CN115013819A - Secondary combustion chamber preheating system and method for medical waste incineration disposal - Google Patents
Secondary combustion chamber preheating system and method for medical waste incineration disposal Download PDFInfo
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- CN115013819A CN115013819A CN202210753133.0A CN202210753133A CN115013819A CN 115013819 A CN115013819 A CN 115013819A CN 202210753133 A CN202210753133 A CN 202210753133A CN 115013819 A CN115013819 A CN 115013819A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 289
- 239000002906 medical waste Substances 0.000 title claims abstract description 159
- 238000004056 waste incineration Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000003546 flue gas Substances 0.000 claims abstract description 76
- 238000000746 purification Methods 0.000 claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims description 12
- 239000000446 fuel Substances 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 description 9
- 231100000719 pollutant Toxicity 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a preheating system and a preheating method for a secondary combustion chamber for medical waste incineration disposal, wherein the system comprises: the first medical waste disposal system and the second medical waste disposal system are used for carrying out incineration disposal on medical waste, and the first medical waste disposal system comprises a first primary combustion chamber, a first secondary combustion chamber and a first smoke purification system; the second medical waste disposal system comprises a second first combustion chamber, a second combustion chamber and a second flue gas purification system; a first flue and a second flue are arranged between the first combustion chamber and the second combustion chamber; the first combustion chamber and the second combustion chamber convey high-temperature flue gas to the second combustion chamber through the first flue so as to preheat the second combustion chamber; or the second combustion chamber conveys high-temperature flue gas to the first combustion chamber and the second combustion chamber through the second flue so as to preheat the first combustion chamber and the second combustion chamber. Not only can preheat the hearth, but also can provide heat energy for the baking oven, thereby reducing the fuel consumption and saving the cost.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a secondary combustion chamber preheating system and a secondary combustion chamber preheating method for medical waste incineration disposal.
Background
The traditional starting method for burning medical wastes is to put some firewood into a first combustion chamber, then some diesel oil is splashed to ignite the firewood, then the medical wastes are gradually put into the first combustion chamber, primary air is started, the medical wastes are combusted in the first combustion chamber, the medical wastes are difficult to realize complete combustion in the first combustion chamber, smoke generated by combustion contains a large amount of pollutants, the smoke enters a second combustion chamber through an air flue, and the pollutants cannot be combusted in the second combustion chamber due to the fact that the temperature of a hearth of the second combustion chamber is far lower than the ignition temperature of the pollutants in a starting stage, and the pollutants are finally discharged to the atmosphere through a downstream working section of a system to cause atmospheric pollution. Studies have shown that more than 90% of the pollutants produced by incineration disposal of medical waste come from the start-up phase. In order to reduce pollutants generated in the furnace starting stage, the latest national standard "pollution control standard for medical waste treatment and disposal (GB 39787.3.1) specifies: when the incinerator is started, the temperature in the hearth is firstly raised to above 850 ℃ which is regulated, and then medical wastes can be put into the first combustion chamber, at the moment, flue gas containing a large amount of pollutants generated by the first combustion chamber enters the second combustion chamber, and the pollutants are burnt out in the second combustion chamber under the combustion supporting of secondary air because the temperature of the hearth of the second combustion chamber is above 850 ℃ and is higher than the ignition temperature of the pollutants. To meet the requirement, auxiliary fuel is generally used for preheating a hearth when the furnace is started, and the process consumes a large amount of fuel and long furnace starting time, so that the furnace starting cost is huge.
Disclosure of Invention
Therefore, it is necessary to provide a preheating system and method for a secondary combustion chamber for medical waste incineration disposal to solve the problems of excessive fuel consumption, long furnace starting time and huge furnace starting cost caused by preheating a furnace chamber with auxiliary fuel when starting the furnace in the prior art.
The application provides a be used for medical treatment to burn and deal with second combustion chamber preheating system includes:
the first medical waste disposal system and the second medical waste disposal system are used for carrying out incineration disposal on medical waste, and the first medical waste disposal system comprises a first primary combustion chamber, a first secondary combustion chamber and a smoke purification system; the second medical waste disposal system comprises a second first combustion chamber, a second combustion chamber and a flue gas purification system;
a first flue and a second flue are arranged between the first combustion chamber and the second combustion chamber;
the first combustion chamber and the second combustion chamber convey high-temperature flue gas to the second combustion chamber through the first flue so as to preheat the second combustion chamber; or
And the second combustion chamber conveys high-temperature flue gas to the first combustion chamber and the second combustion chamber through the second flue so as to preheat the first combustion chamber and the second combustion chamber.
In an embodiment, a first flue valve is arranged on one side of the first flue close to the first second combustion chamber, and a second flue valve is arranged on one side of the first flue close to the second combustion chamber.
In an embodiment, a third flue valve is disposed on one side of the second flue close to the second combustion chamber, and a fourth flue valve is disposed on one side of the second flue close to the first combustion chamber.
In one embodiment, the first medical waste disposal system comprises:
the combustible flue gas of the first combustion chamber passes through the first excessive flue to enter the first combustion chamber for combustion.
In one embodiment, the second medical waste disposal system comprises:
the second combustion chamber is communicated with the first combustion chamber and the second combustion chamber through a second excess flue, and combustible smoke of the second combustion chamber enters the second combustion chamber through the second excess flue to be combusted.
In one embodiment, the first medical waste disposal system is provided with a first induced draft fan, and the second medical waste disposal system is provided with a second induced draft fan;
when the second combustion chamber is preheated, the working frequency of the first induced draft fan is reduced, and the working frequency of the second induced draft fan is started and increased;
when right when first flash chamber preheats, reduce the operating frequency of second draught fan, and start and increase the operating frequency of first draught fan.
In one embodiment, when the preheating temperature of the second combustion chamber exceeds 850 ℃, medical waste is put into the second combustion chamber.
In one embodiment, when the preheating temperature of the first second combustion chamber exceeds 850 ℃, medical waste is put into the first second combustion chamber.
In one embodiment, a preheating method for a secondary combustion chamber for medical waste incineration disposal is provided, which comprises the following steps:
putting medical waste into a first primary combustion chamber of a first medical waste disposal system, and incinerating the medical waste;
combustible flue gas generated after combustion in the first combustion chamber is transmitted to the first second combustion chamber through a first transition flue to be subjected to secondary combustion;
transmitting high-temperature flue gas generated after combustion in the first combustion chamber and the second combustion chamber to a second combustion chamber of a second medical waste disposal system through a first flue for preheating;
when the temperature of the second combustion chamber reaches a preset temperature, medical waste is put into the second combustion chamber of the second medical waste disposal system and is incinerated;
and transmitting combustible flue gas generated after combustion in the second first combustion chamber into the second combustion chamber through a second transition flue for secondary combustion.
In an embodiment, first medical waste disposal system is provided with first draught fan, the waste disposal system of second medical treatment is provided with the second draught fan, with the high temperature flue gas that generates after burning in the first combustion chamber, pass through first flue, transmit to preheat in the second combustion chamber of second medical waste disposal system, include:
and reducing the working frequency of the first induced draft fan, starting and increasing the working frequency of the second induced draft fan, so that high-temperature flue gas generated after combustion in the first combustion chamber and the second combustion chamber passes through the first flue and is transmitted to the second combustion chamber of the second medical waste disposal system for preheating.
The preheating system and the method for the secondary combustion chamber for medical waste incineration disposal comprise: the first medical waste disposal system and the second medical waste disposal system are used for carrying out incineration disposal on medical waste, and the first medical waste disposal system comprises a first primary combustion chamber, a first secondary combustion chamber and a smoke purification system; the second medical waste disposal system comprises a second first combustion chamber, a second combustion chamber and a flue gas purification system; a first flue and a second flue are arranged between the first combustion chamber and the second combustion chamber; the first combustion chamber and the second combustion chamber convey high-temperature flue gas to the second combustion chamber through the first flue so as to preheat the second combustion chamber; or the second combustion chamber conveys high-temperature flue gas to the first combustion chamber and the second combustion chamber through the second flue so as to preheat the first combustion chamber and the second combustion chamber. In this application, this first medical waste disposal system and second medical waste disposal system can the independent operation, also can preheat the second combustion chamber of second medical waste disposal system through the second combustion chamber of first medical waste disposal system, perhaps right through the second combustion chamber of second medical disposal system the second combustion chamber of first medical waste disposal system preheats, not only can start the stove, preheats furnace through the high temperature flue gas that other medical waste disposal system burning medical waste produced, also can provide heat energy for the baker, reduces fuel consumption, saves a large amount of bakers, starts the stove expense.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic diagram of an exemplary application environment of a preheating system for a secondary combustion chamber using medical waste incineration according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an exemplary application environment of a preheating system of a secondary combustion chamber for incineration disposal of medical waste;
FIG. 3 is a schematic diagram of an exemplary application environment of a preheating system for a secondary combustion chamber for incineration disposal of medical waste;
fig. 4 is a flow chart of a preheating method for a secondary combustion chamber by medical waste incineration disposal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, in one embodiment, a secondary combustion chamber preheating system for medical waste disposal is provided, comprising: a first medical waste disposal system A and a second medical waste disposal system B for incineration disposal of medical waste, wherein the first medical waste disposal system A comprises a first primary combustion chamber (not shown in the figure), a first secondary combustion chamber A1 and a first flue gas purification system (not shown in the figure); the second medical waste disposal system B comprises a second first combustion chamber (not shown in the figure), a second combustion chamber B1 and a second flue gas purification system (not shown in the figure); a first flue A7 and a second flue B7 are arranged between the first second combustion chamber A1 and the second combustion chamber A2; the first combustion chamber A1 conveys high-temperature flue gas to the second combustion chamber B1 through the first flue A7 so as to preheat the second combustion chamber B1; or the second combustion chamber B1 conveys high-temperature flue gas to the first combustion chamber A1 through the second flue B7 so as to preheat the first combustion chamber A1. The furnace can be preheated by high-temperature flue gas generated by burning medical waste by other medical waste disposal systems when the furnace is started, so that the fuel consumption can be effectively reduced, a large amount of furnace drying and starting expenses can be saved, the preheating time can be shortened, and heat energy can be provided for the furnace drying.
Wherein the system may further comprise a plurality of other medical waste disposal systems.
In the embodiment of the application, a first flue valve a6.1 is arranged on one side of the first flue a7, which is close to the first second combustion chamber a1, and a second flue valve B6.2 is arranged on one side of the first flue a7, which is close to the second combustion chamber. Specifically, a high-temperature flue gas outlet a5 is arranged on the first second combustion chamber a1, the a5 is communicated with the first flue a7, the first flue valve a6.1 is arranged on one side close to the a5, a high-temperature flue gas inlet B3 is arranged on the second combustion chamber B1, the high-temperature flue gas inlet B3 is communicated with the first flue a7, the second flue valve B6.2 is arranged on one side close to the high-temperature flue gas inlet B3, and when the first flue valve a6.1 and the second flue valve B6.2 are opened simultaneously, high-temperature flue gas generated after combustion in the first second combustion chamber a1 enters the second combustion chamber B1 to be preheated.
In the embodiment of the application, a third flue valve B6.1 is arranged on one side of the second flue B7 close to the second combustion chamber B1, and a fourth flue valve a6.2 is arranged on one side of the second flue B7 close to the first combustion chamber. Specifically, a high-temperature flue gas outlet B5 is arranged on the second combustion chamber B1, the B5 is communicated with the second flue B7, the third flue valve B6.1 is arranged on one side close to the B5, a high-temperature flue gas inlet A3 is arranged on the first combustion chamber a1, the high-temperature flue gas inlet A3 is communicated with the second flue B7, a fourth flue valve a6.2 is arranged on one side close to the high-temperature flue gas inlet A3, and when the third flue valve B6.1 and the fourth flue valve a6.2 are opened simultaneously, high-temperature flue gas generated after combustion in the second combustion chamber B1 enters the first combustion chamber a1 for preheating.
In the present embodiment, when the first flue valve a6.1, the second flue valve B6.2, the third flue valve B6.1 and the fourth flue valve a6.2 are closed simultaneously, the first medical waste disposal system a operates independently of the second medical waste disposal system B.
In an embodiment of the present application, the first medical waste disposal system a comprises: the first transition flue A4 is arranged between the first combustion chamber and the first second combustion chamber A1 and is used for communicating the first combustion chamber with the first second combustion chamber A1, and combustible smoke of the first combustion chamber enters the first second combustion chamber A1 through the first transition flue A4 to be combusted. Specifically, when a medical waste disposal system A normally operates, medical waste is put into a first combustion chamber, the medical waste is incinerated in the first combustion chamber, combustible smoke generated after treatment can be transmitted into a first secondary combustion chamber A1 through A4 to be incinerated again, and high-temperature smoke generated after incineration can be preheated for secondary combustion chambers of other medical waste disposal systems.
In an embodiment of the present application, the second medical waste disposal system B includes: the second medical waste disposal system comprising: and the second transition flue B4 is arranged between the second first combustion chamber and the second combustion chamber B1 and is used for communicating the second first combustion chamber with the second combustion chamber B1, and combustible smoke of the second first combustion chamber enters the second combustion chamber B1 through the second transition flue B4 to be combusted. Specifically, when the second medical waste disposal system B is in normal operation, medical waste is put into the second first combustion chamber, and is incinerated in the second first combustion chamber, combustible flue gas generated after treatment can be transmitted into the second combustion chamber B1 through B4 to be incinerated again, and high-temperature flue gas generated after incineration can be used for preheating the second combustion chambers of other medical waste disposal systems.
In the embodiment of the present application, the first medical waste disposal system a is provided with a first induced draft fan (not shown in the figure), and the second medical waste disposal system B is provided with a second induced draft fan (not shown in the figure); when the second combustion chamber B1 is preheated, the working frequency of the first induced draft fan is reduced, and the working frequency of the second induced draft fan is started and increased; when being right when preheating first second combustion chamber A1, reduce the operating frequency of second draught fan, and start and increase the operating frequency of first draught fan. Through adjusting the operating frequency of this first draught fan and second draught fan, can flow into other second combustion chambers with high temperature flue gas through the valve of opening and preheat.
In an embodiment of the application, when the second combustion chamber is preheated, medical waste can be put into the second first combustion chamber when the preheating temperature of the second combustion chamber exceeds 850 ℃. When the first second combustion chamber is preheated, when the preheating temperature of the first second combustion chamber exceeds 850 ℃, medical wastes can be put into the first second combustion chamber. When the preheating temperature reaches 850 ℃, the preheating temperature is higher than the ignition temperature of the combustible flue gas, so that the combustible flue gas is burnt out in a secondary combustion chamber under the combustion supporting of secondary air, the combustion is more sufficient, and the residue of harmful substances is reduced.
Referring to fig. 4, in an embodiment of the present application, there is provided a preheating method for a secondary combustion chamber by medical waste incineration disposal, comprising the following steps:
in step S110, medical waste is put into a first primary combustion chamber of a first medical waste disposal system, and is subjected to incineration disposal;
in step S120, combustible flue gas generated after combustion in the first combustion chamber is transmitted to the first second combustion chamber through the first transition flue to perform secondary combustion;
in step S130, transmitting the high-temperature flue gas generated after combustion in the first combustion chamber and the second combustion chamber to a second combustion chamber of the second medical waste disposal system through a first flue for preheating;
in step S140, when the temperature of the second combustion chamber reaches a preset temperature, feeding medical waste into the second combustion chamber of the second medical waste disposal system, and performing incineration disposal;
in step S150, the combustible flue gas generated by combustion in the second first combustion chamber is transported to the second combustion chamber through a second transition flue for secondary combustion.
In this application embodiment, first medical waste disposal system is provided with first draught fan, the waste disposal system of second medical treatment is provided with the second draught fan, will the high temperature flue gas that generates in the first combustion chamber of second combustion chamber after burning passes through first flue transmits extremely preheat in the second combustion chamber of second medical waste disposal system, include:
and reducing the working frequency of the first induced draft fan, starting and increasing the working frequency of the second induced draft fan, so that high-temperature flue gas generated after combustion in the first combustion chamber and the second combustion chamber passes through the first flue and is transmitted to the second combustion chamber of the second medical waste disposal system for preheating.
Specifically, referring to fig. 1, when the first medical waste disposal system a and the second medical waste disposal system B operate independently, the first flue valve a6.1, the second flue valve B6.2, the third flue valve B6.1, and the fourth flue valve a6.2 are all in a closed state, and at this time, the first medical waste disposal system a and the second medical waste disposal system B do not interfere with each other, and can respectively dispose of medical waste.
Referring to fig. 2, the preheating of the second medical waste disposal system B by the first medical waste disposal system a is described as an example:
firstly, medical waste is put into a first combustion chamber of a first medical waste disposal system A, the medical waste is incinerated in the first combustion chamber to generate combustible flue gas, the combustible flue gas enters a first second combustion chamber A1 from a flue gas inlet A3 of a first second combustion chamber A1 through a first transition flue A4, the combustible flue gas is mixed with combustion-supporting air in A1 to burn out combustible matters, high-temperature flue gas is generated, and the high-temperature flue gas is transmitted to a first flue gas purification system from a flue gas outlet A2 to be subjected to flue gas purification treatment.
When the second medical waste disposal system B is started, the first flue valve a6.1 and the second flue valve B6.2 can be opened, the third flue valve B6.1 and the fourth flue valve a6.2 are closed, the second induced draft fan of the second medical waste disposal system B is opened, the working frequency of the first induced draft fan of the first medical waste disposal system a is reduced, the working frequency of the second induced draft fan is increased, so that part of the high-temperature flue gas generated by the first medical waste disposal system a passes through the high-temperature flue gas outlet a5, passes through the first flue valve a6.1 and the second flue valve B6.2, enters the second combustion chamber B1 of the second medical waste disposal system B through the high-temperature flue gas inlet 3, and flows out from the flue gas outlet B2 of the second combustion chamber B1 to enter the next process stage, thereby preheating the second combustion chamber B1. When the second combustion chamber B1 is preheated to above 850 ℃, medical waste begins to be put into the second combustion chamber and is incinerated. At this time, the first flue valve a6.1, the second flue valve B6.2, the third flue valve B6.1, and the fourth flue valve a6.2 may be closed, and the first medical waste disposal system a and the second medical waste disposal system B may operate independently without interfering with each other.
Referring to fig. 3, the preheating of the second medical waste disposal system a by the second medical waste disposal system B is described as an example:
firstly, medical waste is put into a second first combustion chamber of a second medical waste treatment system B, the medical waste is incinerated in the second first combustion chamber to generate combustible flue gas, the combustible flue gas can enter the second combustion chamber B1 from a flue gas inlet B3 of the second combustion chamber B1 through a second transition flue B4, the combustible is mixed with combustion-supporting air in the second combustion chamber B1 to burn out the combustible, high-temperature flue gas is generated, and the high-temperature flue gas is transmitted to a second flue gas purification treatment system from a flue gas outlet B2 to be subjected to flue gas purification treatment.
When the first medical waste disposal system A is started, a third flue valve B6.1 and a fourth flue valve A6.2 are opened, the first flue valve A6.1 and a second flue valve B6.2 are closed, a first induced draft fan of the first medical waste disposal system A is opened, the working frequency of a second induced draft fan of the second medical waste disposal system B is reduced, the working frequency of the first induced draft fan is increased, high-temperature flue gas generated by part of the second medical waste disposal system B passes through a high-temperature flue gas outlet B5, enters the third flue valve B6.1 and the fourth flue valve A6.2, enters a first secondary combustion chamber A1 of the first medical waste disposal system A through a high-temperature flue gas inlet A3, flows out from a flue gas outlet A2 of the first secondary combustion chamber A1 and enters a next process section, and preheating of the first secondary combustion chamber A1 is achieved. When the first secondary combustion chamber A1 is preheated to above 850 ℃, medical waste is put into the first primary combustion chamber and is incinerated. At this time, the first flue valve a6.1, the second flue valve B6.2, the third flue valve B6.1, and the fourth flue valve a6.2 may be closed, and the first medical waste disposal system a and the second medical waste disposal system B operate independently without interfering with each other.
In this application, this first medical waste handles system and second medical waste handles system can the autonomous operation, also can preheat the second combustion chamber of second medical waste handles system through the second combustion chamber of first medical waste handles system, perhaps it is right through the second combustion chamber of second medical waste handles system the second combustion chamber of first medical waste handles system preheats, not only can when starting the stove, preheats furnace through the high temperature flue gas that other medical waste handles system burning medical waste produced, also can provide heat energy for the baker, reduces fuel consumption, saves a large amount of bakers, starts the stove expense.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A secondary combustion chamber preheating system for medical waste incineration disposal, the system comprising:
the first medical waste disposal system and the second medical waste disposal system are used for carrying out incineration disposal on medical waste, and the first medical waste disposal system comprises a first primary combustion chamber, a first secondary combustion chamber and a first smoke purification system; the second medical waste disposal system comprises a second first combustion chamber, a second combustion chamber and a second flue gas purification system;
a first flue and a second flue are arranged between the first combustion chamber and the second combustion chamber;
the first combustion chamber and the second combustion chamber convey high-temperature flue gas to the second combustion chamber through the first flue so as to preheat the second combustion chamber; or
And the second combustion chamber conveys high-temperature flue gas to the first combustion chamber and the second combustion chamber through the second flue so as to preheat the first combustion chamber and the second combustion chamber.
2. The secondary combustion chamber preheating system for medical waste incineration disposal according to claim 1, wherein a first flue valve is provided on a side of the first flue adjacent to the first secondary combustion chamber, and a second flue valve is provided on a side of the first flue adjacent to the second secondary combustion chamber.
3. A secondary combustion chamber preheating system for medical waste incineration disposal according to claim 1, wherein a third flue valve is provided on a side of said second flue adjacent to said secondary combustion chamber, and a fourth flue valve is provided on a side of said second flue adjacent to said first secondary combustion chamber.
4. The secondary combustion chamber preheating system for medical waste incineration disposal according to claim 1, wherein said first medical waste disposal system includes:
the first combustion chamber and the second combustion chamber are arranged between the first combustion chamber and the second combustion chamber and are used for being communicated with the first excess flue of the first combustion chamber and the second combustion chamber, and combustible smoke of the first combustion chamber enters the first combustion chamber through the first excess flue to be combusted.
5. A secondary combustion chamber preheating system for medical waste incineration disposal according to claim 1, wherein said second medical waste disposal system comprises:
the second combustion chamber is communicated with the first combustion chamber and the second excess flue of the second combustion chamber, and combustible smoke of the first combustion chamber enters the second combustion chamber through the second excess flue to be combusted.
6. The secondary combustion chamber preheating system for medical waste incineration disposal according to claim 1, wherein the first medical waste disposal system is provided with a first induced draft fan, and the second medical waste disposal system is provided with a second induced draft fan;
when the second combustion chamber is preheated, the working frequency of the first induced draft fan is reduced, and the working frequency of the second induced draft fan is started and increased;
when right when first flash chamber preheats, reduce the operating frequency of second draught fan, and start and increase the operating frequency of first draught fan.
7. The secondary combustion chamber preheating system for medical waste incineration disposal according to any one of claims 1 to 6, wherein medical waste is charged into the secondary primary combustion chamber when the secondary combustion chamber preheating temperature exceeds 850 ℃.
8. The secondary combustion chamber preheating system for medical waste incineration disposal according to any one of claims 1 to 6, wherein medical waste is charged into the first primary combustion chamber when the preheating temperature of the first secondary combustion chamber exceeds 850 ℃.
9. A secondary combustion chamber preheating method for medical waste incineration disposal is characterized by comprising the following steps:
putting medical waste into a first primary combustion chamber of a first medical waste disposal system, and incinerating the medical waste;
combustible flue gas generated after combustion in the first combustion chamber is transmitted to the first second combustion chamber through a first transition flue to be subjected to secondary combustion;
transmitting high-temperature flue gas generated after combustion in the first combustion chamber and the second combustion chamber to a second combustion chamber of a second medical waste disposal system through a first flue for preheating;
when the temperature of the second combustion chamber reaches a preset temperature, medical waste is put into the second combustion chamber of the second medical waste disposal system and is incinerated;
and transmitting combustible flue gas generated after combustion in the second first combustion chamber into the second combustion chamber through a second transition flue for secondary combustion.
10. The preheating method for the secondary combustion chamber for the incineration disposal of the medical wastes according to claim 9, wherein the first medical waste disposal system is provided with a first induced draft fan, the second medical waste disposal system is provided with a second induced draft fan, and the high-temperature flue gas generated after the combustion in the first secondary combustion chamber is transmitted to the second secondary combustion chamber of the second medical waste disposal system through the first flue for preheating, and the preheating method comprises the following steps:
and reducing the working frequency of the first induced draft fan, starting and increasing the working frequency of the second induced draft fan, so that high-temperature flue gas generated after combustion in the first combustion chamber and the second combustion chamber passes through the first flue and is transmitted to the second combustion chamber of the second medical waste disposal system for preheating.
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| JP2007315719A (en) * | 2006-05-29 | 2007-12-06 | Takuma Co Ltd | Surface melting furnace |
| CN101476730A (en) * | 2009-01-13 | 2009-07-08 | 王惠生 | Energy-saving rubbish and dangerous waste incineration processing method |
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