US178254A - Improvement in dust-traps for smelting-furnaces - Google Patents
Improvement in dust-traps for smelting-furnaces Download PDFInfo
- Publication number
- US178254A US178254A US178254DA US178254A US 178254 A US178254 A US 178254A US 178254D A US178254D A US 178254DA US 178254 A US178254 A US 178254A
- Authority
- US
- United States
- Prior art keywords
- dust
- smelting
- pipe
- furnaces
- improvement
- 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.)
- Expired - Lifetime
Links
- 238000003723 Smelting Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000001174 ascending Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000001364 Upper Extremity Anatomy 0.000 description 2
- 230000001154 acute Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
Definitions
- My invention relates to smoke stacks of smelting or other furnaces; and consists in an angular chamber constructed with deflecting sides, interposed between the furnace and the exit-pipe, in combination with such exit-pipe extending slightly down into said chamber, whereby waste products of the furnace are arrested and again subjected to its action.
- the drawing represents a vertical cross-section of my improvement as attached 'to any furnace, in which A A are the walls of the furnace, in which seats the arresting-chamber B ofthe hexagonal form, and having its lower sides b b inclining upward and outward at any suitable angular degree till they meet the upper sides I) b projecting upward and inward in a degree approximately greater than that of said lower sides, and forming therewith an obtuse angle, such as may be desirable.
- O is the feed-hole, through which the ore to be subjected to the smelting treatment is introduced, and is situated preferably in the central lower portion of the chamber B.
- the opening of the furnace into this chamber may be of any desired size, as is thought suitable, while the upper extremities of the sides I) b engage with the short exit-pipe D in such a connection as to firmly support it in position.
- This exit-pipe leads down into the chamber a slight distance, approximately eighteen inches, more or less, sufficient to form on either side of it, as thus introduced, an acute angle with the'upper sides of such chamber. It runs upward from the collar so as to give capable supportto any final pipe, E, Which may be attached thereto, and which furnishes draft.'
- This last-named pipe may slide within the former pipe D, or by an y suitable mechanism find engagement therewith.
- My object is to obviate the loss of metallic material thus caused, and to provide a means whereby all such dust and partially consumed matter may be arrested in their transit and returned anew to the process of the furnace.
- exit-pipe D extend- 1 ing down into-the chamber for but a slight distance, has this decided advantage-the products of combustion have to traverse a much greater space than if said pipe were extended far down. Also, dead air accumulates in the angles on either side of the pipe in its conjunction with the upper deflecting walls of the chamber, so that as the draft arisesfrom out of the furnace it strikes against the same, and is repelled as though by a foreign body. The volatile products are thus obliged to take the only open course and escape through the smoke-pipe.
- the smoke-stack E is provided atits mouth with an annular deflecting piece, 6, which serves again to interrupt the ascending particles and cast them down a second time; so
Description
T. J. TAYLOR. DUST-TRAPS FOR SMELTING'FURNACESQ Nq.178,254 Patented June 6. 1876.
.dtz m-ney N'PETERS, PPOTD-LITHDGRAPHER. WASHINGTON, D C:
UNITE STATES;
PATENT Qrr'ronu THOMAS JEFFERSON TAYLOR, OF EUREKA, NEVADA.
IMPROVEMENT IN DUST-TRAPS FOR SMELTlNG-FURNACES.
Specification forming part of Letters Patent No. [78,254, dated June 6, 1876; application filed March 29, 1876. i
To all whom it may concern new anduseful Improvements in Smoke- Stacks for Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being bad to the accompanying drawings, which form part of this specification. 7
My invention relates to smoke stacks of smelting or other furnaces; and consists in an angular chamber constructed with deflecting sides, interposed between the furnace and the exit-pipe, in combination with such exit-pipe extending slightly down into said chamber, whereby waste products of the furnace are arrested and again subjected to its action.
The drawing represents a vertical cross-section of my improvement as attached 'to any furnace, in which A A are the walls of the furnace, in which seats the arresting-chamber B ofthe hexagonal form, and having its lower sides b b inclining upward and outward at any suitable angular degree till they meet the upper sides I) b projecting upward and inward in a degree approximately greater than that of said lower sides, and forming therewith an obtuse angle, such as may be desirable.
O is the feed-hole, through which the ore to be subjected to the smelting treatment is introduced, and is situated preferably in the central lower portion of the chamber B.
The opening of the furnace into this chamber may be of any desired size, as is thought suitable, while the upper extremities of the sides I) b engage with the short exit-pipe D in such a connection as to firmly support it in position. This exit-pipe leads down into the chamber a slight distance, approximately eighteen inches, more or less, sufficient to form on either side of it, as thus introduced, an acute angle with the'upper sides of such chamber. It runs upward from the collar so as to give capable supportto any final pipe, E, Which may be attached thereto, and which furnishes draft.' This last-named pipe may slide within the former pipe D, or by an y suitable mechanism find engagement therewith.
The operation of the foregoing is at once apparent. Any furnace being equipped with such a smoke-stack, and in blast, the products of combustion, both by reason of their comparative lightness and the ascending draft, are carried upward from out of the furnace, and have a strong tendency to escape. So, also, much of the more volatile substa:nce,dust, &c., which is not as yet consumed, oronly partially under the action of the flame, but valuable in its composition, as containing metal which is not treated, is thus hurried from out. of the smelting. process alongwith this current. In this way much subject-matter for the action of the furnace is taken therefrom and prematurely drafted into the smoke-stack.
My object is to obviate the loss of metallic material thus caused, and to provide a means whereby all such dust and partially consumed matter may be arrested in their transit and returned anew to the process of the furnace.
It will be observed that, by the intervention of my improvement, all such otherwise waste products are in their flight introduced into an enlarged chamber Where the draft is of necessity less direct, and, following such conformation, the current becomes diffused and indefinite in its progress.
The gases, spreading out laterally and horizontally as they flow up either lower side I) b, come in contact with the converging upper walls b b, and thereby suffer an opposition, resistance, and deflection, which react strongly upon all the dust, 850., in their current; so much so that the latter-s gravity overcomes the upward tendency, and all such matter falls back and is saved from final escape and Waste.
The construction of the exit-pipe D, extend- 1 ing down into-the chamber for but a slight distance, has this decided advantage-the products of combustion have to traverse a much greater space than if said pipe were extended far down. Also, dead air accumulates in the angles on either side of the pipe in its conjunction with the upper deflecting walls of the chamber, so that as the draft arisesfrom out of the furnace it strikes against the same, and is repelled as though by a foreign body. The volatile products are thus obliged to take the only open course and escape through the smoke-pipe.
The smoke-stack E is provided atits mouth with an annular deflecting piece, 6, which serves again to interrupt the ascending particles and cast them down a second time; so
that the purpose of my arresting-chamber is supplemen ted=by such constructed smoke-stack Having fully described my invention, what I claim, and desire to secure 'by Letters Patent,
The combination of the arresting-chamber B,-short smoke-pipe D, and final-exit pipe E, the latter provided with the arresting-flange e, substantially as and for the purpose described.
In testimony that I claim the foregoing I have hereunto set my hand this 20th day of v fMarch 1876.
THOMAS J. TAYLOR.
Witnesses:
A...D. RocK,
F. H. HARMON.
Publications (1)
Publication Number | Publication Date |
---|---|
US178254A true US178254A (en) | 1876-06-06 |
Family
ID=2247661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US178254D Expired - Lifetime US178254A (en) | Improvement in dust-traps for smelting-furnaces |
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- US US178254D patent/US178254A/en not_active Expired - Lifetime
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