US55835A - Improved apparatus for making paper-pulp from wood, straw, and other materials - Google Patents
Improved apparatus for making paper-pulp from wood, straw, and other materials Download PDFInfo
- Publication number
- US55835A US55835A US55835DA US55835A US 55835 A US55835 A US 55835A US 55835D A US55835D A US 55835DA US 55835 A US55835 A US 55835A
- Authority
- US
- United States
- Prior art keywords
- pulp
- straw
- wood
- digester
- materials
- 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
- 239000000463 material Substances 0.000 title description 12
- 239000002023 wood Substances 0.000 title description 12
- 239000010902 straw Substances 0.000 title description 10
- 229920001131 Pulp (paper) Polymers 0.000 title description 6
- 239000007788 liquid Substances 0.000 description 10
- 235000013311 vegetables Nutrition 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004537 pulping Methods 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 210000003414 Extremities Anatomy 0.000 description 2
- 210000003141 Lower Extremity Anatomy 0.000 description 2
- -1 STRAW Substances 0.000 description 2
- 238000000525 cavity enhanced absorption spectroscopy Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000003137 locomotive Effects 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D21C7/14—Means for circulating the lye
Definitions
- my improvement consists in combining with a wood or straw pulp digester a circulating-pump, whereby the digestingliquor is forced to circulate continuously from the bottom or end of the digester onto the top of and through the vegetable fibrous mass to be pulped; and also in combining with such a digester and pump an intermediate coil or equivalent heating apparatus, through which the digesting-liquor shall be forced andheated while in its passage from the bottom or end of the digester onto thetop of the vegetable brous material to be pulped within the digester.
- A represents the pulp-digester, which is a boiler made of strong iron, capable of resisting a pressure of from one hundred to three hundred pounds, say four feet in diameter and twelve feet high. It is furnished with a manhole cover, B, and a perforated diaphragm, O, a central removable cover, D, and a lower perforated diaphragm, E, with a sliding valve.
- the upper diaphragm, C may be omitted, and a rose-head or tubular sprinkler may be attached tothe extremity ofthe tube 6.
- a vertical tubular heater (such as used on locomotives) may be used, or
- the operation of the apparatus is as follows: The wood, straw, or other analogous vegetable brous material is placed in the digester A through the man-hole B, and the digesting-liquid is then fed in. The man-hole is then closed tight and the fire made and the pump under started, causing a rapid circulation of the hot digesting-liquid continually from the bottom onto the top of the material within the digester. Heat is applied to the liquid while passing through the tubes from the bottom to the top of the digester, or it may be applied directly to the bottom of the digester. After the pulping has been completed the valve in the lower diaphragm is opened and the pulp withdrawn to other vats or tanks for bleachmg.
Description
UNITED STATES PATENT OFFICE.
JOHN W. DIXON, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVED APPARATUS FOR MAKING PAPER-PULP FROM WOOD, STRAW, AND OTHER MATERIALS.
Specification forming part of Letters Patent No; 55,835, dated June 26, 1866.
To all whom it may concern.-
Be it known that I, JOHN W. DIXON, of the city of Philadelphia and State of Pennsylvania, have invented a new and useful Apparatus for Making Paper-Pulp from Wood, Straw, or other Analogous Vegetable Fibrous Material; and I do hereby declare that the following is afull and exact description of the same, reference being had to the annexed drawings.
The nature of my improvement consists in combining with a wood or straw pulp digester a circulating-pump, whereby the digestingliquor is forced to circulate continuously from the bottom or end of the digester onto the top of and through the vegetable fibrous mass to be pulped; and also in combining with such a digester and pump an intermediate coil or equivalent heating apparatus, through which the digesting-liquor shall be forced andheated while in its passage from the bottom or end of the digester onto thetop of the vegetable brous material to be pulped within the digester.
A represents the pulp-digester, which is a boiler made of strong iron, capable of resisting a pressure of from one hundred to three hundred pounds, say four feet in diameter and twelve feet high. It is furnished with a manhole cover, B, and a perforated diaphragm, O, a central removable cover, D, and a lower perforated diaphragm, E, with a sliding valve.
F is a conical coil built in a furnace and connecting at its lower extremity with the lower part of the pulp-digester A by means of the tube l 2 3. At 4 arotary or other pump is placed in the course of this tube. rlhe upper part of the coil or heater F is connected by the tube 6 with the interior of the digester A at its top.
The upper diaphragm, C, may be omitted, and a rose-head or tubular sprinkler may be attached tothe extremity ofthe tube 6.
Instead ofthe coil F a vertical tubular heater (such as used on locomotives) may be used, or
no heating apparatus need be placed in the der pressure alone, or with dilute solutions,
heated and under pressure, of 'caustic soda, carbonate of soda, or other liquid capable of digesting or pulping wood, straw, or other Y analogous vegetable brous material pressure.
The operation of the apparatus is as follows: The wood, straw, or other analogous vegetable brous material is placed in the digester A through the man-hole B, and the digesting-liquid is then fed in. The man-hole is then closed tight and the fire made and the pump under started, causing a rapid circulation of the hot digesting-liquid continually from the bottom onto the top of the material within the digester. Heat is applied to the liquid while passing through the tubes from the bottom to the top of the digester, or it may be applied directly to the bottom of the digester. After the pulping has been completed the valve in the lower diaphragm is opened and the pulp withdrawn to other vats or tanks for bleachmg.
Having thus described my improved apparatus, what I claim as my invention, and desire to secure by Letters Patent, is-
lhe combination of the circulating-pump, the -pulp -digester, and. heatingcoil, or its equivalent, for heating the liquid while being made to circulate by the pump.
' JOHN W. DIXON.
Witnesses:
CEAS. H. WHITE, J. E. MCGAULLEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US55835A true US55835A (en) | 1866-06-26 |
Family
ID=2125376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US55835D Expired - Lifetime US55835A (en) | Improved apparatus for making paper-pulp from wood, straw, and other materials |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US55835A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040158516A1 (en) * | 2003-02-11 | 2004-08-12 | Justin Data | Financial advisor messaging in a networked computer system |
-
0
- US US55835D patent/US55835A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040158516A1 (en) * | 2003-02-11 | 2004-08-12 | Justin Data | Financial advisor messaging in a networked computer system |
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