CN101709340A - Single-bucket serial-bucket charging method applied to bell-free blast furnaces - Google Patents
Single-bucket serial-bucket charging method applied to bell-free blast furnaces Download PDFInfo
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- CN101709340A CN101709340A CN200910113504A CN200910113504A CN101709340A CN 101709340 A CN101709340 A CN 101709340A CN 200910113504 A CN200910113504 A CN 200910113504A CN 200910113504 A CN200910113504 A CN 200910113504A CN 101709340 A CN101709340 A CN 101709340A
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Abstract
The invention discloses a single-bucket serial-bucket charging method applied to bell-free blast furnaces. The method comprises: taking a material-receiving hopper and one failure-free charging bucket as an upper charging bucket and a lower charging bucket connected in series; adding a car of material to the upper charging bucket first in a charging process and discharging the material through the lower charging bucket; putting the material in the upper charging bucket into the lower charging bucket and putting a car of material into the lower charging bucket at a normal charging speed through a hoist skip car at the same time; putting two cars of material in the lower charging bucket into a blast furnace under the control of a blast furnace control computer so as to finish the process of charging the blast furnace; and repeating the steps. Therefore, when a certain charging-bucket equipment system breaks down, a single normal charging bucket can still be utilized to continue production so as to prevent the blast furnace from damping down, ensure that the blast furnace can continue to produce and meet requirements for charging capacity and charging speed.
Description
Technical field
The invention belongs to the improvement of bell-free blast furnaces charging process, particularly be applied to the single-bucket serial-bucket charging method on the bell-free blast furnaces.
Background technology
At present, bell-free blast furnaces furnace roof feeding system is material to be moved in two block form batch cans to (south jar, north jar) by windlass, treat that blast furnace specifies stockline to arrive after, again material is put into stove, south, two the batch can cycle alternations uses in north.Can two batch can equipment normally move, and directly influences the production of blast furnace.
The flow process of using now of feeding in blast furnace south, the north batch can is as follows:
1, batch can material spacing wave is come, and all pressure, throttling valve are closed, and lower seal valve shutdown signal is come, and batch can possesses the material feeding condition;
2, the mobile hopper signal that puts in place sends, and the open valve that looses is opened upper sealing valve, and batch can is checked signal cancellation, satisfies windlass truck entry condition;
3, four big gates of batching close signals under the groove, and the windlass truck starts;
4, in a batch can, draw enough car numbers by charging system, close and diffuse valve, close upper sealing valve, send batch can and check signal;
5, another batch can sends the batch can spacing wave, and hopper (flap valve) moves into place, and open loosing opened upper sealing valve, and the master winch truck starts, and draws enough car numbers by charging system in this batch can, closes to diffuse valve, closes upper sealing valve, sends batch can and checks signal;
6, along with the carrying out of smelting, material end face in the blast furnace arrives specifies the stockline place, stock rod is mentioned zero-bit, and cloth is often changeed at the β angle, opens equalizing valve and all presses, close equalizing valve, the α angular motion is done, and reaches specified angle, drives the lower seal valve, throttle opening, the material in south, the north batch can is gone in the stove by airtight box β angle rotation cloth.After batch can material spacing wave was sent, full throttle was closed throttling valve, closes the lower seal valve;
7, stock rod descends, and surveys charge level;
8, enter next charging circulation.
Wherein: said α angle: referring to does not have the angle that the distributor chute in the bell furnace roof airtight box fascinates up and down.The β angle: referring to not have the angle of the distributor chute 360 degree rotations in the bell furnace roof airtight box, is zero degree with iron mouth direction.
Under the normal circumstances, blast furnace just overhauled 1 time in 3 months, could overhaul furnace roof equipment.But, equipment breaks down in a certain batch can, when equipment such as, down close, throttling close such as all pressing, diffuse, going up, mobile hopper and batch can Hydraulic Station break down, to cause windlass to move material in the fault batch can to, perhaps the material in the fault batch can can't be put in the blast furnace, make to produce and be forced to interrupt, thereby cause blast furnace staying, blase furnace cast iron output is affected.
Summary of the invention
The object of the present invention is to provide a kind of single-bucket serial-bucket charging method that is applied on the bell-free blast furnaces, when a certain batch can device systems breaks down, still can utilize another normal batch can to continue to produce, and be unlikely to blast furnace staying, guarantee that blast furnace can continue to keep production status, can also satisfy the requirement of charging capability and material loading speed simultaneously.
The object of the present invention is achieved like this: a kind of single-bucket serial-bucket charging method that is applied on the bell-free blast furnaces, after a batch can in two batch cans of bell-free blast furnaces breaks down, then this fault batch can is stopped using, keep hopper to be fixedly connected on all the time on another trouble free batch can this moment, with the feeding space of hopper and this trouble free batch can upper sealing valve plate top together as last batch can, and said trouble free batch can forms the single-bucket serial-bucket charging situation that upper and lower batch can is cascaded as blanking tank;
The operation steps of feeding in raw material in blast furnace by upper and lower batch can is as follows:
(1), blanking tank is prepared blowing, the upper sealing valve of blanking tank is closed, when the lower seal valve of blanking tank is opened blowing, the windlass truck just begins to feed in raw material toward said going up in the batch can, guarantee the normal material loading speed of windlass truck, the windlass truck is up, batch turning is gone up in the batch can to said, is shown in the blanking tank by the blast furnace control computer and deposits 1 car material;
(2), after blanking tank has been put material, on the blanking tank diffuse valve and upper sealing valve is opened, throttling valve on the blanking tank and lower seal valve are closed, under the control of blast furnace control computer, the 1 car material of going up in the batch can in the step 1 is put into blanking tank, at this moment the windlass truck starts once more, the second car material of windlass truck dress is also packed in the blanking tank by hopper, by depositing 2 car material in the blast furnace control computer demonstration blanking tank, blanking tank sends and checks that signal makes the windlass truck stop to feed in raw material then;
(3), along with the carrying out of smelting, material end face in the blast furnace arrives the appointment stockline place of blast furnace, blast furnace probing rod is mentioned zero-bit, cloth is often changeed at the β angle, opening the equalizing valve of blanking tank earlier all presses, close the equalizing valve of blanking tank again, the α angular motion is done, reach specified angle, and open lower seal valve convey materials in airtight box of blanking tank, and repeat step 1 simultaneously, make and deposit 1 car material in the batch can again, open the throttling valve of blanking tank, the material in the blanking tank enters in the stove by airtight box β angle rotation cloth; Blanking tank sends the material spacing wave, and the throttling valve of standard-sized sheet blanking tank cuts out the throttling valve of blanking tank again, closes the lower seal valve of blanking tank, finishes toward the furnace charge process;
(4), blast furnace probing rod descends the detection charge level;
(5), repeating step (1), enter next charging circulation.
When a certain batch can device systems of bell-free blast furnaces breaks down, adopt the inventive method reinforced in blast furnace, still can utilize another normal batch can to continue to produce, and be unlikely to blast furnace staying, guarantee that blast furnace can continue to keep production status, satisfy the requirement of charging capability and material loading speed simultaneously, greatly reduced the blast furnace staying rate that causes because of equipment failure, ensured the operation of blast furnace ordinary production.Adopt the inventive method to increase the handiness and the practicality of operation greatly, two batch cans of bell-free blast furnaces can both be implemented the single-bucket serial-bucket charging technology separately, have effectively improved plant factor, also for having created condition by two batch can device systems of maintenance repair later on.The inventive method is according to the practical problems that exists in producing, existing bell-free blast furnaces charging process is improved and optimizes, through on probation, thoroughly eliminated the breaks in production problem that blast furnace causes because of the batch can fault, when a batch can has fault, timely repair and maintenance, and utilize another batch can normal operation, thus can realize that blast furnace uninterruptedly produces, effectively improved the production efficiency of enterprise, improve economic benefit, obtained obvious effects.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Accompanying drawing is the structural representation of used batch can in the inventive method.
Embodiment
A kind of single-bucket serial-bucket charging method that is applied on the bell-free blast furnaces, as shown in drawings, after a batch can in two batch cans of bell-free blast furnaces breaks down, then this fault batch can is stopped using and emptying material wherein, keep hopper to be fixedly connected on all the time on another trouble free batch can this moment, with the feeding space of hopper and this trouble free batch can upper sealing valve plate top together as last batch can 1, and said trouble free batch can is as blanking tank 5, form the single-bucket serial-bucket charging situation that upper and lower batch can 1,5 is cascaded, guarantee that blast furnace production is uninterrupted.
The operation steps of feeding in raw material in blast furnace by the upper and lower batch can that is cascaded is as follows:
(1), at first, blanking tank 5 is prepared blowing, emptying, the upper sealing valve 2 of blanking tank 5 is closed, when the lower seal valve 7 of blanking tank 5 is opened blowing, the windlass truck just begins to feed in raw material toward said going up in the batch can 1, guarantee the normal material loading speed and the material loading amount of windlass truck, the windlass truck is up, batch turning is gone up in the batch can 1 to said, is shown in the blanking tank 5 by the blast furnace control computer and deposits 1 car material.
(2), after blanking tank 5 has been put material, on the blanking tank 5 diffuse valve 4 and upper sealing valve 2 is opened, throttling valve 6 and lower seal valve 7 on the blanking tank 5 are closed, and under the control of blast furnace control computer, the 1 car material of going up in the step 1 in the batch can 1 are put into blanking tank 5.At this moment the windlass truck starts once more, and the second car material of windlass truck dress is also packed in the blanking tank 5 by hopper, is shown in the blanking tank 5 by the blast furnace control computer and deposits 2 car material, and blanking tank 5 sends and checks that signal makes the windlass truck stop to feed in raw material then.
(3), along with the carrying out of smelting, material end face in the blast furnace descends gradually and arrives the appointment stockline place of blast furnace, blast furnace probing rod is mentioned zero-bit, cloth is often changeed at the β angle, opening the equalizing valve 3 of blanking tank 5 earlier all presses, close the equalizing valve 3 of blanking tank again, the α angular motion is done, reach specified angle, and open lower seal valve 7 convey materials in airtight box 8 of blanking tank 5, and repeat step 1 simultaneously, make and deposit 1 car material in the batch can 1 again, open the throttling valve 6 of blanking tank, the material in the blanking tank 5 enters in the stove by airtight box β angle rotation cloth; Blanking tank 5 sends the material spacing wave, and the throttling valve 6 of standard-sized sheet blanking tank 5 cuts out the throttling valve 6 of blanking tank again, closes the lower seal valve 7 of blanking tank 5, finishes toward the furnace charge process;
(4), blast furnace probing rod descends the detection charge level;
(5), repeating step (1), enter next charging circulation.
Claims (1)
1. single-bucket serial-bucket charging method that is applied on the bell-free blast furnaces, it is characterized in that: after a batch can in two batch cans of bell-free blast furnaces breaks down, then this fault batch can is stopped using, keep hopper to be fixedly connected on all the time on another trouble free batch can this moment, with the feeding space of hopper and this trouble free batch can upper sealing valve plate top together as last batch can, and said trouble free batch can forms the single-bucket serial-bucket charging situation that upper and lower batch can is cascaded as blanking tank;
The operation steps of feeding in raw material in blast furnace by upper and lower batch can is as follows:
(1), blanking tank is prepared blowing, the upper sealing valve of blanking tank is closed, when the lower seal valve of blanking tank is opened blowing, the windlass truck just begins to feed in raw material toward said going up in the batch can, guarantee the normal material loading speed of windlass truck, the windlass truck is up, batch turning is gone up in the batch can to said, is shown in the blanking tank by the blast furnace control computer and deposits 1 car material;
(2), after blanking tank has been put material, on the blanking tank diffuse valve and upper sealing valve is opened, throttling valve on the blanking tank and lower seal valve are closed, under the control of blast furnace control computer, the 1 car material of going up in the batch can in the step 1 is put into blanking tank, at this moment the windlass truck starts once more, the second car material of windlass truck dress is also packed in the blanking tank by hopper, by depositing 2 car material in the blast furnace control computer demonstration blanking tank, blanking tank sends and checks that signal makes the windlass truck stop to feed in raw material then;
(3), along with the carrying out of smelting, material end face in the blast furnace arrives the appointment stockline place of blast furnace, blast furnace probing rod is mentioned zero-bit, cloth is often changeed at the β angle, opening the equalizing valve of blanking tank earlier all presses, close the equalizing valve of blanking tank again, the α angular motion is done, reach specified angle, and open lower seal valve convey materials in airtight box of blanking tank, and repeat step 1 simultaneously, make and deposit 1 car material in the batch can again, open the throttling valve of blanking tank, the material in the blanking tank enters in the stove by airtight box β angle rotation cloth; Blanking tank sends the material spacing wave, and the throttling valve of standard-sized sheet blanking tank cuts out the throttling valve of blanking tank again, closes the lower seal valve of blanking tank, finishes toward the furnace charge process;
(4), blast furnace probing rod descends the detection charge level;
(5), repeating step (1), enter next charging circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101135043A CN101709340B (en) | 2009-10-30 | 2009-10-30 | Single-bucket serial-bucket charging method applied to bell-free blast furnaces |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101135043A CN101709340B (en) | 2009-10-30 | 2009-10-30 | Single-bucket serial-bucket charging method applied to bell-free blast furnaces |
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| CN101709340A true CN101709340A (en) | 2010-05-19 |
| CN101709340B CN101709340B (en) | 2012-05-09 |
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| CN2009101135043A Expired - Fee Related CN101709340B (en) | 2009-10-30 | 2009-10-30 | Single-bucket serial-bucket charging method applied to bell-free blast furnaces |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201416A (en) * | 2017-06-20 | 2017-09-26 | 攀钢集团西昌钢钒有限公司 | A kind of blast furnace bucket sealing valve application method |
| CN107217118A (en) * | 2017-06-20 | 2017-09-29 | 攀钢集团西昌钢钒有限公司 | A kind of lower sealing valve application method of blast furnace bucket |
| CN109593902A (en) * | 2018-12-03 | 2019-04-09 | 江苏省沙钢钢铁研究院有限公司 | Blast furnace top big and small tank mixed material distribution system and method |
| CN111351363A (en) * | 2020-03-09 | 2020-06-30 | 北京嘉永会通能源科技有限公司 | Conveying device for furnace feeding system |
| CN113549722A (en) * | 2021-07-23 | 2021-10-26 | 攀钢集团西昌钢钒有限公司 | Bell-less blast furnace feeding method, device and system |
| CN113913575A (en) * | 2021-09-27 | 2022-01-11 | 张家港宏昌钢板有限公司 | Method for quickly pulling materials from serial tank type furnace top |
| CN115418422A (en) * | 2022-09-15 | 2022-12-02 | 包头钢铁（集团）有限责任公司 | Optimization method for reducing material distribution segregation of blast furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034584U (en) * | 1988-04-01 | 1989-03-22 | 北京钢铁学院 | Blast furnace with appliance for distributing burden |
| SU1611940A1 (en) * | 1988-05-23 | 1990-12-07 | Днепропетровский Металлургический Институт | Method of charging blast furnace by cone-less charging arrangement |
| EP1445334A1 (en) * | 2002-08-29 | 2004-08-11 | JFE Steel Corporation | Raw material charging method for bell-less blast furnace |
| JP3094018U (en) * | 2002-10-08 | 2003-05-30 | 有限会社織道楽塩野屋 | Coffee strainer |
-
2009
- 2009-10-30 CN CN2009101135043A patent/CN101709340B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201416A (en) * | 2017-06-20 | 2017-09-26 | 攀钢集团西昌钢钒有限公司 | A kind of blast furnace bucket sealing valve application method |
| CN107217118A (en) * | 2017-06-20 | 2017-09-29 | 攀钢集团西昌钢钒有限公司 | A kind of lower sealing valve application method of blast furnace bucket |
| CN109593902A (en) * | 2018-12-03 | 2019-04-09 | 江苏省沙钢钢铁研究院有限公司 | Blast furnace top big and small tank mixed material distribution system and method |
| CN111351363A (en) * | 2020-03-09 | 2020-06-30 | 北京嘉永会通能源科技有限公司 | Conveying device for furnace feeding system |
| CN113549722A (en) * | 2021-07-23 | 2021-10-26 | 攀钢集团西昌钢钒有限公司 | Bell-less blast furnace feeding method, device and system |
| CN113913575A (en) * | 2021-09-27 | 2022-01-11 | 张家港宏昌钢板有限公司 | Method for quickly pulling materials from serial tank type furnace top |
| CN115418422A (en) * | 2022-09-15 | 2022-12-02 | 包头钢铁（集团）有限责任公司 | Optimization method for reducing material distribution segregation of blast furnace |
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| CN101709340B (en) | 2012-05-09 |
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