CN209759382U - flue gas desulfurization device for coke oven ground dust removal station - Google Patents
flue gas desulfurization device for coke oven ground dust removal station Download PDFInfo
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- CN209759382U CN209759382U CN201920247351.0U CN201920247351U CN209759382U CN 209759382 U CN209759382 U CN 209759382U CN 201920247351 U CN201920247351 U CN 201920247351U CN 209759382 U CN209759382 U CN 209759382U
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Abstract
the utility model discloses a coke oven ground dust removal station flue gas desulphurization unit, it includes sweetener, dust removal trunk, dust removal house steward, diverter valve, dust remover and fan. The dust removal main pipe is used for collecting smoke generated by coal charging or coke discharging of the coke oven, and one end of the dust removal main pipe is communicated with all the dust removal main pipes so as to receive the smoke collected by the dust removal main pipes. The switching valve is arranged on the corresponding dust removal main pipe, and the dust remover is communicated with the other end of the dust removal main pipe and removes dust from the smoke dust conveyed by the dust removal main pipe. The fan is used for conveying the smoke and dust after dust removal of the dust remover to the desulfurization equipment for desulfurization. The utility model discloses many dust removal main pipes have been set up to every dust removal main pipe is collected the smoke and dust to the house steward that removes dust, because set up a diverter valve on every dust removal main pipe, the diverter valve can control opening and close of dust removal main pipe, prevents that the coke oven smoke and dust can scurry to other coke ovens that do not produce the smoke and dust, and then reduces the environmental pollution that the smoke and dust drifted away and cause, has improved the collection rate of smoke and dust moreover.
Description
Technical Field
the utility model relates to a desulphurization unit in the technical field of coke oven production, in particular to a flue gas desulphurization unit of a coke oven ground dust removal station.
Background
In the coking production process, different coal types are proportioned, mixed and crushed and then conveyed to a coal tower through a belt conveyor, the coal is put into a tamping coal box of a coal charging car through a discharging machine at the bottom of the coal tower, the coal is tamped and compacted layer by the tamping machine while the coal is put, and the tamped and compacted coal is called coal cakes. When the coke oven needs to be charged with coal, the oven door of the coking chamber at the coke oven side is picked off and moved away, the coal charging car is moved, the center of a coal cake box of the coal charging car is aligned with the center of the coking chamber, a wall plate for fixing the coal cake is separated from the coal cake, a coal cake pushing mechanism on the coal charging car pushes the coal cake to be sent into the coking chamber of the coke oven, and the oven door is sealed after the coal charging is finished.
During coal charging, smoke dust is generated instantly when the coal cake meets the high-temperature furnace wall at 1200 ℃, and also generated when the coke oven is discharged. The existing methods for collecting the smoke dust comprise the following steps: (1) smoke and dust are pumped into an adjacent carbonization chamber for combustion by a furnace top smoke abatement vehicle; (2) high-pressure ammonia water is sprayed in the bridge pipe of the coke oven, negative pressure is formed around the high-pressure ammonia water when the high-pressure ammonia water is sprayed at a high speed, and smoke dust is sucked into the gas collecting pipe, so that the smoke dust is eliminated; (3) the top of each carbonization chamber on the coke oven side is provided with a corresponding smoke guide hood, and smoke dust scattered out of the carbonization chamber is firstly absorbed into the smoke guide hood during coal charging and then subjected to dust removal and desulfurization emission. However, when some coke ovens among the plurality of coke ovens generate smoke and desulfurize and discharge the smoke, the smoke may be emitted to other coke ovens which do not generate smoke and may be scattered to cause environmental pollution.
SUMMERY OF THE UTILITY MODEL
To the prior art, the utility model provides a coke oven ground dust removal station flue gas desulphurization unit has solved among the current coke oven smoke and dust and can scurry to other coke ovens that do not produce the smoke and dust to waft and walk and cause environmental pollution's problem.
The utility model discloses a following technical scheme realizes: a flue gas desulfurization device of a coke oven ground dust removal station comprises:
A desulfurization unit;
the dust removal main pipes correspond to the at least two coke ovens respectively, and each dust removal main pipe is used for collecting smoke dust generated by coal charging or coke discharging of the corresponding coke oven;
One end of the dust removal main pipe is communicated with all the dust removal main pipes so as to receive the smoke dust collected by the dust removal main pipes;
at least two switching valves respectively corresponding to the at least two dust removing main pipes, wherein each switching valve is arranged on the corresponding dust removing main pipe;
The dust remover is communicated with the other end of the dust removing main pipe and removes dust from the smoke conveyed by the dust removing main pipe; and
And the fan is used for conveying the smoke dust subjected to dust removal by the dust remover to desulfurization equipment.
as a further improvement of the above scheme, when the dust removal main pipe is used for collecting smoke generated by coal charging of a corresponding coke oven, the desulfurization equipment is a coal charging flue gas desulfurization tower; when the dust removal main pipe is used for collecting smoke dust generated by coke discharging of a corresponding coke oven, the desulfurization equipment is a coke discharging flue gas desulfurization tower.
as a further improvement of the scheme, the desulfurization equipment comprises a three-way valve, a coal-charging flue gas desulfurization tower and a coke-discharging flue gas desulfurization tower; the input end of the three-way valve is communicated with the output end of the fan, and the two output ends of the three-way valve are respectively communicated with the coal-charging flue gas desulfurization tower and the coke-discharging flue gas desulfurization tower.
As a further improvement of the scheme, the desulfurization equipment comprises a switching turnover plate, two flue gas pipes, a coal-charging flue gas desulfurization tower and a coke-discharging flue gas desulfurization tower; the same ends of the two flue gas pipes are communicated with the output end of the fan, and the same other ends of the two flue gas pipes are respectively communicated with the coal-charging flue gas desulfurization tower and the coke-discharging flue gas desulfurization tower; the switching turnover plate is rotatably arranged at the joint of the flue gas pipe and the fan and is used for selecting one flue gas pipe to be communicated with the fan through rotation.
as a further improvement of the above aspect, the desulfurization apparatus further includes:
At least two gas sensors respectively corresponding to the at least two dust removal main pipes; each gas sensor is arranged on the corresponding dust removal dry pipe and is used for detecting gas in the dust removal dry pipe.
as a further improvement of the above aspect, the desulfurization apparatus further includes:
At least two gas flow meters respectively corresponding to the at least two dust removing main pipes; each gas flowmeter is arranged on the corresponding dust removal main pipe and is used for displaying the flow of gas in the dust removal main pipe.
As a further improvement of the proposal, the switching valve is a gas electromagnetic valve, and the dust remover is a coke oven ground dust removing station.
As a further improvement of the above aspect, the desulfurization apparatus further includes:
And the discharge chimney is used for discharging the smoke and dust desulfurized by the desulfurization equipment.
As a further improvement of the scheme, the desulfurization equipment, the dust remover and the fan are all arranged independently.
As a further improvement of the scheme, the dust remover is a bag-type dust remover, and the fan is an induced draft fan.
the utility model discloses a coke oven ground dust removal station flue gas desulphurization unit, it has set up many dust removal main pipes to every dust removal main pipe is used for collecting the smoke and dust of the coke oven that corresponds, and collect the smoke and dust to the house steward that removes dust, and because set up a diverter valve on every dust removal main pipe, the switching valve can control opening and close of dust removal main pipe, prevent that the smoke and dust can scurry to other coke ovens that do not produce the smoke and dust in the coke oven, and then reduce the environmental pollution that the smoke and dust drifted away and cause, and improved the collection rate of smoke and dust. The utility model discloses in, after all smoke and dust were collected to the dust removal house steward, the smoke and dust can get into and remove dust in the dust remover to reduce the content of dust in the smoke and dust, and the smoke and dust after the dust removal carries out the desulfurization in further transmitting to sweetener through the fan, thereby realizes the dust removal desulfurization to the smoke and dust, prevents that the coke oven smoke and dust from discharging and causing the pollution.
Drawings
FIG. 1 is a schematic structural view of a flue gas desulfurization device of a coke oven ground dust removal station according to embodiment 1 of the present invention;
FIG. 2 is a frame diagram of the flue gas desulfurization device of the coke oven ground dust removal station in FIG. 1 during coal charging;
FIG. 3 is a frame diagram of the flue gas desulfurization device of the coke oven ground dust removal station in FIG. 1 during coke discharging;
FIG. 4 is a schematic structural view of a flue gas desulfurization device of a coke oven ground dust removal station in embodiment 2 of the present invention;
FIG. 5 is a schematic structural view of a flue gas desulfurization device of a coke oven ground dust removal station according to embodiment 3 of the present invention;
FIG. 6 is a schematic structural view of a flue gas desulfurization device of a coke oven ground dust removal station according to embodiment 4 of the present invention;
FIG. 7 is a schematic structural view of a flue gas desulfurization device of a coke oven ground dust removal station according to embodiment 5 of the present invention.
Description of the symbols:
9 three-way valve of 1 desulfurization equipment
2 dust removal main pipe 10 switches over board
3 dust removal header pipe 11 flue gas pipe
4 switching valve 12 discharge chimney
5 dust remover 13 gas sensor
6 blower 14 gas flowmeter
7 coal-charging flue gas desulfurization tower 15 pretreatment mechanism
8 go out 16 pipelines in burnt flue gas desulfurization tower
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
Referring to fig. 1, 2 and 3, the embodiment provides a flue gas desulfurization device for a coke oven ground dust removal station, which includes a desulfurization apparatus 1, a dust removal main pipe 2, a dust removal main pipe 3, a switching valve 4, a dust remover 5, a fan 6, and an exhaust chimney 12.
in this embodiment, the desulfurization device 1 is a coal charging flue gas desulfurization tower 7 or a coke discharging flue gas desulfurization tower 8. In particular, the type of desulfurization unit 1 can be selected according to the actual operating conditions of the coke oven. Of course, in other embodiments, the desulfurization device 1 can also be other mechanisms for desulfurizing gas, and can be any existing desulfurization device.
The number of the dust removing main pipes 2 is at least two, each dust removing main pipe 2 corresponds to one coke oven, and each dust removing main pipe 2 is used for collecting smoke dust generated by coal charging or coke discharging of the corresponding coke oven. The dust removal main pipe 2 can collect the smoke dust in the coke oven through a dust hood, and can also collect the smoke dust through other structures. The dust removing main pipe 2 can be made of high-temperature resistant materials, such as cement, high-temperature resistant metal and the like. The pipe diameter of the dust removal main pipe 2 can be set according to the amount of smoke and dust generated in the coke oven so as to ensure that the smoke and dust in the coke oven is fully absorbed. Here, in the present embodiment, when the dust removal main pipe 2 is used for collecting smoke generated by coal charging of the corresponding coke oven, the desulfurization facility 1 is a coal-charging flue gas desulfurization tower 7. And when the dust removal main pipe 2 is used for collecting smoke generated by coke discharging of a corresponding coke oven, the desulfurization equipment 1 is a coke discharging flue gas desulfurization tower 8.
One end of the dust collection header pipe 3 is communicated with all the dust collection main pipes 2 to receive the smoke collected by the dust collection main pipes 2. The cross-sectional area of the dust collection header 3 can be equal to the sum of the cross-sectional areas of all the dust collection main pipes 2, so as to ensure a large enough space for collecting the smoke dust of each dust collection main pipe 2. The material of the dust collection main pipe 3 can be the same as that of the dust collection main pipe 2, and other materials can also be adopted independently. When the number of the dust removing trunk pipes 2 is two, the dust removing trunk pipe 3 may be T-shaped, two ports located at the upper portion are connected to the two dust removing trunk pipes 2, and a port located at the lower portion may be connected to other structures. In other embodiments, a valve may be disposed on the dust collection header 3 to control the opening and closing of the dust collection header 3.
The number of the switching valves 4 is the same as that of the dust removing trunk pipes 2, and corresponds to one. Wherein each switching valve 4 is mounted on a corresponding dust removal main pipe 2. In this embodiment, the switching valve 4 is preferably a gas solenoid valve to control the gas flow of the dust removal main pipe 2, and the opening and closing of the dust removal main pipe 2 can be automatically controlled by inputting an electric signal without manual operation, thereby saving time and labor. Of course, the switching valves 4 may also be manually operated valves, and when the dust removal trunk 2 needs to be opened or closed, an operator may open or close the corresponding switching valve 4.
The dust remover 5 is communicated with the other end of the dust removing header pipe 3 and removes dust from the smoke and dust conveyed by the dust removing header pipe 3. In this embodiment, the dust collector 5 may be a bag-type dust collector, or may be a ground dust collecting station of a coke oven, and in other embodiments, the dust collector 5 may be another dust collecting mechanism. The dust remover 5 can remove dust from the smoke dust entering from the dust removing header pipe 3, so that most or even all dust in the smoke dust is collected, and other gas enters into subsequent treatment from the output end, thereby avoiding the environmental pollution caused by direct emission of the dust in the smoke dust.
It should be noted here that when the coke oven is charged with coal, a pre-treatment mechanism 15 for dust removal is additionally arranged between the dust remover 5 and the dust removal header pipe 3, and the pre-treatment mechanism 15 for dust removal can be any pre-treatment equipment in the prior art. While the pretreatment mechanism 15 for dust removal may not be provided when the coke oven is discharging coke.
The fan 6 is used for conveying the smoke dust removed by the dust remover 5 to the desulfurization device 1 through the pipeline 16 for desulfurization. The fan 6 can be an induced draft fan, and in the specific arrangement, the coke oven can be judged to be in the process of coal charging or coke discharging, and different induced draft fans are arranged according to the actual situation. The fan 6 can convey the smoke dust removed by the dust remover 5 to the desulfurization device 1, namely, to the desulfurization tower. Therefore, the device removes dust and desulfurizes smoke dust, can directly discharge gas reaching the standard from the desulfurizing tower, and can also discharge the gas to other structures for further treatment.
The discharge chimney 12 is used for discharging the smoke and dust desulfurized by the desulfurization equipment 1, and can discharge the smoke and dust up to the standard. The exhaust stack 12 may be located at the top of the desulfurization tower or may be used directly as the top structure of the desulfurization tower. The discharge chimney 12 can also be separately arranged and connected with the desulfurization equipment 1 through a pipeline so as to discharge the standard-reaching smoke dust discharged by the desulfurization equipment 1.
Wherein, the desulfurization equipment 1, the dust remover 5 and the fan 6 are all arranged independently. In this embodiment, when one coke oven is charged or discharged and the other coke ovens are not charged or discharged, the dust removal main pipe 2 corresponding to the other coke ovens can be closed through the switching valve 4, so that the smoke generated by charging or discharging the coke oven is transmitted to the desulfurization equipment 1 through the dust removal main pipe 2, the dust removal main pipe 3, the switching valve 4, the dust remover 5 and the fan 6 in sequence to perform desulfurization, and the smoke is discharged up to the standard.
In conclusion, the flue gas desulfurization device for the coke oven ground dust removal station has the following advantages:
The coke oven ground dust removal station flue gas desulphurization unit of this embodiment, it has set up many dust removal main pipes 2, and every dust removal main pipe 2 is used for collecting the smoke and dust of the coke oven that corresponds, and collect the dust and dust to dust removal house steward 3 in, and because set up a diverter valve 4 on every dust removal main pipe 2, diverter valve 4 can control opening and close of dust removal main pipe 2, prevent that the smoke and dust can scurry to other coke ovens that do not produce the smoke and dust in the coke oven, and then reduce the environmental pollution that the smoke and dust drifted away and cause, and the collection rate of smoke and dust has been improved. In this embodiment, after the dust collection header pipe 3 collects all the smoke, the smoke will enter the dust collector 5 for dust collection, so as to reduce the dust content in the smoke, and the dust after dust collection is further transmitted to the desulfurization device 1 for desulfurization through the fan 6, so as to realize dust collection and desulfurization of the smoke and prevent the pollution caused by the emission of the smoke of the coke oven.
example 2
referring to fig. 4, the embodiment provides a flue gas desulfurization device for a coke oven ground dust removal station, which is similar to the flue gas desulfurization device for the coke oven ground dust removal station of embodiment 1, and the difference is that the desulfurization device 1 of the embodiment has a different structure. Wherein, the desulfurization equipment 1 comprises a three-way valve 9, a coal charging flue gas desulfurization tower 7 and a coke discharging flue gas desulfurization tower 8. The input end of the three-way valve 9 is communicated with the output end of the fan 6 through a pipeline 16, and two output ends of the three-way valve 9 are respectively communicated with the coal charging flue gas desulfurization tower 7 and the coke discharging flue gas desulfurization tower 8 through two flue gas pipes 11. So, when the coke oven is coaled, operating personnel accessible three-way valve 9 links to each other fan 6 with coal-charging flue gas desulfurization tower 7, and when the coke oven goes out the burnt, operating personnel accessible three-way valve 9 links to each other fan 6 with play burnt flue gas desulfurization tower 8. Therefore, the desulfurization device can work no matter the coal is charged or the coke is discharged, the desulfurization tower does not need to be replaced, the smoke and dust are conveniently treated, and the working efficiency of the coke oven is improved.
example 3
referring to fig. 5, the present embodiment provides a flue gas desulfurization device for a coke oven ground dust removal station, which is similar to the flue gas desulfurization device for the coke oven ground dust removal station in embodiment 1, and the difference is that the desulfurization device 1 in the present embodiment includes a switching flap 10, two flue gas pipes 11, a coal-charging flue gas desulfurization tower 7, and a coke-discharging flue gas desulfurization tower 8. The same ends of the two flue gas pipes 11 are communicated with the output end of the fan 6 through a pipeline 16, and the same ends are respectively communicated with the coal charging flue gas desulfurization tower 7 and the coke discharging flue gas desulfurization tower 8. The switching turnover plate 10 is rotatably installed at the joint of the flue gas pipe 11 and the fan 6 and is used for selecting one flue gas pipe 11 to be communicated with the fan 6 through rotation. In this embodiment, the operator can switch the turning plate 10 in a rotating manner to realize the switching between the fan 6 and the coal charging flue gas desulfurization tower 7 and the coke discharging flue gas desulfurization tower 8, and can switch the rotation of the turning plate 10 by the driving of the driving devices such as the motor and the like, so that the operation is convenient and the automation can be realized, thereby improving the working efficiency of the coke oven.
Example 4
Referring to fig. 6, the embodiment provides a flue gas desulfurization device for a ground dust removal station of a coke oven, which is added with a gas sensor 13 on the basis of embodiment 1. The number of the gas sensors 13 is the same as that of the dust removal trunk pipes 2, and corresponds to one. Each gas sensor 13 is installed on the corresponding dust removal trunk pipe 2 and is used to detect gas inside the dust removal trunk pipe 2. Thus, the gas sensor 13 corresponds to the switching valve 4, and when the gas sensor 13 detects gas, an operator can conduct the corresponding dust removal main pipe 2 through the switching valve 4 to collect smoke generated by the corresponding coke oven. Of course, the switching valve 4 may be a gas solenoid valve, and the signal output by the gas sensor 13 may be used as the input switching signal of the switching valve 4, so as to realize the self-starting of the switching valve 4, and facilitate the collection and treatment of the smoke.
Example 5
Referring to fig. 7, the embodiment provides a flue gas desulfurization device for a ground dust removal station of a coke oven, which is added with a gas flow meter 14 on the basis of embodiment 1. The number of the gas flow meters 14 is the same as the number of the dust removal trunk pipes 2, and corresponds to one. Each gas flow meter 14 is installed on the corresponding dust removal trunk 2 and is used to display the flow rate of the gas in the dust removal trunk 2. When the coke oven is used for charging or discharging coke, the generated smoke dust can be collected in the dust removal main pipe 2, and the gas flow meter 14 can timely display the flow of the smoke dust, so that on one hand, the gas flow meter can be used as a basis for detecting whether the dust removal main pipe 2 is unblocked, and on the other hand, an operator can be reminded to timely control other structures such as the dust remover 5, and the high-efficiency operation of the whole device is ensured.
the above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A flue gas desulfurization device of a coke oven ground dust removal station comprises:
A desulfurization device (1);
characterized in that, the desulphurization device further comprises:
The dust removal system comprises at least two dust removal main pipes (2) which respectively correspond to at least two coke ovens, wherein each dust removal main pipe (2) is used for collecting smoke dust generated by coal charging or coke discharging of the corresponding coke oven;
One end of the dust removal main pipe (3) is communicated with all the dust removal main pipes (2) so as to receive the smoke dust collected by the dust removal main pipes (2);
At least two switching valves (4) respectively corresponding to the at least two dust removing main pipes (2), wherein each switching valve (4) is arranged on the corresponding dust removing main pipe (2);
The dust remover (5) is communicated with the other end of the dust removing main pipe (3) and removes dust conveyed by the dust removing main pipe (3); and
And the fan (6) is used for conveying the smoke dust subjected to dust removal by the dust remover (5) to the desulfurization equipment (1) for desulfurization.
2. The flue gas desulfurization device of the coke oven ground dust removal station of claim 1, characterized in that when the dust removal main pipe (2) is used for collecting the smoke generated by the coal charging of the corresponding coke oven, the desulfurization equipment (1) is a coal charging flue gas desulfurization tower (7); when the dust removal main pipe (2) is used for collecting smoke dust generated by coke discharging of a corresponding coke oven, the desulfurization equipment (1) is a coke discharging flue gas desulfurization tower (8).
3. The flue gas desulfurization device of the coke oven ground dust removal station of claim 1, wherein the desulfurization equipment (1) comprises a three-way valve (9), a coal charging flue gas desulfurization tower (7) and a coke discharging flue gas desulfurization tower (8); the input end of the three-way valve (9) is communicated with the output end of the fan (6), and the two output ends of the three-way valve (9) are respectively communicated with the coal charging flue gas desulfurization tower (7) and the coke discharging flue gas desulfurization tower (8).
4. the flue gas desulfurization device of the coke oven ground dust removal station of claim 1, wherein the desulfurization equipment (1) comprises a switching flap (10), two flue gas pipes (11), a coal charging flue gas desulfurization tower (7) and a coke discharging flue gas desulfurization tower (8); the same ends of the two flue gas pipes (11) are communicated with the output end of the fan (6), and the same other ends are respectively communicated with the coal charging flue gas desulfurization tower (7) and the coke discharging flue gas desulfurization tower (8); the switching turning plate (10) is rotatably arranged at the joint of the flue gas pipe (11) and the fan (6) and is used for selecting one flue gas pipe (11) to be communicated with the fan (6) through rotation.
5. The flue gas desulfurization device for the coke oven ground dust removal station of claim 1, wherein the desulfurization device further comprises:
At least two gas sensors (13) respectively corresponding to the at least two dust removal main pipes (2); each gas sensor (13) is arranged on the corresponding dust removal main pipe (2) and is used for detecting the gas in the dust removal main pipe (2).
6. The flue gas desulfurization device for the coke oven ground dust removal station of claim 1, wherein the desulfurization device further comprises:
At least two gas flow meters (14) respectively corresponding to the at least two dust removal main pipes (2); each gas flowmeter (14) is arranged on the corresponding dust removal main pipe (2) and is used for displaying the flow of the gas in the dust removal main pipe (2).
7. the flue gas desulfurization device of the coke oven ground dust removal station of claim 1, wherein the switching valve (4) is a gas solenoid valve, and the dust remover (5) is a coke oven ground dust removal station.
8. The flue gas desulfurization device for the coke oven ground dust removal station of claim 1, wherein the desulfurization device further comprises:
and the discharge chimney (12) is used for discharging the smoke and dust desulfurized by the desulfurization equipment (1).
9. The flue gas desulfurization device of the coke oven ground dust removal station of claim 1, wherein the desulfurization equipment (1), the dust remover (5) and the fan (6) are all arranged separately.
10. The flue gas desulfurization device of the coke oven ground dust removal station of claim 1, wherein the dust remover (5) is a bag-type dust remover, and the fan (6) is an induced draft fan.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112625763A (en) * | 2020-11-30 | 2021-04-09 | 乌海市西部煤化工有限责任公司 | Coke oven gas desulfurization process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112625763A (en) * | 2020-11-30 | 2021-04-09 | 乌海市西部煤化工有限责任公司 | Coke oven gas desulfurization process |
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