CN2034584U - Blast furnace with appliance for distributing burden - Google Patents
Blast furnace with appliance for distributing burden Download PDFInfo
- Publication number
- CN2034584U CN2034584U CN 88202324 CN88202324U CN2034584U CN 2034584 U CN2034584 U CN 2034584U CN 88202324 CN88202324 CN 88202324 CN 88202324 U CN88202324 U CN 88202324U CN 2034584 U CN2034584 U CN 2034584U
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- valve
- furnace
- blast furnace
- seal valve
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Abstract
Disclosed is a blast furnace charging device with compact structure and low height. At least two parallel receiving hoppers, upper corrugated pipe, upper flow regulating valve and upper seal valve with corresponding quantity are connected in series with a center charging tank to form an upper and a lower two layers of storage tanks to organize materials to be charged; the discharge opening of the center charging tank is connected in series with the transmission case of a distributor hung with a distributing chute via a set of lower corrugated pipes, a lower flow regulating valve and a lower seal valve.
Description
The utility model is a kind of non-bell furnace top charging equipment that is used for shaft furnace charging.
The modern blast furnace loading device is except the facility that must satisfy high top pressure operation sealing reliably and the adjusting of furnace throat cloth, equipment and electrical control thereof also will be simplified as far as possible, reduce the height of furnace roof equipment and structures, reduce investment and maintenance cost, increase economic efficiency.
The PW of Luxembourg's invention does not have the bell furnace roof and (sees United States Patent (USP) № 4,074,816) can satisfy the handiness of reliable stopping property of modern blast furnace high top pressure operation and furnace throat cloth, but practice shows, the present PW that uses does not have the bell furnace roof and still has many shortcomings, and one of them is that whole top charging equipment and required structures thereof are risen 5～9 meters than conventional oven.Particularly when old blast furnace reformation, if will adopt the PW non-bell furnace top charging equipment, the structures of whole furnace roof, comprise about 500～1000 tons of weight of steelframe, each layer platform, furnace roof crane, upcast and downtake, all to reconstruct, and skew bridge also will increase angle and height, and this will pay huge investment, influence economic benefit.
Another shortcoming that PW does not have the bell furnace roof is that the arranged side by side extra quality jar that it adopts (is seen United States Patent (USP) № 4,040,530) or the thin material of biasing jar (see United States Patent (USP) № 4,151,047) because of its batch can position not on the blast furnace medullary ray, the furnace charge that enters the center trunnion is setovered influence that the batch can discharge has horizontal component velocity and produce particle segregation is no matter therefore the furnace charge that quantity or granularity all can not guarantee to enter distributor chute feed symmetrically and evenly makes the quantity of the circumferential cloth of furnace throat and granularity inhomogeneous.
The purpose of this utility model is in order to overcome above-mentioned shortcoming, to propose a kind of novel non-bell furnace top charging equipment.Fig. 1 is the longitudinal section of the non-bell furnace top charging equipment that the utility model proposes.This equipment comprises by at least two hoppers arranged side by side (10,10 ') and the last corrugated tube (9 of respective numbers, 9 '), go up throttling valve (8,8 ') and upper sealing valve (7,7 ') connecting with a center batch can (6) forms upper and lower two-layer material-storage jar and organizes charge to feed, the discharge gate of center batch can (6) by a cover down corrugated tube (5), throttling valve (4) and lower seal valve (3) and the distributor transmission case (2) that hangs with distributor chute (1) are in series down.
Distributor transmission case (2) is fixed on the steel ring (11) of burner conical shell, center batch can (6) and hopper (10,10 ') be fixed on the crossbeam (12 of furnace roof steelframe, 13) on, each equipment is connected by flange, positiver sealing when upper and lower corrugated tube (9,9 ' 5) can guarantee that each flange connects again can the absorption temperature distortion and change each equipment (mainly being seal valve) time and need stretch.
Upper and lower seal valve (7,7 ' 3) guarantees the furnace roof double seal, lower seal valve (3) when opening cloth upper sealing valve (7,7 ') must close; Otherwise upper sealing valve (7,7 ') is opened toward center batch can (6) when filling with substance lower seal valve (3) and must be closed.Upper and lower throttling valve (8,8 ', 4) play the backgauge effect, guarantee the contact of furnace charge discord sealed valve cap, therefore have only after sealed valve cap is opened and just can open throttling valve.In addition, following throttling valve (4) also plays a part to regulate the materials flow size, in order to the needs of cloth control.Center batch can (6) and hopper (10,10 ') be storage material all, and works in coordination and organize charge.The useful volume of center batch can (6) is equivalent to 2～4 car material (during the truck material loading), and the useful volume of each hopper (10,10 ') is equivalent to 1 car material.Under normal circumstances, center batch can and hopper store alternately respectively that criticize in the ore deposit and coke (per) charge, alternately are distributed in the stove respectively so that criticize with coke (per) charge in the ore deposit.Center batch can (6) and hopper (10,10 ') respectively have the whether emptying of gamma-rays level gage (14,15,16) monitoring volume of oneself, send interlock control signal.Center batch can (6) is connected to all presses and row pressure pipeline (not shown), and its effect and operation are identical with routine.Furnace roof equipment is except that distributor adopts electric motor driving, and all the other valve kind equipments are all used oil cylinder and a concentrated Hydraulic Station (not shown) operation.
Because throttling valve (4) and lower seal valve (3) are arranged on the blast furnace medullary ray under an employing center batch can (6) and the cover, the furnace charge that enters chute during cloth falls (Mi) symmetrically along the stove medullary ray, guarantees that circumferentially cloth is even in the stove.Having overcome PW does not have the arranged side by side of bell furnace roof, and extra quality jar or biasing thin material jar when filling with substance make the shortcoming of the circumferential cloth inequality of furnace throat.
The loading device aspect ratio PW of Fig. 1 does not have the short reason of bell furnace roof:
1.PW the hopper of furnace roof (seeing United States Patent (USP) № 4,074,816) is the removable hopper of material stock not, huge space and using for guide highly merely.And two hoppers of the present utility model (10,10 ') its truck inlet orifice (23 that is in separately suitable for reading, 23 ') below, its end opening is right after throttling valve (8,8 ') and seal valve (7,7 ') communicate with center batch can (6) storage end, not only the little height in light weight of size is short, and its inner chamber is stored charge, does not have simple height for guide.
2. the hypocone of center batch can (6) is over against the blast furnace medullary ray, its discharge gate is right after down corrugated tube (5), following throttling valve (4) and lower seal valve (3) and communicates with distributor transmission case (2), there is not simple material guiding hopper, and PW and pan furnace top (United States Patent (USP) № 4,074,816) needs huge guide discharge funnel, so that the discharging of will setovering imports the center trunnion, this not only makes the materials flow that enters the center trunnion produce segregation and skewness, and needs very big space and height.
Center batch can (6) top is roomy circular section, and two receiving openings (also available 3～4 receiving openings during charge hoisting by belt conveyer) can make full use of its volume, therefore makes the center batch can highly shorter under the situation that guarantees enough useful volumes.
3. the inside funnel (22) of three corrugated tubes (5,9,9 ') is the continuity of hopper (10,10 ') and center batch can (6) inner conical surface, belongs to the material stock volume together, does not account for extra height.
4. three throttling valve (4,8,8 ') adopt biparting shape gate (21), and are highly short in light weight.
5. three seal valves (7,7 ', 3) are highly short in light weight, and lower seal valve gap (25) enters when opening in the cavity (19) of distributor transmission case (2), does not need extra height; Therefore two upper sealing valves lid is in (6) two cervical vertebra portions of center batch can when opening charge level does not account for extra height than downside (20) yet.
Feature of the present utility model also is the funnel (22 of three cover corrugated tube, throttling valve and seal valves, 17,18) streamlined structure of employing para-curve plane of rotation is compared with common conical hopper, under same circulation bore, have bigger discharge ability, and difficult formation gets stuck.
Advantage of the present utility model is except all even height of cloth is short, and help identical with seal valve (3,7,7 ') structure of three cover corrugated tube (5,9,9 ') throttling valve (4,8,8 ') makes.For the different blast furnace of volume, the device just of Fig. 1 change hopper (10,10 ') and the volume of center batch can (6) and the length of distributor chute (1), all the other equipment can be constant.The maintenance of equipment of Fig. 1 is convenient, and throttling valve, seal valve and corrugated tube in light weight can be taken the flange bolt integral replacing apart, also can open hand-hole (24,24 ') when replacing with the silica gel circle of seal valve (7,7 ') and carry out.
Original structures of furnace roof when the short largest benefit of bringing of the loading device height of Fig. 1 is also that old blast furnace adopts this new technology, upcast of deriving as furnace roof steelframe, each layer platform, furnace roof crane, blast furnace gas and downtake etc. still can keep, the material loading skew bridge can not raised yet, thereby brings huge economic benefit.
Embodiment
Charging equipment of the present invention has been designed multiple series product, wherein the technical feature of 620 types such as following table:
620 type loading device technical feature tables
| Title | Quantity | | Weight | |
| Hopper | ||||
| 2 | Useful volume | 3M 3 | 2×6t | |
| The center batch can | 1 | Useful volume | 15M 3 | 18t |
| Upper and lower |
3 | The funnel latus rectum | 0.75 |
3×0.36t |
| Upper and |
3 | The funnel latus rectum | 0.65 |
3×2.5t |
| Upper and |
3 | The funnel latus rectum | 0.65 |
3×2.5t |
| The polycyclic distributing chute | 1 | Wide * long | 0.9m×2m | 4t |
| The water-cooled transmission case | 1 | Diameter | φ2m | 20t |
| Equipment total height and gross weight | 12m | 70t | ||
This loading device has been implemented to go into operation on certain factory's 620 type blast furnace.
Claims (4)
1, a kind of charging equipment is characterized in that this equipment is by the series connection of following part and form: at least two hoppers arranged side by side (10,10 '); The last corrugated tube (9,9 ') of respective numbers, last throttling valve (8,8 ') and upper sealing valve (7,7 '); A center batch can (6); One cover is corrugated tube (5), following throttling valve (4) and lower seal valve (3) down; Hang with the distributor transmission case (2) of distributor chute (1).
2, equipment according to claim 1 is characterized in that corrugated tube (5,9,9 '), throttling valve (4,8,8 ') and seal valve (3,7,7 ') all adopt streamlined funnel (22,17,18).
3, equipment according to claim 1 is characterized in that upper and lower throttling valve (4,8,8 ') adopts biparting shape gate (21).
4, equipment according to claim 1, it is characterized in that distributor transmission case (2) has holds lower seal valve gap (25) required cavity (19) when opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202324 CN2034584U (en) | 1988-04-01 | 1988-04-01 | Blast furnace with appliance for distributing burden |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202324 CN2034584U (en) | 1988-04-01 | 1988-04-01 | Blast furnace with appliance for distributing burden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034584U true CN2034584U (en) | 1989-03-22 |
Family
ID=4837349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88202324 Withdrawn CN2034584U (en) | 1988-04-01 | 1988-04-01 | Blast furnace with appliance for distributing burden |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034584U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352419A (en) * | 2011-09-28 | 2012-02-15 | 中冶南方工程技术有限公司 | Compact valve box device for rotating upper sealing valve of blast furnace |
| CN102417943A (en) * | 2010-04-16 | 2012-04-18 | 北京首钢机电有限公司 | Bellless feeding device |
| CN101709340B (en) * | 2009-10-30 | 2012-05-09 | 宝钢集团新疆八一钢铁有限公司 | Single-bucket serial-bucket charging method applied to bell-free blast furnaces |
| CN102134622B (en) * | 2010-01-26 | 2012-10-10 | 沈阳东方钢铁有限公司 | Bell-less blast furnace distributing device |
| CN102889788A (en) * | 2012-10-16 | 2013-01-23 | 连云港市东茂矿业有限公司 | Automatic quantitative binning device for reduction jar |
| CN106350628A (en) * | 2016-11-14 | 2017-01-25 | 上海宝匀机电自动化设备有限公司 | Detection device for material blocking of charging bucket at top of blast furnace and detection method |
| CN109593902A (en) * | 2018-12-03 | 2019-04-09 | 江苏省沙钢钢铁研究院有限公司 | A kind of big canister mixing cloth system of blast furnace roof and method |
| CN109628675A (en) * | 2018-12-03 | 2019-04-16 | 江苏省沙钢钢铁研究院有限公司 | A kind of blast furnace roof string and tank cloth system and method |
| CN115872163A (en) * | 2023-02-28 | 2023-03-31 | 山东三牛机械集团股份有限公司 | Dry air circulation pneumatic conveying system of ammonium chloride powder |
-
1988
- 1988-04-01 CN CN 88202324 patent/CN2034584U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709340B (en) * | 2009-10-30 | 2012-05-09 | 宝钢集团新疆八一钢铁有限公司 | Single-bucket serial-bucket charging method applied to bell-free blast furnaces |
| CN102134622B (en) * | 2010-01-26 | 2012-10-10 | 沈阳东方钢铁有限公司 | Bell-less blast furnace distributing device |
| CN102417943A (en) * | 2010-04-16 | 2012-04-18 | 北京首钢机电有限公司 | Bellless feeding device |
| CN102352419A (en) * | 2011-09-28 | 2012-02-15 | 中冶南方工程技术有限公司 | Compact valve box device for rotating upper sealing valve of blast furnace |
| CN102889788A (en) * | 2012-10-16 | 2013-01-23 | 连云港市东茂矿业有限公司 | Automatic quantitative binning device for reduction jar |
| CN106350628A (en) * | 2016-11-14 | 2017-01-25 | 上海宝匀机电自动化设备有限公司 | Detection device for material blocking of charging bucket at top of blast furnace and detection method |
| CN106350628B (en) * | 2016-11-14 | 2018-10-26 | 上海宝匀机电自动化设备有限公司 | A kind of furnace top material tank for blast furnace blocked-material detecting device and detection method |
| CN109593902A (en) * | 2018-12-03 | 2019-04-09 | 江苏省沙钢钢铁研究院有限公司 | A kind of big canister mixing cloth system of blast furnace roof and method |
| CN109628675A (en) * | 2018-12-03 | 2019-04-16 | 江苏省沙钢钢铁研究院有限公司 | A kind of blast furnace roof string and tank cloth system and method |
| CN115872163A (en) * | 2023-02-28 | 2023-03-31 | 山东三牛机械集团股份有限公司 | Dry air circulation pneumatic conveying system of ammonium chloride powder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CP01 | Change in the name or title of a patent holder |
Patentee after: University of Science and Technology Beijing Patentee before: Beijing College of Iron and Steel Technology |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: BEIJING IRON AND STEEL INSTITUTE TO: BEIJING UNIV. OF SCIENCE AND TECHNOLOGY |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |