Efficient dolomite magnetic separation device

Abstract

The invention provides an efficient dolomite magnetic separation device and relates to the technical field of dolomite crushing and magnetic separation, the efficient dolomite magnetic separation device comprises an outer cylinder, an inner cylinder and swing arms, the centers of the swing arms are located in the outer cylinder and rotationally connected with the centers of the two ends of the outer cylinder, and the centers of the two ends of the inner cylinder are rotationally connected with the ends, on the same horizontal line, of the two swing arms; the other end of the swing arm is connected with a shaft body penetrating from the inside of the outer cylinder to the outside of the outer cylinder, arc-shaped sliding grooves for guiding the shaft body to slide are formed in the two ends of the outer cylinder, the shaft body is connected with a driving mechanism, and the driving mechanism can drive the inner cylinder to swing in the outer cylinder through the swing arm; according to the stone crushing device, stones can be extruded and crushed through eccentric swing of the inner cylinder relative to the outer cylinder, the stones with different sizes can be crushed at the same time, the crushing efficiency of the stones is improved, and the probability of repeated crushing of the stones is reduced; and metal in the crushed ore can be adsorbed through a first magnetic sheet and a second magnetic sheet.

Description

Technical Field

[0001] The invention relates to the technical field of dolomite crushing and magnetic separation, and in particular to a dolomite high-efficiency magnetic separation device. Background Art

[0002] Dolomite is a carbonate mineral. Dolomite is the main mineral component of dolomite and dolomitic limestone. Dolomite can be used in building materials, ceramics, glass and refractory materials, chemicals, agriculture, environmental protection, energy conservation and other fields. It is mainly used as alkaline refractory materials and flux for blast furnace ironmaking, production of calcium magnesium phosphate fertilizer and preparation of magnesium sulfate, as well as ingredients for the production of glass and ceramics.

[0003] At present, there are many types of uses for dolomite. Dolomite is an ore with a large volume. Dolomite needs to be crushed before it can form a powder. Dolomite is mixed with impurities such as iron and manganese, which affects the purity of dolomite, and then affects the purity of dolomite in the fields of construction, metallurgy or glass manufacturing. Usually, ore crushing uses a flat extrusion crushing mechanism to crush the stone. When the flat crushing mechanism crushes a larger stone, the gap left by the flat crushing mechanism will be larger, and stones slightly smaller than the stone may fall from the gap of the flat crushing mechanism. It is necessary to repeatedly add the stone into the flat crushing mechanism for crushing, which affects the overall crushing and magnetic separation efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a dolomite high-efficiency magnetic separation device to solve the problem of low efficiency of the stone crushing mechanism.

[0005] Based on the technical problems existing in the background technology, the present invention proposes a dolomite high-efficiency magnetic separation device, comprising an outer cylinder, an inner cylinder and a swing arm, the center of the swing arm is inside the outer cylinder and is rotatably connected to the centers at both ends of the outer cylinder, the centers at both ends of the inner cylinder are rotatably connected to one end of the same horizontal line of the two swing arms, the other end of the swing arm is connected to a shaft body extending from the inside of the outer cylinder to the outside of the outer cylinder, both ends of the outer cylinder are provided with arc-shaped slide grooves for guiding the sliding of the shaft body, the shaft body is connected to a driving mechanism, and the driving mechanism can drive the inner cylinder to swing in the outer cylinder through the swing arm.

[0006] Preferably, the rotation axis of the inner cylinder relative to the swing arm is located below the rotation axis of the swing arm relative to the outer cylinder.

[0007] Preferably, the shaft body is connected with a disc coaxial with the outer cylinder, and the disc fits the outer end surface of the outer cylinder and blocks the arc-shaped sliding groove.

[0008] Preferably, the exterior of the outer cylinder is supported by a bracket.

[0009] Preferably, the driving mechanism includes a reciprocating motor, a turntable and a connecting rod. The reciprocating motor is mounted on a bracket. The turntable is connected to the driving end of the reciprocating motor and is parallel to the rotation axis of the inner cylinder. A connecting shaft is eccentrically connected to the turntable. The two ends of the connecting rod are respectively rotatably connected to the connecting shaft and the shaft body. The connecting rod is always perpendicular to the ground.

[0010] Preferably, a plurality of first magnetic sheets are distributed on the outer side surface of the inner cylinder, and a plurality of second magnetic sheets that cooperate with and are pressed together with the first magnetic sheets are arranged on the inner side surface of the outer cylinder.

[0011] Preferably, a feed port is disposed above the outer cylinder, and a discharge port is disposed below the outer cylinder.

[0012] Compared with the prior art, the dolomite high-efficiency magnetic separation device proposed in the present invention adopts the above technical solution and achieves the following technical effects:

[0013] In the present invention, the stones can be squeezed and crushed by eccentrically swinging the inner cylinder relative to the outer cylinder, and stones of different volumes can be crushed at the same time. The crushed stones can be placed in a smaller gap between the inner cylinder and the outer cylinder for crushing, thereby improving the crushing efficiency of the stones and reducing the probability of repeated crushing of the stones. In the process of crushing the stones, the present invention can also adsorb the metal in the crushed ore through the first magnetic sheet and the second magnetic sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the inner cylinder of the present invention being placed at the bottom of the outer cylinder;

[0016] Figure 3 It is a schematic diagram of the inner cylinder swinging in the outer cylinder of the present invention;

[0017] Figure 4 It is a schematic diagram of the outer cylinder structure of the present invention.

[0018] In the figure: 1. outer cylinder; 2. inner cylinder; 3. swing arm; 4. shaft body; 11. arc-shaped slide groove; 5. driving mechanism; 15. disk; 6. bracket; 51. reciprocating motor; 52. turntable; 53. connecting rod; 521. connecting shaft; 21. first magnetic piece; 12. second magnetic piece; 13. feed port; 14. discharge port. DETAILED DESCRIPTION

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] Example

[0022] Please refer to Figure 1-Figure 4 The present invention proposes a dolomite high-efficiency magnetic separation device, comprising an outer cylinder 1, an inner cylinder 2 and a swing arm 3. The center of the swing arm 3 is in the outer cylinder 1 and is rotatably connected to the centers of the two ends of the outer cylinder 1. The centers of the two ends of the inner cylinder 2 are rotatably connected to one end of the same horizontal line of the two swing arms 3. The other end of the swing arm 3 is connected to a shaft body 4 that runs from the inner cylinder 1 to the outside of the outer cylinder 1. The two ends of the outer cylinder 1 are provided with an arc-shaped slide groove 11 for guiding the sliding of the shaft body 4. The shaft body 4 is connected to a driving mechanism 5. The driving mechanism 5 can drive the inner cylinder 2 to swing in the outer cylinder 1 through the swing arm 3. In this scheme, the driving mechanism 5 can drive the shaft body 4 to slide reciprocally along the arc-shaped slide groove 11, and the shaft body 4 slides along the arc-shaped slide groove 11. When the inner cylinder 2 is in motion, the end of the swing arm 3 away from the shaft body 4 will swing in the outer cylinder 1, and then the inner cylinder 2 will swing around the bottom of the outer cylinder 1 near the inner cylinder 2. There is an interlayer between the inner cylinder 2 and the outer cylinder 1, and the smallest interlayer spacing is located between the bottom of the inner cylinder 2 and the bottom of the outer cylinder 1, and the interlayer spacing gradually increases from the bottom to the top. When the inner cylinder 2 swings, with the vertical axis of symmetry as the reference line, the interlayer spacing on one side of the axis of symmetry becomes smaller, which will squeeze and crush the stone, and the interlayer spacing on the other side of the axis of symmetry becomes larger, which will make the stone fall downward, but the increased interlayer spacing cannot be too large, so as to realize the swing of the inner cylinder 2 relative to the outer cylinder 1 to squeeze and crush the stone.

[0023] In a specific embodiment, refer to Figure 2 , Figure 3, the rotation axis of the inner cylinder 2 relative to the swing arm 3 is located below the rotation axis of the swing arm 3 relative to the outer cylinder 1; in this solution, the inner cylinder 2 has its own weight, so it will hang below the axis of the outer cylinder 1; further, when the axis of the inner cylinder 2 is located below the axis of the outer cylinder 1, the interlayer space between the inner cylinder 2 and the bottom of the outer cylinder 1 is the smallest, which can facilitate the stone to enter a smaller interlayer for crushing under the action of gravity after being crushed.

[0024] In a specific embodiment, refer to Figure 1 The shaft body 4 is connected to a disc 15 coaxial with the outer cylinder 1. The disc 15 fits the outer end surface of the outer cylinder 1 and blocks the arc chute 11. The two ends of the inner cylinder 2 are spaced apart from the two ends of the outer cylinder 1. Therefore, gravel may splash out of the arc chute 11. The disc 15 can prevent gravel splashed out of the arc chute 11 from injuring people.

[0025] In a specific embodiment, refer to Figure 1 The outside of the outer cylinder 1 is supported by a bracket 6.

[0026] In a specific embodiment, refer to Figure 1 The driving mechanism 5 includes a reciprocating motor 51, a turntable 52 and a connecting rod 53. The reciprocating motor 51 is installed on the bracket 6. The turntable 52 is connected to the driving end of the reciprocating motor 51 and is parallel to the rotation axis of the inner cylinder 2. A connecting shaft 521 is eccentrically connected to the turntable 52. The two ends of the connecting rod 53 are respectively rotatably connected to the connecting shaft 521 and the shaft body 4, and the connecting rod 53 is always vertical to the ground. In this solution, the reciprocating motor 51 drives the turntable 52 to rotate, and the turntable 52 can rotate through the connecting shaft 521. The connecting shaft 521 can drive the shaft body 4 to reciprocate along the arc-shaped slide groove 11 through the connecting rod 53, so that the inner cylinder 2 can swing relative to the outer cylinder 1 to squeeze and crush the stones.

[0027] In a specific embodiment, refer to Figure 1 A plurality of first magnetic sheets 21 are distributed on the outer side surface of the inner cylinder 2, and a plurality of second magnetic sheets 12 are arranged on the inner side surface of the outer cylinder 1 to cooperate with the first magnetic sheets 21 for extrusion. The first magnetic sheets 21 and the second magnetic sheets 12 can increase the edges and corners on both sides of the interlayer, making it easier to crush stones and achieve a rapid crushing effect. At the same time, during the crushing process, the metal in the stone can be adsorbed to reduce the metal content in the stone.

[0028] In a specific embodiment, refer to Figure 2 , Figure 3 A feed port 13 is provided above the outer cylinder 1 , and a discharge port 14 is provided below the outer cylinder 1 .

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dolomite high-efficiency magnetic separation device, characterized in that: The invention comprises an outer cylinder (1), an inner cylinder (2) and a swing arm (3); the center of the swing arm (3) is inside the outer cylinder (1) and is rotatably connected to the centers of the two ends of the outer cylinder (1); the centers of the two ends of the inner cylinder (2) are rotatably connected to one end of the same horizontal line of the two swing arms (3); the other end of the swing arm (3) is connected to a shaft body (4) which passes through the inner cylinder (1) to the outside of the outer cylinder (1); arc-shaped sliding grooves (11) for guiding the sliding of the shaft body (4) are arranged at the two ends of the outer cylinder (1); the shaft body (4) is connected to a driving mechanism (5); and the driving mechanism (5) can drive the inner cylinder (2) to swing inside the outer cylinder (1) through the swing arm (3).

2. The dolomite high-efficiency magnetic separation device according to claim 1, characterized in that: The rotation axis of the inner cylinder (2) relative to the swing arm (3) is located below the rotation axis of the swing arm (3) relative to the outer cylinder (1).

3. The dolomite high-efficiency magnetic separation device according to claim 1, characterized in that: The shaft body (4) is connected to a disc (15) coaxial with the outer cylinder (1), and the disc (15) fits the outer end surface of the outer cylinder (1) and blocks the arc-shaped sliding groove (11).

4. The dolomite high-efficiency magnetic separation device according to claim 1, characterized in that: The exterior of the outer cylinder (1) is supported by a bracket (6).

5. The dolomite high-efficiency magnetic separation device according to claim 4, characterized in that: The driving mechanism (5) comprises a reciprocating motor (51), a rotating disk (52) and a connecting rod (53); the reciprocating motor (51) is mounted on a bracket (6); the rotating disk (52) is connected to the driving end of the reciprocating motor (51) and is parallel to the rotation axis of the inner cylinder (2); a connecting shaft (521) is eccentrically connected to the rotating disk (52); two ends of the connecting rod (53) are respectively rotatably connected to the connecting shaft (521) and the shaft body (4); and the connecting rod (53) is always perpendicular to the ground.

6. The dolomite high-efficiency magnetic separation device according to claim 3, characterized in that: A plurality of first magnetic sheets (21) are distributed on the outer side surface of the inner cylinder (2), and a plurality of second magnetic sheets (12) that cooperate with and are pressed against the first magnetic sheets (21) are arranged on the inner side surface of the outer cylinder (1).

7. The dolomite high-efficiency magnetic separation device according to claim 1, characterized in that: A feed port (13) is provided above the outer cylinder (1), and a discharge port (14) is provided below the outer cylinder (1).

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