CN218059134U - Tunnel type mineral powder sintering equipment - Google Patents
Tunnel type mineral powder sintering equipment Download PDFInfo
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- CN218059134U CN218059134U CN202220864192.0U CN202220864192U CN218059134U CN 218059134 U CN218059134 U CN 218059134U CN 202220864192 U CN202220864192 U CN 202220864192U CN 218059134 U CN218059134 U CN 218059134U
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Abstract
The utility model provides a tunnel type powdered ore sintering equipment, its structure includes: the device comprises a tunnel sintering furnace, a transfer sintering vehicle, an internal track, an external track, a material distribution system, a combustion system, an air inlet system and a smoke exhaust system, wherein the internal track is arranged at the bottom of the tunnel sintering furnace, the external track and the internal track are quadrilateral and are arranged to provide a circulating track for the transfer sintering vehicle, a hydraulic pushing device at the right end of the tunnel sintering furnace pushes the transfer sintering vehicle into the tunnel sintering furnace along the internal track, a material distribution device is arranged at a partial section of the top of the tunnel sintering furnace and divides the tunnel sintering furnace into a sintering chamber and a drying chamber, the air inlet system and the smoke exhaust system are respectively connected to the bottoms of the hot air chamber and the sintering chamber through an air inlet pipeline and a smoke exhaust pipeline, the material distribution system distributes mineral powder raw materials in a segmented and layered manner in the transfer sintering vehicle passing through in sequence, and the combustion system arranged at the top of the tunnel sintering furnace carries out sintering on the raw materials in a segmented and layered manner.
Description
Technical Field
The utility model belongs to the technical field of the metallurgical technology and specifically relates to a tunnel type powdered ore sintering equipment.
Background
In the existing blast furnace ironmaking technology, iron ore is crushed and screened to obtain iron-rich ore powder, the iron-rich ore powder is made into sintering burden through pelletizing and sintering, the sintering burden is smelted with coke in a blast furnace to make pig iron, the traditional sintering burden production process is to make concentrate powder into raw material balls through a pelletizer, and then send the raw material balls into a chain sintering furnace for high-temperature calcination, and the chain sintering furnace calcination process has the defects in practical application that: the semi-open sintering has the advantages of large heat loss, large fuel loss, low sintering speed, poor sintering quality, high concentration of carbon monoxide in flue gas, serious environmental pollution, more importantly, the chain grate is easy to damage in the high-temperature sintering process, the use and maintenance cost is increased in the use process, and the production efficiency and the clinker sintering quality are reduced.
Disclosure of Invention
The utility model aims at providing a tunnel type powdered ore sintering equipment.
The utility model aims at realizing according to the following mode:
a tunnel type mineral powder sintering device structurally comprises: the device comprises a tunnel sintering furnace, a transfer sintering vehicle, an internal track, an external track, a material distribution system, a combustion system, an air inlet system and a smoke exhaust system, wherein the internal track is arranged at the bottom of the tunnel sintering furnace, the external track is arranged outside the tunnel sintering furnace and arranged in a quadrilateral mode with the internal track, the material distribution system and the combustion system are arranged at the top of the tunnel sintering furnace, and the air inlet system and the smoke exhaust system are connected with the bottom of the tunnel sintering furnace through an air inlet pipeline and a smoke exhaust pipeline.
A tunnel type powdered ore sintering equipment, tunnel sintering stove be the arch tunnel, the external steel construction in arch tunnel, resistant firebrick is inlayed to the inner wall, be provided with the cloth system in the subsection of the top of tunnel sintering stove, the cloth system comprises belt raw material conveyer, industry control scraper blade and cloth fill of unloading, the segmentation of industry control scraper blade of unloading sets up on belt raw material conveyer, the below and the cloth fill entry of industry control scraper blade of unloading are corresponding, the lower extreme and the tunnel sintering stove inner chamber intercommunication of cloth funnel.
According to the tunnel type mineral powder sintering equipment, the inner space of the tunnel sintering furnace is divided into the sintering chamber and the hot air chamber in sections by taking the distribution funnel as a boundary, and the sintering chamber and the hot air chamber are arranged in sequence from the right end of the tunnel sintering furnace to the left at intervals.
A tunnel type mineral powder sintering equipment, combustion system include gas house steward, gas branch pipe and gas nozzle group, the gas house steward sets up the top at tunnel sintering stove, the gas nozzle group passes through the gas branch pipe to be connected with the gas house steward, the gas nozzle group sets up the connecting portion at sintering chamber and hot-blast room, the solenoid valve is all installed and is connected with the industrial computer through the data line to every gas nozzle of gas nozzle group.
The tunnel type mineral powder sintering equipment is characterized in that the transfer sintering vehicle consists of a transfer vehicle chassis and a U-shaped clinker sintering box, rollers are arranged at the bottom of the transfer vehicle chassis and connected with an internal track and an external track, the U-shaped clinker sintering box is arranged on the upper part of the transfer vehicle chassis, refractory bricks are arranged on the front inner wall and the rear inner wall of the U-shaped clinker sintering box, and the left side and the right side of the U-shaped clinker sintering box are opened and are spliced with the adjacent U-shaped clinker sintering box in the tunnel sintering furnace to form a clinker sintering groove.
A tunnel type powdered ore sintering equipment, external track include external horizontal track and external vertical track, external horizontal track is parallel with the built-in track of tunnel sintering stove, external vertical rail connection is at built-in track and external horizontal orbital both ends, be provided with vertical transport vehicle chassis on the vertical track at external horizontal track both ends, be provided with on the vertical transport vehicle chassis with built-in track and the transition of the U type transportation sintering car of external horizontal rail butt joint and transport the track.
A tunnel type powdered ore sintering equipment, exhaust system is connected to form through the flue by hourglass hopper-shaped exhaust hood, cyclone, sack cleaner, electrostatic precipitator, draught fan and smoke tower, leaks hopper-shaped exhaust hood and connects the bottom at tunnel sintering furnace sintering chamber.
The tunnel type mineral powder sintering equipment is characterized in that an air inlet system is formed by connecting a funnel-shaped air inlet cover and an air blower through an air inlet pipeline, and the funnel-shaped air inlet cover is connected with the bottom of a hot air chamber of a tunnel sintering furnace.
The utility model has the advantages that: the raw materials are distributed, preheated and sintered for a plurality of times in a tunnel sintering furnace in a segmented manner, so that the sintering speed and the sintering quality of the clinker are improved, the sintering temperature is greatly improved, the fuel consumption is reduced, the use and maintenance cost can be greatly reduced, the service life is prolonged, the automation level is improved, and the tunnel sintering furnace has the characteristics of energy conservation, high efficiency, environmental protection and the like.
Drawings
FIG. 1 is a schematic view of a tunnel type mineral powder sintering apparatus;
FIG. 2 is a schematic perspective view of a tunnel sintering furnace of a tunnel type mineral powder sintering apparatus;
fig. 3 is a partial structural schematic view of fig. 1.
Description of reference numerals: the device comprises a hydraulic pushing device 1, a transfer trolley chassis 2, a U-shaped clinker sintering box 3, a belt raw material conveyor 4, a material distribution system 5, a gas spray pipe group 6, a funnel-shaped air inlet cover 7, a funnel-shaped exhaust cover 8, an internal transverse rail 9, an external vertical rail 10, a vertical transfer trolley chassis 11, an air blower 12, an air inlet pipeline 13, an exhaust pipeline 14, a cyclone dust collector 15, a bag-type dust collector 16, an electrostatic dust collector 17, an induced draft fan 18, a sintering chamber 19, a hot air chamber 20, a smoke tower 21, an external transverse rail 22, a tunnel sintering furnace 23, a U-shaped transfer sintering trolley transition transfer rail 24, a gas main pipe 25, a gas branch pipe 26 and an industrial control unloading scraper 27.
Detailed Description
The structural features of the apparatus of the present invention will be described in detail below with reference to the accompanying drawings.
A tunnel type mineral powder sintering device structurally comprises: the device comprises a tunnel sintering furnace 23, a transfer sintering vehicle, an internal track 9, an external track, a material distribution system, a combustion system, an air inlet system and a smoke exhaust system, wherein the internal track 9 is arranged at the bottom of the tunnel sintering furnace 23, the external track is arranged outside the tunnel sintering furnace 23 and arranged in a quadrilateral mode with the internal track 9, the material distribution system and the combustion system are arranged at the top of the tunnel sintering furnace 23, and the air inlet system and the smoke exhaust system are connected with the bottom of the tunnel sintering furnace 23 through an air inlet pipeline 13 and a smoke exhaust pipeline 14.
A tunnel type mineral powder sintering equipment, tunnel fritting furnace 23 is the arch tunnel, the external steel construction in arch tunnel, resistant firebrick is inlayed to the inner wall, be provided with the cloth system in the segmentation of the top of tunnel fritting furnace 23, the cloth system comprises belt raw material conveyer 4, industry control scraper 27 and cloth fill 5, industry control scraper 27 segmentation setting of unloading is on belt raw material conveyer 4, the below and the cloth fill 5 entry of industry control scraper 27 of unloading are corresponding, the lower extreme and the tunnel fritting furnace 23 thorax intercommunication of cloth funnel 5.
In the tunnel type mineral powder sintering equipment, the inner space of the tunnel sintering furnace 23 is divided into a sintering chamber 19 and a hot air chamber 20 in sections by taking the distribution funnel 5 as a boundary, and the sintering chamber 19 and the hot air chamber 20 are arranged in sequence from the right end of the tunnel sintering furnace 23 to the left at intervals.
A tunnel type powdered ore sintering equipment, combustion system include gas house steward 25, gas branch pipe 26 and gas spout nest of tubes 6, gas house steward 25 sets up at the top of tunnel fritting furnace 23, gas spout nest of tubes 6 passes through gas branch pipe 26 to be connected with the gas house steward, gas spout nest of tubes sets up the connecting portion in sintering chamber and hot-blast room, the solenoid valve is all installed and is connected with the industrial computer through the data line to every gas spout of gas spout nest of tubes.
The tunnel type mineral powder sintering equipment is characterized in that a transfer sintering vehicle comprises a transfer vehicle chassis 2 and U-shaped clinker sintering boxes 3, rollers are arranged at the bottom of the transfer vehicle chassis 2 and connected with an internal track and an external track, the U-shaped clinker sintering boxes 3 are arranged at the upper part of the transfer vehicle chassis 2, refractory bricks are arranged on the front inner wall and the rear inner wall of each U-shaped clinker sintering box 3, and the left side and the right side of each U-shaped clinker sintering box 3 are opened and are spliced with the adjacent U-shaped clinker sintering boxes 3 in a tunnel sintering furnace 23 to form a clinker sintering groove.
The tunnel type mineral powder sintering equipment comprises an external transverse rail 22 and an external vertical rail 10, wherein the external transverse rail 22 is parallel to an internal rail 9 of a tunnel sintering furnace 23, the external vertical rail 10 is connected to two ends of the internal rail 9 and the external transverse rail 22, vertical transfer vehicle chassis 11 are arranged on the vertical rails 10 at two ends of the external transverse rail 22, and a U-shaped transfer sintering vehicle transition transfer rail 24 in butt joint with the internal rail 9 and the external transverse rail 22 is arranged on the vertical transfer vehicle chassis 11.
A tunnel type powdered ore sintering equipment, the exhaust system is formed by connecting a funnel-shaped exhaust hood 8, a cyclone separator 15, a bag-type dust collector 16, an electrostatic dust collector 17, an induced draft fan 18 and a smoke tower 21 through a flue 14, and the funnel-shaped exhaust hood 8 is connected to the bottom of a sintering chamber 19 of a tunnel sintering furnace.
The tunnel type mineral powder sintering equipment is characterized in that an air inlet system is formed by connecting a funnel-shaped air inlet cover 7 and an air blower 12 through an air inlet pipeline 13, and the funnel-shaped air inlet cover 7 is connected with the bottom of a hot air chamber 20 of a tunnel sintering furnace.
Example 1
The using method of the tunnel type mineral powder sintering equipment comprises the following steps:
the method comprises the following steps that a transfer sintering vehicle sequentially pushes and sends raw materials to a tunnel sintering furnace through a hydraulic pushing device at the left end of the tunnel sintering furnace to form a clinker sintering groove, a material distribution hopper at the left end of the tunnel sintering furnace firstly obtains raw materials from a belt raw material conveyor and falls into a U-shaped clinker sintering box of the transfer sintering vehicle, a gas spray pipe is introduced into gas to ignite and send the raw materials into the U-shaped clinker sintering box in each sintering chamber to be sintered, each U-shaped clinker sintering box passes through one material distribution hopper to be fully distributed with one layer of raw materials, meanwhile, the raw materials are sintered in the sintering chambers from top to bottom due to high temperature generated by gas combustion, smoke generated by the gas combustion enters an exhaust hood from top to bottom under the suction effect of an induced draft fan, and then is discharged into the atmosphere from a smoke tower through an exhaust pipeline, a cyclone dust collector, a bag dust collector and an electrostatic dust collector;
the mixed hot air sprayed into the sintering chamber by the gas pipeline is provided by the adjacent hot air chambers, oxygen-containing air is blown in from the bottom of the hot air chambers by the air blower through the air inlet pipeline, passes through the transfer sintering vehicle in the hot air chambers and the high-temperature sintering clinker layer in the U-shaped clinker sintering chamber to carry out cooling and heat exchange, transfers heat to the green material layer on the upper part of the clinker layer to be preheated, and then the hot air is upwards mixed with combustible gas sprayed out by the gas pipeline in the sintering chamber to be combusted, so that the green material in the U-shaped clinker sintering chamber is sintered.
The transfer sintering vehicle moves in the tunnel sintering furnace along the external track transfer circulation arrangement of the internal track, the distributing system distributes raw materials in the transfer sintering vehicle in a sectional and layered mode, the combustion system sinters the raw materials into clinker in a sectional and layered mode, finally the transfer sintering vehicle pushes out the discharging material from the left end of the tunnel sintering furnace, and the transfer sintering vehicle after discharging material moves to the external track to be transferred to the right end inlet of the tunnel sintering furnace for circulation.
Example 2:
the method comprises the following steps that with the continuous pushing of a transfer sintering vehicle from an inlet at the right end of a tunnel sintering furnace, U-shaped clinker sintering boxes are arranged in a tunnel path to form a sintering groove to run leftwards, a sintering chamber and a hot air chamber in the tunnel sintering furnace are divided into the sintering chamber, the hot air chamber and the hot air chamber by taking a distributing hopper as a boundary and are arranged alternately in sequence, the transfer sintering vehicle uniformly distributes a next layer of raw materials from the right end of the tunnel sintering furnace through one distributing hopper, the transfer sintering vehicle passes through the sintering chamber and the hot air chamber to perform distribution sintering, then the raw materials are distributed and re-sintered, finally, the clinker prepared by full-load sintering of the transfer sintering vehicle is pushed out from the left end of the tunnel sintering furnace, and the raw materials are transported on the transfer sintering vehicle while being run.
Fresh air is blown into the hot air chamber from a funnel-shaped air inlet cover at the bottom of the hot air chamber, and after heat exchange is carried out between cold air and the high-temperature clinker layer, the cold air is mixed with fuel gas sprayed out from the fuel gas pipeline set in the front and back direction and then enters the sintering chamber for combustion.
The flue gas after burning in the sintering chamber enters the smoke exhaust hood under the suction action of the downward draught fan and is exhausted into the atmosphere from the smoke tower through the smoke exhaust pipeline, the cyclone dust collector, the bag-type dust collector and the electrostatic dust collector.
When the U-shaped clinker sintering box is fully loaded with clinker and is cooled and withdrawn from the last hot air chamber at the right end of the tunnel sintering furnace, the clinker is immediately cleaned up by the rotary scraper unloader, the unloaded transfer sintering vehicle is pushed onto the vertical transfer vehicle chassis which is parked on the vertical guide rail, as the U-shaped transfer sintering vehicle transition transfer track corresponding to the internal and external transverse guide rails is arranged on the vertical transfer vehicle chassis, the transfer sintering vehicle is transferred to the external transverse track from the internal transverse track through the external vertical track at the right end, then transferred to the external vertical track at the left end through the external transverse track, and finally queued to be pushed into the tunnel sintering furnace from the left end of the internal transverse track by the hydraulic pushing device, and all the transfer sintering vehicles automatically circulate to sinter the mineral powder green pellets under the control of the computer in sequence.
The running speed of the transfer sintering vehicle in the tunnel sintering furnace is that furnace temperature data is obtained by an industrial control computer according to a temperature sensor arranged at the top of the tunnel sintering furnace, and the furnace temperature is adjusted by adjusting the gas injection quantity of a gas injection pipe group controlled by an electromagnetic valve.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (8)
1. A tunnel type mineral powder sintering device is characterized by comprising the following structures: the device comprises a tunnel sintering furnace, a transfer sintering vehicle, an internal track, an external track, a material distribution system, a combustion system, an air inlet system and a smoke exhaust system, wherein the internal track is arranged at the bottom of the tunnel sintering furnace, the external track is arranged outside the tunnel sintering furnace and arranged in a quadrilateral mode with the internal track, the material distribution system and the combustion system are arranged at the top of the tunnel sintering furnace, and the air inlet system and the smoke exhaust system are connected with the bottom of the tunnel sintering furnace through an air inlet pipeline and a smoke exhaust pipeline.
2. The tunnel type mineral powder sintering equipment according to claim 1, characterized in that: the tunnel fritting furnace is the arch tunnel, the external steel construction in arch tunnel, and resistant firebrick is inlayed to the inner wall, is provided with the cloth system at the top subsection of tunnel fritting furnace, and the cloth system comprises belt raw material conveyer, industrial control scraper blade and cloth fill of unloading, and the industrial control scraper blade of unloading sets up on belt raw material conveyer in sections, and the below and the cloth fill entry of industrial control scraper blade of unloading are corresponding, and the lower extreme and the tunnel fritting furnace bore intercommunication of cloth funnel.
3. The tunnel type mineral powder sintering equipment according to claim 2, characterized in that: the inner space of the tunnel sintering furnace is divided into a sintering chamber and a hot air chamber by taking the distribution hopper as a boundary, and the sintering chamber and the hot air chamber are arranged in sequence from the right end of the tunnel sintering furnace to the left at intervals.
4. The tunnel type mineral powder sintering equipment according to claim 1, characterized in that: combustion system includes gas house steward, gas branch pipe and gas spray pipe group, and the gas house steward sets up the top at tunnel sintering stove, and the gas spray pipe group passes through the gas branch pipe to be connected with the gas house steward, and the gas spray pipe group sets up the connecting portion at sintering chamber and hot-blast room, and the solenoid valve is all installed and is connected with the industrial computer through the data line to every gas spray pipe of gas spray pipe group.
5. The tunnel type mineral powder sintering equipment according to claim 1, characterized in that: the transfer sintering vehicle consists of a transfer vehicle chassis and U-shaped clinker sintering boxes, wherein the bottom of the transfer vehicle chassis is provided with rollers connected with an internal track and an external track, the U-shaped clinker sintering boxes are arranged on the upper part of the transfer vehicle chassis, the front inner wall and the rear inner wall of each U-shaped clinker sintering box are provided with refractory bricks, and the left side and the right side of each U-shaped clinker sintering box are opened and are spliced with adjacent U-shaped clinker sintering boxes in a tunnel sintering furnace to form a clinker sintering groove.
6. The tunnel type mineral powder sintering equipment according to claim 1, characterized in that: the external track comprises an external transverse track and an external vertical track, the external transverse track is parallel to the internal track of the tunnel sintering furnace, the external vertical track is connected to the two ends of the internal track and the external transverse track, vertical transfer vehicle chassis are arranged on the vertical tracks at the two ends of the external transverse track, and U-shaped transfer sintering vehicle transition transfer tracks butted with the internal track and the external transverse track are arranged on the vertical transfer vehicle chassis.
7. The tunnel type mineral powder sintering equipment according to claim 1, characterized in that: the smoke exhaust system is formed by connecting a funnel-shaped exhaust hood, a cyclone separator, a bag-type dust collector, an electrostatic dust collector, an induced draft fan and a smoke tower through a flue, and the funnel-shaped exhaust hood is connected to the bottom of the sintering chamber of the tunnel sintering furnace.
8. The tunnel type mineral powder sintering equipment according to claim 1, characterized in that: the air inlet system is formed by connecting a funnel-shaped air inlet cover and an air blower through an air inlet pipeline, and the funnel-shaped air inlet cover is connected with the bottom of the hot air chamber of the tunnel sintering furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220864192.0U CN218059134U (en) | 2022-04-14 | 2022-04-14 | Tunnel type mineral powder sintering equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220864192.0U CN218059134U (en) | 2022-04-14 | 2022-04-14 | Tunnel type mineral powder sintering equipment |
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| CN218059134U true CN218059134U (en) | 2022-12-16 |
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| CN202220864192.0U Active CN218059134U (en) | 2022-04-14 | 2022-04-14 | Tunnel type mineral powder sintering equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990328A (en) * | 2022-04-14 | 2022-09-02 | 北京巨亚国际环境科技股份有限公司 | Tunnel type mineral powder sintering equipment and sintering method |
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2022
- 2022-04-14 CN CN202220864192.0U patent/CN218059134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990328A (en) * | 2022-04-14 | 2022-09-02 | 北京巨亚国际环境科技股份有限公司 | Tunnel type mineral powder sintering equipment and sintering method |
| CN114990328B (en) * | 2022-04-14 | 2024-06-11 | 北京巨亚国际环境科技股份有限公司 | Tunnel type mineral powder sintering equipment and sintering method |
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