Water-cooling pulsating vertical-ring high-gradient magnetic separator

Abstract

The utility model discloses a water-cooling pulsating vertical-ring high-gradient magnetic separator which comprises a shell, a magnetic roller, an ore inlet, a concentrate port, a tailing port and a water-cooling spraying device, the water cooling spraying device is arranged on the left side of the outer portion of the machine shell, after spraying liquid enters the heat exchange pipe, cooling liquid in the water cooling box takes away heat of the spraying liquid through the heat exchange pipe so as to reduce the temperature of the spraying liquid, then the low-temperature spraying liquid is pumped into the spraying pipe from the heat exchange pipe, and finally the low-temperature spraying liquid is sprayed to the surface of the magnetic roller after being atomized through the spraying head. And a large amount of heat can be absorbed in the evaporation process of the low-temperature spraying liquid, so that a good cooling effect on the magnetic roller is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic separators, in particular to a water-cooled pulsating vertical ring high-gradient magnetic separator. Background Technique

[0002] A high-gradient magnetic separator is a strong magnetic separator used for screening weakly magnetic minerals. The high-gradient magnetic separator is suitable for wet magnetic separation of materials such as magnetite, pyrrhotite, roasted ore, ilmenite, etc. with a particle size of less than 3 mm, and is also used for iron removal operations of materials such as coal, non-metallic minerals, and building materials. During the operation of the magnetic separator, a strong magnetic field is generated by passing an electric current through the coil to attract magnetic materials, so that materials with different magnetic properties are separated under the action of the magnetic field. However, a large amount of heat is generated during the operation of the electromagnetic magnetic separator, resulting in an increase in the temperature of the equipment, thereby affecting the efficiency and stability of the equipment.

[0003] The existing patent application number: CN202121761898.6, a cooling mechanism for a high-gradient magnetic separator, includes a base support shell installed at the bottom of the magnetic separator. The top of the base support shell is plugged with an arc-shaped support plate, and a discharge chute is opened at the center of the top of the arc-shaped support plate.

[0004] The above patent records a cooling mechanism applied to a high-gradient magnetic separator. The cooling mechanism is installed at the bottom of the magnetic separator and is difficult to directly dissipate heat from the magnetic roller inside the magnetic separator, and the cooling effect is relatively limited. For this reason, we propose a water-cooled pulsating vertical ring high-gradient magnetic separator to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a water-cooled pulsating vertical ring high-gradient magnetic separator to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A water-cooled pulsating vertical ring high-gradient magnetic separator, comprising a machine shell, a magnetic roller, a feed inlet, a concentrate outlet, a tailing outlet and a water-cooled spraying device. A magnetic roller is rotatably installed at the left part inside the machine shell. A feed inlet is provided at the top of the machine shell. A concentrate outlet is provided at the left part of the bottom surface of the machine shell. A tailing outlet is provided at the right part of the bottom surface of the machine shell. A water-cooled spraying device is arranged on the left side outside the machine shell. The water-cooled spraying device includes a water-cooling box, a coolant, a finned tube radiator, a drain pipe, a discharge pipe, a circulation pump, a heat exchange pipe, a water supply interface, a spray pipe and a spray head. The water-cooling box is bolted to the left side outside the machine shell. The coolant is loaded inside the water-cooling box. The bottom interface of the water-cooling box is connected with the drain pipe, and the end of the drain pipe is connected with the outlet of the finned tube radiator. The top interface of the water-cooling box is connected with the discharge pipe, and the end of the discharge pipe is connected with the inlet of the finned tube radiator. The coolant circulates between the water-cooling box and the finned tube radiator through the drain pipe and the discharge pipe. A circulation pump is installed at the left part of the finned tube radiator, and the circulation pump is connected to the inside of the discharge pipe. A heat exchange pipe is installed inside the water-cooling box, and the heat exchange pipe is completely immersed in the coolant. A water supply interface is arranged at the left part of the water-cooling box, and the water supply interface is communicated with the head end of the heat exchange pipe. A spray pipe is installed at the left part inside the water-cooling box, and the tail end of the heat exchange pipe is communicated with the spray pipe. A spray head is installed on the side of the spray pipe facing the magnetic roller.

[0007] Preferably, the total length of the heat exchange pipe is not less than 1.2 m.

[0008] Preferably, the number of the spray heads is not less than two, and the spray heads are equidistantly arranged on the surface of the spray pipe.

[0009] Preferably, the spray head adopts a fan-shaped atomizing spray head.

[0010] Preferably, the spray pipe is arc-shaped, and the arc of the spray pipe matches the arc of the surface of the magnetic roller.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] By arranging the water-cooled spraying device on the left side outside the machine shell, when the spraying liquid enters the heat exchange pipe, the coolant in the water-cooling box takes away the heat of the spraying liquid through the heat exchange pipe to reduce the temperature of the spraying liquid. Then the low-temperature spraying liquid is pumped into the spray pipe from the heat exchange pipe, and finally is atomized by the spray head and sprayed onto the surface of the magnetic roller. A large amount of heat can be absorbed during the evaporation process of the low-temperature spraying liquid, so as to achieve a good cooling effect on the magnetic roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view sectional structure schematic diagram of the utility model;

[0014] Figure 2Front view structural schematic diagram of the water-cooled spraying device of the present utility model;

[0015] Figure 3 Front view structural schematic diagram of the spray pipe of the present utility model;

[0016] Figure 4 Front view sectional structural schematic diagram of the casing of the present utility model.

[0017] In the figure: casing - 1, magnetic roll - 2, ore inlet - 3, concentrate outlet - 4, tailing outlet - 5, water-cooled spraying device - 6, water-cooling box - 61, coolant - 62, finned tube radiator - 63, drainage pipe - 64, discharge pipe - 65, circulation pump - 66, heat exchange tube - 67, water supply interface - 68, spray pipe - 69, spray head - 610. Specific implementation mode

[0018] In order to further explain the technical solution of the present utility model, the following will be elaborated in detail through specific embodiments.

[0019] Please refer to Figure 1 , the present utility model provides a water-cooled pulsating vertical ring high-gradient magnetic separator, which includes a casing 1, a magnetic roll 2, an ore inlet 3, a concentrate outlet 4, a tailing outlet 5 and a water-cooled spraying device 6. The magnetic roll 2 is rotatably installed at the left part inside the casing 1, the ore inlet 3 is arranged at the top of the casing 1, the concentrate outlet 4 is arranged at the left part of the bottom surface of the casing 1, the tailing outlet 5 is arranged at the right part of the bottom surface of the casing 1, and the water-cooled spraying device 6 is arranged on the left side outside the casing 1.

[0020] Please refer to Figures 2 - 4 , the present utility model provides a water-cooled pulsating vertical ring high-gradient magnetic separator. The water-cooled spraying device 6 includes a water-cooling box 61, a coolant 62, a finned tube radiator 63, a drainage pipe 64, a discharge pipe 65, a circulation pump 66, a heat exchange tube 67, a water supply interface 68, a spray pipe 69 and a spray head 610. The water-cooling box 61 is bolted and installed on the left side outside the casing 1. The coolant 62 is loaded inside the water-cooling box 61. The bottom interface of the water-cooling box 61 is connected with the drainage pipe 64, and the end of the drainage pipe 64 is connected with the outlet of the finned tube radiator 63. The top interface of the water-cooling box 61 is connected with the discharge pipe 65, and the end of the discharge pipe 65 is connected with the inlet of the finned tube radiator 63. The coolant 62 circulates between the water-cooling box 61 and the finned tube radiator 63 through the drainage pipe 64 and the discharge pipe 65. The circulation pump 66 is installed at the left part of the finned tube radiator 63, and the circulation pump 66 is connected to the inside of the discharge pipe 65. The heat exchange tube 67 is installed inside the water-cooling box 61, and the heat exchange tube 67 is completely immersed in the coolant 62. The water supply interface 68 is arranged at the left part of the water-cooling box 61, and the water supply interface 68 is communicated with the head end of the heat exchange tube 67. The spray pipe 69 is installed at the left part inside the water-cooling box 61, the tail end of the heat exchange tube 67 is communicated with the spray pipe 69, and the spray head 610 is installed on the side of the spray pipe 69 facing the magnetic roll 2.

[0021] Further explanation: The total length of the heat exchange tube 67 is not less than 1.2 m to ensure that the spraying liquid can stay in the water cooling box 61 for sufficient time for cooling.

[0022] Further explanation: The number of spray heads 610 is not less than two, and the spray heads 610 are equidistantly arranged on the surface of the spray pipe 69. The spraying range is increased through multiple spray heads 610 to ensure the cooling effect.

[0023] Further explanation: The spray head 610 adopts a fan-shaped atomizing spray head, enabling the spray head 610 to spray a fan-shaped water curtain, further expanding the spraying range on the surface of the magnetic roller 2 and improving the cooling effect.

[0024] Further explanation: The spray pipe 69 is arc-shaped and matches the surface curvature of the magnetic roller 2, enabling each spray head 610 on the spray pipe 69 to better spray and cool the surface of the magnetic roller 2.

[0025] The working principle is as follows:

[0026] First, during use, the ore is added into the housing 1 through the ore inlet 3. The magnetic materials are separated from the ore by the magnetic field of the magnetic roller 2, and the magnetic materials are discharged from the concentrate outlet 4, while the remaining ore is discharged from the tailings outlet 5, thus realizing the separation of the ore.

[0027] Second, during the operation of the magnetic separator, a large amount of heat is generated by the magnetic roller 2, affecting the efficiency and stability of the equipment. A water cooling and spraying device 6 is arranged on the left side outside the housing 1. First, the external water supply pipe is connected to the water supply interface 68 to provide water source for the water cooling and spraying device 6. Then, the finned tube radiator 63 and the circulation pump 66 are connected to the power supply to meet their usage requirements.

[0028] Third, during the operation of the water cooling and spraying device 6, when the spraying liquid enters the heat exchange tube 67, the cooling liquid 62 in the water cooling box 61 takes away the heat of the spraying liquid through the heat exchange tube 67 to reduce the temperature of the spraying liquid. Subsequently, the low-temperature spraying liquid is pumped into the spray pipe 69 from the heat exchange tube 67, and finally atomized by the spray head 610 and sprayed onto the surface of the magnetic roller 2. A large amount of heat can be absorbed during the evaporation process of the low-temperature spraying liquid, thus achieving a good cooling effect on the magnetic roller 2.

[0029] Fourth, during the operation of the water cooling and spraying device 6, the circulation pump 66 can provide circulation power for the cooling liquid 62. The cooling liquid 62 in the water cooling box 61 is pumped into the finned tube radiator 63 through the discharge pipe 65. After being cooled by the finned tube radiator 63, the cooling liquid 62 is circulated back into the interior of the water cooling box 61 through the discharge pipe 64, keeping the cooling liquid 62 in a low-temperature state and being able to continuously cool and lower the temperature of the spraying liquid in the heat exchange tube 67.

[0030] The above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A water-cooled pulsating vertical ring high-gradient magnetic separator, comprising a machine shell (1), a magnetic roller (2), a feed inlet (3), a concentrate outlet (4) and a tailings outlet (5). The magnetic roller (2) is rotatably installed at the left part inside the machine shell (1). The feed inlet (3) is provided at the top of the machine shell (1). The concentrate outlet (4) is provided at the left part of the bottom surface of the machine shell (1). The tailings outlet (5) is provided at the right part of the bottom surface of the machine shell (1). It is characterized in that: It further comprises a water-cooling spraying device (6). The water-cooling spraying device (6) is arranged on the left side outside the machine shell (1). The water-cooling spraying device (6) comprises a water-cooling box (61), a coolant (62), a finned tube radiator (63), a drainage pipe (64), a discharge pipe (65), a circulation pump (66), a heat exchange tube (67), a water supply interface (68), a spraying pipe (69) and a spray head (610). The water-cooling box (61) is bolted to the left side outside the machine shell (1). The coolant (62) is loaded inside the water-cooling box (61). The bottom interface of the water-cooling box (61) is connected to the drainage pipe (64), and the end of the drainage pipe (64) is connected to the outlet of the finned tube radiator (63). The top interface of the water-cooling box (61) is connected to the discharge pipe (65), and the end of the discharge pipe (65) is connected to the inlet of the finned tube radiator (63). The coolant (62) circulates between the water-cooling box (61) and the finned tube radiator (63) through the drainage pipe (64) and the discharge pipe (65). A circulation pump (66) is installed at the left part of the finned tube radiator (63), and the circulation pump (66) is connected to the inside of the discharge pipe (65). A heat exchange tube (67) is installed inside the water-cooling box (61), and the heat exchange tube (67) is completely immersed in the coolant (62). The water supply interface (68) is arranged at the left part of the water-cooling box (61), and the water supply interface (68) is communicated with the head end of the heat exchange tube (67). The spraying pipe (69) is installed at the left part inside the water-cooling box (61), and the tail end of the heat exchange tube (67) is connected to the spraying pipe (69). The spray head (610) is installed on the side of the spraying pipe (69) facing the magnetic roller (2).

2. The high-gradient magnetic separator with water-cooled pulsating vertical ring according to claim 1, wherein: The total length of the heat exchange tube (67) is not less than 1.2 m.

3. The high-gradient magnetic separator with water-cooled pulsating vertical ring according to claim 1, characterized in that: The number of the spray heads (610) is not less than two, and the spray heads (610) are equidistantly arranged on the surface of the spraying pipe (69).

4. The high-gradient magnetic separator with water-cooled pulsating vertical ring according to claim 1, characterized in that: The spray head (610) adopts a fan-shaped atomizing spray head.

5. The high-gradient magnetic separator with water-cooled pulsating vertical rings according to claim 1, wherein: The spraying pipe (69) is arc-shaped, and the spraying pipe (69) matches the surface radian of the magnetic roller (2).

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