Magnetic dehydration device

Abstract

The utility model belongs to the technical field of material drying, and particularly relates to a magnetic dehydration device which comprises a cylinder, a center shaft, a groove body and a fixing frame, supporting frames are arranged on the two sides of the fixing frame, connecting discs rotationally connected with the fixing frame are arranged at the two ends of the cylinder, the center shaft is arranged in the cylinder, and the groove body is arranged in the cylinder. The two ends of the center shaft penetrate through the connecting discs to stretch out and are rotationally connected with the corresponding supporting frames. At least two fan-shaped supporting plates are fixed on the central shaft along the axial direction, the fan-shaped supporting plates are fixedly connected through connecting strips, and magnetic systems are fixed on the connecting strips; and an adjustable counterweight mechanism is fixed on the central shaft. The two ends of the cylinder are rotationally connected with the fixing frame, the center shaft is rotationally connected with a supporting frame on the frame body, and the center shaft and the cylinder body are spaced and do not make contact. Therefore, the influence of vibration generated when the cylinder rotates on the magnetic system on the central shaft can be effectively reduced, and the connecting bolt is prevented from loosening.

Description

Technical Field

[0001] The utility model belongs to the technical field of material drying, and specifically relates to a magnetic dehydration device. Background Art

[0002] At present, in iron ore dressing plants or powder metallurgy industries, whenever iron ore powder is dried, thickener concentration, disc vacuum (or ceramic) filter filtration and rotary kiln final high-temperature drying are used.

[0003] The above method has a long process flow, involves many equipments, large specifications and models, and high energy consumption. It is not only inefficient, but also occupies a large area and has high capital construction costs. It also causes serious pollution to the environment. For certain heat-sensitive minerals or materials, high-temperature drying methods are not allowed to prevent changes in the properties of the minerals or materials.

[0004] To this end, an invention patent application with patent application number 201710955125.3 discloses an ultra-pure iron powder electromagnetic dehydration device, which adopts a structural setting similar to a magnetic separator, has the function of screening iron powder and improving the purity of iron powder, and the screened iron powder has good dehydration performance.

[0005] The electromagnet used replaces the permanent magnet in the prior art; however, whether it is an electromagnet or a permanent magnet, it is generally fixed to the yoke by bolts. During operation, the outer stainless steel cylinder is in a rotating state, and the inner yoke is fixed by the central axis; the central axis and the stainless steel cylinder are connected by rotation. Therefore, the vibration generated by the stainless steel cylinder during operation will cause the bolts fixing the magnetic block to loosen, or even fall off, causing damage to the inner surface of the stainless steel cylinder. Utility Model Content

[0006] In view of the above technical problems, the utility model provides a magnetic dehydration device, in which there is a gap between the central axis and the cylinder, and they are respectively connected to the fixing frames, so as to reduce the influence of the cylinder vibration on the magnetic system on the central axis.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A magnetic dehydration device comprises a cylinder, a central axis, a trough body and a fixed frame, support frames are provided on both sides of the fixed frame, connecting plates rotatably connected to the fixed frame are provided at both ends of the cylinder, the central axis is arranged in the cylinder, and the end portions of the central axis extend through the connecting plates and are rotatably connected to the corresponding support frames; at least two fan-shaped support plates are axially fixed on the central axis, and the fan-shaped support plates are fixedly connected by connecting strips, and a magnetic system is fixed on the connecting strips; an adjustable counterweight mechanism is fixed on the central axis; a driving mechanism is provided on the fixed frame, and the cylinder is driven to rotate by the driving mechanism; the trough body is fixedly connected to the fixed frame and is located below the cylinder.

[0009] The driving mechanism includes a driving motor, a driving pulley and a driven pulley. The housing of the driving motor is fixedly connected to a fixed frame, the driving pulley is fixedly connected to an output shaft of the driving motor, and the driven pulley is coaxially fixedly connected to any connecting disk. The driving pulley and the driven pulley are driven by a belt.

[0010] The magnetic system is composed of a plurality of permanent magnet blocks or electromagnetic blocks.

[0011] The counterweight mechanism includes a counterweight block and a connecting arm, at least two connecting arms are provided, the connecting arm includes a connecting rod and a connecting ring, the connecting ring is rotatably connected to the central axis, and the connecting rod is fixedly connected to the connecting ring; the counterweight block is slidably connected to the connecting rod in each connecting arm, and each connecting rod is threadedly connected to a limiting ring.

[0012] A support plate slidably connected to each connecting rod is provided at the bottom of the counterweight block, the counterweight block is fixedly connected to the support plate, and the support plate is slidably connected to the connecting rod.

[0013] A rubber layer is fixed on the outer surface of the support plate; the counterweight block is fixedly connected to the support plate by bolts.

[0014] It also includes a fan-shaped angle plate, one end of the central shaft is fixedly connected to a spline shaft, and the fan-shaped angle plate is provided with a spline groove that cooperates with the spline shaft; the fan-shaped angle plate is fixedly connected to a sliding rod, a counterweight ring is slidably connected to the sliding rod, and the sliding rod is connected to a lock nut through a thread.

[0015] A control switch is provided on one side of the slide rod, and the control switch is electrically connected to the drive motor; a support seat connected to the control switch is provided on the support frame.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The two ends of the cylinder are rotatably connected to the fixed frame, the central axis is rotatably connected to the support frame on the frame body, and there is a gap between the central axis and the cylinder body, and they are not in contact. Therefore, the influence of the vibration generated when the cylinder rotates on the magnetic system on the central axis can be effectively reduced, and the loosening of the connecting bolts can be avoided.

[0018] An adjustable counterweight mechanism is provided, and the magnetic system deflection angle can be determined by counterweighting through the counterweight mechanism, thereby eliminating the structural setting of the crank arm in the prior art.

[0019] A slide bar is provided. When the magnetic system falls off, the slide bar will swing accordingly, thereby contacting the control switch to stop the drive motor, thereby reducing the degree of damage to the inner surface of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of one direction of the utility model;

[0021] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 It is a structural schematic diagram of the utility model in another direction;

[0023] Figure 4 It is a side view of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the counterweight mechanism of the utility model;

[0025] Figure 6 yes Figure 5 a cross-sectional view of the structure shown;

[0026] Figure 7 yes Figure 6 The structural diagram of the middle A direction;

[0027] Figure 8 It is a structural schematic diagram of the support spring of the utility model;

[0028] Among them: 1 is a cylinder, 2 is a central axis, 3 is a trough body, 4 is a fixing frame, 5 is a supporting frame, 6 is a connecting plate, 7 is a fan-shaped supporting plate, 8 is a connecting strip, 9 is a magnetic system, 10 is a counterweight mechanism, 100 is a counterweight block, 101 is a connecting arm, 1010 is a connecting ring, 1011 is a connecting rod, 1012 is a limiting ring, 102 is a supporting plate, 103 is a rubber layer, 11 is a driving mechanism, 110 is a driving motor, 111 is a driving pulley, 112 is a driven pulley, 113 is a belt, 12 is a fan-shaped angle plate, 13 is a spline shaft, 14 is a sliding rod, 15 is a counterweight ring, 16 is a lock nut, 17 is a control switch, 18 is a supporting seat, and 19 is a supporting spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0030] like Figure 1-7 As shown, a magnetic dehydration device comprises a cylinder 1, a central axis 2, a tank body 3 and a fixed frame 4, support frames 5 are provided on both sides of the fixed frame 4, and connecting plates 6 rotatably connected to the fixed frame 4 are provided at both ends of the cylinder 1. The connecting plate 6 is fixedly connected to the cylinder 1 by bolts, and a corresponding bearing seat is provided on the fixed frame 4, and a rubber pad is installed at the bearing seat.

[0031] The central shaft 2 is arranged in the cylinder 1, and the two end portions of the central shaft 2 extend through the connecting disk 6 and are rotatably connected to the corresponding supporting frame 5; similarly, a corresponding bearing seat is also provided on the supporting frame 5, and a rubber pad is also installed at the bearing seat.

[0032] There is a gap between the central shaft 2 and the connecting disk 6, that is, the vibration of the cylinder will not be directly transmitted to the central shaft 2 through the connecting disk 6, thereby reducing the impact on the magnetic system 9 on the central shaft 2; and, corresponding rubber pads are provided at the bearing seats of the central shaft 2 and the connecting disk 6, which can further reduce the effect of vibration.

[0033] At least two fan-shaped support plates 7 are fixed axially on the central shaft 2, and the fan-shaped support plates 7 are fixedly connected by connecting strips 8, and a magnetic system 9 is fixed on the connecting strips 8. The magnetic system 9 can be fixedly connected to the connecting strips 8 by bolt fixing methods commonly used in the prior art. A driving mechanism 11 is provided on the fixing frame 4, and the cylinder 1 is driven to rotate by the driving mechanism 11; when the cylinder 1 rotates, the central shaft 2 does not rotate. The trough body 3 is fixedly connected to the fixing frame 4 and is located below the cylinder 1. The cylinder 1 is made of stainless steel.

[0034] In the prior art, the deflection angle of the magnetic system 9 is mainly fixed and adjusted by a crank arm; and the vibration generated by the cylinder 1 will also cause the bolts fixing the crank arm to loosen, thereby causing the deflection angle of the crank arm and the magnetic system 9 to change. In addition, the structural setting of the crank arm keeps the central axis 2 in a fixed state at all times. When the magnetic system 9 falls off, it will cause damage similar to "cutting".

[0035] The device has an adjustable counterweight mechanism 10 fixed on the central axis 2; during the installation stage, the central axis 2 is rotated by the position and weight of the counterweight mechanism 10, thereby achieving the purpose of changing the deflection angle of the magnetic system 9.

[0036] Furthermore, the driving mechanism 11 includes a driving motor 110, a driving pulley 111 and a driven pulley 112. The housing of the driving motor 110 is fixedly connected to the fixed frame 4, the driving pulley 111 is fixedly connected to the output shaft of the driving motor 110, and the driven pulley 112 is coaxially fixedly connected to any connecting disk 6; the driving pulley 111 and the driven pulley 112 are transmitted by a belt 113; that is, the connecting disk 6 and the cylinder 1 are driven to rotate by the driving motor 110.

[0037] Furthermore, the magnetic system 9 is composed of a plurality of permanent magnet blocks or electromagnetic blocks; preferably, permanent magnet blocks are used.

[0038] Further, the counterweight mechanism 10 includes a counterweight 100 and a connecting arm 101, at least two connecting arms 101 are provided, the connecting arm 101 includes a connecting rod 1011 and a connecting ring 1010, the connecting ring 1010 is rotatably connected to the central axis 2, and the connecting rod 1011 is fixedly connected to the connecting ring 1010. The way in which the connecting ring 1010 is rotatably connected to the central axis 2 can make the counterweight 100 always contact the side of the fan-shaped support plate 7 under the action of gravity. The counterweight 100 is slidably connected to the connecting rod 1011 in each connecting arm 101, and each connecting rod 1011 is threadedly connected to a limiting ring 1012, and the upper end surface of the limiting ring 1012 contacts the counterweight 100, which can limit the counterweight 100 from moving downward, thereby fixing the position of the counterweight 100.

[0039] Through this structural setting, the position of the counterweight 100 can be slid as needed, thereby changing the length of its force arm, generating thrust on the fan-shaped support plate 7, causing the fan-shaped support plate 7 and the magnetic system 9 thereon to rotate, thereby changing the effect of the deflection of the magnetic system 9. After adjustment, by rotating the limit ring 1012, the limit ring 1012 is brought into contact with the counterweight 100, limiting the counterweight 100 from moving downward. That is, the device can omit the structural setting of the crank arm, use the counterweight 100 to counterweight, rotate the central axis 2, and change the deflection of the magnetic system 9; and no other external structure is required for fixing.

[0040] Furthermore, a support plate 102 is provided at the bottom of the counterweight 100 and is slidably connected to each connecting rod 1011. The counterweight 100 and the support plate 102 are fixedly connected by bolts, and the support plate 102 is slidably connected to the connecting rod 1011. With this structural arrangement, counterweights 100 of different weights can be replaced as needed.

[0041] Furthermore, a rubber layer 103 is fixed on the outer surface of the support plate 102, so as to prevent the support plate 102 from directly contacting the side of the fan-shaped support plate 7 and causing it to be damaged.

[0042] Furthermore, it also includes a fan-shaped angle plate 12, one end of the central shaft 2 is fixedly connected to a spline shaft 13, and the fan-shaped angle plate 12 is provided with a spline groove that matches the spline shaft 13. A top screw is threadedly connected to the fan-shaped angle plate, and the lower end of the top screw abuts against the spline shaft 13, which plays a role in fixing the fan-shaped angle plate.

[0043] A sliding rod 14 is fixedly connected to the fan-shaped angle plate 12, and a counterweight ring 15 is slidably connected to the sliding rod 14. The sliding rod 14 is threadedly connected to a lock nut 16. Under the action of gravity, the lower surface of the counterweight ring 15 contacts the upper end surface of the lock nut 16, thereby limiting the downward movement of the counterweight ring 15 and fixing the position of the counterweight ring 15.

[0044] When there is an error between the deflection angle of the magnetic system 9 after installation and the deflection angle of the magnetic system 9 required for production, the position, quantity and weight of the weight ring 15 can be changed by sliding, that is, the weight ring 15 can apply an additional thrust to the central axis 2 externally to make it rotate, thereby changing the deflection angle of the magnetic system 9. At the same time, the shape and angle of the fan-shaped angle plate are consistent with the fan-shaped support plate, that is, the inclination angle of the internal fan-shaped support plate can be judged by the external fan-shaped angle plate, so as to facilitate the adjustment of the deflection angle of the magnetic system 9.

[0045] Furthermore, a control switch 17 is provided on one side of the slide bar 14, and the control switch 17 is electrically connected to the drive motor 110; a support seat 18 connected to the control switch 17 is provided on the support frame 5. The control switch 17 can be an emergency stop switch, a limit switch, etc.; it is electrically connected to the drive motor 110. When the magnetic block in the magnetic system 9 falls off, it will be stuck between the inner wall of the cylinder 1 and the magnetic block that has not fallen off, thereby driving the central axis 2, the fan-shaped angle plate and the slide bar 14 to rotate. The slide bar 14 is brought into contact with the control switch 17, so that the drive motor 110 is powered off, and the cylinder 1 is prevented from being continuously rotated and causing large-scale damage.

[0046] Further, if Figure 8 As shown, in order to prevent other external forces from causing the central axis 2 to rotate, such as external forces hitting the slide bar 14, etc., a support spring 19 is also provided, and the two ends of the support spring 19 are fixedly connected to the slide bar 14 and the support frame 5 respectively. Specifically: after adjusting the deflection angle of the magnetic system 9, the two ends of the support spring 19 are fixedly connected to the slide bar 14 and the support frame 5 respectively. The support spring 19 can limit the slide bar 14 and the central axis 2 from rotating at will, that is, it is necessary to overcome the resistance of the support spring 19 before it can be driven to rotate. When the magnetic block in the magnetic system 9 falls off, it will be stuck between the inner wall of the cylinder 1 and the magnetic block that has not fallen off, thereby driving the central axis 2, the fan-shaped angle plate and the slide bar 14 to rotate, and then overcome the resistance of the support spring 19, so that the slide bar 14 contacts the control switch 17.

[0047] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A magnetic dehydration device, characterized in that: The invention comprises a cylinder (1), a central axis (2), a trough body (3) and a fixed frame (4), support frames (5) are arranged on both sides of the fixed frame (4), connecting plates (6) rotatably connected to the fixed frame (4) are arranged at both ends of the cylinder (1), the central axis (2) is arranged in the cylinder (1), and the two end portions of the central axis (2) extend through the connecting plates (6) and are rotatably connected to the corresponding support frames (5); at least two fan-shaped support plates (7) are axially fixed on the central axis (2), and the fan-shaped support plates (7) are fixedly connected by connecting bars (8), and a magnetic system (9) is fixed on the connecting bars (8); an adjustable counterweight mechanism (10) is fixed on the central axis (2); a driving mechanism (11) is provided on the fixed frame (4), and the cylinder (1) is driven to rotate by the driving mechanism (11); the trough body (3) is fixedly connected to the fixed frame (4) and is located below the cylinder (1).

2. A magnetic dehydration device according to claim 1, characterized in that: The driving mechanism (11) comprises a driving motor (110), a driving pulley (111) and a driven pulley (112); the housing of the driving motor (110) is fixedly connected to a fixing frame (4); the driving pulley (111) is fixedly connected to an output shaft of the driving motor (110); and the driven pulley (112) is coaxially fixedly connected to any connecting disk (6); and the driving pulley (111) and the driven pulley (112) are driven by a belt (113).

3. A magnetic dehydration device according to claim 1, characterized in that: The magnetic system (9) is composed of a plurality of permanent magnet blocks or electromagnetic blocks.

4. A magnetic dehydration device according to claim 1, characterized in that: The counterweight mechanism (10) comprises a counterweight block (100) and a connecting arm (101), wherein at least two connecting arms (101) are provided, and wherein the connecting arm (101) comprises a connecting rod (1011) and a connecting ring (1010), wherein the connecting ring (1010) is rotatably connected to the central axis (2), and the connecting rod (1011) is fixedly connected to the connecting ring (1010); the counterweight block (100) is slidably connected to the connecting rod (1011) in each connecting arm (101), and each connecting rod (1011) is threadedly connected to a limit ring (1012).

5. A magnetic dehydration device according to claim 4, characterized in that: A support plate (102) slidably connected to each connecting rod (1011) is provided at the bottom of the counterweight block (100); the counterweight block (100) is fixedly connected to the support plate (102); and the support plate (102) is slidably connected to the connecting rod (1011).

6. A magnetic dehydration device according to claim 5, characterized in that: A rubber layer (103) is fixed to the outer surface of the support plate (102); the counterweight (100) and the support plate (102) are fixedly connected via bolts.

7. A magnetic dehydration device according to claim 2, characterized in that: It also comprises a sector angle plate (12), one end of the central shaft (2) is fixedly connected to a spline shaft (13), and the sector angle plate (12) is provided with a spline groove matching the spline shaft (13); the sector angle plate (12) is fixedly connected to a slide rod (14), a counterweight ring (15) is slidably connected to the slide rod (14), and the slide rod (14) is connected to a lock nut (16) via a thread.

8. A magnetic dehydration device according to claim 7, characterized in that: A control switch (17) is provided on one side of the slide bar (14), and the control switch (17) is electrically connected to the drive motor (110); and a support seat (18) connected to the control switch (17) is provided on the support frame (5).

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