A screening device for alluvial gold mines

Abstract

The utility model discloses a screening device for placer, including sieve seat, be provided with sieve box on the sieve seat, the sieve box is provided with T type strip screening layer, first conical hole sieve plate and second conical hole sieve plate in turn along the height direction in, be provided with vibration subassembly on the sieve box, control the sieve box vibration along the sieve seat height direction through vibration subassembly, the utility model discloses the improvement to the existing screening device, the screen cloth in the sieve box is improved, and a layer T type manganese steel strip screening layer and double -deck conical hole sieve plate are designed, and T type manganese steel strip screening layer can effectively screen the big waste rock in placer, avoids the big ore to the conical hole sieve plate below and carries out the damage, and T type manganese steel strip is more easily wear -resisting compared with conical hole sieve plate, and the aperture of double -deck conical hole sieve plate is smaller in turn and can further screen the granular mineral in placer, guarantees screening effect.

Description

Technical Field

[0001] This utility model belongs to the field of placer screening technology, specifically to a screening device for placer gold mines. Background Technology

[0002] Mineral resources are products of the Earth's crust during its long-term formation, development, and evolution. They are formed by the accumulation of minerals in nature under specific geological conditions and through certain geological processes. Different geological processes can form different types of minerals. my country has a vast territory, well-developed river systems, and excellent geological conditions for gold mining, possessing abundant placer gold resources. Currently, the screening of mined placer gold deposits typically uses gravity separation.

[0003] In addition to gold, placer gold deposits also contain other heavy minerals. Before gravity separation, large pieces of waste rock in the placer gold deposit must be screened out to prevent the stones from clogging the screen of the gravity separation equipment. After screening, the placer gold deposit can enter the gravity separation operation. During screening, large pieces of waste rock and heavy minerals can easily cause damage to the screen. Therefore, it is necessary to design a screening device suitable for placer gold deposits. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a screening device for placer gold mines. This application provides the following technical solution:

[0005] A screening device for placer gold mining includes a screen base, on which a screen box is provided. Inside the screen box, a T-shaped bar screen layer, a first conical perforated screen plate, and a second conical perforated screen plate are arranged sequentially along the height direction. A vibration component is provided on the screen box to control the vibration of the screen box along the height direction of the screen base.

[0006] As an alternative or supplement to the above-mentioned screening device for placer gold mines, the screen base is inclined, with the higher side of the screen base being the feed inlet and the lower part of the second conical screen plate being the discharge outlet.

[0007] As an alternative or supplement to the above-mentioned screening device for placer gold mines, a filter groove is provided below the second conical perforated screen plate.

[0008] As an alternative or supplement to the above-mentioned screening device for placer gold mines, a flushing pipe is provided on the screen base.

[0009] As an alternative or supplement to the above-mentioned screening device for placer gold mines, the vibration assembly includes a vibration motor and vibration springs. The vibration motor is mounted on the screen box, and a set of vibration springs is provided on both sides of the screen base. The two sides of the screen box are respectively connected to the screen base through a set of vibration springs.

[0010] As an alternative or supplement to the above-mentioned screening device for placer gold mines, the T-shaped bar screen layer includes several uniformly arranged T-shaped screen bars, and the material of the T-shaped screen bars is manganese steel.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] This invention improves upon existing screening devices by modifying the screen mesh inside the screen box. It incorporates a single layer of T-shaped manganese steel bar screens and a double layer of conical perforated screen plates. The T-shaped manganese steel bar screens effectively screen large pieces of waste rock in placer gold mines, preventing them from damaging the lower conical perforated screen plates. Furthermore, the T-shaped manganese steel bars are more wear-resistant than the conical perforated screen plates. The double-layered conical perforated screen plates, with progressively smaller apertures, further screen particulate minerals in the placer gold mines, ensuring optimal screening results.

[0013] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Reference numerals in the attached drawings: 1-screen base; 2-screen box; 3-T-type bar screen layer; 4-first conical hole screen plate; 5-second conical hole screen plate; 6-vibration motor; 7-vibration spring; 8-filter tank. Detailed Implementation

[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] Please refer to Figure 1 As shown, this embodiment provides a screening device for placer gold mines, including a screen base 1, a screen box 2 on the screen base 1, and a T-shaped bar screen layer 3, a first conical hole screen plate 4 and a second conical hole screen plate 5 arranged sequentially along the height direction inside the screen box 2. A vibration component is provided on the screen box 2 to control the screen box 2 to vibrate along the height direction of the screen base 1.

[0021] The screen base 1 is inclined, with the higher side of the screen base 1 serving as the feed inlet and the lower part of the second conical perforated screen plate 5 serving as the discharge outlet; a filter groove 8 is provided below the second conical perforated screen plate 5; a flushing pipe is provided on the screen base 1; the vibration assembly includes a vibration motor 6 and vibration springs 7, the vibration motor 6 is provided on the screen box 2, and a set of vibration springs 7 is provided on both sides of the screen base 1, and both sides of the screen box 2 are respectively connected to the screen base 1 through a set of vibration springs 7; the T-shaped bar screen layer 3 includes several evenly arranged T-shaped screen bars, and the material of the T-shaped screen bars is manganese steel.

[0022] In the above embodiments, such as Figure 1The image shows a screening device for placer gold ore according to this utility model. The screening device includes a screen base 1, which supports the entire device. The screen base 1 is inclined, with the higher side being the feed inlet. A screen box 2 is installed on the screen base 1, with the feed inlet above the screen box 2. Inside the screen box 2, a T-shaped bar screen layer 3, a first conical perforated screen plate 4, and a second conical perforated screen plate 5 are arranged in sequence. The T-shaped bar screen layer 3 is composed of several T-shaped screen bars, which are evenly installed inside the screen box 2. A certain gap is left between two T-shaped screen bars to block large pieces of ore. Below the T-shaped bar screen layer 3 are the first conical perforated screen plate 4 and the second conical perforated screen plate 5. The two have the same structure, only with different apertures. The first conical perforated screen plate 4 and the second conical perforated screen plate can further screen the sand and gravel ore.

[0023] This invention features a vibration assembly installed on the screen box 2, consisting of a vibration motor 6 and vibration springs 7. The vibration motor 6 is installed inside the screen box 2, and the vibration springs 7 are in two sets, connected to both sides of the screen box 2 and both sides of the screen base 1 respectively. When the vibration motor 6 is working, it can drive the screen box 2 to vibrate on the screen base 1. At the same time, a flushing pipe is installed on the screen base 1. When placer gold ore is poured in from the feed inlet, the water through the flushing pipe carries the placer gold ore into the screening chamber. Simultaneously, the force of the vibration motor 6 and the vibration springs 7 causes the screen box 2 to jump and vibrate up and down on the screen base 1. The water flow can quickly separate the placer gold ore. During vibration, the placer gold ore can be screened and separated step by step. The screened material falls into the bottom filter tank 8. After a certain period of collection, the material in the filter tank 8 can be washed and screened again for recycling.

[0024] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A screening device for placer gold ore, characterized in that: The screen includes a screen base, on which a screen box is provided. Inside the screen box, a T-shaped strip screen layer, a first conical hole screen plate, and a second conical hole screen plate are arranged sequentially along the height direction. A vibration component is provided on the screen box to control the vibration of the screen box along the height direction of the screen base.

2. The screening device for placer gold ore according to claim 1, characterized in that: The screen base is inclined, with the higher side of the screen base being the feed inlet and the lower part of the second conical screen plate being the discharge outlet.

3. A screening device for placer gold ore according to claim 1, characterized in that: A filter groove is provided below the second conical sieve plate.

4. A screening device for placer gold ore according to claim 1, characterized in that: The screen base is equipped with a flushing pipe.

5. A screening device for placer gold ore according to claim 1, characterized in that: The vibration assembly includes a vibration motor and vibration springs. The vibration motor is mounted on the screen box, and a set of vibration springs is provided on both sides of the screen base. The two sides of the screen box are respectively connected to the screen base through a set of vibration springs.

6. A screening device for placer gold ore according to claim 1, characterized in that: The T-shaped bar screen layer comprises several evenly arranged T-shaped screen bars, and the T-shaped screen bars are made of manganese steel.

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