Temporary sealing device of underground ore storage bin hopper

Abstract

The utility model belongs to the technical field of mining equipment, and relates to a temporary sealing device of an underground ore storage bin hopper, which comprises a lifting lug, a framework, a wedge-shaped sealing piece, a steel plate and a rubber ring, the wedge-shaped sealing piece is fixed in an internal space formed by the framework through welding, and the lifting lug is fixed at the top end of the wedge-shaped sealing piece. The surfaces of the wedge-shaped sealing piece and the framework are covered with steel plates, the rubber ring is fixed to the periphery of the wedge-shaped sealing piece through an adhesive, and when the device is installed to an ore storage bin hopper opening through hoisting equipment, the rubber ring is used for filling a gap between the wedge-shaped sealing piece and the ore storage bin hopper opening so as to achieve sealing. The sealing device has the advantages of being compact in structure, easy and convenient to operate, good in sealing effect and high in bearing capacity, and provides reliable safety guarantee for underground operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mine exploitation equipment technical field relates to a kind of temporary closure device of underground mine bin hopper. BACKGROUND

[0002] At present, underground mine bin funnel is mainly used to receive the ore falling from the original mine bin and transport it to the vibration crushing device. Since the depth of the original mine bin usually reaches hundreds of meters, the impact force generated when the ore falls is extremely large, which causes the funnel to be easily damaged, so personnel often need to enter the funnel for maintenance or replacement of parts. Under the prior art, a piece of iron plate is usually selected to be lowered to the mine bin funnel opening at the top of the mine bin using lifting equipment for closure to prevent the inside of the mine bin from collapsing, but this iron plate closure method has the problems of instability, easy shaking, easy deformation, poor closure. SUMMARY

[0003] The present application provides a kind of temporary closure device of underground mine bin hopper, with the effect of improving closure effect and bearing capacity, ensuring equipment stability and protecting maintenance personnel safety.

[0004] To achieve the above technical purpose, the technical scheme adopted by the present application is a kind of temporary closure device of underground mine bin hopper, including lifting lug, framework, wedge-shaped body closure, steel plate and rubber ring, the wedge-shaped body closure is fixed in the internal space formed by welding the framework, the lifting lug is fixed at the top end of the wedge-shaped body closure, the surface of the wedge-shaped body closure and the framework is covered with the steel plate, the rubber ring is fixed on the periphery of the wedge-shaped body closure by adhesive, when the device is installed to the mine bin funnel opening by lifting equipment, the rubber ring is used to fill the gap between the wedge-shaped body closure and the mine bin funnel opening to realize sealing.

[0005] Further, the upper part of the wedge-shaped body closure is a four-sided pyramid.

[0006] Further, the lower part of the wedge-shaped body closure is a four-sided isosceles trapezoidal body.

[0007] Further, the maximum cross-sectional dimension of the wedge-shaped body closure is smaller than the size of the mine bin funnel opening.

[0008] Further, the rubber ring is made of rubber material.

[0009] Further, the framework is made of high-hardness channel steel, and has the same shape as the wedge-shaped body closure, for supporting and fixing the wedge-shaped body closure.

[0010] Further, the steel plate is made of high-hardness and corrosion-resistant steel material, for enhancing the stability and corrosion resistance of the device.

[0011] Further, a hoisting winch and a steel wire rope are further included, the steel wire rope hoists and installs the whole device through the hoisting winch and the lifting lug.

[0012] Advantages

[0013] 1. Significantly improve safety

[0014] The closure device effectively prevents ore from collapsing and spilling in the hopper through the close combination of the wedge-shaped closure and the rubber ring, not only keeping the working environment clean, but also greatly reducing the risk of equipment damage and personnel casualties caused by ore collapse.

[0015] 2. Excellent sealing ability and strong load-bearing capacity

[0016] The rubber ring of the closure device is made of rubber material with excellent elasticity and wear resistance, which can maintain good sealing effect in the extreme environment of the mine. The skeleton of the device is made of high-strength channel steel, and the outer surface is covered with wear-resistant steel plate, which has excellent load-bearing capacity and can withstand the weight and impact force of the ore, ensuring the stability and reliability of the closure device during operation.

[0017] 3. Easy to operate

[0018] The top lifting lug of the wedge-shaped closure can be connected to the lifting device through the steel wire rope, and the operator can perform lifting, lowering and fixing actions at a safe distance, which not only reduces the operation risk, but also improves the operation efficiency. At the same time, the combination of the four tapered bodies and the four isosceles trapezoidal bodies of the wedge-shaped closure makes the device adapt to different shapes and sizes of mine bin funnel, reducing the device use cost and maintenance difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures can be represented by a like numeral. For purposes of clarity, not every component can be called out in every drawing. There is now being described, by way of example, embodiments of various aspects of the present application with reference to the accompanying drawings, in which:

[0020] Figure 1 A structural schematic diagram of a temporary closure device for a mine bin hopper is shown;

[0021] Figure 2 A schematic diagram of the installation of the temporary closure device for the mine bin hopper is shown;

[0022] Figure 3 A structural schematic diagram of the rubber ring of the temporary closure device for the mine bin hopper is shown;

[0023] In the figure, 1, lifting lug; 2, skeleton; 3, wedge-shaped body closure; 4, rubber ring; 5, steel plate; 6, mine bin funnel mouth; 7, bin wall; 8, hoisting winch; 9, steel wire rope. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the usual meaning by those skilled in the art to which the utility model belongs.

[0025] The technical principle of the utility model is mainly based on the special geometric shape of the wedge-shaped body closure, the supporting action of the high-strength skeleton, the reinforcing effect of the steel plate and the sealing characteristics of the rubber ring. These elements jointly constitute a high-efficiency and stable temporary closure device for the underground mine bin hopper.

[0026] 1. Special geometric shape of wedge-shaped body closure

[0027] The upper part of the wedge-shaped body closure 3 is designed as a four-sided conical body. This design not only provides a convenient central suspension point for the hoisting of the device, but more importantly, its unique geometric shape can effectively prevent the accumulation of falling materials at this point. The inclined surface of the cone can guide the materials to slide to the four sides, thereby avoiding the direct impact of the materials on the closure device, enhancing the safety of the device.

[0028] The lower part of the wedge-shaped body closure 3 is designed as a four-sided isosceles trapezoidal body. This design is based on the actual shape of the lower neck of the underground chute. The upper and lower bases of the isosceles trapezoid are parallel, and the two sides are equal in length. Such a design ensures that the device can smoothly and stably enter and fit the lower neck of the chute, achieving good sealing effect.

[0029] 2. Supporting principle of high-strength skeleton

[0030] The skeleton 2 part of the device uses high-strength channel steel material. This material has excellent supporting capacity and anti-deformation performance. The design of the skeleton 2 fully considers the complexity of the underground environment and the various external forces that the closure device needs to withstand. Through reasonable structure layout and material selection, it is ensured that the skeleton 2 can stably support and fix the wedge-shaped body closure 3, preventing it from deforming or displacing during underground operation.

[0031] 3. Reinforcing effect of steel plate

[0032] In order to further enhance the strength and stability of the device, the surfaces of the framework 2 and the wedge-shaped closure 3 are covered with a layer of steel plate 5. This layer of steel plate 5 not only effectively resists the erosion and wear of the device in complex underground environments, but also improves the carrying capacity of the device, ensuring its stable performance during long-term operation.

[0033] 4. Sealing principle of rubber ring

[0034] A circle of wear-resistant and high-elasticity rubber ring 4 is provided on the periphery of the wedge-shaped closure 3. This rubber ring 4 plays a crucial role in the installation process of the device. When the device is hoisted to the mine hopper mouth 6 and slowly lowered, the rubber ring 4 will gradually unfold and tightly fit the mine hopper mouth 6 due to the obstruction of the mine hopper mouth 6. Due to the excellent elasticity and wear resistance of the rubber ring 4, it can effectively fill the small gap between the wedge-shaped closure 3 and the mine hopper mouth 6, thereby achieving good sealing effect. This sealing method not only effectively prevents the leakage of materials from the mine hopper mouth, but also isolates the external environment from the underground operation, ensuring the safety and efficiency of the operation.

[0035] The technical scheme adopted by the present application is a kind of temporary sealing device of underground mine hopper, including lifting lug, framework, wedge-shaped closure, steel plate and rubber ring, the wedge-shaped closure is fixed in the internal space formed by welding the framework, the lifting lug is fixed at the top end of the wedge-shaped closure, the surface of the wedge-shaped closure and the framework is covered with the steel plate, the rubber ring is fixed on the periphery of the wedge-shaped closure by adhesive, when the device is installed to the mine hopper mouth by hoisting equipment, the rubber ring is used to fill the gap between the wedge-shaped closure and the mine hopper mouth to realize sealing.

[0036] Further, the upper part of the wedge-shaped closure is a four-sided pyramid.

[0037] Further, the lower part of the wedge-shaped closure is a four-sided isosceles trapezoidal body.

[0038] Further, the maximum cross-sectional dimension of the wedge-shaped closure is smaller than the size of the mine hopper mouth.

[0039] Further, the rubber ring is made of rubber material.

[0040] Further, the framework is made of high-hardness channel steel, and has the same shape as the wedge-shaped closure, for supporting and fixing the wedge-shaped closure.

[0041] Further, the steel plate is made of high-hardness and corrosion-resistant steel material, for enhancing the stability and corrosion resistance of the device.

[0042] Further, a hoist winch and a steel wire rope are also included, the steel wire rope hoists and installs the whole device through the hoist winch and the lifting lug.

[0043] Embodiment 1

[0044] The utility model provides a kind of temporary closure device of underground mine bunker hopper, its core purpose is to effectively solve the problems of stability lack, poor sealing effect, low bearing capacity and easy to deformation caused by traditional iron plate sealing mode.

[0045] The wedge-shaped body closure 3 is the core part of the device, the design of the upper four-face tapered body not only provides a convenient central suspension point for the hoisting of the device, but more importantly, it can effectively prevent the accumulation of collapsed materials at this point, thereby greatly reducing the impact force on the closure device and enhancing the safety of the device. The design of the lower four-face isosceles trapezoidal body is based on the actual shape of the lower necked portion of the underground chute to ensure that the device can smoothly and stably enter and fit the necked portion, achieving good sealing effect.

[0046] The skeleton 2 of the device is made of high-strength channel steel and has the same shape as the wedge-shaped body closure 3. The skeleton 2 not only has excellent support capacity, but also effectively fixes the wedge-shaped body closure 3, ensuring the stability of the entire device in the harsh underground environment. In addition, the surfaces of the skeleton 2 and the wedge-shaped body closure 3 are covered with a layer of high-strength and corrosion-resistant steel plate 5. This layer of steel plate 5 not only further enhances the strength and stability of the device, but also effectively resists the erosion and wear of the device in the complex underground environment.

[0047] The periphery of the wedge-shaped body closure 3 is also fixed with a layer of rubber ring 4 by adhesive. This layer of rubber ring 4 plays a crucial role in the installation process of the device. It can tightly fit the bunker funnel mouth 6 by the elasticity of the rubber material according to the different sizes of the bunker funnel mouth 6, effectively filling the small gap between the wedge-shaped body closure 3 and the bunker funnel mouth 6, and ensuring the sealing between the device and the bunker funnel mouth 6.

[0048] In actual operation, the operator hoists into position by hoist winch 8, suspends and fixes by steel wire rope 9 passing through the lifting lug 1 at the top end of the wedge-shaped body closure 3, and then hoists the entire device to the bottom bunker funnel mouth 6 from the bunker mouth for sealing and installation. Since the maximum cross-sectional dimension of the wedge-shaped body closure 3 is designed to be smaller than the size of the bunker funnel mouth 6, after the device is installed in place, the rubber ring 4 will expand due to the obstruction of the bunker funnel mouth 6, and its outer diameter will be larger than the outer diameter of the bunker funnel mouth 6, tightly fitting the bunker funnel mouth 6 and forming a complete and sealed space, effectively preventing material leakage from the underground bunker hopper and external environmental interference.

[0049] Although the utility model has disclosed as above with preferable embodiments, it is not used to limit the utility model. Those skilled in the art to which the utility model belongs can make various changes and decorations without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model is accurate according to the definition of the claims.

Claims

1. A temporary closure device for an underground mine bin, characterised in that, The device comprises a lug (1), a framework (2), a wedge-shaped closure (3), a steel plate (5) and a rubber ring (4), the wedge-shaped closure (3) is fixed in the internal space of the framework (2) by welding, the lug (1) is fixed on the top of the wedge-shaped closure (3), the surfaces of the wedge-shaped closure (3) and the framework (2) are covered with the steel plate (5), the rubber ring (4) is fixed on the periphery of the wedge-shaped closure (3) by adhesive, when the device is installed on the mine hopper mouth (6) by hoisting equipment, the rubber ring (4) is used to fill the gap between the wedge-shaped closure (3) and the mine hopper mouth (6) to achieve sealing.

2. A temporary closure device for an underground ore bin hopper as claimed in claim 1, characterised in that, The upper part of the wedge-shaped closure (3) is a four-sided pyramid.

3. A temporary closure device for an underground ore bin hopper as claimed in claim 2, characterised in that, The lower part of the wedge-shaped closure (3) is a four-sided isosceles trapezoidal body.

4. A temporary closure device for an underground ore bin hopper as claimed in claim 2, characterised in that, The maximum cross-sectional dimension of the wedge-shaped closure (3) is smaller than the size of the mine hopper mouth (6).

5. A temporary closure device for a mine shaft bin hopper as defined in claim 1, wherein, The rubber ring (4) is made of rubber material.

6. A temporary closure device for a mine stock bin in a mine shaft according to claim 1, characterized in that The framework (2) is made of high-hardness channel steel, which has the same shape as the wedge-shaped closure (3) and is used to support and fix the wedge-shaped closure (3).

7. A temporary closure device for a mine shaft bin hopper as defined in claim 1, wherein, The steel plate (5) is made of high-hardness and corrosion-resistant steel material, which is used to enhance the stability and corrosion resistance of the device.

8. A temporary closure device for a mine shaft bin hopper as defined in claim 1, wherein, It also comprises a hoisting winch (8) and a steel wire rope (9), the steel wire rope (9) passes through the hoisting winch (8) and the lug (1) to lift and install the whole device.

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