CN112023588A - Automatic dust separation and purification control method and system - Google Patents
Automatic dust separation and purification control method and system Download PDFInfo
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- CN112023588A CN112023588A CN202010894332.4A CN202010894332A CN112023588A CN 112023588 A CN112023588 A CN 112023588A CN 202010894332 A CN202010894332 A CN 202010894332A CN 112023588 A CN112023588 A CN 112023588A
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Abstract
The invention discloses a dust automatic separation and purification control method and a system, belonging to the field of particle separation and purification, wherein the system comprises: the system comprises a central control logic unit, a fan control unit, an adsorption liquid cleanliness detection unit, a dust collection weight detection unit, an air suction inlet air speed detection unit, a dust collector cleaning and replacing alarm unit and a dust collector cleaning and replacing alarm unit; the central control logic unit is used for controlling the fan control unit to control the fan to start according to the set working rotating speed of the fan; the air inlet air speed detection unit is used for detecting the air speed of an air inlet; the dust collection weight detection unit is used for detecting the dust collection weight; the adsorption liquid cleanliness detection unit is used for detecting the cleanliness of the adsorption liquid; and the central control logic unit is also used for judging whether one or more of the dust suction device, the dust replacement device and the adsorption liquid needs to be cleaned or not according to the air speed of the air suction port, the dust collection weight and the cleanliness of the adsorption liquid. The invention can realize the automatic separation and purification control and the rapid adjustment of the rolling mill dust.
Description
Technical Field
The invention belongs to the field of particle separation and purification, is applied to industries with advanced emission ratio of industrial particles such as metallurgy, petroleum processing, chemical industry, building materials, food processing and the like, and particularly relates to an automatic dust separation and purification control method for a rolling mill.
Background
In the hot rolling process of steel, secondary iron scale on the surface of a rolled material can be separated from the surface of the rolled material along with the extrusion of a roller, and a large amount of iron scale dust is generated. Especially, when silicon steel is rolled, a large amount of oxidized dust is generated. The dust of the rolling mill pollutes the whole plant area environment and is a main dust pollution source of a steel rolling mill.
The current common dust fall mode is a mode combining wet dust removal and fan dust removal, and rolling mill dust is wrapped and pressed in a certain range by utilizing a method of dust pressing by water flow or dust removing by water mist in a rolling mill; then the dust is sucked into the dust removal flue by the dust removal fan; finally, the plastic plate is collected and separated and then is discharged to the atmosphere. The dust removal mode has the defects that the dust removal fan is far away from a dust source point, so that more than 50% of dust cannot be sucked, and the dust removal efficiency is low. In addition, the dust generated by the rolling mill in the rolling process of the steel strip has certain speed and temperature, and the rolling mill is in an open structure, so that most of the dust is diffused outwards in the rolling process and is difficult to collect, and the average dust concentration above the rolling mill housing is measured to be 93.8mg/m in an actual site3The maximum value reaches 158.7mg/m3。
Meanwhile, the particles of the mill dust are very fine (micron level), can be lifted and dispersed along with hot air, are easy to deposit in the deep lung of a human body, and have great harm to health. And fine oxide particle dust can shorten the service life of on-site electronic equipment, is deposited on a rolling mill stand and a travelling rail, and falls on a plate belt at a later stage to influence the surface quality of a product. The dust wrapping condition of the rolling mill dust is improved to a certain extent by the dust pressing mode of water mist, but the phenomenon that the dust is gathered on the rolling mill is difficult to fundamentally solve.
Therefore, how to realize a dust removing and collecting method close to a dust source point of a rolling mill and realize automatic dust separation and purification control on the dust source point of the rolling mill is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a dust automatic separation and purification control method and system, which can carry out dust removal and dust collection fast adjustment and feed back an adjustment result according to a set requirement, and have the advantages of simple structure, stable operation, safety and reliability.
To achieve the above object, according to one aspect of the present invention, there is provided an automatic dust separation and purification control system, comprising: the system comprises a central control logic unit, a fan control unit, an adsorption liquid cleanliness detection unit, a dust collection weight detection unit, an air suction inlet air speed detection unit, a dust collector cleaning and replacing alarm unit and a dust collector cleaning and replacing alarm unit;
the output end of the central control logic unit is respectively connected with the signal input ends of the fan control unit, the adsorption liquid cleanliness detection unit, the dust collection weight detection unit and the air inlet air speed detection unit; the dust collection weight detection unit is connected with the dust collector cleaning and replacing alarm unit, the dust collector cleaning and replacing alarm unit is connected with the adsorption liquid cleanliness detection unit, and the air inlet air speed detection unit is connected with the dust collector cleaning and replacing alarm unit;
the central control logic unit is used for controlling the fan control unit, and the fan control unit controls the fan to start according to the set fan working speed;
the air inlet air speed detection unit is used for detecting the air speed of the air inlet; the dust collection weight detection unit is used for detecting the dust collection weight; the adsorption liquid cleanliness detection unit is used for detecting the cleanliness of the adsorption liquid;
the central control logic unit is also used for judging whether one or more of a dust suction device, a cleaning and replacing dust collection device and adsorption liquid needs to be cleaned and replaced according to the detected air speed of the air suction port, the dust collection weight and the cleanliness of the adsorption liquid, and starting the dust collector cleaning and replacing alarm unit to clean and replace the dust suction device when the dust suction device needs to be cleaned and replaced, and starting the dust collector cleaning and replacing alarm unit to clean and replace the dust collection device and/or the adsorption liquid when the dust collector needs to be cleaned and replaced and/or the adsorption liquid needs to be cleaned and replaced.
Preferably, the central control logic unit is further configured to make the following settings: the working speed r of the fan; wind speed standard value v of air suction inlet0And a deviation value α; dust collection weight standard value g0And a deviation value beta; adsorption liquid cleanliness standard value n0And a deviation value theta.
Preferably, the central control logic unit is used for meeting the condition that v ≧ v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta is satisfied, it is judged that the cleaning and replacement of the dust collecting device, and the adsorption liquid are not necessary, and v is not less than v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0And when the sum is theta, judging that one or more of the dust suction device, the dust collecting device and the adsorption liquid need to be cleaned and replaced, wherein v represents the detected air speed of the air suction port, g represents the detected dust collecting weight, and n represents the detected cleanliness of the adsorption liquid.
Preferably, the central control logic unit is also used to implement automatic and/or manual system error settings.
Preferably, the air suction opening of the dust suction device is arranged on the water cutting plate device of the rolling mill.
According to another aspect of the present invention, there is provided an automatic dust separation and purification control method, comprising:
the central control logic unit controls the fan control unit, and the fan control unit controls the fan to start according to the set working rotating speed of the fan;
detecting the wind speed of the air suction opening through the air speed detection unit of the air suction opening; detecting the dust collection weight through a dust collection weight detection unit; detecting the cleanliness of the adsorption liquid by an adsorption liquid cleanliness detection unit;
the central control logic unit judges whether one or more of a dust suction device, a dust collection device and adsorption liquid needs to be cleaned and replaced or not according to the detected wind speed of the air suction port, the dust collection weight and the cleanliness of the adsorption liquid, when the dust suction device needs to be cleaned and replaced, the dust collector cleaning and replacing alarm unit is started to clean and replace the dust suction device, and when the dust collector and/or the adsorption liquid needs to be cleaned and replaced, the dust collector cleaning and replacing alarm unit is started to clean and replace the dust collection device and/or the adsorption liquid.
Preferably, the method further comprises:
the central control logic unit makes the following settings: the working speed r of the fan; wind speed standard value v of air suction inlet0And a deviation value α; dust collection weight standard value g0And a deviation value beta; adsorption liquid cleanliness standard value n0And a deviation value theta.
Preferably, the method further comprises: the central control logic unit meets the condition that v is more than or equal to v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta is satisfied, it is judged that the cleaning and replacement of the dust collecting device, and the adsorption liquid are not necessary, and v is not less than v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0And when the sum is theta, judging that one or more of the dust suction device, the dust collecting device and the adsorption liquid need to be cleaned and replaced, wherein v represents the detected air speed of the air suction port, g represents the detected dust collecting weight, and n represents the detected cleanliness of the adsorption liquid.
Preferably, the method further comprises: automatic and/or manual system error setting is achieved by a central control logic unit.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) the automatic separation and purification control and the quick adjustment of the dust of the rolling mill are realized through a central control logic unit, a fan control unit, an adsorption liquid cleanliness detection unit, a dust collection weight detection unit, an air speed detection unit of an air suction port, a dust collector cleaning and replacement alarm unit and a dust collector cleaning and replacement alarm unit.
(2) By designing the adsorption liquid cleanliness detection unit, the dust collection weight detection unit and the air speed detection unit of the air suction port, important physical quantities such as air speed of the air suction port, cleanliness of the adsorption liquid, dust collection weight and the like are detected in real time, and the functions of dynamic following and quick response of dust separation and purification of the rolling mill are realized.
(3) The suction inlet structure is designed, and the suction inlet is arranged on the water cutting plate device of the rolling mill, so that the purpose that the suction inlet is close to a dust source point is realized, and the dust suction of the rolling mill is ensured.
(4) The designed central logic control unit can judge whether to replace the cleaning agent of the air suction opening and the dust collection chamber according to the set requirements and the implementation condition of the control logic, and a manual control interface is reserved.
Drawings
Fig. 1 is a schematic structural diagram of an automatic dust separation and purification control system provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a dust collecting apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a dust suction apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a dust automatic separation and purification control method according to an embodiment of the present invention;
wherein, 1-dust collector weight detector; 2-a dust collection chamber; 3-separating the inner interlayer and the outer interlayer; 4-an adsorption liquid pipeline; 5-guide vanes; 6-a filter packing chamber; 7-separation clean gas outlet; 8-a dust collector viewing port; 9-dust chamber dust discharging port; 10-rolling mill water cutting plate; 11-a secondary dust suction port; 12-primary dust suction port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example one
Fig. 1 is a schematic structural diagram of an automatic dust separation and purification control system according to an embodiment of the present invention, including: the system comprises a central control logic unit, a fan control unit, an adsorption liquid cleanliness detection unit, a dust collection weight detection unit, an air suction inlet air speed detection unit, a dust collector cleaning and replacing alarm unit and a dust collector cleaning and replacing alarm unit;
the output end of the central control logic unit is respectively connected with the signal input ends of the fan control unit, the adsorption liquid cleanliness detection unit, the dust collection weight detection unit and the air inlet air speed detection unit; the dust collection weight detection unit is connected with the dust collector cleaning and replacing alarm unit, the dust collector cleaning and replacing alarm unit is connected with the adsorption liquid cleanliness detection unit, and the air speed detection unit at the air suction port is connected with the dust collector cleaning and replacing alarm unit;
the central control logic unit is used for controlling the fan control unit, and then the fan control unit controls the fan to start according to the set working rotating speed of the fan;
the air inlet air speed detection unit is used for detecting the air speed of an air inlet; the dust collection weight detection unit is used for detecting the dust collection weight; the adsorption liquid cleanliness detection unit is used for detecting the cleanliness of the adsorption liquid;
the central control logic unit is also used for judging whether one or more of the dust suction device, the dust replacement device and the adsorption liquid needs to be cleaned or not according to the detected air speed of the air suction port, the dust collection weight and the cleanliness of the adsorption liquid, starting the dust collector cleaning and replacement alarm unit to clean and replace the dust suction device when the dust suction device needs to be cleaned and replaced, and starting the dust collector cleaning and replacement alarm unit to clean and replace the dust collection device and/or the adsorption liquid when the dust collector and/or the adsorption liquid needs to be cleaned and replaced.
Further, the central control logic unit is further configured to make the following settings: the working speed r of the fan; air vane of air inletNorm value v0And a deviation value α; dust collection weight standard value g0And a deviation value beta; adsorption liquid cleanliness standard value n0And a deviation value theta.
Further, a central control logic unit for controlling the logic unit when v ≧ v is satisfied0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta is satisfied, it is judged that the cleaning and replacement of the dust collecting device, and the adsorption liquid are not necessary, and v is not less than v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0And when the sum is theta, judging that one or more of the dust suction device, the dust collecting device and the adsorption liquid need to be cleaned and replaced, wherein v represents the detected air speed of the air suction port, g represents the detected dust collecting weight, and n represents the detected cleanliness of the adsorption liquid.
Specifically, v ≧ v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta is satisfied, no adjustment is needed, and v is more than or equal to v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When any one of + theta is not satisfied, corresponding adjustment is needed, for example, v ≧ v0When alpha is not satisfied, the dust suction device needs to be cleaned and replaced, and g is less than or equal to g0When beta is not satisfied, the dust collecting device needs to be cleaned and replaced, and n is less than or equal to n0If + θ is not satisfied, the adsorption solution needs to be replaced.
Further, the central control logic unit is also used to implement automatic and/or manual system error settings.
Further, as shown in fig. 2, a schematic structural diagram of a dust collecting apparatus provided in an embodiment of the present invention includes: the device comprises a dust collector weight detector 1, a dust collection chamber 2, an inner interlayer and an outer interlayer 3 of a separation chamber, an adsorption liquid pipeline 4, a guide blade 5, a filter filling chamber 6, a separated clean gas outlet 7, a dust collector observation port 8 and a dust collection chamber dust discharge port 9. The dust collecting device is matched with the control system of the invention to realize the automatic separation and purification of water, air and dust in the rolling mill dust, and has the functions of automatic calculation, replacement, cleaning and the like.
Further, as shown in fig. 3, a schematic structural diagram of a dust suction device provided by an embodiment of the present invention is shown, and the dust suction device includes: the rolling mill water cutting plate 10, the primary dust suction port 12 and the secondary dust suction port 11 realize large suction side suction of rolling mill dust by matching a dust suction device with a dust removal fan and the control system of the invention, generate a huge negative pressure area at a rolling mill dust generation source point, just surround a dust diffusion area, form a three-dimensional negative pressure area and ensure the suction of the rolling mill dust.
Example two
Fig. 4 is a schematic flow chart of a dust automatic separation and purification control method according to an embodiment of the present invention, which includes:
the central control logic unit controls the fan control unit, and the fan control unit controls the fan to start according to the set working rotating speed of the fan;
detecting the wind speed of the air suction opening through the air speed detection unit of the air suction opening; detecting the dust collection weight through a dust collection weight detection unit; detecting the cleanliness of the adsorption liquid by an adsorption liquid cleanliness detection unit;
and the central control logic unit judges whether one or more of the dust suction device, the dust collection device and the adsorption liquid needs to be cleaned and replaced according to the detected air speed of the air suction port, the dust collection weight and the cleanliness of the adsorption liquid, and starts the dust collector cleaning and replacing alarm unit to clean and replace the dust suction device when the dust suction device needs to be cleaned and replaced, and starts the dust collector cleaning and replacing alarm unit to clean and replace the dust collection device and/or the adsorption liquid when the dust collector and/or the adsorption liquid needs to be cleaned and replaced.
Further, the method further comprises:
the central control logic unit makes the following settings: the working speed r of the fan; wind speed standard value v of air suction inlet0And a deviation value α; dust collection weight standard value g0And a deviation value beta; adsorption liquid cleanliness standard value n0And a deviation value theta.
Further, the method further comprises: the central control logic unit meets the condition that v is more than or equal to v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta is satisfied, it is judged that the cleaning and replacement of the dust collecting device, and the adsorption liquid are not necessary, and v is not less than v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta, it is judged that the cleaning and replacement of the dust collecting device, and the adsorption liquid are requiredOne or more of the following components, wherein v represents the detected air speed of an air suction opening, g represents the detected dust collection weight, and n represents the detected cleanliness of the adsorption liquid.
Further, the method further comprises: automatic and/or manual system error setting is achieved by a central control logic unit.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a dust autosegregation purifies control system which characterized in that includes: the system comprises a central control logic unit, a fan control unit, an adsorption liquid cleanliness detection unit, a dust collection weight detection unit, an air suction inlet air speed detection unit, a dust collector cleaning and replacing alarm unit and a dust collector cleaning and replacing alarm unit;
the output end of the central control logic unit is respectively connected with the signal input ends of the fan control unit, the adsorption liquid cleanliness detection unit, the dust collection weight detection unit and the air inlet air speed detection unit; the dust collection weight detection unit is connected with the dust collector cleaning and replacing alarm unit, the dust collector cleaning and replacing alarm unit is connected with the adsorption liquid cleanliness detection unit, and the air inlet air speed detection unit is connected with the dust collector cleaning and replacing alarm unit;
the central control logic unit is used for controlling the fan control unit, and the fan control unit controls the fan to start according to the set fan working speed;
the air inlet air speed detection unit is used for detecting the air speed of the air inlet; the dust collection weight detection unit is used for detecting the dust collection weight; the adsorption liquid cleanliness detection unit is used for detecting the cleanliness of the adsorption liquid;
the central control logic unit is also used for judging whether one or more of a dust suction device, a cleaning and replacing dust collection device and adsorption liquid needs to be cleaned and replaced according to the detected air speed of the air suction port, the dust collection weight and the cleanliness of the adsorption liquid, and starting the dust collector cleaning and replacing alarm unit to clean and replace the dust suction device when the dust suction device needs to be cleaned and replaced, and starting the dust collector cleaning and replacing alarm unit to clean and replace the dust collection device and/or the adsorption liquid when the dust collector needs to be cleaned and replaced and/or the adsorption liquid needs to be cleaned and replaced.
2. The system of claim 1, wherein the central control logic unit is further configured to: the working speed r of the fan; wind speed standard value v of air suction inlet0And a deviation value α; dust collection weight standard value g0And a deviation value beta; adsorption liquid cleanliness standard value n0And a deviation value theta.
3. The system of claim 2, wherein the central control logic unit is configured to satisfy v ≧ v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta is satisfied, it is judged that the cleaning and replacement of the dust collecting device, and the adsorption liquid are not necessary, and v is not less than v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0And when the sum is theta, judging that one or more of the dust suction device, the dust collecting device and the adsorption liquid need to be cleaned and replaced, wherein v represents the detected air speed of the air suction port, g represents the detected dust collecting weight, and n represents the detected cleanliness of the adsorption liquid.
4. A system according to any of claims 1 to 3, wherein the central control logic unit is further adapted to implement automatic and/or manual system error setting.
5. The system of claim 1, wherein the suction opening of the dust suction device is mounted on a mill water cutting plate device.
6. A dust automatic separation purification control method is characterized by comprising the following steps:
the central control logic unit controls the fan control unit, and the fan control unit controls the fan to start according to the set working rotating speed of the fan;
detecting the wind speed of the air suction opening through the air speed detection unit of the air suction opening; detecting the dust collection weight through a dust collection weight detection unit; detecting the cleanliness of the adsorption liquid by an adsorption liquid cleanliness detection unit;
the central control logic unit judges whether one or more of a dust suction device, a dust collection device and adsorption liquid needs to be cleaned and replaced or not according to the detected wind speed of the air suction port, the dust collection weight and the cleanliness of the adsorption liquid, when the dust suction device needs to be cleaned and replaced, the dust collector cleaning and replacing alarm unit is started to clean and replace the dust suction device, and when the dust collector and/or the adsorption liquid needs to be cleaned and replaced, the dust collector cleaning and replacing alarm unit is started to clean and replace the dust collection device and/or the adsorption liquid.
7. The method of claim 6, further comprising:
the central control logic unit makes the following settings: the working speed r of the fan; wind speed standard value v of air suction inlet0And a deviation value α; dust collection weight standard value g0And a deviation value beta; adsorption liquid cleanliness standard value n0And a deviation value theta.
8. The method of claim 7, further comprising: the central control logic unit meets the condition that v is more than or equal to v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0When + theta is satisfied, it is judged that the cleaning and replacement of the dust collecting device, and the adsorption liquid are not necessary, and v is not less than v0Alpha and g.ltoreq.g0Beta and n is less than or equal to n0+ theta, one or more of the cleaning replacement dust collecting device, the cleaning replacement dust collecting device and the adsorption liquid is/are determined to be neededIn the formula, v represents the detected air speed of an air suction opening, g represents the detected dust collection weight, and n represents the detected cleanliness of the adsorption liquid.
9. The method according to any one of claims 6 to 8, further comprising: automatic and/or manual system error setting is achieved by a central control logic unit.
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| CN202010894332.4A CN112023588A (en) | 2020-08-31 | 2020-08-31 | Automatic dust separation and purification control method and system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759177A (en) * | 2015-02-28 | 2015-07-08 | 孙盼峰 | Automatic dedusting equipment |
| CN105457963A (en) * | 2015-12-31 | 2016-04-06 | 南京诺丹工程技术有限公司 | Cleanable fume cupboard applied to lab or special place |
| CN108815974A (en) * | 2018-08-16 | 2018-11-16 | 德阳市涌鑫机电技术有限公司 | A kind of workshop cleaner |
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2020
- 2020-08-31 CN CN202010894332.4A patent/CN112023588A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759177A (en) * | 2015-02-28 | 2015-07-08 | 孙盼峰 | Automatic dedusting equipment |
| CN105457963A (en) * | 2015-12-31 | 2016-04-06 | 南京诺丹工程技术有限公司 | Cleanable fume cupboard applied to lab or special place |
| CN108815974A (en) * | 2018-08-16 | 2018-11-16 | 德阳市涌鑫机电技术有限公司 | A kind of workshop cleaner |
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Application publication date: 20201204 |