CN211291013U - Sintering machine with micro-negative pressure adjusting device - Google Patents
Sintering machine with micro-negative pressure adjusting device Download PDFInfo
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- CN211291013U CN211291013U CN201921941848.9U CN201921941848U CN211291013U CN 211291013 U CN211291013 U CN 211291013U CN 201921941848 U CN201921941848 U CN 201921941848U CN 211291013 U CN211291013 U CN 211291013U
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Abstract
The utility model provides a sintering machine with little negative pressure adjusting device, including the platform truck, be located the ignition furnace of platform truck top, be located ignition bellows and convulsions bellows, the convulsions house steward of platform truck below, its characterized in that, ignition bellows is located be provided with the convulsions wind channel between ignition bellows and the convulsions bellows under the ignition furnace, be provided with the rotatable air door that is used for adjusting convulsions wind channel aperture in the convulsions wind channel, the tuber pipe of convulsions bellows is connected the convulsions house steward. The effective adjustment of sintering ignition negative pressure is guaranteed, the phenomenon that the ignition effect of a sintering exhaust fan is influenced due to new air leakage caused by abrasion of an adjusting device in the using process is avoided, the material blocking condition cannot be generated, the service life is long, and the maintenance is simple and convenient.
Description
Technical Field
The utility model relates to a sintering machine, concretely relates to sintering machine with little negative pressure adjusting device.
Background
Ignition is one of the main processes of the iron ore sintering production process, in order to enable fuel in the mixture to be combusted and surface layer sintering materials to be bonded into blocks, the ignition of the sintering materials needs to meet certain ignition temperature, ignition intensity and ignition time, and the ignition is required to be uniform along the direction of a trolley. Therefore, the ignition operation is also the basis of the sintering process, and the quality of ignition directly affects whether the sintering process can be smoothly performed, and also affects the strength of the surface layer sintering ore. High quality ignition operation requires uniform surface ignition of the sinter mix and the flue gas produced by the ignition fuel is discharged smoothly through the ignition bellows to the main duct of the sintering machine.
The ignition negative pressure, the ignition time and the ignition temperature are three elements of the sintering ignition process, wherein the ignition negative pressure directly determines the ignition consumption level of the sintering ore. The ignition negative pressure is too high, so that higher negative pressure is formed in the hearth of the igniter, a large amount of cold air enters, the ignition temperature is reduced, the surface of the material layer is enabled to be under-melted, the quality of the sinter on the surface layer is influenced, the strength of the sinter is reduced, and a large amount of return fines are generated. Meanwhile, the excessive ignition heat is pumped into a main pipe of the sintering machine, so that the ignition temperature can be ensured to be proper, the consumption of ignition fuel can be increased only to meet the requirement of maintaining the ignition temperature, and the ignition consumption of the sintering ore is increased. If the ignition negative pressure is too low, the hearth of the igniter can generate positive pressure, heat is overflowed, the surface of a sintering material is overflowed to form a hard shell, air passing is affected, the air permeability of the material layer is reduced, the vertical sintering speed of the material layer is reduced, and the operation safety of the igniter and surrounding equipment is affected.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a sintering machine with little negative pressure adjusting device, this sintering machine can guarantee the effective adjustment of sintering ignition negative pressure to avoid adjusting device wearing and tearing and produce new hourglass wind and influence sintering air exhauster ignition effect in the use.
The technical scheme is as follows: a sintering machine with little negative pressure adjusting device, including the platform truck, be located the ignition furnace of platform truck top, be located ignition bellows and convulsions bellows, the convulsions house steward of platform truck below, its characterized in that, ignition bellows is located be provided with the convulsions wind channel between ignition bellows and the convulsions bellows under the ignition furnace, be provided with the rotatable air door that is used for adjusting convulsions wind channel aperture in the convulsions wind channel, the tuber pipe of convulsions bellows is connected the convulsions house steward.
The air draft air channel is a rectangular air channel which is arranged at the upper ends of the ignition air box and the air draft air box.
The length that convulsions wind channel is in ignition bellows with extend between the convulsions bellows is 1/3 of ignition bellows length, and the width that the convulsions wind channel extends at platform truck width direction is unanimous with the width of convulsions bellows.
The sintering machine is further provided with a driving connecting rod and a motor, wherein the air door is connected with the driving connecting rod and drives the air door to rotate to adjust the opening degree of the air draft air channel.
A dust-settling pipe is arranged below the ignition air box, and a double-layer dust discharging valve is arranged on the dust-settling pipe. The dust falling pipe is controlled by the dust discharging valve to discharge dust to the bulk material collecting belt of the sintering machine, so that the situation of material blockage can not be generated.
Has the advantages that: this sintering machine can adjust the convulsions wind channel of aperture through setting up between two bellows, through convulsions bellows and convulsions wind channel convulsions, makes to produce adjustable negative pressure in the ignition bellows, guarantees the effective adjustment of sintering ignition negative pressure to avoid adjusting device wearing and tearing in the use and produce new hourglass and influence sintering air exhauster ignition effect. The service life is long, and the maintenance is simple and convenient.
Drawings
FIG. 1 is a perspective schematic view of the sintering machine of the present invention;
fig. 2 is a schematic perspective view of the sintering machine of fig. 1 along direction a.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only, and is for the purpose of illustration only, such as "inner", "outer", "left", "right", and the like, and is not intended to be limiting of the invention.
As shown in fig. 1 and 2, a sintering machine with a micro negative pressure adjusting device includes a pallet 1, an ignition furnace 2 located above the pallet 1, an ignition bellows 3 and an exhaust bellows 4 located below the pallet 1, and an exhaust main 5 of the sintering machine.
The ventilation air channel 6 is internally provided with a rotatable air door 7 for adjusting the opening degree of the ventilation air channel 6, and the outside of the ventilation air channel 6 is also provided with a driving connecting rod 9 and a motor 10. The air door 7 is externally connected with the driving connecting rod 9, and the motor 10 drives the air door 7 to rotate within the range of 0-90 degrees, so that the opening degree of the air draft duct 6 is adjusted.
The air pipe 8 of the air draft air box 4 is connected with the air draft main pipe 5, so that the air draft of the air draft main pipe 5 in the air draft air box 4 can be adjusted through the angle of the air adjusting door 7, and the negative pressure of the ignition air box 3 is adjusted.
A dust falling pipe 11 is arranged below the ignition air box 3, a double-layer ash discharging valve 12 is arranged on the dust falling pipe 11, ash is discharged to a bulk material collecting belt of the sintering machine through the control of the double-layer ash discharging valve 12, and the situation of material blockage is avoided.
Claims (5)
1. The utility model provides a sintering machine with little negative pressure adjusting device, includes platform truck (1), is located ignition furnace (2) of platform truck (1) top, is located ignition bellows (3) and convulsions bellows (4), the master draft (5) of platform truck (1) below, its characterized in that, ignition bellows (3) are located be provided with convulsions wind channel (6) between ignition bellows (3) and convulsions bellows (4) under ignition furnace (2), be provided with rotatable air door (7) that are used for adjusting convulsions wind channel (6) aperture in convulsions wind channel (6), tuber pipe (8) of convulsions bellows (4) are connected master draft (5).
2. The sintering machine with micro negative pressure regulating device according to claim 1, characterized in that the air draft duct (6) is a rectangular duct disposed at the upper end of the ignition bellows (3) and the air draft bellows (4).
3. The sintering machine with micro negative pressure regulating device according to claim 2, characterized in that the length of the air draft air duct (6) extending between the ignition bellows (3) and the air draft bellows (4) is 1/3 of the length of the ignition bellows (3), and the width of the air draft air duct (6) extending in the width direction of the trolley (1) is consistent with the width of the air draft air bellows (4).
4. The sintering machine with the micro-negative pressure adjusting device according to claim 1, wherein a driving connecting rod (9) and a motor (10) are further provided, the air door (7) is connected with the driving connecting rod (9), and the opening of the air draft air duct (6) is adjusted by driving the air door (7) to rotate through the motor (10).
5. The sintering machine with micro negative pressure regulating device according to claim 1, characterized in that a dust fall pipe (11) is arranged below the ignition wind box (3), and a double-layer dust discharge valve (12) is arranged on the dust fall pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921941848.9U CN211291013U (en) | 2019-11-12 | 2019-11-12 | Sintering machine with micro-negative pressure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921941848.9U CN211291013U (en) | 2019-11-12 | 2019-11-12 | Sintering machine with micro-negative pressure adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291013U true CN211291013U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921941848.9U Active CN211291013U (en) | 2019-11-12 | 2019-11-12 | Sintering machine with micro-negative pressure adjusting device |
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| CN (1) | CN211291013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539660A (en) * | 2020-12-01 | 2021-03-23 | 马鞍山钢铁股份有限公司 | Online micro-positive pressure heat preservation method and system for sintering ignition furnace |
-
2019
- 2019-11-12 CN CN201921941848.9U patent/CN211291013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539660A (en) * | 2020-12-01 | 2021-03-23 | 马鞍山钢铁股份有限公司 | Online micro-positive pressure heat preservation method and system for sintering ignition furnace |
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