CA1310292C - Discharging apparatus - Google Patents
Discharging apparatusInfo
- Publication number
- CA1310292C CA1310292C CA000569339A CA569339A CA1310292C CA 1310292 C CA1310292 C CA 1310292C CA 000569339 A CA000569339 A CA 000569339A CA 569339 A CA569339 A CA 569339A CA 1310292 C CA1310292 C CA 1310292C
- Authority
- CA
- Canada
- Prior art keywords
- accordance
- reservoir
- arm
- discharge pipe
- section
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Washing And Drying Of Tableware (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Abstract
ABSTRACT
The invention relates to a discharge apparatus operating in connection with a reservoir and used more particularly to discharge material from a bleaching tower employed in the cellulose industry, wherein a rotating arm located in the region of the floor of the reservoir having a central discharging arrangement serves to convey to such central discharging arrangement the material to be dis-charged. The arm is connected to a rotating discharge pipe that extends through the reservoir floor.
The invention relates to a discharge apparatus operating in connection with a reservoir and used more particularly to discharge material from a bleaching tower employed in the cellulose industry, wherein a rotating arm located in the region of the floor of the reservoir having a central discharging arrangement serves to convey to such central discharging arrangement the material to be dis-charged. The arm is connected to a rotating discharge pipe that extends through the reservoir floor.
Description
2 ~ ~
The inven-tion relates to a discharging apparatus for use in a reservoir and which may be employed~ more particularly, in the cellulose industry, wherein a ro-tating arm serving to displace to -the central discharge site the material -to be discharged ls wi-thin -the zone of the reservoir floor having central discharging capability.
~ eservoirs capable of discharging material through the cen-tre of the floor with the assistance of a rotating displacement arm are known in the art;
the disadvantage of -this arrangement resides in the loca-tion of -the motive power ~or the displacement arm, which since it is in the axis of reservoir, it is likely to interrupt -the outflow of the ma-terial - 15 from the reservoir, depending on the type of material to be discharged.
A solu-tion -to solve this problem has been proposed. This solution comprises providing a central pipe serving at once for the discharge of material and the ro-tation of the displacement arm and featuring besides an unobstructed cross section, the ability to rotate and carry, for example, conveying ribs. This arrangement allows the pipe to convey material by itself. The main distinguishing feature of -the proposed discharging apparatus is, therefore, that the rotating arm is connected to a rotating discharge pipe protruding through the reservoir floor.
The following is a list of distinguishing features possessed by the discharging apparatus according to the invention, and which can be used singly or in combination:
.
~, 1 3~2~2 A pinion-drLven toothed ring connects with the dlscharge pipe Eor -the purpose of turning discharge pipe Eor -the purpose of turning discharge pipe and arm.
The toothed ring is suppor-ted by a ball-type slewing bearing and features an axial-symmetrical pinion drive, that can be provided by two diame-trically opposed pinions in particular.
The arm comprises a number of sections, and it is preferable tha-t a first section that sweeps through essentially the entire reservoir floor be intersected at righ-t angles by a shorter second section. Bent displacement blades in particular are disposed along such sectlons so as -to be able to advance material into the zone oE the displacement blades of -the second section. The spacing of the arms along the sections permits the material to be advanced toward -the central discharge site and then to be advanced further toward such site by the folIowing blade, which is located in a zone of the ; section diametrically opposed to the zone of the preceding blade.
The portion of the discharge pipe located inside the reservoir is formed by two~ diametrically opposed support members, which bear the mounting for the arm. The latter bears along its axis a deflector ; that, projecting toward -the inside of the reservoir, prevents the material to be discharged from falling directly in-tQ -the discharge pipe. Conveying ribs located on the inside of the discharge pipe project into the free cavity thereof, are arranged preferably at an angle to the radial direction and extend preferably below the lower end of the discharge pipe.
, ~, ~3~92 The invention shall next be described in ~- greater detail by means of drawings which illustrate a preEerred embodiment thereof and in which :
Figure 1 shows a vertical section taken along line A - A of Figure 3 through a reservoir Eloor having a discharge appara-tusi~
Figure 2 is a section taken along line ~ -B of Figure l;
Figure 3 is a view of the embodiment illus-trated ln Figure 1 in -the direction indicated by arrow X.
The embodiment is illustrated in Figure 1 in a scale larger than in Figures 2 or 3.
Arranged in the region of the floor inside a reservoir 1 possessing a sloping floor 2 is a displacement arm 3 featuring arms of unequal length that in-tersect at right angles to form a cross.
Displacement blades are carried by these arms and in such a way that the blades disposed along the longer arm are capable of sweeping ~hrough the peripheral zone of the~floor of the reservoir, while the blades disposed along the shorter arm are capable of sweeping through the cen-tral zone of the floor of the reservoir.
The arrangernent of the blades ~urthermore permits material to be advanced from one blade to the following blade along displacement arm 3, while the next blade lies diametrically opposi-te the preceding blade of the same arm. In Figure 3, blades 4-10 are arranged serially in the direction of displacement.
An examination of the arrangement of the displacement blades reveals further that the acuteness of the angle a-t which ~these blades are installed increases from the periphery to the centre. A deflector 11 in the form of pyramid having a quadratic base and which _3_ ~ 3~2~
projects toward the inside of reservoir 1 ls caxried in the middle of displac.ement 3; deflector 11 serves to laterally deflect away from the head of displace-men-t arm 3 the material to be discharged.
Displacemen-t arm 3 is bolted at 12 to a web 13 that bridges upstanding extensions 14, 15 of a discharge pipe 16 that extends axially downward beyond reservoir floor 2. Discharge pipe 16 features no openings in the ~one beneath reservoir floor 2.
:; 10 Due to the discontinuity of the pipe wall inside reservoir 1, and the fact that it is completely closed up a-t the lower end of the discharge pipe, such an arrangement permits displace-ment blades 7 and 10 to move material without impediment, into discharge pipe 16.
Two axial conveying ribs 17, 18 are mounted inside of discharge pipe 16 and extend below the wer end thereof. : :
The lower end of the discharge pipe 16 is rigidly connected -to a surrounding pipe 19 featuring annular grooves whichj although not illustrated in further detail, serve to accept the downwardly pulled reservoir floor. Surrounding pipe 19 furthermore carries~, parallel to the rotation plane of displace-~
ment arm 3, an annular plate 20 onto whose external rim is bolted a ring having external toothing, which : shall hereinafter: be referred to as a toothed ring 21, to which assembly is connected an inner ring of a ~: ball-type slewing bearing arrangement 22 that on the ~; 30 inside is connec-ted to toothed ring 21 and on theou-tside is supported upon a ring 23 that is bolted to a bed 24. This lmplies that the assembly consisting of displacement arm 3; web 13, extensions 14, 15;
discharge pipe 16; surrounding pipe 19; annular plate 20; toothed ring 21 is borne upon a bed in such a way _~_ ~1 3 ~ 2 as to be able to rotate. Figures 2 and 3 demonstrate that reservoir 1 is itself .suppor-ted upon four bearlng members 25. Bed 24 can-- but need not be --anchored -to -these bearing members 25 and features beneath dlscharge pipe 16 a chute 26 that is aligned wi-th the latter and into which conveyiny ribs 17, 18 of discharge pipe 16 extend.
Any one of a number of devices e.g. a conveyor belt, sui-table for catching the discharged material, can be positioned beneath chute 26~
Driving motors 27, which are installed : diametrically opposite each other on bed 24, possess similarly diametrically opposed pinions 28 that engage toothed ring 21.
15The proposed construction thus permits a system to remove material from the centre of reservoirs whi.le featuring a high load bearing capacity, an equalIy effective drive arrangement for the displacement arm, and an entirely unobstructed centrally located discharge conduit along whose course can be install.ed without difficulty, additional means suitable for facilitating the continued removal of discharge material.
.
~: .
: -5_
The inven-tion relates to a discharging apparatus for use in a reservoir and which may be employed~ more particularly, in the cellulose industry, wherein a ro-tating arm serving to displace to -the central discharge site the material -to be discharged ls wi-thin -the zone of the reservoir floor having central discharging capability.
~ eservoirs capable of discharging material through the cen-tre of the floor with the assistance of a rotating displacement arm are known in the art;
the disadvantage of -this arrangement resides in the loca-tion of -the motive power ~or the displacement arm, which since it is in the axis of reservoir, it is likely to interrupt -the outflow of the ma-terial - 15 from the reservoir, depending on the type of material to be discharged.
A solu-tion -to solve this problem has been proposed. This solution comprises providing a central pipe serving at once for the discharge of material and the ro-tation of the displacement arm and featuring besides an unobstructed cross section, the ability to rotate and carry, for example, conveying ribs. This arrangement allows the pipe to convey material by itself. The main distinguishing feature of -the proposed discharging apparatus is, therefore, that the rotating arm is connected to a rotating discharge pipe protruding through the reservoir floor.
The following is a list of distinguishing features possessed by the discharging apparatus according to the invention, and which can be used singly or in combination:
.
~, 1 3~2~2 A pinion-drLven toothed ring connects with the dlscharge pipe Eor -the purpose of turning discharge pipe Eor -the purpose of turning discharge pipe and arm.
The toothed ring is suppor-ted by a ball-type slewing bearing and features an axial-symmetrical pinion drive, that can be provided by two diame-trically opposed pinions in particular.
The arm comprises a number of sections, and it is preferable tha-t a first section that sweeps through essentially the entire reservoir floor be intersected at righ-t angles by a shorter second section. Bent displacement blades in particular are disposed along such sectlons so as -to be able to advance material into the zone oE the displacement blades of -the second section. The spacing of the arms along the sections permits the material to be advanced toward -the central discharge site and then to be advanced further toward such site by the folIowing blade, which is located in a zone of the ; section diametrically opposed to the zone of the preceding blade.
The portion of the discharge pipe located inside the reservoir is formed by two~ diametrically opposed support members, which bear the mounting for the arm. The latter bears along its axis a deflector ; that, projecting toward -the inside of the reservoir, prevents the material to be discharged from falling directly in-tQ -the discharge pipe. Conveying ribs located on the inside of the discharge pipe project into the free cavity thereof, are arranged preferably at an angle to the radial direction and extend preferably below the lower end of the discharge pipe.
, ~, ~3~92 The invention shall next be described in ~- greater detail by means of drawings which illustrate a preEerred embodiment thereof and in which :
Figure 1 shows a vertical section taken along line A - A of Figure 3 through a reservoir Eloor having a discharge appara-tusi~
Figure 2 is a section taken along line ~ -B of Figure l;
Figure 3 is a view of the embodiment illus-trated ln Figure 1 in -the direction indicated by arrow X.
The embodiment is illustrated in Figure 1 in a scale larger than in Figures 2 or 3.
Arranged in the region of the floor inside a reservoir 1 possessing a sloping floor 2 is a displacement arm 3 featuring arms of unequal length that in-tersect at right angles to form a cross.
Displacement blades are carried by these arms and in such a way that the blades disposed along the longer arm are capable of sweeping ~hrough the peripheral zone of the~floor of the reservoir, while the blades disposed along the shorter arm are capable of sweeping through the cen-tral zone of the floor of the reservoir.
The arrangernent of the blades ~urthermore permits material to be advanced from one blade to the following blade along displacement arm 3, while the next blade lies diametrically opposi-te the preceding blade of the same arm. In Figure 3, blades 4-10 are arranged serially in the direction of displacement.
An examination of the arrangement of the displacement blades reveals further that the acuteness of the angle a-t which ~these blades are installed increases from the periphery to the centre. A deflector 11 in the form of pyramid having a quadratic base and which _3_ ~ 3~2~
projects toward the inside of reservoir 1 ls caxried in the middle of displac.ement 3; deflector 11 serves to laterally deflect away from the head of displace-men-t arm 3 the material to be discharged.
Displacemen-t arm 3 is bolted at 12 to a web 13 that bridges upstanding extensions 14, 15 of a discharge pipe 16 that extends axially downward beyond reservoir floor 2. Discharge pipe 16 features no openings in the ~one beneath reservoir floor 2.
:; 10 Due to the discontinuity of the pipe wall inside reservoir 1, and the fact that it is completely closed up a-t the lower end of the discharge pipe, such an arrangement permits displace-ment blades 7 and 10 to move material without impediment, into discharge pipe 16.
Two axial conveying ribs 17, 18 are mounted inside of discharge pipe 16 and extend below the wer end thereof. : :
The lower end of the discharge pipe 16 is rigidly connected -to a surrounding pipe 19 featuring annular grooves whichj although not illustrated in further detail, serve to accept the downwardly pulled reservoir floor. Surrounding pipe 19 furthermore carries~, parallel to the rotation plane of displace-~
ment arm 3, an annular plate 20 onto whose external rim is bolted a ring having external toothing, which : shall hereinafter: be referred to as a toothed ring 21, to which assembly is connected an inner ring of a ~: ball-type slewing bearing arrangement 22 that on the ~; 30 inside is connec-ted to toothed ring 21 and on theou-tside is supported upon a ring 23 that is bolted to a bed 24. This lmplies that the assembly consisting of displacement arm 3; web 13, extensions 14, 15;
discharge pipe 16; surrounding pipe 19; annular plate 20; toothed ring 21 is borne upon a bed in such a way _~_ ~1 3 ~ 2 as to be able to rotate. Figures 2 and 3 demonstrate that reservoir 1 is itself .suppor-ted upon four bearlng members 25. Bed 24 can-- but need not be --anchored -to -these bearing members 25 and features beneath dlscharge pipe 16 a chute 26 that is aligned wi-th the latter and into which conveyiny ribs 17, 18 of discharge pipe 16 extend.
Any one of a number of devices e.g. a conveyor belt, sui-table for catching the discharged material, can be positioned beneath chute 26~
Driving motors 27, which are installed : diametrically opposite each other on bed 24, possess similarly diametrically opposed pinions 28 that engage toothed ring 21.
15The proposed construction thus permits a system to remove material from the centre of reservoirs whi.le featuring a high load bearing capacity, an equalIy effective drive arrangement for the displacement arm, and an entirely unobstructed centrally located discharge conduit along whose course can be install.ed without difficulty, additional means suitable for facilitating the continued removal of discharge material.
.
~: .
: -5_
Claims (9)
1. Discharge apparatus for use in connection with a reservoir and more particularly to discharge material from a bleaching tower employed in the cellulose industry, which comprises a rotating arm serving to move to central discharge site the material to be discharged, said rotating arm being located in a zone of reservoir floor having a central discharging arrangement, said arm being connected to a rotating discharge pipe that passes through said reservoir floor, wherein said arm comprises a plurality of sections, a first section sweeping through essentially the entire said reservoir floor, a second, shorter section oriented at right angles to said first section, displacement blades disposed along said sections, the displacement blades of said first section being capable of advancing into the zone of the displacement blades of said second section, said material to be discharged.
2. Apparatus in accordance with claim 1, wherein said displacement blades are bent.
3. Apparatus in accordance with claim 1, wherein said displacement blades are separated from each other in the radial direction along said sections in such a way that said material to be discharged is advanced by one blade toward the central discharge site and then further advanced by a following blade, which is located in a zone of the section diametrically opposite the zone in which the first blade is carried.
4. Apparatus in accordance with any one of claims 1 to 3, wherein conveying ribs are mounted in said discharge pipe, project into free cavity thereof, and are furthermore arranged at an angle to the radial direction and extend below the end of said discharge pipe.
5. Apparatus in accordance with claim 1, wherein said discharge pipe is connected to a pinion-driven toothed ring for the purpose of turning said discharge pipe and said arm.
6. Apparatus in accordance with claim 5, wherein said toothed ring is supported by a ball-type slewing bearing arrangement.
7. Apparatus in accordance with claim 5 or 6, wherein said toothed ring comprises an axial-symmetrical pinion drive.
8. Apparatus in accordance with claim 5 or 6, wherein said toothed ring comprises two diametrically opposed pinions.
9. Apparatus in accordance with any one of claims 1 to 3, wherein said arm carries along its axis a deflector that projects toward the inside of said reservoir.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1498/87 | 1987-06-12 | ||
| AT149887A AT387995B (en) | 1987-06-12 | 1987-06-12 | DISCHARGE DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1310292C true CA1310292C (en) | 1992-11-17 |
Family
ID=3515135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000569339A Expired - Lifetime CA1310292C (en) | 1987-06-12 | 1988-06-13 | Discharging apparatus |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP2668394B2 (en) |
| AT (1) | AT387995B (en) |
| BR (1) | BR8802854A (en) |
| CA (1) | CA1310292C (en) |
| DE (1) | DE3819861C2 (en) |
| FI (1) | FI95057C (en) |
| FR (1) | FR2616457A1 (en) |
| SE (1) | SE503578C2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT394738B (en) * | 1990-09-03 | 1992-06-10 | Andritz Ag Maschf | METHOD AND DEVICE FOR DISCHARGING A MEDIUM FROM A CONTAINER |
| US5177453A (en) * | 1991-07-01 | 1993-01-05 | Raytheon Company | Gain control amplifier |
| JP2937673B2 (en) * | 1993-01-25 | 1999-08-23 | 株式会社東芝 | Communication device |
| AT403800B (en) * | 1995-04-28 | 1998-05-25 | Chemiefaser Lenzing Ag | DEVICE FOR CONTINUOUSLY CONVEYING HARD-FLOWING MATERIALS |
| JP2009248387A (en) * | 2008-04-03 | 2009-10-29 | Kojima Press Industry Co Ltd | Molded article taking-out apparatus |
| JP2009248388A (en) * | 2008-04-03 | 2009-10-29 | Kojima Press Industry Co Ltd | Molded article taking-out apparatus |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE543085C (en) * | 1932-02-03 | Frau Cato Van Vollenhoven | Double rotating grate for shaft ovens for burning cement | |
| US1989571A (en) * | 1932-05-03 | 1935-01-29 | Thorne Carl Busch | Method of and apparatus for bleaching and refining pulp |
| DE1097803B (en) * | 1956-02-02 | 1961-01-19 | A Ekstroems Maskinaffaer Ab | Washer for emptying cellulose from a container |
| US3182825A (en) * | 1963-08-12 | 1965-05-11 | Koppers Co Inc | Apparatus for transfer of a powdered or granular material from a space under low pressure into a space under high pressure |
| DE1281947B (en) * | 1963-12-19 | 1968-10-31 | Theodor Kokeisl Dipl Ing | Bulk goods container |
| SE324996B (en) * | 1967-08-16 | 1970-06-15 | Sunds Ab | |
| DE1940714C3 (en) * | 1969-08-09 | 1980-12-04 | Maschinenfabrik Meyer & Co Gmbh, 6625 Puettlingen | Device for discharging bulk goods from a silo |
| SE369531B (en) * | 1973-01-05 | 1974-09-02 | Sunds Ab | |
| JPS5071061A (en) * | 1973-10-26 | 1975-06-12 | ||
| JPS51113961A (en) * | 1975-03-31 | 1976-10-07 | Hitachi Metals Ltd | Floor scraping silo with basement |
| JPS53117774U (en) * | 1977-02-26 | 1978-09-19 | ||
| CA1127357A (en) * | 1978-05-23 | 1982-07-13 | Makoto Kikuiri | Process for producing alkali pulp |
| SU787520A1 (en) * | 1979-01-05 | 1980-12-15 | Предприятие П/Я Р-6729 | Unloader for column-type apparatus |
| DE3107966C2 (en) * | 1981-03-03 | 1984-06-14 | Lothar Dipl.-Ing. 5000 Köln Teske | Device for emptying an upright bulk material silo |
| JPS59152179A (en) * | 1983-02-15 | 1984-08-30 | 三菱重工業株式会社 | Silo |
| JPH038654Y2 (en) * | 1986-01-14 | 1991-03-04 |
-
1987
- 1987-06-12 AT AT149887A patent/AT387995B/en not_active IP Right Cessation
-
1988
- 1988-06-10 FR FR8807972A patent/FR2616457A1/en active Pending
- 1988-06-10 BR BR8802854A patent/BR8802854A/en not_active Application Discontinuation
- 1988-06-10 SE SE8802182A patent/SE503578C2/en not_active IP Right Cessation
- 1988-06-10 FI FI882767A patent/FI95057C/en not_active IP Right Cessation
- 1988-06-10 DE DE19883819861 patent/DE3819861C2/en not_active Expired - Fee Related
- 1988-06-13 CA CA000569339A patent/CA1310292C/en not_active Expired - Lifetime
- 1988-06-13 JP JP63145555A patent/JP2668394B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FI95057B (en) | 1995-08-31 |
| SE503578C2 (en) | 1996-07-08 |
| BR8802854A (en) | 1989-01-03 |
| AT387995B (en) | 1989-04-10 |
| JPS6417719A (en) | 1989-01-20 |
| DE3819861C2 (en) | 1993-10-07 |
| JP2668394B2 (en) | 1997-10-27 |
| DE3819861A1 (en) | 1988-12-29 |
| FI95057C (en) | 1995-12-11 |
| FI882767A0 (en) | 1988-06-10 |
| FI882767A (en) | 1988-12-13 |
| ATA149887A (en) | 1988-09-15 |
| SE8802182D0 (en) | 1988-06-10 |
| FR2616457A1 (en) | 1988-12-16 |
| SE8802182L (en) | 1988-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |