CN211246086U - Wet desulphurization system - Google Patents
Wet desulphurization system Download PDFInfo
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- CN211246086U CN211246086U CN201922061036.1U CN201922061036U CN211246086U CN 211246086 U CN211246086 U CN 211246086U CN 201922061036 U CN201922061036 U CN 201922061036U CN 211246086 U CN211246086 U CN 211246086U
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Abstract
The utility model relates to an environmental protection equipment technical field, more specifically the wet flue gas desulfurization system that says so, including boiler, stirring storage mechanism and exhaust tower, this wet flue gas desulfurization system still includes reaction mechanism, circulation mechanism and preheats the mechanism, reaction mechanism fixed connection is at the right-hand member of boiler, stirring storage mechanism sets up the rear end at reaction mechanism, circulation mechanism sets up the front end at reaction mechanism, exhaust tower fixed connection is at reaction mechanism's right-hand member, preheat mechanism's regulation fixed connection in exhaust tower, and preheat mechanism and stirring storage mechanism intercommunication, the device is provided with dual desulfurization mode, improves the desulfurization effect to the repacking still is provided with heat recovery and utilizes the device, protects the environment when improving the utilization ratio of the energy.
Description
Technical Field
The utility model relates to an environmental protection equipment technical field, more specifically the wet flue gas desulfurization system that says so.
Background
With the rapid development of the industry in China, the air pollution is more and more serious, sulfur dioxide is a main pollutant of the air pollution, according to statistics of the original environmental protection department 2015, the annual emission amount of industrial sulfur dioxide in China reaches 1556.7 ten thousand tons, and the sulfur dioxide is mainly derived from coal combustion emission. For sulfur dioxide discharged from flue gas, the economic and effective wet flue gas desulfurization method is usually adopted in China to reduce the discharge amount of S02. The wet flue gas desulfurization has the advantages of high desulfurization efficiency, effective purification of flue gas with complex components, removal of various metal and non-metal pollutants and the like, and the process has the advantages of wide application in the field of flue gas treatment, but untreated flue gas desulfurization wastewater has complex components, has large influence on the environment and cannot be directly discharged, so that how to treat the wet flue gas desulfurization wastewater with low cost and high efficiency is a hotspot problem in wastewater research, while the current wet flue gas desulfurization system has a single desulfurization mode and low energy utilization rate.
Disclosure of Invention
The utility model aims at providing a wet flue gas desulfurization system, the device are provided with dual desulfurization mode, improve the desulfurization effect to the repacking still is provided with heat recovery and utilizes the device, protects the environment when improving the utilization ratio of the energy.
The purpose of the utility model is realized through the following technical scheme:
as a further optimization of this technical scheme, the utility model relates to a wet flue gas desulfurization system, including boiler, stirring storage mechanism and exhaust tower, this wet flue gas desulfurization system still includes reaction mechanism, circulation mechanism and preheats the mechanism, reaction mechanism fixed connection is at the right-hand member of boiler, stirring storage mechanism sets up the rear end at reaction mechanism, circulation mechanism sets up the front end at reaction mechanism, exhaust tower fixed connection is at reaction mechanism's right-hand member, preheat mechanism's regulation fixed connection in exhaust tower, and preheat mechanism and stirring storage mechanism intercommunication.
As a further optimization of this technical scheme, the utility model relates to a wet flue gas desulfurization system, the pipe fixed connection of discharging fume is at the right-hand member of boiler, be provided with solenoid valve I on the pipe of discharging fume, reaction mechanism fixed connection is at the right-hand member of the pipe of discharging fume.
As a further optimization of this technical scheme, the utility model relates to a wet flue gas desulfurization system, reaction mechanism includes retort, circulating pipe, induction pipe, stirring rod, fan and air supply pipe, retort fixed connection is at the right-hand member of the pipe of discharging fume, induction pipe fixed connection is in the retort, and induction pipe and the pipe intercommunication of discharging fume, the circulating pipe is provided with two, and two circulating pipes set up the upper and lower both sides at the retort rear end respectively, the fan rotates to be connected in the induction pipe, stirring rod fixed connection is at the lower extreme of fan, air supply pipe fixed connection is in the upper end of retort, stirring storage mechanism fixed connection is in the rear end of retort, circulation mechanism fixed connection is in the rear end of two circulating pipes, the right-hand member at the air supply pipe of exhaust tower fixed connection.
As a further optimization of this technical scheme, the utility model relates to a wet flue gas desulfurization system, circulation mechanism includes water pump, flow divider I, back flow and sprays the ring, water pump fixed connection is at the front end of lower extreme circulating pipe, I fixed connection of flow divider is at the front end of water pump, the both ends of back flow respectively with the last port and the upper end circulating pipe fixed connection of flow divider I, another port and the drainage device of flow divider I are connected, spray the ring regulation and can connect the upper portion in the retort, and spray ring and upper end circulating pipe fixed connection.
As a further optimization of this technical scheme, the utility model relates to a wet flue gas desulfurization system, preheat the mechanism and include spiral pipe, solenoid valve II, flow pipe and flow divider II, solenoid valve II is provided with two, and two solenoid valves II are fixed connection respectively at the both ends of spiral pipe, the both ends of flow pipe respectively with II and II fixed connection of flow divider of lower extreme solenoid valve, a port of flow divider II and the water injection pipe fixed connection of stirring storage mechanism, another port is connected with other equipment.
As a further optimization of this technical scheme, the utility model relates to a wet flue gas desulfurization system, spiral pipe fixed connection are in the exhaust tower, the stirring chamber of stirring storage mechanism passes through pipeline and retort intercommunication.
The utility model relates to a wet flue gas desulfurization system's beneficial effect does: can make the solution that carries out desulfurization reaction keep stirring the state when carrying out desulfurization reaction through the stirring rod, make Ca (OH) 2 in the solution fully react with SO2, and can prevent through the rotation of stirring rod that the precipitate from piling up, the extension equipment life, and can carry out the secondary desulfurization to waste gas through circulation mechanism, very high desulfurization rate, when waste gas through breaking away from after through the gas exhaust tower, the heat of waste gas can heat the water in the spiral pipe, the water after adding can be used for the stirring of quick lime, also can be used for staff's life washing and rinsing, the environmental protection when improving the utilization ratio of the energy.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of the overall structure of a wet desulfurization system of the present invention;
FIG. 2 is a schematic structural view of the boiler of the present invention;
FIG. 3 is a schematic structural diagram I of a reaction mechanism of the present invention;
FIG. 4 is a schematic structural diagram II of the reaction mechanism of the present invention;
fig. 5 is a schematic structural diagram iii of the reaction mechanism of the present invention;
FIG. 6 is a schematic structural view of the stirring rod of the present invention;
fig. 7 is a schematic structural diagram of the preheating mechanism of the present invention.
In the figure: a boiler 1; 1-1 of a smoke exhaust pipe; the electromagnetic valve I1-2; a reaction mechanism 2; 2-1 of a reaction tank; a circulation pipe 2-2; an inlet pipe 2-3; 2-4 parts of a stirring rod; 2-5 of a fan; 2-6 of an air supply pipe; a circulating mechanism 3; 3-1 of a water pump; a flow divider valve I3-2; 3-3 of a return pipe; 3-4 parts of a spraying ring; a stirring storage mechanism 4; a preheating mechanism 5; 5-1 of a spiral pipe; a solenoid valve II 5-2; 5-3 of a water supply pipe; a flow divider II 5-4; a fume extraction tower 6.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the present embodiment is described below with reference to fig. 1 to 7, and a wet desulfurization system includes a boiler 1, a stirring storage mechanism 4, a smoke exhaust tower 6, and further includes a reaction mechanism 2, a circulation mechanism 3, and a preheating mechanism 5, where the reaction mechanism 2 is fixedly connected to the right end of the boiler 1, the stirring storage mechanism 4 is disposed at the rear end of the reaction mechanism 2, the circulation mechanism 3 is disposed at the front end of the reaction mechanism 2, the smoke exhaust tower 6 is fixedly connected to the right end of the reaction mechanism 2, the preheating mechanism 5 is fixedly connected in the smoke exhaust tower 6, and the preheating mechanism 5 is communicated with the stirring storage mechanism 4.
The second embodiment is as follows:
the embodiment is described below with reference to fig. 1 to 7, and the embodiment will be further described, wherein the smoke exhaust pipe 1-1 is fixedly connected to the right end of the boiler 1, the smoke exhaust pipe 1-1 is provided with an electromagnetic valve i 1-2, the reaction mechanism 2 is fixedly connected to the right end of the smoke exhaust pipe 1-1, and the device is provided with a controller which can remotely control the working states of the electromagnetic valve i 1-2, the water pump 3-1, the flow dividing valve i 3-2, the two electromagnetic valves ii 5-2 and the flow dividing valve ii 5-4.
The third concrete implementation mode:
the second embodiment is further described with reference to fig. 1-7, wherein the reaction mechanism 2 includes a reaction tank 2-1, a circulation pipe 2-2, an introduction pipe 2-3, a stirring rod 2-4, a fan 2-5 and an air supply pipe 2-6, the reaction tank 2-1 is fixedly connected to the right end of the smoke exhaust pipe 1-1, the introduction pipe 2-3 is fixedly connected in the reaction tank 2-1, the introduction pipe 2-3 is communicated with the smoke exhaust pipe 1-1, the circulation pipe 2-2 is provided with two circulation pipes 2-2, the two circulation pipes 2-2 are respectively arranged at the upper and lower sides of the rear end of the reaction tank 2-1, the fan 2-5 is rotatably connected in the introduction pipe 2-3, the stirring rod 2-4 is fixedly connected to the lower end of the fan 2-5, the gas supply pipe 2-6 is fixedly connected to the upper end of the reaction tank 2-1, the stirring storage mechanism 4 is fixedly connected to the rear end of the reaction tank 2-1, the circulating mechanism 3 is fixedly connected to the rear ends of the two circulating pipes 2-2, and the smoke exhaust tower 6 is fixedly connected to the right end of the gas supply pipe 2-6.
When the device is used, the electromagnetic valve I1-2 is opened through the controller, waste gas generated by combustion in the boiler 1 enters the reaction tank 2-1 through the smoke exhaust pipe 1-1, the fan 2-5 rotates in the inlet pipe 2-3 through airflow generated in the waste gas moving process, meanwhile, the fan 2-5 drives the stirring rod 2-4 to rotate in the Ca (OH) 2 solution, and the Ca (OH) 2 solution is continuously stirred.
The stirring rod can keep the solution for desulfurization in a stirring state during desulfurization, SO that Ca (OH) 2 in the solution can fully react with SO2, and the stirring rod can rotate to prevent sediment accumulation and prolong the service life of equipment.
The fourth concrete implementation mode:
the third embodiment will be described below with reference to fig. 1 to 7, the circulating mechanism 3 comprises a water pump 3-1, a flow divider I3-2, a return pipe 3-3 and a spraying ring 3-4, the water pump 3-1 is fixedly connected with the front end of the lower end circulating pipe 2-2, the flow dividing valve I3-2 is fixedly connected with the front end of the water pump 3-1, two ends of the return pipe 3-3 are respectively fixedly connected with the upper port of the flow divider I3-2 and the upper end circulating pipe 2-2, the other port of the flow dividing valve I3-2 is connected with a drainage device, the spraying ring 3-4 is specified to be capable of being connected to the upper part in the reaction tank 2-1, and the spraying ring 3-4 is fixedly connected with the upper end circulating pipe 2-2.
Before use, the prepared Ca (OH) 2 solution in the stirring storage mechanism 4 enters the reaction tank 2-1 through a pipeline, the liquid level of the Ca (OH) 2 solution passes through the lower end circulating pipe 2-2, then the water pump 3-1 is opened through the controller, the circulating pipe of the flow dividing valve I3-2 is communicated with the return pipe 3-3, and under the action of the water pump 3-1, the Ca (OH) 2 solution enters the spraying ring 3-4 through the return pipe 3-3 and the upper end circulating pipe 2-2 and is sprayed out from the spraying pipes below the spraying ring 3-4 to form a water network.
The waste gas can be desulfurized for the second time through the circulating mechanism, so that the desulfurization rate is increased.
The fifth concrete implementation mode:
the embodiment is described below with reference to fig. 1 to 7, and the second embodiment is further described in the present embodiment, where the preheating mechanism 5 includes a spiral pipe 5-1, two electromagnetic valves ii 5-2, a water supply pipe 5-3, and a flow dividing valve ii 5-4, the two electromagnetic valves ii 5-2 are provided, the two electromagnetic valves ii 5-2 are respectively and fixedly connected to two ends of the spiral pipe 5-1, two ends of the water supply pipe 5-3 are respectively and fixedly connected to the lower end electromagnetic valve ii 5-2 and the flow dividing valve ii 5-4, one port of the flow dividing valve ii 5-4 is fixedly connected to a water injection pipe of the stirring storage mechanism 4, the other port is connected to other devices, and the stirring storage mechanism 4 is a quicklime dissolving stirrer commonly used in industry.
And opening the electromagnetic valve II 5-2 at the upper end and closing the electromagnetic valve II 5-2 at the lower end by the controller to fill the spiral pipe 5-1 with water, and closing the electromagnetic valve II 5-2 at the upper end after filling.
The waste gas entering the smoke exhaust tower 6 still contains a large amount of heat, the heat is absorbed by the water in the spiral pipe 5-1, the water in the spiral pipe 5-1 is heated to a certain temperature, when the temperature reaches a certain temperature, the electromagnetic valve II 5-2 at the lower end is opened through the controller, the heated water enters the water supply pipe 5-3, enters the quicklime stirring cavity of the stirring storage mechanism 4 or enters the washing water pipeline of staff through the control of the flow dividing valve II 5-4, the environment is protected while the energy utilization rate is improved, then the electromagnetic valve II 5-2 at the lower end is closed, and the electromagnetic valve II 5-2 at the upper end is opened, so that the spiral pipe 5-1 is filled with water again.
The sixth specific implementation mode:
in the following description of the present embodiment with reference to fig. 1 to 7, the spiral pipe 5-1 is fixedly connected to the fume extraction tower 6, and the stirring chamber of the stirring storage mechanism 4 is communicated with the reaction tank 2-1 through a pipeline.
The utility model discloses a wet flue gas desulfurization system, its theory of operation is:
before use, the prepared Ca (OH) 2 solution in the stirring storage mechanism 4 enters the reaction tank 2-1 through a pipeline, the liquid level of the Ca (OH) 2 solution passes through the lower end circulating pipe 2-2, then the water pump 3-1 is opened through the controller, the circulating pipe of the flow dividing valve I3-2 is communicated with the return pipe 3-3, under the action of the water pump 3-1, the Ca (OH) 2 solution enters the spraying ring 3-4 through the return pipe 3-3 and the upper end circulating pipe 2-2 and is sprayed out from the spraying pipes below the spraying ring 3-4 to form a water network, and secondary desulfurization can be carried out on waste gas through the circulating mechanism, so that the desulfurization rate is increased.
And opening the electromagnetic valve II 5-2 at the upper end and closing the electromagnetic valve II 5-2 at the lower end by the controller to fill the spiral pipe 5-1 with water, and closing the electromagnetic valve II 5-2 at the upper end after filling.
When the device is used, the electromagnetic valve I1-2 is opened through the controller, waste gas generated by combustion in the boiler 1 enters the reaction tank 2-1 through the smoke exhaust pipe 1-1, the fan 2-5 is rotated in the inlet pipe 2-3 by airflow generated in the waste gas moving process, meanwhile, the stirring rod 2-4 is driven by the fan 2-5 to rotate in the Ca (OH) 2 solution, the Ca (OH) 2 solution is continuously stirred, Ca (OH) 2 in the solution is fully reacted with SO2, precipitate accumulation can be prevented by the rotation of the stirring rod, the service life of the device is prolonged, and then the waste gas enters the Ca (OH) 2 solution through the inlet pipe 2-3 and is subjected to desulfurization reaction with SO2 in the waste gas, Ca (OH) 2 and H2O to generate CaSO4 and H2O.
The exhaust gas discharged from the Ca (OH) 2 solution passes through the water net formed by the spraying rings 3-4 again to filter the residual SO2 in the exhaust gas, and then the exhaust gas enters the smoke exhaust tower 6 through the air supply pipe 2-6.
The waste gas entering the smoke exhaust tower 6 still contains a large amount of heat, the heat is absorbed by the water in the spiral pipe 5-1, the water in the spiral pipe 5-1 is heated to a certain temperature, when the temperature reaches a certain temperature, the electromagnetic valve II 5-2 at the lower end is opened through the controller, the heated water enters the water supply pipe 5-3, enters the quicklime stirring cavity of the stirring storage mechanism 4 or enters the washing water pipeline of staff through the control of the flow dividing valve II 5-4, the environment is protected while the energy utilization rate is improved, then the electromagnetic valve II 5-2 at the lower end is closed, and the electromagnetic valve II 5-2 at the upper end is opened, so that the spiral pipe 5-1 is filled with water again.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a wet flue gas desulfurization system, includes boiler (1), stirring storage mechanism (4) and exhaust tower (6), its characterized in that: this wet flue gas desulfurization system still includes reaction mechanism (2), circulation mechanism (3) and preheats mechanism (5), reaction mechanism (2) fixed connection is at the right-hand member of boiler (1), stirring storage mechanism (4) set up the rear end at reaction mechanism (2), circulation mechanism (3) set up the front end at reaction mechanism (2), the right-hand member at reaction mechanism (2) is connected in fixed connection in exhaust tower (6), preheat mechanism (5) regulation fixed connection in exhaust tower (6), and preheat mechanism (5) and stirring storage mechanism (4) intercommunication.
2. A wet desulfurization system according to claim 1, characterized in that: the boiler is characterized by further comprising a smoke exhaust pipe (1-1), wherein the smoke exhaust pipe (1-1) is fixedly connected to the right end of the boiler (1), an electromagnetic valve I (1-2) is arranged on the smoke exhaust pipe (1-1), and the reaction mechanism (2) is fixedly connected to the right end of the smoke exhaust pipe (1-1).
3. A wet desulfurization system according to claim 2, characterized in that: the reaction mechanism (2) comprises a reaction tank (2-1), circulating pipes (2-2), a lead-in pipe (2-3), stirring rods (2-4), a fan (2-5) and an air supply pipe (2-6), the reaction tank (2-1) is fixedly connected to the right end of the smoke exhaust pipe (1-1), the lead-in pipe (2-3) is fixedly connected into the reaction tank (2-1), the lead-in pipe (2-3) is communicated with the smoke exhaust pipe (1-1), the circulating pipes (2-2) are provided with two circulating pipes (2-2), the two circulating pipes (2-2) are respectively arranged on the upper side and the lower side of the rear end of the reaction tank (2-1), the fan (2-5) is rotatably connected into the lead-in pipe (2-3), and the stirring rods (2-4) are fixedly connected to the lower end of the fan (2-5), the gas supply pipe (2-6) is fixedly connected to the upper end of the reaction tank (2-1), the stirring storage mechanism (4) is fixedly connected to the rear end of the reaction tank (2-1), the circulating mechanism (3) is fixedly connected to the rear ends of the two circulating pipes (2-2), and the smoke exhaust tower (6) is fixedly connected to the right end of the gas supply pipe (2-6).
4. A wet desulfurization system according to claim 3, characterized in that: the circulating mechanism (3) comprises a water pump (3-1), a flow divider I (3-2), a return pipe (3-3) and a spraying ring (3-4), the water pump (3-1) is fixedly connected with the front end of the lower end circulating pipe (2-2), the flow dividing valve I (3-2) is fixedly connected with the front end of the water pump (3-1), two ends of the return pipe (3-3) are respectively fixedly connected with the upper port of the flow divider I (3-2) and the upper end circulation pipe (2-2), the other port of the flow divider I (3-2) is connected with a drainage device, the spraying ring (3-4) is specified to be connected to the upper part in the reaction tank (2-1), and the spraying ring (3-4) is fixedly connected with the upper end circulating pipe (2-2).
5. A wet desulfurization system according to claim 2, characterized in that: the preheating mechanism (5) comprises a spiral pipe (5-1), two electromagnetic valves II (5-2), a water feeding pipe (5-3) and a flow dividing valve II (5-4), the two electromagnetic valves II (5-2) are fixedly connected to two ends of the spiral pipe (5-1) respectively, two ends of the water feeding pipe (5-3) are fixedly connected with the lower end electromagnetic valve II (5-2) and the flow dividing valve II (5-4) respectively, one port of the flow dividing valve II (5-4) is fixedly connected with a water injection pipe of the stirring storage mechanism (4), and the other port of the flow dividing valve II (5-4) is connected with other equipment.
6. A wet desulfurization system according to claim 1, characterized in that: the spiral pipe (5-1) is fixedly connected in the smoke exhaust tower (6), and the stirring cavity of the stirring storage mechanism (4) is communicated with the reaction tank (2-1) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922061036.1U CN211246086U (en) | 2019-11-26 | 2019-11-26 | Wet desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922061036.1U CN211246086U (en) | 2019-11-26 | 2019-11-26 | Wet desulphurization system |
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| Publication Number | Publication Date |
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| CN211246086U true CN211246086U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922061036.1U Active CN211246086U (en) | 2019-11-26 | 2019-11-26 | Wet desulphurization system |
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| CN (1) | CN211246086U (en) |
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- 2019-11-26 CN CN201922061036.1U patent/CN211246086U/en active Active
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