US944528A - Apparatus for cleaning filter-beds. - Google Patents
Apparatus for cleaning filter-beds. Download PDFInfo
- Publication number
- US944528A US944528A US44353908A US1908443539A US944528A US 944528 A US944528 A US 944528A US 44353908 A US44353908 A US 44353908A US 1908443539 A US1908443539 A US 1908443539A US 944528 A US944528 A US 944528A
- Authority
- US
- United States
- Prior art keywords
- pipes
- sand
- beds
- filter
- flushing
- 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
- 238000004140 cleaning Methods 0.000 title description 6
- 239000004576 sand Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000011010 flushing procedure Methods 0.000 description 12
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/20—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
- B01D24/205—Downward filtration without specifications about the filter material supporting means
Definitions
- This invention relates to an improved ap paatus for use in cleaning the sand of filter be s.
- Figure 1 is a plan view; Fig. 2, a cross section; and Fig. 3, a longitudinal section of the apparatus.
- the flushing pipes a and b lie at equal distances apart. Apertures 0 are formed on both sides of the pipes in a horizontal plane drawn through the axes of the pipes; the outermost pipes lying along the walls are perforated on one side only.
- the flushing pipes are held fast exactly in a horizontal position by bearings in the inclosing walls and by supports S.
- the unfiltered water is admitted in any suitable way to the filter and collects as filtered water in the longitudinal channels 7c (Fig. 2), which are interconnected with cross passages, so that the filtered water may be carried o through the collecting pipe c (Figs. 1 and 3).
- overflow gutters f (Figs. l and 2) are provided along the walls of the filter, which are connected by overflow pipes r/ with discharge pipes h (Figs. 1 and 2), which are adapted to be shut off'.
- the surface of the sand of the lter is to be cleaned and any filter film deposited thereon removed, the water level is first lowered in the filter, so that the fiushing pipes stand at a small distance below the level, the said pipes being normally at the upper surface of the sand.
- the height of the upper edges of the overflow gutters above the horizontal surface of the filtering sand must be selected a small distance above the Hush pipes. Then water or air is forced in through the systems of flushing pipes a and Z) alternately until the upper filter layers of sand have reached the desired degree of purity.
- the flushing water in rising carries up the impurities and removes them Specification of Letters Patent.
- the sand is thrown to and fro from one flushing pipe to the other until it has reached the desired degree of purity.
- the level of the water in the filter gradually rises and after the stoppage ofk the flushing through the system of pipes, pure water is admitted through the discharge channels 7c, until the dirty water located above the surface of the sand has run off through the overflow gutters f and the discharge pipes h.
- the pipes are arranged parallel with the sides, if the purifying of thesand is to be effected in vessels of a rectilinear shape.
- I declare that what I claim is Apparatus for cleaning filter beds comprising separate headers, two sets of flushing pipes connected to said headers, and being alternately operable thereby, provided with uniform lateral perforations at opposite sides only, approximately in the horizontal plane of the sand of the filter bed, and adapted to throw the sand into alternate mounds and hollows, and means for supplying cleansing fiuid alternately to said two sets of pipes, from the separate headers, substantially as described and shown.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Description
Z. VONYWESSELY.
A APPARATUS POR CLEANING FILTER BEDS.
APPLIUATION FILED 1171114. 190s.
944,5, Patented Dec. 28, 1909.
z SHEETS-SHEET' 1.
I'IL
` Z. VON WBSSBLY. APPARATUS POB CLEANING FILTER BEDS. APPLICATION FILED JULY 14. 190s.
2 SHEETS-SHEET 2 Of-Zwn/Q WW W55 Patented Dec. 28, i909.
' UNTED STATES PATENT OFFTCE.
ZDENKO VON WESSELY, PRAGUE, AUSTRIA-HUNGARY.
APPARATUS FOR CLEANING FILTER-BEDS.
atenas.
I0 all whom t may concern:
Be it known that I, ZDENKO voN VVEssELY, subj ect of the Emperor of Austria-Hungary, residing at Prague, in the Empire of Austria-Hungary, have invented certain new and useful Improvements in Apparatus for Cleaning Filter-Beds, for which application has been made in Germany, dated 25th February, 1907.
This invention relates to an improved ap paatus for use in cleaning the sand of filter be s.
The apparatus is shown in the accompanying drawings in which Figure 1 is a plan view; Fig. 2, a cross section; and Fig. 3, a longitudinal section of the apparatus.
The flushing pipes a and b lie at equal distances apart. Apertures 0 are formed on both sides of the pipes in a horizontal plane drawn through the axes of the pipes; the outermost pipes lying along the walls are perforated on one side only. The flushing pipes are held fast exactly in a horizontal position by bearings in the inclosing walls and by supports S. The unfiltered water is admitted in any suitable way to the filter and collects as filtered water in the longitudinal channels 7c (Fig. 2), which are interconnected with cross passages, so that the filtered water may be carried o through the collecting pipe c (Figs. 1 and 3). For carrying off the dirty water, overflow gutters f (Figs. l and 2) are provided along the walls of the filter, which are connected by overflow pipes r/ with discharge pipes h (Figs. 1 and 2), which are adapted to be shut off'.
VJhen the surface of the sand of the lter is to be cleaned and any filter film deposited thereon removed, the water level is first lowered in the filter, so that the fiushing pipes stand at a small distance below the level, the said pipes being normally at the upper surface of the sand. The height of the upper edges of the overflow gutters above the horizontal surface of the filtering sand must be selected a small distance above the Hush pipes. Then water or air is forced in through the systems of flushing pipes a and Z) alternately until the upper filter layers of sand have reached the desired degree of purity. The flushing water in rising carries up the impurities and removes them Specification of Letters Patent.
Application flied July 14, 1908.
Patented Deo. 28, 1909.
seran No. 443,539.
from the filter in flowing over through the gutters 7.
It is recommended that the last flushing should be made with the flushing pipes b. The water or air emerging, for instance, from the pipes a throws the sand situated there laterally, while a hollowing out takes place beneath the pipes a by the hydraulic acticn of the movement of the water produced by the action of the emergent jets. The ejected quantity of sand lodges on the adjacent pipes Z), which are not in operation. Now if after shutting off the flushing pipes ci, the flushing pipes Z) be set in operation, the sand deposited over these pipes Z) (sand ridges) will be thrown back into the sand hollows previously formed. Thus by the alternate discharge of water or air under pressure from the two series of pipes, the sand is thrown to and fro from one flushing pipe to the other until it has reached the desired degree of purity. During the flushing, the level of the water in the filter gradually rises and after the stoppage ofk the flushing through the system of pipes, pure water is admitted through the discharge channels 7c, until the dirty water located above the surface of the sand has run off through the overflow gutters f and the discharge pipes h. The pipes are arranged parallel with the sides, if the purifying of thesand is to be effected in vessels of a rectilinear shape.
I declare that what I claim is Apparatus for cleaning filter beds comprising separate headers, two sets of flushing pipes connected to said headers, and being alternately operable thereby, provided with uniform lateral perforations at opposite sides only, approximately in the horizontal plane of the sand of the filter bed, and adapted to throw the sand into alternate mounds and hollows, and means for supplying cleansing fiuid alternately to said two sets of pipes, from the separate headers, substantially as described and shown.
In witness whereof, I have hereunto signed my name this 30th day of June 1908,
in the presence of two subscribing witnesses.
ZDENKO VON WESSELY.
Witnesses ROBERT V. HEINGARTNER, AUGUST FUGGER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US44353908A US944528A (en) | 1908-07-14 | 1908-07-14 | Apparatus for cleaning filter-beds. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US44353908A US944528A (en) | 1908-07-14 | 1908-07-14 | Apparatus for cleaning filter-beds. |
Publications (1)
Publication Number | Publication Date |
---|---|
US944528A true US944528A (en) | 1909-12-28 |
Family
ID=3012950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US44353908A Expired - Lifetime US944528A (en) | 1908-07-14 | 1908-07-14 | Apparatus for cleaning filter-beds. |
Country Status (1)
Country | Link |
---|---|
US (1) | US944528A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444682A (en) * | 1945-03-30 | 1948-07-06 | Luther L Smith | Overflow control for filter beds |
-
1908
- 1908-07-14 US US44353908A patent/US944528A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444682A (en) * | 1945-03-30 | 1948-07-06 | Luther L Smith | Overflow control for filter beds |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2194071A (en) | Apparatus for washing and flushing filtering or similar materials | |
US794631A (en) | Filtering apparatus. | |
US944528A (en) | Apparatus for cleaning filter-beds. | |
JP6544525B2 (en) | Backwashing device moving type filtration device, backwashing device, backwashing method | |
JPH04500922A (en) | Filtration procedure | |
US607155A (en) | Filter | |
US3476248A (en) | Suction backwash means for a low pressure,multiple element,filter assembly | |
US1259032A (en) | Filter. | |
US1088929A (en) | Filter. | |
US176571A (en) | Improvement in filters and processes for cleaning the same | |
US514531A (en) | williamson | |
US1544617A (en) | Filter construction | |
US564422A (en) | Max dehne | |
US1096868A (en) | Apparatus for cleaning filter-beds. | |
US246003A (en) | Fourths to william unfug | |
US791647A (en) | Filtering system. | |
US564939A (en) | Apparatus for purifying water | |
US575778A (en) | gelston | |
US477727A (en) | Filtering apparatus | |
US409611A (en) | John j | |
US417405A (en) | Barton h | |
US944527A (en) | Method of cleansing filter-beds. | |
US409273A (en) | clayton | |
US800107A (en) | Filter. | |
US577686A (en) | William m |