CN114076320A - Control method and device for sulfur-containing waste treatment system and readable storage medium - Google Patents
Control method and device for sulfur-containing waste treatment system and readable storage medium Download PDFInfo
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- CN114076320A CN114076320A CN202110739640.4A CN202110739640A CN114076320A CN 114076320 A CN114076320 A CN 114076320A CN 202110739640 A CN202110739640 A CN 202110739640A CN 114076320 A CN114076320 A CN 114076320A
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- 238000000034 method Methods 0.000 title claims abstract description 180
- 239000002699 waste material Substances 0.000 title claims abstract description 113
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 239000011593 sulfur Substances 0.000 title claims abstract description 96
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 96
- 230000008569 process Effects 0.000 claims abstract description 130
- 238000006243 chemical reaction Methods 0.000 claims abstract description 80
- 239000003054 catalyst Substances 0.000 claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 107
- 239000001301 oxygen Substances 0.000 claims description 107
- 229910052760 oxygen Inorganic materials 0.000 claims description 107
- 238000001816 cooling Methods 0.000 claims description 53
- 238000010438 heat treatment Methods 0.000 claims description 45
- 238000001035 drying Methods 0.000 claims description 39
- 238000005406 washing Methods 0.000 claims description 31
- 238000002485 combustion reaction Methods 0.000 claims description 29
- 238000010792 warming Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 13
- 238000004886 process control Methods 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 abstract description 46
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 24
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 18
- 230000000630 rising effect Effects 0.000 description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 239000002253 acid Substances 0.000 description 11
- 239000002737 fuel gas Substances 0.000 description 10
- 238000004590 computer program Methods 0.000 description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 235000010269 sulphur dioxide Nutrition 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000909 polytetrahydrofuran Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/80—Apparatus
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/80—Apparatus
- C01B17/806—Absorbers; Heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The embodiment of the invention provides a control method and device of a sulfur-containing waste treatment system and a readable storage medium, and belongs to the technical field of chemical industry. The method comprises the following steps: controlling the process valve to be closed, and opening the furnace baking valve to bake the reaction furnace; when the oven is finished, controlling the oven valve to be closed, and opening the process valve; controlling the temperature-raising valve to be closed so as to raise the temperature of the catalyst in the converter; and when the temperature rise of the catalyst in the converter is finished, controlling the temperature rise valve to be opened so as to carry out a process flow. The invention has the advantages of energy saving, consumption reduction, low control concentration of nitrogen oxides in the process gas, low investment and simple operation.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a control method and a control device for a sulfur-containing waste treatment system and a readable storage medium.
Background
The annual production amount of waste sulfuric acid and sulfur-containing waste liquid in China is millions of tons, and most of the waste liquid contains organic matters and is difficult to directly recycle. The sulfur-containing waste treatment system can treat sulfur-containing waste (such as sulfur-containing waste liquid, sulfur-containing waste gas, waste sulfuric acid and the like), but the current sulfur-containing waste treatment system is not perfect, so that the problems of long regeneration process flow, more equipment, easy corrosion, high operation cost, complex operation and the like are caused.
Disclosure of Invention
The control method, the control device and the readable storage medium of the sulfur-containing waste treatment system have the advantages of energy conservation, consumption reduction, low control concentration of nitrogen oxides in process gas, low investment and simple operation.
In order to achieve the above object, an embodiment of the present invention provides a method for controlling a sulfur-containing waste treatment system, where the sulfur-containing waste treatment system includes a reactor, an air cooling tower, a cooling washing tower, a drying tower, a blower, and a converter through which sulfur-containing waste passes in sequence, and further includes a temperature raising valve, a process valve, and a furnace valve, where the temperature raising valve is located on a first pipeline between the drying tower and the blower, the process valve is located on a second pipeline between the air cooling tower and the cooling washing tower, and the furnace valve is located on a third pipeline communicating the second pipeline with the outside, the method including: controlling the process valve to be closed, and opening the furnace baking valve to bake the reaction furnace; when the oven is finished, controlling the oven valve to be closed, and opening the process valve; controlling the temperature-raising valve to be closed so as to raise the temperature of the catalyst in the converter; and when the temperature rise of the catalyst in the converter is finished, controlling the temperature rise valve to be opened so as to carry out a process flow.
Preferably, the system for treating sulfur-containing waste further comprises a temperature raising furnace, a temperature raising pipeline connected among the blower, the temperature raising furnace and the converter, and a first valve arranged on the temperature raising pipeline, wherein the step of raising the temperature of the catalyst in the converter comprises: controlling the blower and the heating furnace to operate; controlling the first valve to be opened so that the medium heated by the heating furnace circulates among the blower, the heating furnace, and the converter through the heating line; detecting the temperature of each layer inlet of the converter; and when the temperature of each layer of inlet of the converter is higher than the preset temperature, controlling the first valve to be closed so as to avoid overtemperature at the temperature rise stage.
Preferably, the sulfurous waste treatment system further includes a process line connected between the blower, the warming furnace, the converter, and a second valve provided on the process line, the method further comprising: controlling the second valve to close while controlling the first valve to open; controlling the second valve to open while controlling the first valve to close.
Preferably, the reaction furnace comprises a first air inlet arranged at the front end of the reaction furnace, the reaction furnace further comprises a second air inlet arranged at the tail end of the reaction furnace, and the process flow comprises the following steps: detecting an amount of oxygen at the location of the first air inlet and the second air inlet; controlling air entering from the first air inlet such that an amount of oxygen at a location of the first air inlet is a first amount of oxygen; control the air is followed second air inlet gets into to make the oxygen content in second air inlet's position department is second oxygen volume, second oxygen volume is the theoretical oxygen volume of the normal combustion process of sulphur waste, first oxygen volume is less than second oxygen volume.
Preferably, air enters the reactor from the second air inlet and the first air inlet in a tangential direction of a cross-sectional circle of the reactor.
The invention also provides a control device of a sulfur-containing waste treatment system, which comprises a reaction furnace, an air cooling tower, a cooling washing tower, a drying tower, a blower and a converter, wherein the sulfur-containing waste sequentially passes through the reaction furnace, the air cooling tower, the cooling washing tower, the drying tower, the blower and the converter, and also comprises a heating valve, a process valve and a drying furnace valve, wherein the heating valve is positioned on a first pipeline between the drying tower and the blower, the process valve is positioned on a second pipeline between the air cooling tower and the cooling washing tower, and the drying furnace valve is positioned on a third pipeline communicating the second pipeline with the outside, the control device comprises: the system comprises a furnace baking control unit, a temperature rise control unit and a process control unit, wherein the furnace baking control unit is used for controlling the process valve to be closed, and the furnace baking valve is opened so as to bake the reaction furnace; when the oven is finished, controlling the oven valve to be closed, and opening the process valve; the temperature rise control unit is used for controlling the temperature rise valve to be closed so as to raise the temperature of the catalyst in the converter; and the process control unit is used for controlling the heating valve to be opened when the temperature of the catalyst in the converter is raised, so as to carry out a process flow.
Preferably, the system for treating sulfur-containing waste further comprises a temperature raising furnace, a temperature raising pipeline connected among the blower, the temperature raising furnace and the converter, and a first valve disposed on the temperature raising pipeline, wherein the temperature raising control unit comprises: the device comprises a device control unit, a valve control unit and a first detection unit, wherein the device control unit is used for controlling the operation of the blower and the operation of the warming furnace; the valve control unit is used for controlling the first valve to be opened so that the medium heated by the heating furnace circulates in the blower, the heating furnace and the converter through the heating pipeline; the first detection unit is used for detecting the temperature of each layer of inlet of the converter; and the valve control unit is also used for controlling the first valve to be closed when the temperature of each layer of inlet of the converter is higher than the preset temperature so as to avoid overtemperature at the temperature rise stage.
Preferably, the sulfurous waste treatment system further comprises a process line connected between the blower, the warming furnace, and the converter, and a second valve provided on the process line, the valve control unit further being configured to: controlling the second valve to close while controlling the first valve to open; controlling the second valve to open while controlling the first valve to close.
Preferably, the reaction furnace includes a first air inlet provided at a front end of the reaction furnace, the reaction furnace further includes a second air inlet provided at a rear end of the reaction furnace, and the process control unit includes: the second detection unit is used for detecting oxygen amounts at the positions of the first air inlet and the second air inlet; the air inlet control unit is used for controlling air to enter from the first air inlet so that the oxygen amount at the position of the first air inlet is a first oxygen amount; control the air is followed second air inlet gets into to make the oxygen content in second air inlet's position department is second oxygen volume, second oxygen volume is the theoretical oxygen volume of the normal combustion process of sulphur waste, first oxygen volume is less than second oxygen volume.
Preferably, air enters the reactor from the second air inlet and the first air inlet in a tangential direction of a cross-sectional circle of the reactor.
The embodiment of the invention also provides a sulfur-containing waste treatment system, which comprises the control device of the sulfur-containing waste treatment system.
Embodiments of the present invention also provide a machine-readable storage medium having stored thereon instructions for causing a machine to execute the above-described method of controlling a sulfur-containing waste treatment system.
Through the technical scheme, the sulfur-containing waste treatment system provided by the invention has the advantages of energy conservation, consumption reduction, low control concentration of nitrogen oxides in process gas, low investment and simplicity in operation.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a flow chart of a method for controlling a sulfur-containing waste treatment system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the front half of a sulfur-containing waste treatment system according to one embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for increasing temperature during start-up of a sulfur-containing waste treatment system according to an embodiment of the present invention;
FIG. 4 is a flow chart of a method for increasing temperature during start-up of a sulfur-containing waste treatment system according to another embodiment of the present invention;
FIG. 5 is a schematic structural view of the second half of a sulfur-containing waste treatment system according to an embodiment of the present invention;
FIG. 6 is a flow chart of a method for controlling combustion in a furnace of a sulfur-containing waste treatment system according to an embodiment of the present invention;
FIG. 7 is a flowchart of a method for controlling combustion in a furnace of a sulfur-containing waste treatment system according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a reaction furnace according to an embodiment of the present invention;
fig. 9 is a block diagram showing a control device of the sulfur-containing waste treatment system according to an embodiment of the present invention.
Description of the reference numerals
201 reacting furnace 202 air cooling tower
203 cooling washing tower 204 drying tower
205 evaporative concentration apparatus 206 air blower
207 filter 208 heat exchanger
209 steam superheater 210 electric demister
212 air cooling tower circulating pump 213 first-stage washing circulating pump
214 two-stage washing circulating pump 215 circulating water cooler
216 concentrated acid circulating pump 217 drying tower cooler of drying tower
218 warm valve 219 process valve
220 oven valve
101 blower 102 heating furnace
103 converter 104 external first heat exchanger
105 external second heat exchanger 106 multistage absorption tower
107 first heat exchanger 108 first absorption cycle acid cooler
109 second absorption cycle acid cooler 110 first absorption cycle pump
111 second absorption circulation pump 112 first internal heat exchanger
113 second internal heat exchanger 114 second heat exchanger
810 furnace 820 fuel gas inlet
830 Process gas outlet 840 first air inlet
850 second air inlet 1 oven control unit
2 temperature rise control unit 3 Process control Unit
4 equipment control unit 5 valve control unit
6 first detecting unit 7 second detecting unit
8 air intake control unit
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart of a method for controlling a sulfur-containing waste treatment system according to an embodiment of the present invention. As shown in fig. 1, the system for treating sulfur-containing waste includes a reaction furnace, an air cooling tower, a cooling washing tower, a drying tower, a blower and a converter through which the sulfur-containing waste sequentially passes, and further includes a temperature raising valve, a process valve and a furnace valve, wherein the temperature raising valve is located on a first pipeline between the drying tower and the blower, the process valve is located on a second pipeline between the air cooling tower and the cooling washing tower, and the furnace valve is located on a third pipeline communicating the second pipeline with the outside, and the method includes:
step S11, controlling the process valve to be closed, and opening the furnace baking valve to bake the reaction furnace;
for example, fig. 2 is a schematic structural diagram of a first half of a sulfur-containing waste treatment system according to an embodiment of the present invention. As shown in fig. 2, the sulfur-containing waste treatment system includes: the system comprises a reaction furnace 201, an air cooling tower 202, a cooling washing tower 203, a drying tower 204, an evaporation concentration device 205, an air blower 206, a filter 207, a heat exchanger 208, a steam superheater 209, an electric demister 210, a drying tower 211, an air cooling tower circulating pump 212, a primary washing circulating pump 213, a secondary washing circulating pump 214, a circulating water cooler 215, a drying tower concentrated acid circulating pump 216 and a drying tower cooler 217, and further comprises a heating valve 218, a process valve 219 and a drying furnace valve 220.
When the oven valve 220 is opened, the medium used for the oven can be discharged to the outside through the third pipe, and the medium used for the oven cannot enter the subsequent equipment of the sulfur-containing waste treatment system due to the closing of the process valve 219.
Step S12, when the oven is finished, controlling the oven valve to close and the process valve to open;
for example, after the oven is completed, the oven valve 220 is closed and the process valve 219 is opened, so that the first half of the sulfur-containing waste treatment system is ready for the process flow, so that the sulfur-containing waste can enter the subsequent equipment of the sulfur-containing waste treatment system through the second pipeline for further treatment while the process flow is being performed, and is not discharged to the outside through the third pipeline.
The oven valve is located on a third pipeline which is communicated with the second pipeline (between the air cooling tower 202 and the cooling washing tower 203) and the outside, can be used in the case of sulfur-containing and acid gas-containing fuels, and is not limited to the prior art which can only use clean natural gas and liquefied gas. Meanwhile, the corrosion of the valve arranged in front of the air cooling tower 202 can be prevented, and the oven valve can be made of a plastic lining valve made of a common material without adopting a high-temperature resistant stainless steel valve.
Step S13, controlling the temperature-raising valve to be closed so as to raise the temperature of the catalyst in the converter;
for example, the heating valve 218 is controlled to close so that the heating medium does not enter the first half of the sulfur-containing waste treatment system.
And step S14, controlling the temperature rising valve to be opened when the temperature rising of the catalyst in the converter is finished so as to carry out the process flow.
For example, after the temperature rise is completed, the temperature rise valve 218 is controlled to be opened, so that the sulfur-containing waste can enter the latter half of the sulfur-containing waste treatment system through the first pipeline for further treatment during the process flow.
Specifically, detailed embodiments of step S13 and step S14 will be described in detail below.
Referring to step S13, before the process flow is performed, a start-up temperature rise is required, and fig. 3 is a flowchart of a start-up temperature rise method of a sulfur-containing waste treatment system according to an embodiment of the present invention. As shown in fig. 3, the sulfurous waste treatment system includes a blower, a warming furnace, a converter, a warming line connected between the blower, the warming furnace, and the converter, and a first valve provided on the warming line, the method including:
step S31, controlling the blower and the warming furnace to operate;
for example, the blower may operate to send a medium for heating into the warming furnace, the warming furnace may operate to heat the medium, the medium may be air, and the warming furnace may be an oil furnace or an electric heating furnace, which is not limited in this respect;
step S32 of controlling the first valve to be opened so that the medium heated by the heating furnace circulates among the blower, the heating furnace, and the converter through the heating line;
for example, the first valve may be provided at any position of the warming conduit as long as the entire warming conduit is opened and the warming conduit is closed. The first valve is opened, so that the whole heating pipeline can be conducted, and the medium heated by the heating furnace can circulate in the blower, the heating furnace and the converter;
step S33, detecting the temperature of each layer inlet of the converter;
for example, multiple catalyst beds may be provided in the converter, such as by stacking the catalyst using a stainless steel mesh on a baffle having a plurality of small holes. When the temperature of each layer of inlet of the converter reaches the requirement, the temperature of the catalyst can be determined to reach the start-up temperature. A temperature sensor may be used to detect the temperature.
And step S34, when the temperatures of the inlets of the layers of the converter are all higher than the preset temperature, controlling the first valve to close so as to avoid the overtemperature at the temperature rising stage.
For example, when the temperature of the inlet of each layer of the converter is required, the converter can be started. At this time, the heating pipeline needs to be blocked, so that the process gas and the liquid are prevented from flowing in the heating pipeline to influence the normal process flow. In addition, when the temperature of each layer of inlet of the converter reaches the requirement, the temperature rise is finished, and the temperature rise furnace can be controlled to stop running at the moment. As for the blower which is a device required to be used in the normal process flow, the blower can be stopped at the moment or not.
By adopting the temperature rising method, air or fuel oil can be directly used, process gas and liquid are not needed, and the temperature rising method only needs to circulate in the converter and corresponding temperature rising equipment, so that the temperature rising time is greatly saved, and whether the temperature rising is finished or not is judged by detecting the temperature of each layer of the converter, so that the temperature rising control is more accurate.
Fig. 4 is a flowchart of a method for increasing temperature during start-up of a sulfur-containing waste treatment system according to another embodiment of the present invention. As shown in fig. 4, the sulfurous waste treatment system further includes a process line connected between the blower, the warming furnace, and the converter, and a second valve provided on the process line, the method further comprising: controlling the second valve to close while controlling the first valve to open; and controlling the second valve to be opened when the first valve is controlled to be closed so as to carry out a normal process flow.
For example, the process pipeline is a pipeline used by the sulfur-containing waste treatment system during normal process flow. The second valve may be located at any position on the process line, as long as it conducts the process line when open and blocks the process line when closed. It can be understood that, because the equipment used during temperature rise before start-up is partially the same as the equipment used during normal process flow, the process pipeline can be partially overlapped with the temperature rise pipeline, namely, a part of pipeline is the process pipeline and the temperature rise pipeline. In this regard, the first valve and the second valve may be provided in plurality to ensure the communication and blocking of the process line and the temperature rise line as described above.
Fig. 5 is a schematic structural view of the latter half of the sulfur-containing waste treatment system according to an embodiment of the present invention. As shown in fig. 5, the latter half of the sulfur-containing waste treatment system further includes an external first heat exchanger 104, an external second heat exchanger 105, a multistage absorption tower 106, a first heat exchanger 107, a second heat exchanger 114, a first absorption cycle acid cooler 108, a second absorption cycle acid cooler 109, a first absorption cycle pump 110, a second absorption cycle pump 111, a first internal heat exchanger 112, and a second internal heat exchanger 113, and other devices not closely related to startup temperature rise are not shown. The dotted line represents a temperature rising pipeline, the solid line represents a process pipeline, and the arrow represents the flowing direction of the medium during temperature rising, wherein the medium flows from the blower 101 to the temperature rising furnace 102, then enters the first heat exchanger 104, then enters the converter 103, then enters the second heat exchanger 105, and finally returns to the blower 101 through the second heat exchanger 114 to complete the circulation.
It can be seen that, during the temperature rise, the medium circulates in the blower 101, the temperature rise furnace 102 and the converter 103, and does not enter the multistage absorption tower 106, and the normal process flow is not affected although the temperature rise pipeline and the process pipeline are partially overlapped. While the first valves may be provided, for example, at 11, 12, 13 and 14 in the figures and the second valves at 21, 22, 23, 24, 25 and 26 in the figures. When the temperature rises before the start of work, the first valves are all opened, and the second valves are all closed; during normal process flow, the first valves are both closed and the second valves are both open. It is understood that the connection mode of the warming pipeline and the arrangement positions of the first valve and the second valve shown in the figure are examples, other connection modes can be adopted for the warming pipeline, and the first valve and the second valve can be arranged at other positions as long as the purposes and functions of the warming pipeline, the first valve and the second valve can be realized.
In step S14, the process flow is performed by first burning the sulfur-containing waste in a reaction furnace. Fig. 6 is a flowchart of a method for controlling combustion in a reactor of the sulfur-containing waste treatment system according to an embodiment of the present invention. As shown in fig. 6, the reaction furnace includes a first air inlet provided at a front end of the reaction furnace, the reaction furnace further includes a second air inlet provided at an end of the reaction furnace, and the method includes:
step S61 of detecting oxygen amounts at positions of the first air inlet and the second air inlet;
for example, oxygen sensors may be provided at the first air inlet and the second air inlet to detect the amount of oxygen at the location of the first air inlet and the second air inlet.
Step S62, controlling air to enter from the first air inlet so that the oxygen amount at the position of the first air inlet is a first oxygen amount;
for example, the air may be supplied/reduced at the first air inlet with reference to the oxygen amount at the position of the first air inlet so that the oxygen amount at the position of the first air inlet reaches a first oxygen amount, for example, 60% of the theoretical oxygen amount of the normal combustion process of the sulfur-containing waste, so that the sulfur-containing waste is oxygen-lean-burned, thereby causing a substance containing nitrogen element therein, for example, (NH)4)2SO4And/or NH4HSO4The reaction is carried out with reduced production of nitrogen oxides.
And step S63, controlling the air to enter from the second air inlet so as to enable the oxygen amount at the position of the second air inlet to be a second oxygen amount, wherein the second oxygen amount is the theoretical oxygen amount of the normal combustion process of the sulfur-containing waste, and the first oxygen amount is less than the second oxygen amount.
For example, in order to complete the normal combustion process, air is supplied to the second air inlet at the end of the reaction furnace so that the oxygen amount at the position of the second air inlet reaches a second oxygen amount, for example, the theoretical oxygen amount of the normal combustion process of the sulfur-containing waste, so that the sulfur-containing waste completes the normal combustion process. Since the amount of nitrogen oxides produced is temperature dependent, i.e., increases with increasing temperature, the amount of nitrogen oxides produced decreases when the temperature at the end of the reactor remote from the flame core is low, although the amount of oxygen is sufficient.
By adopting the method, the content of sulfur dioxide in the process gas of the reaction furnace can be improved due to the reduction of nitrogen oxides, and the normal process can not be influenced due to the completion of the expected combustion process.
Fig. 7 is a flowchart of a method for controlling combustion in a reactor of the sulfur-containing waste treatment system according to an embodiment of the present invention. As shown in fig. 7, the reaction furnace further includes a third air inlet provided at a middle portion of the reaction furnace, and the method includes:
step S71 of detecting oxygen amounts at positions of the first air inlet and the second air inlet;
step S72, controlling air to enter from the first air inlet so that the oxygen amount at the position of the first air inlet is a first oxygen amount;
for example, the embodiments of steps S71-72 are similar to the embodiments of steps S71-72 described above and will not be repeated here.
Step S73, controlling the air to enter from the third air inlet so that the oxygen amount at the position of the third air inlet is a third oxygen amount;
for example, embodiments of the present invention may also provide a case where the third air inlet is provided, and the oxygen amount at the position of the third air inlet is made to be a third oxygen amount, and the third oxygen amount may be, for example, 95% of the second oxygen amount. The sulfur-containing waste is still burned oxygen-lean, thereby allowing substances containing nitrogen elements therein, such as (NH)4)2SO4And/or NH4HSO4The reaction is carried out with reduced production of nitrogen oxides.
And step S74, controlling the air to enter from the second air inlet so as to enable the oxygen amount at the position of the second air inlet to be a second oxygen amount, wherein the second oxygen amount is the theoretical oxygen amount of the normal combustion process of the sulfur-containing waste, the first oxygen amount is smaller than the second oxygen amount, and the third oxygen amount is smaller than the second oxygen amount.
For example, likewise, to complete the normal combustion process, air is added to the second air inlet at the end of the reactor to bring the amount of oxygen at the location of the second air inlet to a second amount of oxygen to complete the normal combustion process of the sulfur-containing waste.
It is to be understood that although the above embodiment has been described with two air inlets and three air inlets, it is also possible to provide more air inlets to the reaction furnace, for example, a plurality of third air inlets, and to use these air inlets to provide air simultaneously, as long as the oxygen at the position of the air inlet at the end is the theoretical oxygen for the normal combustion process of the sulfur-containing waste, and the oxygen at the positions of the other air inlets are less than the theoretical oxygen for the normal combustion process of the sulfur-containing waste, and the detailed description thereof is omitted here.
Fig. 8 is a schematic structural diagram of a reaction furnace according to an embodiment of the present invention. As shown in fig. 8, air enters the reaction furnace from the second air inlet 850 and the first air inlet 840 in a tangential direction of a cross-sectional circle of the reaction furnace.
As shown in fig. 8, the reactor of the present invention includes a furnace 810 for performing a combustion reaction on a mixed solution of sulfur-containing waste, the furnace 810 has a cylindrical structure, the reactor is provided with a fuel gas inlet 820 and a process gas outlet 830 which are communicated with the furnace 810, the fuel gas inlet 820 and the process gas outlet 830 are arranged at two ends of the furnace 810 at intervals along an axial direction of the furnace 810, and the fuel gas inlet 820 is configured to provide a fuel gas flowing along the axial direction of the furnace 810 into the furnace 810; the reaction furnace includes an air supply mechanism configured to provide air into the furnace 810 that flows along a circumferential direction of an inner wall of the furnace 810.
In the present invention, since the fuel gas can enter the furnace 810 through the fuel gas inlet 820 and flow along the axial direction of the furnace 810, and at the same time, the air enters the furnace from the second air inlet 850 and the first air inlet 840 along the tangential direction of the cross-sectional circle of the furnace, so that the air flows along the circumferential direction of the inner wall of the furnace 810, which causes the mixed gas of the fuel gas and the air to flow toward the process gas outlet 830 in a spiral form (as shown in fig. 8), the residence time of the mixed gas in the furnace 810 during the flow in the spiral form can be more abundant, so that the mixed gas can sufficiently perform the combustion reaction with the sulfur-containing waste mixed liquid, thereby improving the combustion efficiency of the furnace, and since the mixed gas can remain in the furnace 810 for a longer time, the distance between the fuel gas inlet 820 and the process gas outlet 830 can be relatively shortened, so that the reaction furnace of the present invention can be miniaturized.
An example of a process flow for a sulfur-containing waste treatment system as described above in fig. 2 and 5 is provided below:
assuming that the acid production scale is 5.9t/h, the product is 98 wt% concentrated sulfuric acid. The chlorine-containing waste sulfuric acid 1 produced by the polytetrahydrofuran production plant has a moisture content of 50 wt% and contains less impurities, and is concentrated to 85 wt% by evaporation before entering the reaction furnace 201. The waste sulfuric acid concentrated by the evaporation concentration device 205 is pressurized to 0.7MPa and sprayed into the reaction furnace 201. The reaction temperature in the reaction furnace 201 is 1050 ℃. 70% of the heat is provided by the fuel gas (hydrogen sulfide acid gas), and 30% of the insufficient heat is supplemented by the auxiliary fuel natural gas. Air containing 21mol percent of oxygen is used for combustion supporting. The normal temperature air directly enters the reaction furnace 201 without heating the air inlet blower 206. 95 percent of the total combustion air needed by the complete combustion of all the fuel enters a burner in front of the reaction furnace 201, and the rest 5 percent of the total combustion air enters a secondary air supply port at the tail end of the reaction furnace 201. The amount of oxygen remaining in the hot process gas 10 exiting the furnace was 4 mol%. The residence time of the process gas in the furnace is more than or equal to 4 s.
The high-temperature process gas discharged from the furnace passes through a filter 207, such as a high-temperature resistant cyclone filter, after metal dust is removed, the high-temperature process gas without solids enters a heat exchanger (waste heat boiler) 208 for heat recovery, and 5t of superheated steam with the pressure of 3.5MPa is produced per hour. The saturated steam is heat exchanged with a small portion of the solids-free high temperature process gas in steam superheater 209 to obtain superheated steam at 350 c at 3.5 MPa.
The process gas using the heat energy enters the air cooling tower 202 to be rapidly cooled through adiabatic humidification, and the gas temperature is rapidly cooled from 320-350 ℃ to 70-75 ℃. Enters a multi-stage filler cooling washing tower 203, is washed by a circulating water cooler to be cooled to 41 ℃, enters a secondary filler for washing, does not carry out heat exchange, and only washes process gas. The process gas after the secondary washing is subjected to sulfur trioxide acid mist removal by an electric demister 210 and then enters a drying tower 204. Drying by adopting concentrated sulfuric acid with the weight percent of 92.5-93.5.
The dried process gas has 9 mol% of sulfur dioxide content, is pressurized to 18Kpa by the blower 101, and then sequentially enters the external first heat exchanger 104 and the second internal heat exchanger 113 for heat exchange. The temperature of the first catalyst layer reaction process gas in the converter 103 is up to 400-410 ℃. After the temperature of the reacted process gas reaches 600-610 ℃, the reacted process gas exchanges heat with the tube side gas of the second internal heat exchanger 113 of the converter 103, so that the process gas temperature of the second catalyst layer reaches 460-470 ℃ to start the reaction. The reacted process gas containing sulfur trioxide exchanges heat with the tube-side gas of the first internal heat exchanger 114, so that the process gas temperature in the third catalyst layer reaches 440 ℃ to 450 ℃ to start the reaction. Due to the relatively high sulphur dioxide concentration of the process gas. The temperature of the process gas which is discharged from the third catalyst layer after the primary conversion is 220 ℃, and the temperature of the process gas is controlled to be more than or equal to 150 ℃ by the second heat exchanger 114 and enters the multistage absorption tower 106. The heat is recovered to improve the feed water temperature of the boiler and the steam yield. The conversion rate of primary conversion is 95-96%. Absorption was carried out with 98 wt% sulfuric acid. The absorption rate is 99.99%. The fully absorbed process gas enters the outer second heat exchanger 105 and the first inner heat exchanger 112 in sequence for heat exchange. The reaction process gas temperature of the fourth catalyst layer reaches 410-415 ℃ to start the reaction, and the reacted process gas containing sulfur trioxide exchanges heat through the external second heat exchanger 105. The temperature of the process gas which is converted twice and then is discharged from the fourth catalyst layer is 180 ℃, and the temperature of the process gas is controlled to be more than or equal to 150 ℃ by the second heat exchanger 114 and then enters the multistage absorption tower 106. After reaction of four catalyst layersThe total conversion rate is 99.92 percent, and the temperature of the process gas discharged from the converter 103 is controlled to be more than or equal to 130 ℃ and enters the multistage absorption tower 106. Absorption was carried out with 98 wt% sulfuric acid. The absorption rate is 99.99%. The absorbed process gas is discharged to realize SO2The concentration is less than or equal to 100mg/NM3NOx concentration is less than or equal to 100mg/NM3Acid mist is less than or equal to 5mg/NM3The concentration of the particles is less than or equal to 30mg/NM3。
It is to be understood that the above examples of the process flow are provided only for the purpose of more clearly describing the present invention, and the numerical values and the like are not limited thereto.
Fig. 9 is a block diagram showing a control device of the sulfur-containing waste treatment system according to an embodiment of the present invention. As shown in fig. 9, the system for treating sulfur-containing waste includes a reaction furnace, an air cooling tower, a cooling washing tower, a drying tower, a blower, a converter, a temperature raising valve, a process valve, and a furnace valve, where the temperature raising valve is located on a first pipeline between the drying tower and the blower, the process valve is located on a second pipeline between the air cooling tower and the cooling washing tower, and the furnace valve is located on a third pipeline communicating the second pipeline with the outside, and the apparatus includes: the system comprises a furnace baking control unit 1, a temperature rise control unit 2 and a process control unit 3, wherein the furnace baking control unit 1 is used for controlling the process valve to be closed, and the furnace baking valve is opened so as to bake the reaction furnace; when the oven is finished, controlling the oven valve to be closed, and opening the process valve; the temperature rise control unit 2 is used for controlling the temperature rise valve to be closed so as to raise the temperature of the catalyst in the converter; the process control unit 3 is used for controlling the temperature-rising valve to be opened when the temperature rising of the catalyst in the converter is finished so as to carry out the process flow.
Preferably, the system for treating sulfur-containing waste further comprises a temperature raising furnace, a temperature raising pipeline connected among the blower, the temperature raising furnace and the converter, and a first valve disposed on the temperature raising pipeline, wherein the temperature raising control unit 2 comprises: the device comprises a device control unit 4, a valve control unit 5 and a first detection unit 6, wherein the device control unit 4 is used for controlling the operation of the blower and the operation of the heating furnace; the valve control unit 5 is used for controlling the first valve to be opened so that the medium heated by the heating furnace circulates in the blower, the heating furnace and the converter through the heating pipeline; the first detection unit 6 is used for detecting the temperature of each layer inlet of the converter; and the valve control unit 5 is also used for controlling the first valve to be closed when the temperature of each layer of inlet of the converter is higher than the preset temperature so as to avoid overtemperature at the temperature rise stage.
Preferably, the sulfurous waste treatment system further comprises a process line connected between the blower, the warming furnace, and the converter, and a second valve provided on the process line, and the valve control unit 5 is further configured to: controlling the second valve to close while controlling the first valve to open; controlling the second valve to open while controlling the first valve to close.
Preferably, the reaction furnace includes a first air inlet provided at a front end of the reaction furnace, the reaction furnace further includes a second air inlet provided at a rear end of the reaction furnace, and the process control unit 3 includes: a second detection unit 7 and an intake control unit 8, wherein the second detection unit 7 is used for detecting oxygen amounts at the positions of the first air inlet and the second air inlet; the air inlet control unit 8 is used for controlling air to enter from the first air inlet so that the oxygen amount at the position of the first air inlet is a first oxygen amount; control the air is followed second air inlet gets into to make the oxygen content in second air inlet's position department is second oxygen volume, second oxygen volume is the theoretical oxygen volume of the normal combustion process of sulphur waste, first oxygen volume is less than second oxygen volume.
Preferably, air enters the reactor from the second air inlet and the first air inlet in a tangential direction of a cross-sectional circle of the reactor.
The embodiment of the invention also provides a sulfur-containing waste treatment system, which comprises the control device of the sulfur-containing waste treatment system.
The embodiments of the control device and the machine-readable storage medium for the sulfur-containing waste treatment system described above are similar to the embodiments of the control method for the sulfur-containing waste treatment system described above, and are not repeated herein.
The control device of the sulfur-containing waste treatment system comprises a processor and a memory, wherein the oven control unit, the temperature rise control unit, the process control unit, the equipment control unit, the valve control unit, the first detection unit, the second detection unit, the air inlet control unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more than one, and the sulfur-containing waste treatment system is controlled by adjusting the kernel parameters.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present invention provides a storage medium having a program stored thereon, the program implementing the method for controlling a sulfur-containing waste treatment system when being executed by a processor.
The embodiment of the invention provides a processor, which is used for running a program, wherein the program is used for executing the control method of the sulfur-containing waste treatment system during running.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein the processor executes the program and realizes the following steps:
the sulfur-containing waste treatment system comprises a reaction furnace, an air cooling tower, a cooling washing tower, a drying tower, a blower and a converter, wherein sulfur-containing waste sequentially passes through the reaction furnace, the air cooling tower, the cooling washing tower, the drying tower, the blower and a converter, and further comprises a temperature rising valve, a process valve and a furnace drying valve, wherein the temperature rising valve is positioned on a first pipeline between the drying tower and the blower, the process valve is positioned on a second pipeline between the air cooling tower and the cooling washing tower, and the furnace drying valve is positioned on a third pipeline communicating the second pipeline with the outside, and the method comprises the following steps: controlling the process valve to be closed, and opening the furnace baking valve to bake the reaction furnace; when the oven is finished, controlling the oven valve to be closed, and opening the process valve; controlling the temperature-raising valve to be closed so as to raise the temperature of the catalyst in the converter; and when the temperature rise of the catalyst in the converter is finished, controlling the temperature rise valve to be opened so as to carry out a process flow.
Preferably, the system for treating sulfur-containing waste further comprises a temperature raising furnace, a temperature raising pipeline connected among the blower, the temperature raising furnace and the converter, and a first valve arranged on the temperature raising pipeline, wherein the step of raising the temperature of the catalyst in the converter comprises: controlling the blower and the heating furnace to operate; controlling the first valve to be opened so that the medium heated by the heating furnace circulates among the blower, the heating furnace, and the converter through the heating line; detecting the temperature of each layer inlet of the converter; and when the temperature of each layer of inlet of the converter is higher than the preset temperature, controlling the first valve to be closed so as to avoid overtemperature at the temperature rise stage.
Preferably, the sulfurous waste treatment system further includes a process line connected between the blower, the warming furnace, the converter, and a second valve provided on the process line, the method further comprising: controlling the second valve to close while controlling the first valve to open; controlling the second valve to open while controlling the first valve to close.
Preferably, the reaction furnace comprises a first air inlet arranged at the front end of the reaction furnace, the reaction furnace further comprises a second air inlet arranged at the tail end of the reaction furnace, and the process flow comprises the following steps: detecting an amount of oxygen at the location of the first air inlet and the second air inlet; controlling air entering from the first air inlet such that an amount of oxygen at a location of the first air inlet is a first amount of oxygen; control the air is followed second air inlet gets into to make the oxygen content in second air inlet's position department is second oxygen volume, second oxygen volume is the theoretical oxygen volume of the normal combustion process of sulphur waste, first oxygen volume is less than second oxygen volume.
Preferably, air enters the reactor from the second air inlet and the first air inlet in a tangential direction of a cross-sectional circle of the reactor.
The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device:
the sulfur-containing waste treatment system comprises a reaction furnace, an air cooling tower, a cooling washing tower, a drying tower, a blower and a converter, wherein sulfur-containing waste sequentially passes through the reaction furnace, the air cooling tower, the cooling washing tower, the drying tower, the blower and a converter, and further comprises a temperature rising valve, a process valve and a furnace drying valve, wherein the temperature rising valve is positioned on a first pipeline between the drying tower and the blower, the process valve is positioned on a second pipeline between the air cooling tower and the cooling washing tower, and the furnace drying valve is positioned on a third pipeline communicating the second pipeline with the outside, and the method comprises the following steps: controlling the process valve to be closed, and opening the furnace baking valve to bake the reaction furnace; when the oven is finished, controlling the oven valve to be closed, and opening the process valve; controlling the temperature-raising valve to be closed so as to raise the temperature of the catalyst in the converter; and when the temperature rise of the catalyst in the converter is finished, controlling the temperature rise valve to be opened so as to carry out a process flow.
Preferably, the system for treating sulfur-containing waste further comprises a temperature raising furnace, a temperature raising pipeline connected among the blower, the temperature raising furnace and the converter, and a first valve arranged on the temperature raising pipeline, wherein the step of raising the temperature of the catalyst in the converter comprises: controlling the blower and the heating furnace to operate; controlling the first valve to be opened so that the medium heated by the heating furnace circulates among the blower, the heating furnace, and the converter through the heating line; detecting the temperature of each layer inlet of the converter; and when the temperature of each layer of inlet of the converter is higher than the preset temperature, controlling the first valve to be closed so as to avoid overtemperature at the temperature rise stage.
Preferably, the sulfurous waste treatment system further includes a process line connected between the blower, the warming furnace, the converter, and a second valve provided on the process line, the method further comprising: controlling the second valve to close while controlling the first valve to open; controlling the second valve to open while controlling the first valve to close.
Preferably, the reaction furnace comprises a first air inlet arranged at the front end of the reaction furnace, the reaction furnace further comprises a second air inlet arranged at the tail end of the reaction furnace, and the process flow comprises the following steps: detecting an amount of oxygen at the location of the first air inlet and the second air inlet; controlling air entering from the first air inlet such that an amount of oxygen at a location of the first air inlet is a first amount of oxygen; control the air is followed second air inlet gets into to make the oxygen content in second air inlet's position department is second oxygen volume, second oxygen volume is the theoretical oxygen volume of the normal combustion process of sulphur waste, first oxygen volume is less than second oxygen volume.
Preferably, air enters the reactor from the second air inlet and the first air inlet in a tangential direction of a cross-sectional circle of the reactor.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (12)
1. A control method of a sulfur-containing waste treatment system is characterized in that the sulfur-containing waste treatment system comprises a reaction furnace, an air cooling tower, a cooling washing tower, a drying tower, a blower and a converter, wherein the sulfur-containing waste sequentially passes through the reaction furnace, the air cooling tower, the cooling washing tower, the drying tower, the blower and the converter, and further comprises a temperature rise valve, a process valve and a furnace valve, the temperature rise valve is positioned on a first pipeline between the drying tower and the blower, the process valve is positioned on a second pipeline between the air cooling tower and the cooling washing tower, and the furnace valve is positioned on a third pipeline which is communicated with the second pipeline and the outside, the method comprises the following steps:
controlling the process valve to be closed, and opening the furnace baking valve to bake the reaction furnace;
when the oven is finished, controlling the oven valve to be closed, and opening the process valve;
controlling the temperature-raising valve to be closed so as to raise the temperature of the catalyst in the converter;
and when the temperature rise of the catalyst in the converter is finished, controlling the temperature rise valve to be opened so as to carry out a process flow.
2. The method of controlling a sulfur-containing waste treatment system as set forth in claim 1, further comprising a temperature raising furnace, a temperature raising line connected between said blower, said temperature raising furnace and said converter, and a first valve provided on said temperature raising line, wherein said raising the temperature of the catalyst in said converter comprises:
controlling the blower and the heating furnace to operate;
controlling the first valve to be opened so that the medium heated by the heating furnace circulates among the blower, the heating furnace, and the converter through the heating line;
detecting the temperature of each layer inlet of the converter;
and when the temperature of each layer of inlet of the converter is higher than the preset temperature, controlling the first valve to be closed so as to avoid overtemperature at the temperature rise stage.
3. The method of controlling a sulfur-containing waste treatment system as set forth in claim 2, further comprising a process line connected between said blower, said temperature-raising furnace, said converter, and a second valve provided on said process line, the method further comprising:
controlling the second valve to close while controlling the first valve to open;
controlling the second valve to open while controlling the first valve to close.
4. The method of claim 1, wherein the reactor includes a first air inlet disposed at a front end of the reactor, wherein the reactor further includes a second air inlet disposed at a rear end of the reactor, and wherein the process comprises:
detecting an amount of oxygen at the location of the first air inlet and the second air inlet;
controlling air entering from the first air inlet such that an amount of oxygen at a location of the first air inlet is a first amount of oxygen;
control the air is followed second air inlet gets into to make the oxygen content in second air inlet's position department is second oxygen volume, second oxygen volume is the theoretical oxygen volume of the normal combustion process of sulphur waste, first oxygen volume is less than second oxygen volume.
5. The method of controlling a sulfur-containing waste treatment system as set forth in claim 4 wherein air enters said reactor from said second air inlet and said first air inlet in a direction tangential to a cross-sectional circle of said reactor.
6. The control device of the sulfur-containing waste treatment system is characterized by comprising a reaction furnace, an air cooling tower, a cooling washing tower, a drying tower, a blower and a converter, wherein the reaction furnace, the air cooling tower, the cooling washing tower, the drying tower, the blower and the converter sequentially pass through the sulfur-containing waste treatment system, and further comprising a warming valve, a process valve and a drying furnace valve, wherein the warming valve is positioned on a first pipeline between the drying tower and the blower, the process valve is positioned on a second pipeline between the air cooling tower and the cooling washing tower, and the drying furnace valve is positioned on a third pipeline communicating the second pipeline with the outside, and the device comprises:
a furnace control unit, a temperature rise control unit and a process control unit, wherein,
the furnace baking control unit is used for controlling the process valve to be closed and the furnace baking valve to be opened so as to bake the reaction furnace; when the oven is finished, controlling the oven valve to be closed, and opening the process valve;
the temperature rise control unit is used for controlling the temperature rise valve to be closed so as to raise the temperature of the catalyst in the converter;
and the process control unit is used for controlling the heating valve to be opened when the temperature of the catalyst in the converter is raised, so as to carry out a process flow.
7. The control device of a sulfur-containing waste disposal system as set forth in claim 6, further comprising a temperature raising furnace, a temperature raising pipe connected between said blower, said temperature raising furnace and said converter, and a first valve provided on said temperature raising pipe, wherein said temperature raising control unit comprises:
an equipment control unit, a valve control unit and a first detection unit, wherein,
the equipment control unit is used for controlling the operation of the blower and the heating furnace;
the valve control unit is used for controlling the first valve to be opened so that the medium heated by the heating furnace circulates in the blower, the heating furnace and the converter through the heating pipeline;
the first detection unit is used for detecting the temperature of each layer of inlet of the converter;
and the valve control unit is also used for controlling the first valve to be closed when the temperature of each layer of inlet of the converter is higher than the preset temperature so as to avoid overtemperature at the temperature rise stage.
8. The control apparatus for a sulfur-containing waste treatment system as set forth in claim 7, further comprising a process line connected between said blower, said warming furnace, said converter, and a second valve provided on said process line, said valve control unit further for:
controlling the second valve to close while controlling the first valve to open;
controlling the second valve to open while controlling the first valve to close.
9. The control apparatus for a sulfur-containing waste disposal system as set forth in claim 6, wherein said reaction furnace includes a first air inlet provided at a front end of said reaction furnace, and a second air inlet provided at a rear end of said reaction furnace, and said process control unit includes:
a second detection unit and an intake air control unit, wherein,
the second detection unit is used for detecting oxygen amount at the positions of the first air inlet and the second air inlet;
the air inlet control unit is used for controlling air to enter from the first air inlet so that the oxygen amount at the position of the first air inlet is a first oxygen amount; control the air is followed second air inlet gets into to make the oxygen content in second air inlet's position department is second oxygen volume, second oxygen volume is the theoretical oxygen volume of the normal combustion process of sulphur waste, first oxygen volume is less than second oxygen volume.
10. The control apparatus for a sulfur-containing waste treatment system as set forth in claim 9 wherein air enters said reactor from said second air inlet port and said first air inlet port in a direction tangential to a cross-sectional circle of said reactor.
11. A sulfur-containing waste treatment system comprising the control device of the sulfur-containing waste treatment system according to any one of claims 6 to 10.
12. A machine-readable storage medium having stored thereon instructions for causing a machine to perform the method of controlling the sulfur-containing waste treatment system of any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2020108418745 | 2020-08-20 | ||
| CN202010841874 | 2020-08-20 |
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| CN114076320A true CN114076320A (en) | 2022-02-22 |
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| CN202110736744.XA Pending CN114076317A (en) | 2020-08-20 | 2021-06-30 | Sulfur-containing waste system, reaction furnace combustion control method and device and storage medium |
| CN202110736752.4A Pending CN114074925A (en) | 2020-08-20 | 2021-06-30 | Method for burning sulfur-containing waste and method for preparing sulfuric acid from sulfur-containing waste |
| CN202110739603.3A Active CN114074926B (en) | 2020-08-20 | 2021-06-30 | Converter and sulfur-containing waste treatment system |
| CN202110736743.5A Pending CN114162790A (en) | 2020-08-20 | 2021-06-30 | Dust-removing heat-exchanging device, dust-removing heat-exchanging method of dust-containing high-temperature flue gas and method for preparing sulfuric acid from sulfur-containing waste |
| CN202110736754.3A Pending CN114076318A (en) | 2020-08-20 | 2021-06-30 | Sulfur-containing waste treatment system, start-up temperature rise method, device and storage medium |
| CN202110739636.8A Pending CN114076523A (en) | 2020-08-20 | 2021-06-30 | Reaction furnace assembly and sulfur-containing waste treatment system |
| CN202110736751.XA Pending CN114074924A (en) | 2020-08-20 | 2021-06-30 | System and method for preparing sulfuric acid by regenerating sulfur-containing waste |
| CN202121478711.1U Active CN215233316U (en) | 2020-08-20 | 2021-06-30 | Converter and sulfur-containing waste treatment system |
| CN202121483021.5U Active CN215962868U (en) | 2020-08-20 | 2021-06-30 | Cooling absorption tower and sulfur-containing waste treatment system |
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| CN202110736752.4A Pending CN114074925A (en) | 2020-08-20 | 2021-06-30 | Method for burning sulfur-containing waste and method for preparing sulfuric acid from sulfur-containing waste |
| CN202110739603.3A Active CN114074926B (en) | 2020-08-20 | 2021-06-30 | Converter and sulfur-containing waste treatment system |
| CN202110736743.5A Pending CN114162790A (en) | 2020-08-20 | 2021-06-30 | Dust-removing heat-exchanging device, dust-removing heat-exchanging method of dust-containing high-temperature flue gas and method for preparing sulfuric acid from sulfur-containing waste |
| CN202110736754.3A Pending CN114076318A (en) | 2020-08-20 | 2021-06-30 | Sulfur-containing waste treatment system, start-up temperature rise method, device and storage medium |
| CN202110739636.8A Pending CN114076523A (en) | 2020-08-20 | 2021-06-30 | Reaction furnace assembly and sulfur-containing waste treatment system |
| CN202110736751.XA Pending CN114074924A (en) | 2020-08-20 | 2021-06-30 | System and method for preparing sulfuric acid by regenerating sulfur-containing waste |
| CN202121478711.1U Active CN215233316U (en) | 2020-08-20 | 2021-06-30 | Converter and sulfur-containing waste treatment system |
| CN202121483021.5U Active CN215962868U (en) | 2020-08-20 | 2021-06-30 | Cooling absorption tower and sulfur-containing waste treatment system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745654A (en) * | 2012-07-31 | 2012-10-24 | 阳谷祥光铜业有限公司 | Conversion device for acid-making with smoke, system and method for heating conversion device for acid-making with smoke |
| CN204665256U (en) * | 2015-03-02 | 2015-09-23 | 广西日风能源发展有限公司 | Low nox combustion equipment |
| CN109404942A (en) * | 2018-12-19 | 2019-03-01 | 上海广成涂装技术工程有限公司 | A kind of catalytic combustion system self-loopa pre-heating system and its method for organic exhaust gas VOCs processing |
| CN109882869A (en) * | 2019-02-18 | 2019-06-14 | 福建申远新材料有限公司 | A kind of sulfur furnace furnace drying method |
| CN110240123A (en) * | 2019-06-27 | 2019-09-17 | 山东鲁北企业集团总公司 | A method of utilizing rotary kiln incineration sulfur waste sulphur and sulphur-bearing waste solution Sulphuric acid |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063752A (en) * | 1992-03-26 | 1992-08-19 | 清华大学 | Jetting cyclone slag discharging coal combustion method and device |
| JP3557912B2 (en) * | 1998-09-03 | 2004-08-25 | 株式会社日立製作所 | Combustion melting furnace, combustion melting method, and waste heat power generation system |
| CN1238246C (en) * | 2002-12-02 | 2006-01-25 | 南昌有色冶金设计研究院 | Adjustable sulfuric acid conversion heat-exchange process |
| JP2005226847A (en) * | 2004-02-10 | 2005-08-25 | Ebara Corp | Combustion device and method |
| CN100501232C (en) * | 2006-12-25 | 2009-06-17 | 广州迪森热能技术股份有限公司 | Emusified coking-slurry cyclone burner |
| CN101144111A (en) * | 2007-07-02 | 2008-03-19 | 昆明阳光基业股份有限公司 | Technique and combined system for removing dust from steelmaking convertor smoke by dry method and reusing waste heat |
| CN201179403Y (en) * | 2007-08-06 | 2009-01-14 | 山东省冶金设计院有限责任公司 | Heat recovering device and dust removing system with the heat recovering device |
| CN101382387B (en) * | 2008-10-22 | 2011-11-30 | 中国恩菲工程技术有限公司 | Spray gun of side-blown converter for smelting non-ferrous metal |
| SG10201402156TA (en) * | 2009-06-05 | 2014-10-30 | Exxonmobil Upstream Res Co | Combustor systems and methods for using same |
| CN102371108A (en) * | 2010-08-20 | 2012-03-14 | 中国石油化工集团公司 | Method for producing sulfuric acid by oxygen-enriched air incineration of acid gas containing hydrogen sulfide |
| CN201999736U (en) * | 2010-12-28 | 2011-10-05 | 建业庆松集团有限公司 | Temperature rising system of reactor catalyst bed in sulfuric acid transformation system |
| PL2508827T5 (en) * | 2011-04-07 | 2019-05-31 | Linde Ag | Method and device for melting melting stock |
| CN102563690B (en) * | 2012-02-08 | 2014-02-12 | 河南省电力公司电力科学研究院 | Method for controlling emission of nitrogen oxide of coal burning boiler |
| CN103626136A (en) * | 2012-08-23 | 2014-03-12 | 中国石油化工股份有限公司 | Wet method used for preparing sulfuric acid from exhaust gas containing hydrogen sulfide |
| CN203200293U (en) * | 2013-02-04 | 2013-09-18 | 济南环保陶瓷除尘技术研究所 | Converter gas compound purification equipment |
| CN103604117B (en) * | 2013-11-04 | 2015-12-30 | 武汉和信益科技有限公司 | The efficient low nitrogen burning method of the multiple classification of CFBB and combustion system |
| CN203699911U (en) * | 2013-12-17 | 2014-07-09 | 贵州开磷（集团）有限责任公司 | Improved sulfuric acid converter |
| CN104819472B (en) * | 2015-05-25 | 2017-04-26 | 山东百川同创能源有限公司 | Biomass solid waste and hazardous waste combustion gas production system |
| CN105087899B (en) * | 2015-08-26 | 2017-06-23 | 江苏省沙钢钢铁研究院有限公司 | A kind of recuperative heater and its flue gas recycle combustion method |
| CN105148986B (en) * | 2015-09-30 | 2017-10-20 | 西南化工研究设计院有限公司 | Methanol-to-olefin catalyst bed heats up and regenerating unit |
| JP6637293B2 (en) * | 2015-11-11 | 2020-01-29 | 株式会社荏原製作所 | Exhaust gas treatment equipment |
| JP6824642B2 (en) * | 2016-06-14 | 2021-02-03 | Ｊｆｅエンジニアリング株式会社 | Waste incineration equipment and waste incineration method |
| CN106430116B (en) * | 2016-08-24 | 2019-01-04 | 金能科技股份有限公司 | A method of the sulphur-bearing waste solution extracting sulfuric acid generated using coal gas wet oxidation method |
| CN107055488B (en) * | 2017-04-14 | 2023-04-28 | 双盾环境科技有限公司 | Binary adjustable pre-conversion sulfuric acid preparing device for high-concentration sulfur dioxide flue gas |
| CN208887427U (en) * | 2018-08-24 | 2019-05-21 | 江西铜业股份有限公司 | A kind of novel integrated heat exchange converter |
| CN109114544A (en) * | 2018-10-08 | 2019-01-01 | 沈阳工程学院 | A kind of biomass layer combustion boiler with low nitrogen oxide burning technology |
| CN209210852U (en) * | 2018-11-15 | 2019-08-06 | 中冶南方工程技术有限公司 | The purification of converter gas pure dry type and waste heat depth recovery system |
| CN209922897U (en) * | 2019-03-27 | 2020-01-10 | 南京汇仁化工设备有限公司 | Converter built-in heat exchange device |
| CN210332087U (en) * | 2019-06-28 | 2020-04-17 | 济南恒誉环保科技股份有限公司 | Flue gas rapid cooling dust collector |
| CN210664032U (en) * | 2019-08-29 | 2020-06-02 | 中石化南京化工研究院有限公司 | Distributed SO of sulfuric acid device2Conversion heat exchanger |
| CN110694696A (en) * | 2019-09-11 | 2020-01-17 | 河北华丰能源科技发展有限公司 | System and method for vulcanizing heating furnace and drying furnace synchronous hydrogenation catalyst |
| CN110894064A (en) * | 2019-12-24 | 2020-03-20 | 美景（北京）环保科技有限公司 | Device and method for preparing sulfuric acid by cracking and regenerating waste sulfuric acid and/or sulfur-containing waste liquid |
-
2021
- 2021-06-30 CN CN202110736744.XA patent/CN114076317A/en active Pending
- 2021-06-30 CN CN202110736752.4A patent/CN114074925A/en active Pending
- 2021-06-30 CN CN202110739603.3A patent/CN114074926B/en active Active
- 2021-06-30 CN CN202110736743.5A patent/CN114162790A/en active Pending
- 2021-06-30 CN CN202110736754.3A patent/CN114076318A/en active Pending
- 2021-06-30 CN CN202110739636.8A patent/CN114076523A/en active Pending
- 2021-06-30 CN CN202110736751.XA patent/CN114074924A/en active Pending
- 2021-06-30 CN CN202121478711.1U patent/CN215233316U/en active Active
- 2021-06-30 CN CN202121483021.5U patent/CN215962868U/en active Active
- 2021-06-30 CN CN202110739640.4A patent/CN114076320A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745654A (en) * | 2012-07-31 | 2012-10-24 | 阳谷祥光铜业有限公司 | Conversion device for acid-making with smoke, system and method for heating conversion device for acid-making with smoke |
| CN204665256U (en) * | 2015-03-02 | 2015-09-23 | 广西日风能源发展有限公司 | Low nox combustion equipment |
| CN109404942A (en) * | 2018-12-19 | 2019-03-01 | 上海广成涂装技术工程有限公司 | A kind of catalytic combustion system self-loopa pre-heating system and its method for organic exhaust gas VOCs processing |
| CN109882869A (en) * | 2019-02-18 | 2019-06-14 | 福建申远新材料有限公司 | A kind of sulfur furnace furnace drying method |
| CN110240123A (en) * | 2019-06-27 | 2019-09-17 | 山东鲁北企业集团总公司 | A method of utilizing rotary kiln incineration sulfur waste sulphur and sulphur-bearing waste solution Sulphuric acid |
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| Publication number | Publication date |
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| CN215962868U (en) | 2022-03-08 |
| CN114076317A (en) | 2022-02-22 |
| CN114162790A (en) | 2022-03-11 |
| CN114074926B (en) | 2023-08-22 |
| CN114074925A (en) | 2022-02-22 |
| CN114076318A (en) | 2022-02-22 |
| CN114074926A (en) | 2022-02-22 |
| CN114076523A (en) | 2022-02-22 |
| CN215233316U (en) | 2021-12-21 |
| CN114074924A (en) | 2022-02-22 |
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