Filling and support container
The internal container with multiple chambers and external closures addresses safety concerns in existing containers by ensuring controlled mixing and expansion, enhancing safety and preventing leaks.
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- DSI SCHAUM CHEM SP ZOO
- Filing Date
- 2023-12-22
- Publication Date
- 2026-07-23
AI Technical Summary
Existing filling and support containers for mining and construction face issues with safety during use, transport, and storage due to uncontrolled mixing of components, leading to potential leaks and undesirable reactions.
A filling and support container with an internal container having multiple chambers separated by external closures, allowing precise volume adjustment and isolation of components, ensuring controlled mixing and expansion without air contact, thereby enhancing safety and preventing leaks.
The solution provides enhanced safety and controlled expansion by preventing uncontrolled mixing and leakage, ensuring efficient and safe use of the container during transport, storage, and application.
Smart Images
Figure US20260210249A1-D00000_ABST
Abstract
Description
RELATED APPLICATION DATA
[0001] This application is a § 371 National Stage Application of PCT International Application No. PCT / EP 2023 / 087528 filed Dec. 23, 2023 claiming priority to PL P.443352 filed Dec. 30, 2022.TECHNICAL FIELD
[0002] The subject of the invention is a filling and support container, provided for use in underground mining and construction, in particular for stabilizing mining supports, filling voids in the rock mass, and building dams or other engineering structures.BACKGROUND
[0003] Filled containers are used as mining supports or to fill voids in rock mass. Depending on the filling agent, such containers are made of either airtight materials or air-permeable materials. Cement-mineral mixtures or expansive materials, for example, are based on liquid resins, such as insulating and sealing phenolic foam, which require the use and mixing of two components, including a catalyst, and are used as filling agents. Mixed ingredients significantly increase their volume and create proper filling of the container. Currently, there are known mixtures whose volume increases even several dozen times. Polish invention application PL430700A, which will be referred to below, discloses specific examples of such known mixtures.
[0004] Polish utility model PL71266Y discloses a container, in particular a filling and support container, used for example, for filling voids in the rock mass. This container comprises a bag made of an air-permeable material, inside which there is a smaller, tight internal container made of polyethylene foil. A sealing latch is provided on the outside of the bag. The latch comprises a U-shaped profile with latching projections on its longitudinal inner edges and a locking bar with longitudinal latching projections on its outer surface provided for placing in the opening of the U-shaped profile. The sealing latch is located outside the bag, and the bag with the internal container is placed between the U-shaped profile and the locking bar, thanks to which the sealing latch divides the capacity of the internal container into two chambers isolated one from another. The first chamber includes a first component of the expansive mixture, and the second chamber includes a second component of the mixture. Once the sealing latch is open and the components are mixed, the container is filled with the expansive material.
[0005] A similar construction of the container is disclosed in Polish invention application PL430700A, and this description additionally discloses a design of a container, which contains only an outer bag, without an internal container, using an identical external sealing latch. Furthermore, it also discloses that the internal container may contain areas of reduced strength, which are located along the edges of the internal container, and through which the process of filling the container with the expansive mixture can be partially controlled.
[0006] Furthermore, a bag with an expansive mixture, used in mining and construction, is known from CN 102052082. This document discloses a bag with an additional internal two-chamber container, the chambers of which are separated by a central seal. Each chamber contains a component of two-component polyurethane foam. After tearing the central seal from the outside, the ingredients are mixed, thanks to which after some time the bag fills spontaneously with the expansive material. The problem in this solution concerns the efficiency, easiness and especially safety unsealing of the chambers in the inner container.SUMMARY
[0007] The aim of the invention is to provide a construction of a filling and support container that would increase safety in use, in transport and during storage, at the same time maintaining easy and simple use.
[0008] The invention concerns a filling and support container for use in mining and construction, the container comprising a bag for filling with expansive material. Inside the bag there is a tight, internal container with chambers, and the chambers of the internal container are separated by a closure placed outside the bag. The first component of the expansive mixture is placed in the first chamber, and the second component of the expansive mixture is placed in the second chamber. The essence of the invention is that the internal container has a larger volume than the external bag and further has at least one additional chamber separated by means of an external closure.
[0009] In one embodiment, the container includes three chambers separated by one external closure.
[0010] Alternatively, the container can have three chambers separated by two external closures.
[0011] In another embodiment, the additional chamber of the container separates the first chamber and the second chamber, which comprise the components of the expansive mixture.
[0012] The present filling and support container comprises at least three chambers in the internal container, which are isolated from each other by means of an external closure or closures. Due to this, it is possible to precisely determine the volume of the chambers of the internal container, adjusted to the volume of the components of the expansive mixture.
[0013] Moreover, the components of the expansive mixture fill the entire volume of a given chamber, with little or no air inside. As a result, degradation of components or undesirable reactions involving air are avoided.
[0014] Moreover, the additional chamber can isolate the chambers filled with the components of the expansive mixture from each other, which increases the safety of use of the container, because in the event of undesirable damage to one of the closures, there will be no uncontrolled mixing of the components and undesirable expansion of the container.
[0015] Furthermore, the larger volume of the internal container compared to the external bag allows for controlled, safe use of the container, because the internal container is not damaged when the material expands inside and there is no risk of the mixture leaking outside the container.BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The invention is presented in more detail in the following embodiments and in the attached drawing, in which
[0017] FIG. 1 illustrates the container in a schematic top view with two external closures.
[0018] FIG. 2 illustrates the container in another embodiment also made with two external closures.
[0019] FIG. 3 illustrates the container with one closure in a schematic longitudinal section,
[0020] FIG. 4 illustrates another embodiment of a container having one closure in a schematic longitudinal section.
[0021] FIG. 5 and FIG. 6 illustrate an exemplary external closure.DETAILED DESCRIPTION
[0022] A filling and support container 1 is provided for use in mining and construction, for example, for filling voids in rock mass, filling empty space between lining and the ceiling or side of mining excavations, or for quick construction of dams, enclosures and other engineering structures. The container 1 includes a bag 2 for filling with an expansive material mixture. The bag 2 may, for example, be made of polypropylene fabric, antistatic and flame retardant.
[0023] Inside the bag 2 there is a tight, internal container 2A, made of, for example, antistatic, flame-retardant, non-toxic polyethylene foil. The inner container 2A has a larger volume than the outer bag 2. In particular, the inner container 2A may be both wider and longer and have a greater height than the bag 2, or it may only have two or one of these dimensions larger than the outer bag 2.
[0024] The internal container 2A comprises three chambers 4, 5 and 6 separated by means of external closures 3. As the external closure 3 a known sealing latch shown in FIG. 5 and FIG. 6 can be used, having a U-shaped profile 3A with latch projections on the longitudinal inner edges and a locking bar 3B placed in the opening of this profile with longitudinal latch projections on its outer surface. However, it is possible to use any other external closure that will allow the chambers in the internal container 2 to be isolated from each other, and which allow for its simple unlocking in order to mix the components of the mixture.
[0025] In the embodiment shown in FIG. 1, two closures 3 are used, where the first component A of the expansive mixture is placed in the first sideway chamber 4, and the second component B of the expansive mixture is placed in the second sideway chamber 5. The central additional chamber 6 is empty, filled with air that does not come into contact with components A and B. The volume of chambers 4 and 5 can be adjusted, depending on the volume of components A and B placed in them.
[0026] After dismantling both closures 3, it is possible to mix components A and B and start the reaction. One can then place the container in the place intended for filling, and after several seconds the container fills automatically with the expansive material. The degree of filling depends on the proportions of components A and B used, and the type of expansive material. Since the inner container 2A has a larger capacity than the bag 2, no destruction of the inner container 2A will occur.
[0027] In the embodiment shown in FIG. 2, the internal container 2A of the container 1 is divided into three chambers 4, 5 and 6 separated by means of two external closures 3, where the chambers 4 and 5 containing components A and B are adjacent to each other, and the additional chamber 6 is adjacent to chamber 5.
[0028] In the embodiment shown in FIG. 3, only one closure 3 is used, and in order to obtain three chambers 4, 5, 6, the bag 2 with the inside container 2A is folded in half before installing the closure 3. In this embodiment, chambers 4 and 5 are isolated from each other there is an additional chamber 6 in the middle.
[0029] Another embodiment shown in FIG. 4 differs from the embodiment shown in FIG. 3 in that the chambers 4 and 5 containing components A and B are adjacent to each other, and an additional chamber 6 is adjacent to chamber 5.
[0030] The operation of the containers of the above embodiments is analogous to that of the first embodiment.
[0031] The scope of the invention also includes solutions with more than three chambers, for example four or five, separated by means of a closure or closures 3. This allows, for example, the use of expansive mixtures consisting of more than two components.
Claims
1. A filling and support container, for use in mining and construction, comprising:a bag arranged for being filled with an expansive mixture, an inside of the bag being provided with a tight, internal container with a plurality of chambers, wherein the chambers of the internal container are separated by a closure placed outside the bag, and wherein a first chamber of the plurality of chambers includes a first component of the expansive mixture, and a second chamber of the plurality of chambers includes a second component of the expansive mixture, an wherein the internal container has a larger volume than the external bag and wherein the plurality of chambers include at least one additional third chamber which is separated by means of an external closure.
2. The container according to claim 1, wherein the first, second and third chambers are separated by one external closure.
3. The container according to claim 1, wherein the first, second and third chambers are separated by two external closures.
4. The container according to claim 1, wherein the additional, third chamber is disposed between and separates the first chamber and the second chamber, which contain components of the expansive mixture.