CN211562448U - Lime kiln desulfurization and denitrification system - Google Patents
Lime kiln desulfurization and denitrification system Download PDFInfo
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- CN211562448U CN211562448U CN201922366680.XU CN201922366680U CN211562448U CN 211562448 U CN211562448 U CN 211562448U CN 201922366680 U CN201922366680 U CN 201922366680U CN 211562448 U CN211562448 U CN 211562448U
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Abstract
The utility model belongs to the technical field of the SOx/NOx control technique and specifically relates to a lime kiln SOx/NOx control system, including the integrative tower of SOx/NOx control, the integrative tower of SOx/NOx control passes through the articulate to the flue, the flue top is provided with active molecule case and desulfurizer case in advance, active molecule case and desulfurizer case in advance are set for active molecule spray gun and desulfurizer spray gun in advance through the pipe connection to inside and the spray gun that is provided with of flue in the flue in advance, still including the limestone slurry case that is equipped with limestone slurry, limestone slurry case passes through the pipe connection to inside and through the nozzle blowout of flue, limestone slurry nozzle sets up between desulfurizer spray gun and joint in advance. The lower side of the desulfurization and denitrification integrated tower is connected to a humidifying system through a pipeline, the humidifying system stretches into the desulfurization and denitrification integrated tower through the pipeline, a humidifying spray gun is arranged in the desulfurization and denitrification integrated tower to spray humidifying liquid, and the humidifying liquid can enable the flue gas to become wet and increase the weight of the flue gas. The joint of the desulfurization and denitrification integrated tower and the joint is provided with a Venturi tube.
Description
Technical Field
The utility model belongs to the technical field of the SOx/NOx control technique and specifically relates to a limekiln SOx/NOx control system.
Background
In a sulfur acid production system, the generated waste gas contains a large amount of sulfur, and in order to enable the sulfur content in the discharged gas to reach the national standard, desulfurization and denitration must be carried out. The traditional desulfurization and denitrification device has poor effect, such as activated carbon desulfurization by water washing, but the proportion of the activated carbon and the side product addition caused by each water washing are not good to treat.
At present, the limestone roasting industry has no mature technology for desulfurization and denitrification, and in order to make up for the environmental protection vacancy of the industry, combine the prior art and innovate to reach the environmental protection requirement, a lime kiln desulfurization and denitrification system is necessary to be designed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a lime kiln SOx/NOx control system can compensate the environmental protection vacancy of current trade, plays environmental protection and consumption reduction's effect.
The utility model discloses a specific technical scheme as follows:
the utility model provides a lime kiln SOx/NOx control system, including the integrative tower of SOx/NOx control, the integrative tower of SOx/NOx control is connected to the flue of the export of the lime stone roasting furnace through the joint, the flue top of the export of the lime stone roasting furnace is provided with the device that is equipped with active molecule and desulfurizer in advance and sets for active molecule case and desulfurizer case in advance, active molecule case and desulfurizer case in advance are connected to the flue inside of the export of the lime stone roasting furnace through the pipeline and are provided with the spray gun in the flue inside of the export of the lime stone roasting furnace and set for active molecule spray gun and desulfurizer spray gun in advance, the active molecule spray gun is.
The outlet temperature of the limestone roasting furnace is 70-160 ℃, flue gas at the outlet of the roasting furnace enters a vertical flue below the roasting furnace, and an active molecule spray gun and an active molecule and a pre-desulfurizer sprayed by a pre-desulfurizer spray gun are arranged on the flue to carry out desulfurization and denitrification treatment on the flue gas.
The utility model discloses a further improvement, still including the limestone slurry case that is equipped with the limestone slurry, the limestone slurry case is connected to the flue inside of the export of the lime stone roasting furnace and through the nozzle blowout through the pipe connection, and limestone slurry nozzle sets up between desulfurizer spray gun in advance and joint.
The limestone slurry is sprayed into the flue to further desulfurize the flue gas.
The utility model discloses a further improvement, the below of the integrative tower of SOx/NOx control is passed through the pipe connection and is to the humidification system, and the humidification system stretches into through the pipeline to the inside of the integrative tower of SOx/NOx control is provided with the humidification spray gun and sprays humidification liquid, and humidification liquid can make the flue gas become wet the weight that has increased the flue gas.
The utility model discloses a further improvement, the integrative tower of SOx/NOx control is provided with venturi with the junction that connects.
The utility model discloses a further improvement, active molecule case and limestone are baked burning furnace and are provided with the feed valve between the flue of export, are provided with the feed valve between the flue of burning furnace export in advance to desulfurizer case and limestone, are provided with the feed valve between the flue of burning furnace export in lime stone thick liquid case and limestone.
The utility model has the advantages that: the utility model discloses in, the lime stone bakes burning furnace exit temperature over a slow fire and is 70 ~ 160 ℃, bakes burning furnace exit flue gas and gets into the perpendicular flue in below over a slow fire, be equipped with the active molecule spray gun on the flue and desulfurizer spray gun in advance, flue gas gets into the straight tube flue after denitration and desulfurization in advance, the lime stone thick liquid that is equipped with on the straight tube flue spouts the system into, later the flue gets into venturi and sprays with higher speed, be equipped with the humidification system behind the venturi, can be with the lime stone thick liquid volume and the weight grow that carry in the flue gas, carry out the abundant reaction with the.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-a desulfurization and denitrification integrated tower, 2-a humidifying system, 3-a humidifying spray gun, 4-a venturi tube, 5-a joint, 6-a limestone slurry box, 7-an active molecule box, 8-an active molecule spray gun, 9-a pre-desulfurizer box and 10-a pre-desulfurizer spray gun.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
Example (b): as shown in figure 1, a lime kiln desulfurization and denitrification system comprises a desulfurization and denitrification integrated tower 1, wherein the desulfurization and denitrification integrated tower 1 is connected to a flue of an outlet of a limestone roasting furnace through a connector 5, a device containing active molecules and a pre-desulfurizer is arranged above the flue of the outlet of the limestone roasting furnace and is set as an active molecule box 7 and a pre-desulfurizer box 9, the active molecule box 7 and the pre-desulfurizer box 9 are connected to the inside of the flue of the outlet of the limestone roasting furnace through pipelines, spray guns are set as an active molecule spray gun 8 and a pre-desulfurizer spray gun 10 in the flue of the outlet of the limestone roasting furnace, the active molecule spray gun 8 is close to the outlet of the limestone roasting furnace, the pre-desulfurizer spray gun 10 is close to the desulfurization and denitrification integrated tower 1, the lime slurry box 6 containing limestone slurry is also included, the lime slurry box 6 is connected to the inside, the limestone slurry nozzle is arranged between the pre-desulfurizer spray gun 10 and the joint 5. The lower side of the integrative tower of SOx/NOx control 1 is connected to humidification system 2 through the pipeline, and humidification system 2 stretches into the inside of integrative tower of SOx/NOx control 1 through the pipeline and is provided with humidification spray gun 3 and sprays humidification liquid, and humidification liquid can make the flue gas wet and increase the weight of flue gas. The joint of the desulfurization and denitrification integrated tower 1 and the joint 5 is provided with a venturi tube 4.
In this embodiment, a feed valve may be further disposed between the active molecular bin 7 and the flue at the outlet of the limestone calcining furnace, a feed valve may be further disposed between the pre-desulfurizer bin 9 and the flue at the outlet of the limestone calcining furnace, and a feed valve may be further disposed between the limestone slurry bin 6 and the flue at the outlet of the limestone calcining furnace.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A lime kiln desulfurization and denitrification system is characterized by comprising a desulfurization and denitrification integrated tower, wherein the desulfurization and denitrification integrated tower is connected to a flue of an outlet of a limestone roasting furnace through a joint, a device containing active molecules and a pre-desulfurizer is arranged above the flue of the outlet of the limestone roasting furnace and is set as an active molecule box and a pre-desulfurizer box, the active molecule box and the pre-desulfurizer box are connected to the inside of the flue of the outlet of the limestone roasting furnace through pipelines, a spray gun is arranged inside the flue of the outlet of the limestone roasting furnace and is set as an active molecule spray gun and a pre-desulfurizer spray gun, the active molecule spray gun is close to the outlet of the limestone roasting furnace, and the pre-desulfurizer spray gun.
2. The lime kiln desulfurization and denitrification system according to claim 1, further comprising a limestone slurry tank containing limestone slurry, the limestone slurry tank being connected to the inside of a flue of a limestone roasting furnace outlet through a pipe and being ejected through a nozzle, the limestone slurry nozzle being provided between the pre-desulfurizer spray gun and the joint.
3. The lime kiln desulfurization and denitrification system according to claim 2, wherein the lower part of the desulfurization and denitrification integrated tower is connected to a humidification system through a pipeline, and the humidification system extends into the desulfurization and denitrification integrated tower through a pipeline and is provided with a humidification spray gun for spraying humidification liquid.
4. The lime kiln desulfurization and denitrification system according to claim 3, wherein a venturi tube is arranged at the joint of the desulfurization and denitrification integrated tower and the joint.
5. The lime kiln desulfurization and denitrification system according to claim 4, wherein a feed valve is arranged between the active molecular box and the flue of the outlet of the limestone roasting furnace, a feed valve is arranged between the pre-desulfurization agent box and the flue of the outlet of the limestone roasting furnace, and a feed valve is arranged between the limestone slurry box and the flue of the outlet of the limestone roasting furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366680.XU CN211562448U (en) | 2019-12-25 | 2019-12-25 | Lime kiln desulfurization and denitrification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366680.XU CN211562448U (en) | 2019-12-25 | 2019-12-25 | Lime kiln desulfurization and denitrification system |
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| Publication Number | Publication Date |
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| CN211562448U true CN211562448U (en) | 2020-09-25 |
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| CN201922366680.XU Active CN211562448U (en) | 2019-12-25 | 2019-12-25 | Lime kiln desulfurization and denitrification system |
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