CN217209462U - Blast furnace top ignition device - Google Patents
Blast furnace top ignition device Download PDFInfo
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- CN217209462U CN217209462U CN202121625816.5U CN202121625816U CN217209462U CN 217209462 U CN217209462 U CN 217209462U CN 202121625816 U CN202121625816 U CN 202121625816U CN 217209462 U CN217209462 U CN 217209462U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model relates to an ignition technology, in particular to a blast furnace top ignition device, which comprises: an ignition assembly; the air feed subassembly, the air feed subassembly includes: the gas supply device comprises a gas supply tank and a first gas transmission pipeline, wherein one end of the first gas transmission pipeline is connected to the gas supply tank, and the other end of the first gas transmission pipeline is connected to an ignition assembly. So set up, carry the gas in the gas supply tank to the subassembly of lighting a fire through first gas transmission pipeline, for the subassembly of lighting a fire provides the required gas of burning, stretch into the entry of blast furnace roof with the part of subassembly of lighting a fire, light the required gas of burning that the gas supply subassembly provided to produce stable naked light, thereby light the coal gas in the blast furnace roof, in order to guarantee the safety of furnace roof maintainer. The gas supply tank is arranged to store and supply combustible gas, so that the aim of long-time uninterrupted ignition can be achieved without building a coke oven gas pipeline. So that the application of the ignition device on the blast furnace top without a coke oven gas pipeline is possible.
Description
Technical Field
The utility model relates to an ignition technology, in particular to a blast furnace top ignition device.
Background
When the blast furnace stops blowing for a long time or a maintenance item is on the top of the blast furnace after maintenance, the top of the blast furnace needs to be ignited, and coal gas overflowing from the charge level of the top of the blast furnace is combusted into carbon dioxide, so that the concentration of the carbon monoxide is prevented from rising, and the safety of maintenance personnel on the top of the blast furnace is ensured. When the temperature of the furnace top is lower or the gas amount is less, the ignition is not easy to succeed, and further the maintenance progress is influenced, so that combustible gas and combustion-supporting gas are required to be input into the ignition device and extend into the upper part of the blast furnace charge level to ignite the gas overflowing from the charge level of the furnace top. At present, all the fuel used by the blast furnace top ignition machine is pipeline coke oven gas. However, most blast furnace roofs do not have coke oven gas sources, and the construction of a coke oven gas pipeline communicated with the blast furnace roofs not only costs a large amount of capital, but also has great safety risks and the problem of pollutant discharge. Many blast furnaces cannot be provided with an igniter because the top of the blast furnace is not provided with a coke oven gas source, and need manual ignition. The artificial ignition has low success rate, is easy to extinguish midway, and is easy to be damaged by carbon monoxide deflagration in the ignition process of operating personnel.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims at solving the problem that the blast furnace can not be provided with the ignition device because the furnace top is not provided with the coke oven gas source.
Therefore, the embodiment of the utility model aims to provide a blast furnace top ignition device.
In order to achieve the above object, the technical scheme of the utility model provides a blast furnace top ignition device, include:
an ignition assembly;
the air supply component is arranged on the air supply device,
the gas supply assembly includes: the gas supply device comprises a gas supply tank and a first gas transmission pipeline, wherein one end of the first gas transmission pipeline is connected to the gas supply tank, and the other end of the first gas transmission pipeline is connected to the ignition assembly.
In addition, the blast furnace top ignition device in the technical scheme provided by the embodiment of the utility model can also have the following additional technical characteristics:
in a technical solution of the present invention, the blast furnace top ignition device further includes:
the busbar, the air supply jar is a plurality of, and is a plurality of the air supply jar is connected in the busbar.
In a technical solution of the present invention, the air supply assembly further includes:
and one end of the second gas transmission pipeline is connected to the ignition assembly, and the other end of the second gas transmission pipeline is used for being connected to a combustion-supporting gas source.
In an aspect of the present invention, the ignition module includes:
the gas channels are respectively connected to the first gas transmission pipeline and the second gas transmission pipeline and used for extending into the blast furnace.
In a technical solution of the present invention, the ignition module further includes:
the gas transmission device comprises a gun body, at least one of the gas channels is located in the gun body, the gas channels are respectively connected to the first gas transmission pipeline and the second gas transmission pipeline, and the gun body is used for extending into the blast furnace.
In a technical solution of the present invention, the ignition module further includes:
the device comprises a conductive rod, an igniter, a power supply and a control box;
when the ignition assembly comprises a plurality of gas passages, the igniter is configured to be disposed at a port where the gas passage extends into the interior of the blast furnace; the conducting rod is arranged in any one of the gas channels, one end of the conducting rod is connected to the igniter, and the other end of the conducting rod is connected to the power supply; the control box is connected to the power supply through a cable and is used for controlling the connection or disconnection of the power supply and the conducting rod;
when the ignition assembly comprises a gun body, the conductive rod is disposed inside the gun body; the igniter is connected to one end of the conductive rod and is arranged at one end of the gun body extending into the blast furnace; the power supply is connected to the other end of the conducting rod; the control box is connected to the power supply through the cable and is used for controlling the connection or disconnection of the power supply and the conducting rod. In a technical solution of the present invention, the blast furnace top ignition device further includes:
a conveyor assembly connected to the firing assembly for moving portions of the firing assembly into and out of the blast furnace interior.
In a technical solution of the present invention, the conveying assembly includes:
the hoisting piece is arranged above the blast furnace;
a rope or chain having one end connected to the sling and the other end connected to the ignition assembly;
the hoisting piece is used for moving part of the ignition assembly into the blast furnace above the charge level close to the furnace wall or out of the blast furnace along the vertical direction.
In a technical solution of the present invention, the conveying assembly includes:
the bracket is arranged on one side of the opening of the top of the blast furnace;
a guide rail connected to the bracket;
the guide piece is arranged on the guide rail and can move along the guide rail;
the guide member is used for moving part of the ignition assembly into the blast furnace above the material level near the center or out of the blast furnace.
In a technical solution of the present invention, the air supply assembly includes:
the pressure adjusting unit is arranged on the first gas transmission pipeline;
and the detection unit is arranged on the first gas transmission pipeline.
Compared with the prior art, the utility model discloses at least, including following beneficial effect:
the utility model provides a blast furnace top ignition, this blast furnace top ignition is provided with ignition assembly and air feed subassembly, provide the gas that the burning needs through air feed subassembly to ignition assembly, ignite the blast furnace top through ignition assembly, stretch into the entry to the blast furnace top with ignition assembly's part, ignite the gas that the burning that air feed subassembly provided needs, so as to produce stable naked light, thereby ignite the coal gas in the blast furnace top, until burning out the remaining coal gas of furnace top, in order to guarantee furnace top maintainer's safety. Further, the gas supply assembly is provided with a gas supply tank and a first gas transmission pipeline, wherein one end of the first gas transmission pipeline is connected to the gas supply tank, and the other end of the first gas transmission pipeline is connected to the ignition assembly, so that gas in the gas supply tank is transmitted to the ignition assembly through the first gas transmission pipeline, and gas required by combustion is provided for the ignition assembly. The gas supply tank is arranged to store combustible gas, so that the problem that an ignition device cannot be installed and applied because a coke oven gas source is not built on the top of the existing blast furnace is solved. The gas supply tank is used for storing gas required by various combustions, and the gas supply tank is suitable for various application scenes, is more convenient to ignite, and saves a large amount of cost and floor area. Thereby solving the problems of easy accident occurrence, low ignition rate, easy flameout in midway, long ignition process time, influence on the blast furnace output and the like of the long-term manual ignition of the blast furnaces.
Other advantages, objects, and features of the invention 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 invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a schematic structural diagram of a blast furnace top ignition device provided according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of another blast furnace top ignition device provided according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:
100 blast furnace top ignition device, 200 blast furnace;
110 an ignition module, 120 a gas supply module, 130 a first valve, 140 a delivery module;
112 gun body, 113 second valve, 114 igniter, 115 control box;
a gas supply tank 121, a first gas transmission pipeline 122, a bus bar 123, a pressure regulating box 124, a second gas transmission pipeline 125 and a third gas transmission pipeline 126;
141 guide rail, 142 hoisting piece, 143 support, 144 guide piece, 145 wire rope.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
In an embodiment of the present invention, there is provided a blast furnace top ignition device 100, including: an ignition assembly 110; air supply assembly 120, air supply assembly 120 includes: a gas supply tank 121, and a first gas transmission pipe 122, one end of the first gas transmission pipe 122 being connected to the gas supply tank 121, and the other end being connected to the ignition module 110.
In this embodiment, as shown in fig. 1, the blast furnace top ignition device 100 is provided with an ignition assembly 110 and a gas supply assembly 120, the ignition assembly 110 is provided with gas required for combustion by the gas supply assembly 120, the top of the blast furnace 200 is ignited by the ignition assembly 110, a part of the ignition assembly 110 is inserted into an inlet of the top of the blast furnace 200, and the gas required for combustion provided by the gas supply assembly 120 is ignited to generate a stable open flame, so that gas overflowing from the top charge level of the blast furnace 200 is ignited, and carbon monoxide is converted into relatively safe carbon dioxide to ensure the safety of top maintenance personnel. Further, the gas supply assembly 120 is provided with a gas supply tank 121 and a first gas transmission pipe 122, wherein one end of the first gas transmission pipe 122 is connected to the gas supply tank 121, and the other end is connected to the ignition assembly 110, so that the gas in the gas supply tank 121 is transmitted to the ignition assembly 110 through the first gas transmission pipe 122 to provide the ignition assembly 110 with gas required for combustion. The gas supply tank 121 is provided to store gas, and it is understood that the gas supply tank 121 is a commercial gas supply tank 121, ensuring stability of stored gas. The factory building does not need to build a long-distance coke oven gas supply pipeline, the gas supply tank 121 is convenient to use, and is suitable for various application scenes, a large amount of cost is saved, and the occupied area is small.
It will be appreciated that the gas in the gas supply tank 121 is a combustible gas, and the combustible gas is delivered to the ignition assembly 110 through the first gas delivery pipe 122, so that the portion of the ignition assembly 110 extending into the top of the blast furnace 200 can be ignited to generate a stable open flame, thereby igniting the gas overflowing from the top charge surface of the furnace.
Illustratively, the second valve 113 may be provided on the top of the blast furnace 200, the second valve 113 may be a ball valve or a blind plate, when the blast furnace is in production operation, the ball valve is closed or the blind plate is closed, when the blast furnace stops blowing and needs to be ignited, the ball valve or the blind plate is opened, and the ignition assembly may enter the furnace.
Illustratively, the gas supply tank 121 stores therein a combustible gas, which may be acetylene, propane, methane, liquefied petroleum gas, or the like.
In an embodiment of the present invention, the gas supply assembly 120 further includes: the bus bar 123 includes a plurality of air supply tanks 121, and the plurality of air supply tanks 121 are connected to the bus bar 123.
In this embodiment, as shown in fig. 1, the gas supply module 120 is further provided with a bus bar 123 and a pressure regulating box 124, wherein the gas supply module 120 is provided with a plurality of gas supply tanks 121, tank openings of the plurality of gas supply tanks 121 are connected to the bus bar 123, and the gas in the plurality of gas supply tanks 121 is collected by the bus bar 123 and flows into the blast furnace top ignition device 100 together.
It can be understood that a valve is arranged at the position where each air supply tank 121 is connected to the bus bar 123, when the gas surplus in the air supply tank 121 in the air supply state is low, the remaining valves can be opened and connected, and more air supply tanks 121 are connected, so that a new air supply tank 121 with sufficient air storage capacity can be rapidly added for air supply under the condition that the operation of the blast furnace top ignition device is not interrupted, and the problem that the operation needs to be interrupted when the air supply tank 121 is replaced is solved.
In an embodiment of the present invention, the gas supply assembly 120 further includes: and a second gas transmission pipeline 125, wherein one end of the second gas transmission pipeline 125 is connected to the ignition assembly 110, and the other end of the second gas transmission pipeline 125 is used for being connected to a combustion-supporting gas source.
In this embodiment, as shown in fig. 1, the gas supply assembly 120 is further provided with a second gas transmission pipeline 125, and the second gas transmission pipeline 125 is arranged to transmit the gas in the combustion-supporting gas source to the ignition assembly 110, so that the part of the ignition assembly 110 extending into the top of the blast furnace 200 is more sufficiently combusted, the combustion effect is improved, and the gas overflowing from the charge level inside the blast furnace 200 can be reliably combusted.
It can be understood that the gas supply tank 121 is used for providing combustible gas, the combustible gas is conveyed to the ignition assembly 110 through the first gas conveying pipeline 122, and the combustion-supporting gas is conveyed to the ignition assembly 110 through the second gas conveying pipeline 125, so that the combustible gas and the combustion-supporting gas are respectively conveyed to the ignition assembly 110 through different gas conveying pipelines, the conveying process avoids mixing of the combustible gas and the combustion-supporting gas, the conveying safety is improved, the concentration of the combustible gas and the concentration of the combustion-supporting gas can be respectively controlled, and the combustion effect of the part of the ignition assembly 110 extending into the top of the blast furnace 200 is improved.
Illustratively, the gas supply assembly 120 is further provided with a third gas transmission pipeline 126, and before the combustible gas and the combustion-supporting gas are transmitted to the ignition assembly 110, the third gas transmission pipeline 126 is provided to transmit the gas in the flame-retardant gas source to the first gas transmission pipeline 122, so as to replace the original air in the ignition assembly 110 and the blast furnace 200, so that the gas composition and content in the first gas transmission pipeline 122 are reduced to a safe ignition range, thereby reducing the risk of explosion in the first gas transmission pipeline 122 and ensuring the safety of the ignition process.
Illustratively, the flame retardant gas can be selected from nitrogen or carbon dioxide, and is loaded into the gas supply tank 121 and is distinguished from the gas supply tank 121 filled with combustible gas and combustion-supporting gas, so that the flame retardant gas is convenient to use, can be applied to various application scenarios, saves a large amount of cost, and occupies a small area.
Illustratively, the blast furnace top ignition device 100 may further be provided with a first valve 130, specifically, the first valve 130 is located on at least one of the first gas transmission pipeline 122, the second gas transmission pipeline 125 and the third gas transmission pipeline 126, and when the first valve 130 is provided on the first gas transmission pipeline 122, the flow of the combustible gas entering the ignition assembly 110 may be controlled; when the second gas transmission pipeline 125 is provided with the first valve 130, the flow of the combustion-supporting gas entering the ignition assembly 110 can be controlled; when the third gas transmission pipeline 126 is provided with the first valve 130, the presence or absence of the flame-retardant gas entering the ignition assembly 110 can be controlled, the flow rate of the gas can be independently controlled, the control is more accurate, and the gas transmission pipeline are not interfered with each other.
In one embodiment of the present invention, the ignition assembly 110 includes: and the gas channels are respectively connected to the first gas transmission pipeline and the second gas transmission pipeline and are used for extending into the blast furnace 200.
In this embodiment, the ignition assembly 110 is provided with a plurality of gas passages, and the plurality of gas passages are respectively connected with the first gas transmission pipeline 122 and the second gas transmission pipeline 125, and the plurality of gas passages can extend into the interior of the blast furnace 200, so that the combustible gas and the combustion-supporting gas are respectively transmitted to the ignition assembly 110 through the gas passages to be mixed and ignited in the interior of the blast furnace 200, thereby igniting the gas overflowing from the surface of the interior of the blast furnace 200.
Illustratively, the plurality of gas passages are arranged in parallel such that the gases in the different gas passages are isolated from each other before reaching the igniter.
Illustratively, at the port where the gas conduit is located in the blast furnace 200, a burner may be provided to facilitate ignition of the combustible gas and combustion supporting gas mixed at the port.
For example, the gas passage connected with the first pipeline is arranged in the gas passage connected with the second pipeline, so that the volume of the ignition assembly can be reduced.
In an embodiment of the present invention, the ignition assembly 110 includes: the lance body 112, at least one of the plurality of gas passages is located in the lance body 112, the plurality of gas passages are respectively connected to the first gas transmission pipeline 122 and the second gas transmission pipeline 125, and the lance body 122 is used for extending into the blast furnace 200.
In this embodiment, as shown in fig. 1, the ignition assembly 110 is provided with a gun body 112, which protrudes into the blast furnace 200 through the gun body 112 for ignition, wherein a plurality of gas channels are provided inside the gun body 112, and the plurality of gas channels are respectively connected with the first gas transmission pipeline 122 and the second gas transmission pipeline 125, so that the combustible gas and the combustion-supporting gas are respectively transmitted to the portion of the gun body 112 protruding into the blast furnace 200 through the gas channels, and the combustible gas and the combustion-supporting gas are fully mixed and then ignited, thereby reducing the dissipation of the gas and improving the ignition effect.
It can be understood that a combustion chamber is formed in the portion of the lance body 112 for extending into the blast furnace 200, and the combustible gas and the combustion-supporting gas are fully mixed in the combustion chamber and then ignited, thereby improving the ignition effect.
It will be appreciated that at least one gas passage may be provided within the gun body 112, or the gun body 112 itself may act as a gas passage, reducing the volume of the ignition assembly.
Illustratively, the combustible gas and the combustion-supporting gas mixed in the lance body 112 may be ignited outside the blast furnace 200, and after the lance body 112 generates a stable open flame, the lance body 112 having an open flame portion is inserted into the blast furnace, thereby igniting the gas overflowing from the charge level in the blast furnace 200.
In one embodiment of the present invention, the conductive rod, the igniter 114, the power supply and control box 116;
when the ignition assembly 110 includes a plurality of gas passages, the igniter 114 is adapted to be disposed at a port where the gas passages extend into the interior of the blast furnace 200; a conductive rod is arranged in any one of the gas channels, one end of the conductive rod is connected to the igniter 114, and the other end of the conductive rod is connected to a power supply; the control box 116 is connected to a power supply through a cable and is used for controlling the connection or disconnection of the power supply and the conducting rod;
when the ignition assembly 110 includes a gun body 112, the conductive rod is disposed inside the gun body 112; the igniter 114 is connected to one end of the conductive rod and is arranged at one end of the gun body 112 extending into the blast furnace 200; the power supply is connected to the other end of the conducting rod; the control box 116 is connected to a power source through a cable for controlling the connection or disconnection of the power source to or from the conductive rods.
In this embodiment, the torch body 112 is further provided with a conductive rod, a power supply and an igniter 114 inside, and when the ignition assembly 110 includes a plurality of gas passages, the igniter 114 is provided at a port of the gas passage extending into the interior of the blast furnace 200 to ignite the combustible gas and the combustion supporting gas mixed at the port, thereby generating a stable open flame to ignite the residual gas inside the blast furnace 200. And a control box 116 is provided, which is connected to the power source through a cable, and the control box 116 controls the power source to be switched on or off from the conductive rod, so as to control the igniter 114 to be switched on or off, it can be understood that the current and the voltage of the power source can be adjusted through the control box 116, so as to adjust the power of the electric spark output by the igniter 114.
When the ignition assembly 110 includes the gun body 112, the conductive rod and the igniter 114 are disposed inside the gun body 112, wherein the igniter 114 is disposed at one end of the gun body 112 extending into the blast furnace 200, one end of the conductive rod is connected to the igniter 114, and the other end is connected to the power supply, so that the power supply can supply power to the igniter 114, so that the igniter 114 can spark, ignite the combustible gas and the combustion-supporting gas mixed at the position where the gun body 112 extends into the blast furnace 200, thereby generating a stable open flame to ignite the residual gas inside the blast furnace 200. And a control box 116 is provided, which is connected to the power source through a cable, and the control box 116 controls the power source to be switched on or off through the conductive rod, so as to control the igniter 114 to be switched on or off, it can be understood that the control box 116 can also adjust the current and voltage of the power source, so as to adjust the electric spark output by the igniter 114.
Illustratively, the igniter 114 may be a pulsed spark igniter 114 or a high frequency electric igniter 114, which is capable of generating a continuous momentary spark and has high stability and simple triggering. So as to ignite the combustible gas and the combustion-supporting gas mixed in the gun body 112 positioned inside the blast furnace 200, and further ignite the coal gas overflowing from the charge level inside the blast furnace 200.
In an embodiment of the present invention, the blast furnace top ignition device 100 further includes: a conveyor assembly 140, coupled to the firing assembly 110, for moving portions of the firing assembly 110 into and out of the interior of the blast furnace 200.
In this embodiment, as shown in fig. 1, the blast furnace top ignition device 100 is further provided with a conveying assembly 140, and a part of the ignition assembly 110 is conveyed to the inside of the blast furnace 200 through the conveying assembly 140, so as to ignite the coal gas overflowing from the charge level in the blast furnace 200, improve the applicability of the blast furnace top ignition device 100 and increase the placeable position.
In one embodiment of the present invention, the conveying assembly 140 comprises: a sling 142 for being disposed above the blast furnace 200; a rope or chain having one end connected to the sling 142 and the other end connected to the ignition assembly 110; the sling 142 is used to move portions of the ignition assembly 110 in a vertical direction into and out of the blast furnace 200 above the charge level of the furnace 200 near the furnace wall.
In this embodiment, as shown in fig. 1, the conveying assembly 140 is provided with a sling 142 and a rope or a chain, wherein the sling 142 is located above the blast furnace 200, one end of the ignition assembly 110 is connected to the sling 142 through the rope or the chain, the ignition device 100 on the top of the blast furnace 200 is located right above the top of the blast furnace 200, and the length of the rope or the chain is adjusted through the sling 142 to adjust the distance between the ignition assembly 110 and the top of the blast furnace 200, so that part of the ignition assembly 110 vertically enters the interior of the blast furnace 200 from an opening on the top of the blast furnace 200 above the charge level close to the furnace wall, so as to ignite the gas overflowing from the charge level in the blast furnace 200. After the combustion operation is completed, the ignition assembly 110 is lifted out of the blast furnace 200, so that the conveying assembly 140 occupies a small space and has a simple structure, and the ignition assembly 110 is vertically inserted into the blast furnace 200 to prevent the ignition assembly 110 from touching the side wall of the opening at the top of the blast furnace 200, so as to cause damage, it can be understood that the opening at the top of the blast furnace 200 is generally arranged at the side wall close to the blast furnace 200, so that the ignition assembly 110 is vertically inserted into the blast furnace 200, and the residual gas close to the wall of the blast furnace 200 is more conveniently ignited.
Illustratively, the transportation assembly can be an electric hoist crane, the ignition assembly 110 can be connected by a steel wire 145, the ignition assembly 110 is lowered to a position partially inside the blast furnace 200 along the vertical direction through the electric hoist to ignite gas overflowing from the charge level in the blast furnace 200, and the ignition assembly 110 is lifted out of the blast furnace 200 when the damping down is finished.
In an embodiment of the present invention, as shown in fig. 2, the conveying assembly includes: a bracket 143 for being disposed at one side of a top opening of the blast furnace 200; a rail 141 connected to the bracket 143; a guide 144 provided on the guide rail 141 to be movable along the guide rail 141; the guide 144 is used to move portions of the ignition assembly 110 into and out of the blast furnace 200 above the charge level near the center of the furnace 200.
In this embodiment, the conveyor assembly 140 is provided with a bracket 143, a rail 141 and a guide member 144, wherein the bracket 143 is disposed at a side near the opening of the top of the blast furnace 200, the rail 141 is obliquely connected to the bracket 143, the guide member 144 is mounted on the rail 141, and the guide member 144 is movable on the rail 141, and the ignition assembly 110 is connectable to the guide member 144 such that the guide member 144, when moving on the rail 141, moves a portion of the ignition assembly 110 into the blast furnace above the charge level near the center to ignite residual gas in the blast furnace 200, or moves out of the blast furnace 200. The angle of the rail 141 to the horizontal of the bracket 143 is between 15 deg. and 70 deg..
In an embodiment of the present invention, the gas supply assembly 120 further includes: a pressure regulating unit disposed on the first gas transmission pipe 122; and a detection unit disposed on the first gas transmission pipeline 122.
In this embodiment, the gas supply assembly 120 is further provided with a pressure regulating unit and a detecting unit, wherein the pressure regulating unit and the detecting unit are respectively provided on the first gas transmission pipeline 122. Specifically, the pressure regulating unit is a pressure regulating valve for regulating the pressure of the gas supplied from the gas supply tank 121 to the ignition module 110; the sensing unit is provided with a pressure sensor and a flow sensor for sensing the pressure and flow of gas supplied to the gas supply tank 121 for delivery to the ignition assembly 110 to ensure that the concentration of gas in the ignition assembly 110 is within a suitable combustion range. When the detecting unit detects that the pressure and the flow of the gas in the first gas transmission pipeline 122 are in an abnormal state, the pressure of the gas in the first gas transmission pipeline 122 is adjusted to a normal range by adjusting the pressure unit, so that the gas transmitted to the ignition assembly 110 is in a normal combustion range, and the combustion effect is ensured.
Illustratively, the gas supply assembly 120 is further provided with a flow regulating unit, and the flow and the ratio of the combustible gas and the combustion-supporting gas can be regulated by regulating valves arranged on the first gas transmission pipeline 122 and the second gas transmission pipeline 125, so as to ensure efficient and stable combustion.
Illustratively, as shown in fig. 1 and 2, the air supply assembly 120 may further include a pressure regulating tank 124, a bus bar 123 connected to an input end of the pressure regulating tank 124, an ignition assembly 110 connected to an output end of the pressure regulating tank 124, and a pressure regulating unit and a detection unit disposed in the pressure regulating tank 124 and both located between the input end and the output end of the pressure regulating tank 124, so as to arrange a space reasonably and protect the pressure regulating unit and the detection unit.
The pressure regulating tank 124 may further be provided with a filtering unit and a third valve, wherein the filtering unit and the third valve are both disposed in the pressure regulating tank 124 and located between the input end and the output end of the pressure regulating tank 124, and in particular, the filtering unit is used for filtering impurities of the gas supplied to the gas supply tank 121 for being delivered to the ignition assembly 110, thereby ensuring the combustion effect.
Moreover, the bus bar 123 is connected to the input end of the pressure regulating box 124, the ignition assembly 110 is connected to the output end of the bus bar 123, and the pressure of the gas input into the ignition assembly 110 is regulated by the pressure regulating box 124, so that the pressure of the gas conveyed into the ignition assembly 110 is suitable for ignition, and the situation that when the pressure is too small, the concentration of the gas required for combustion in the ignition assembly 110 is too small and cannot be ignited, and when the pressure is too large, the concentration of the gas required for combustion in the ignition assembly 110 is too large, so that explosion is easily caused is avoided, and the ignition stability of the ignition assembly 110 is improved.
It can be understood that the third valve is a pressure relief valve, an overpressure shutoff valve, or the like to ensure the safety of the blast furnace top ignition device 100, when the pressure in the pressure regulating tank 124 is too high to be adjusted, the pressure relief valve is used to discharge the gas in the pressure regulating tank 124 in an emergency manner, so as to avoid the occurrence of an accident caused by the too high pressure in the pressure regulating tank 124, and meanwhile, the differential pressure shutoff valve can cut off the power supply in an emergency manner, so as to further ensure the safety of the blast furnace top ignition device 100.
In the description of the present invention, the term "plurality" means two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "connected", "mounted", "fixed", and the like are to be construed broadly and may include, for example, fixed connections, detachable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present invention, the terms "one embodiment," "some embodiments," "specific embodiments," and the like, are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A blast furnace top ignition device, comprising:
an ignition assembly;
the air supply component is arranged on the air supply device,
the gas supply assembly includes: the gas supply device comprises a gas supply tank and a first gas transmission pipeline, wherein one end of the first gas transmission pipeline is connected to the gas supply tank, and the other end of the first gas transmission pipeline is connected to the ignition assembly.
2. The blast furnace top ignition device according to claim 1, wherein the gas supply assembly further comprises:
the busbar, the air feed jar is a plurality of, the one end of busbar is connected in a plurality of the air feed jar, the other end connect in ignition module.
3. The blast furnace top firing apparatus according to claim 1, wherein said gas supply assembly further comprises:
and one end of the second gas transmission pipeline is connected to the ignition assembly, and the other end of the second gas transmission pipeline is used for being connected to a combustion-supporting gas source.
4. The blast furnace top ignition device according to claim 3, wherein said ignition assembly comprises:
the gas channels are respectively connected to the first gas transmission pipeline and the second gas transmission pipeline and used for extending into the blast furnace.
5. The blast furnace top ignition device according to claim 4, wherein said ignition assembly further comprises:
the gas transmission device comprises a gun body, at least one of the gas channels is located in the gun body, the gas channels are respectively connected to the first gas transmission pipeline and the second gas transmission pipeline, and the gun body is used for extending into the blast furnace.
6. The blast furnace top ignition device according to claim 5, wherein said ignition assembly further comprises:
the device comprises a conductive rod, an igniter, a power supply and a control box;
when the ignition assembly comprises a plurality of gas channels, the igniter is used for being arranged at a port of the gas channel extending into the interior of the blast furnace; the conductive rod is arranged in any one of the gas channels, one end of the conductive rod is connected to the igniter, and the other end of the conductive rod is connected to the power supply; the control box is connected to the power supply through a cable and is used for controlling the connection or disconnection of the power supply and the conducting rod;
when the ignition assembly comprises a gun body, the conductive rod is disposed inside the gun body; the igniter is connected to one end of the conductive rod and is used for being arranged at one end of the gun body extending into the blast furnace; the power supply is connected to the other end of the conducting rod; the control box is connected to the power supply through the cable and is used for controlling the connection or disconnection of the power supply and the conducting rod.
7. The blast furnace top ignition device according to claim 1, further comprising:
a transfer assembly connected to the firing assembly for moving portions of the firing assembly into and out of the blast furnace interior.
8. The blast furnace top firing apparatus according to claim 7, wherein said delivery assembly comprises:
the hoisting piece is arranged above the blast furnace;
a rope or chain having one end connected to the sling and the other end connected to the ignition assembly;
the hoisting piece is used for moving part of the ignition assembly into the blast furnace above a charge level close to a furnace wall or out of the blast furnace along the vertical direction.
9. The blast furnace top firing apparatus according to claim 7, wherein said delivery assembly comprises:
the bracket is arranged on one side of the opening of the top of the blast furnace;
a guide rail connected to the bracket;
the guide piece is arranged on the guide rail and can move along the guide rail;
the guide is used for moving part of the ignition assembly into the blast furnace above the charge level near the center or out of the blast furnace.
10. The blast furnace top firing apparatus according to claim 2, wherein said gas supply assembly comprises:
the pressure adjusting unit is arranged on the first gas transmission pipeline;
and the detection unit is arranged on the first gas transmission pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121625816.5U CN217209462U (en) | 2021-07-16 | 2021-07-16 | Blast furnace top ignition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121625816.5U CN217209462U (en) | 2021-07-16 | 2021-07-16 | Blast furnace top ignition device |
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| CN217209462U true CN217209462U (en) | 2022-08-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386663A (en) * | 2022-08-30 | 2022-11-25 | 马鞍山钢铁股份有限公司 | Intelligent ignition method and system for blast furnace top |
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- 2021-07-16 CN CN202121625816.5U patent/CN217209462U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386663A (en) * | 2022-08-30 | 2022-11-25 | 马鞍山钢铁股份有限公司 | Intelligent ignition method and system for blast furnace top |
| CN115386663B (en) * | 2022-08-30 | 2023-06-23 | 马鞍山钢铁股份有限公司 | Intelligent ignition method and ignition system for blast furnace top |
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