CN217604103U - To ammonia waste residue incineration disposal system - Google Patents
To ammonia waste residue incineration disposal system Download PDFInfo
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- CN217604103U CN217604103U CN202221561037.8U CN202221561037U CN217604103U CN 217604103 U CN217604103 U CN 217604103U CN 202221561037 U CN202221561037 U CN 202221561037U CN 217604103 U CN217604103 U CN 217604103U
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Abstract
The utility model relates to an ammonia waste residue incineration treatment system, which comprises a precipitation separation tank, a drying cylinder, a feeding device, an ammonia waste residue storage tank, a rotary kiln, a secondary combustion chamber, a slag discharging device and a waste heat boiler; the utility model discloses have different solutions to the characteristics of different forms to the ammonia waste residue material under the different temperatures, realize the processing to the ammonia waste residue under the different temperature forms through categorised warehousing and transportation + incineration technology.
Description
Technical Field
The utility model relates to a hazardous waste handles technical field, especially relates to a to ammonia waste residue incineration disposal system.
Background
The waste residue of para-amino is industrial waste produced in the production process of para-aminophenol, and is a mixture of various substances such as amino compounds, water, sodium hydroxide and the like. The material has the following characteristics:
1) The ammonia waste residue is in a liquid-solid two-phase mixed state at normal temperature, and a crystal is separated out.
2) When the temperature of the ammonia waste residue is in the range of 60-95 ℃, the ammonia waste residue is black viscous liquid without a fixed melting point.
3) Belongs to toxic substances, and has occupational contact toxicity in the class I.
4) Has corrosiveness and the pH value is 9-10.
5) Has certain flammability and heat value of 2000-8000 Kcal/kg.
The hazardous waste belongs to HW11 hazardous waste, and is listed in the national hazardous waste list because the hazardous waste has the hazardous characteristics of toxicity, corrosivity, inflammability and the like and is easy to have harmful effects on the environment and human health. According to regulations, ammonia waste residues need to be strictly managed according to relevant requirements and standards of hazardous wastes in the processes of storage, transportation and disposal.
The ammonia waste residue has different material forms at different temperatures, and no process for burning the ammonia waste residue at different temperatures exists in the industry at present.
Disclosure of Invention
The utility model provides a to ammonia waste residue incineration disposal system, to the different solutions that propose to the characteristics that have different forms of ammonia waste residue material under the different temperatures, realize the processing to ammonia waste residue under the different temperature forms through categorised warehousing and transportation + incineration technology.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an ammonia waste residue incineration treatment system comprises a precipitation separation tank, a drying cylinder, a feeding device, an ammonia waste residue storage tank, a rotary kiln, a secondary combustion chamber, a slag discharging device and a waste heat boiler; the rotary kiln, the secondary combustion chamber and the waste heat boiler are connected in sequence; the sedimentation separation tank is provided with a normal-temperature ammonia waste residue inlet, a solid waste outlet and a waste liquid outlet, the solid waste outlet is connected with the material inlet of the drying cylinder, and the material outlet of the drying cylinder is connected with the feeding device of the rotary kiln; a waste liquid outlet of the precipitation separation tank is connected with an inlet of a waste liquid combustor of the rotary kiln; the ammonia waste residue storage tank is provided with a high-temperature ammonia waste residue inlet and a high-temperature ammonia waste residue outlet, and the high-temperature ammonia waste residue outlet is respectively connected with an inlet of the rotary kiln waste liquid combustor and an inlet of the secondary combustion chamber waste liquid combustor; the bottom of the secondary combustion chamber is provided with a slag discharging device, and the waste heat boiler is provided with a steam outlet.
And a steam outlet of the waste heat boiler is connected with a heat source inlet of the drying cylinder through a steam pipeline.
And a steam tracing device is arranged on the outer side of the ammonia waste residue storage tank, and a steam outlet of the waste heat boiler is connected with a tracing steam inlet of the steam tracing device through a steam pipeline.
And a steam outlet of the waste heat boiler is connected with an inlet of the waste liquid combustor of the rotary kiln and an inlet of the waste liquid combustor of the secondary combustion chamber through a steam pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
1) The adaptability of the temperature of a processed object is good; the method can treat the ammonia waste residue in different temperature forms, can treat the ammonia waste residue after liquid-solid separation at normal temperature, and can also treat the ammonia waste residue in a black viscous liquid state at high temperature;
2) The high-efficient steam that utilizes exhaust-heat boiler to produce, steam is in the utility model discloses in have three usage, four go to.
3) The utility model has the characteristics of energy-conservation, safety, environmental protection, etc.
Drawings
FIG. 1 is a schematic structural diagram of an ammonia waste residue incineration treatment system of the present invention.
In the figure: 1. a sedimentation separation tank 2, a drying cylinder 3, a hopper 4, a feeding device 5, an ammonia waste residue storage tank 6, a rotary kiln waste liquid burner 7, a rotary kiln 8, a secondary combustion chamber 9, a slag discharging device 10, a secondary combustion chamber waste liquid burner 11, an exhaust-heat boiler 12 and a steam heat tracing device
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the system for incineration treatment of ammonia waste residue of the present invention comprises a precipitation separation tank 1, a drying cylinder 2, a feeding device 4, a storage tank 5 for ammonia waste residue, a rotary kiln 7, a secondary combustion chamber 8, a slag discharging device 9 and a waste heat boiler 11; the rotary kiln 7, the secondary combustion chamber 8 and the waste heat boiler 11 are connected in sequence; the sedimentation separation tank 1 is provided with a normal-temperature ammonia waste residue inlet, a solid waste outlet and a waste liquid outlet, the solid waste outlet is connected with the material inlet of the drying cylinder 2, and the material outlet of the drying cylinder 2 is connected with the feeding device 4 of the rotary kiln 7; a waste liquid outlet of the precipitation separation tank 1 is connected with an inlet of a waste liquid combustor 6 of the rotary kiln; the ammonia waste residue storage tank 5 is provided with a high-temperature ammonia waste residue inlet and a high-temperature ammonia waste residue outlet, and the high-temperature ammonia waste residue outlet is respectively connected with an inlet of the rotary kiln waste liquid combustor 6 and an inlet of the secondary combustion chamber waste liquid combustor 10; the bottom of the secondary combustion chamber 8 is provided with a slag discharging device 9, and the waste heat boiler 11 is provided with a steam outlet.
And a steam outlet of the waste heat boiler 11 is connected with a heat source inlet of the drying cylinder 2 through a steam pipeline.
And a steam heat tracing device 12 is arranged on the outer side of the ammonia waste residue storage tank 5, and a steam outlet of the waste heat boiler 11 is connected with a heat tracing steam inlet of the steam heat tracing device 12 through a steam pipeline.
And a steam outlet of the waste heat boiler 11 is connected with an inlet of the rotary kiln waste liquid combustor 6 and an inlet of the secondary combustion chamber waste liquid combustor 10 through a steam pipeline.
The utility model is used for handle the ammonia waste residue that corresponds to have different forms under different temperatures. The ammonia waste residue at normal temperature is in a liquid-solid mixed state, and after liquid-solid separation, the solid waste and the waste liquid enter an incineration system for treatment respectively. The high temperature of 60-90 ℃ is viscous liquid to the state of the ammonia waste residue, has no fixed melting point, and is sent to an ammonia waste residue storage tank for storage and even stirring, and then sent to an incineration system for treatment.
The ammonia waste residue is treated by a burning system of the rotary kiln and the second combustion chamber to generate high-temperature flue gas and slag, and the slag is discharged by a slag discharging device. The high-temperature flue gas enters a waste heat boiler to generate steam, and the generated steam has three purposes: respectively used as a heat tracing source for an ammonia waste liquid storage tank, a heat source for a drying cylinder and a burner cleaning and cooling fire extinguishing medium.
The technical process of the ammonia waste residue incineration treatment system of the utility model adopts different treatment measures for ammonia waste residue materials with corresponding forms at different temperatures; the method comprises the following specific steps:
(1) When the ammonia waste residue is in a liquid-solid two-phase mixed state at normal temperature, the treatment process is as follows:
a) Separating the ammonia waste residue into solid waste and waste liquid through a precipitation separation tank 1:
b) The solid waste enters a drying cylinder 2 for drying, steam is introduced into the drying cylinder 2 to be used as a drying medium to remove moisture in the solid waste, and the humidity of the solid waste is reduced to 20% -60% and then the solid waste is sent to an incineration system for incineration treatment;
c) Directly sending the waste liquid to a combustor of an incineration system for incineration;
(2) The ammonia waste residue is viscous liquid at the high temperature of 60-90 ℃, and the treatment process is as follows:
a) The ammonia waste residue is stored in an ammonia waste residue storage tank 5 at a high temperature and is stirred;
b) And (4) delivering the ammonia waste residue to a burner of an incineration system for incineration at the high temperature after uniform stirring.
The burning system comprises a rotary kiln 7 and a secondary combustion chamber 8, and the burner of the burning system comprises a rotary kiln waste liquid burner 6 and a secondary combustion chamber waste liquid burner 10; high-temperature flue gas generated after incineration enters a waste heat boiler 11; the steam generated by the waste heat boiler 11 is used for the following 3 aspects:
(1) As the heat source for drying the solid waste in the drying cylinder 2:
(2) The heat tracing heat source is used for heating the ammonia waste residue storage tank 5, so that the temperature of the ammonia waste residue is kept within the range of 60-90 ℃;
(3) As the cleaning medium of the combustor in the burning system and the cooling and fire extinguishing medium of the burning system, the method specifically comprises the following steps:
a) Purging a burner in the incineration system with steam periodically;
b) When the overtemperature or local overhigh temperature phenomenon occurs in the incineration system, steam is introduced into the incineration system through the combustor, so that the effect of cooling is achieved, the oxygen content in the incineration system is reduced, the combustion process of combustible materials in the incineration system is inhibited, and the effect of fire extinguishing or fire extinguishing is achieved.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation processes are given, but the scope of the present invention is not limited to the following examples.
[ examples ] A method for producing a compound
As shown in fig. 1, in this embodiment, an ammonia waste incineration processing system includes a precipitation separation tank 1, a drying cylinder 2, a hopper 3, a feeding device 4, an ammonia waste storage tank 5, a rotary kiln waste liquid burner 6, a rotary kiln 7, a secondary combustion chamber 8, a slag discharging device 9, a secondary combustion chamber waste liquid burner 10, a waste heat boiler 11, and a steam heat tracing device 12.
The system is used for treating the ammonia waste residue with different forms correspondingly at different temperatures.
The ammonia waste residue is in a liquid-solid two-phase mixed state at normal temperature, and is separated into solid waste and waste liquid through a sedimentation separation tank 1: and the solid waste enters a drying cylinder 2 for drying, steam is introduced into the drying cylinder 2 to be used as a drying medium to remove moisture in the solid waste, and after the humidity of the solid waste is reduced to 20%, the solid waste is sent into a rotary kiln 7 through a hopper 3 and a feeding device 4 for treatment. The waste liquid is directly sent to a rotary kiln waste liquid combustor 6 and a secondary combustion chamber waste liquid combustor 10 for incineration.
The ammonia waste residue at the high temperature of 60-90 ℃ is viscous liquid without a fixed melting point, the ammonia waste residue enters the ammonia waste residue storage tank 5 firstly and is stored and uniformly stirred, and then enters the rotary kiln 7 and the secondary combustion chamber 10 through the rotary kiln waste liquid burner 6 and the secondary combustion chamber waste liquid burner 10 respectively for incineration.
The ammonia waste residue is incinerated in the rotary kiln 6 and the secondary combustion chamber 10 to generate high-temperature flue gas and slag, and the slag is discharged through a slag discharging device 9. The high-temperature flue gas enters the waste heat boiler 11 to generate steam.
The steam generated by the waste heat boiler 11 has the following three purposes:
1) The heat source for drying the ammonia waste residue is used as the drying cylinder 2; for ammonia waste residue at normal temperature, the solid waste residue separated by the precipitation separation tank 1 needs to enter a drying cylinder 2 for drying. Steam generated by the waste heat boiler 11 can be used as a heat source of the drying cylinder 2 and is used for reducing moisture in solid waste, reducing the total material amount entering the incineration system and reducing the fuel consumption of the incineration system;
2) As a heat source for heat tracing of the ammonia waste residue storage tank 5; the high-temperature ammonia waste residue enters the ammonia waste residue storage tank 5 for storage and stirring, in order to ensure that the working temperature of the material is in the range of 60-90 ℃, the steam tracing device 12 is adopted in the embodiment for tracing the ammonia waste residue storage tank 5, and steam generated by the waste heat boiler 11 can be used as a heat source for tracing the ammonia waste residue storage tank 5;
3) As the cooling and fire extinguishing medium for the cleaning and burning system of the waste liquid burner 6 of the rotary kiln and the waste liquid burner 10 of the secondary combustion chamber, the specific process is as follows:
the burners of incineration systems may have problems of clogging or deposits of impurities on the walls of the tubes during operation. Aiming at the problem, high-temperature steam is used for purging the combustor periodically, ammonia waste residue impurities in the combustor are cleaned, and the normal operation of the combustor is kept.
When the burning system has overtemperature or local overhigh temperature, steam can be introduced into the burning system through the rotary kiln waste liquid combustor 6 and the secondary combustion chamber waste liquid combustor 10, so that the effect of cooling can be achieved; on the other hand, the oxygen content in the incineration system can be reduced, the combustion process of combustible materials in the incineration system is inhibited, and the effect of 'fire extinguishing' or 'fire extinguishing' is achieved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. An ammonia waste residue incineration treatment system is characterized by comprising a precipitation separation tank, a drying cylinder, a feeding device, an ammonia waste residue storage tank, a rotary kiln, a secondary combustion chamber, a slag discharging device and a waste heat boiler; the rotary kiln, the secondary combustion chamber and the waste heat boiler are connected in sequence; the sedimentation separation tank is provided with a normal-temperature ammonia waste residue inlet, a solid waste outlet and a waste liquid outlet, the solid waste outlet is connected with the material inlet of the drying cylinder, and the material outlet of the drying cylinder is connected with the feeding device of the rotary kiln; a waste liquid outlet of the precipitation separation tank is connected with an inlet of a waste liquid combustor of the rotary kiln; the ammonia waste residue storage tank is provided with a high-temperature ammonia waste residue inlet and a high-temperature ammonia waste residue outlet, and the high-temperature ammonia waste residue outlet is respectively connected with an inlet of the rotary kiln waste liquid combustor and an inlet of the secondary combustion chamber waste liquid combustor; the bottom of the secondary combustion chamber is provided with a slag discharging device, and the waste heat boiler is provided with a steam outlet.
2. The system for incinerating ammonia waste residue according to claim 1, wherein the steam outlet of the waste heat boiler is connected with the heat source inlet of the drying cylinder through a steam pipeline.
3. The system for incineration disposal of ammonia waste residue according to claim 1, wherein a steam tracing device is provided outside the ammonia waste residue storage tank, and a steam outlet of the exhaust-heat boiler is connected to a tracing steam inlet of the steam tracing device through a steam pipe.
4. The system for incineration disposal of ammonia waste residue as recited in claim 1, wherein a steam outlet of said exhaust-heat boiler is connected to an inlet of the rotary kiln waste liquid burner and an inlet of the secondary combustion chamber waste liquid burner through steam pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221561037.8U CN217604103U (en) | 2022-06-21 | 2022-06-21 | To ammonia waste residue incineration disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221561037.8U CN217604103U (en) | 2022-06-21 | 2022-06-21 | To ammonia waste residue incineration disposal system |
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| Publication Number | Publication Date |
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| CN217604103U true CN217604103U (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221561037.8U Active CN217604103U (en) | 2022-06-21 | 2022-06-21 | To ammonia waste residue incineration disposal system |
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- 2022-06-21 CN CN202221561037.8U patent/CN217604103U/en active Active
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