CN212894892U - Roasting device for treating steelmaking raw materials - Google Patents
Roasting device for treating steelmaking raw materials Download PDFInfo
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- CN212894892U CN212894892U CN202021785427.4U CN202021785427U CN212894892U CN 212894892 U CN212894892 U CN 212894892U CN 202021785427 U CN202021785427 U CN 202021785427U CN 212894892 U CN212894892 U CN 212894892U
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Abstract
The utility model relates to a steelmaking equipment technical field provides a roasting device for steelmaking raw material processing, aims at solving the furnace charge center and the marginal air current of traditional roasting shaft furnace uneven, and the difference in temperature is big, causes the energy consumption high on the one hand, and output and quality are unstable, and on the other hand the free water that adulterates in the steelmaking raw material pelletizing can further prolong the calcination time, causes the problem that calcination efficiency is low, including hollow structure's base and the roasting shaft furnace of installing in the base upper end, it has been installed into hopper and blast pipe to link up on the roof of roasting shaft furnace, and is equipped with predrying mechanism and calcination mechanism in proper order from top to bottom in the inner chamber of roasting shaft furnace; the roasting mechanism comprises an electric heating plate arranged on the side wall of the lower part of the inner cavity of the roasting shaft furnace and a main shaft which is rotatably inserted in the middle of the bottom wall of the roasting shaft furnace. The utility model is particularly suitable for roasting the steel-making raw material pellets, and has higher social use value and application prospect.
Description
Technical Field
The utility model relates to a steelmaking equipment technical field, concretely relates to a roasting device for steelmaking raw material treatment.
Background
In the process of steelmaking, when molten iron is heated and smelted, because molten iron and some low-melting-point metal impurities are gasified and evaporated due to high temperature and the molten iron is boiled and cracked, a large amount of fine metal droplets are splashed and enter a gas phase, solid suspended matters are formed after cooling, dust carried in bulk in furnace materials also enters the gas phase along with flue gas, and the sum of the suspended matters is steelmaking dust. During the collection process of the steelmaking dust, steelmaking dust mud is formed.
A large amount of metal compounds exist in the steel-making dust and sludge, cannot be naturally discharged and needs to be recycled. In the prior art, the dust and mud for steel making is used as a cosolvent and a slagging agent for converter steel making through a cold-bonded pelletizing process, and can be recycled to the greatest extent. The steel-making dust-mud pellets are low in added binder amount, the iron-containing grade of the product is high, the strength is high, the water content is low, and the iron-containing pellet can replace imported iron ores; saving resources, being beneficial to environmental protection and realizing zero emission of the steelmaking dust and mud.
The existing steelmaking raw material pellets need to be roasted after being formed, however, the air flow of the center and the edge of the charging material of the traditional roasting shaft furnace is not uniform, the temperature difference is large, on one hand, the energy consumption is high, the yield and the quality are unstable, on the other hand, the roasting time can be further prolonged by free water doped in the steelmaking raw material pellets, and the roasting efficiency is low.
To this end, we propose a roasting apparatus for the treatment of steelmaking raw materials.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a roasting device for steelmaking raw materials handles has overcome the not enough of prior art, reasonable in design, and compact structure aims at solving traditional roasting shaft furnace's furnace charge center and marginal air current inequality, and the difference in temperature is big, causes the energy consumption high on the one hand, and output and quality are all unstable, and the free water of on the other hand adulteration in the steelmaking raw materials pelletizing can further prolong calcination time, causes the problem that calcination efficiency is low.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a roasting device for treating steelmaking raw materials comprises a base with a hollow structure and a roasting shaft furnace arranged at the upper end of the base, wherein a feed hopper and an exhaust pipe are arranged on the top wall of the roasting shaft furnace in a run-through manner, and a pre-drying mechanism and a roasting mechanism are sequentially arranged in an inner cavity of the roasting shaft furnace from top to bottom;
the roasting mechanism comprises an electric heating plate arranged on the side wall of the lower part of the inner cavity of the roasting shaft furnace and a main shaft which is rotatably inserted in the middle of the bottom wall of the roasting shaft furnace, the lower end of the main shaft extends to the inner cavity of the base and is arranged at the output end of a driving motor, the driving motor is fixedly arranged on the inner wall of the base, and a section of the main shaft positioned at the lower part of the inner cavity of the roasting shaft furnace is fixedly sleeved with a spiral mixing barrel;
fixed cover on one section that the main shaft is located the base inner chamber is equipped with bevel gear I, bevel gear I meshes there is bevel gear II, and bevel gear II goes up coaxial arrangement has drive sprocket I, drive sprocket I is connected with driven sprocket I that two symmetries set up through chain I, and drive sprocket I and two driven sprocket I all rotate and install on the back wall of base, coaxial arrangement has drive sprocket on the driven sprocket I, and drive sprocket has a plurality of vertical distribution's driven sprocket II through II transmissions of chain, the axis of rotation is installed to the front shaft end of driven sprocket II, and the front end of axis of rotation extends to the inner chamber of calcination shaft furnace and level and installs on the inner wall of calcination shaft furnace to rotating, the axis of rotation cover is equipped with a plurality of stirring impeller.
Preferably, the pre-drying mechanism comprises a drying disc horizontally arranged at the upper part of the inner cavity of the roasting shaft furnace, an electric heating assembly is embedded in the drying disc, a plurality of paving plates are rotatably arranged on the upper surface of the drying disc, and the paving plates are arranged on the side wall of the upper end of the main shaft through a rotating arm;
a plurality of bin outlets have been seted up on the stoving dish, and the bin outlet interpolation is equipped with the shutoff piece, and shutoff piece fixed mounting is in the upper end of porous sealing dish, porous sealing dish slidable mounting is on the inner wall of roasting shaft furnace, and the bilateral symmetry screw thread of porous sealing dish inserts and is equipped with the lead screw, and the upper end of lead screw runs through the roof of stoving dish and roasting shaft furnace in proper order and installs driving pulley, two driving pulley are connected through the belt, one of them belt is installed on servo motor's output, and servo motor passes through support fixed mounting on the roof of roasting shaft furnace.
Preferably, the drying disc and the porous sealing disc are both inverted-table-shaped structures, and the edges of the drying disc and the porous sealing disc are provided with flat installation parts extending horizontally outwards.
Preferably, the lower end of the screw rod is rotatably sleeved with a limiting seat, and the limiting seat is fixedly installed on the inner wall of the roasting shaft furnace.
Preferably, the outer side cover of bevel gear I and bevel gear II is equipped with the protective housing, and protective housing fixed mounting is on the interior diapire of base.
Preferably, install control panel on the antetheca of base, and be equipped with display screen and control button on the control panel, control panel embeds there is the PLC controller.
(III) advantageous effects
The embodiment of the utility model provides a roasting device for steelmaking raw materials handles possesses following beneficial effect:
1. through the integrated configuration of roasting shaft furnace and stoving mechanism in advance, electric heating assembly starts, and to dropping in advance to the roasting shaft furnace steelmaking raw material pelletizing on the stoving dish carry out the stoving in advance, and the even stoving of steelmaking raw material pelletizing is spread in the rotation of main shaft and the connection of spiral arm through the rotation of main shaft to the start-up of cooperation driving motor, drives the rotation of spreading board, guarantees the efficiency of follow-up baking.
2. Through the integrated configuration of spiral compounding section of thick bamboo and a plurality of stirring impeller that turns over, the electric plate circular telegram produces the heat, heats and cures steelmaking raw material pelletizing, and driving motor starts simultaneously, drives spiral compounding section of thick bamboo and a plurality of stirring impeller that turns over and has realized the stirring of upper and lower direction and horizontal direction respectively, and the even heating of turning of steelmaking raw material pelletizing cures, has improved when guaranteeing to cure the quality and cures efficiency.
3. Through the integrated configuration of stoving mechanism and calcination mechanism in advance, stoving mechanism is to the even stoving of steelmaking raw material pelletizing, inputs calcination mechanism afterwards, and steelmaking raw material pelletizing is stirred the thermally equivalent and is baked in calcination mechanism, and the influence of free water is held between fingers to effectual reduction steelmaking raw material pelletizing, improves and cures efficiency.
Drawings
The above characteristics, technical features, advantages and realisations of a roasting device for the treatment of steelmaking raw materials will be further described in a clearly understandable manner, with reference to the accompanying drawings, which illustrate preferred embodiments.
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a rear view structural diagram of the present invention;
fig. 4 is a top view of the combined structure of the middle drying disc and the blocking block of the present invention.
In the figure: the device comprises a base 1, a roasting shaft furnace 2, a feeding hopper 3, an exhaust pipe 4, a pre-drying mechanism 5, a drying disc 51, an electric heating assembly 52, a blocking block 53, a porous blocking disc 54, a spreading plate 55, a rotary arm 56, a screw rod 57, a limiting seat 58, a transmission belt wheel 59, a belt 510, a servo motor 511, a control panel 6, a roasting mechanism 7, a main shaft 71, a spiral mixing cylinder 72, a protective box 73, a driving motor 74, a bevel gear I75, a bevel gear II 76, a driving chain wheel I77, a driven chain wheel I78, a driving chain wheel 79, a driven chain wheel II 710, a rotating shaft 711, a stirring impeller 712 and an electric heating plate 713.
Detailed Description
The invention will be further described with reference to the following figures 1-4 and examples:
example 1
A roasting device for treating steelmaking raw materials comprises a base 1 with a hollow structure and a roasting shaft furnace 2 arranged at the upper end of the base 1, wherein a feed hopper 3 and an exhaust pipe 4 are arranged on the top wall of the roasting shaft furnace 2 in a run-through manner, the feed hopper 3 is used for feeding steelmaking raw material pellets, the exhaust pipe 4 is used for discharging water vapor generated by drying and baking, and a pre-drying mechanism 5 and a roasting mechanism 7 are sequentially arranged in the inner cavity of the roasting shaft furnace 2 from top to bottom;
in this embodiment, as shown in fig. 2-4, the roasting mechanism 7 includes an electric heating plate 713 disposed on the lower side wall of the inner cavity of the roasting shaft furnace 2 and a main shaft 71 rotatably inserted in the middle of the bottom wall of the roasting shaft furnace 2, and the lower end of the main shaft 71 extends to the inner cavity of the base 1 and is mounted on the output end of the driving motor 74, and the driving motor 74 is fixedly mounted on the inner wall of the base 1, and a spiral mixing barrel 72 is fixedly sleeved on a section of the main shaft 71 located at the lower part of the inner cavity of the roasting shaft furnace 2;
a section of the main shaft 71, which is located in the inner cavity of the base 1, is fixedly sleeved with a bevel gear I75, the bevel gear I75 is meshed with a bevel gear II 76, a driving sprocket I77 is coaxially installed on the bevel gear II 76, the driving sprocket I77 is connected with two driven sprockets I78 which are symmetrically arranged through a chain I, the driving sprocket I77 and the two driven sprockets I78 are both rotatably installed on the rear wall of the base 1, a driving sprocket 79 is coaxially installed on the driven sprocket I78, the driving sprocket 79 is connected with a plurality of vertically distributed driven sprockets II 710 through a chain II in a transmission manner, a rotating shaft 711 is installed at the front shaft end of the driven sprocket II 710, the front end of the rotating shaft 711 extends to the inner cavity of the roasting shaft 2 and is horizontally rotatably installed on the inner wall of the roasting shaft 2, and a plurality of stirring;
in the embodiment, the steel-making raw material pellets enter the roasting shaft furnace 2 through the feeding hopper 3, the electric heating plate 713 is electrified to generate heat to heat and bake the steel-making raw material pellets, and meanwhile, the driving motor 74 is started to drive the spiral mixing barrel 72 to rotate, so that the steel-making raw material pellets are uniformly turned over, and the steel-making raw material pellets are uniformly heated and baked; combine the meshing mechanism of bevel gear I75 and bevel gear II 76, drive sprocket I77 and rotate, cooperation drive sprocket I77, driven sprocket I78, two sets of sprocket chain drive mechanisms of drive sprocket 79 and driven sprocket II 710, a plurality of axis of rotation 711 synchronous rotations have been realized, the stirring of direction about a plurality of stirring impellers 712 that set up on the cooperation axis of rotation 711 have realized, guarantee the stirring thermally equivalent of steelmaking raw materials pelletizing and bake, the efficiency of baking has been improved when guaranteeing to bake the quality.
In this embodiment, as shown in fig. 1 to 3, the pre-drying mechanism 5 includes a drying tray 51 horizontally installed on the upper portion of the inner cavity of the roasting shaft furnace 2, and an electric heating assembly 52 is embedded in the drying tray 51, in this embodiment, the electric heating assembly 52 may be an electric heating plate, a resistance rod set, or an electric heating wire set, the upper surface of the drying tray 51 is rotatably installed with a plurality of paving plates 55, and the paving plates 55 are installed on the upper end side wall of the main shaft 71 through a swing arm;
a plurality of discharge openings are formed in the drying disc 51, plugging blocks 53 are inserted into the discharge openings, the plugging blocks 53 are fixedly installed at the upper end of a porous sealing disc 54, the porous sealing disc 54 is slidably installed on the inner wall of the roasting shaft furnace 2, screw rods 57 are symmetrically inserted into two sides of the porous sealing disc 54, the upper ends of the screw rods 57 sequentially penetrate through the drying disc 51 and the top wall of the roasting shaft furnace 2 and are provided with driving belt wheels 59, the two driving belt wheels 59 are connected through a belt 510, one belt 510 is installed at the output end of a servo motor 511, and the servo motor 511 is fixedly installed on the top wall of the roasting shaft furnace 2 through a support;
in the embodiment, the steelmaking raw material pellets enter the roasting shaft furnace 2 through the feeding hopper 3, fall onto the drying disc 51 in advance, the electric heating assembly 52 is started to pre-dry the steelmaking raw material pellets in advance, free water in the steelmaking raw material pellets is removed, the spread plate 55 is driven to rotate and spread the steelmaking raw material pellets by the rotation of the main shaft 71 and the connection of the swing arm 56 in cooperation with the starting of the driving motor 74, uniform pre-drying is realized on the steelmaking raw material pellets first, and the subsequent baking efficiency is ensured;
after the pre-drying, the servo motor 511 is started, through the transmission mechanism of the two transmission belt wheels 59 and the belt 510, the two screw rods 57 synchronously rotate to drive the porous sealing disc 54 to move downwards, the sealing block 53 leaves the discharge hole, the steel-making raw material pellets on the drying disc 51 sequentially pass through the discharge hole and a plurality of through holes on the porous sealing disc 54 and drop to the lower part of the inner cavity of the roasting shaft furnace 2, the continuous baking after the pre-drying is realized, and meanwhile, the water vapor sequentially passes through the plurality of through holes and the discharge hole on the porous sealing disc 54 and is discharged from the exhaust pipe 4 when the baking is carried out.
In this embodiment, as shown in fig. 2, the lower end of the screw 57 is rotatably sleeved with a limiting seat 58, and the limiting seat 58 is fixedly installed on the inner wall of the roasting shaft furnace 2, so that the vertical arrangement of the screw 57 is ensured, and the lifting control of the porous sealing disc 54 is realized.
In this embodiment, as shown in fig. 2, the protective box 73 is sleeved on the outer side of the bevel gear i 75 and the bevel gear ii 76, and the protective box 73 is fixedly installed on the inner bottom wall of the base 1, so that the protection of the bevel gear i 75 and the bevel gear ii 76 is effectively ensured.
In this embodiment, as shown in fig. 1, a control panel 6 is installed on the front wall of the base 1, a display screen and a control button are installed on the control panel 6, and a PLC controller is installed in the control panel 6, in this embodiment, the model of the PLC controller is siemens S7-200, and the control panel 6 is connected to the electric heating assembly 52, the servo motor 511, the driving motor 74, and the electric heating plate 713 through electric control lines;
the processing personnel effectively control the electric heating assembly 52 to start by controlling a control button on the control panel 6 and combining a PLC controller, pre-dries the steelmaking raw material pellets falling onto the drying disc 51 in advance, and drives the spreading plate 55 to rotate and spread the steelmaking raw material pellets for uniform pre-drying by matching with the starting of the driving motor 74 and connecting the rotation of the main shaft 71 and the swing arm 56, so that the subsequent baking efficiency is ensured; the electric heating plates 713 are effectively controlled to be electrified to generate heat, steel-making raw material pellets are heated and baked, meanwhile, the driving motor 74 is started to drive the spiral mixing barrel 72 and the stirring impellers 712 to stir in the vertical direction and the horizontal direction respectively, the steel-making raw material pellets are uniformly heated and baked in a stirring manner, the baking quality is guaranteed, and the baking efficiency is improved.
Example 2
The difference between the embodiment and the embodiment 1 is that, as shown in fig. 2, the drying disk 51 and the porous sealing disk 54 are both inverted-truncated-cone-shaped structures, and the edges of the drying disk 51 and the porous sealing disk 54 are formed with flat mounting portions extending horizontally outward, so that steel-making raw material pellets are effectively gathered to the middle of the drying disk 51, on one hand, the pre-drying efficiency is improved by matching with the electric heating assembly 52, and on the other hand, the pre-dried steel-making raw material pellets are ensured to enter the lower portion of the inner cavity of the roasting shaft furnace 2 for fast baking by matching with the discharge opening.
Other undescribed structures refer to example 1.
The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.
Claims (6)
1. A roasting device for treating steelmaking raw materials comprises a base with a hollow structure and a roasting shaft furnace arranged at the upper end of the base, and is characterized in that a feed hopper and an exhaust pipe are arranged on the top wall of the roasting shaft furnace in a run-through manner, and a pre-drying mechanism and a roasting mechanism are sequentially arranged in an inner cavity of the roasting shaft furnace from top to bottom;
the roasting mechanism comprises an electric heating plate arranged on the side wall of the lower part of the inner cavity of the roasting shaft furnace and a main shaft which is rotatably inserted in the middle of the bottom wall of the roasting shaft furnace, the lower end of the main shaft extends to the inner cavity of the base and is arranged at the output end of a driving motor, the driving motor is fixedly arranged on the inner wall of the base, and a section of the main shaft positioned at the lower part of the inner cavity of the roasting shaft furnace is fixedly sleeved with a spiral mixing barrel;
fixed cover on one section that the main shaft is located the base inner chamber is equipped with bevel gear I, bevel gear I meshes there is bevel gear II, and bevel gear II goes up coaxial arrangement has drive sprocket I, drive sprocket I is connected with driven sprocket I that two symmetries set up through chain I, and drive sprocket I and two driven sprocket I all rotate and install on the back wall of base, coaxial arrangement has drive sprocket on the driven sprocket I, and drive sprocket has a plurality of vertical distribution's driven sprocket II through II transmissions of chain, the axis of rotation is installed to the front shaft end of driven sprocket II, and the front end of axis of rotation extends to the inner chamber of calcination shaft furnace and level and installs on the inner wall of calcination shaft furnace to rotating, the axis of rotation cover is equipped with a plurality of stirring impeller.
2. A roasting apparatus for steelmaking raw material processing as claimed in claim 1, wherein: the pre-drying mechanism comprises a drying disc horizontally arranged at the upper part of the inner cavity of the roasting shaft furnace, an electric heating assembly is embedded in the drying disc, a plurality of paving plates are rotatably arranged on the upper surface of the drying disc, and the paving plates are arranged on the side wall of the upper end of the main shaft through a spiral arm;
a plurality of bin outlets have been seted up on the stoving dish, and the bin outlet interpolation is equipped with the shutoff piece, and shutoff piece fixed mounting is in the upper end of porous sealing dish, porous sealing dish slidable mounting is on the inner wall of roasting shaft furnace, and the bilateral symmetry screw thread of porous sealing dish inserts and is equipped with the lead screw, and the upper end of lead screw runs through the roof of stoving dish and roasting shaft furnace in proper order and installs driving pulley, two driving pulley are connected through the belt, one of them belt is installed on servo motor's output, and servo motor passes through support fixed mounting on the roof of roasting shaft furnace.
3. A roasting apparatus for steelmaking raw material processing as claimed in claim 2, wherein: drying tray and porous sealing disc are the structure of falling the platform shape, and drying tray and porous sealing disc's edge is formed with the gentle installation department that the level outwards extended.
4. A roasting apparatus for steelmaking raw material processing as claimed in claim 2, wherein: the lower end of the screw rod is rotatably sleeved with a limiting seat, and the limiting seat is fixedly installed on the inner wall of the roasting shaft furnace.
5. A roasting apparatus for steelmaking raw material processing as claimed in claim 1, wherein: the outside cover of bevel gear I and bevel gear II is equipped with the protective housing, and protective housing fixed mounting is on the interior diapire of base.
6. A roasting apparatus for steelmaking raw material processing as claimed in claim 1, wherein: install control panel on the antetheca of base, and be equipped with display screen and control button on the control panel, control panel embeds there is the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021785427.4U CN212894892U (en) | 2020-08-24 | 2020-08-24 | Roasting device for treating steelmaking raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021785427.4U CN212894892U (en) | 2020-08-24 | 2020-08-24 | Roasting device for treating steelmaking raw materials |
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| Publication Number | Publication Date |
|---|---|
| CN212894892U true CN212894892U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021785427.4U Active CN212894892U (en) | 2020-08-24 | 2020-08-24 | Roasting device for treating steelmaking raw materials |
Country Status (1)
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|---|---|
| CN (1) | CN212894892U (en) |
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2020
- 2020-08-24 CN CN202021785427.4U patent/CN212894892U/en active Active
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