CN102925614A - Material discharge device for vertical furnace - Google Patents
Material discharge device for vertical furnace Download PDFInfo
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- CN102925614A CN102925614A CN2012104779843A CN201210477984A CN102925614A CN 102925614 A CN102925614 A CN 102925614A CN 2012104779843 A CN2012104779843 A CN 2012104779843A CN 201210477984 A CN201210477984 A CN 201210477984A CN 102925614 A CN102925614 A CN 102925614A
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Abstract
The invention discloses a material discharge device for a vertical furnace, comprising a material blanking pipe, a gate valve, a rotating material discharge valve, an upper sealing valve, a discharged material tank, a material flow regulating valve and a lower sealing valve. The material discharge pipe is provided with at least two material dividing pipes; the gate valve is arranged at the inlet of the material discharge pipe or the outlets of the material dividing pipes; the rotating material discharge valve is arranged on the material dividing pipes and below the gate valve; the upper sealing valve is connected with the outlet of the rotating material discharge valve or the outlets of the material dividing pipes; the discharged material tank is connected with the outlet of the upper sealing valve; the material flow regulating valve is connected with the outlet of the discharged material tank; the lower sealing valve is connected with the outlet of the material flow regulating valve; and the discharged material tank is provided with a uniform pressure discharge interface. Due to the alternative work of equipment on the material flow paths of the material dividing pipes, the furnace material can be discharged continuously, and the vertical furnace can work continuously and efficiently. As the discharged material tank is provided with the uniform pressure discharge interface, the vertical furnace can discharge materials smoothly under pressure or normal pressure, and the material discharge device can work reliably and stably. The equipment in the material discharge device adopts the module design and can be repaired independently, so that the repair time is saved, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to the ironmaking equipment technical field, particularly a kind of discharge system of shaft furnace.
Background technology
Direct-reduced iron is the plurality of advantages such as stable components, detrimental impurity are low, epigranular because it has, and is more and more important in the status in ferrous metallurgy field.Recent years, the rate of increase of global direct-reduced iron output reaches 9%, and as seen its development potentiality is quite huge.The direct-reduction process for making iron has a variety of, and wherein gas-based shaft kiln is mainstream technology, and the direct-reduced iron output of production has accounted for about 75% of ultimate production.
The shaft furnace discharge device is the key equipment of direct-reduction shaft furnace, and can the performance quality of its work directly have influence on shaft furnace and normally produce.Shaft furnace is continuous pulp discharge, and is relatively easy for atmospheric operation shaft furnace discharge, but then relatively more difficult for band press operation shaft furnace discharge.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of shaft furnace discharge device, with Continuous Heat discharge or the continuous cold discharge of realizing that shaft furnace all can be reliable and stable under normal pressure and two kinds of operating modes with pressure.
Shaft furnace discharge device of the present invention, comprise tremie pipe, the gate valve that is arranged on tremie pipe import department or sub-feed tube export department with at least two sub-feed tubes, be arranged on the sub-feed tube and be positioned at the rotary discharge valve of gate valve below, the upper sealing valve that is connected with rotary discharge valve outlet or sub-feed tube outlet, export the discharge batch can that is connected, export the material flow gate that is connected and export the lower sealing valve that is connected with material flow gate with the discharge batch can with upper sealing valve, be provided with equal row pressure interface on the described discharge batch can.
Further, described gate valve is arranged at the export department of sub-feed tube, the outlet of described gate valve with rotary discharge valve import be connected corrugated tube and connect, import is connected described rotary discharge valve with upper sealing valve;
Further, described gate valve is arranged at the import department of tremie pipe, and the outlet of described sub-feed tube is connected import and is connected by corrugated tube with upper sealing valve;
Further, be provided with on the outlet section of described sub-feed tube disclose the material mouthful;
Further, described tremie pipe comprise have an opening for feed with are connected a discharge port the sub-material tube head with are connected a sub-feed tube that is connected with powder tube head discharge port, the V-shaped layout of described sub-feed tube;
Further, the outlet of described lower sealing valve is provided with the afterbody drainage conduit;
Further, also comprise the belt material conveyor that is arranged on afterbody drainage conduit below;
Further, circumferentially be evenly arranged discharge batch can bracing or strutting arrangement along it on the described discharge batch can outer wall;
Further, be provided with the upper sealing valve access door on the described discharge batch can;
Further, be provided with the lower sealing valve access door on the clack box of described lower sealing valve.
Beneficial effect of the present invention: shaft furnace discharge device of the present invention has following beneficial effect:
1, this shaft furnace discharge device can be realized the continuous pulp discharge of furnace charge by the staggered work of equipment on each sub-feed tube material flow path, guarantees the continuous high-efficient operation of shaft furnace system.
2, be provided with equal row pressure interface on the discharge batch can of this shaft furnace discharge device, can realize the smooth discharge of shaft furnace in normal pressure and situation with pressure, ensure the reliable and stable work of discharge device.
3, each equipment adopts modular design in this shaft furnace discharge device, can overhaul separately, and be provided with access door, can greatly save the repair time, reduces maintenance cost.
Description of drawings
Fig. 1 is the first embodiment structural representation of this shaft furnace discharge device;
Fig. 2 is the second embodiment structural representation of this shaft furnace discharge device.
Description of reference numerals: 1-tremie pipe, 2-gate valve, 3-rotary discharge valve, 4-upper sealing valve, 5-discharge batch can, 6-material flow gate, 7-lower sealing valve, the equal row pressure interface of 8-, 9-corrugated tube, 10-disclose material mouth, 11-sub-material tube head, 12-afterbody drainage conduit, 13-belt material conveyor, 14-bracing or strutting arrangement, 15-upper sealing valve access door, 16-clack box, 17-lower sealing valve access door.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the present embodiment shaft furnace discharge device, comprise tremie pipe, the gate valve 2 that is arranged on sub-feed tube export department with two sub-feed tubes 1, be arranged on the sub-feed tube 1 and be positioned at the rotary discharge valve 3 of gate valve 2 belows, the upper sealing valve 4 that is connected with rotary discharge valve 3 outlets, the discharge batch can 5 that is connected with upper sealing valve 4 outlets, export the material flow gate 6 that is connected and export the lower sealing valve 7 that is connected with material flow gate 6 with discharge batch can 5, be provided with equal row pressure interface 8 on the described discharge batch can 5.
Gate valve described in the present embodiment 2 is push-pull valve, can reliably block material stream, and it is simple in structure, is convenient to implement, and certainly also can adopt other forms of gate valve in different embodiments.
The present embodiment shaft furnace discharge device, have two sub-feed tubes 1, also have accordingly two gate valves 2, two rotary discharge valves 3, two upper sealing valves 4, two discharge batch cans 5, two material flow gates 6 and two lower sealing valves 7, two gate valves 2 are respectively the first gate valve and the second gate valve in following discharge process prescription, two rotary discharge valves 3 are respectively the first rotary discharge valve and the second rotary discharge valve, two upper sealing valves 4 are respectively the first upper sealing valve and the second upper sealing valve, two discharge batch cans 5 are respectively the first discharge batch can and the second discharge batch can, two material flow gates 6 are respectively the first material flow gate and the second material flow gate, and two lower sealing valves 7 are respectively the first lower sealing valve and the second lower sealing valve.Certainly in different embodiments, the quantity of described sub-feed tube 1 also can specifically arrange as required, and its quantity can above other values more than two.
The detailed operation process of the present embodiment shaft furnace discharge device is as follows:
The opening for feed of tremie pipe is connected with the discharge port of shaft furnace body, when the shaft furnace body is reinforced to the first discharge batch can, the second discharge batch can original state is full for material, and corresponding the second upper sealing valve, the second material flow gate and the second lower sealing valve all are in closing condition, and the second discharge batch can internal pressure is consistent with the pressure in the sub-feed tube 1.At first, by equal row pressure mouth, 8 pairs of interior pressure of the second discharge batch can carry out pressure release, until consistent with batch can outside atmosphere pressure, after this, open the valve plate of the second lower sealing valve corresponding to the second discharge batch can, open the valve plate of the second material flow gate after some seconds, and then constantly from the second discharge batch can discharging to the material transportation band, the material transportation band continuously moves material is seen off furnace charge.
After the complete emptying of furnace charge in the second discharge batch can, close successively the valve plate of the second material flow gate and the valve plate of the second lower sealing valve, subsequently the second discharge batch can is filled with the body of all calming the anger by equal row pressure mouth 8, until the interior pressure of pressure and sub-feed tube 1 in the second discharge batch can consistent after, open the valve plate of the second upper sealing valve, start the second rotary discharge valve corresponding to the second discharge batch can after some seconds, furnace charge begins constantly to drain into the second discharge batch can under the driving of the second rotary discharge valve, has namely begun the charging process of the second discharge batch can.
When starting the second rotary discharge valve corresponding to the second discharge batch can, the first discharge batch can is just feeded and is finished, close successively the valve plate of the first rotary discharge valve corresponding to the first discharge batch can and the first upper sealing valve this moment, and then the first discharge batch can has then begun the processes such as the pressure release consistent with above-mentioned the second discharge batch can, discharge.
Said process is the one-period of the first discharge batch can and the interlaced work of the second discharge batch can, by the circulation of said process, can realize working continuously of shaft furnace furnace charge discharging.
The shaft furnace discharge device of the present embodiment, when air pressure in the sub-feed tube 1 under the operating mode near normal pressure, its discharge and above-mentioned discharge process with press operation are similar, but do not need to carry out the operating process of equal row pressure.
The present embodiment shaft furnace discharge device can be realized the continuous pulp discharge of furnace charge by the staggered work of equipment on each sub-feed tube material flow path, guarantees the continuous high-efficient operation of shaft furnace system; And at the discharge batch can equal row pressure interface is set, has realized the smooth discharge of shaft furnace in normal pressure and situation with pressure, ensured the reliable and stable work of discharge device.
As the improvement to the present embodiment, the outlet of described gate valve 2 is connected import by corrugated tube 9 connections with rotary discharge valve, can compensate each equipment of discharge system foozle is installed.
As the improvement to the present embodiment, be provided with on the outlet section of described sub-feed tube 1 and disclose material mouthfuls 10, by disclosing blanking situation in the material mouthful 10 observable tremie pipes 1, and when stopping up, tremie pipe can disclose material to dredge sub-feed tube 1 by disclosing material mouthfuls 10.
As the improvement to the present embodiment, described tremie pipe comprise have an opening for feed with are connected a discharge port sub-material tube head 11 with are connected a sub-feed tube 1 that is connected with powder tube head 11 discharge ports; Tremie pipe adopts integrated structure, and be convenient to make, keep in repair and change, and described sub-feed tube 1 V-shaped layout, sub-feed tube 1 arrangement is compact, and the angle of inclination is large, is conducive to material.
As the improvement to the present embodiment, the outlet of described lower sealing valve 7 is provided with afterbody drainage conduit 12, afterbody drainage conduit 12 conveyer that discharge can be led, and the dust can reduce blanking the time.
As the improvement to the present embodiment, this shaft furnace discharge device also comprises the belt material conveyor 13 that is arranged on afterbody drainage conduit 12 belows, and belt material conveyor 13 is used for discharge is transported, and avoids discharge to pile up.
As the improvement to the present embodiment, circumferentially be evenly arranged discharge batch can bracing or strutting arrangement 14 along it on the outer wall of described discharge batch can 5, discharge batch can 5 is supported on the steel construction by bracing or strutting arrangement 14, and convenient fixing is installed.
As the improvement to the present embodiment, be provided with upper sealing valve access door 15 on the described discharge batch can 5, conveniently discharge batch can 5 and upper sealing valve 4 are overhauled.
As the improvement to the present embodiment, be provided with lower sealing valve access door 17 on the clack box 16 of described lower sealing valve 7, be convenient to lower sealing valve 7 is overhauled.
Embodiment two: in the present embodiment shaft furnace discharge device, described gate valve 2 is arranged at the import department of tremie pipe, and the import that described sub-feed tube 1 outlet is connected with upper sealing valve connects by corrugated tube 9; Other structure of the present embodiment shaft furnace discharge device is identical with embodiment one, and its working process is also identical with embodiment one.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. shaft furnace discharge device, it is characterized in that: comprise tremie pipe, the gate valve that is arranged on tremie pipe import department or sub-feed tube export department with at least two sub-feed tubes, be arranged on the sub-feed tube and be positioned at the rotary discharge valve of gate valve below, the upper sealing valve that is connected with rotary discharge valve outlet or sub-feed tube outlet, export the discharge batch can that is connected, export the material flow gate that is connected and export the lower sealing valve that is connected with material flow gate with the discharge batch can with upper sealing valve, be provided with equal row pressure interface on the described discharge batch can.
2. shaft furnace discharge device according to claim 1, it is characterized in that: described gate valve is arranged at the export department of sub-feed tube, the outlet of described gate valve with rotary discharge valve import be connected corrugated tube and connect, import is connected described rotary discharge valve with upper sealing valve.
3. shaft furnace discharge device according to claim 1, it is characterized in that: described gate valve is arranged at the import department of tremie pipe, and described sub-feed tube outlet is connected import and is connected by corrugated tube with upper sealing valve.
4. according to claim 1 shaft furnace discharge device is characterized in that: be provided with on the outlet section of described sub-feed tube and disclose material mouthful.
5. arbitrary described shaft furnace discharge device according to claim 1-4, it is characterized in that: described tremie pipe comprise have an opening for feed with are connected a discharge port the sub-material tube head with are connected a sub-feed tube that is connected with powder tube head discharge port, the V-shaped layout of described sub-feed tube.
6. shaft furnace discharge device according to claim 5, it is characterized in that: the outlet of described lower sealing valve is provided with the afterbody drainage conduit.
7. shaft furnace discharge device according to claim 6 is characterized in that: also comprise the belt material conveyor that is arranged on afterbody drainage conduit below.
8. shaft furnace discharge device according to claim 7 is characterized in that: circumferentially be evenly arranged discharge batch can bracing or strutting arrangement along it on the described discharge batch can outer wall.
9. shaft furnace discharge device according to claim 8 is characterized in that: be provided with the upper sealing valve access door on the described discharge batch can.
10. shaft furnace discharge device according to claim 9 is characterized in that: be provided with the lower sealing valve access door on the clack box of described lower sealing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104779843A CN102925614A (en) | 2012-11-22 | 2012-11-22 | Material discharge device for vertical furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104779843A CN102925614A (en) | 2012-11-22 | 2012-11-22 | Material discharge device for vertical furnace |
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| CN102925614A true CN102925614A (en) | 2013-02-13 |
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| CN2012104779843A Pending CN102925614A (en) | 2012-11-22 | 2012-11-22 | Material discharge device for vertical furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106867551A (en) * | 2017-03-01 | 2017-06-20 | 陕西伯特能源科技有限公司 | Binding coal upgrading furnace and additive and coal cleaning processes |
| CN107841587A (en) * | 2017-12-21 | 2018-03-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of external-heat coal-based direct reduction iron shaft furnace process for layout and system |
| CN110155533A (en) * | 2019-06-24 | 2019-08-23 | 台州锐奥环保科技有限公司 | A kind of multistage feeder equipment for conveying granular material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278305A (en) * | 1997-11-07 | 2000-12-27 | 沃斯特－阿尔派因工业设备制造有限公司 | Withdrawal device for shaft furnace |
| WO2001014598A1 (en) * | 1999-08-20 | 2001-03-01 | Midrex International B.V. Rotterdam, Zurich Branch | Direct reduced iron discharge system |
| CN2802400Y (en) * | 2005-04-14 | 2006-08-02 | 苏州北岛能源技术有限公司 | Vertical internal combustion pelletizing shaft furnace |
| CN101693933A (en) * | 2009-10-22 | 2010-04-14 | 中冶赛迪工程技术股份有限公司 | Ironmaking technical furnace top charging technology |
| CN201653166U (en) * | 2009-12-25 | 2010-11-24 | 唐山钢铁设计研究院有限公司 | Discharge cooling device of shaft furnace |
| CN102633026A (en) * | 2012-04-15 | 2012-08-15 | 葛洲坝集团第五工程有限公司 | Bagged cement or fly ash unpacking and conveying system and operation method thereof |
| CN202912995U (en) * | 2012-11-22 | 2013-05-01 | 中冶赛迪工程技术股份有限公司 | Blowdown device of shaft furnace |
-
2012
- 2012-11-22 CN CN2012104779843A patent/CN102925614A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278305A (en) * | 1997-11-07 | 2000-12-27 | 沃斯特－阿尔派因工业设备制造有限公司 | Withdrawal device for shaft furnace |
| WO2001014598A1 (en) * | 1999-08-20 | 2001-03-01 | Midrex International B.V. Rotterdam, Zurich Branch | Direct reduced iron discharge system |
| CN2802400Y (en) * | 2005-04-14 | 2006-08-02 | 苏州北岛能源技术有限公司 | Vertical internal combustion pelletizing shaft furnace |
| CN101693933A (en) * | 2009-10-22 | 2010-04-14 | 中冶赛迪工程技术股份有限公司 | Ironmaking technical furnace top charging technology |
| CN201653166U (en) * | 2009-12-25 | 2010-11-24 | 唐山钢铁设计研究院有限公司 | Discharge cooling device of shaft furnace |
| CN102633026A (en) * | 2012-04-15 | 2012-08-15 | 葛洲坝集团第五工程有限公司 | Bagged cement or fly ash unpacking and conveying system and operation method thereof |
| CN202912995U (en) * | 2012-11-22 | 2013-05-01 | 中冶赛迪工程技术股份有限公司 | Blowdown device of shaft furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106867551A (en) * | 2017-03-01 | 2017-06-20 | 陕西伯特能源科技有限公司 | Binding coal upgrading furnace and additive and coal cleaning processes |
| CN107841587A (en) * | 2017-12-21 | 2018-03-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of external-heat coal-based direct reduction iron shaft furnace process for layout and system |
| CN110155533A (en) * | 2019-06-24 | 2019-08-23 | 台州锐奥环保科技有限公司 | A kind of multistage feeder equipment for conveying granular material |
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Application publication date: 20130213 |