CN215593102U - Automatic air distributing device of blast furnace fan - Google Patents
Automatic air distributing device of blast furnace fan Download PDFInfo
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- CN215593102U CN215593102U CN202122381256.XU CN202122381256U CN215593102U CN 215593102 U CN215593102 U CN 215593102U CN 202122381256 U CN202122381256 U CN 202122381256U CN 215593102 U CN215593102 U CN 215593102U
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Abstract
The utility model discloses an automatic air distributing device of a blast furnace fan, which comprises: a plurality of blast furnace blower units, the blast furnace blower unit includes: the fan is connected with the blast furnace through an air pipe; a wind-spreading device, the wind-spreading device comprising: the connecting pipes are connected between every two air pipes; an electric valve block mounted on the connection pipe; and the PLC is electrically connected with the electric valve group. Through the design of the structure, when one or more fans are out of order and stop working, the PLC controls the electric regulating valve to be opened, so that the normal production of the corresponding blast furnace is ensured, the major accident of slag filling at the tuyere of the blast furnace is prevented, and the economic loss is avoided.
Description
Technical Field
The utility model relates to the technical field of blast furnace air distribution, in particular to an automatic air distribution device of a blast furnace fan.
Background
The fan is the heart of the blast furnace, the running state of the fan is directly related to whether the production of the blast furnace is normal or not and the fan is limited by a power supply mode and factors of the fan, so that the fan cannot break down to cause a shutdown accident. If the running fan is stopped to stop for reasons, even if the wind is cut off instantly, the serious accident of slag pouring at the blast furnace tuyere is caused, and the blast furnace is forced to be stopped urgently due to great loss. Aiming at the phenomenon, the automatic air-distributing device of the blast furnace fan is additionally arranged between the fan and the blast furnace mesh pipe, so that the major accident of slag filling at the blast furnace tuyere is prevented, and the huge economic loss is saved.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.
In order to at least partially solve the above problems, the present invention provides an automatic air-distributing device for a blast furnace blower, comprising: a plurality of blast furnace blower units, the blast furnace blower unit includes: the fan is connected with the blast furnace through an air pipe;
a wind-spreading device, the wind-spreading device comprising:
the connecting pipes are connected between every two air pipes;
an electric valve block mounted on the connection pipe;
and the PLC is electrically connected with the electric valve group.
Preferably, the electric valve block includes: and the electric regulating valve is installed on the connecting pipe and is electrically connected with the PLC.
Preferably, the electric valve block further comprises: the electric butterfly valve is arranged on each of two sides of the electric regulating valve.
Preferably, the number of the blast furnace blower units is at least 3.
Preferably, the PLC controller is electrically connected with an HMI operation panel.
Preferably, the method further comprises the following steps: and the pressure sensor is arranged in the air pipe and close to the blast furnace, and is electrically connected with the PLC.
Preferably, the nominal diameter of the connecting tube is 630 mm.
Preferably, the method further comprises the following steps: and the temperature sensor is arranged in the air pipe and close to the blast furnace, and is electrically connected with the PLC.
Preferably, the method further comprises the following steps: and the fault detection sensor is electrically connected with the PLC.
Compared with the prior art, the utility model at least comprises the following beneficial effects:
according to the automatic air distribution device for the blast furnace fan, due to the structural design, when one or more fans break down and stop working, the PLC controls the electric regulating valve to be opened, so that the normal production of the corresponding blast furnace is ensured, the major accident of slag filling at the air opening of the blast furnace is prevented, and the economic loss is avoided.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
In the drawings:
fig. 1 is a schematic view of the installation of an automatic air distribution device of a blast furnace fan according to the present invention.
In the figure: 1 is a fan; 2 is an air pipe; 3 is a blast furnace; 4 is a connecting pipe; 5 is an electric regulating valve; 6 is an electric butterfly valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, the present invention provides an automatic air-distributing device for a blast furnace blower, comprising: a plurality of blast furnace blower units, the blast furnace blower unit includes: the device comprises a fan 1, wherein the fan 1 is connected with a blast furnace 3 through an air pipe 2;
a wind-spreading device, the wind-spreading device comprising:
the connecting pipes 4 are connected between every two air pipes 2;
an electric valve group mounted on the connection pipe 4;
and the PLC is electrically connected with the electric valve group.
The working principle of the technical scheme is as follows: when fan 1 normally works, connecting pipe 4 is sealed to the electronic valves on connecting pipe 4, and the hot-blast furnace 3 that blows in corresponding through tuber pipe 2 that blow off of fan 1 this moment, when one of them or a plurality of fan 1 breaks down and the during stop work appears, the electronic valves on connecting pipe 4 that PLC controller control it corresponds is opened, makes the interior hot-blast of its adjacent tuber pipe 2 blow in through corresponding connecting pipe 4 to guarantee the normal production of blast furnace 3.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, when one or more fan 1 breaks down and the stop work, open through PLC controller control electric valve group to guarantee the normal production of the blast furnace 3 that corresponds, prevent that 3 emergence wind gaps of blast furnace from irritating the major accident of sediment, avoid causing economic loss.
In one embodiment, the motorized valve pack comprises: and the electric control valve 5 is installed on the connecting pipe 4, and the electric control valve 5 is electrically connected with the PLC.
The working principle and the beneficial effects of the technical scheme are as follows: when one or more fans 1 are out of order and stop working, the PLC controls the electric regulating valves 5 on the corresponding connecting pipes 4 to be opened, so that hot air in the adjacent air pipes 2 is blown in through the corresponding connecting pipes 4, and normal production of the blast furnace 3 is guaranteed.
In one embodiment, the motorized valve pack further comprises: electric butterfly valve 6, 5 both sides of electrical control valve all are equipped with electric butterfly valve 6.
The working principle of the technical scheme is as follows: electric butterfly valve 6 is in the open mode all the time, and when fan 1 normal operating, electrical control valve 5 is in the closed condition, when fan 1 broke down, PLC controller control electrical control valve 5 opened, if appeared when electrical control valve 5 broke down and closed after opening, closed through manual or electric mode control electric butterfly valve 6, was convenient for overhaul electric control valve 5.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, when electric control valve 5 breaks down and can't close, close through manual or electric mode control electric butterfly valve 6, be convenient for overhaul electric control valve 5, all be provided with electric butterfly valve 6 in 5 both sides of electric control valve, can further guarantee that at least one electric butterfly valve 6 can close, realize sealing connecting pipe 4 to overhaul electric control valve 5.
In one embodiment, the number of the blast furnace blower units is at least 3.
The working principle and the beneficial effects of the technical scheme are as follows: at least 3 groups of blast furnace fan sets are arranged, so that the possibility of the failure of all the fans 1 can be reduced, and the normal work of the blast furnace 3 is ensured.
In one embodiment, the PLC controller is electrically connected to an HMI operating panel.
The working principle and the beneficial effects of the technical scheme are as follows: when fan 1 broke down, PLC controller automatic control corresponds electrical control valve 5 and opens, and when fan 1 normal operating, operating personnel can control electrical control valve 5 through HMI operating panel according to on-the-spot actual production situation to the hot-blast even that insufflates in blast furnace 3 is guaranteed, prevents that one of them fan 1 from being when promptly will the stop work, corresponds the hot-blast interruption of blowing in blast furnace 3.
In one embodiment, further comprising: and the pressure sensor is arranged in the air pipe 2 and close to the blast furnace 3, and is electrically connected with the PLC.
The working principle and the beneficial effects of the technical scheme are as follows: pressure sensor is used for detecting the wind pressure of blowing in blast furnace 3 to survey the amount of wind, when the wind pressure differential value between two tuber pipes 2 is greater than 0.1Mpa, pressure sensor gives the PLC controller with signal transmission, PLC controller control electrical control valve 5 opens, make one side tuber pipe 2 that the wind pressure is big with the little one side tuber pipe 2 of wind pressure of hot-blast blowin, thereby guarantee to blow in that hot-blast in every blast furnace 3 is even, improve blast furnace 3's production quality.
In one embodiment, the nominal diameter of the connecting tube 4 is 630 mm.
The working principle and the beneficial effects of the technical scheme are as follows: the connecting pipe 4 is a pipeline of DN630 model, so that the flow rate of hot air is smooth and uniform.
In one embodiment, further comprising: and the temperature sensor is arranged in the air pipe 2 and close to the blast furnace 3, and is electrically connected with the PLC.
The working principle and the beneficial effects of the technical scheme are as follows: the temperature sensor is used for detecting the temperature of hot air blown into the blast furnace 3, and the temperature sensor transmits a temperature signal to the PLC controller so as to control the electric regulating valve 5 and ensure that the interior of each blast furnace 3 is heated uniformly.
In one embodiment, further comprising: and the fault detection sensor is electrically connected with the PLC.
The working principle and the beneficial effects of the technical scheme are as follows: when fan 1 broke down, transmitted fault signal for PLC controller by the fault detection sensor to control electrical control valve 5, reduced the early warning time, improved reaction rate, make fan 1 broke down the very first time, the PLC controller received fault signal immediately and opened electrical control valve 5, further guaranteed the normal production of blast furnace 3, reduced economic loss.
Finally, it should be noted that: the foregoing is only a preferred embodiment of the utility model. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made therein without departing from the spirit and scope of the utility model.
Claims (9)
1. The utility model provides an automatic wind device that dials of blast furnace fan which characterized in that includes:
a plurality of blast furnace blower units, the blast furnace blower unit includes: the air blower (1) is connected with the blast furnace (3) through an air pipe (2);
a wind-spreading device, the wind-spreading device comprising:
the air pipes (2) are connected with the connecting pipes (4) in pairs;
an electric valve group mounted on the connection pipe (4);
and the PLC is electrically connected with the electric valve group.
2. The automatic air distribution device of the blast furnace blower according to claim 1, wherein the electric valve group comprises: electric control valve (5), install electric control valve (5) on connecting pipe (4), electric control valve (5) with the PLC controller electricity is connected.
3. The automatic air distribution device of the blast furnace blower according to claim 2, wherein the electric valve group further comprises: the electric butterfly valve (6) is arranged on each of two sides of the electric control valve (5).
4. The automatic air distribution device of the blast furnace blower according to claim 1, wherein the number of the blast furnace blower units is at least 3.
5. The automatic air distribution device of the blast furnace fan as claimed in claim 1, wherein the PLC controller is electrically connected with an HMI operation panel.
6. The automatic air distribution device of the blast furnace blower according to claim 1, further comprising: the pressure sensor is arranged in the air pipe (2) and close to the blast furnace (3), and the pressure sensor is electrically connected with the PLC.
7. The automatic air distribution device of the blast furnace blower according to claim 1, wherein the nominal diameter of the connecting pipe (4) is 630 mm.
8. The automatic air distribution device of the blast furnace blower according to claim 1, further comprising: and the temperature sensor is arranged in the air pipe (2) and close to the blast furnace (3), and is electrically connected with the PLC.
9. The automatic air distribution device of the blast furnace blower according to claim 1, further comprising: and the fault detection sensor is electrically connected with the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122381256.XU CN215593102U (en) | 2021-09-29 | 2021-09-29 | Automatic air distributing device of blast furnace fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122381256.XU CN215593102U (en) | 2021-09-29 | 2021-09-29 | Automatic air distributing device of blast furnace fan |
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| Publication Number | Publication Date |
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| CN215593102U true CN215593102U (en) | 2022-01-21 |
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| CN202122381256.XU Active CN215593102U (en) | 2021-09-29 | 2021-09-29 | Automatic air distributing device of blast furnace fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491448A (en) * | 2022-09-14 | 2022-12-20 | 山东莱钢永锋钢铁有限公司 | Blast furnace cold air security system and method |
-
2021
- 2021-09-29 CN CN202122381256.XU patent/CN215593102U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491448A (en) * | 2022-09-14 | 2022-12-20 | 山东莱钢永锋钢铁有限公司 | Blast furnace cold air security system and method |
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