CN211635598U - Oil mist filtering device for mist discharge of rolling mill - Google Patents
Oil mist filtering device for mist discharge of rolling mill Download PDFInfo
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- CN211635598U CN211635598U CN201922254170.3U CN201922254170U CN211635598U CN 211635598 U CN211635598 U CN 211635598U CN 201922254170 U CN201922254170 U CN 201922254170U CN 211635598 U CN211635598 U CN 211635598U
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Abstract
The utility model discloses an oil mist filter equipment for rolling mill fog removal, including filter screen, filter screen belt cleaning device, controller and be used for gathering oil mist filter equipment for rolling mill fog removal's air inlet end and air-out end pressure differential sensor of pressure differential, the filter screen sets up in filtering the casing, separates filtering the casing for air inlet cavity and air-out cavity, filtering the one end of casing and being equipped with the air intake, with filtering the air inlet cavity intercommunication of casing, filtering the one end of casing and being equipped with the air outlet, with filtering the air-out cavity intercommunication of casing, filter belt cleaning device sets up in filtering the casing, filter belt cleaning device, pressure differential sensor are connected with the controller electricity. The device can meet the environmental protection requirement of exhaust emission and has an automatic online cleaning function.
Description
Technical Field
The utility model relates to a cold rolling technical field, concretely relates to oil mist filter equipment is used to rolling mill row fog.
Background
In recent years, with the intensive emergence of various laws and regulations related to environmental protection in China, the requirements for implementing environmental protection in place are more and more strict, and especially the requirements for emission of waste gas are higher. In order to increase yield and benefit, a plurality of steel mills do not make good for environmental emission reaching standards, under the vigorous and integrated control of governments and environmental protection departments at all levels, steel enterprises of 'Jinshan Yinshan is not as good as that of Qingshan of Green Water' begin to recognize that the emission not reaching standards not only pollutes the environment, but also makes the land for the offspring to live useless.
However, the existing single-stand rolling mill mist discharge system is not provided with an oil mist filter device, and cannot meet the emission requirement index of waste gas in environmental protection, so that the design of the oil mist filter device for rolling mill mist discharge becomes a problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a rolling mill is arranged oil mist filter equipment for fog, it makes exhaust emission can satisfy the environmental protection requirement.
The utility model discloses a realize like this: the utility model discloses an oil mist filter equipment for rolling mill fog removal, including filter screen, filter belt cleaning device, controller and be used for gathering oil mist filter equipment for rolling mill fog removal's air inlet end and air-out end pressure differential sensor of pressure differential, the filter screen sets up in filtering the casing, separates filtering the casing for air inlet cavity and air-out cavity, filtering the one end of casing and being equipped with the air intake, with filtering the air inlet cavity intercommunication of casing, filtering the one end of casing and being equipped with the air outlet, with filtering the air-out cavity intercommunication of casing, filter belt cleaning device sets up in filtering the casing, filter belt cleaning device, pressure differential sensor are connected with the controller electricity.
The filter screen is generally designed into three-stage filtration, and the filtration precision is gradually improved.
Furthermore, the pressure difference sensor is electrically connected with the input end of the controller, the pressure difference sensor is used for collecting the pressure difference between the air inlet end and the air outlet end of the oil mist filtering device for the rolling mill mist discharge and transmitting the pressure difference to the controller, the output end of the controller is electrically connected with the filter cleaning device, and the controller is used for controlling the filter cleaning device to be opened or closed.
Further, the controller and the differential pressure sensor are respectively arranged on the outer wall of the filtering shell; and the two acquisition ends of the differential pressure sensor are respectively communicated with the air inlet cavity and the air outlet cavity of the filter shell through pipelines.
Further, the filter cleaning device is positioned on one side or two sides of the filter screen.
Further, filter belt cleaning device includes steam pipe and a plurality of steam nozzle, a plurality of steam nozzle respectively with the steam pipe intercommunication, be equipped with steam pipe electric valve on the steam pipe, steam pipe electric valve is connected with the controller electricity, the controller is used for controlling steam pipe electric valve to open, carries out high temperature steam through steam nozzle to the filter screen of filter and washs.
Further, the nozzle opening of the steam nozzle faces the filter screen.
Further, the steam pipe electric valve is positioned outside the filtering shell; the steam pipe in the filtering shell extends out of the filtering shell from the top surface and is communicated with the steam inlet pipeline.
The utility model has the advantages that: this oil mist filter device for rolling mill row's fog sets up the filter screen and filters the oil mist, be equipped with pressure differential sensor on the filter, pressure differential sensor is used for gathering the pressure differential between the air inlet end and the air-out end of oil mist filter device for rolling mill row's fog, and transmit for the controller, when the filter screen blocks up or ventilates not smoothly, pressure differential reaches the setting value, the controller sends the warning, and convey alarm information to well accuse PLC, treat the idle time that the fog system does not work, alright start the controller, and then open the steam pipe electric valve and carry out high-temperature steam washing to the filter screen, the automatic cleaning program has been set for inside the controller, also the cleaning process of can be intervened by force by man, stop carrying out high-.
Drawings
Fig. 1 is a schematic structural view of an oil mist filtering device for mist discharge of a rolling mill of the present invention;
FIG. 2 is a schematic view of FIG. 2 taken along line A;
fig. 3 is a schematic view of the internal structure of the oil mist filtering device for mist discharge of the rolling mill of the present invention;
fig. 4 is the schematic diagram of the oil mist filtering device for mist discharge of the rolling mill of the utility model applied to the mist discharge system of the single-stand rolling mill.
In the drawing, 1 is a mist exhaust fan assembly, 2 is a mist exhaust cover, 21 is a main exhaust pipe, 22 is a branch exhaust pipe, 23 is an inlet cover suction port, 24 is a body inlet suction port, 25 is an inlet transmission side cover suction port, 26 is a body inlet transmission side cover suction port, 27 is a body outlet suction port, 28 is an outlet cover suction port, 29 is a body outlet transmission side cover suction port, 210 is an outlet transmission side cover suction port, 211 is an inlet base lower suction port, 212 is an outlet base lower suction port, 3 is an oil mist filter device for rolling mill mist exhaust, 31 is a filter housing, 32 is a filter screen, 33 is a steam pipe, 34 is a steam nozzle, 35 is a steam pipe electric valve, 36 is a controller, 37 is a differential pressure sensor, 4 is a first pipeline, and 5 is a second pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to 4, the embodiment discloses an oil mist filtering device for rolling mill mist discharge, which includes a filter screen 32, a filter cleaning device, a controller 36 and a differential pressure sensor for collecting a differential pressure between an air inlet end and an air outlet end of the oil mist filtering device for rolling mill mist discharge, wherein the filter screen is arranged in a filter housing 31 to divide the filter housing into an air inlet cavity and an air outlet cavity, an air inlet is arranged at one end of the filter housing and is communicated with the air inlet cavity of the filter housing, an air outlet is arranged at one end of the filter housing and is communicated with the air outlet cavity of the filter housing, the filter cleaning device is arranged in the filter housing, and the filter cleaning device and the differential pressure sensor are electrically connected with the controller.
Further, the differential pressure sensor 37 is electrically connected with an input end of the controller, the differential pressure sensor is used for collecting the differential pressure between an air inlet end and an air outlet end of the oil mist filtering device for rolling mill mist discharge and transmitting the differential pressure to the controller, an output end of the controller is electrically connected with the filter cleaning device, and the controller is used for controlling the filter cleaning device to be opened or closed, and can be manually controlled or automatically controlled. And the controller is connected with the central control PLC. The controller is used for sending alarm information to the central control PLC, and after the oil mist filtering device stops working, the opening of the filter cleaning valve can be controlled through the controller. This patent also can show through the display screen and arrange the pressure differential between oil mist filter equipment's air inlet end and the air-out end for the fog.
Further, the controller and the differential pressure sensor are respectively arranged on the outer wall of the filtering shell; and the two acquisition ends of the differential pressure sensor are respectively communicated with the air inlet cavity and the air outlet cavity of the filter shell through pipelines.
Further, the filter cleaning device is positioned on one side or two sides of the filter screen.
Further, filter belt cleaning device includes steam pipe 33 and a plurality of steam nozzle 34, a plurality of steam nozzles respectively with the steam pipe intercommunication, be equipped with steam pipe electric valve 35 on the steam pipe, steam pipe electric valve is connected with the controller electricity, the controller is used for controlling steam pipe electric valve to open, carries out high temperature steam through steam nozzle to the filter screen of filter and washs.
Further, the nozzle opening of the steam nozzle faces the filter screen.
Further, the steam pipe electric valve is positioned outside the filtering shell; the steam pipe in the filtering shell extends out of the filtering shell from the top surface and is communicated with the steam inlet pipeline.
Example two
Referring to fig. 1 to 4, the embodiment discloses a single-stand rolling mill mist exhaust system, which comprises a mist exhaust cover 2 and a mist exhaust fan assembly 1, wherein the mist exhaust cover is provided with at least one air suction port, a rolling mill mist exhaust oil mist filter device 3 is arranged between an air outlet of the mist exhaust cover and an air inlet of the mist exhaust fan assembly, an air inlet of the rolling mill mist exhaust oil mist filter device is communicated with an air outlet of the mist exhaust cover through a first pipeline 4, an air outlet of the rolling mill mist exhaust oil mist filter device is communicated with an air inlet of the mist exhaust fan assembly through a second pipeline 5, the rolling mill mist exhaust oil mist filter device comprises a filter screen, the filter screen is arranged in a filter shell and divides the filter shell into an air inlet cavity and an air outlet cavity, one end of the filter shell is provided with an air inlet communicated with the air inlet cavity of the filter shell, and one end of the filter shell is provided with an, and the air outlet cavity of the filtering shell is communicated with the air outlet cavity of the filtering shell, and a filter cleaning device is arranged in the filtering shell.
The oil mist filtering device for the rolling mill mist exhaust further comprises a controller and a differential pressure sensor, the differential pressure sensor is electrically connected with an input end of the controller, the differential pressure sensor is used for collecting the differential pressure between an air inlet end and an air outlet end of the oil mist filtering device for the rolling mill mist exhaust and transmitting the differential pressure to the controller, an output end of the controller is electrically connected with the filter cleaning device, and when the controller detects that the differential pressure between the air inlet end and the air outlet end of the oil mist filtering device for the rolling mill mist exhaust is larger than a set value, the controller is connected with the central control PLC. The controller is used for sending alarm information to the central control PLC, and after the oil mist filtering device stops working, the opening of the filter cleaning valve can be controlled through the controller.
Further, the controller and the differential pressure sensor are respectively arranged on the outer wall of the filtering shell. And the two acquisition ends of the differential pressure sensor are respectively communicated with the air inlet cavity and the air outlet cavity of the filter shell through pipelines.
Furthermore, the filter cleaning device is positioned at one side or two sides of the filter screen; the filter cleaning device comprises a steam pipe and a plurality of steam nozzles, wherein the steam pipes are communicated with the steam nozzles respectively, a steam pipe electric valve is arranged on the steam pipe and electrically connected with a controller, the controller is used for controlling the steam pipe electric valve to be opened, and high-temperature steam cleaning is carried out on a filter screen of the filter through the steam nozzles. The steam pipe electric valve is positioned outside the filtering shell.
Furthermore, a main exhaust pipe 21 is arranged in the mist exhaust hood 2, an air outlet of the main exhaust pipe is communicated with an air inlet of the oil mist filter unit through a first pipeline, the main exhaust pipe is provided with a plurality of air inlets, a plurality of branch exhaust pipes 22 are externally connected to the air inlets of the main exhaust pipe, electric valves are arranged on the branch exhaust pipes, air suction ports at the tail ends of the branch exhaust pipes respectively correspond to corresponding parts of the rolling mill 1, and the corresponding parts are key areas determined according to aerodynamics, hydrodynamics and practical experience summary, such as an inlet hood suction port 23, a body inlet suction port 24, an inlet transmission side hood suction port 25, a body inlet transmission side hood suction port 26, a body outlet suction port 27, an outlet hood suction port 28, a body outlet transmission side hood suction port 29, an outlet transmission side hood suction port 210, an inlet base lower part suction port 211 and an outlet base lower part suction port 212. The whole rolling mill mist exhaust cover is a large assembly structural member and mainly comprises an inlet cover, a rolling mill body outlet cover and an outlet cover according to the running direction of strip steel, wherein the body refers to a rolling system working area of a rolling mill 1, namely a rolling area. The inlet drive side cover refers to the drive side of the inlet cover. The outlet transmission side cover refers to the transmission side of the outlet cover. Each cover is divided into an operating side and a drive side. The inlet base 11 and the outlet base 12 refer to bases of inlet and outlet auxiliary equipment on both sides of the rolling mill body. An electric valve is arranged on the branch pipe in the fog exhaust cover, and the opening degree of the valve can be set at will according to the amount of steam at different parts; the air suction opening of each branch pipe outside the fog exhaust cover is provided with a valve for manually adjusting the opening degree, and the tail ends of the branch pipes are designed into horn mouths with different sizes so as to distinguish the size of air suction volume, thereby realizing more accurate suction on fog generating parts to achieve a good fog exhaust effect. The structure is ingenious in design, simple and easy to implement.
Furthermore, an air suction opening at the tail end of the branch exhaust pipe is a horn mouth; the bell mouths of the air suction openings at the tail ends of the branch exhaust pipes are different in size.
Furthermore, an air suction opening at the tail end of the branch exhaust pipe is provided with a valve for manually adjusting the opening degree.
Furthermore, the fog exhaust fan assembly is driven by a variable frequency motor. The fog-discharging fan assembly is driven by a variable frequency motor, and can meet the requirement of total air quantity of fog discharge by variable frequency speed regulation according to the steam quantity generated in the rolling process of a rolling mill and the environmental temperature difference caused by seasonal factors without wasting electric power; the adoption of the variable frequency motor can reduce the impact of the starting of the fan on the power grid.
Furthermore, a fire damper and a fire damper flexible connection are arranged between the air inlet of the oil mist filter unit and the air outlet of the mist discharge cover.
Furthermore, an air door is arranged between an air outlet of the oil mist filtering device for the rolling mill mist discharge and an air inlet of the mist discharge fan assembly.
Furthermore, an electric execution valve is arranged between the air outlet of the oil mist filtering device for the rolling mill mist discharge and the air inlet of the mist discharge fan assembly and used for adjusting the size of the air inlet of the air door. According to the invention, the electric execution valve for adjusting the size of the air door is arranged between the air outlet of the oil mist filter unit and the air inlet of the mist exhaust fan assembly, the air door is closed through the electric execution valve so as to facilitate the starting of the fan, and the air door is enlarged through the electric execution valve after the fan is started so as to facilitate the suction of mist.
Furthermore, a guide plate is arranged in the fog exhaust cover to prevent steam from dripping on the strip steel after being exposed when meeting cold, thereby influencing the surface quality of the strip steel. The fog-discharging cover is arranged on the top of the rolling mill.
Because the utility model discloses a rationalized structural design, this arrange fog device has solved the not good technological problem of single-frame rolling mill row fog effect effectively, has satisfied the environmental protection and has required the index to the emission of waste gas, has improved workman operational environment, and it has advantages such as the small investment, the cycle is short, with low costs, exhaust emission can satisfy the environmental protection requirement.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a rolling mill is oil mist filter equipment for row's fog which characterized in that: the filter cleaning device is arranged in the filter shell, and is electrically connected with the controller.
2. The rolling mill oil mist filter device for mist discharge according to claim 1, wherein: the pressure difference sensor is electrically connected with the input end of the controller, the pressure difference sensor is used for collecting the pressure difference between the air inlet end and the air outlet end of the oil mist filtering device for rolling mill mist discharge and transmitting the pressure difference to the controller, the output end of the controller is electrically connected with the filter cleaning device, and the controller is used for controlling the filter cleaning device to be opened or closed.
3. The rolling mill oil mist filter device for mist discharge according to claim 1, wherein: the controller and the differential pressure sensor are respectively arranged on the outer wall of the filtering shell; and the two acquisition ends of the differential pressure sensor are respectively communicated with the air inlet cavity and the air outlet cavity of the filter shell through pipelines.
4. The rolling mill oil mist filter device for mist discharge according to claim 1, wherein: the filter cleaning device is positioned on one side or two sides of the filter screen.
5. The rolling mill oil mist filter device for mist discharge according to claim 1, wherein: the filter cleaning device comprises a steam pipe and a plurality of steam nozzles, wherein the steam pipes are communicated with the steam nozzles respectively, a steam pipe electric valve is arranged on the steam pipe and electrically connected with a controller, the controller is used for controlling the steam pipe electric valve to be opened, and high-temperature steam cleaning is carried out on a filter screen of the filter through the steam nozzles.
6. The rolling mill oil mist filter device for mist exhaust of claim 5, wherein: the nozzle opening of the steam nozzle faces the filter screen.
7. The rolling mill oil mist filter device for mist exhaust of claim 5, wherein: the steam pipe electric valve is positioned outside the filtering shell; the steam pipe in the filtering shell extends out of the filtering shell from the top surface and is communicated with the steam inlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254170.3U CN211635598U (en) | 2019-12-16 | 2019-12-16 | Oil mist filtering device for mist discharge of rolling mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254170.3U CN211635598U (en) | 2019-12-16 | 2019-12-16 | Oil mist filtering device for mist discharge of rolling mill |
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| CN211635598U true CN211635598U (en) | 2020-10-09 |
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| CN201922254170.3U Active CN211635598U (en) | 2019-12-16 | 2019-12-16 | Oil mist filtering device for mist discharge of rolling mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797355A (en) * | 2022-05-07 | 2022-07-29 | 武汉钢铁有限公司 | Cold rolling five-stand rolling mill oil mist treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797355A (en) * | 2022-05-07 | 2022-07-29 | 武汉钢铁有限公司 | Cold rolling five-stand rolling mill oil mist treatment system |
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