CN110669892A - Device for reducing iron oxide - Google Patents
Device for reducing iron oxide Download PDFInfo
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- CN110669892A CN110669892A CN201911155284.0A CN201911155284A CN110669892A CN 110669892 A CN110669892 A CN 110669892A CN 201911155284 A CN201911155284 A CN 201911155284A CN 110669892 A CN110669892 A CN 110669892A
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- iron oxide
- reaction chambers
- air supply
- reaction
- plate
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 239000000463 material Substances 0.000 claims abstract description 125
- 238000006243 chemical reaction Methods 0.000 claims abstract description 95
- 238000002485 combustion reaction Methods 0.000 claims abstract description 34
- 239000000571 coke Substances 0.000 claims abstract description 25
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000009467 reduction Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 48
- 238000006722 reduction reaction Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
Abstract
The invention provides a device for reducing iron oxide, which comprises a reaction chamber, a combustion chamber, a material conveying vehicle and an air supply pipeline. A plurality of reaction chambers are arranged at intervals along the same direction, and the front side and the rear side of each reaction chamber are respectively provided with a furnace door; the combustion chambers are arranged in a plurality and are respectively arranged between the adjacent reaction chambers; each combustion chamber at least comprises two heat conducting walls; each combustion chamber heats the reaction chamber adjacent to the combustion chamber by means of the heat conducting wall; the material transporting vehicles are respectively arranged in each reaction chamber and are respectively used for loading ferric oxide materials and unloading reduction products; the gas supply pipeline is arranged below the reaction chambers, is respectively communicated with the reaction chambers through pipelines and is used for supplying coke oven gas or/and air into the reaction chambers. The device for reducing the iron oxide provided by the invention can quickly reduce the iron oxide material, improve the reduction efficiency of the iron oxide and reduce the production cost.
Description
Technical Field
The invention belongs to the field of reduced iron production, and particularly relates to a device for reducing iron oxide.
Background
At present, the processes for directly reducing iron oxide generally comprise coal-based direct reduction and gas-based direct reduction processes, representing equipment comprising a coal-based rotary kiln, a gas-based shaft furnace and the like, and the existing device for directly reducing iron oxide has the problems of long reaction time, low reduction efficiency and low yield of reduced products of a single set of equipment.
Disclosure of Invention
The invention aims to provide a device for reducing iron oxide, and aims to solve the technical problems of long reaction time, low reduction efficiency and low yield of reduced products of a single set of equipment in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: there is provided an apparatus for reducing iron oxide, comprising:
a plurality of reaction chambers are arranged at intervals along the same direction, and the front side and the rear side of each reaction chamber are respectively provided with a furnace door;
a plurality of combustion chambers, wherein each combustion chamber is arranged between the adjacent reaction chambers; each combustion chamber at least comprises two heat conducting walls; each combustion chamber heats the reaction chamber adjacent to the combustion chamber by means of the heat conducting wall;
a plurality of material transporting vehicles are arranged in each reaction chamber respectively, and each material transporting vehicle is used for carrying ferric oxide materials and reducing products; and
and the gas supply pipeline is arranged below the reaction chambers, is respectively communicated with the reaction chambers through pipelines and is used for supplying coke oven gas or/and air into the reaction chambers.
As another embodiment of the present application, the material transporting vehicle includes:
the bottom plate is provided with a plurality of walking wheels;
the four side plates are respectively arranged on the bottom plate and are used for forming a box body with an opening at the top end together with the bottom plate; and
the material blocking part is arranged in the box body, is fixedly connected with the bottom plate, is used for separating the ferric oxide material and forms a hollow structure at the lower part of the box body; the material blocking piece is provided with a plurality of vent holes.
As another embodiment of this application, it includes the board of falling V-arrangement to keep off the material spare, the both ends of the board of falling V-arrangement respectively with the bottom plate is connected, be equipped with a plurality of air vents on the board of falling V-arrangement.
As another embodiment of the present application, a plurality of feed openings are provided on the bottom plate; the bottom plate is rotatably connected with a plurality of supporting plates, and the supporting plates correspond to the feed openings one by one and are used for covering the feed openings; the walking wheels are respectively arranged on the supporting plates.
As another embodiment of the present application, each of the supporting plates is provided with a clamping plate;
the lower plate surface of the bottom plate is provided with a plurality of clamping grooves, and each clamping groove is used for being clamped with the clamping plate.
As another embodiment of the present application, each of the side plates is provided with a plurality of through holes penetrating the side plate in a thickness direction.
As another embodiment of the present application, the gas supply line includes:
the first air supply pipe is arranged below the reaction chambers, one end of the first air supply pipe is sealed, the other end of the first air supply pipe is communicated with a first air supply source, a plurality of first branch pipes are arranged on the first air supply pipe, and the first branch pipes penetrate through the bottoms of the reaction chambers respectively and are communicated with the reaction chambers; and
the second air supply pipe is arranged below the reaction chambers and is adjacent to the first air supply pipe, one end of the second air supply pipe is sealed, the other end of the second air supply pipe is communicated with a second air supply source, a plurality of second branch pipes are arranged on the second air supply pipe, and the second branch pipes penetrate through the bottoms of the reaction chambers and the reaction chambers respectively.
As another embodiment of the application, a driving member for driving the material transporting vehicle to move is arranged outside the reaction chamber;
and the material conveying vehicle is provided with a connecting piece used for being connected with the pushing piece.
As another embodiment of the present application, the material blocking member is connected to each of the side plates by a reinforcing rib.
As another embodiment of the present application, the apparatus for reducing iron oxide further comprises a plurality of hoppers for feeding materials into the material transporting vehicle, and each hopper is disposed outside each reaction chamber.
The device for reducing the iron oxide has the advantages that: compared with the prior art, the device for reducing the iron oxide has the advantages that the coke oven gas is combusted in the reaction chamber, the iron oxide material is directly heated, the heat conduction wall is used for supplementing heat transfer, and the heating speed of the iron oxide material can be greatly increased. The coke oven gas can be used as a heat supply agent and a reducing agent, and can be accurately put according to the temperature in the reaction chamber, so that the reduction reaction is ensured to occur at the optimal reduction temperature, and the reduction efficiency of the ferric oxide material is improved. The iron oxide material is separated from the side wall of the reaction chamber by the material transporting vehicle, so that the adhesion of the iron oxide to the side wall of the reaction chamber is avoided, and the transportation of a final product is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of an apparatus for reducing iron oxide according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a material transporting vehicle used in the present invention;
FIG. 3 is a schematic side view of the material cart in FIG. 2;
fig. 4 is a schematic top view of the material transporting vehicle adopted in fig. 2;
FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 3;
FIG. 6 is a cross-sectional structural view of the pallet removal structure of FIG. 5;
fig. 7 is an enlarged schematic view of the structure at B in fig. 6.
Fig. 8 is a schematic side view of the material transporting vehicle in fig. 3 in unloading operation.
In the figure: 2. a reaction chamber; 21. a furnace door; 3. a combustion chamber; 31. a heat conducting wall; 4. a material transporting vehicle; 41. a base plate; 411. a feeding port; 412. a support plate; 413. clamping a plate; 414. a card slot; 42. a side plate; 421. a through hole; 43. a material blocking part; 431. a vent hole; 44. a running wheel; 5. a gas supply line; 51. a first gas supply pipe; 511. a first branch pipe; 52. a second gas supply pipe; 521. a second branch pipe; 6. and (5) reinforcing ribs.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2 together, an apparatus for reducing iron oxide according to the present invention will now be described. The device for reducing the iron oxide comprises a plurality of reaction chambers 2, a combustion chamber 3, a material conveying vehicle 4 and an air supply pipeline 5, wherein the reaction chambers 2 are arranged at intervals along the same direction, and the front side and the rear side of each reaction chamber 2 are respectively provided with a furnace door 21; a plurality of combustion chambers 3 are arranged, and each combustion chamber 3 is arranged between the adjacent reaction chambers 2; each combustion chamber 3 comprises at least two heat conducting walls 31; each combustion chamber 3 heats the reaction chamber 2 adjacent to the combustion chamber 3 by means of the heat conducting wall 31; a plurality of material transporting vehicles 4 are respectively arranged in each reaction chamber 2, and each material transporting vehicle 4 is respectively used for loading ferric oxide materials and reducing products; the gas supply pipeline 5 is arranged below the reaction chambers 2, and the gas supply pipeline 5 is respectively communicated with each reaction chamber 2 through a pipeline and is used for supplying coke oven gas or/and air into each reaction chamber 2.
Firstly, continuously introducing coke oven gas into a combustion chamber 3 for combustion, heating a reaction chamber 2 by heat generated by combustion of the combustion chamber 3 through a heat conducting wall 31, then loading iron oxide materials into a material conveying vehicle 4, conveying the material conveying vehicle 4 into the reaction chamber 2, then closing a furnace door 21, opening an air supply pipeline 5, and simultaneously introducing the coke oven gas and air into the reaction chamber 2 through the air supply pipeline 5. In the production process, the temperature in the reaction chamber 2 heated by the combustion chamber 3 is above the ignition point of the coke oven gas, so that the coke oven gas and air supplied from the air supply pipeline 5 enter the reaction chamber 2 to be combusted, the iron oxide raw material is heated from the lower part of the reaction chamber 2, and the iron oxide raw material at the moment absorbs the heat supplied by the heat conduction walls 31 at the two sides and the heat supplied from the lower part of the reaction chamber 2 respectively. After the temperature in the reaction chamber 2 reaches a certain value, the gas supply pipeline 5 only supplies coke oven gas into the reaction chamber 2, at the moment, the coke oven gas is not combusted any more and is used as a reducing agent to perform a reduction reaction with an iron oxide material, after the reaction is finished, the coke oven gas is closed, the furnace door 21 is opened, the material conveying vehicle 4 is pushed out of the reaction chamber 2, and the next step is carried out, so that the material conveying vehicle 4 sequentially finishes the operation of unloading a reduction product and reloading the iron oxide.
Compared with the prior art, the device for reducing the iron oxide provided by the invention has the advantages that the coke oven gas is combusted in the reaction chamber 2 to directly heat the iron oxide material as the supplement of the heat transfer of the heat conducting wall 31, so that the temperature rise speed of the iron oxide material can be greatly increased, and the time required by the whole process flow is shortened. The coke oven gas is used as a heat supply agent at the initial stage and used as a reducing agent at the later stage, and can be accurately put according to the temperature in the reaction chamber 2, so that the reduction reaction is ensured to occur at the optimal reduction temperature, and the reduction efficiency of the ferric oxide material is improved. The iron oxide material is separated from the side wall of the reaction chamber 2 by the material transporting vehicle 4, so that the adhesion of the iron oxide to the side wall of the reaction chamber 2 is avoided, and the transportation of the final reduction product is facilitated. The reaction chambers 2 are provided with a plurality of reaction chambers, so that the heat energy generated by each combustion chamber 3 is effectively utilized, and the working efficiency of reducing the ferric oxide materials by the coke oven for reducing the ferric oxide is improved.
Each of the reaction chambers 2 and each of the combustion chambers 3 are communicated with an exhaust gas treatment device through a pipeline. The tail gas treatment device can collect and treat the waste gas and the redundant coal gas generated by each reaction chamber 2 and each combustion chamber 3 in time, and the environmental protection performance of the device for reducing the ferric oxide is improved.
In this embodiment, the material transporting cart 4 is made of a metal burning-resistant material, has excellent thermal conductivity, and can rapidly transfer the temperature of the reaction chamber 2 to the iron oxide material.
Be equipped with temperature measurement component in the reacting chamber 2, temperature measurement component includes temperature sensor, is connected, sets up in the controller outside reacting chamber 2 and the temperature display device who is connected with the controller electricity with temperature sensor electricity, and the operating personnel can be according to temperature display device outside reacting chamber 2, the timely temperature condition of knowing in the reacting chamber 2.
Referring to fig. 1 to 7 together, the material transporting vehicle 4 includes a bottom plate 41, a side plate 42 and a material blocking member 43, wherein the bottom plate 41 is provided with a plurality of traveling wheels 44; the four side plates 42 are respectively arranged on the bottom plate 41 and on four sides of the bottom plate 41, and adjacent side plates 42 are connected and used for forming a rectangular box body with an open top end with the bottom plate 41; the material blocking part 43 is arranged in the rectangular box body, is fixedly connected with the bottom plate 41, is used for separating iron oxide materials and forms a hollow structure at the lower part of the rectangular box body; the material blocking member 43 is provided with a plurality of vent holes 431. The coke oven gas enters the reaction chamber 2 from the gas supply pipeline 5 and enters the hollow structure formed by the material blocking part 43 in the rectangular box body, the coke oven gas is combusted in the hollow structure to heat the ferric oxide material, meanwhile, hot waste gas generated by combustion of the coke oven gas sequentially passes through the vent hole 431 and the ferric oxide material, and directly heats the ferric oxide material, so that the heating rate of the ferric oxide material is increased. The material blocking part 43 enables the lower part of the material conveying vehicle 4 to be of a hollow structure, so that space is provided for combustion of coke oven gas, and the heating rate of iron oxide materials is increased; the time required for the heating process of the iron oxide is shortened. Keep off material 43 and set up in the rectangular box, occupied a part space of rectangular box, improved the height of piling up of iron oxide material, reduced the accumulational thickness of iron oxide material for the iron oxide material is heated more evenly, has improved the programming rate of iron oxide material.
In this embodiment, a channel for containing the material is reserved between the material blocking member 43 and the side plate 42.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 6 together, the material blocking member 43 includes an inverted V-shaped plate, two ends of the inverted V-shaped plate are respectively connected with the bottom plate 41, and a plurality of vent holes 431 are disposed on the inverted V-shaped plate. The inverted V-shaped plate is simple in structure and is connected with the bottom plate 41 to form a triangular structure, the stability of the material blocking piece 43 is improved, the service life of the material blocking piece 43 is prolonged, and the material blocking piece 43 is prevented from being crushed by iron oxide materials. The plurality of vent holes 431 are arranged, so that waste hot gas generated by the combustion of coke oven gas can be conveniently diffused to gaps among the ferric oxide materials, and the ferric oxide materials can be heated.
In the present embodiment, the inverted V-shaped plate includes a first inclined plate and a second inclined plate, the first inclined plate is obliquely fixed on the bottom plate 41; the first inclined plate is provided with a plurality of vent holes 431; the second inclined plate is obliquely arranged on the bottom plate 41, and the side edge of the second inclined plate is connected with the side edge of the first inclined plate to form an inverted V-shaped plate; the second inclined plate is provided with a plurality of vent holes 431. The length of the first inclined plate and the second inclined plate is equal to or less than the length of the bottom plate 41.
In this embodiment, the material blocking member 43 also includes a plurality of vent pipes arranged at intervals, the side wall of each vent pipe is provided with a plurality of vent holes 431, the vent pipes are arranged on the bottom plate 41, one end of each vent pipe penetrates through the bottom plate 41 and is communicated with the bottom space of the reaction chamber 2, and the other end of each vent pipe is arranged in the rectangular box body and is communicated with the rectangular box body. Coke oven gas or air enters the draft tube from the bottom of the reaction chamber 2 and is combusted in the draft tube. The ventilation pipe also forms a hollow space in the rectangular box body formed by the bottom plate 41 and the side plate 42, which is beneficial to the dispersion of the ferric oxide material and effectively improves the working efficiency of heating the ferric oxide material.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2 to 8, a plurality of feed openings 411 are disposed on the bottom plate 41; a plurality of support plates 412 are rotatably connected to the bottom plate 41, the support plates 412 correspond to the feed openings 411 one by one and are used for covering the feed openings 411, and the traveling wheels 44 are respectively arranged on the support plates 412. After the iron oxide materials in the material transporting vehicle 4 are reduced, the furnace door 21 on one side of the reaction chamber 2 is opened, the material transporting vehicle 4 is pushed out of the reaction chamber 2, when the material transporting vehicle moves to the position of the storage tank, the lower part of the supporting plate 412 arranged at the bottom of the material transporting vehicle 4 is in a suspended state, the supporting plates 412 are opened in sequence, reaction products in the material transporting vehicle 4 fall down from the material outlet 411 respectively, and when the material transporting vehicle 4 returns to the reaction chamber 2, the supporting plates 412 are closed in sequence. The arrangement of the pallet 412 facilitates the loading and unloading of the materials in the material cart 4. The running wheels 44 are arranged on the supporting plate 412, when the supporting plate 412 is closed, the plurality of running wheels 44 support the whole material conveying vehicle 4, and when the supporting plate 412 is opened, the running wheels 44 can play a role of a heavy hammer to avoid the blocking of the supporting plate 412.
In this embodiment, each supporting plate 412 is provided with a clamping plate 413; the lower plate surface of the bottom plate 41 is provided with a plurality of clamping grooves 414, and each clamping groove 414 is used for being clamped with the clamping plate 413. The engagement of the engaging slot 414 and the engaging plate 413 improves the stability of the structure of the supporting plate 412 on the bottom plate 41.
As an embodiment of the present invention, referring to fig. 1 to 8, each side plate 42 is provided with a plurality of through holes 421 penetrating the side plate 42 in the thickness direction. The side plates 42 are of a hollow structure, so that hot waste gas generated by combustion of coke oven gas can pass through the iron oxide material, the temperature of the iron oxide material can be rapidly increased, and in addition, when the iron oxide material is subjected to reduction reaction, pressure generated by expansion of the iron oxide material can be transmitted to the side wall of the reaction chamber 2 through the through holes 421, and the deformation of the material transporting vehicle 4 is reduced.
In this embodiment, the bottom plate 41 and the supporting plate 412 are not provided with a hollow-out structure, so that dust fall is reduced, and the air supply pipeline 5 is prevented from being blocked.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 1, the gas supply pipeline 5 includes a first gas supply pipe 51 and a second gas supply pipe 52, the first gas supply pipe 51 is disposed below the plurality of reaction chambers 2, one end of the first gas supply pipe is sealed, the other end of the first gas supply pipe is communicated with a first gas supply source, the first gas supply pipe 51 is provided with a plurality of first branch pipes 511, and each of the first branch pipes 511 respectively passes through the bottom of the reaction chamber 2 and is communicated with each of the reaction chambers 2; the second gas supply pipe 52 is disposed below the plurality of reaction chambers 2, is disposed adjacent to the first gas supply pipe 51, has one end sealed, and has the other end communicated with a second gas supply source, the second gas supply pipe 52 is provided with a plurality of second branch pipes 521, and each of the second branch pipes 521 passes through the bottom of the reaction chamber 2 and is communicated with each of the reaction chambers 2. The first air supply pipe 51 and the second air supply pipe 52 are respectively communicated with an air supply source of coke oven gas and an air supply source of air, so that the adjustment of the air supply type of the air supply pipeline 5 by operators is facilitated.
It should be noted that nozzles are provided at one ends of the first branch pipe 511 and the second branch pipe 521 inserted into the reaction chamber 2, and control valves are provided on the first branch pipe 511 and the second branch pipe 521, respectively. A plurality of first branch pipes 511 and second branch pipes 521 are respectively arranged in one reaction chamber 2, which is beneficial to the uniform distribution of coke oven gas and air in the reaction chamber 2.
As a specific implementation manner of the embodiment of the invention, a driving member for driving the material transporting vehicle 4 to move is respectively arranged outside each reaction chamber 2; and each material conveying vehicle 4 is provided with a connecting piece for connecting with the pushing piece.
The driving part is one or more of an air cylinder, a push rod and an oil cylinder, and the driving function can be realized.
The connecting piece is one or more of a bolt structure, a shaft pin structure and a hinge structure, and can be detachably connected with the driving piece.
As a specific implementation manner of the embodiment of the present invention, the apparatus for reducing iron oxide further includes a plurality of hoppers for feeding materials into the material transporting vehicle 4, and each hopper is disposed outside each reaction chamber 2. When the furnace door 21 is opened, the material transporting vehicle 4 is pushed out of the reaction chamber 2, after the discharging operation is completed, the material transporting vehicle 4 makes a return motion under the driving of the driving piece, and in the return moving process of the material transporting vehicle 4, a hopper arranged outside the reaction chamber 2 is opened and iron oxide materials are loaded into the material transporting vehicle 4.
In this embodiment, there is only one hopper, and when there is one hopper, the hopper is arranged on the vehicle which is externally responsible for opening and closing the oven doors 21, and the hopper is aligned with the material transporting vehicle 4 before moving to each opened oven door 21 along with the vehicle to load materials. After loading, the door 21 is closed and the hopper is filled to the designated place.
As an embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 4, the material blocking member 43 is connected to each side plate 42 by the reinforcing rib 6. The reinforcing rib 6 can improve the firmness of the material blocking part 43, and the material blocking part 43 is prevented from being damaged by iron oxide materials in the using process.
As a specific implementation manner of the embodiment of the present invention, the material transporting vehicle 4 includes four side plates 42, the four side plates 42 enclose a rectangular box body with two open ends, the material blocking member 43 is disposed in the rectangular box body, and the material blocking member 43 is connected to each side plate 42 by means of a plurality of reinforcing ribs 6. One end of the reinforcing rib 6 is connected with the material blocking part 43, the other end of the reinforcing rib is connected with the side plate 42 of the rectangular box body in the city and is level with the bottom end of the rectangular box body, each reinforcing rib 6 is arranged along the length direction of the side plate 42 at intervals, the bottom ends of the two reinforcing ribs 6 which are oppositely arranged are rotatably connected with a supporting plate 412 through a rotating shaft structure, and the lower plate surface of the supporting plate 412 is connected with a walking wheel 44.
It should be noted that the distance between adjacent reinforcing ribs 6 is greater than or equal to the length of the support plate 412, and the distance between adjacent reinforcing ribs 6 should be less than the sum of the length of the support plate 412 and the diameter of the iron oxide material.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An apparatus for reducing iron oxide, comprising:
a plurality of reaction chambers are arranged at intervals along the same direction, and the front side and the rear side of each reaction chamber are respectively provided with a furnace door;
a plurality of combustion chambers, wherein each combustion chamber is arranged between the adjacent reaction chambers; each combustion chamber at least comprises two heat conducting walls; each combustion chamber heats the reaction chamber adjacent to the combustion chamber by means of the heat conducting wall;
a plurality of material transporting vehicles are arranged in each reaction chamber respectively, and each material transporting vehicle is used for carrying ferric oxide materials and reducing products; and
and the gas supply pipeline is arranged below the reaction chambers, is respectively communicated with the reaction chambers through pipelines and is used for supplying coke oven gas or/and air into the reaction chambers.
2. The apparatus for reducing iron oxide of claim 1, wherein the skip comprises:
the bottom plate is provided with a plurality of walking wheels;
the four side plates are respectively arranged on the bottom plate and are used for forming a box body with an opening at the top end together with the bottom plate; and
the material blocking part is arranged in the box body, is fixedly connected with the bottom plate, is used for separating the ferric oxide material and forms a hollow structure at the lower part of the box body; the material blocking piece is provided with a plurality of vent holes.
3. The apparatus according to claim 2, wherein the material retaining member comprises an inverted V-shaped plate, both ends of the inverted V-shaped plate are respectively connected with the bottom plate, and a plurality of vent holes are formed in the inverted V-shaped plate.
4. The apparatus for reducing iron oxide according to claim 2, wherein the base plate is provided with a plurality of feed openings; the bottom plate is rotatably connected with a plurality of supporting plates, and the supporting plates correspond to the feed openings one by one and are used for covering the feed openings; the walking wheels are respectively arranged on the supporting plates.
5. The apparatus for reducing iron oxide according to claim 4, wherein each of the supporting plates is provided with a chucking plate;
the lower plate surface of the bottom plate is provided with a plurality of clamping grooves, and each clamping groove is used for being clamped with the clamping plate.
6. An apparatus for reducing iron oxide as defined in claim 2, wherein: each side plate is provided with a plurality of through holes which penetrate through the side plate along the thickness direction.
7. An apparatus for reducing iron oxide according to claim 1, wherein: the gas supply line includes:
the first air supply pipe is arranged below the reaction chambers, one end of the first air supply pipe is sealed, the other end of the first air supply pipe is communicated with a first air supply source, a plurality of first branch pipes are arranged on the first air supply pipe, and the first branch pipes penetrate through the bottoms of the reaction chambers respectively and are communicated with the reaction chambers; and
the second air supply pipe is arranged below the reaction chambers and is arranged in parallel with the first air supply pipe, one end of the second air supply pipe is sealed, the other end of the second air supply pipe is communicated with a second air supply source, a plurality of second branch pipes are arranged on the second air supply pipe, and the second branch pipes penetrate through the bottoms of the reaction chambers and the reaction chambers respectively.
8. An apparatus for reducing iron oxide according to claim 1, wherein: driving pieces for driving the material conveying vehicle to move are arranged outside each reaction chamber;
and each material conveying vehicle is provided with a connecting piece used for being connected with the driving piece.
9. An apparatus for reducing iron oxide as defined in claim 2, wherein: the material blocking part is connected with each side plate through reinforcing ribs.
10. An apparatus for reducing iron oxide according to claim 1, wherein: the device for reducing the iron oxide further comprises a plurality of hoppers for feeding materials into the material conveying vehicle respectively, and the hoppers are arranged outside the reaction chambers respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911155284.0A CN110669892A (en) | 2019-11-22 | 2019-11-22 | Device for reducing iron oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911155284.0A CN110669892A (en) | 2019-11-22 | 2019-11-22 | Device for reducing iron oxide |
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| CN110669892A true CN110669892A (en) | 2020-01-10 |
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| CN201911155284.0A Pending CN110669892A (en) | 2019-11-22 | 2019-11-22 | Device for reducing iron oxide |
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| CN105441620A (en) * | 2016-01-05 | 2016-03-30 | 李建涛 | Coal-based direct reduction furnace and reduction method |
| CN210765377U (en) * | 2019-11-22 | 2020-06-16 | 刘建华 | Device for reducing iron oxide |
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| CN203048972U (en) * | 2012-12-17 | 2013-07-10 | 辽宁博联特冶金科技有限公司 | Wide-end-surface reduction furnace equipment for direct iron reduction |
| CN103834759A (en) * | 2013-12-19 | 2014-06-04 | 辽宁博联特冶金科技有限公司 | Cycling heated iron-reducing kiln, and method for reducing iron |
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