CA1189670A - Discharge apparatus for a silo - Google Patents
Discharge apparatus for a siloInfo
- Publication number
- CA1189670A CA1189670A CA000427796A CA427796A CA1189670A CA 1189670 A CA1189670 A CA 1189670A CA 000427796 A CA000427796 A CA 000427796A CA 427796 A CA427796 A CA 427796A CA 1189670 A CA1189670 A CA 1189670A
- Authority
- CA
- Canada
- Prior art keywords
- discharge apparatus
- silo
- wall
- set forth
- delivery port
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Abstract A discharge apparatus for a silo, comprising walls (2), a base funnel (1) and a delivery port (8) at the bottom end thereof.
A problem to be solved is the vaulting of a siloed material and jamming of its downward trickling. In order to solve the problem, the wall (1) of a base funnel is pivotably linked (4) to the body and adapted to be pivoted up and down by means of a cam mechanism (5, 6).
A problem to be solved is the vaulting of a siloed material and jamming of its downward trickling. In order to solve the problem, the wall (1) of a base funnel is pivotably linked (4) to the body and adapted to be pivoted up and down by means of a cam mechanism (5, 6).
Description
Discharge apparatus for a silo.
The present invention r~lates to a discharge apparatus Eor a silo, comprisillg walls, a base funnel and a feeding port at the bottom end thereof~
With solid materials such as wood chips and peat, discharge of a silo is difficult since such materials vault easily. Here-tofore, the problem has been solved by means of various vibrators or push rods, chain conveyors or parallel screws.
These are expensive and complicated arrangements and spend plenty of energy.
An object of the invention is to provide an effective discharge apparatus for eliminating a vaulting effect and boosting a trickling effect.
This object is achieved by means of a silo discharge apparatus according to the invention whose characteristic features are set forth in the appended claims.
The invention will now be described in more detail with refer-ence made to the accompanying drawings, in which:
fig. 1 is a diagrammatic view of the bottom portion of a ~ilo equipped with a discharge apparatus of the invention, and Eigs. 2 and 3 illustrate the operating principle of a discharge apparatus of the invention.
Construction of the apparatus shown in fig. 1 will be apparent from the following list of components:
1 a displaceable bottom wall
The present invention r~lates to a discharge apparatus Eor a silo, comprisillg walls, a base funnel and a feeding port at the bottom end thereof~
With solid materials such as wood chips and peat, discharge of a silo is difficult since such materials vault easily. Here-tofore, the problem has been solved by means of various vibrators or push rods, chain conveyors or parallel screws.
These are expensive and complicated arrangements and spend plenty of energy.
An object of the invention is to provide an effective discharge apparatus for eliminating a vaulting effect and boosting a trickling effect.
This object is achieved by means of a silo discharge apparatus according to the invention whose characteristic features are set forth in the appended claims.
The invention will now be described in more detail with refer-ence made to the accompanying drawings, in which:
fig. 1 is a diagrammatic view of the bottom portion of a ~ilo equipped with a discharge apparatus of the invention, and Eigs. 2 and 3 illustrate the operating principle of a discharge apparatus of the invention.
Construction of the apparatus shown in fig. 1 will be apparent from the following list of components:
1 a displaceable bottom wall
2 fixed silo walls
3 a sealing between the fixed and displaceabl~ wall
4 a pivoted ïink
5 a lift roller
6 a cam
7 an adjustahle edge member
8 a delivery port
9 a transfer conveyor.
The apparatus operates as follows. A silo is charged or filled with a material, e.g. wood chips to be treated. Discharge of the silo is started by actuating a conveyor 9. By way of a port 8 said material trickles onto conveyor 9. After a certain period of time, depending on a material to be treated J the -trickling comes to an end as a result of vaulting. ~n automat ic control actuates a cam 6. The displaceable bottom wall 1 is journalled to the body by means of a lin~ 4 and swings therearound as lifted a certain distance by cam 6. The dis-placeable wall 1 sets the material particles in motion as shown in fig. 2: First along a circular arc A to apex B where-after, by virtue of the design of said cam 6, wall 1 rapidly drops by its own weiyht -to the initial position but, under the effect of gravity, said material particles drop straight down-wards to point C. Thus, the material particles nave travelled a distance D towards a discharge gate or delivery port 8.
Simultaneously, the upward movement of wall 1 produces a fracture plane 10 in the whole amount of material, said plane Eracturing an existing vault (~ig. 3).
The work cycle is repeated in intervals typical to each given materi.al. Eor minimizing the power demand of a transfer conveyor 9 it is possible to adjust the width of delivery port 8 by means of a displaceable plate 7. This is to prevent the jamming of said transfer conveyor 9.
The invention offers the following advantages:
- facilitates the lateral displacement of a material in silo without any actual displacement mechanism - prevents the vaulting - can be built without size restrictions - low energy consumption - delivery onto a transfer conveyor adjustable - is particularly suitab].e for the treatment of a solid fuel, such as wood chips, cutter dust, sawdust and both cut and milled peat - both bottoms of a silo can be constructed displacèable which is preferable in the treatment of powdered materials.
The apparatus operates as follows. A silo is charged or filled with a material, e.g. wood chips to be treated. Discharge of the silo is started by actuating a conveyor 9. By way of a port 8 said material trickles onto conveyor 9. After a certain period of time, depending on a material to be treated J the -trickling comes to an end as a result of vaulting. ~n automat ic control actuates a cam 6. The displaceable bottom wall 1 is journalled to the body by means of a lin~ 4 and swings therearound as lifted a certain distance by cam 6. The dis-placeable wall 1 sets the material particles in motion as shown in fig. 2: First along a circular arc A to apex B where-after, by virtue of the design of said cam 6, wall 1 rapidly drops by its own weiyht -to the initial position but, under the effect of gravity, said material particles drop straight down-wards to point C. Thus, the material particles nave travelled a distance D towards a discharge gate or delivery port 8.
Simultaneously, the upward movement of wall 1 produces a fracture plane 10 in the whole amount of material, said plane Eracturing an existing vault (~ig. 3).
The work cycle is repeated in intervals typical to each given materi.al. Eor minimizing the power demand of a transfer conveyor 9 it is possible to adjust the width of delivery port 8 by means of a displaceable plate 7. This is to prevent the jamming of said transfer conveyor 9.
The invention offers the following advantages:
- facilitates the lateral displacement of a material in silo without any actual displacement mechanism - prevents the vaulting - can be built without size restrictions - low energy consumption - delivery onto a transfer conveyor adjustable - is particularly suitab].e for the treatment of a solid fuel, such as wood chips, cutter dust, sawdust and both cut and milled peat - both bottoms of a silo can be constructed displacèable which is preferable in the treatment of powdered materials.
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Discharge apparatus for a silo, comprising walls 2, a base funnel 1 and a delivery port 8 at the bottom end thereof, characterized in that the wall 1 of a base funnel is pivotably linked 4 to the body and adapted to be swingable up and down by means of a cam mechanism 5, 6.
2. A discharge apparatus as set forth in claim 1, characterized in that said cam mechanism 5, 6 is so de-signed that the upward swinging occurs slowly and the downward swinging as a sudden drop.
3. A discharge apparatus as set forth in claim 1, characterized in that fitted between a fixed wall 2 and said displaceable bottom wall 1 is a resilient sealing 3.
4. A discharge apparatus as set forth in claim 1, 2 or 3, characterized in that serving as an extension of said displaceable bottom wall 1 is a wall portion 7, which is displaceable in the direction of said bottom wall 1 for adjustment of the width of a delivery port 8.
5. A discharge apparatus as set forth in claim 1, 2 or 3, characterized in that provided between the edges of planar bottom walls 1 is an elongated delivery port 8, disposed above a transfer conveyor 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI821653 | 1982-05-11 | ||
| FI821653A FI62993C (en) | 1982-05-11 | 1982-05-11 | UTMATNINGSANORDNING FOER SILO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1189670A true CA1189670A (en) | 1985-07-02 |
Family
ID=8515498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000427796A Expired CA1189670A (en) | 1982-05-11 | 1983-05-10 | Discharge apparatus for a silo |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1189670A (en) |
| FI (1) | FI62993C (en) |
| HU (1) | HUT35553A (en) |
| SE (1) | SE8302183L (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922463A (en) * | 1988-08-22 | 1990-05-01 | Del Zotto Manufacturing Co. | Portable volumetric concrete mixer/silo |
| CN103287622A (en) * | 2013-06-27 | 2013-09-11 | 顺天保暖制品（昆山）有限公司 | Mechanical cam shaking device on filling machine |
-
1982
- 1982-05-11 FI FI821653A patent/FI62993C/en not_active IP Right Cessation
-
1983
- 1983-04-19 SE SE8302183A patent/SE8302183L/en not_active Application Discontinuation
- 1983-05-10 CA CA000427796A patent/CA1189670A/en not_active Expired
- 1983-05-11 HU HU831635A patent/HUT35553A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922463A (en) * | 1988-08-22 | 1990-05-01 | Del Zotto Manufacturing Co. | Portable volumetric concrete mixer/silo |
| CN103287622A (en) * | 2013-06-27 | 2013-09-11 | 顺天保暖制品（昆山）有限公司 | Mechanical cam shaking device on filling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| HUT35553A (en) | 1985-07-29 |
| FI62993B (en) | 1982-12-31 |
| FI821653A0 (en) | 1982-05-11 |
| SE8302183L (en) | 1983-11-12 |
| FI62993C (en) | 1983-04-11 |
| SE8302183D0 (en) | 1983-04-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |