CN102032799A - Moveable arc smoke cover arranged on port of silver-making converter - Google Patents

Moveable arc smoke cover arranged on port of silver-making converter Download PDF

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Publication number
CN102032799A
CN102032799A CN2009102723678A CN200910272367A CN102032799A CN 102032799 A CN102032799 A CN 102032799A CN 2009102723678 A CN2009102723678 A CN 2009102723678A CN 200910272367 A CN200910272367 A CN 200910272367A CN 102032799 A CN102032799 A CN 102032799A
Authority
CN
China
Prior art keywords
petticoat pipe
plane
silver
cover
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2009102723678A
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Chinese (zh)
Inventor
陈志华
刘爱举
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAYE NONFERROUS METALS GROUP HOLDINGS Co Ltd
Daye Nonferrous Metals Co Ltd
Daye Nonferrous Design and Research Institute Co Ltd
Original Assignee
DAYE NONFERROUS METALS GROUP HOLDINGS Co Ltd
Daye Nonferrous Metals Co Ltd
Daye Nonferrous Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DAYE NONFERROUS METALS GROUP HOLDINGS Co Ltd, Daye Nonferrous Metals Co Ltd, Daye Nonferrous Design and Research Institute Co Ltd filed Critical DAYE NONFERROUS METALS GROUP HOLDINGS Co Ltd
Priority to CN2009102723678A priority Critical patent/CN102032799A/en
Publication of CN102032799A publication Critical patent/CN102032799A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a moveable arc smoke cover arranged on the port of a silver-making converter, which comprises a cover body and transverse and vertical steel pipes for fixing and supporting the cover body and is characterized in that: the lower port plane of the smoke cover is an inclined plane which is low inside and high outside, and the inclined plane is at an acute angle alpha to the horizontal plane; and the outside of the smoke cover is processed into an arc. The moveable arc smoke cover has high sealing performance and no smoke dissipating on the converter port, so that operation environment is greatly improved and economic benefit is increased.

Description

The movable arc petticoat pipe of silver metallurgy converter mouth
(1) technical field: the present invention relates to a kind of flue dust retracting device of smelting industry, specifically is the movable arc petticoat pipe of silver metallurgy converter mouth.
(2) prior art: be used for the baby Bessemer converter fire door petticoat pipe of silver metallurgy industry at present, wherein have one type to be rotary type, promptly petticoat pipe can save back rotation with the rotation that vertical steel pipe is connected along level.Its advantage of such petticoat pipe is very outstanding, concludes to get up to have: the one, and simple in structure, rolled steel dosage is seldom; The 2nd, when fire door is reinforced, petticoat pipe can be removed from fire door, thereby conveniently in stove, be added bagged material with the form of hanging by fire door with hoist ceiling crane, therefore reinforced mechanization degree is very high, and hand labor intensity is corresponding to be reduced greatly.But its shortcoming also is quite tangible, and the petticoat pipe partial design that mainly shows as the fire door top is very unreasonable.According to the situation of present understanding, the petticoat pipe of fire door top is designed to have an area of head dummy mostly, and it is suitable for reading to be circular, and end opening is a square, for preventing the fire door thermal-flame petticoat pipe is burnt out, and the petticoat pipe end opening of generally designing is all far away from fire door.But so just greatly reduce the sealing property of petticoat pipe, the volume of smoke (argentiferous about 20%) that makes fire door come out flies away everywhere, and this has not only wasted national resources, and has worsened the execute-in-place environment, is unfavorable for blast-furnace man's physical and mental health.
(3) summary of the invention: purpose of the present invention just provides a kind of good seal performance, and fire door does not have flue dust and scatters and disappears, and has improved the movable arc petticoat pipe of silver metallurgy converter mouth of operating environment.
The movable arc petticoat pipe of silver metallurgy converter mouth of the present invention, comprise cover body and fixed support cover body anyhow to steel pipe, it is characterized in that: described petticoat pipe bed is outer low and inner high inclined-plane, is an acute angle a between its inclined-plane and the horizontal plane; The lateral surface of petticoat pipe is processed into arc.
Described petticoat pipe end opening inclined-plane is trapezoidal, and its area is 13-16 a times of converter mouth area.
The arc radius R of described petticoat pipe lateral surface is 3800-3900mm.
Have on the lateral surface of described petticoat pipe for skimming, take a sample, observe the working hole of usefulness.
The present invention compares with original petticoat pipe, has the following advantages: the one, and petticoat pipe is pressed close to fire door makes that its air leak rate of air curtain is little, and sealing property is very high, and fire door smokelessly scatters and disappears,, and original petticoat pipe is far away apart from fire door, and air leak rate of air curtain is big, and sealing property is very poor, and fire door has volume of smoke to scatter and disappear.The 2nd, because of the side curved plate being arranged, not only avoided the direct heat radiation of fire door high-temperature flue gas, and avoided the furnace high-temperature silvering solution to spill and hurted sb.'s feelings as " baffle plate ", protected to a great extent therefore that the blast-furnace man's is healthy.And original petticoat pipe is higher because of end opening, and far away from fire door, does not have this effect.
The present invention is through on probation, and the petticoat pipe mouth smokelessly scatters and disappears; Petticoat pipe is not burnt out distortion yet, illustrates that this has good sealing property and resistance to elevated temperatures.
Through preresearch estimates, in a single day the present invention comes into operation, and can be enterprise and has brought remarkable economic efficiency.According to measuring and calculating, the wet silver powder weight average of the every stove input of converter is 5500~6000kg, and the grade of the wet silver powder of every stove is basically identical also.If when adopting original petticoat pipe to gather dust, average every stove cigarette ash output only about 160kg, adopts the average every stove cigarette ash output of the present invention but to reach more than the 210kg.As in converter cigarette ash argentiferous average grade 20%, be equivalent to use the every stove of the present invention can reclaim more than the silver 10kg more, economic benefit is very considerable.
(4) description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 be among Fig. 1 A-A to structural representation.
Among the figure, the 1-cover body, the horizontal steel pipe of 2-, the vertical steel pipe of 3-, 4-petticoat pipe end opening, the 5-lateral surface, the 6-working hole, the 7-interface, the 8-steel wire rope, the 9-converter mouth, 10-rotates joint.
(5) specific embodiment:
Referring to Fig. 1, Fig. 2, the movable arc petticoat pipe of silver metallurgy converter mouth of the present invention, comprise cover body 1 and fixed support cover body anyhow to steel pipe 2,3, described petticoat pipe end opening 4 is outer low and inner high trapezoidal inclined-plane, the 13-16 that its area is generally the converter mouth area doubly; Be an acute angle a between its inclined-plane and the horizontal plane; The lateral surface 5 of petticoat pipe is processed into arc; Its arc radius R is 3800-3900mm, has on the lateral surface of described petticoat pipe for skimming, take a sample, observe the working hole 6 of usefulness.
Install and use identical with existing petticoat pipe, interface 7 with petticoat pipe one side is connected with the front end of horizontal steel pipe 2 earlier, again an end of steel wire rope 8 is fastened at horizontal steel pipe 2 front ends, the other end is fastened in the upper end of vertical steel pipe 3, and making petticoat pipe remain normal operating position above converter mouth 9 also can be in the middle rotation of rotating joint 10 freely.

Claims (4)

1. the movable arc petticoat pipe of silver metallurgy converter mouth, comprise cover body and fixed support cover body anyhow to steel pipe, it is characterized in that: described petticoat pipe bed is outer low and inner high inclined-plane, is an acute angle a between its inclined-plane and the horizontal plane; The lateral surface of petticoat pipe is processed into arc.
2. the movable arc petticoat pipe of silver metallurgy converter mouth according to claim 1 is characterized in that: described petticoat pipe bed is trapezoidal inclined-plane.
3. the movable arc petticoat pipe of silver metallurgy converter mouth according to claim 1 is characterized in that: the arc radius R of described petticoat pipe lateral surface is 3800-3900mm.
4. according to the movable arc petticoat pipe of claim institute's 1 or 3 described silver metallurgy converter mouths, it is characterized in that: have on the lateral surface of described petticoat pipe for skimming, take a sample, observe the working hole of usefulness.
CN2009102723678A 2009-09-30 2009-09-30 Moveable arc smoke cover arranged on port of silver-making converter Pending CN102032799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102723678A CN102032799A (en) 2009-09-30 2009-09-30 Moveable arc smoke cover arranged on port of silver-making converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009102723678A CN102032799A (en) 2009-09-30 2009-09-30 Moveable arc smoke cover arranged on port of silver-making converter

Publications (1)

Publication Number Publication Date
CN102032799A true CN102032799A (en) 2011-04-27

Family

ID=43886013

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009102723678A Pending CN102032799A (en) 2009-09-30 2009-09-30 Moveable arc smoke cover arranged on port of silver-making converter

Country Status (1)

Country Link
CN (1) CN102032799A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104374195A (en) * 2014-11-04 2015-02-25 中国恩菲工程技术有限公司 Furnace hood for rotatable metallurgical furnace and rotatable metallurgical furnace provided with same
CN104457292A (en) * 2014-11-04 2015-03-25 中国恩菲工程技术有限公司 Split-type furnace hood of rotatable metallurgical furnace and rotatable metallurgical furnace provided with same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104374195A (en) * 2014-11-04 2015-02-25 中国恩菲工程技术有限公司 Furnace hood for rotatable metallurgical furnace and rotatable metallurgical furnace provided with same
CN104457292A (en) * 2014-11-04 2015-03-25 中国恩菲工程技术有限公司 Split-type furnace hood of rotatable metallurgical furnace and rotatable metallurgical furnace provided with same
CN104457292B (en) * 2014-11-04 2016-03-30 中国恩菲工程技术有限公司 The split type bonnet of rotatable metallurgical furnace and there is its rotatable metallurgical furnace

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Application publication date: 20110427