CN214991678U - Gas-based reduction furnace for simulating gas-based reduction - Google Patents
Gas-based reduction furnace for simulating gas-based reduction Download PDFInfo
- Publication number
- CN214991678U CN214991678U CN202120270179.8U CN202120270179U CN214991678U CN 214991678 U CN214991678 U CN 214991678U CN 202120270179 U CN202120270179 U CN 202120270179U CN 214991678 U CN214991678 U CN 214991678U
- Authority
- CN
- China
- Prior art keywords
- gas
- reduction
- furnace
- simulating
- reduction furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a gas-based reducing furnace for simulating gas-based reduction belongs to and relates to high temperature laboratory gas-based thermal simulation experiment technical field for solve among the prior art gas-based reducing furnace simulation condition few, simulation process and the great problem of actual gap. The gas-based reduction furnace of the utility model comprises a gas supply unit, a reduction furnace, a dynamic gas distribution instrument and a back pressure valve; the gas supply unit is connected with a reduction gas inlet of the reduction furnace through a dynamic gas distributing instrument, the gas supply unit is used for providing reduction gas for the reduction furnace, and a reduction gas outlet of the reduction furnace is connected with the back pressure valve; the reduction furnace comprises a heating body, and the experimental material is arranged in the reduction furnace and is positioned in a heating zone of the heating body. The utility model discloses a gas-based reduction furnace can be used to simulate gas-based reduction experiment.
Description
Technical Field
The utility model relates to a high temperature laboratory gas-based thermal simulation experiment field especially relates to a gas-based reduction furnace for simulating gas-based reduction.
Background
In recent years, with the development of high-temperature experimental furnaces, the existing gas-based reduction furnace for simulating gas-based reduction mainly has gas distribution and heating functions, the gas supply of the gas-based reduction furnace is directly connected with a gas cylinder, and a separate gas mixing device and a device for adjusting the pressure in the furnace are not provided, so that the pressure in the furnace cannot be controlled, and the flow, the pressure and the temperature of the gas in the furnace cannot be adjusted at the same time, so that the existing gas-based reduction furnace has the defects of few simulation conditions, large difference between a simulation process and actual conditions, and incapability of better simulating the internal conditions of an actual industrial furnace.
SUMMERY OF THE UTILITY MODEL
In view of the above analysis, the utility model aims at providing a gas-based reduction furnace for simulating gas-based reduction for solve among the prior art unable control stove internal pressure, unable gas flow, pressure and temperature in the simultaneous control stove lead to the great problem of current gas-based reduction furnace simulation condition few, simulation process and actual gap.
The purpose of the utility model is mainly realized through the following technical scheme:
the utility model provides a gas-based reduction furnace for simulating gas-based reduction, including air feed unit, reducing furnace, dynamic distribution appearance and back pressure valve. The gas supply unit is connected with a reduction gas inlet of the reduction furnace through a dynamic gas distribution instrument, the gas supply unit is used for providing reduction gas for the reduction furnace, the gas supply unit is connected with a gas inlet end of the dynamic gas distribution instrument, and a gas outlet end of the dynamic gas distribution instrument is connected with the reduction gas inlet of the reduction furnace through a gas supply pipeline; a reduction gas outlet of the reduction furnace is connected with the back pressure valve through a gas exhaust pipeline; the reduction furnace comprises a heating body and a heating controller connected with the heating body, and the experimental material is arranged in the reduction furnace and is positioned in a heating area of the heating body.
Further, the gas-based reduction furnace for simulating gas-based reduction further comprises a pressure gauge, the pressure gauge is arranged between the dynamic gas distributing instrument and the reduction gas inlet, and the gas supply pressure of the dynamic gas distributing instrument can be monitored in real time through the pressure gauge.
Furthermore, the back pressure valve is connected with the pressure gauge through a signal line, receives the air supply pressure of the dynamic air distribution instrument detected by the pressure gauge, compares the air supply pressure with the preset pressure of the back pressure valve to obtain a pressure difference, and adjusts the air supply pressure according to the pressure difference to enable the pressure difference to be zero.
Furthermore, a condenser is arranged between the reduction air outlet and the back pressure valve, and the reduction air outlet, the condenser and the back pressure valve are sequentially connected through an exhaust pipeline.
Furthermore, the exhaust end of the back pressure valve is provided with a tail gas burner, the exhaust end of the back pressure valve is connected with the tail gas burner through an exhaust pipeline, and a long-time open fire is arranged in the burner.
Further, the gas supply unit comprises a plurality of gas supply bottles, each gas supply bottle contains a reducing gas, the reducing gases in the gas supply bottles are the same or different, and the gas flow rate of each gas supply bottle is 0-1 m3/min。
Further, each reducing gas corresponds to at least two gas supply bottles.
Furthermore, the gas supply unit further comprises a gas distribution pipeline, the gas distribution pipeline comprises a plurality of single pipelines and a main pipeline, the gas distribution bottle is connected with the dynamic gas distribution instrument sequentially through the single pipelines and the main pipeline, the gas inlet end of the single pipeline is connected with the gas distribution bottle, the gas outlet end of the single pipeline is connected with the gas inlet end of the main pipeline, and the gas outlet end of the main pipeline is connected with the dynamic gas distribution instrument.
Further, the gas supply unit includes three groups of gas supply cylinders, each group of gas supply cylinders being 2, the first group of gas supply cylinders being hydrogen gas supply cylinders, first hydrogen gas supply cylinder a1 and second hydrogen gas supply cylinder a2, respectively, the second group of gas supply cylinders being carbon monoxide gas supply cylinders, first carbon monoxide gas supply cylinder B1 and second carbon monoxide gas supply cylinder B2, respectively, and the third group of gas supply cylinders being nitrogen gas supply cylinders, first nitrogen gas supply cylinder C1 and second nitrogen gas supply cylinder C2, respectively.
Further, above-mentioned gas base reduction furnace for simulating gas base reduction still includes the cooling protector who is connected with the air feed unit, and the air feed unit still is used for providing cooling protective gas for the cooling protector, and the cooling protective gas in the cooling protector is the malleation, and the cooling protective gas lets in from the top of cooling protector, flows out from the bottom of cooling protector.
Further, the cooling protective gas is one or a mixture of more of nitrogen, argon and carbon dioxide in any proportion.
Further, the gas-based reduction furnace for simulating gas-based reduction further comprises a hoisting device, wherein the cooling protector and the experimental material are sequentially hoisted below the hoisting device, and the cooling protector is hoisted below the hoisting device through a cooling protector hoisting wire.
Furthermore, the cooling protector is in an inverted cylindrical shape, the bottom end of the cooling protector is an opening end, the top end of the cooling protector is a closed surface, a cooling protector through hole is formed in the center of the top end, and the diameter of the cooling protector through hole is larger than the outer diameter of the cooling protector suspension wire.
Furthermore, a plurality of protective air inlets are formed in the side wall of the cooling protector along the radial direction, and the protective air inlets are connected with the air supply unit through connecting pipes.
Further, the reduction furnace comprises a charging basket, a furnace tube and a furnace shell; from inside to outside, charging basket, furnace tube, heating member and stove outer covering set gradually, and the charging basket is located the furnace tube and hangs in the below of hoist and mount ware and cooling protector through the charging basket sling, and the one end of charging basket sling is connected with the charging basket, and the other end of charging basket sling passes behind the cooling protector and is connected with hoist and mount ware, and the experiment material is arranged in the charging basket, and the heating member is located between furnace tube and the stove outer covering.
Furthermore, the furnace tube is a heat-resistant pressure-resistant metal furnace tube, the heat-resistant temperature is 1500 ℃, the pressure resistance is 10Mpa, and the heat-resistant temperature of the charging basket and the charging basket suspension wires is 1500 ℃.
Further, the reduction gas inlet and the reduction gas outlet are both arranged on the furnace tube, illustratively, the reduction gas inlet is arranged at the bottom end of the furnace tube, and the reduction gas outlet is arranged at the top end of the furnace tube.
Further, the inner wall of the furnace shell is provided with an insulating layer.
Furthermore, the reduction furnace also comprises a sealing flange, the sealing flange comprises an upper flange and a lower flange detachably connected with the upper flange, the lower flange is fixedly connected with the top end of the furnace tube, the charging basket moves upwards, the upper flange cover is arranged at the top end of the charging basket, and the charging basket and the upper flange are moved out of the reduction furnace together and enter the cooling protector.
Furthermore, an upper flange through hole is formed in the upper flange, and the charging basket suspension wires sequentially penetrate through the upper flange and the cooling protector and then are connected with the lifting device.
Furthermore, the original furnace also comprises a reduction support, and the furnace tube, the heating body, the heat preservation layer and the furnace shell are all erected on the reduction support.
Further, the reduction support comprises a reduction top plate, a reduction intermediate plate, a reduction bottom plate and a reduction connecting plate, the reduction top plate, the reduction intermediate plate and the reduction bottom plate are sequentially arranged from top to bottom and are connected through the reduction connecting plate along the vertical direction, the heating body, the heat preservation layer and the furnace shell are all arranged on the reduction intermediate plate, the reduction top plate is arranged in a top plate through hole concentric with the furnace tube, and the diameter of the top plate through hole is larger than the outer diameter of the furnace tube and smaller than the inner diameter of the cooling protective gas.
Furthermore, the reduction brackets are all steel brackets.
Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:
a) the utility model provides a gas-based reduction furnace for simulating gas-based reduction collects air feed (air feed unit), thoughtlessly gas (dynamic gas distribution appearance), atmospheric pressure control (back pressure valve), flow control (dynamic gas distribution appearance) and temperature control (temperature controller) in an organic whole, can solve the problem that current reduction system can't solve interior gas flow, pressure, temperature and adjust simultaneously, and the parameter of simulation is more, more complete, is favorable to improving gas-based reduction experiment simulation effect and guides the practice.
b) The utility model provides a gas-based reduction furnace for simulating gas-based reduction, the air feed unit passes through dynamic distribution appearance and is connected with the reduction air inlet, and dynamic distribution appearance has functions such as automatic distribution, automatic calibration, can carry out automatic distribution and can control gas flow according to the nature of different gases to can realize convenient, swift, accurate reduction gas supply.
c) The utility model provides a gas base reduction furnace for simulating gas base reduction, the reduction gas outlet is connected with the back pressure valve, and the pressure in the reduction furnace can be adjusted in the setting of back pressure valve.
d) The utility model provides a gas-based reduction furnace for simulating gas-based reduction sets up heating controller in the reduction furnace, can the temperature of accurate control heating member through heating controller, and then the temperature in the control reduction furnace.
e) The utility model provides a gas-based reduction furnace for simulating gas-based reduction has changed the pay-off mode of current gas-based reduction furnace and has got the material mode, through addding the cooling protector that leads to cooling protective gas for the cooling protector has the multiple functions of cooling and preventing secondary oxidation concurrently, and the opening of cooling protector down, and the high temperature experiment material after the reduction is in the protection of cooling protective gas among the cooling protector all the time, thereby can improve above-mentioned accuracy, authenticity and the reliability of gas-based reduction simulation experiment greatly.
f) The utility model provides a gas-based reducing furnace for simulating gas-based reduction, through the setting of sealed flange, before the basket of feeding shifts out the boiler tube, go up the flange and can cover and establish on the top of the basket of feeding, seal the inner space of the basket of feeding, then, go up the flange and constitute a whole common entering cooling protector with the basket of feeding to can guarantee that the experimental material in the basket of feeding is in the protection of cooling protection gas all the time at the removal in-process.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating the particular invention and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the figures.
FIG. 1 is a schematic structural diagram of a gas-based reduction furnace for simulating gas-based reduction according to the present invention;
FIG. 2 is a schematic view of the connection between the reduction furnace and the reduction support in the gas-based reduction furnace for simulating gas-based reduction according to the present invention.
Reference numerals:
1-an air supply unit; 2-dynamic gas distribution instrument; 3-reducing furnace; 4-a hoisting device; 5-cooling the protector; 6-a condenser; 7-back pressure valve; 8-a tail gas burner; 9-a gas supply pipeline; 10-reduction gas inlet; 11-furnace tube; 12-a heating body; 13-a heat-insulating layer; 14-test material; 15-a loading basket; 16-loading basket suspension wires; 17-reduction gas outlet; 18-a sealing flange; 19-cooling the protector suspension wire; 20-a pressure gauge; 21-signal line; 22-reduction of the scaffold; a1-first hydrogen supply bottle; a2-second hydrogen gas supply bottle; b1-first carbon monoxide supply bottle; b2-second carbon monoxide supply bottle; c1-first nitrogen supply bottle; c2-second nitrogen supply bottle.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein the drawings constitute a part of the present invention, and together with the present invention, serve to explain the principles of the present invention.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium.
The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.
The utility model discloses usual working face can be plane or curved surface, can incline, also can the level. For convenience of explanation, the embodiments of the present invention are placed on a horizontal plane and used on the horizontal plane, and thus "high and low" and "up and down" are defined.
The utility model provides a gas-based reducing furnace for simulating gas-based reduction, see fig. 1 to fig. 2, including air feed unit 1, reducing furnace 3, dynamic gas distribution appearance 2, condenser 6, back pressure valve 7 and tail gas combustor. The gas supply unit 1 is connected with a reduction gas inlet 10 of the reduction furnace 3 through a dynamic gas distribution instrument 2, the gas supply unit 1 is connected with a gas inlet end of the dynamic gas distribution instrument 2, and a gas outlet end of the dynamic gas distribution instrument 2 is connected with the reduction gas inlet 10 of the reduction furnace 3 through a gas supply pipeline 9; a reduction air outlet 17 of the reduction furnace 3 is connected with the back pressure valve 7 through an exhaust pipeline; the reducing furnace 3 comprises a heating body 12 and a heating controller connected with the heating body 12, and the experimental material 14 is placed in the reducing furnace 3.
In the implementation, the reducing gas for gas-based reduction is led out from the gas supply unit 1, enters the reduction furnace 3 after passing through the dynamic gas distributing instrument 2, the reducing gas performs gas-based reduction reaction with the experimental material 14 in the reduction furnace 3, and the tail gas after the gas-based reduction reaction is discharged from the reduction gas outlet 17 and is discharged to the atmosphere after passing through the backpressure valve 7.
Compared with the prior art, the utility model provides a gas-based reduction furnace for simulating gas-based reduction collects air feed (air feed unit 1), mixes gas (dynamic gas distribution appearance 2), atmospheric pressure control (back pressure valve 7), flow control (dynamic gas distribution appearance 2) and temperature control (temperature controller) in an organic whole, can solve the problem that the gas flow, pressure, temperature were adjusted simultaneously in the unable solution stove of current reduction system, the parameter of simulation is more, more complete, be favorable to improving gas-based reduction experiment simulation effect and guide the practice.
Specifically, in the gas-based reduction furnace for simulating gas-based reduction, the gas supply unit 1 is connected with the reduction gas inlet 10 through the dynamic gas distribution instrument 2, and the dynamic gas distribution instrument 2 has the functions of automatic gas distribution, automatic calibration and the like, can automatically distribute gas according to the properties of different gases and can control the gas flow, so that the convenient, quick and accurate reduction gas supply can be realized.
Meanwhile, in the gas-based reduction furnace for simulating gas-based reduction, the reduction gas outlet 17 is connected with the back pressure valve 7, and the pressure in the reduction furnace 3 can be adjusted by the arrangement of the back pressure valve 7.
In addition, a heating controller is provided in the reduction furnace 3, and the temperature of the heating body 12 can be accurately controlled by the heating controller, thereby controlling the temperature in the reduction furnace 3.
In order to monitor the gas supply pressure of the dynamic gas distributing instrument 2 in real time, the gas-based reduction furnace for simulating gas-based reduction further comprises a pressure gauge 20, the pressure gauge 20 is arranged between the dynamic gas distributing instrument 2 and the reduction gas inlet 10, and the gas supply pressure of the dynamic gas distributing instrument 2 can be monitored in real time through the pressure gauge 20.
In order to adjust the pressure in the reduction furnace 3 in real time, the backpressure valve 7 is connected with the pressure gauge 20 through a signal line 21, the backpressure valve 7 receives the air supply pressure of the dynamic gas distributor 2 detected by the pressure gauge 20, the air supply pressure is compared with the preset pressure of the backpressure valve 7 to obtain a pressure difference, and the air supply pressure is adjusted according to the pressure difference to enable the pressure difference to be zero. In this way, the back pressure valve 7 is in signal connection with the pressure gauge 20, the preset pressure of the back pressure valve 7 (namely, the gas-based reduction pressure required in the reduction furnace 3) is preset before the gas-based reduction reaction starts, the gas supply pressure of the dynamic gas distributing instrument 2 is compared with the preset pressure of the back pressure valve 7, and the gas supply pressure of the dynamic gas distributing instrument 2 is adjusted, so that the gas supply pressure of the dynamic gas distributing instrument 2 is close to the preset pressure of the preset back pressure valve 7, and the gas supply accuracy is further improved.
Considering that the temperature of the exhaust gas discharged from the reduction furnace 3 is high and the back pressure valve 7 is damaged by directly connecting the exhaust gas with the back pressure valve 7, the condenser 6 is provided between the reduction gas outlet 17 and the back pressure valve 7, and the reduction gas outlet 17, the condenser 6 and the back pressure valve 7 are connected in sequence through a gas exhaust pipeline. Thus, the condenser 6 can cool the high-temperature tail gas discharged from the reduction furnace 3, so that the temperature of the tail gas is lower than 80 ℃, and the water vapor in the tail gas is condensed and then discharged from a drain pipe of the condenser 6.
In order to avoid pollution of pollutants in the tail gas to the atmosphere, a tail gas combustor 8 is arranged at the gas outlet end of the back pressure valve 7, the gas outlet end of the back pressure valve 7 is connected with the tail gas combustor 8 through a gas exhaust pipeline, a long-time open fire is arranged in the combustor, the tail gas passing through the back pressure valve 7 is fully combusted after passing through the tail gas combustor 8, and the combusted gas is exhausted to the atmosphere from the tail gas combustor 8. Thus, the tail gas passing through the back pressure valve 7 is treated by the tail gas burner 8, so that pollutants in the tail gas can be removed, and the environmental protection performance of the gas-based reduction furnace for simulating gas-based reduction is improved.
In order to realize the quantitative mixing and delivery of single or multiple gases, the gas supply unit 1 comprises a plurality of gas supply bottles, each gas supply bottle contains a reducing gas, the reducing gases in the gas supply bottles are the same or different, and the gas flow rate of each gas supply bottle is 0-1 m3/min。
In order to avoid that the normal air supply of the air supply unit 1 is influenced by the air supply fault of one air supply bottle, each reducing gas at least corresponds to two air supply bottles. Therefore, when one gas supply bottle has gas supply failure, the other gas supply bottle can still ensure normal gas supply, and the working stability of the gas-based reduction furnace for simulating gas-based reduction is improved.
In order to connect the air supply bottle with the dynamic air distribution instrument 2, the air supply unit 1 further comprises an air distribution pipeline, specifically, the air distribution pipeline comprises a plurality of single pipelines and a main pipeline, the air distribution bottle is connected with the dynamic air distribution instrument 2 sequentially through the single pipelines and the main pipeline, an air inlet end of each single pipeline is connected with the air distribution bottle, an air outlet end of each single pipeline is connected with an air inlet end of the main pipeline, and an air outlet end of the main pipeline is connected with the dynamic air distribution instrument 2.
Illustratively, the gas supply unit 1 includes three groups of gas supply cylinders, each group of gas supply cylinders being 2, the first group of gas supply cylinders being hydrogen gas supply cylinders, first and second hydrogen gas supply cylinders a1 and a2, respectively, the second group of gas supply cylinders being carbon monoxide gas supply cylinders, first and second carbon monoxide gas supply cylinders B1 and B2, respectively, and the third group of gas supply cylinders being nitrogen gas supply cylinders, first and second nitrogen gas supply cylinders C1 and C2, respectively.
It is worth noting that the accuracy of the material secondary oxidation after reduction and the experimental result is lower in the prior art, therefore, the gas-based reduction furnace for simulating gas-based reduction further comprises a cooling protector 5 connected with the gas supply unit 1, the gas supply unit 1 is further used for providing cooling protective gas for the cooling protector 5, the cooling protective gas in the cooling protector 5 is in positive pressure, and the cooling protective gas is introduced from the top of the cooling protector 5 and flows out from the bottom of the cooling protector 5. The experimental material 14 is placed in the reduction furnace 3, the opening of the cooling protector 5 is arranged downwards, the cooling protector 5 is buckled at the top end of the reduction furnace 3, and the reduced experimental material 14 is moved out of the reduction furnace 3, enters the cooling protector 5 and is cooled under the protection of the cooling protector 5. During implementation, the experimental material 14 is subjected to gas-based reduction in the reduction furnace 3, the reduced high-temperature experimental material 14 is moved out of the reduction furnace 3 and enters the cooling protector 5, cooling protective gas is introduced into the cooling protector 5, the cooling protector 5 is moved, and the reduced high-temperature experimental material 14 is cooled under the protection of the cooling protective gas in the cooling protector 5. The gas-based reduction furnace for simulating gas-based reduction has the advantages that the feeding mode and the material taking mode of the existing gas-based reduction furnace 3 are changed, the cooling protector 5 communicated with cooling protective gas is additionally arranged, so that the cooling protector 5 has multiple functions of cooling and secondary oxidation prevention, the opening of the cooling protector 5 faces downwards, the reduced high-temperature experimental material 14 is always protected by the cooling protective gas in the cooling protector 5, and the accuracy, authenticity and reliability of the gas-based reduction simulation experiment can be greatly improved.
Illustratively, the cooling protective gas is one or more of nitrogen, argon and carbon dioxide mixed in any proportion.
In order to realize the movement of the cooling protector 5, the gas-based reduction furnace for simulating gas-based reduction further comprises a hoisting device 4, the cooling protector 5 and the experimental material 14 are sequentially hoisted below the hoisting device 4, wherein the cooling protector 5 is hoisted below the hoisting device 4 through a cooling protector hoisting wire 19, and thus, the experimental material 14 and the cooling protector 5 can be moved through the movement of the hoisting device 4.
As for the structure of the cooling protector 5, specifically, the shape is an inverted cylinder, the bottom end of the cooling protector 5 is an open end, the top end of the cooling protector 5 is a closed surface, a through hole of the cooling protector 5 is formed in the center of the top end, and the diameter of the through hole of the cooling protector 5 is larger than the outer diameter of the cooling protector sling wire 19, so that the cooling protector sling wire 19 can smoothly pass through, and the connection between the cooling protector 5 and the hoisting device 4 is realized; the side wall of the cooling protector 5 is provided with a plurality of protective air inlets along the radial direction, and the protective air inlets are connected with the air supply unit 1 through connecting pipes.
As for the structure of the reduction furnace 3, specifically, it includes a charging basket 15, a furnace tube 11 and a furnace shell; from inside to outside, charging basket 15, furnace tube 11, heating body 12 and stove outer covering set gradually, and charging basket 15 is located in furnace tube 11 and hangs below hoist and mount ware 4 and cooling protector 5 through charging basket sling 16, and charging basket sling 16's one end is connected with charging basket 15, and charging basket sling 16's the other end passes behind cooling protector 5 and is connected with hoist and mount ware 4, and experiment material 14 is arranged in charging basket 15, and heating body 12 is located between furnace tube 11 and the stove outer covering. In the implementation process, the temperature controller is started, controls the heating body 12 to heat, and heats the experimental material 14 in the material loading basket 15 and carries out gas-based reduction reaction.
In order to increase the operating temperature of the reduction furnace 3, the furnace tube 11 is made of a heat-resistant and pressure-resistant metal tube 11, the heat-resistant temperature is 1500 ℃, the pressure resistance is 10Mpa, and the heat-resistant temperature of the charging basket 15 and the charging basket suspension wires 16 is 1500 ℃.
It can be understood that the furnace tube 11 is provided with a reduction gas inlet 10 and a reduction gas outlet 17, the reduction gas inlet 10 is connected to the gas supply unit 1, for example, the reduction gas inlet 10 is provided at the bottom end of the furnace tube 11, and the reduction gas outlet 17 is provided at the top end of the furnace tube 11.
It is worth noting that the heat insulating property of the furnace shell can influence the heating of the experimental material 14 by the heating body 12, therefore, the inner wall of the furnace shell is provided with the heat insulating layer 13, the heat insulating layer 13 can isolate the heating body 12 from the external environment, the heat exchange between the heating body 12 and the external environment is reduced, and the heating accuracy of the heating body 12 to the experimental material 14 can be ensured.
In order to realize the tightness of the inner space of the furnace tube 11, the reduction furnace 3 further comprises a sealing flange 18, the sealing flange 18 comprises an upper flange and a lower flange detachably connected with the upper flange, the lower flange is fixedly connected with the top end of the furnace tube 11, the charging basket 15 moves upwards, the upper flange is covered on the top end of the charging basket 15, and the charging basket 15 and the upper flange are moved out of the reduction furnace 3 and enter the cooling protector 5. Like this, through the setting of sealing flange 18, before the basket 15 of feeding shifts out boiler tube 11, go up the flange and can cover the top of establishing at the basket 15 of feeding, seal the inner space of the basket 15 of feeding, then, go up the flange and constitute a whole with the basket 15 of feeding and get into cooling protector 5 jointly to can guarantee that experimental material 14 in the basket 15 of feeding is in the protection of cooling protection gas all the time at the removal in-process.
In order to ensure the connection among the charging basket 15, the upper flange, the cooling protector 5 and the lifting device 4, the upper flange needs to be provided with an upper flange through hole, and the charging basket suspending wire 16 sequentially penetrates through the upper flange and the cooling protector 5 and then is connected with the lifting device 4.
In order to install the reduction furnace 3, the reduction furnace 3 further includes a reduction support 22, and the furnace tube 11, the heating body 12, the insulating layer 13 and the furnace shell are all erected on the reduction support 22.
Specifically, reduction support 22 includes reduction roof, reduction intermediate plate, reduction bottom plate and reduction connecting plate, along vertical direction, reduction roof, reduction intermediate plate and reduction bottom plate from last to setting gradually down and connecting through reduction connecting plate, heating member 12, heat preservation 13 and stove shell all locate reduction intermediate plate on, the reduction roof is seted up in the endocentric roof through-hole of boiler tube 11, the diameter of roof through-hole is greater than the external diameter of boiler tube 11, is less than the internal diameter of cooling protective gas. This is because, with the reduction bracket 22 of this structure, the cooling protector 5 can be directly fastened to the reduction top plate, ensuring the stability of the cooling protector 5; in addition, a gap is formed between the reduction room plate and the reduction bottom plate, and the bottom end of the furnace tube 11 penetrates through the reduction room plate to enter a space between the reduction room plate and the reduction bottom plate, so that the gas outlet is conveniently connected with the gas supply unit 1.
Considering that the reduction support is a main bearing structure, the reduction support is a steel support by way of example.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A gas-based reduction furnace for simulating gas-based reduction is characterized by comprising a gas supply unit, a reduction furnace, a dynamic gas distribution instrument and a back pressure valve;
the gas supply unit is connected with a reduction gas inlet of the reduction furnace through a dynamic gas distributing instrument, the gas supply unit is used for providing reduction gas for the reduction furnace, and a reduction gas outlet of the reduction furnace is connected with the back pressure valve;
the reduction furnace comprises a heating body, and the experimental material is arranged in the reduction furnace and is positioned in a heating area of the heating body.
2. The gas-based reduction furnace for simulating gas-based reduction according to claim 1, further comprising a pressure gauge disposed between the dynamic gas distributor and the reduction gas inlet.
3. The gas-based reduction furnace for simulating gas-based reduction according to claim 1, further comprising a condenser and a tail gas burner, wherein the reduction gas outlet, the condenser, the back pressure valve and the tail gas burner are sequentially connected.
4. The gas-based reduction furnace for simulating gas-based reduction according to any one of claims 1 to 3, further comprising a cooling protector connected to the gas supply unit, wherein the cooling protector is filled with a cooling protective gas.
5. The gas-based reduction furnace for simulating gas-based reduction according to claim 4, further comprising a lifting device, wherein the cooling protector is lifted below the lifting device.
6. The gas-based reduction furnace for simulating gas-based reduction according to claim 4, wherein the side wall of the cooling protector is provided with a plurality of protective gas inlets along the radial direction, and the protective gas inlets are connected with the gas supply unit.
7. The gas-based reduction furnace for simulating gas-based reduction according to claim 4, wherein the reduction furnace comprises a charging basket, a furnace tube and a furnace shell; the charging basket, the furnace tube, the heating body and the furnace shell are sequentially arranged from inside to outside, and the charging basket is hung below the cooling protector.
8. The gas-based reduction furnace for simulating gas-based reduction according to claim 7, wherein the reduction gas inlet is provided at the bottom end of the furnace tube, and the reduction gas outlet is provided at the top end of the furnace tube.
9. The gas-based reduction furnace for simulating gas-based reduction according to claim 7, further comprising a sealing flange, wherein the sealing flange comprises an upper flange and a lower flange detachably connected with the upper flange, and the lower flange is fixedly connected with the top end of the furnace tube.
10. The gas-based reduction furnace for simulating gas-based reduction according to claim 7, wherein the raw furnace further comprises a reduction support, and the furnace tube, the heating body and the furnace shell are all erected on the reduction support;
the reduction support comprises a reduction top plate, a reduction room plate, a reduction bottom plate and a reduction connecting plate, the reduction top plate, the reduction room plate and the reduction bottom plate are sequentially arranged from top to bottom and are connected through the reduction connecting plate along the vertical direction, and the heating body and the furnace shell are arranged on the reduction room plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120270179.8U CN214991678U (en) | 2021-01-29 | 2021-01-29 | Gas-based reduction furnace for simulating gas-based reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120270179.8U CN214991678U (en) | 2021-01-29 | 2021-01-29 | Gas-based reduction furnace for simulating gas-based reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214991678U true CN214991678U (en) | 2021-12-03 |
Family
ID=79145622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120270179.8U Active CN214991678U (en) | 2021-01-29 | 2021-01-29 | Gas-based reduction furnace for simulating gas-based reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214991678U (en) |
-
2021
- 2021-01-29 CN CN202120270179.8U patent/CN214991678U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214991678U (en) | Gas-based reduction furnace for simulating gas-based reduction | |
| CN114921599A (en) | Method for introducing coal gas by blowing in blast furnace | |
| CN112981029B (en) | Gas-based reduction device and method for simulating gas-based reduction | |
| CN207649091U (en) | A kind of direct-fired gas type hot-blast stove | |
| CN209802074U (en) | flue gas seal cover and sintering flue gas circulation system | |
| US4070147A (en) | Method and apparatus for post-weld heat treating a tank | |
| CN219342079U (en) | Burner supporting device | |
| CN215002912U (en) | Gas-based reduction simulation furnace | |
| US4216709A (en) | Chimney | |
| CN111484023B (en) | Horizontal deacidification furnace for producing high-temperature steam based on hydrogen combustion method | |
| CN209978019U (en) | Intelligent combustor | |
| CN211373172U (en) | Alloy baking oven | |
| CN101760208A (en) | Method for installing coke dry quenching slot shell | |
| CN206666468U (en) | Gas generator | |
| JPH0376788A (en) | Drying and heating dry quenching equipment of coke oven | |
| CN211346276U (en) | Alloy baking oven | |
| JPS5975981A (en) | Dry quenching of coke | |
| CN100441705C (en) | Heat-treatment method for storage tank body of large-scale total pressure type LPG carrying vessel | |
| CN112595128B (en) | Process gas introduction method of high-temperature sintering furnace | |
| CN219735615U (en) | Yellow phosphorus tail gas burning hot air production device | |
| CN219310074U (en) | Tundish high-temperature gas discharge device | |
| JP3214966B2 (en) | Preventing steam from entering the coke cooling tower | |
| CN211739128U (en) | Thermal circulation energy-saving catalytic combustion device | |
| CN213068431U (en) | Full-automatic chemical adsorption instrument with cooling ventilation pipe insertion type air cooling function | |
| CN213066194U (en) | Improved gas stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |