US514374A - Digester - Google Patents
Digester Download PDFInfo
- Publication number
- US514374A US514374A US514374DA US514374A US 514374 A US514374 A US 514374A US 514374D A US514374D A US 514374DA US 514374 A US514374 A US 514374A
- Authority
- US
- United States
- Prior art keywords
- lining
- lead
- shell
- digester
- sheets
- 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
- 239000011449 brick Substances 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 241000920033 Eugenes Species 0.000 description 2
- 241000183290 Scleropages leichardti Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
Definitions
- the present invention relates to the mode of supporting the lead lining of a boiler or dlgester such as is used in the manufacture of Wood pulp and in various others of the arts.
- the shell of these digesters or boilers is usually constructed of iron or steel, andin order to protectthe metal composing the shell from contact with the acids employed in the various operations for which the vessel is used,
- the present invention seeks to provide the digester with a lead lining which shall be free from the diiculty mentioned; and to this end I propose to mold sheets of lead against the inner face of the shell of the digester and fuse the edges oi' these sheets together so as to form one 4continuous sheet in intimate contact with the shell, and without the use of cement or of rivets for attaching such lining to the shell.
- An interior lining of acid-proof brick built up against the lead lining will operate to protect this latter lining from collapse whenever the digester is blown out.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Description
(No Model.) Y
' -DIGESTM N0. 514,374. l Patentd Feb. 6, 1394.
`Wlfl'a'f-ws2.5
me mman. mnonnnmna conwuv.
vmware". n. a.
UNITED STATES PATENT OFFICE.
EueEn MEUREE, or PALMER, NEW YORK.
DIGESTER.
SPECIFICATION forming part of Letters Patent No. 514,374, dated February 6, 1894.
Application filed December 30, 1892. Serial No. 456,762. (No model.)
To @ZZ whom it may concern.- Be it known that l, EUGEN MEURER, a sub- Ject of the Emperor of Germany, residing at Palmer, in the county of Saratoga and State of New York, have invented a new and useful Improvement in Digesters, of which the following is a correct description, reference being had to the accompanying drawings.
The present invention relates to the mode of supporting the lead lining of a boiler or dlgester such as is used in the manufacture of Wood pulp and in various others of the arts. The shell of these digesters or boilers is usually constructed of iron or steel, andin order to protectthe metal composing the shell from contact with the acids employed in the various operations for which the vessel is used,
itis common to line it with lead. Various modes have been practiced heretofore for securing this lead lining to the inner face of the shell. One method has been to secure the sheets of lead to the metal shell by means of rivets or lugsl By other methods the lead is fastened to the shell by tar or pitch, or by the lead being melted on, or fused directly to the surface of the metal shell, or by the lead being secured to the shell by a cement interposed between the lead and the shell. One difficulty with these modes of securing the lead lining to the shell of the digester is the liability ot' the lining to be detached at points from its fastenings and to buckle and crack by reason of the dierence in the coefficient of expansion between the two metals.
rlhis opens seams .which permit the liquors of the vessel to penetrate into the space-behind the lining and thus reach the metal shell.
The present invention seeks to provide the digester with a lead lining which shall be free from the diiculty mentioned; and to this end I propose to mold sheets of lead against the inner face of the shell of the digester and fuse the edges oi' these sheets together so as to form one 4continuous sheet in intimate contact with the shell, and without the use of cement or of rivets for attaching such lining to the shell. This leaves the lead lining comparatively unaected by the motions of contraction and expansion imparted to the metal shell by changes of temperature. An interior lining of acid-proof brick built up against the lead lining will operate to protect this latter lining from collapse whenever the digester is blown out.
The invention is illustrated in the accompanying drawings, in which- Figure 1 is a vertical section of the digester, only a portion, however, of the brick lining being shown, and Fig. 2 is a horizontal crosssection on line of Fig. l.
The steel shell is represented byA; the lead lining by B; the acid-proof brick by C.
D, E E, and F F represent a framework which is employed in constructing the lining, in the manner hereinafter set forth.
In lining a digester on the plan of my invention, it will be found most convenient to lay the shell upon its side for the purpose of applying the sheets of lead to the inner face thereof, and as the sheets are applied they may be held in place by wood blocks F, which in turn are supported by the braces E, which rest against or are inserted in the central post D. As the sheets are placed in position heat is applied to the edges in contact, sufficient to fuse the edges together, until by this process the entire inner surface of the shell is covered, in close contact, by a seamless sheet of lead. The digester may now be lifted into an upright position and the acidproof blocks or bricks C put in position. ing of brick will, of course, be started at the base of the digester and be built upward; and as this work goes on the blocks F, together with the corresponding props E, will be removed until at last the brick lining will extend over the entire face of the lead lining. This mode of lining a boiler or digester is intended primarily for such as are used in the manufacture of wood pulp, but it is manifest that it will be useful also in those vessels or boilers which are employed in the other arts in which a strong outer shell has to be provided with a lining of lead.
What is claimed as new is- The combination with the outer shell of a pulp digester or similar vessel of a lead lining littcd as a continuons sheet against the inner face of the shell and an inner lining of acid-proof blocks fitted against the lead lining.
EUGEN MEURER. Witnesses:
Roer. F. GAYLORD, ERNEST I-lorKINsoN.
This lin- I IOC
Publications (1)
Publication Number | Publication Date |
---|---|
US514374A true US514374A (en) | 1894-02-06 |
Family
ID=2583183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US514374D Expired - Lifetime US514374A (en) | Digester |
Country Status (1)
Country | Link |
---|---|
US (1) | US514374A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2730426A (en) * | 1951-06-20 | 1956-01-10 | Cellulose Dev Corp Ltd | Treating vegetable fibrous material with chlorine gas |
-
0
- US US514374D patent/US514374A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2730426A (en) * | 1951-06-20 | 1956-01-10 | Cellulose Dev Corp Ltd | Treating vegetable fibrous material with chlorine gas |
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