US3877110A - Cleaning apparatus - Google Patents

Cleaning apparatus Download PDF

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Publication number
US3877110A
US3877110A US355179A US35517973A US3877110A US 3877110 A US3877110 A US 3877110A US 355179 A US355179 A US 355179A US 35517973 A US35517973 A US 35517973A US 3877110 A US3877110 A US 3877110A
Authority
US
United States
Prior art keywords
tank
trash
rollers
transporting
outlet end
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
Application number
US355179A
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English (en)
Inventor
John T Mccloskey
Eduardo J Villavicenio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Process Evaluation and Development Corp
Original Assignee
Process Evaluation and Development Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to AR249876A priority Critical patent/AR204514A1/es
Application filed by Process Evaluation and Development Corp filed Critical Process Evaluation and Development Corp
Priority to US355179A priority patent/US3877110A/en
Priority to AU58611/73A priority patent/AU483889B2/en
Priority to FR7330517A priority patent/FR2227056B1/fr
Priority to BR6455/73A priority patent/BR7306455D0/pt
Priority to IN1937/CAL/73A priority patent/IN140851B/en
Priority to ES418312A priority patent/ES418312A1/es
Priority to PH15045A priority patent/PH14372A/en
Priority to JP11404073A priority patent/JPS564306B2/ja
Priority to OA55044A priority patent/OA04562A/xx
Priority to GB5019773A priority patent/GB1440836A/en
Priority to EG133/74A priority patent/EG11350A/xx
Priority to US05/547,278 priority patent/US3992754A/en
Application granted granted Critical
Publication of US3877110A publication Critical patent/US3877110A/en
Priority to ES442711A priority patent/ES442711A1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10—Separating vegetable fibres from stalks or leaves
    • D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
    • D01B1/30—Details of machines
    • D01B1/40—Arrangements for disposing of non-fibrous materials
    • D01B1/42—Arrangements for disposing of non-fibrous materials employing liquids

Definitions

  • This invention relates to cleaning apparatus and method.
  • it relates to apparatus and method for cleaning fibrous vegetable materials intended for use in preparing paper pulp to remove undesired trash components such as sand, stones, rocks, metallic particles, shives, dirt and similar impurities.
  • the invention is especially suitable for cleaning fibers of sugarcane bagasse but is also suitable for cleaning fibers of other vegetable materials such as straw, flax, rice hulls, bamboo, esparto, hemp, waste jute, and the like.
  • FIG. 1 is a plan view showing one possible general arrangement of the apparatus of the present invention
  • FIG. 2 is a front view, in elevation, of the apparatus shown in FIG. 1;
  • FIG. 3 is an end view, in elevation, taken from the right side of FIG. 1;
  • FIG. 4 is an elevational view, partially in section, taken generally on line 4-4 of FIG. 1;
  • FIG. 5 is an elevational view, partially in section, taken generally on line 5-5 of FIG. 5.
  • the illustrated cleaning apparatus of this invention generally designated in FIG. 1 as 10, includes a U-shaped wash tank or trough 11 comprising outer side wall 12, inner side wall 13, an interconnecting bottom wall 14 and an open top.
  • the inner side wall 13 has openings 13a and 1312 (as seen in FIGS. 5 and 4; respectively) at the outlet end 16 and inlet end 15, respectively, of the device to permit recirculation of cleaning fluid.
  • the apparatus could be linear, in which case separate provisions would be required for recirculation.
  • the illustrated U- shape design gives a more compact unit and simplified recirculation.
  • the feed rollers 21, 22 and 23 have a plurality of curved fingers of uniform length secured to their outer circumference, such as the fingers shown on roller 22.
  • Rollers 24 and 25 have similar curved fingers except that the fingers on these rollers are of varying length. All of the fingers 20 on rollers 21 through 25 are curved away from the direction of rotation of the rollers (see, for example, FIG. 4). As the rollers 21 through 25 rotate, these fingers cause the fibrous material fed through inlet chute 15 to be positively fed from the inlet end towards the outlet end of the tank. At the same time the fingers cause the fibrous material to be repeatedly dunked or immersed in the cleaning fluid maintained in the tank.
  • rollers 24 and 25 At the loop in the U-shaped cleaning tank the fingers or pins are arranged in a frustoconical feed pattern on the rollers 24 and 25.
  • This pattern on roller 25 at the exit or outlet side of the loop has a larger base diameter than the pattern on roller 24.
  • the smaller feed pattern diameter of roller 24 near the center part of the tank (the midfeather) reduces the linear velocity of the fibers so that they can suitably travel around the bend in the U-shaped tank.
  • Roller 25 has a larger diameter feed pattern at the midfeather to accelerate the fibers after they pass the bend.
  • the bottom of the cleaning tank has an inverted sloping cone section 17 which is also located at the loop or bend of the overall U-shape.
  • a trash discharge device 18 This includes a cyclindrical chamber 30 and top and bottom gate valves 31, 32.
  • the top gate valve 31 is normally open, permitting collection of settled out foreign materials in the chamber 30. Periodically, this valve is closed and bottom valve 32 is opened, discharging the collected trash. Then the bottom valve is closed again, the chamber 30 is refilled with water from a separate source 52 (FIG. 3) and finally the top valve 31 is reopened and foreign materials settling in cone section 17 again being to collect in the chamber 30.
  • the chamber 30 may also be provided with an air vent line 53 to the atmosphere as shown in FIG. 3.
  • the operation of the trash discharge device is easily automated if desired and permits trouble-free periodic removal of collected foreign materials without interrupting the operating of cleaning tank 11.
  • the device may include means for introducing air bubbles to assist in refloating cleaned fibrous material to the top of the body of cleaning fluid.
  • Such means could include, for example, the air pipe 50 and sparger 51, as shown in FIG. 2, situated in the inverted conical section 17 of tank 11 just above discharge device 18.
  • rollers 26, 27, 28 These rollers have a plurality of curved fingers (e.g., fingers 19 on roller 26) like those on rollers 21 through 23 of uniform length and curved away from the direction of rotation.
  • smooth metal plates 19a are attached at the ends of and across the respective rows of fingers 19 and serve as paddles for positive feed of the cleaned fibers toward the discharge chute.
  • the plates 19a are further provided with rubber flaps 19b which extend slightly beyond the end of fingers 19 to provide a squeegee-like flap action.
  • the rollers 26, 27, 28 in the outlet leg of the U-shaped tank are positioned for axial rotation on a plane above the rollers 21, 22, 23, 24 of the inlet leg.
  • this causes the cleaned fibrous materials to be forced up an incline 35 at the end of which the mat of fibers is permitted to drain through perforated plate 35a and may be compressed if desired to reduce the cleaning fluid (usually water) content to the desired level.
  • the cleaned fibrous materials slide down inclined discharge chute 16 to further processing. The drained water falls back into the tank and recirculates to the inlet side of the tank through openings 13a and 13b.
  • the apparatus includes a suitable power source such as motor 40 for driving the various rollers 21 through 28 via, for example, gear reducer 41 and drive chains (such as chain 42) cooperating with sprockets at each end of the respective rollers (e.g., sprockets 43 on roller 24).
  • a suitable power source such as motor 40 for driving the various rollers 21 through 28 via, for example, gear reducer 41 and drive chains (such as chain 42) cooperating with sprockets at each end of the respective rollers (e.g., sprockets 43 on roller 24).
  • the particular means chosen for driving the rollers is not critical and the illustrated drive as described above should be considered as exemplary of a number of possible means.
  • the overall apparatus is suitably supported in framing means, such as beams 44 and struts 45, with the axial drive shafts of each roller 21 through 28 suitably journalled on the beams in bearing blocks of the usual construction.
  • fibrous material to be cleaned such as dry" or moist depithed sugarcane bagasse (see. e.g., U.S. Pat. No. 3,537,142 granted Nov. 3, 1970) is introduced via inlet 15, into the tank 11, which has previously been filled to a suitable level with water or other desired liquid medium in which the fibrous material will normally tend to float.
  • water will be the preferred liquid medium.
  • the fluid level is usually maintained automatically through use of an automatic valve and a suitable overflow. It has been observed that best operation is usually obtained when the water level in the illustrated apparatus is maintained about six inches below the axial center line of rollers 21 through 25.
  • the speed of travel of the fibrous mat through the inlet leg of the tank and the length of the inlet leg is appropriately chosen to permit separation of the fibers and the foreign materials associated therewith. If the dirty fibrous material is transported too fast the foreign materials will not properly settle out whereas if the transport speed is too slow there is a tendency for some of the more dense fibrous material to settle out along with the trash. A few routine experiments will suffice for the skilled worker to determine the appropriate speed for his intended application.
  • the cleaned fibrous material is forced up the inclined plate 35 to the perforated plate 35a through which excess water or other liquid cleaning medium is permitted to drain back into the tank.
  • Proper design of the inclined plate 35, perforated plate 35a and cooperating rollers 26 through 28 permits one to achieve the desired liquid content in the fiber discharged from chute 16.
  • pressure rollers may be provided at the discharge end of the tank to assist in liquid removal from the fibrous material.
  • one may provide a bypass gate section 35g (FIG. 5) in plate 35 operated for example by piston mechanism 35p (FIG. 5) when desirable or necessary to recirculate fibrous material if there is a'jam-up at the outlet end of the tank or if it is observed that the product then under processing requires further cleaning.
  • dunking rollers 21, 22, 23, 24 and 25 were equipped with slightly curved fingers or pins 20 so that they would not catch the fibers as they emerge from the water.
  • these fingers were approximately 18 inches long, mounted on rolls about one foot in diameter.
  • the rolls were rotated at about 18 revolutions per minute giving an average linear speed of about 40 feet per minute to the fibers being transported through the tank.
  • the fibers were fed to the tank at a rate of about 5.8 tons per hour and in a floating mat about one foot thick on top of the water in the tank.
  • rollers 26, 27, 28 were the same 12 inch diameter and otherwise similar to rollers 21, 22, 23 except that they had smooth metal plates 19a welded to the curved fingers 19 on rollers 26 through 28 and extending across the width of the rollers.
  • Apparatus for cleaning fragments of fibrous vegetable materials to remove trash components therefrom comprising:
  • An open U-shaped tank defining an elongated path of travel from an inlet end and to an outlet end and containing a liquid medium in which the fibrous materials tend to float and the trash components will sink;
  • a trash collecting zone intermediate said inlet end and said outlet end;
  • Said trash collection zone consisting of means for transporting fibrous material through said zone and a sharply sloping trash component collection means extending downwardly from the tank bottom in the loop of the U of said U-shaped tank wherein the path of travel of fibrous material changes;
  • said means (h) comprises a tubular outlet chamber at the apex of the trash collection means with a pair of valves, one adjacent each end of the said chamber.
  • Apparatus as defined in claim 3 which includes a pair of transporting rollers in the loop of the U, the pins or fingers of which are of varying length arranged in a conical pattern.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
US355179A 1973-04-27 1973-04-27 Cleaning apparatus Expired - Lifetime US3877110A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
AR249876A AR204514A1 (es) 1973-04-27 1973-01-01 Mejoras en aparatos para tratar materiales vegetales fibrosos
US355179A US3877110A (en) 1973-04-27 1973-04-27 Cleaning apparatus
AU58611/73A AU483889B2 (en) 1973-04-27 1973-07-27 Cleaning apparatus and method
FR7330517A FR2227056B1 (enrdf_load_stackoverflow) 1973-04-27 1973-08-22
BR6455/73A BR7306455D0 (pt) 1973-04-27 1973-08-22 Metodo para processar material vegetal fibroso e aparelho para executar o metodo
IN1937/CAL/73A IN140851B (enrdf_load_stackoverflow) 1973-04-27 1973-08-23
ES418312A ES418312A1 (es) 1973-04-27 1973-08-29 Un metodo para extraer materiales extranos asociados de ma-teriales vegetales fibrosos.
PH15045A PH14372A (en) 1973-04-27 1973-09-24 Cleaning apparatus and methods
JP11404073A JPS564306B2 (enrdf_load_stackoverflow) 1973-04-27 1973-10-12
OA55044A OA04562A (fr) 1973-04-27 1973-10-23 Procédé et appareil de mise en oeuvre de procédé pour épurer des matières végétales fibreuses.
GB5019773A GB1440836A (en) 1973-04-27 1973-10-29 Cleaning
EG133/74A EG11350A (en) 1973-04-27 1974-04-21 A method and apparatus for cleaning fibrous vegetable material intended for use in preparing paper pulp
US05/547,278 US3992754A (en) 1973-04-27 1975-02-05 Method for cleaning bagasse fiber using a U-shaped wash path
ES442711A ES442711A1 (es) 1973-04-27 1975-11-17 Un aparato para limpiar fragmentos de materiales vegetales fibrosos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US355179A US3877110A (en) 1973-04-27 1973-04-27 Cleaning apparatus

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/547,278 Division US3992754A (en) 1973-04-27 1975-02-05 Method for cleaning bagasse fiber using a U-shaped wash path

Publications (1)

Publication Number Publication Date
US3877110A true US3877110A (en) 1975-04-15

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ID=23396522

Family Applications (1)

Application Number Title Priority Date Filing Date
US355179A Expired - Lifetime US3877110A (en) 1973-04-27 1973-04-27 Cleaning apparatus

Country Status (11)

Country Link
US (1) US3877110A (enrdf_load_stackoverflow)
JP (1) JPS564306B2 (enrdf_load_stackoverflow)
AR (1) AR204514A1 (enrdf_load_stackoverflow)
BR (1) BR7306455D0 (enrdf_load_stackoverflow)
EG (1) EG11350A (enrdf_load_stackoverflow)
ES (2) ES418312A1 (enrdf_load_stackoverflow)
FR (1) FR2227056B1 (enrdf_load_stackoverflow)
GB (1) GB1440836A (enrdf_load_stackoverflow)
IN (1) IN140851B (enrdf_load_stackoverflow)
OA (1) OA04562A (enrdf_load_stackoverflow)
PH (1) PH14372A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007119A (en) * 1975-09-09 1977-02-08 Blackstone Corporation Methods and apparatus for skimming liquids
US4063565A (en) * 1976-01-29 1977-12-20 Dalma Therman Edwards Apparatus for washing and/or treating potatoes and other such fruits and vegetables
US4237582A (en) * 1978-08-28 1980-12-09 Process Evaluation & Development Corporation Bagasse preparation
US4635322A (en) * 1984-10-22 1987-01-13 Process Evaluation And Development Corp. Fiber washer
US5198074A (en) * 1991-11-29 1993-03-30 Companhia Industreas Brasileiras Portela Process to produce a high quality paper product and an ethanol product from bamboo
RU2132892C1 (ru) * 1997-12-23 1999-07-10 Орловский научно-исследовательский институт легкого машиностроения - филиал ОрелГТУ Способ улавливания и выгрузки волокнистых липких материалов из жидкой среды, например шерсти из моющего раствора, и устройство для осуществления
CN104190530A (zh) * 2014-07-21 2014-12-10 江苏金沃机械有限公司 一种多转鼓式物料洗涤分离方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62115706U (enrdf_load_stackoverflow) * 1986-01-16 1987-07-23
FI96761C (sv) * 1993-05-13 1996-08-26 Tri Technic Ab Oy Tömningsanordning
CN109393517B (zh) * 2018-12-14 2020-03-06 爱可道生物科技有限公司 一种可通过漂浮打捞对花苞定量分级的朝鲜蓟清洗装置
CN110409210B (zh) * 2019-07-31 2021-05-25 浙江科技学院 芳纶纸基材料打浆疏解设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1150464A (en) * 1914-08-01 1915-08-17 James Thame Process of manufacturing yarn.
US1733256A (en) * 1928-07-17 1929-10-29 Cornstalk Products Company Inc Cottonseed hull and fiber separator
US2711822A (en) * 1953-07-24 1955-06-28 Raybestos Manhattan Inc Purification of fibrous asbestos
US2795823A (en) * 1952-06-02 1957-06-18 American Viscose Corp Process of recovering waste coated fibers and products made therewith
US2895176A (en) * 1952-06-02 1959-07-21 American Viscose Corp Apparatus for recovering waste coated fibers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1150464A (en) * 1914-08-01 1915-08-17 James Thame Process of manufacturing yarn.
US1733256A (en) * 1928-07-17 1929-10-29 Cornstalk Products Company Inc Cottonseed hull and fiber separator
US2795823A (en) * 1952-06-02 1957-06-18 American Viscose Corp Process of recovering waste coated fibers and products made therewith
US2895176A (en) * 1952-06-02 1959-07-21 American Viscose Corp Apparatus for recovering waste coated fibers
US2711822A (en) * 1953-07-24 1955-06-28 Raybestos Manhattan Inc Purification of fibrous asbestos

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007119A (en) * 1975-09-09 1977-02-08 Blackstone Corporation Methods and apparatus for skimming liquids
US4063565A (en) * 1976-01-29 1977-12-20 Dalma Therman Edwards Apparatus for washing and/or treating potatoes and other such fruits and vegetables
US4237582A (en) * 1978-08-28 1980-12-09 Process Evaluation & Development Corporation Bagasse preparation
US4635322A (en) * 1984-10-22 1987-01-13 Process Evaluation And Development Corp. Fiber washer
US5198074A (en) * 1991-11-29 1993-03-30 Companhia Industreas Brasileiras Portela Process to produce a high quality paper product and an ethanol product from bamboo
RU2132892C1 (ru) * 1997-12-23 1999-07-10 Орловский научно-исследовательский институт легкого машиностроения - филиал ОрелГТУ Способ улавливания и выгрузки волокнистых липких материалов из жидкой среды, например шерсти из моющего раствора, и устройство для осуществления
CN104190530A (zh) * 2014-07-21 2014-12-10 江苏金沃机械有限公司 一种多转鼓式物料洗涤分离方法

Also Published As

Publication number Publication date
IN140851B (enrdf_load_stackoverflow) 1977-01-01
FR2227056B1 (enrdf_load_stackoverflow) 1977-05-27
ES442711A1 (es) 1977-04-01
ES418312A1 (es) 1976-06-01
GB1440836A (en) 1976-06-30
JPS50105A (enrdf_load_stackoverflow) 1975-01-06
EG11350A (en) 1977-04-30
BR7306455D0 (pt) 1974-12-10
PH14372A (en) 1981-06-17
JPS564306B2 (enrdf_load_stackoverflow) 1981-01-29
FR2227056A1 (enrdf_load_stackoverflow) 1974-11-22
AR204514A1 (es) 1976-02-12
AU5861173A (en) 1975-01-30
OA04562A (fr) 1980-05-31

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