CN220977102U - Iron ore low-carbon agglomeration test system - Google Patents
Iron ore low-carbon agglomeration test system Download PDFInfo
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- CN220977102U CN220977102U CN202322404180.7U CN202322404180U CN220977102U CN 220977102 U CN220977102 U CN 220977102U CN 202322404180 U CN202322404180 U CN 202322404180U CN 220977102 U CN220977102 U CN 220977102U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 41
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 30
- 238000005054 agglomeration Methods 0.000 title claims abstract description 29
- 230000002776 aggregation Effects 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 239000000428 dust Substances 0.000 claims abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003546 flue gas Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 35
- 230000008569 process Effects 0.000 abstract description 31
- 238000005245 sintering Methods 0.000 abstract description 27
- 239000008188 pellet Substances 0.000 abstract description 22
- 239000000463 material Substances 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 238000004088 simulation Methods 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 4
- 239000010431 corundum Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses an iron ore low-carbon agglomeration test system, which comprises a first air blast fan, a first air blast flowmeter, a first burner, a first control valve, a lower vacuum chamber, a second control valve, a first thermocouple, a first air taking hole, a roasting cup supporting device, a second thermocouple, a second air taking hole, a third thermocouple, a roasting cup, a fourth thermocouple, a fifth thermocouple, a third air taking hole, a third control valve, an upper vacuum chamber, a fourth control valve, a fifth control valve, a second burner, a second air blast fan, a second air blast flowmeter, a flue gas flowmeter, a pressure gauge, a cooling device, a dust removing device and an exhaust fan; the utility model can simulate the carbon-free sintering of the iron ore and the pellet process of the belt roasting machine, can perform simulation experiments under different material layer heights, temperatures, flow rates and atmosphere conditions, provides a simulation test platform for the improvement of the field process, realizes low carbon and low pollutant discharge in the iron ore agglomeration process, and has various system functions, energy conservation and environmental protection.
Description
Technical Field
The utility model belongs to the technical field of iron ore production, and particularly relates to an iron ore low-carbon agglomeration test system.
Background
With the implementation of the national "two carbon" policy, the low carbon green development of the steel industry is a necessary trend. The steel production process in China mainly comprises a long flow of a blast furnace, the yield of the steel production process is more than 90% of the total yield of steel, and the yield of electric furnace steel is relatively small; therefore, in the long term in the future, the research on low-carbon emission reduction technology and equipment for the long-flow production process of the blast furnace will be developed on a larger scale. The iron ore agglomeration is one of the indispensable procedures in the long-flow production of modern blast furnaces, and the current iron ore agglomeration process mainly comprises a sintering process and a pelletizing process, wherein the furnace burden structure of the blast furnaces in China tends to be 65-85% of high-alkalinity sintered ore, 10-25% of pellet ore and 5-10% of natural lump ore, so that the iron ore agglomeration procedure is an important component part of iron and steel smelting in China and bears an important task of providing high-quality furnace burden for blast furnace ironmaking.
In the iron ore agglomeration process, sintering is mainly used for treating coarse-grain iron ore powder resources, pellets are mainly used for treating fine-grain iron ore concentrate resources, and compared with pellet production and sintering production under the low-carbon green development background, the method has the greatest advantages of low process energy consumption, low carbon emission and pollutant emission, and the pellet production process energy consumption, CO2 emission intensity, flue gas amount and ore return rate are respectively about 42.3%, 32.6%, 57.6% and 5.6% of sintered ores; according to the statistics of key domestic iron and steel enterprises in 2018 and 2019, the energy consumption of a pellet system is 29.58 and 28.75kgce/t respectively, and the energy consumption of a sintering system is 52.03 and 50.60kgce/t respectively, which are different from 22.45 and 22.03kgce/t, so that the pellet process, especially the current mainstream pellet process of a belt roasting machine, is developed and optimized, and the reduction of carbon emission of the iron and steel industry, especially the operation in front of a blast furnace iron is facilitated; meanwhile, the possibility of low-carbon agglomeration by using the sintering powder is sought through the exploration of technology and equipment, for example, an invention patent CN112708754A discloses a carbon-free sintering method and system for iron ore powder, and the carbon-free sintering technology for treating the sintering powder by using the pellet production process of a belt type roasting machine plays an important role in energy conservation, emission reduction and low carbon development of the iron ore agglomeration process.
The existing pellet production process simulation test system is generally used for simulating the drying and preheating stage on a chain grate in a belt roasting machine or a chain grate-rotary kiln process, the roasting temperature in the iron ore powder carbon-free sintering process is higher, the liquid phase generation amount in a material layer is more, the air permeability of the material layer is reduced, the negative pressure is higher, the requirements on the conditions such as wind temperature, wind direction, time, negative pressure and flow speed in the production process are stricter and have uncertainty compared with the conditions of the belt roasting machine or the chain grate, and therefore, an iron ore low-carbon agglomeration test system needs to be designed, guidance and basis are provided for optimizing and developing an iron ore agglomeration process and equipment, the process of the belt roasting machine pellet can be simulated, and guidance can be provided for the iron ore powder carbon-free sintering technology.
Disclosure of utility model
The utility model provides a low-carbon iron ore agglomeration test system, which can solve the problems of higher roasting temperature, more liquid phase generation amount in a material layer, lower air permeability of the material layer and higher negative pressure in the carbon-free sintering process of iron ore powder in the prior art, and has stricter and uncertainty compared with a belt roasting machine or a chain grate machine in terms of requirements on conditions such as wind temperature, wind direction, time, negative pressure, flow speed and the like in the production process.
In order to solve the problems, the technical scheme provided by the utility model is as follows:
The embodiment of the utility model provides an iron ore low-carbon agglomeration test system, which comprises a first air blast fan (1), a first air blast flowmeter (2), a first burner (3), a first control valve (4), a lower vacuum chamber (5), a second control valve (6), a first thermocouple (7), a first air taking hole (8), a roasting cup supporting device (9), a second thermocouple (10), a second air taking hole (11), a third thermocouple (12), a roasting cup (13), a fourth thermocouple (14), a fifth thermocouple (15), a third air taking hole (16), a third control valve (17), an upper vacuum chamber (18), a fourth control valve (19), a fifth control valve (20), a second burner (21), a second air blast fan (22), a second air blast flowmeter (23), a smoke flowmeter (24), a pressure gauge (25), a cooling device (26), a dust removing device (27) and an exhaust fan (28);
The first burner (3) is connected with the lower vacuum chamber (5) through a pipeline by the first control valve (4), the first blower fan (1) is connected into the pipeline between the first burner (3) and the first control valve (4) through the pipeline by the first blower flowmeter (2), and the first thermocouple (7) and the first air taking hole (8) are arranged in the lower vacuum chamber (5);
The second burner (21) is connected with the upper vacuum chamber (18) through a pipeline via the fifth control valve (20), and the second blower fan (22) is connected with the pipeline between the second burner (21) and the fifth control valve (20) through a pipeline via the second blower flow meter (23); the fifth thermocouple (15) and the third air taking hole (16) are arranged in the upper vacuum chamber (18); a branch pipe is arranged on a pipeline between the fifth control valve (20) and the upper vacuum chamber (18), the fourth control valve (19) is arranged on the branch pipe, and the branch pipe can be externally connected with an air distribution system;
The roasting cup (13) is fixed on the roasting cup supporting device (9) through a fastener, the roasting cup (13) is provided with the second thermocouple (10), the second air taking hole (11), the third thermocouple (12) and the fourth thermocouple (14), wherein the second thermocouple (10) is positioned at the lower part of the roasting cup (13), the second air taking hole (11) and the third thermocouple (12) are positioned at the middle part of the roasting cup (13), and the fourth thermocouple (14) is positioned at the upper part of the roasting cup (13);
The utility model provides a flue gas flowmeter, including last vacuum chamber (18), calcination cup (13) with the axis of vacuum chamber (5) down is located on same straight line, go up vacuum chamber (18) through the branch pipeline via third control valve (17) with the entry pipeline of cooling device (26), vacuum chamber (5) down through the branch pipeline via second control valve (6) with the entry pipeline of cooling device (26) is connected, cooling device (26) through the pipeline with flue gas flowmeter (24), dust collector (27) with air exhauster (28) are connected in proper order.
According to an alternative embodiment of the utility model, the lower vacuum chamber (5) comprises a lower vacuum chamber body and a lower heat insulation layer, wherein the lower heat insulation layer is arranged on the inner wall of the lower vacuum chamber body.
According to an alternative embodiment of the utility model, the upper vacuum chamber (18) comprises an upper vacuum chamber body and an upper insulation layer, the upper insulation layer being arranged on the inner wall of the upper vacuum chamber body.
According to an alternative embodiment of the utility model, the roasting cup (13) comprises a roasting cup body and an auxiliary heat insulation layer, wherein the auxiliary heat insulation layer is arranged on the inner wall of the roasting cup body, and a high-temperature resistant alloy grate bar is further arranged at the bottom of the roasting cup (13).
According to an alternative embodiment of the utility model, the outer parts of the second thermocouple (10), the third thermocouple (12) and the fourth thermocouple (14) are provided with high temperature resistant stainless steel protective sleeves.
According to an alternative embodiment of the utility model, the roasting cup support means (9) comprises a column for being rotatable in a horizontal direction and a vertical rotation support for being rotatable in a vertical direction, the vertical rotation support being connected to the column by means of a screw and the vertical rotation support being for being vertically movable up and down along the column.
According to an alternative embodiment of the utility model, a hydraulic jack is arranged at the bottom of the lower vacuum chamber (5) for realizing vertical movement of the lower vacuum chamber (5) up and down.
According to an alternative embodiment of the utility model, the branch pipe between the lower vacuum chamber (5) and the first control valve (4) and the branch pipe between the lower vacuum chamber (5) and the second control valve (6) are both high temperature resistant metal hoses.
According to an alternative embodiment of the utility model, asbestos washers are arranged between the lower vacuum chamber (5), the upper vacuum chamber (18) and the roasting cup (13).
Compared with the prior art, the utility model has the following beneficial effects:
(1) The first burner 3 in the iron ore low-carbon agglomeration test system is connected with the lower vacuum chamber through a pipeline by a first control valve, and the upper vacuum chamber is connected with the inlet pipeline of the cooling device through a branch pipeline by a third control valve, so that the processes of exhausting drying, preheating, roasting, soaking and cooling of pellet raw materials or sintering raw materials can be realized. The second burner is connected with the upper vacuum chamber through a pipeline via a fifth control valve, the lower vacuum chamber is connected with an inlet pipeline of a cooling device through a branch pipeline via a second control valve, and the cooling device is sequentially connected with a dust removing device and an exhaust fan through pipelines, so that blast drying of pellet raw materials or sintering raw materials can be realized.
(2) The control of different atmospheres in the pellet and carbon-free sintering process can be realized by arranging a branch pipe on a pipeline between the fifth control valve and the upper vacuum chamber and externally connecting an air distribution system through the fourth control valve; the second thermocouple, the second air taking hole, the third thermocouple and the fourth thermocouple are arranged on the cup body of the roasting cup, the second thermocouple is positioned at the lower part of the roasting cup, the second air taking hole and the third thermocouple are positioned at the middle part of the roasting cup, the fourth thermocouple is positioned at the upper part of the roasting cup, so that the detection and analysis of the temperature inside the material layer and the gas component inside the material layer with different heights in the roasting process can be realized, in addition, the high-temperature resistant stainless steel protective sleeves are arranged outside the second thermocouple, the third thermocouple and the fourth thermocouple, the liquid phase bonding thermocouples generated in the carbon-free sintering process of the sintered powder can be prevented, and the effect of protecting the thermocouples can be realized; in the experimental process of the simulated pellet belt roasting machine, corundum balls are used for bedding, and in the experimental process of the simulated sintering powder carbon-free sintering, corundum balls are used for bedding and paving the rim charge, so that the high-temperature resistant alloy grate bars or the heat insulation lining of the roasting cup are prevented from being damaged by adhesion of pellets or sintering ores.
(3) The iron ore low-carbon agglomeration test system disclosed by the utility model can simulate the iron ore carbon-free sintering and belt type roasting machine pellet process, can perform simulation experiments under different material layer heights, temperatures, flow rates and atmosphere conditions, provides a simulation test platform for the improvement of field processes, realizes low carbon and low pollutant discharge in the iron ore agglomeration process, has various system functions, is simple and compact in structure, is convenient to operate, is energy-saving and environment-friendly.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an iron ore low-carbon agglomeration test system according to an embodiment of the present application.
Reference numerals: the first blower fan 1, the first blower flow meter 2, the first burner 3, the first control valve 4, the lower vacuum chamber 5, the second control valve 6, the first thermocouple 7, the first air taking hole 8, the roasting cup supporting device 9, the second thermocouple 10, the second air taking hole 11, the third thermocouple 12, the roasting cup 13, the fourth thermocouple 14, the fifth thermocouple 15, the third air taking hole 16, the third control valve 17, the upper vacuum chamber 18, the fourth control valve 19, the fifth control valve 20, the second burner 21, the second blower fan 22, the second blower flow meter 23, the flue gas flow meter 24, the pressure gauge 25, the cooling device 26, the dust removing device 27 and the air draft fan 28.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
As shown in fig. 1, the embodiment of the utility model provides a low-carbon agglomeration test system for iron ore, which comprises a first air blast fan 1, a first air blast flowmeter 2, a first burner 3, a first control valve 4, a lower vacuum chamber 5, a second control valve 6, a first thermocouple 7, a first air taking hole 8, a roasting cup supporting device 9, a second thermocouple 10, a second air taking hole 11, a third thermocouple 12, a roasting cup 13, a fourth thermocouple 14, a fifth thermocouple 15, a third air taking hole 16, a third control valve 17, an upper vacuum chamber 18, a fourth control valve 19, a fifth control valve 20, a second burner 21, a second air blast fan 22, a second air blast flowmeter 23, a flue gas flowmeter 24, a pressure gauge 25, a cooling device 26, a dust removing device 27 and an exhaust fan 28.
The first burner 3 is connected with the lower vacuum chamber 5 through a pipeline via a first control valve 4, the first blower fan 1 is connected with the pipeline between the first burner 3 and the first control valve 4 through the pipeline via a first blower flowmeter 2, and a first thermocouple 7 and a first air taking hole 8 are arranged in the lower vacuum chamber 5.
The second burner 21 is connected with the upper vacuum chamber 18 through a pipeline via a fifth control valve 20, and the second blower 22 is connected with the pipeline between the second burner 21 and the fifth control valve 20 through a pipeline via a second blower flow meter 23; a fifth thermocouple 15 and a third air taking hole 16 are arranged in the upper vacuum chamber 18; a branch pipe is arranged on a pipeline between the fifth control valve 20 and the upper vacuum chamber 18, a fourth control valve 19 is arranged on the branch pipe, and the branch pipe can be externally connected with a gas distribution system.
The baking cup 13 is fixed on the baking cup supporting device 9 through a fastener, the baking cup 13 is provided with a second thermocouple 10, a second air taking hole 11, a third thermocouple 12 and a fourth thermocouple 14, wherein the second thermocouple 10 is positioned at the lower part of the baking cup 13, the second air taking hole 11 and the third thermocouple 12 are positioned at the middle part of the baking cup 13, and the fourth thermocouple 14 is positioned at the upper part of the baking cup 13.
The central axes of the upper vacuum chamber 18, the roasting cup 13 and the lower vacuum chamber 5 are positioned on the same straight line, the upper vacuum chamber 18 is connected with an inlet pipeline of a cooling device 26 through a branch pipeline via a third control valve 17, the lower vacuum chamber 5 is connected with an inlet pipeline of the cooling device 26 through a branch pipeline via a second control valve 6, and the cooling device 26 is connected with a flue gas flowmeter 24, a dust removing device 27 and an exhaust fan 28 in sequence through pipelines.
The lower vacuum chamber 5 comprises a lower vacuum chamber body and a lower heat preservation layer, and the lower heat preservation layer is arranged on the inner wall of the lower vacuum chamber body. The upper vacuum chamber 18 includes an upper vacuum chamber body and an upper insulation layer provided on an inner wall of the upper vacuum chamber body.
The baking cup 13 comprises a baking cup body and an auxiliary heat preservation layer, wherein the auxiliary heat preservation layer is arranged on the inner wall of the baking cup body, high-temperature-resistant alloy grate bars are arranged at the bottom of the baking cup 13 and can be detached and replaced, and different height specifications can be selected. The beaker 13 is fixed to the beaker supporting means 9 by a fastener, and the beaker supporting means 9 includes a pillar for being rotatable in a horizontal direction and a vertical rotation bracket for being rotatable in a vertical direction, the vertical rotation bracket being connected to the pillar by a screw, the vertical rotation bracket being for being vertically movable up and down along the pillar.
The bottom of the lower vacuum chamber 5 is provided with a hydraulic jack for realizing vertical movement of the lower vacuum chamber 5. The branch pipe between the lower vacuum chamber 5 and the first control valve 4 and the branch pipe between the lower vacuum chamber 5 and the second control valve 6 are high temperature resistant metal hoses. Asbestos washers are arranged between the lower vacuum chamber 5, the upper vacuum chamber 18 and the roasting cup 13 for heat insulation. The outside of the second thermocouple 10, the third thermocouple 12 and the fourth thermocouple 14 are all provided with high temperature resistant stainless steel protective sleeves.
As described above, the first burner 3 in this embodiment is connected to the lower vacuum chamber 5 through the first control valve 4 by a pipe, and the upper vacuum chamber 18 is connected to the inlet pipe of the cooling device 26 through the third control valve 17 by a branch pipe, so that the processes of air-draft drying, preheating, firing, soaking and cooling of pellet raw materials or sintering raw materials can be realized. The second burner 21 is connected with the upper vacuum chamber 18 through a pipeline via a fifth control valve 20, the lower vacuum chamber 5 is connected with an inlet pipeline of a cooling device 26 through a branch pipeline via a second control valve 6, and the cooling device 26 is connected with a dust removing device 27 and an exhaust fan 28 in sequence through pipelines, so that blast drying of pellet raw materials or sintering raw materials can be realized.
A branch pipe is arranged on a pipeline between the fifth control valve 20 and the upper vacuum chamber 18, and the fourth control valve 19 is externally connected with a gas distribution system, so that the control of different atmospheres in the pellet and carbon-free sintering process can be realized; the second thermocouple 10, the second air taking hole 11, the third thermocouple 12 and the fourth thermocouple 14 are arranged on the cup body of the roasting cup 13, the second thermocouple 10 is positioned at the lower part of the roasting cup 13, the second air taking hole 11 and the third thermocouple 12 are positioned at the middle part of the roasting cup 13, the fourth thermocouple 14 is positioned at the upper part of the roasting cup 13, so that the detection and analysis of the temperature inside the material layer and the gas composition inside the material layer at different heights in the roasting process can be realized, and in addition, the high-temperature resistant stainless steel protective sleeves are arranged outside the second thermocouple 10, the third thermocouple 12 and the fourth thermocouple 14, so that the liquid-phase bonding thermocouples generated in the carbon-free sintering process of the sintered powder can be prevented, and the effect of protecting the thermocouples can be realized; in the experimental process of the simulated pellet belt roasting machine, corundum balls are used for bedding, and in the experimental process of the simulated sintering powder carbon-free sintering, corundum balls are used for bedding and paving the rim charge, so that the high-temperature resistant alloy grate bars or the heat insulation lining of the roasting cup are prevented from being damaged by adhesion of pellets or sintering ores.
In summary, although the present utility model has been described in terms of the preferred embodiments, the above-mentioned embodiments are not intended to limit the utility model, and those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the utility model, so that the scope of the utility model is defined by the appended claims.
Claims (9)
1. The iron ore low-carbon agglomeration test system is characterized by comprising a first air blowing fan (1), a first air blowing flowmeter (2), a first burner (3), a first control valve (4), a lower vacuum chamber (5), a second control valve (6), a first thermocouple (7), a first air taking hole (8), a roasting cup supporting device (9), a second thermocouple (10), a second air taking hole (11), a third thermocouple (12), a roasting cup (13), a fourth thermocouple (14), a fifth thermocouple (15), a third air taking hole (16), a third control valve (17), an upper vacuum chamber (18), a fourth control valve (19), a fifth control valve (20), a second burner (21), a second air blowing fan (22), a second air blowing flowmeter (23), a smoke flowmeter (24), a pressure gauge (25), a cooling device (26), a dust removing device (27) and an air exhausting fan (28);
The first burner (3) is connected with the lower vacuum chamber (5) through a pipeline by the first control valve (4), the first blower fan (1) is connected into the pipeline between the first burner (3) and the first control valve (4) through the pipeline by the first blower flowmeter (2), and the first thermocouple (7) and the first air taking hole (8) are arranged in the lower vacuum chamber (5);
The second burner (21) is connected with the upper vacuum chamber (18) through a pipeline via the fifth control valve (20), and the second blower fan (22) is connected with the pipeline between the second burner (21) and the fifth control valve (20) through a pipeline via the second blower flow meter (23); the fifth thermocouple (15) and the third air taking hole (16) are arranged in the upper vacuum chamber (18); a branch pipe is arranged on a pipeline between the fifth control valve (20) and the upper vacuum chamber (18), the fourth control valve (19) is arranged on the branch pipe, and the branch pipe can be externally connected with an air distribution system;
The roasting cup (13) is fixed on the roasting cup supporting device (9) through a fastener, the roasting cup (13) is provided with the second thermocouple (10), the second air taking hole (11), the third thermocouple (12) and the fourth thermocouple (14), wherein the second thermocouple (10) is positioned at the lower part of the roasting cup (13), the second air taking hole (11) and the third thermocouple (12) are positioned at the middle part of the roasting cup (13), and the fourth thermocouple (14) is positioned at the upper part of the roasting cup (13);
The utility model provides a flue gas flowmeter, including last vacuum chamber (18), calcination cup (13) with the axis of vacuum chamber (5) down is located on same straight line, go up vacuum chamber (18) through the branch pipeline via third control valve (17) with the entry pipeline of cooling device (26), vacuum chamber (5) down through the branch pipeline via second control valve (6) with the entry pipeline of cooling device (26) is connected, cooling device (26) through the pipeline with flue gas flowmeter (24), dust collector (27) with air exhauster (28) are connected in proper order.
2. The iron ore low-carbon agglomeration test system according to claim 1, wherein the lower vacuum chamber (5) comprises a lower vacuum chamber body and a lower heat insulation layer, the lower heat insulation layer being arranged on an inner wall of the lower vacuum chamber body.
3. The iron ore low-carbon agglomeration testing system according to claim 1, wherein said upper vacuum chamber (18) comprises an upper vacuum chamber body and an upper heat insulating layer, said upper heat insulating layer being provided on an inner wall of said upper vacuum chamber body.
4. The iron ore low-carbon agglomeration test system according to claim 1, wherein the roasting cup (13) comprises a roasting cup body and an auxiliary heat insulation layer, the auxiliary heat insulation layer is arranged on the inner wall of the roasting cup body, the bottom of the roasting cup (13) is further provided with a high-temperature-resistant alloy grate bar, and the high-temperature-resistant alloy grate bar is characterized in that the high-temperature-resistant alloy grate bar can be detachably replaced and can be selected for different height specifications.
5. The iron ore low-carbon agglomeration testing system according to claim 1, wherein the second thermocouple (10), the third thermocouple (12) and the fourth thermocouple (14) are all provided with high temperature resistant stainless steel protective sleeves on the outside.
6. The iron ore low-carbon agglomeration test system according to claim 1, wherein the roasting cup supporting means (9) comprises a pillar for being rotatable in a horizontal direction and a vertical rotation bracket for being rotatable in a vertical direction, the vertical rotation bracket is connected to the pillar by a screw, and the vertical rotation bracket is for being vertically movable up and down along the pillar.
7. The iron ore low-carbon agglomeration test system according to claim 1, wherein the bottom of the lower vacuum chamber (5) is provided with a hydraulic jack for realizing the vertical movement of the lower vacuum chamber (5).
8. The iron ore low-carbon agglomeration test system according to claim 1, wherein the branch pipe between the lower vacuum chamber (5) and the first control valve (4) and the branch pipe between the lower vacuum chamber (5) and the second control valve (6) are both high temperature resistant metal hoses.
9. The iron ore low-carbon agglomeration test system according to claim 1, wherein asbestos washers are arranged between the lower vacuum chamber (5), the upper vacuum chamber (18) and the roasting cup (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404180.7U CN220977102U (en) | 2023-09-05 | 2023-09-05 | Iron ore low-carbon agglomeration test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404180.7U CN220977102U (en) | 2023-09-05 | 2023-09-05 | Iron ore low-carbon agglomeration test system |
Publications (1)
| Publication Number | Publication Date |
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| CN220977102U true CN220977102U (en) | 2024-05-17 |
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