US488399A - Wood-pulp drainer - Google Patents
Wood-pulp drainer Download PDFInfo
- Publication number
- US488399A US488399A US488399DA US488399A US 488399 A US488399 A US 488399A US 488399D A US488399D A US 488399DA US 488399 A US488399 A US 488399A
- Authority
- US
- United States
- Prior art keywords
- pulp
- drainer
- wood
- cylinder
- screen
- 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
- 229920001131 Pulp (paper) Polymers 0.000 title description 6
- 239000000463 material Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001914 filtration Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 241000845077 Iare Species 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F7/00—Washing devices adapted to be used independently of any particular receptacle, e.g. for removable mounting on wash-tubs, bath-tubs, or the like
Definitions
- Our invention relates to certain improvements in the construction of revolving drainer filters used in the treatment of Wood pulp for the manufacture of paper, the paper pulp being received by this filter from the digester.
- the object of our invention is to'construct a lter so that it acts as a revolving drainer and Washer as more fully described herein after.
- Figure l is a longitudinal section of our improved lter; Fig. 2,isatransverse section of the same on the line l-2, Fig. l; and Fig. 3, is an enlarged sectional View of a detail of construction.
- A is a closed cylindrical casing made of sheet metal or wood, having heads a a, and secured to the periphery of the casing are annular rails A', adapted to travel on revolving Wheels c c, mounted on shafts C C', the shaft C being driven in any suitable manner, in the present instance through the medium of the pulley P or by a link belt passing over a sprocket wheel 0'; belts or gearing may be used according to circumstances.
- FIG. B is awater inlet pipe extending nearly the full length of the cylinder A, being open at its inner end and being suitably perforated on one half of its circumference as shown, the perforations being made sufficiently large to permit the passage of Water.
- screen D On one half of the cylinder is asemi-cylindrical screen D, shown clearly in Fig. 3, made up in the present instance of a series of sections d secured together by T-beams d and intermediate strips cl2 tending to chanen and support the screen section, the opposite ends of which are closed by semi-circular 4filling strips d3 near the ends of the cylinder, and the opposite edges of the screen are secured to longitudinal filling strips, as shown in Fig. 2, in
- the receiving box E is provided with suitable valves g, g, by which the liquid may be drawn from the filter.
- suitable valves g, g by which the liquid may be drawn from the filter.
- pressure valves hto which maybe coupled air or steam pressure pipe to force or accelerate the filtration when necessary.
- the material to be treated is supplied to the cylinder through the inlet pipe G.
- H I-I are blades secured at the center of the machine to straps 'L' passing around the pipe B and extending to the casing to Which they are secured. These blades serve to hold the pipe B in position and also act as stirring or cutting blades to agitate the material under treatment.
- the operation of the machine is as followsz-The pulp to be treated is directed through the inlet opening G into the machine, standing still With the collecting -box E down and While the black liquor is draining off.
- the Wash Water is then passed in through the perforated pipe B distributing itself throughout the entire length of the pipe and passing through the perforations therein.
- the cylinder is revolved through the medium of the driven shaft C and the blades H and I thoroughly agitating the material. After a sufficient length of time, the machine is stopped with the screen portion lowermost and the drain Water drains off from the pulp, passing through the screen into the box E and from there being drawn from the machine.
- Air or steam under pressure may be supplied through one of the pipes h to aid in the filtration, and after complete drainage fresh water can be turned into the cylinder, the cylinder is again revolved and the filtering process again repeated, until the pulp is in condition to be further treated in a subsequent machine, or air may be admitted through the pipe G,
- a iilter comprising a closed cylindrical chamber, a semi-cylindrical screen therein, and forming between the casing and the screen a closed chamber e, a receiving box E, below said chamber e and communicating therewith, ⁇ outlet pipes leadingfromsaid receiving
Description
(No Model.)
G.; M. NBWHALL & o. L. HAMILTON.
WUO-D PULP DRAINBR.
M m o@ N www nrrnn i Srn'rns GEORGE M. NEWHALL AND CHARLES L. HAMILTON, OF PHILADELPHIA, PENNSYLVANIA.
WOOD=PULP DRAINER.
SPECIFICATION forming part 0f Letters Patent No. 488,399, dated December 20, 1892.
Application tiled January 2l, 1890. Serial No. 337,637. (No model.) v
To all whom it may concern,.-
Be it known that we, GEORGE M. NEWHALL and CHARLES L. HAMILTON, both citizens of the TJnited States, and residents of Philadelphia, Pennsylvania, have invented certain Improvements in VVood-Pulp Drainers, of which the following is a specification.
Our invention relates to certain improvements in the construction of revolving drainer filters used in the treatment of Wood pulp for the manufacture of paper, the paper pulp being received by this filter from the digester.
The object of our invention is to'construct a lter so that it acts as a revolving drainer and Washer as more fully described herein after.
In the accompanying drawingszFigure l, is a longitudinal section of our improved lter; Fig. 2,isatransverse section of the same on the line l-2, Fig. l; and Fig. 3, is an enlarged sectional View of a detail of construction.
A is a closed cylindrical casing made of sheet metal or wood, having heads a a, and secured to the periphery of the casing are annular rails A', adapted to travel on revolving Wheels c c, mounted on shafts C C', the shaft C being driven in any suitable manner, in the present instance through the medium of the pulley P or by a link belt passing over a sprocket wheel 0'; belts or gearing may be used according to circumstances.
B is awater inlet pipe extending nearly the full length of the cylinder A, being open at its inner end and being suitably perforated on one half of its circumference as shown, the perforations being made sufficiently large to permit the passage of Water. On one half of the cylinder is asemi-cylindrical screen D, shown clearly in Fig. 3, made up in the present instance of a series of sections d secured together by T-beams d and intermediate strips cl2 tending to stiften and support the screen section, the opposite ends of which are closed by semi-circular 4filling strips d3 near the ends of the cylinder, and the opposite edges of the screen are secured to longitudinal filling strips, as shown in Fig. 2, in
- order to form a closed chamber between the screen and the casing. These screen sections are finely perforated for the purpose .of separating the pulp from the liquor, the liquor passing through the perforationsinto acharnber e (Fig. 2) between the screen and the casing, and from this chamber passing through openings f into the longitudinal receiving box E below the casing.
The receiving box E is provided with suitable valves g, g, by which the liquid may be drawn from the filter. Diametrically opposite the box E are one or more pressure valves hto which maybe coupled air or steam pressure pipe to force or accelerate the filtration when necessary.
The material to be treated is supplied to the cylinder through the inlet pipe G.
H I-I are blades secured at the center of the machine to straps 'L' passing around the pipe B and extending to the casing to Which they are secured. These blades serve to hold the pipe B in position and also act as stirring or cutting blades to agitate the material under treatment. y
I Iare radial lifting and mixing blades running longitudinally inthe cylinder, and serve to make a uniform mixture of solutions and pulp after each drainage.
The operation of the machine is as followsz-The pulp to be treated is directed through the inlet opening G into the machine, standing still With the collecting -box E down and While the black liquor is draining off. The Wash Water is then passed in through the perforated pipe B distributing itself throughout the entire length of the pipe and passing through the perforations therein. The cylinder is revolved through the medium of the driven shaft C and the blades H and I thoroughly agitating the material. After a sufficient length of time, the machine is stopped with the screen portion lowermost and the drain Water drains off from the pulp, passing through the screen into the box E and from there being drawn from the machine. Air or steam under pressure may be supplied through one of the pipes h to aid in the filtration, and after complete drainage fresh water can be turned into the cylinder, the cylinder is again revolved and the filtering process again repeated, until the pulp is in condition to be further treated in a subsequent machine, or air may be admitted through the pipe G,
IOO
which, in such case, would be provided with a stuffing box, fittings and valve, to accommodate two separate supply pipes. The blades H being secured at their inner ends to the pipe B by straps or rings t', tend to support the pipe B in the cylinder and keep i-t central therein. being diluted for the purpose, is Withdrawn by a cock or valveg' from the cylinder. Should it be desirable to remove the pulp in a semidry state, the same may be removed through the man hole M.
We claim as our inventionz` l. A iilter comprising a closed cylindrical chamber, a semi-cylindrical screen therein, and forming between the casing and the screen a closed chamber e, a receiving box E, below said chamber e and communicating therewith, `outlet pipes leadingfromsaid receiving The fully Washed pulp, afterl box, a perforated pipe extending from one end `of the cylinder to or nearly to the opposite end thereof, blades H extending from said perforated pipe to the casing and inlet and outlet for the material to be treated, substantially as specified.
2. The combination of the screen sections d, the bars d connecting said sections and intermediate strengthening bars d2 between said connecting bars, substantially as specifled.
In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.
GEORGE M. NEWHALL. CHARLES L. HAMILTON. Vitnesses:
H. F. REARDON, Jos. H. KLEIN.
Publications (1)
Publication Number | Publication Date |
---|---|
US488399A true US488399A (en) | 1892-12-20 |
Family
ID=2557245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US488399D Expired - Lifetime US488399A (en) | Wood-pulp drainer |
Country Status (1)
Country | Link |
---|---|
US (1) | US488399A (en) |
-
0
- US US488399D patent/US488399A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3437208A (en) | Apparatus for dynamic filtration of liquids | |
US2593707A (en) | Filter | |
US2186836A (en) | Process and apparatus for treating materials in centrifugals | |
US5221434A (en) | Method for treating fiber suspensions | |
US488399A (en) | Wood-pulp drainer | |
US2037840A (en) | Continuous centrifugal washing and dewatering machine | |
US539055A (en) | Apparatus | |
US649152A (en) | Apparatus for washing fibrous materials used in paper-making. | |
US5538632A (en) | Multiple filter dynamic washer | |
US3659714A (en) | Liquid waste treatment apparatus | |
US1103725A (en) | Wood-pulp thickener and save-all. | |
US5203968A (en) | Apparatus for treating fiber suspensions having rotatable liquid permeable treatment ducts | |
US1129419A (en) | Filter-pulp-washing machine. | |
US713759A (en) | Filter and filtering system. | |
US4239626A (en) | Filter for removing fines | |
US2212168A (en) | Rotary drum filter | |
US348534A (en) | Heney eoeskb | |
US2267671A (en) | Fiber treating apparatus | |
US639791A (en) | Digester. | |
US777316A (en) | Paper-stock filter. | |
US1716898A (en) | Pulp-preparing apparatus | |
US1138634A (en) | Process for separating detritus from liquids. | |
US196965A (en) | Improvement in apparatus for preparing paper-pulp | |
US2430135A (en) | Pulp washer | |
US415191A (en) | Island |