CN222598386U - Drying device for low-temperature flue gas drying lump ore - Google Patents
Drying device for low-temperature flue gas drying lump ore Download PDFInfo
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- CN222598386U CN222598386U CN202420957261.1U CN202420957261U CN222598386U CN 222598386 U CN222598386 U CN 222598386U CN 202420957261 U CN202420957261 U CN 202420957261U CN 222598386 U CN222598386 U CN 222598386U
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- 239000003546 flue gas Substances 0.000 title claims abstract description 83
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 238000001035 drying Methods 0.000 title claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 238000003723 Smelting Methods 0.000 abstract description 7
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 239000002918 waste heat Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000000779 smoke Substances 0.000 description 10
- 230000008901 benefit Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009960 carding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
本实用新型公开了一种低温烟气干燥块矿的烘干装置，涉及铁前设备技术领域，为同时解决块矿含水率高和低温烟气的余热利用方案单一的问题；本实用新型块矿室为上横截面积大于下横截面积的腔室结构，烟气室呈环形腔室围绕固定在块矿室外周，且环形的内周与块矿室外周为面接触，块矿室内壁固设有耐热衬板用于防粘和耐磨损；块矿室上端开设有进矿口和尘汽出口，下端开设有出矿口；烟气室上部连接有若干个出气弯头，下部连接有若干个进气弯头，出气弯头、进气弯头和烟气室内分别固设有多个导流板；烟气室的外周设有保温壳；本实用新型能直接利用低温烟气余热烘干块矿，降低其入炉含水率，利于控制冶炼成本、降低冶炼能耗、维护高炉生产稳定性。
The utility model discloses a drying device for drying lump ore with low-temperature flue gas, relates to the technical field of pre-iron equipment, and is designed to simultaneously solve the problems of high moisture content of lump ore and single waste heat utilization scheme of low-temperature flue gas; the lump ore chamber of the utility model is a chamber structure with an upper cross-sectional area larger than a lower cross-sectional area, the flue gas chamber is an annular chamber fixed around the periphery of the lump ore chamber, and the inner periphery of the annular chamber is in surface contact with the periphery of the lump ore chamber, and a heat-resistant lining plate is fixed on the inner wall of the lump ore chamber for anti-sticking and wear resistance; an ore inlet and a dust and steam outlet are provided at the upper end of the lump ore chamber, and an ore outlet is provided at the lower end; a plurality of air outlet elbows are connected to the upper part of the flue gas chamber, and a plurality of air inlet elbows are connected to the lower part, and a plurality of guide plates are fixed to the air outlet elbows, the air inlet elbows and the flue gas chamber respectively; an insulating shell is provided on the outer periphery of the flue gas chamber; the utility model can directly utilize the waste heat of low-temperature flue gas to dry the lump ore, reduce its moisture content entering the furnace, and is beneficial to controlling smelting costs, reducing smelting energy consumption, and maintaining the production stability of the blast furnace.
Description
Technical Field
The utility model relates to the technical field of equipment before iron, in particular to a drying device for drying lump ores by low-temperature flue gas.
Background
The sintering is used as an important process of the pre-iron system, mainly adopts solid fuel such as anthracite or coke powder to supply heat, and the flue gas after denitration and the flue gas at the tail section of the cooler still have certain heat, namely about 120 ℃ and 150 ℃ respectively, and are commonly called as low-temperature flue gas, and the flue gas has considerable utilization value because of the large amount of the flue gas.
At present, the low-temperature flue gas is mainly used for hot air sintering (used for heat preservation after sintering ignition) or sintering hot air ignition after flue gas dust removal, has strict energy-saving and environment-friendly requirements, can be used for flue gas cyclic sintering, can also be used for waste heat power generation or can be used for supplying heat and water in a factory range by heat exchange to water or steam, and the heat recovery and utilization can be completed only by taking water as a heat transfer medium for heat exchange and taking the form of hot water or steam for the waste heat utilization of the low-temperature flue gas.
The pig iron raw material required by the iron and steel industry is mainly provided by blast furnace smelting, and the addition amount of the natural lump ore serving as one of furnace charges can be up to 30 percent. The natural lump ore has a certain water content, wet ore is mostly adopted to directly enter the furnace in the traditional feeding mode, and after the lump ore enters the furnace, energy is consumed for water vaporization, so that the coke ratio is increased, the smelting cost of the blast furnace is increased, and the stability of the furnace condition is affected. In addition, natural lump ores are mostly imported ores, and the natural lump ores are usually transported to a raw material wharf from sea, are unloaded, stacked in open air and then transported to lump ore material sheds of steel enterprises in batches, so that the water content of the lump ores is further increased, and the problems are even more serious in rainy seasons.
The system has the advantages of environment-friendly low-carbon and energy-saving technology and equipment upgrading before deep iron excavation, and can bring great benefits to the cost control, environment-friendly development and the like of iron and steel enterprises if the two problems can be solved simultaneously. Therefore, a drying device for drying lump ores by low-temperature flue gas is needed to solve the problem.
Disclosure of utility model
The utility model aims to provide a drying device for drying lump ores by low-temperature flue gas, so as to solve the problems of high water content of lump ores and single waste heat utilization scheme of low-temperature flue gas.
The low-temperature flue gas drying lump ore drying device comprises a lump ore chamber and a flue gas chamber, wherein the lump ore chamber is of a chamber structure with the upper cross-sectional area being larger than the lower cross-sectional area, the flue gas chamber is in an annular chamber and is fixedly arranged at the periphery of the lump ore chamber in a surrounding mode, the annular inner periphery is in surface contact with the periphery of the lump ore chamber, a heat-resistant lining plate is fixedly arranged on the inner wall of the lump ore chamber and used for preventing adhesion and abrasion, an ore inlet and a dust and gas outlet are formed in the upper end of the lump ore chamber, an ore outlet is formed in the lower end of the lump ore chamber, a plurality of air outlet elbows are connected to the upper portion of the flue gas chamber, a plurality of air inlet elbows are connected to the lower portion of the flue gas chamber, a plurality of guide plates are fixedly arranged in the air outlet elbows, and a heat preservation shell is arranged at the periphery of the flue gas chamber and wraps all outer walls of the flue gas chamber, the air inlet elbows and the air outlet elbows.
Preferably, the block mine chamber is in an inverted four-side prismatic table shape, the smoke chamber is respectively provided with an air inlet elbow and an air outlet elbow at each side of the block mine chamber, one air inlet elbow is arranged at the lower end of each side, and two air outlet elbows are arranged at the upper end of each side for balancing air flow.
The lower end and the upper end of the flue gas chamber are respectively provided with a plurality of lower interfaces and upper interfaces for connecting an air inlet elbow and an air outlet elbow, the guide plate in the flue gas chamber comprises a fold line type guide plate, a vertical guide plate and a parallel guide plate, wherein the fold line type guide plate and the vertical guide plate are arranged at the lower part in the flue gas chamber, the vertical guide plate is vertically fixedly arranged in the middle, the fold line type guide plates are symmetrically arranged at two sides of the vertical guide plate, the fold line type guide plate comprises a lower vertical part and an upper bending part, the lower vertical part is parallel to the vertical guide plate, two sides of the lower vertical part are parallel to the airflow advancing direction, the distance from one end of the upper bending part of the fold line type guide plate, which is far away from the lower vertical part, to the vertical guide plate is greater than the distance from the lower vertical part to the vertical guide plate, the parallel guide plate is arranged at the middle part in the flue gas chamber and is perpendicular to the airflow advancing direction, and the parallel guide plate is in a hollow grid shape and is used for carding airflow to enable the flue gas to be uniformly distributed.
Preferably, the two ends of the air inlet elbow are respectively provided with an air inlet I and an air outlet I, the air inlet elbow is internally provided with a plurality of arc-shaped guide plates I at the bending position, the two ends of the air outlet elbow are respectively provided with an air inlet II and an air outlet II, the air outlet elbow is internally provided with a plurality of arc-shaped guide plates II at the bending position, and the arc-shaped guide plates I and the arc-shaped guide plates II are used for enabling the flue gas to be uniformly distributed and reducing resistance.
Preferably, the inner walls of the air inlet elbow and the air outlet elbow are respectively provided with a layer of wear-resistant lining I and a layer of wear-resistant lining II which are ceramic linings or wear-resistant coatings, and the outer walls of the bent parts of the air inlet elbow and the air outlet elbow are respectively provided with a layer of external knapsack I and an external knapsack II for thickening which are alloy backpacks or grouting material backpacks.
Preferably, the heat preservation shell comprises heat preservation inner bag and heat preservation panel, and the heat preservation panel lays in the heat preservation inner bag outside.
Compared with the prior art, the utility model has the beneficial effects that:
1. this drying device of dry lump ore of low temperature flue gas, simple structure is reasonable, convenient operation and practicality, can directly utilize low temperature flue gas waste heat through water or other medium heat transfer, can also dry lump ore simultaneously, reduces its income stove moisture content, is favorable to reducing the burnt ratio, does benefit to control smelting cost, does benefit to and reduces the smelting energy consumption, does benefit to and maintains furnace condition stability and blast furnace production stability.
2. This drying device of dry lump ore of low temperature flue gas adopts the flue gas from bottom to top, and the lump ore is from last up to convection current mode down, can carry out continuous lasting, progressive heat exchange, reaches good stoving effect, and the dirt vapour in the lump ore can be handled by dirt vapour exit linkage to the dust collecting equipment nearby, discharges after reaching the standard, easily satisfies the environmental protection requirement.
3. The low-temperature flue gas drying lump ore drying device has the advantages that the arc-shaped guide plates are arranged in the inlet and outlet elbow, so that the distribution uniformity of inlet flue gas can be improved, the system resistance is reduced, the air flow is smoother, the wear-resistant lining is arranged on the inner wall, the direct scouring of the flue gas can be prevented, the friction and the abrasion are reduced, the service life of an elbow body is protected, the backpack is arranged on the outer wall of the bent part, the wear resistance and the impact resistance can be further improved, the service life of the system is prolonged, the plurality of groups of guide plates of different types are arranged in the flue gas chamber, the distribution uniformity of the flue gas can be improved, the heat exchange performance is improved, the system resistance is reduced, the heat-resistant lining plates arranged on the inner wall of the lump ore chamber have the functions of preventing and resisting the abrasion, the ore can be ensured to smoothly descend in the body, the service life of the protection chamber body is prolonged, and the heat-insulating shell is arranged outside, so that the heat dissipation can be reduced, and the heat utilization efficiency is improved.
4. The drying device for the low-temperature flue gas drying lump ore has no special requirements on equipment and materials, and has the advantages of simple scheme configuration and implementation and reliable process, so that the newly designed sintering, desulfurization and denitrification, blast furnace and corresponding old factory system reconstruction engineering, in particular to the engineering of adopting the lump ore with high water content in blast furnace smelting, can be directly adopted.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a schematic top view of an embodiment of the present utility model;
FIG. 3 is a schematic diagram of the positional relationship of the baffles in the flue gas chamber according to the present utility model;
fig. 4 is a schematic cross-sectional view of the thermal insulation shell of the present utility model.
In the figure, 1-an air inlet elbow, 101-an air inlet, 102-an air outlet, 103-an arc-shaped guide plate, 104-an abrasion-resistant lining, 105-an outer knapsack;
2-smoke chamber, 201-lower connector, 202-upper connector, 203-fold line type guide plate, 204-vertical guide plate, 205-parallel guide plate;
3-an air outlet elbow, 301-a second air inlet, 302-a second air outlet, 303-a second arc-shaped guide plate, 304-a second wear-resistant lining, 305-a second external knapsack;
4-lump ore chambers, 401-ore inlets, 402-ore outlets, 403-heat-resistant lining plates, 404-dust and steam outlets;
5-heat preservation shell, 501-heat preservation liner and 502-heat preservation panel.
Detailed Description
Referring to fig. 1 to 4, a drying device for drying lump ores by low-temperature flue gas comprises a lump ore chamber 4 and a flue gas chamber 2, wherein the lump ore chamber 4 is of a chamber structure with an upper cross-sectional area larger than a lower cross-sectional area, the flue gas chamber 2 is in an annular chamber and is fixedly arranged on the periphery of the lump ore chamber 4 in a surrounding manner, the annular inner periphery is in surface contact with the periphery of the lump ore chamber 4, a heat-resistant lining plate 403 is fixedly arranged on the inner wall of the lump ore chamber 4 and used for preventing adhesion and abrasion, an ore inlet 401 and a dust and gas outlet 404 are formed in the upper end of the lump ore chamber 4, an ore outlet 402 is formed in the lower end of the lump ore chamber 4, a plurality of air outlet elbows 3 are connected to the upper part of the flue gas chamber 2, a plurality of air inlet elbows 1 are connected to the lower part of the flue gas chamber 2, a plurality of guide plates are fixedly arranged in the air outlet elbows 3, the air inlet elbows 1 and the flue gas chamber 2 respectively, and a heat-insulating shell 5 is arranged on the periphery of the flue gas chamber 2 and wraps all the outer walls of the flue gas chamber 2, the air inlet elbows 1 and the air outlet elbows 3.
In a preferred embodiment, as shown in fig. 1 and 2, the lump ore chamber 4 is in an inverted four-sided frustum shape, the flue gas chamber 2 is respectively provided with an air inlet elbow 1 and an air outlet elbow 3 at each side of the lump ore chamber 4, one air inlet elbow 1 is arranged at the lower end of each side, and two air outlet elbows 3 are arranged at the upper end of each side for balancing air flow.
The flue gas chamber 2 can comprise a specific structure that a plurality of lower interfaces 201 and upper interfaces 202 are respectively arranged at the lower end and the upper end of the flue gas chamber 2 and are used for connecting an air inlet elbow 1 and an air outlet elbow 3, the guide plates in the flue gas chamber 2 comprise a fold line type guide plate 203, a vertical guide plate 204 and a parallel guide plate 205, wherein the fold line type guide plate 203 and the vertical guide plate 204 are arranged at the lower part in the flue gas chamber 2, the vertical guide plate 204 is vertically fixedly arranged in the middle, a plurality of fold line type guide plates 203 are symmetrically arranged at the two sides of the vertical guide plate, the fold line type guide plate 203 comprises a lower vertical part and an upper bending part, the lower vertical part is parallel to the vertical guide plate 204, the two sides of the lower vertical part are parallel to the airflow advancing direction, the distance from one end of the upper bending part of the fold line type guide plate 203 to the vertical guide plate 204 is larger than the distance from the lower vertical guide plate 204, the parallel guide plate 205 is arranged at the middle in the flue gas chamber 2, the parallel guide plate 205 is arranged perpendicular to the airflow advancing direction, the parallel guide plate 205 is in a hollow grid shape, the hollow guide plate 205 can be used for carding airflow to enable flue gas to be uniformly distributed, the flue gas is beneficial to be improved, the heat exchange condition is improved, the air channel is well distributed, the condition of a hollow side 4 is surrounded by the four-shaped chamber 4, and the chamber can be used for enclosing a chamber 4, and the chamber is in the same condition as a chamber.
The two ends of the air inlet elbow 1 are respectively provided with an air inlet I101 and an air outlet I102, a plurality of arc-shaped guide plates I103 are fixedly arranged at the bending positions in the air inlet elbow 1, two ends of the air outlet elbow 3 are respectively provided with an air inlet II 301 and an air outlet II 302, a plurality of arc-shaped guide plates II 303 are fixedly arranged at the bending positions in the air outlet elbow 3, the arc-shaped guide plates I103 and the arc-shaped guide plates II 303 are used for enabling flue gas to be uniformly distributed, the resistance is reduced, the air inlet I101 is connected with an external hot air flue, the air outlet II 302 is connected with the external air return flue, the connection mode of the air inlet I and the flue can be connected by flanges and sealing fasteners thereof, the disassembly, the overhaul and the maintenance are convenient, the air outlet I102 and the air inlet II 301 are respectively connected with the lower interface 201 and the upper interface 202, the sealing welding is preferred, the air leakage point inside the device is reduced, the sealing effect is improved, and the heat utilization efficiency is improved.
The inner walls of the air inlet elbow 1 and the air outlet elbow 3 are respectively provided with a first wear-resistant lining 104 and a second wear-resistant lining 304 which are ceramic linings or wear-resistant coatings, and the outer walls of the bending parts of the air inlet elbow 1 and the air outlet elbow 3 are respectively provided with a first external knapsack 105 and a second external knapsack 305 for thickening which are alloy backpacks or grouting material backpacks.
The heat preservation shell 5 consists of a heat preservation inner container 501 and a heat preservation panel 502, the heat preservation panel 502 is laid on the outer side of the heat preservation inner container 501, the total thickness of the heat preservation shell 5 for reference can be delta=80-100 mm, the heat preservation inner container 501 can be made of light materials such as rock wool, so that heat dissipation is reduced, a good heat effect is maintained, the cost can be saved, the heat preservation panel 502 is generally provided with a plurality of pieces which are mutually connected to form a whole, the inner container is protected, the heat preservation effect is guaranteed, the appearance is beautified, and the heat preservation shell is economical and applicable by adopting galvanized iron sheets or color steel sheets.
Specifically, in the drying device, the air inlet elbow 1 and the air outlet elbow 3 can be special-shaped steel structures with 90-degree included angles in the air inlet and outlet directions, circular pipes and prismatic tables, 2-3 circular arc guide plates are arranged at sharp corners to improve the distribution uniformity of inlet smoke, reduce the resistance of the system, and the inner wall is provided with a wear-resistant lining to prevent direct flushing of the smoke, reduce friction and abrasion and protect the service life, wherein the wear-resistant lining can be a delta=4-5 mm ceramic plate or delta=30-50 mm composite spray paint (with the inner diameter being equal to or greater than 1000 mm), and the outer circular arc wall is provided with a delta=40-80 mm alloy knapsack or grouting material knapsack to further improve the wear resistance and the impact resistance and prolong the service life of the system;
The block mine chamber 4 is of a prismatic table hollow steel structure, has larger effective volume, is tightly wrapped by a smoke field in the smoke chamber 2 which surrounds the periphery, so as to enlarge the heat exchange area and enhance the heat exchange performance, moves downwards in the body after entering from an upper mine inlet, moves relatively to hot gas flowing upwards from the smoke field, the smoke flow rate in the smoke chamber 2 can be controlled to be 18-25 m/s, the heat exchange can be carried out for a plurality of continuous hours, the good drying effect is realized, and the effective volume of the chamber body can be comprehensively determined according to the production requirement, the moisture content of the block mine and the condition of the smoke field. The heat-resistant lining plate 403 in the lump ore chamber has the functions of anti-sticking, wear-resisting and heat-resistant, and can ensure smooth descending of the ore in the body and the service life of the protection chamber body. Part of water in the lump ore volatilizes into water vapor under the action of hot flue gas, the water vapor is discharged from a dust vapor outlet at the upper part of the lump ore room, enters a dust removal system for treatment, is discharged after reaching standards, can meet the requirement of environmental protection, and the dried lump ore is discharged from an ore outlet below the lump ore room and enters an external ore discharging facility.
The above is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be covered by the present utility model. Therefore, the protection scope of the present utility model should be defined by the claims.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (6)
1. A drying device for low-temperature flue gas drying lump ores is characterized by comprising a lump ore chamber (4) and a flue gas chamber (2), wherein the lump ore chamber (4) is of a chamber structure with an upper cross-sectional area larger than a lower cross-sectional area, the flue gas chamber (2) is fixed on the periphery of the lump ore chamber (4) in a surrounding mode, the periphery of the ring is in surface contact with the periphery of the lump ore chamber (4), a heat-resistant lining plate (403) is fixedly arranged on the inner wall of the lump ore chamber (4) and used for preventing adhesion and abrasion, an ore inlet (401) and a dust steam outlet (404) are formed in the upper end of the lump ore chamber (4), an ore outlet (402) is formed in the lower end of the lump ore chamber, a plurality of air outlet elbows (3) are connected to the upper portion of the flue gas chamber (2), a plurality of air inlet elbows (1) are connected to the lower portion of the flue gas chamber, a plurality of air guide plates are fixedly arranged in the air outlet elbows (3), the air inlet elbows (1) and the flue gas chamber (2), a heat-insulating shell (5) is arranged on the periphery of the flue gas chamber (2) and wraps the outer walls of the flue gas chamber (3).
2. The drying device for low-temperature flue gas drying lump ores, as set forth in claim 1, characterized in that the lump ore chamber (4) is in an inverted four-sided pyramid shape, the flue gas chamber (2) is respectively provided with an air inlet elbow (1) and an air outlet elbow (3) at each side of the lump ore chamber (4), the air inlet elbow (1) is provided with one at the lower end of each side, and the air outlet elbow (3) is provided with two at the upper end of each side for equalizing air flow.
3. The drying device for low-temperature flue gas drying lump ores, as set forth in claim 1, is characterized in that a plurality of lower interfaces (201) and upper interfaces (202) are respectively arranged at the lower end and the upper end of the flue gas chamber (2) and are used for connecting an air inlet elbow (1) and an air outlet elbow (3), guide plates in the flue gas chamber (2) comprise a fold line type guide plate (203), a vertical guide plate (204) and a parallel guide plate (205), wherein the fold line type guide plate (203) and the vertical guide plate (204) are arranged at the lower part in the flue gas chamber (2), the vertical guide plate (204) is vertically fixed in the middle, a plurality of fold line type guide plates (203) are symmetrically arranged at the two sides of the flue gas chamber, the fold line type guide plate (203) comprises a lower vertical part and an upper bending part, the two sides of the lower vertical part are parallel to the vertical guide plate (204) and are parallel to the advancing direction of air flow, the distance from one end of the upper bending part of the lower vertical guide plate (203) to the vertical guide plate (204) is larger than the distance from the lower vertical guide plate (204) to the vertical guide plate (205), and the fold line type guide plate (204) is arranged in the parallel to the air chamber (2), and the air inlet grille (205) is arranged in the parallel direction.
4. The drying device for the low-temperature flue gas drying lump ore is characterized in that the first air inlet (101) and the first air outlet (102) are respectively arranged at two ends of the air inlet elbow (1), a plurality of first arc-shaped guide plates (103) are fixedly arranged at the bent positions inside the air inlet elbow (1), the second air inlet (301) and the second air outlet (302) are respectively arranged at two ends of the air outlet elbow (3), a plurality of second arc-shaped guide plates (303) are fixedly arranged at the bent positions inside the air outlet elbow (3), and the first arc-shaped guide plates (103) and the second arc-shaped guide plates (303) are used for enabling flue gas to be uniformly distributed and reducing resistance.
5. The drying device for the low-temperature flue gas drying lump ore, which is disclosed in claim 4, is characterized in that the inner walls of the air inlet elbow (1) and the air outlet elbow (3) are respectively provided with a layer of wear-resistant lining I (104) and a layer of wear-resistant lining II (304) which are ceramic liners or wear-resistant coatings, and the outer walls of the bending parts of the air inlet elbow (1) and the air outlet elbow (3) are respectively provided with a layer of external knapsack I (105) and an external knapsack II (305) for thickening, and the two layers of wear-resistant lining I and the wear-resistant lining II are alloy backpacks or grouting material backpacks.
6. The drying device for low-temperature flue gas drying lump ores, as set forth in claim 1, characterized in that the heat-insulating shell (5) consists of a heat-insulating inner container (501) and a heat-insulating panel (502), and the heat-insulating panel (502) is laid outside the heat-insulating inner container (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420957261.1U CN222598386U (en) | 2024-05-07 | 2024-05-07 | Drying device for low-temperature flue gas drying lump ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420957261.1U CN222598386U (en) | 2024-05-07 | 2024-05-07 | Drying device for low-temperature flue gas drying lump ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222598386U true CN222598386U (en) | 2025-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420957261.1U Active CN222598386U (en) | 2024-05-07 | 2024-05-07 | Drying device for low-temperature flue gas drying lump ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222598386U (en) |
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2024
- 2024-05-07 CN CN202420957261.1U patent/CN222598386U/en active Active
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