US3616620A - Automatic roller band filter - Google Patents
Automatic roller band filter Download PDFInfo
- Publication number
- US3616620A US3616620A US787692A US3616620DA US3616620A US 3616620 A US3616620 A US 3616620A US 787692 A US787692 A US 787692A US 3616620D A US3616620D A US 3616620DA US 3616620 A US3616620 A US 3616620A
- Authority
- US
- United States
- Prior art keywords
- members
- girder
- filter
- band
- sealing
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/18—Particle separators, e.g. dust precipitators, using filtering belts
Definitions
- This invention relates to an automatic roller band filter assembly, and particularly relates to such filter assemblies comprising an upper portion having a filter band roll of glass fibre or textile freely rotatably mounted therein, and a lower portion having a driven roller (i.e. bobbin) for drawing the filter band off the upper roll across a sealed and filtering intermediate portion of the filter assembly.
- the component comprising the said bottom, intermediate and upper portions are generally assembled on site and built into an opening in a brick wall or in an air ventilation duct.
- an automatic roller band filter assembly comprising an upper portion, a lower portion and an intermediate filter portion; a roll of filter band on a bobbin freely rotatably mounted in the said upper portion; a driven bobbin rotatably mounted in the said lower portion and adapted to receive filter band from the said upper portion after passing through the said intermediate filter portion; a girder-shaped member on each side of the said assembly extending from and attached to the said upper portion and the said lower portion; and a right-angled pressure plate adjustably mounted on each of the said girdershaped members whereby a sealing suruface of the said pressure plates may be moved to and from a sealing posi- 3,616,620 Patented Nov. 2., 1971 tion on the edge of a filter band passing between the said surface and a surface of the said girder-shaped member.
- the simple pressure plates provide a sufliciently tight seal, and also permit a fresh filter band to be easily inserted.
- the said girder-shaped members extending between the said upper and lower portions preferably are hat-shaped sections, and the said sealing plates are preferably attached thereto by butterfly nut and bolts engaged in slots in the said hat-shaped sections to achieve the required sealing adjustment.
- FIG. 1 is a perspective view of a roller band filter assembly
- FIG. 2 is a horizontal cross-section taken substantially along the line 2-2 of FIG. 1 showing the shape of the side members of the said assembly, and
- FIG. 3 is a fragmentary side elevation view of FIG. 2.
- the roller band filter assembly comprises an upper portion 1, an intermediate portion 2 and a lower portion 3.
- a filter band roll (not visible in FIG. 1) is wound on a freely rotatable bobbin (not shown) in the upper portion 1.
- the filter band is wound off the said freely rotatable bobbin and is drawn across the intermediate filtering portion 2 and is finally Wound on a driven bobbin 4 in the lower portion 3.
- the dust removed from the dust-laden air is deposited on clean filter cloth pulled off from the upper bobbin, the dirty filter band being wound onto the bottom bobbin 4.
- the empty upper bobbin is replaced by a full bobbin, and the bobbin 4 at the bottom carrying the dirty cloth is removed.
- a motor 5 with gearing and bearing means 6 is provided which is secured to theframe member 7 of the lower portion 3.
- the other bearing 8 of the driven bobbin 4 is located on the corresponding frame member 9 on the other side of the frame.
- the load-bearing connection between the upper portion 1 which carries the hingeably raisable cover 10 concealing the upper roll and the lower portion 3 consists of two hat-shaped sections 11 forming side members which at each end carry plates 12.
- the term hat-shaped is intended to indicate in a concise manner the special crosssectional form of the girders 11. This form shows best in FIG. 2 where the girders 11 can be seen to be shaped like a mans straw skimmer or boater with an extension.
- the side members are connected to the lower portion 3 and to the upper portion 1 respectively.
- the sections 11 contain slot-shaped holes 13 for the passage therethrough of bolts with wing nuts 14 for attaching right-angled press-on sections 15 to the side members.
- the slot-shaped holes 13 permit the distance 16 between the section 15 and the section 11 to be preadjusted to the thickness of the filter band.
- the edges of the filter band which is not itself shown in the drawings travel in the gaps 16 and are thus kept in sealing contact with the sections 11 of the frame of the roller band filter assembly.
- the gap 16 can be widened by slackening the wing nuts 14 and displacing the section 15 sufiiciently for the fresh filter band to be passed down the intermediate portion 2 with ease.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED37221U DE1981688U (de) | 1967-12-30 | 1967-12-30 | Selbsttaetiges rollbandluftfilter. |
Publications (1)
Publication Number | Publication Date |
---|---|
US3616620A true US3616620A (en) | 1971-11-02 |
Family
ID=7043492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US787692A Expired - Lifetime US3616620A (en) | 1967-12-30 | 1968-12-30 | Automatic roller band filter |
Country Status (3)
Country | Link |
---|---|
US (1) | US3616620A (de) |
DE (1) | DE1981688U (de) |
FR (1) | FR1599405A (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52170373U (de) * | 1976-06-18 | 1977-12-24 | ||
US4627863A (en) * | 1985-07-31 | 1986-12-09 | Max Klein | Filter for air handling equipment |
US4894071A (en) * | 1988-09-27 | 1990-01-16 | Tech Paper, Inc. | Portable air cleaner |
-
1967
- 1967-12-30 DE DED37221U patent/DE1981688U/de not_active Expired
-
1968
- 1968-12-23 FR FR1599405D patent/FR1599405A/fr not_active Expired
- 1968-12-30 US US787692A patent/US3616620A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52170373U (de) * | 1976-06-18 | 1977-12-24 | ||
US4627863A (en) * | 1985-07-31 | 1986-12-09 | Max Klein | Filter for air handling equipment |
US4894071A (en) * | 1988-09-27 | 1990-01-16 | Tech Paper, Inc. | Portable air cleaner |
Also Published As
Publication number | Publication date |
---|---|
FR1599405A (de) | 1970-07-15 |
DE1981688U (de) | 1968-03-21 |
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