CA1156198A - Hopper and bag filling device - Google Patents
Hopper and bag filling deviceInfo
- Publication number
- CA1156198A CA1156198A CA000384642A CA384642A CA1156198A CA 1156198 A CA1156198 A CA 1156198A CA 000384642 A CA000384642 A CA 000384642A CA 384642 A CA384642 A CA 384642A CA 1156198 A CA1156198 A CA 1156198A
- Authority
- CA
- Canada
- Prior art keywords
- module
- discharge end
- sides
- wall portion
- hopper
- 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
Landscapes
- Basic Packing Technique (AREA)
Abstract
IMPROVED HOPPER AND BAG FILLING DEVICE
ABSTRACT
The hopper described is comprised of an enclosed module having a top, a bottom, sides and at least one discharge end. The module top has an opening therein to receive a supply of finely-divided solid material. The discharge end is comprised of a substantially planar bottom wall portion which extends outward from the bottom of the module to a height of at least 30 percent of that of the module which, together with the module sides, forms a discharge chute. The top portion of the discharge end is comprised of a substantially planar cover member which is pivotably attached to the module top and extends to meet the sides of the module and the top of the bottom wall portion of the discharge end.
The module has a portion around the periphery of the top, sides and bottom contiguous to the discharge end to receive and provide a sealing surface for a bag mouth. Preferably, the surface is substantially planar to facilitate receiving the bag mouth and allow the bag to completely enclose the discharge end and be externally attached to the body of the module, suitably be tightening a strap means around the bag mouth.
ABSTRACT
The hopper described is comprised of an enclosed module having a top, a bottom, sides and at least one discharge end. The module top has an opening therein to receive a supply of finely-divided solid material. The discharge end is comprised of a substantially planar bottom wall portion which extends outward from the bottom of the module to a height of at least 30 percent of that of the module which, together with the module sides, forms a discharge chute. The top portion of the discharge end is comprised of a substantially planar cover member which is pivotably attached to the module top and extends to meet the sides of the module and the top of the bottom wall portion of the discharge end.
The module has a portion around the periphery of the top, sides and bottom contiguous to the discharge end to receive and provide a sealing surface for a bag mouth. Preferably, the surface is substantially planar to facilitate receiving the bag mouth and allow the bag to completely enclose the discharge end and be externally attached to the body of the module, suitably be tightening a strap means around the bag mouth.
Description
1 1$6'198 IMPROVED HOPPER AND BAG FILLING DEVICE
BACKGROUND OF THE INVE~TION
The present invention relates to an improved hopper and bag filling device for finely-divided solid materials.
Concern for the environment in recent years has become an important factor in the development and modi-fication of industrial processes. Finely-divided par-ticulate materials have alway~ presented problems in collecting, handling and disposal because of dusting.
Heretofore, many industrial dusts and grinding wastes have been wetted, usually with water, during collec-tion to ~educe dusting and are recovered in the form of a sludge. The added weight of the water mùst be con-sidered in the transportation cost of the sludge to the ultimate disposal site, and the ~ludge or muck requires additiohal labor to load and unload from the transporta-tion vehicle. Subsequent drying of the sludge frees the particles, and the problem of dusting reoccurs, but at locations other than the collection point.
Many of the modifications of industrial processes in recent times have been to improve the environment by the removal and collection, commonly by electrolytlc 115~198 means, of finely-divided particulate materials from smoke, fumes or dusts which previously have been allowed to escape into the atmosphere. Thus, the demand for an efficient method of handling and disposing of finely-divided solid materials, such as fly ash, finely-divided carbon, industrial dusts and grinding wastes, is increasing as more and more of such materials are being collected at the point at which they were formerly released.
The present invention i9 particularly adapted to the collection, storing, transporting and disposal of finely-divided particulate materials which are easily distributed or dispersed in a gaseous medium, such as air. The ratio of surface area to volume of the par-ticles is generally large. Generally! the particles range in ~ize from about 0.2 to about 50 microns. Mate-rials composed of finely-divided particles have charac-teristics of a fluid, which complicates the problem of handling, as a small flow of the material results in dusting.
BRIEF DESCRIPTION OF THE INVENTION
The present hopper is designed to be placed at or near a source of finely-divided particulate material and utilized as a primary collector or receiver. After filling and sealing, the present hopper is readily trans-portable to a suitable disposal site. At the disposal site, a bag, suitably of heavy polyvinylchloride, is detachably secured to the discharge or chute end of the hopper. The hopper i9 then tipped to allow the hopper contents to flow into the bag in a controlled manner.
Subsequently, the bag is detached from the hopper, sealed and preferably buried or covered over with earth.
The present hopper is comprised of an enclosed module having a top, a bottom, sides and at least one discharge end. The module top has an opening therein to receive a supply of finely-divided solid material. The ,P
discharge end is comprised of a substantially planar bottom wall portion which extends outward from the bottom of the module to a height of at least 30 percent of that of the module and, more preferably, to a height between about 40 to about 60 percent of the module. The top portion of the discharge end is comprised of a sub-stant`ially planar cover member which is pivotably attached to the module top and extends to meet the sides of the module and the top of the bottom wall por-tion of the discharge end.
.
115619~
The module has a portion around the periphery of the top, sides and bottom contiguous to the discharge end to receive and provide a sealing surface for a bag mouth. Preferably, the surface is substantially planar to facilitate receiving the bag mouth and allow the bag to completely enclose the discharge end and be exter-nally attached to the body of the module, suitably by tightening a strap means around the bag mouth.
The top portion of the module may have a filter thereon adapted to allow air to pass through, but to prevent the passage of finely-divided solid materials.
DETAILED DESCRIPTION OF THE INVENTION
Figure 1 is a side elevation of the present hopper showing the enclosed module in position to be filled or transported.
Figure 2 is a front elevation in the position of Figure 1, showing the discharge end.
Figure 3 is a side elevation showing the hopper at the disposal site in position to discharge the con-tents into a receptical, such as a bag.
Looking now at Figure~ 1 and 2, the hopper is an enclosed module having a substantially flat planar top portion 11 and bottom portion 13. The front or discharge end of the hopper, generally shown as 15 consists of a substantially planar bottom wall portion 17 extending outward from bottom 13 at an angle of about 44. Pre-ferably, this angle ranges from about 30 to about 70 and, more preferably, between about 35 and about 60 and, most preferably, between about 40 and about 50.
The top portion of discharge end 15 consists of cover 19 pivotably or hingeably attached to top 11 and exten-ding to meet the top of bottom wall 17 and the module sides.
As shown, the rear 21, which is the end of the module opposite the discharge end lS, also ha~ a sub-stantially planar tapered-wall portion 23, similar to wall portion 17 of the discharge end. This configura-tion is preferred, in that it facilitates a controlled flow of the module contents through the discharge end when the rear of the module i3 raised. However, to per-form the primary function, that of receiving, storing and discharging finely-divided materials, the top and rear end of the present module may be fabricated of other cGnfigurations, e.g., top portion 11 may be bowed or curved upward and rear end 21 may be square or rounded, provided the top and rear ends are substan-tially air tight and, most preferably, rigid~
.. . ... _ , Top portion 11 has at least one intake port 25, preferably closeable, adapted to be attached in a 3ub-stantially air-tight manner to a pipe or conduit (not shown) to receive the finely-divided particulate mate-rial. Top portion 11 may be equipped with a filter port 27 housing a filter 29, preferably of a disposable type, which will allow the air to pass through and which will not pa~s the finely-divided particles~
After filling, the module is disconnected from the source of finely-divided particulate material, the intake port 25 closed or sealed and the unit trans-ported to the disposal site.
Figure 3 shows the`hopper at the disposal site.
Container 39, suitably a thicX polyvinylchloride bag, is detachably secured around the periphery of the module contiguous to the discharge end of the module by strap 33. Preferably, the container 39 has been previously positioned in a hole or ditch so that, after filling, it may be buried without further handling or movement.
Rear end 21 of the module is raised, suitably by a lift truck or crane, allowing discharge cover 19 to open by force of gravity and the contents of the module to flow along the inner face of outward extending wall 17 which, with the ~ide walls 3~ and 37, forms a chute directing It56198 the material i.n a controlled manner into bag 39. As can be seen from F~gure 3, cover 19 acts as a damper on the material flowing from the module. When the module is full and the end opposite the discharge end is ele-vated, cover 19 tends to stay in place by gravity until the module is tilted to a point where coVer 19 opens by gravity, allowing a flow of material into bag 39. As the module is gradually tilted, cover 19 by gravity gradually opens further, allowing additional flow of material into bag 39. Thus, in the initial portion of the.discharge operation, the discharge opening is rela-tively small, when the head of material in the module is large, and, as the head decreases, the discharge opening becomes larger. The result is that discharge into bag 39 is relatively uniform and substantially continuous, safeguarding against surges which may cause bag rupture.
In a particularly preferred embodiment, the end of module 11 opposite the discharge end has a tapered bottom wall portion 23, as shown in Fi~ures 1 and 2, to facilitate a smooth, uniform flow of material from the module.
While the module may be constructed of a number of materials, for example, sheet metals, fiber glass or 1 156~98 plastic, depending upon the type and under what condi-tions the finel~-divided feed materials are to be collected, sheet steel or iron are the most economical an~ versatile and are the preferred materials of con-struction.
After bag 39 has received the contents of the module, the mouth of bag 39 i8 detached from the module and the bag sealed. The fil7ed bag may be then buried in situ without further handling and the module redelivered to the source of finely-divided material to receive another load.
The foregoing description and embodiments are intended to illustrate the invention without limiting it thereby. It will be understood that various modifi-cations can be made in the invention without departing from the spirit or scope thereof.
BACKGROUND OF THE INVE~TION
The present invention relates to an improved hopper and bag filling device for finely-divided solid materials.
Concern for the environment in recent years has become an important factor in the development and modi-fication of industrial processes. Finely-divided par-ticulate materials have alway~ presented problems in collecting, handling and disposal because of dusting.
Heretofore, many industrial dusts and grinding wastes have been wetted, usually with water, during collec-tion to ~educe dusting and are recovered in the form of a sludge. The added weight of the water mùst be con-sidered in the transportation cost of the sludge to the ultimate disposal site, and the ~ludge or muck requires additiohal labor to load and unload from the transporta-tion vehicle. Subsequent drying of the sludge frees the particles, and the problem of dusting reoccurs, but at locations other than the collection point.
Many of the modifications of industrial processes in recent times have been to improve the environment by the removal and collection, commonly by electrolytlc 115~198 means, of finely-divided particulate materials from smoke, fumes or dusts which previously have been allowed to escape into the atmosphere. Thus, the demand for an efficient method of handling and disposing of finely-divided solid materials, such as fly ash, finely-divided carbon, industrial dusts and grinding wastes, is increasing as more and more of such materials are being collected at the point at which they were formerly released.
The present invention i9 particularly adapted to the collection, storing, transporting and disposal of finely-divided particulate materials which are easily distributed or dispersed in a gaseous medium, such as air. The ratio of surface area to volume of the par-ticles is generally large. Generally! the particles range in ~ize from about 0.2 to about 50 microns. Mate-rials composed of finely-divided particles have charac-teristics of a fluid, which complicates the problem of handling, as a small flow of the material results in dusting.
BRIEF DESCRIPTION OF THE INVENTION
The present hopper is designed to be placed at or near a source of finely-divided particulate material and utilized as a primary collector or receiver. After filling and sealing, the present hopper is readily trans-portable to a suitable disposal site. At the disposal site, a bag, suitably of heavy polyvinylchloride, is detachably secured to the discharge or chute end of the hopper. The hopper i9 then tipped to allow the hopper contents to flow into the bag in a controlled manner.
Subsequently, the bag is detached from the hopper, sealed and preferably buried or covered over with earth.
The present hopper is comprised of an enclosed module having a top, a bottom, sides and at least one discharge end. The module top has an opening therein to receive a supply of finely-divided solid material. The ,P
discharge end is comprised of a substantially planar bottom wall portion which extends outward from the bottom of the module to a height of at least 30 percent of that of the module and, more preferably, to a height between about 40 to about 60 percent of the module. The top portion of the discharge end is comprised of a sub-stant`ially planar cover member which is pivotably attached to the module top and extends to meet the sides of the module and the top of the bottom wall por-tion of the discharge end.
.
115619~
The module has a portion around the periphery of the top, sides and bottom contiguous to the discharge end to receive and provide a sealing surface for a bag mouth. Preferably, the surface is substantially planar to facilitate receiving the bag mouth and allow the bag to completely enclose the discharge end and be exter-nally attached to the body of the module, suitably by tightening a strap means around the bag mouth.
The top portion of the module may have a filter thereon adapted to allow air to pass through, but to prevent the passage of finely-divided solid materials.
DETAILED DESCRIPTION OF THE INVENTION
Figure 1 is a side elevation of the present hopper showing the enclosed module in position to be filled or transported.
Figure 2 is a front elevation in the position of Figure 1, showing the discharge end.
Figure 3 is a side elevation showing the hopper at the disposal site in position to discharge the con-tents into a receptical, such as a bag.
Looking now at Figure~ 1 and 2, the hopper is an enclosed module having a substantially flat planar top portion 11 and bottom portion 13. The front or discharge end of the hopper, generally shown as 15 consists of a substantially planar bottom wall portion 17 extending outward from bottom 13 at an angle of about 44. Pre-ferably, this angle ranges from about 30 to about 70 and, more preferably, between about 35 and about 60 and, most preferably, between about 40 and about 50.
The top portion of discharge end 15 consists of cover 19 pivotably or hingeably attached to top 11 and exten-ding to meet the top of bottom wall 17 and the module sides.
As shown, the rear 21, which is the end of the module opposite the discharge end lS, also ha~ a sub-stantially planar tapered-wall portion 23, similar to wall portion 17 of the discharge end. This configura-tion is preferred, in that it facilitates a controlled flow of the module contents through the discharge end when the rear of the module i3 raised. However, to per-form the primary function, that of receiving, storing and discharging finely-divided materials, the top and rear end of the present module may be fabricated of other cGnfigurations, e.g., top portion 11 may be bowed or curved upward and rear end 21 may be square or rounded, provided the top and rear ends are substan-tially air tight and, most preferably, rigid~
.. . ... _ , Top portion 11 has at least one intake port 25, preferably closeable, adapted to be attached in a 3ub-stantially air-tight manner to a pipe or conduit (not shown) to receive the finely-divided particulate mate-rial. Top portion 11 may be equipped with a filter port 27 housing a filter 29, preferably of a disposable type, which will allow the air to pass through and which will not pa~s the finely-divided particles~
After filling, the module is disconnected from the source of finely-divided particulate material, the intake port 25 closed or sealed and the unit trans-ported to the disposal site.
Figure 3 shows the`hopper at the disposal site.
Container 39, suitably a thicX polyvinylchloride bag, is detachably secured around the periphery of the module contiguous to the discharge end of the module by strap 33. Preferably, the container 39 has been previously positioned in a hole or ditch so that, after filling, it may be buried without further handling or movement.
Rear end 21 of the module is raised, suitably by a lift truck or crane, allowing discharge cover 19 to open by force of gravity and the contents of the module to flow along the inner face of outward extending wall 17 which, with the ~ide walls 3~ and 37, forms a chute directing It56198 the material i.n a controlled manner into bag 39. As can be seen from F~gure 3, cover 19 acts as a damper on the material flowing from the module. When the module is full and the end opposite the discharge end is ele-vated, cover 19 tends to stay in place by gravity until the module is tilted to a point where coVer 19 opens by gravity, allowing a flow of material into bag 39. As the module is gradually tilted, cover 19 by gravity gradually opens further, allowing additional flow of material into bag 39. Thus, in the initial portion of the.discharge operation, the discharge opening is rela-tively small, when the head of material in the module is large, and, as the head decreases, the discharge opening becomes larger. The result is that discharge into bag 39 is relatively uniform and substantially continuous, safeguarding against surges which may cause bag rupture.
In a particularly preferred embodiment, the end of module 11 opposite the discharge end has a tapered bottom wall portion 23, as shown in Fi~ures 1 and 2, to facilitate a smooth, uniform flow of material from the module.
While the module may be constructed of a number of materials, for example, sheet metals, fiber glass or 1 156~98 plastic, depending upon the type and under what condi-tions the finel~-divided feed materials are to be collected, sheet steel or iron are the most economical an~ versatile and are the preferred materials of con-struction.
After bag 39 has received the contents of the module, the mouth of bag 39 i8 detached from the module and the bag sealed. The fil7ed bag may be then buried in situ without further handling and the module redelivered to the source of finely-divided material to receive another load.
The foregoing description and embodiments are intended to illustrate the invention without limiting it thereby. It will be understood that various modifi-cations can be made in the invention without departing from the spirit or scope thereof.
Claims (4)
1. A hopper for receiving and discharging finely-divided solid materials comprising:
a). an enclosed module having a top, a bottom, sides and at least one discharge end, b). said top portion of said module having a close-able intake opening to receive a supply of finely-divided solid materials, and c). said discharge end comprised of a substantially planar bottom wall portion extending outward from the module bottom to a height of at least about 30 percent of said module, and a substan-tially planar top portion comprised of an openable cover pivotably attached to the module top and extending to meet said bottom wall portion and said module sides.
a). an enclosed module having a top, a bottom, sides and at least one discharge end, b). said top portion of said module having a close-able intake opening to receive a supply of finely-divided solid materials, and c). said discharge end comprised of a substantially planar bottom wall portion extending outward from the module bottom to a height of at least about 30 percent of said module, and a substan-tially planar top portion comprised of an openable cover pivotably attached to the module top and extending to meet said bottom wall portion and said module sides.
2. The hopper of claim 1 wherein the module has a por-tion around the periphery of the top, sides and bottom thereof contiguous to the discharge end and adapted to receive and provide a sealing surface for a bag mouth.
3. The module of claim 1 wherein the bottom wall of said discharge end extends outward from the bottom of the module at an angle of from about 30° to about 70°.
4. The module of claim 1 wherein the module has one discharge end and a closed end opposite said discharge end, said closed end comprised of a solid, substantially planar bottom wall portion extending outward from the module bottom and a solid, substan-tially planar top wall portion extending outward from the module top to meet said bottom wall portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22580281A | 1981-01-16 | 1981-01-16 | |
| US225,802 | 1981-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1156198A true CA1156198A (en) | 1983-11-01 |
Family
ID=22846304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000384642A Expired CA1156198A (en) | 1981-01-16 | 1981-08-26 | Hopper and bag filling device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1156198A (en) |
-
1981
- 1981-08-26 CA CA000384642A patent/CA1156198A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |