CN214458121U - Hot-blast stove for iron and steel plant - Google Patents
Hot-blast stove for iron and steel plant Download PDFInfo
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- CN214458121U CN214458121U CN202022437037.4U CN202022437037U CN214458121U CN 214458121 U CN214458121 U CN 214458121U CN 202022437037 U CN202022437037 U CN 202022437037U CN 214458121 U CN214458121 U CN 214458121U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 4
- 229910052742 iron Inorganic materials 0.000 title description 2
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010304 firing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model provides a hot-blast furnace that steel factory used, include: a furnace body; the cold air pipe is connected with the furnace body and comprises a first cold air pipe and a second cold air pipe, and the cold air valve is positioned between two ends of the second cold air pipe; the cold air valve is arranged on the first cold air pipe; the pressure equalizing valve is arranged on the second cold air pipe; and the regulating valve is arranged on the second cold air pipe and positioned in front of the pressure equalizing valve. The opening and closing angle of the valve is accurately controlled through the regulating valve, so that efficient furnace replacement operation is realized, and the process efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of machinery, especially, relate to a hot-blast furnace that steel mill used.
Background
The hot blast stove has the function of stabilizing high blast temperature. When the heat of the hot blast stove can not meet the high-temperature requirement, the stove needs to be changed, and the valve can be opened after cold air and hot air are subjected to pressure equalizing in the stove changing process, so that the air supply channel is opened, and the stove changing operation is realized. However, in the manual stamping and furnace changing operation, the pressure equalizing valve is a hydraulic transmission valve, the operation gap is overlarge, and the size of the switch position is not fixed, so that large-range wind pressure fluctuation (fluctuation range of 10-15Kpa) is caused to the blast furnace, and the technical operation of the blast furnace is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hot-blast furnace that steel factory used, the utility model provides a hot-blast furnace that steel factory used, include:
a furnace body;
the cold air pipe is connected with the furnace body and comprises a first cold air pipe and a second cold air pipe, and two ends of the second cold air pipe are connected with the second cold air pipe;
the cold air valve is arranged on the first cold air pipe;
the pressure equalizing valve is arranged on the second cold air pipe;
and the regulating valve is arranged on the second cold air pipe and positioned in front of the pressure equalizing valve.
In one embodiment, one end of the furnace body is connected with a hot air pipeline, and the hot air pipeline is provided with a hot air valve.
In one embodiment, one end of the hot air duct is connected to the hot air port.
In one embodiment, the hot blast valve comprises a butterfly valve and a gate valve.
In one embodiment, one end of the cold air pipe is connected with the furnace body.
In one embodiment, the other end of the cold air pipe is connected with the cold air port.
In one embodiment, the regulating valve comprises a butterfly valve and a gate valve.
In one embodiment, the pressure equalization valve includes a butterfly valve, a gate valve, a cubic valve, and a free standing valve.
In one embodiment, the cold air valve comprises a butterfly valve and a gate valve.
The utility model provides a pair of hot-blast furnace system that steel mill used, include: the hot-blast pipeline, the hot-blast valve, the furnace body, the cold blast valve, first cold blast pipe, the governing valve, the equalizing valve, the second cold blast pipe. The furnace body is mainly used for firing products at high temperature to produce hot air. The cold air valve is mainly used for controlling cold air to flow in and flow out. The governing valve mainly used adjusts the transportation of cold wind in the first cold-blast pipe, accurate control flap's opening and closing angle. The pressure equalizing valve is mainly used for controlling pressure values in the first cold air pipe and the second cold air pipe, and the system is protected to operate safely. When cold air enters the first cold air pipe, the cold air flows into the second cold air pipe, the regulating valve is opened, the pressure equalizing valve is started, and after the pressure of the first cold air pipes on the two sides of the cold air valve is equalized, the cold air valve is opened, so that the hot blast stove starts to work. The opening and closing angle of the valve is accurately controlled through the regulating valve, so that efficient furnace replacement operation is realized, and the process efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings which are needed and practical for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a hot blast stove for a steel plant.
In the drawings, the components represented by the respective reference numerals are listed below:
100-hot air system
101-furnace body
102-Hot air duct
103-hot blast valve
200-cold air system
200 a-first cold air pipe
201-Cold air valve
200 b-regulating device
200 b-second cold air pipe
203-regulating valve
204-pressure equalizing valve
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
In order to realize efficient furnace replacement operation and reduce pressure fluctuation in the first cold air pipe, a hot air furnace for a steel plant is proposed in this embodiment, fig. 1 is a schematic structural diagram of the hot air furnace for the steel plant according to the embodiment of the present invention, please refer to fig. 1, the hot air furnace for the steel plant comprises a hot air system 100, wherein the hot air system 100 comprises a furnace body 101, a hot air pipeline 102 and a hot air valve 103; cold wind valve 201, governing valve 203, pressure equalizing valve 204, cold air hose 400, wherein cold air hose 400 includes first cold air hose 200a and second cold air hose 200 b.
Referring to fig. 1, a hot air system 100 is connected to a furnace body 101 and a cold air pipe 200. The furnace body 101 is arranged on a hot air platform, the hot air valve 103 is arranged on the hot air pipeline 102, and the hot air pipeline 102 is connected with the furnace body 101. The first cold air pipe 200a is connected to the furnace body 101, and the cold air valve 201 is disposed on the first cold air pipe 200 a. Second cold air pipe 200b sets up at the both ends of first cold air pipe 200a, and governing valve 203 sets up on second cold air pipe 200b, and governing valve 203 is located before the pressure equalizing valve 204.
Referring to fig. 1, the furnace body 101 is disposed on the hot air platform, one end of the furnace body 101 is connected to the hot air duct 102, the hot air duct 102 is provided with a hot air valve 103, and the hot air valve 103 is disposed on the hot air duct 102, the hot air valve 103 of the present invention is disposed at the 10m inlet of the hot air duct 102, the hot air valve 103 can be, for example, a butterfly valve or a gate valve, and the hot air valve 103 of the present invention can be, for example, a butterfly valve. Furnace body 101 is connected to hot-blast main 102 'S one end, and hot-blast main 102' S the other end is unsettled, and hot-blast main 102 can set up the shape according to actual environment condition, and hot-blast main 102 for example can be the L type, the S type, the utility model provides a hot-blast main 102 for example is the L type. When hot air flows into the hot air duct 102, the hot air valve 103 is started, the hot air valve 103 is fully opened, the hot air flows to the furnace body 101, the hot air valve 103 is fully closed, and the pressure in the hot air duct 102 is increased.
Referring to fig. 1, a first cold air pipe 200a is connected to the furnace body 101, the first cold air pipe 200a can be disposed at a distributed position according to an actual environment, the first cold air pipe 200a can be, for example, perpendicular to the furnace body 101, inclined at a certain angle to the furnace body 101, and the cold air valve 201 of the present invention is perpendicular to the furnace body 101. One end of the first cold air pipe 200a is connected with the furnace body 101, and the other end of the first cold air pipe 200a is suspended for cold air to enter.
Referring to fig. 1, the cold air valve 201 is disposed on the first cold air pipe 102, and the cold air valve 201 of the present invention is disposed on the pipeline of the first cold air pipe 102. The cold air valve 201 can be, for example, a butterfly valve, a gate valve, the utility model provides a cold air valve 201 can be, for example, a butterfly valve. Cold blast valve 201 mainly used control cold wind flows in and flows out, and when needs cold wind inflow or flow out, cold blast valve 201 is opened, and when not needing cold wind inflow or flow out, cold blast valve 201 closes.
Referring to fig. 1, a pressure equalizing valve 204 is disposed on the second cool air pipe 200b, and the pressure equalizing valve 204 is disposed behind the regulating valve 203 for limiting the pressure inside the second cool air pipe 200 b. The pressure equalizing valve 203 may be, for example, a butterfly valve, a gate valve, a cubic valve, or a self-supporting valve, and the pressure equalizing valve 203 may be, for example, a self-supporting valve. The pressure setting value of the pressure equalizing valve 204 may be, for example, 10 to 15Kpa, and the pressure equalizing valve 204 in the present invention may be, for example, 10Kpa, 12Kpa, 14Kpa, 15 Kpa. The pressure equalizing valve 204 is mainly used for controlling pressure values in the first cold air pipe 200a and the second cold air pipe 200b, limiting the maximum pressure value in the cold air pipe 201, and increasing or decreasing pressure changes in the cold air pipe 201.
Referring to fig. 1, second cold air pipes 200b are disposed at two ends of first cold air pipe 200a, and second cold air pipe 200b may be U-shaped, for example. One end of the second cold air pipe 200b is disposed at one side of the first cold air pipe 102 close to the furnace body 100, and the other end of the second cold air pipe 200b is disposed at one side of the air inlet of the first cold air pipe 102.
Referring to fig. 1, the adjusting valve 203 is disposed on the second cold air pipe 200b, the adjusting valve 203 of the present invention is disposed at one end of the second cold air pipe 200b, and is located before the equalizing valve 204 near the air inlet adjusting valve 203 of the first cold air pipe 200 b. Governing valve 203 sets up in the income wind gap one side of first cold air duct 102, and governing valve 203 is connected with second cold air duct 200b, the utility model discloses well governing valve 203 sets up the top at second cold air duct 200 b. The governing valve 203 is located before the equalizing valve 204, the utility model discloses well governing valve 203 connects equalizing valve 204 through second cold air duct 200 b. The regulating valve 203 may be, for example, a butterfly valve or a gate valve, and the regulating valve 203 of the present invention may be, for example, a butterfly valve. When the angular travel of the regulator valve 203 is zero, the regulator valve 203 is in a fully open state. When the angular stroke of the regulating valve 203 is 90 °, the regulating valve 203 is fully closed. The straight stroke of the regulating valve 203 can be 1mm-5mm, and the straight stroke of the present invention can be 1mm, 2mm, 3mm, 4mm, 5mm, for example, and can be modified according to the limited pressure value in the second cold pipe 200 b. The regulating valve 203 is arranged in front of the pressure equalizing valve 204, and the pressure change in the second cold pipe 200b is controlled more accurately.
Referring to fig. 1, the regulating valve 203, the pressure equalizing valve 204 and the second cold air pipe 200b form a regulating device, the cold air valve 201, the first cold air pipe 200a and the regulating device form a cold air system, and the hot air system 100 is connected with the cold air system through a furnace body, so that the blast furnace heat exchanger works efficiently.
The utility model provides a pair of hot-blast furnace system that steel mill used, include: the hot-blast pipeline, the hot-blast valve, the furnace body, the cold blast valve, first cold blast pipe, the governing valve, the equalizing valve, the second cold blast pipe. The furnace body is mainly used for firing products at high temperature to produce hot air. The cold air valve is mainly used for controlling cold air to flow in and flow out. The governing valve mainly used adjusts the transportation of cold wind in the first cold-blast pipe, accurate control flap's opening and closing angle. The pressure equalizing valve is mainly used for controlling pressure values in the first cold air pipe and the second cold air pipe, and the system is protected to operate safely. Get into first cold blast pipe 200a when cold wind, flow in second cold blast pipe 200b, and governing valve 203 opens, and pressure equalizing valve 204 starts, waits the first cold blast pipe 200a pressure equalization back of cold blast valve 201 both sides, opens cold blast valve 201 for the hot-blast furnace begins work. The opening and closing angle of the valve is accurately controlled through the regulating valve, so that efficient furnace replacement operation is realized, and the process efficiency is improved.
The above description is only a preferred embodiment of the present application and the explanation of the applied technical principle, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.
Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.
Claims (10)
1. A hot blast stove for a steel plant, comprising:
a furnace body;
the cold air pipe is connected with the furnace body and comprises a first cold air pipe and a second cold air pipe, the second cold air pipe is arranged at two ends of the first cold air pipe, and the first cold air pipe is vertical to the furnace body;
the cold air valve is arranged on the first cold air pipe and is positioned between two ends of the second cold air pipe;
the pressure equalizing valve is arranged on the second cold air pipe, and the pressure numerical range of the pressure equalizing valve comprises 10-15 KPa; and
and the regulating valve is arranged on the second cold air pipe and positioned in front of the pressure equalizing valve.
2. The hot blast stove for steel plants according to claim 1, wherein one end of the stove body is connected with a hot blast pipe, and the hot blast pipe is provided with a hot blast valve.
3. The hot blast stove for steel plants according to claim 2, wherein one end of the hot blast pipe is connected to a hot blast port.
4. The hot blast stove for a steel mill according to claim 2, wherein the hot blast valve comprises a butterfly valve or a gate valve.
5. The hot blast stove for steel plants according to claim 1, wherein the other end of the stove body is connected to the cold blast pipe.
6. The hot blast stove for steel plants according to claim 1, wherein one end of the cold blast pipe is connected to the stove body.
7. The hot blast stove for steel plants according to claim 1, wherein the other end of the cold blast pipe is connected to a cold blast port.
8. The hot blast stove for a steel mill according to claim 1, wherein the regulating valve comprises a butterfly valve or a gate valve.
9. The hot blast stove for a steel plant according to claim 1, wherein the pressure equalizing valve comprises a butterfly valve, a gate valve, a cubic valve or a free standing valve.
10. The hot blast stove for a steel mill according to claim 1, wherein the cold blast valve comprises a butterfly valve or a gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437037.4U CN214458121U (en) | 2020-10-28 | 2020-10-28 | Hot-blast stove for iron and steel plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437037.4U CN214458121U (en) | 2020-10-28 | 2020-10-28 | Hot-blast stove for iron and steel plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214458121U true CN214458121U (en) | 2021-10-22 |
Family
ID=78148106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022437037.4U Expired - Fee Related CN214458121U (en) | 2020-10-28 | 2020-10-28 | Hot-blast stove for iron and steel plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214458121U (en) |
-
2020
- 2020-10-28 CN CN202022437037.4U patent/CN214458121U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |