An ore classification device

Abstract

The utility model provides a kind of ore grading device, including box, the lower part of the baffle box is equipped with the screen mesh plate being inclinedly arranged, the lateral wall of the box is equipped with coarse particle discharge gate, the box is equipped with multiple baffle being inclinedly arranged, the baffle is located above screen mesh plate and is arranged along baffle height direction, the side of the baffle is equipped with multiple guide vane corresponding with baffle one by one and being inclinedly arranged, the lateral wall of the box is equipped with air inlet, the top of the box is equipped with feeding port in the side close to baffle, the top of the box is equipped with feeding port and is located above baffle, the bottom of the box is equipped with medium particle discharge gate.The utility model is equipped with baffle and guide vane, smaller particles in ore particles are removed by preliminary air selection, can effectively prevent plugging screen mesh plate in subsequent screening process, and use effect is good;Ore is sorted into three levels, to meet different needs;Simple structure, low manufacturing cost.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal rolling technology and relates to an ore grading device. Background Technology

[0002] In the field of mineral processing, particle size classification of ore is a very common and important process. The main purpose of particle size classification is to classify ore particles according to their size to facilitate subsequent beneficiation, smelting, or processing. Through particle size classification, ores of different particle sizes can be properly processed, optimizing the efficiency of crushing, grinding, and beneficiation processes, while improving the recovery rate of valuable minerals and the quality of the final product.

[0003] Currently, the main methods for ore particle size classification include mechanical screening, hydraulic classification, and air classification. Among these, mechanical screening is the most widely used method. However, due to the presence of fine and ultrafine particles and moisture, problems such as screen clogging and the inclusion of fine particles often occur, affecting screening efficiency. Air classification is generally only suitable for classifying fine-particle materials and can only separate materials into two particle sizes, which cannot meet the process requirements of subsequent multi-particle-size production. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art of ore grading devices and to provide an ore grading device.

[0005] Therefore, the present invention adopts the following technical solution:

[0006] An ore grading device includes a box body. The lower part of the box body is provided with an inclined screening screen. A coarse particle discharge port is located on one end of the screening screen. Multiple inclined baffles are provided inside the box body, positioned above the screening screen and arranged along the height of the box. Multiple guide plates, each corresponding to a baffle and arranged at an inverted V-shape, are provided on one side of each baffle. An air inlet is located on the side wall of the box body, near the baffles. A feeding port is located at the top of the box body, above the baffles. A medium particle discharge port is located at the bottom of the box body.

[0007] Furthermore, the side wall of the box is provided with an air outlet, which is located near the guide plate. The air outlet is connected to an L-shaped exhaust pipe, and the end of the exhaust pipe away from the box forms a fine particle discharge port, which faces downwards.

[0008] Furthermore, a fan is provided at the air inlet.

[0009] Furthermore, the baffle forms an angle of 30-60 degrees with the horizontal plane.

[0010] Furthermore, the screening screen plate forms an angle of 30-60 degrees with the horizontal plane.

[0011] Furthermore, the lower part of the box has a tapered structure that is wider at the top and narrower at the bottom.

[0012] The beneficial effects of this utility model are as follows: by setting baffles and guide plates, smaller particles in the ore particles are removed through preliminary air separation, which can effectively prevent clogging of the screening screen in the subsequent screening process, and the effect is good; the ore is sorted into three grades to meet different needs; the structure is simple and the manufacturing cost is low. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] In the diagram, 1-box body, 2-screening mesh plate, 3-coarse particle discharge port, 4-baffle, 5-guide plate, 6-air inlet, 7-fan, 8-feeding port, 9-medium particle discharge port, 10-air outlet, 11-exhaust pipe, 12-fine particle outlet. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings:

[0016] like Figure 1As shown, an ore grading device includes a housing 1. A screening screen 2, inclined at the lower part of the housing 1, forms an angle of 30-60 degrees with the horizontal plane. In this embodiment, the screening screen 2 forms a 40-degree angle with the horizontal plane. The screening screen 2 is used to screen the ore. A coarse particle discharge port 3 is provided on the side wall of the housing 1, located at the lower end of the screening screen 2. After screening, larger ore particles on the upper surface of the screening screen 2 can move towards the coarse particle discharge port 3 under gravity and be discharged from the coarse particle discharge port 3. Multiple inclined baffles 4 are provided inside the housing 1, forming an angle of 30-60 degrees with the horizontal plane. In this embodiment, the baffles 4 form a 30-degree angle with the horizontal plane. The baffles 4 are located above the screening screen 2 and arranged along the height of the housing 1. Multiple baffles corresponding to each baffle 4 are provided on one side of the baffles and are inclined. The guide plate 5 and the corresponding baffle are arranged in an inverted V-shape. The side wall of the box 1 is provided with an air inlet 6, which is located near the baffle 5. A fan 7 is provided at the air inlet 6. The top of the box 1 is provided with a feeding port 8, which is located above the baffle 4. The ore raw material to be classified can be added into the box 1 through the feeding port 8. After the ore enters the box 1, it falls onto the baffle 4 and collides with the baffle 4, which facilitates the dispersion of the ore. Then, under the action of wind, the finer ore particles are blown away, thus achieving preliminary air separation. After the finer particles are blown away, it can also prevent the finer particles from falling onto the screening screen 2 and clogging the screening screen 2. The bottom of the box 1 is provided with a medium particle discharge port 9. The medium particles of ore after being screened by the screening screen 2 can be discharged through the medium particle discharge port 9. The lower part of the box 1 has a cone-shaped structure that is larger at the top and smaller at the bottom, so that all the medium particles of ore can be discharged from the medium particle discharge port 9.

[0017] In addition, the side wall of the housing 1 is provided with an air outlet 10. The air outlet 10 is located on the side close to the guide plate 5. The gas blown into the housing 1 by the fan 7 can be discharged from the air outlet 10 after the air direction is changed by the guide plate 5. The air outlet 10 is connected to an exhaust pipe 11 with an L-shaped structure. The end of the exhaust pipe 11 away from the housing 1 forms a fine material outlet 12, and the fine material outlet 12 faces downward.

[0018] The method of using this utility model is as follows:

[0019] First, turn on the blower 7 and send air into the housing 1 through the air inlet 6. Add the ore particles to be separated into the housing 1 through the feed inlet 8. After entering the housing 1, the ore falls onto the baffle 4 and collides with the baffle 4, thus dispersing the ore that has gathered together. Then, under the action of the blower 7, preliminary air separation is carried out, blowing away the finer ore particles, thus achieving preliminary air separation. The gas mixed with the finer ore particles flows towards the air outlet 10 under the action of the guide plate 5, enters the exhaust pipe 11 through the air outlet 10, and is finally discharged through the fine particle outlet 12. When in use, a collection box can be placed below the fine particle outlet 12 to collect the finer ore particles.

[0020] The remaining ore particles fall onto the screening screen plate 2 for screening. After screening, the larger ore particles on the upper surface of the screening screen plate 2 can move towards the coarse discharge port 3 under the action of gravity and be discharged from the coarse discharge port 3. The remaining ore particles fall to the bottom of the box 1 and are discharged through the medium discharge port 9. After preliminary air separation, smaller particles in the ore can be removed, which can effectively prevent the screening screen plate 2 from being blocked.

Claims

1. An ore classification device, characterized by, The utility model relates to a screening device, including box (1), the lower part of box (1) is equipped with the inclinedly arranged screen deck (2), the side wall of box (1) is equipped with coarse particle discharge gate (3), and the coarse particle discharge gate (3) is located one end of screen deck (2), a plurality of inclinedly arranged baffles (4) are equipped in box (1), the baffle (4) is located above screen deck (2) and is arranged along the height direction of blocking box, one side of baffle (4) is equipped with a plurality of corresponding baffle (4) and is inclinedly arranged guide vane (5), the guide vane (5) and corresponding baffle (4) are arranged in inverted v shape, the side wall of box (1) is equipped with air inlet (6), and the air inlet (6) is located close to baffle (4) side, the top of box (1) is equipped with feeding port (8), and the feeding port (8) is located above baffle (4), and the bottom of box (1) is equipped with medium particle discharge gate (9).

2. An ore classification device according to claim 1, characterised in that, The side wall of box (1) is equipped with air outlet (10), and the air outlet (10) is located close to guide vane (5) side, and the air outlet (10) is connected with the exhaust pipe (11) of L type structure, the one end of exhaust pipe (11) away from box (1) forms fine particle discharge gate (12), and fine particle discharge gate (12) is towards lower.

3. An ore classification device according to claim 1, characterised in that, Fan (7) is equipped at air inlet (6).

4. An ore sorting apparatus according to claim 1, characterised in that, The baffle (4) forms 30-60 degrees angle with horizontal plane.

5. An ore sorting apparatus as claimed in claim 1, wherein, The screen deck (2) forms 30-60 degrees angle with horizontal plane.

6. An ore sorting apparatus as claimed in claim 1, wherein, The lower part of box (1) is the conical structure of big up and small down.

Images