CA1177218A - Bulk storage silo - Google Patents
Bulk storage siloInfo
- Publication number
- CA1177218A CA1177218A CA000413431A CA413431A CA1177218A CA 1177218 A CA1177218 A CA 1177218A CA 000413431 A CA000413431 A CA 000413431A CA 413431 A CA413431 A CA 413431A CA 1177218 A CA1177218 A CA 1177218A
- Authority
- CA
- Canada
- Prior art keywords
- bars
- posts
- bands
- horizontal
- vertical
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/22—Containers for fluent solids, e.g. silos, bunkers; Supports therefor
- E04H7/24—Constructions, with or without perforated walls, depending on the use of specified materials
- E04H7/30—Constructions, with or without perforated walls, depending on the use of specified materials mainly of metal
Abstract
Abstract Disclosed is a portable silo for bulk storage of granular material, being an improvement over that in prior Canadian Patent 1,122,130 in respect of simplification of design and facilitation of the adjustment of tension in the flexible bands that extend between posts and horizontal bars that constitute the members of a frame in which a flexible bag is confined.
Description
BULK STORAGE SILO
Background_of the ~nvention This invention relates to a portable silo or bulk storage system for the storage of free-flowing solid materials, such as powders, grains, pellets or the like.
The system is also suitable for the bulk storage of food products as well as grain feeds, fertilizers, cement, and numerous resins available in pellet or flake form. Such materials are generally referred to herein as "granular"
materials.
The present invention is an improvement over the silo disclosed in Canadian Patent 1,122,130 issued April 20, 1982, inventor Graham Love, (U.S. Patent 4,306,663 issued December 22, 1981).
Summar~ of the Invention More specifical]y, the apparatus described herein contains improvements over the silo disclosed in such prior patent in respect of simplification of the design of the frame and fac:ilitation of the adjustment of tension in the flexible bands that extend both horizontally and vertically between the posts and horizontal bars that constitute the members of a frame in which a flexible bag is confined.
To this end, the invention consists of a portable silo for bulk storage of granular material, comprising (a) a rectangular frame comprising four vertical, metal corner posts, a plurality of horizontal, metal bars and means for interconnecting said posts and bars so that upper, lower and intermediate bars extend between the posts at locations adjacent the tops and bottoms of the posts and at at least one level therebetween, said frame defining an open-bottomed ~1772~
framework adapted to be free standing on a firm horizontal floor, said connecting means being capable of ready assembly and disassembly to permit said posts and bars to be placed in storage condition; (b) a plurality of horizontal, flexible bands extending between adjacent posts, said bands being spaced apart vertically between the top and bottom horizontal bars; (c) a plurality o-f vertical, flexible bands extending between the top and bottom horizontal bars, said vertical bands being spaced apart horizontally between corner posts; (d) said horizontal and vertical bands being capable of ready assembly and disassembly with said posts and bars to permit the bands to be placed in storage condition; (e) means for adjusting the tension in said horizontal bands; (f) means for adjusting the tension in said vertical bands; and (g) a flexible bag confined by said frame and said bands while separate therefrom with the bag resting on said floor, said bag having a filling tube near its top and at least one discharge tube at a side thereof near its bottom to enable discharging of the bag while so resting on the floor.
In the preferred embodiment of the invention, each horizontal band has:
hook means at one end for ready engagement and disengagement with complementary hook-receiving means secured to a corner post, and a nut at its other end for receiving a bolt extending through an adjacent corner post, said bolt and nut constituting said means for adjusting the tension in the horizontal bands.
Also in the preferred embodiment, each vertical band has a loop at each end through respective ones of which loops the upper and lower horizontal bars are threaded, and il~7 ~
said means for adjusting the tension in the vertical bands comprises vertical adjustment means associated with said means for interconnecting the posts and bars at least at one of the upper and lower bars.
Brief Description of the Drawings The accompanying drawings illustrate one embodiment of the present invention. In these drawings:-Figure 1 is a perspective view of a silo and anassociated blower;
Figure 2 is a side or front view of the frame of the silo of Figure 1, i.e., with the inner bag omitted for clarity;
Figure 3 is an enlarged, fragmentary view of a portion of such frame;
Figure 4 is a section on the line IV-IV in Figure 3;
Figure 5 is a section on the line V-V in Figure 2;
Figure 6 is a section on the line VI-VI in Figure 2;
Figure 6A is a section on the line VIa-VIa in Figure 6;
Figure 7 is a section on the line VII-VII in Figure 6;
Figure 8 is a section on the line VIII-VIII in Figure
Background_of the ~nvention This invention relates to a portable silo or bulk storage system for the storage of free-flowing solid materials, such as powders, grains, pellets or the like.
The system is also suitable for the bulk storage of food products as well as grain feeds, fertilizers, cement, and numerous resins available in pellet or flake form. Such materials are generally referred to herein as "granular"
materials.
The present invention is an improvement over the silo disclosed in Canadian Patent 1,122,130 issued April 20, 1982, inventor Graham Love, (U.S. Patent 4,306,663 issued December 22, 1981).
Summar~ of the Invention More specifical]y, the apparatus described herein contains improvements over the silo disclosed in such prior patent in respect of simplification of the design of the frame and fac:ilitation of the adjustment of tension in the flexible bands that extend both horizontally and vertically between the posts and horizontal bars that constitute the members of a frame in which a flexible bag is confined.
To this end, the invention consists of a portable silo for bulk storage of granular material, comprising (a) a rectangular frame comprising four vertical, metal corner posts, a plurality of horizontal, metal bars and means for interconnecting said posts and bars so that upper, lower and intermediate bars extend between the posts at locations adjacent the tops and bottoms of the posts and at at least one level therebetween, said frame defining an open-bottomed ~1772~
framework adapted to be free standing on a firm horizontal floor, said connecting means being capable of ready assembly and disassembly to permit said posts and bars to be placed in storage condition; (b) a plurality of horizontal, flexible bands extending between adjacent posts, said bands being spaced apart vertically between the top and bottom horizontal bars; (c) a plurality o-f vertical, flexible bands extending between the top and bottom horizontal bars, said vertical bands being spaced apart horizontally between corner posts; (d) said horizontal and vertical bands being capable of ready assembly and disassembly with said posts and bars to permit the bands to be placed in storage condition; (e) means for adjusting the tension in said horizontal bands; (f) means for adjusting the tension in said vertical bands; and (g) a flexible bag confined by said frame and said bands while separate therefrom with the bag resting on said floor, said bag having a filling tube near its top and at least one discharge tube at a side thereof near its bottom to enable discharging of the bag while so resting on the floor.
In the preferred embodiment of the invention, each horizontal band has:
hook means at one end for ready engagement and disengagement with complementary hook-receiving means secured to a corner post, and a nut at its other end for receiving a bolt extending through an adjacent corner post, said bolt and nut constituting said means for adjusting the tension in the horizontal bands.
Also in the preferred embodiment, each vertical band has a loop at each end through respective ones of which loops the upper and lower horizontal bars are threaded, and il~7 ~
said means for adjusting the tension in the vertical bands comprises vertical adjustment means associated with said means for interconnecting the posts and bars at least at one of the upper and lower bars.
Brief Description of the Drawings The accompanying drawings illustrate one embodiment of the present invention. In these drawings:-Figure 1 is a perspective view of a silo and anassociated blower;
Figure 2 is a side or front view of the frame of the silo of Figure 1, i.e., with the inner bag omitted for clarity;
Figure 3 is an enlarged, fragmentary view of a portion of such frame;
Figure 4 is a section on the line IV-IV in Figure 3;
Figure 5 is a section on the line V-V in Figure 2;
Figure 6 is a section on the line VI-VI in Figure 2;
Figure 6A is a section on the line VIa-VIa in Figure 6;
Figure 7 is a section on the line VII-VII in Figure 6;
Figure 8 is a section on the line VIII-VIII in Figure
2; and Figure 9 is a fragmentary perspective view showing a modification of a corner portion of the frame.
Description of the Preferred Embodiment Figure 1 shows a flexible bag 10 of heavy plastic material, e.g. woven polyolefin material of the type sold under the Trade Mark Felcolene, this bag being supported within a frame 11 which defines an open-bottomed peripheral framework adapted to be free-standing on a firm horizontal floor. The floor supports the weight of the bag 10 when full.
In plan view, the frame 11 is square, although other 117'72~
rectangular shapes are possib]e. In the example, all four sides are essentially the same, and hence one description and one view (Figure 2) thereof will suffice.
There are four, identical, vertical, corner posts 12 of metal joined together by horizontal, hollow metal bars 13 (at the top), 14 (at the bottom) and 15, 16 and 17 (at intermediate levels). Conveniently the bars 13-17 can be identical in construction, to simplify manufacture. A
typical bottom corner connection is shown in Figures 6 and 6A. Welded to the post 12 is a saddle bracket 18 having extending arms 19 that engage the horizontal bars 14. A
U-shaped strap 20 extends over each of these connections and a bolt and nut assembly 21 extends through holes in the strap 20, the arms 19 and the bars 14 to establish a secured connection.
As shown in Figure 5, the corresponding connection at the top of the frame involves a similar saddle b~acket 18 with arms 19 joined together beneath the horizontal bar 13 by platforms l9a to which nuts 22a are fixed in which adjusting screws 22 carrying lock nuts 22b are threaded.
Instead of holes, the arms 19 are formed with slots l9b so that by adjustment of the screws 22 the vertical position of the horizontal bars 13 can be modified before they are firmly fixed in place by tightening of the bolt and nut assemblies 21. This arrangement enables the spacing between the top and bottom horizontal bars 13 and 14 to be adjusted. As an alternative, the vertical adjustment can be provided at the foot of each post 12 rather than at the top; or can even be provided both top and bottom.
Similar saddle brackets 18 are welded to the posts 12 at the intermediate locations to connect the intermediate ~77;~18 horizontal bars 15, 16 and 17. These fixings are basically the same as those at the top of the frame, although without the adjustment feature.
Also extending between the corner posts 12 are a series of horizontal straps 23 of flexible webbing material. As best seen in Figures 3 and 4, at one end each strap 23 is stitched into a loop embracing a hooked loop member 24 that engages a hook-receiving bar 25 welded to a post 12. At its other end, each strap 23 is stitched to a rigid loop member 26 having a nut 27 into which there is threaded a bolt 28 extending through the post 12. Turning of the head 29 of the bo]t 28 will vary the tension in the strap 23.
There are also flexible vertical straps 30 extending between the top and bottom horizontal bars 13 and 14. As best seen from Figures 7 and 8, these vertical straps 30 are permanently sewn in loops at each end to embrace the bars 13 and 14. The frame is assembled by the bars 13 and 14 being threaded through these loops in the straps 30 before the bars are themselves secured at their ends in the manner already described. As is apparent from Figure 8, the straps 30 are not secured to the intermediate bars 15, 16 and 17, but merely lie against the inside s~rfaces of such bars. They also pass inside the horizontal straps 23 to which they are not connected.
The simplicity of assembly and disassemly will be apparent from the foregoing. The post-bar connections each involves simply slipping a bar end into a bracket 18 and securing with a single bolt and nut assernbly 21. The vertical flexible bands are merely threaded over the upper and lower bars and the horizontal bands hooked and screwed into place.
The top edge of the bag 10 is connected to the upper bars 13 by means of cords 39 that may be elastic. These cords serve merely to support the upper edge of the bag when empty. When it is full, the weight of the contents rests on the floor and is not taken by the cords. If desired the bottom corners of the bag can be connected to the bottoms of the posts 12 to ensure uniform filling.
In addition, as shown in Figure 9, each lower corner of the bag 10 can be protected against damage by a piece 44 of tough flexible material including an apron portion 45 located between the bag and any rough edges.
The silo is preferably filled by means of a blower 42 which, as shown in Figure 1, feeds the granular material to a top loading tube 40 formed in the upper surface of the bag 10. The tube 40 can be formed with a reinforcing collar for strength and can be of large diameter to enable rapid loading. Similarly reinforced discharge tubes 41 are formed at the bottom of side walls (preferbly three of the four side walls) of the bag 10. The provision of a plurality of discharge tubes makes the unloading process more versatile. The blower 42, now connected to one of the tubes 41, will normally be used for unloading the granular material. If two blowers are available, the system permits simultaneous loading and unloading which is a significant practical advantage. A ventilator 43 fitted with a fine screen to permit inflow and outflow of air during loading and unloading operations can be provided in the top surface or near the top of one of the side walls of the bag. When a very fine granular material, such as flour, is being handled, such ventilator can be connected to an aspirator tube leading to an appropriate remote Location.
When not in use the tubes 40 and 41 are tied closed.
Description of the Preferred Embodiment Figure 1 shows a flexible bag 10 of heavy plastic material, e.g. woven polyolefin material of the type sold under the Trade Mark Felcolene, this bag being supported within a frame 11 which defines an open-bottomed peripheral framework adapted to be free-standing on a firm horizontal floor. The floor supports the weight of the bag 10 when full.
In plan view, the frame 11 is square, although other 117'72~
rectangular shapes are possib]e. In the example, all four sides are essentially the same, and hence one description and one view (Figure 2) thereof will suffice.
There are four, identical, vertical, corner posts 12 of metal joined together by horizontal, hollow metal bars 13 (at the top), 14 (at the bottom) and 15, 16 and 17 (at intermediate levels). Conveniently the bars 13-17 can be identical in construction, to simplify manufacture. A
typical bottom corner connection is shown in Figures 6 and 6A. Welded to the post 12 is a saddle bracket 18 having extending arms 19 that engage the horizontal bars 14. A
U-shaped strap 20 extends over each of these connections and a bolt and nut assembly 21 extends through holes in the strap 20, the arms 19 and the bars 14 to establish a secured connection.
As shown in Figure 5, the corresponding connection at the top of the frame involves a similar saddle b~acket 18 with arms 19 joined together beneath the horizontal bar 13 by platforms l9a to which nuts 22a are fixed in which adjusting screws 22 carrying lock nuts 22b are threaded.
Instead of holes, the arms 19 are formed with slots l9b so that by adjustment of the screws 22 the vertical position of the horizontal bars 13 can be modified before they are firmly fixed in place by tightening of the bolt and nut assemblies 21. This arrangement enables the spacing between the top and bottom horizontal bars 13 and 14 to be adjusted. As an alternative, the vertical adjustment can be provided at the foot of each post 12 rather than at the top; or can even be provided both top and bottom.
Similar saddle brackets 18 are welded to the posts 12 at the intermediate locations to connect the intermediate ~77;~18 horizontal bars 15, 16 and 17. These fixings are basically the same as those at the top of the frame, although without the adjustment feature.
Also extending between the corner posts 12 are a series of horizontal straps 23 of flexible webbing material. As best seen in Figures 3 and 4, at one end each strap 23 is stitched into a loop embracing a hooked loop member 24 that engages a hook-receiving bar 25 welded to a post 12. At its other end, each strap 23 is stitched to a rigid loop member 26 having a nut 27 into which there is threaded a bolt 28 extending through the post 12. Turning of the head 29 of the bo]t 28 will vary the tension in the strap 23.
There are also flexible vertical straps 30 extending between the top and bottom horizontal bars 13 and 14. As best seen from Figures 7 and 8, these vertical straps 30 are permanently sewn in loops at each end to embrace the bars 13 and 14. The frame is assembled by the bars 13 and 14 being threaded through these loops in the straps 30 before the bars are themselves secured at their ends in the manner already described. As is apparent from Figure 8, the straps 30 are not secured to the intermediate bars 15, 16 and 17, but merely lie against the inside s~rfaces of such bars. They also pass inside the horizontal straps 23 to which they are not connected.
The simplicity of assembly and disassemly will be apparent from the foregoing. The post-bar connections each involves simply slipping a bar end into a bracket 18 and securing with a single bolt and nut assernbly 21. The vertical flexible bands are merely threaded over the upper and lower bars and the horizontal bands hooked and screwed into place.
The top edge of the bag 10 is connected to the upper bars 13 by means of cords 39 that may be elastic. These cords serve merely to support the upper edge of the bag when empty. When it is full, the weight of the contents rests on the floor and is not taken by the cords. If desired the bottom corners of the bag can be connected to the bottoms of the posts 12 to ensure uniform filling.
In addition, as shown in Figure 9, each lower corner of the bag 10 can be protected against damage by a piece 44 of tough flexible material including an apron portion 45 located between the bag and any rough edges.
The silo is preferably filled by means of a blower 42 which, as shown in Figure 1, feeds the granular material to a top loading tube 40 formed in the upper surface of the bag 10. The tube 40 can be formed with a reinforcing collar for strength and can be of large diameter to enable rapid loading. Similarly reinforced discharge tubes 41 are formed at the bottom of side walls (preferbly three of the four side walls) of the bag 10. The provision of a plurality of discharge tubes makes the unloading process more versatile. The blower 42, now connected to one of the tubes 41, will normally be used for unloading the granular material. If two blowers are available, the system permits simultaneous loading and unloading which is a significant practical advantage. A ventilator 43 fitted with a fine screen to permit inflow and outflow of air during loading and unloading operations can be provided in the top surface or near the top of one of the side walls of the bag. When a very fine granular material, such as flour, is being handled, such ventilator can be connected to an aspirator tube leading to an appropriate remote Location.
When not in use the tubes 40 and 41 are tied closed.
Claims (4)
1. A portable silo for bulk storage of granular material, comprising (a) a rectangular frame comprising four vertical, metal corner posts, a plurality of horizontal, hollow metal bars and means for interconnecting said posts and bars so that upper, lower and intermediate bars extend between the posts at locations adjacent the tops and bottoms of the posts and at at least one level therebetween, said frame defining an open-bottomed framework adapted to be free standing on a firm horizontal floor, said connecting means being capable of ready assembly and disassembly to permit said posts and bars to be placed in storage condition;
(b) a plurality of horizontal, flexible bands extending between adjacent posts, said bands being spaced apart vertically between the top and bottom horizontal bars;
(c) a plurality of vertical, flexible bands extending between the top and bottom horizontal bars, said vertical bands being spaced apart horizontally between corner posts;
(d) said horizontal and vertical bands being capable of ready assembly and disassembly with said posts and bars to permit the bands to be placed in storage condition;
(e) means for adjusting the tension in said horizontal bands;
(f) means for adjusting the tension in said vertical bands; and (g) a flexible bag confined by said frame and said bands while separate therefrom with the bag resting on said floor, said bag having a filling tube near its top and at least one discharge tube at a side thereof near its bottom to enable discharging of the bag while so resting on the floor.
(b) a plurality of horizontal, flexible bands extending between adjacent posts, said bands being spaced apart vertically between the top and bottom horizontal bars;
(c) a plurality of vertical, flexible bands extending between the top and bottom horizontal bars, said vertical bands being spaced apart horizontally between corner posts;
(d) said horizontal and vertical bands being capable of ready assembly and disassembly with said posts and bars to permit the bands to be placed in storage condition;
(e) means for adjusting the tension in said horizontal bands;
(f) means for adjusting the tension in said vertical bands; and (g) a flexible bag confined by said frame and said bands while separate therefrom with the bag resting on said floor, said bag having a filling tube near its top and at least one discharge tube at a side thereof near its bottom to enable discharging of the bag while so resting on the floor.
2. A silo according to claim 1, wherein each horizontal band has hook means at one end for ready engagement and disengagement with complementary hook-receiving means secured to a corner post, and a nut at its other end for receiving a bolt extending through an adjacent corner post, said bolt and nut constituting said means for adjusting the tension in the horizontal bands.
3. A silo according to claim 1 or 2, wherein each vertical band has a loop at each end through respective ones of which loops the upper and lower horizontal bars are threaded, and said means for adjusting the tension in the vertical bands comprises vertical adjustment means associated with said means for interconnecting the posts and bars at least at one of the upper and lower bars.
4. A silo according to claim 1 or 2, wherein said inter-connecting means include brackets interconnecting the lower bars to the posts and flexible covering means located between said brackets and lower corners of the bag to protect the latter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000413431A CA1177218A (en) | 1982-10-14 | 1982-10-14 | Bulk storage silo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000413431A CA1177218A (en) | 1982-10-14 | 1982-10-14 | Bulk storage silo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1177218A true CA1177218A (en) | 1984-11-06 |
Family
ID=4123766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000413431A Expired CA1177218A (en) | 1982-10-14 | 1982-10-14 | Bulk storage silo |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1177218A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1691010A2 (en) * | 2005-02-15 | 2006-08-16 | Genap B.V. | Method for building a reservoir, and a reservoir, a bag, an assembly and a method for manufacturing a lining |
-
1982
- 1982-10-14 CA CA000413431A patent/CA1177218A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1691010A2 (en) * | 2005-02-15 | 2006-08-16 | Genap B.V. | Method for building a reservoir, and a reservoir, a bag, an assembly and a method for manufacturing a lining |
| NL1028282C2 (en) * | 2005-02-15 | 2006-08-16 | Genap B V | Method for applying a reservoir, as well as a reservoir, a bag, an assembly and a method for manufacturing an inner lining. |
| EP1691010A3 (en) * | 2005-02-15 | 2010-11-24 | Genap B.V. | Method for building a reservoir, and a reservoir, a bag, an assembly and a method for manufacturing a lining |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4306668A (en) | Bulk storage silo | |
| US5636764A (en) | Flexible bulk container apparatus and discharge method | |
| US6662962B2 (en) | Flexible liner for shipping bulk load inside shipping containers and method for placing said flexible liner for shipping bulk load into a shipping container | |
| US4124136A (en) | Container liner frame support kit | |
| US5076710A (en) | Spread strap flexible bulk container | |
| US9193523B2 (en) | Reinforcing or restraining strap or gusset system for rear wall member of bulk material cargo container liner | |
| US6523482B2 (en) | Bulk material transport system | |
| US4823707A (en) | Apparatus for covering an open-topped vehicle | |
| US4221296A (en) | Shipping assembly | |
| US6543659B2 (en) | Collapsible container for a truck bed | |
| US5073035A (en) | Bulk carrying bag | |
| US8141323B2 (en) | Apparatus and system to increase capacity of granular material storage structures | |
| JPH0624486A (en) | Improved type flexible insert for approximately rectangular container | |
| US4092051A (en) | Multi-purpose freight vehicle | |
| KR101688098B1 (en) | Tonbaek production methods to mesh | |
| US5203633A (en) | Spread strap flexible bulk container | |
| US5165802A (en) | Spread strap flexible bulk container | |
| US5653572A (en) | Conveyor sheet cargo container and method | |
| US5975642A (en) | System for transporting and unloading dry chemicals | |
| CA1177218A (en) | Bulk storage silo | |
| US5158367A (en) | Spread strap flexible bulk container | |
| US3172740A (en) | Portable horizontal silo and feed dryer | |
| JP3395954B2 (en) | Truck and granular material transport container, skeletal frame therefor, and method of folding and storing them | |
| US5558486A (en) | Snowmobile trailer with front gravel guards | |
| EP0732249A1 (en) | Device for the protection of plants |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |