as a bunker odor heat exchanger 14, a primary air heat exchanger 15 and a secondary air heat exchanger 16). The circulating subsystem provides high-temperature circulating water for the air inlet subsystem and provides low-temperature circulating water for the power generation subsystem; the high-temperature circulating water is generated by the absorption heat pump and enters the air inlet subsystem so as to provide heat for the air inlet subsystem; the low-temperature circulating water is generated by the absorption heat pump and enters the power generation subsystem so as to provide cold energy for the power generation subsystem.
With continued reference to fig. 1, in one embodiment, a counter-flow rotary kiln 1 is used for pyrolyzing hazardous waste and generating flue gas which exits the counter-flow rotary kiln 1 and enters the secondary combustion chamber 2; the secondary combustion chamber 2 is used for further burning unburnt substances in the flue gas discharged from the counter-flow rotary kiln 1, the flue gas is discharged from the secondary combustion chamber 2 and enters the waste heat boiler 3, and the temperature of the flue gas at the outlet of the secondary combustion chamber 2 is more than or equal to 1100 ℃; the waste heat boiler 3 is used for heating water working medium by using the waste heat of the flue gas discharged from the secondary combustion chamber 2 to generate steam, and the steam is discharged from the waste heat boiler 3 and enters the power generation subsystem.
With continued reference to FIG. 1, in one embodiment, the power generation subsystem includes: the system comprises a steam turbine 4, a generator 5, a condenser 6 and a condensate pump 12; the steam enters the steam turbine 4 to drive the generator 5 to generate power, the steam is discharged from the steam turbine 4 and then enters the condenser 6 to generate condensed water, and the condensed water returns to the waste heat boiler through the condensed water pump 12.
With continued reference to fig. 1, in one embodiment, the circulation subsystem includes: a mechanical cooling tower 8, a circulating water pump 7 and a heat pump feed pump 10; the mechanical cooling tower 8 is used for further cooling the low-temperature circulating water, the circulating water pump 7 is used for conveying the low-temperature circulating water to the condenser 6, and the heat pump water supply pump 10 is used for conveying the low-temperature circulating water discharged from the condenser 6 to the absorption heat pump 9.
With continued reference to FIG. 1, in one embodiment, the intake subsystem comprises: a first air inlet pipeline (not shown) for conveying primary air into the counter-flow rotary kiln 1, wherein the primary air enters from the tail part of the counter-flow rotary kiln 1; a second air intake line (not shown) for delivering secondary air into the secondary combustion chamber 2, the secondary air entering from the upper part of the secondary combustion chamber 2; a third air inlet line (not shown) for conveying pit odors from the hazardous waste pit 13 into the secondary combustion chamber 2, said pit odors entering from the upper portion of the secondary combustion chamber 2.
With continued reference to fig. 1, in one embodiment, the first air intake pipeline includes a primary air heat exchanger 15, the primary air heat exchanger 15 is configured to heat the primary air with the high-temperature circulating water, and the temperature of the heated primary air is 60-80 ℃; the second air inlet pipeline comprises a secondary air heat exchanger 16, the secondary air heat exchanger 16 is used for heating the secondary air by using the high-temperature circulating water, and the temperature of the heated secondary air is 60-80 ℃; the third air inlet pipeline comprises a material pit odor heat exchanger 14, and the material pit odor heat exchanger 14 is used for heating the material pit odor by using the high-temperature circulating water.
With continued reference to fig. 1, in one embodiment, the pit odor, primary air and secondary air generated from the hazardous waste pit 13 are heated by the pit odor heat exchanger 14, the primary air heat exchanger 15 and the secondary air heat exchanger 16, respectively. The heated material pit odor, primary air and secondary air enter the countercurrent rotary kiln 1 and the secondary combustion chamber 2 to participate in combustion, the heated primary air enters the countercurrent rotary kiln 1 from the tail part and participates in combustion, flue gas generated by pyrolysis combustion of hazardous wastes enters the secondary combustion chamber 2, the heated secondary air and the material pit odor are sprayed on the upper part of the secondary combustion chamber 2 and participate in combustion, and the heated material pit odor can be used as fuel gas to reduce the use amount of natural gas. The temperature of the flue gas at the outlet of the secondary combustion chamber 2 is 1100 ℃, the flue gas exchanges heat with water medium through the waste heat boiler 3, the flue gas after heat exchange enters a purification link, and the water medium after heat absorption generates steam and enters a power generation system.
With continued reference to fig. 1, in one embodiment, the steam enters a steam turbine 4 of the power generation subsystem to perform work, and a portion of the steam in the steam turbine 4 is converted into electric energy by a generator 5, and a portion of the steam is extracted to be used as steam for cooking medical waste. The residual steam after the work is done is condensed by the condenser 6 and then pumped back into the waste heat boiler 3 by the condensate pump 12 to be heated again.
With continued reference to fig. 1, in one embodiment, the absorption heat pump 9 absorbs the condensed water from the condenser 6 and discharges low-temperature circulating water and high-temperature circulating water, the low-temperature circulating water is further cooled by the mechanical cooling tower 8 and is delivered to the condenser 6 by the circulating water pump 7, the high-temperature circulating water exchanges heat with the bin odor, the primary air and the secondary air generated by the hazardous waste bin 13 through the bin odor heat exchanger 14, the primary air heat exchanger 15 and the secondary air heat exchanger 16, respectively, and the heated bin odor, the primary air and the secondary air enter the countercurrent rotary kiln 1 and the secondary combustion chamber 2, respectively, to be burned, as described above.
Based on the above description, the utility model discloses a hazardous waste's system of burning has following advantage at least:
1. the utility model adopts the absorption heat pump technology, utilizes the waste heat of the system to heat the primary air and the secondary air, can stably improve the air inlet temperature of the primary air and the secondary air to 60-80 ℃, and ensures the combustion temperature of the countercurrent rotary kiln and the secondary combustion chamber so as to reduce large temperature fluctuation;
2. the odor generated by the material pit of the hazardous waste can be directly used as fuel gas for heating without being treated by wet deodorization, and is used as supplementary fuel gas of a secondary combustion chamber for combustion, so that the supplementary combustion amount of natural gas is reduced;
3. the utility model discloses a steam turbine's among hazardous waste's the system of burning steam extraction is used for cooking medical discarded object, has reduced the cost of investment disinfecting equipment.
The utility model discloses can the waste heat of make full use of hazardous waste incineration system heat the burning of primary air and overgrate air in with stable system to and utilize the waste heat to cook medical discarded object, the gas of second combustion chamber can be regarded as to the material hole foul smell through the heating simultaneously, has reduced the use amount of natural gas, has improved the energy utilization of system, has improved the generating efficiency in coordination of hazardous waste processing factory, has reduced the carbon and has discharged.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that many variations and modifications may be made in accordance with the teachings of the present invention, all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A hazardous waste incineration system, comprising:
an absorption heat pump, a circulation subsystem, an air inlet subsystem and a power generation subsystem,
the circulating subsystem provides high-temperature circulating water for the air inlet subsystem and provides low-temperature circulating water for the power generation subsystem;
the high-temperature circulating water is generated by the absorption heat pump and enters the air inlet subsystem so as to provide heat for the air inlet subsystem;
the low-temperature circulating water is generated by the absorption heat pump and enters the power generation subsystem so as to provide cold energy for the power generation subsystem;
a counter-flow rotary kiln, a secondary combustion chamber, a waste heat boiler,
the counter-flow rotary kiln is used for pyrolyzing hazardous wastes and generating flue gas, and the flue gas is discharged from the counter-flow rotary kiln and enters the secondary combustion chamber;
the secondary combustion chamber is used for further burning out unburnt substances in the smoke discharged from the counter-flow rotary kiln, and the smoke is discharged from the secondary combustion chamber and enters the waste heat boiler;
the waste heat boiler is used for heating water working medium by using waste heat of the smoke discharged by the secondary combustion chamber to generate steam, and the steam is discharged from the waste heat boiler and enters the power generation subsystem;
the air inlet subsystem includes:
the first air inlet pipeline is used for conveying primary air into the counter-flow rotary kiln, the primary air enters from the tail of the counter-flow rotary kiln, and the first air inlet pipeline comprises a primary air heat exchanger which is used for heating the primary air by using the high-temperature circulating water;
the secondary air inlet pipeline is used for conveying secondary air into the secondary combustion chamber, the secondary air enters from the upper part of the secondary combustion chamber, the secondary air inlet pipeline comprises a secondary air heat exchanger, and the primary air heat exchanger is used for heating the primary air by using the high-temperature circulating water;
third air inlet pipeline, third air inlet pipeline is used for carrying the bin pit foul smell to the second combustion chamber from the hazardous waste bin pit in, and the bin pit foul smell is followed the upper portion entering of second combustion chamber, third air inlet pipeline includes bin pit foul smell heat exchanger, bin pit foul smell heat exchanger is used for utilizing high temperature circulating water heating bin pit foul smell.
2. The hazardous waste incineration system of claim 1, wherein the flue gas temperature at the outlet of the secondary combustion chamber is greater than or equal to 1100 ℃.
3. The hazardous waste incineration system of claim 1, wherein the power generation subsystem comprises: a steam turbine, a generator, a condenser and a condensate pump; the steam enters the steam turbine to drive the generator to generate power, the steam is discharged from the steam turbine and then enters the condenser to generate condensed water, and the condensed water returns to the waste heat boiler through the condensed water pump.
4. The hazardous waste incineration system of claim 3, wherein the circulation subsystem comprises: the cooling system comprises a mechanical cooling tower, a circulating water pump and a heat pump water feeding pump; the mechanical cooling tower is used for further cooling the low-temperature circulating water, the circulating water pump is used for conveying the low-temperature circulating water to the condenser, and the heat pump water feed pump is used for conveying the low-temperature circulating water discharged by the condenser to the absorption heat pump.
5. The hazardous waste incineration system of claim 1, wherein the primary air heated by the primary air heat exchanger has a temperature of 60-80 ℃.
6. The hazardous waste incineration system of claim 1, wherein the temperature of the secondary air heated by the secondary air heat exchanger is 60-80 ℃.
7. The hazardous waste incineration system of claim 1, the fuel gas used in the secondary combustion chamber comprising pit odors and natural gas.
8. The hazardous waste incineration system of claim 3, further comprising a medical waste cooking subsystem coupled to the power generation subsystem, the primary extraction of the steam turbine being used to cook medical waste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281078.1U CN218095948U (en) | 2022-05-24 | 2022-05-24 | Hazardous waste burns system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281078.1U CN218095948U (en) | 2022-05-24 | 2022-05-24 | Hazardous waste burns system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218095948U true CN218095948U (en) | 2022-12-20 |
Family
ID=84462352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221281078.1U Active CN218095948U (en) | 2022-05-24 | 2022-05-24 | Hazardous waste burns system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218095948U (en) |
-
2022
- 2022-05-24 CN CN202221281078.1U patent/CN218095948U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208205010U (en) | A kind of device of consumer waste incineration synergistic activity charcoal production | |
| CN104180675B (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN107269335B (en) | A kind of rubbish and combined cycle generation system of fuel gas-steam using combustion gas garbage drying | |
| CN101178017A (en) | Method for recycling and regenerating steel plant residual heat boiler saturated steam | |
| CN205279039U (en) | Mud and living beings co -combustion power generation system | |
| CN102607040A (en) | Method for incinerating domestic garbage and municipal sludge together | |
| CN201071741Y (en) | Electric furnace flue gas waste heat power generation system | |
| CN210595735U (en) | System for thermal power plant's boiler flue gas pyrolysis mud | |
| CN108579384A (en) | A kind of sludge treatment equipment of compound desiccation and burning coupled electricity-generation | |
| CN214400194U (en) | Municipal sludge drying pyrolysis carbonization system | |
| CN205592967U (en) | A waste heat power generation system for dangerous waste disposal trade of industry | |
| CN208534549U (en) | A kind of power generation by waste combustion system | |
| CN218095948U (en) | Hazardous waste burns system | |
| CN103939158A (en) | Low-rank coal purification power generation system | |
| CN110526543A (en) | A kind of system and method coupling coal-fired incineration disposal suitable for sludge | |
| CN111351063A (en) | Novel sludge incineration waste heat utilization system | |
| CN115899716A (en) | Thermal power plant flue gas-sludge-solar energy comprehensive gradient utilization system and method | |
| CN208124294U (en) | A kind of power generation by waste combustion system | |
| CN108731004A (en) | The cooling back installation and waste incineration and generating electricity device of water-cooled grate | |
| CN213300791U (en) | Peak-regulating frequency-modulating system of electric heating drying furnace of thermal power plant | |
| CN113357642A (en) | Energy-saving and efficient sludge drying and incineration treatment equipment and process | |
| CN209145665U (en) | A kind of steam feed pump system of combination biomass combustion heat source | |
| CN108800164B (en) | Sludge drying incineration heat balance treatment system and method | |
| CN204064000U (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN218095950U (en) | Heating device for waste liquid and fuel oil and incineration power generation system for hazardous waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |