CN102825249B - Magnetic powder warm granulation device and method - Google Patents
Magnetic powder warm granulation device and method Download PDFInfo
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- CN102825249B CN102825249B CN201210332930.8A CN201210332930A CN102825249B CN 102825249 B CN102825249 B CN 102825249B CN 201210332930 A CN201210332930 A CN 201210332930A CN 102825249 B CN102825249 B CN 102825249B
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Abstract
The invention discloses a magnetic powder warm granulation device and method. The magnetic powder warm granulation device comprises a granulation pool (1), a water tank (2) and a control unit (3), wherein a temperature sensor (11) and an electric heater (12) are arranged in the water tank (2), and the electric heater (12) is used for heating and controlling the water temperature in the water tank (2) to be the temperature at a sintering point of a granulation adhesive; and stirring paddles are arranged in the granulation pool (1), a driven stirring paddle (14) is connected with a driving stirring paddle (13) through a transmission device, a driving rotating shaft (15) is connected with a speed reducer (17) through the transmission device, and the speed reducer (17) is connected with a driving motor (18). The granulation pool disclosed by the invention can be heated by hot water in a circulating manner so as to achieve the temperature at the softening point of the adhesive, the adhesive is softened, a self-lubrication effect is further produced, the magnetic powder granulation efficiency can be improved, and the product quality can be upgraded; and a three-dimensional stirring way is adopted, and the stirring direction and the speed are automatically controlled by a controller, thus the stirring is more uniform and sufficient.
Description
Technical field
The present invention relates to a kind of prilling granulator and method between magnetic temperature.
Background technology
Neodymium iron boron binding magnet because of its magnetic good uniformity, freedom shape is large, dimensional accuracy is high, meets the developing direction of hyundai electronics components and parts " light, thin, short, little ", is described as " pacemaker " of 21 century information industry.Along with scientific and technological development, the range of application of neodymium iron boron magnetic body is more and more wider, also more and more higher to the performance requirement of neodymium iron boron magnetic body.Neodymium iron boron magnetic body is compressing and obtain after by soft-magnetic alloy powder and bonding agent mixing granulation, and the granulation quality of magnetic directly affects the multinomial performance of neodymium iron boron magnetic body finished product.
Yet, the rabbling mechanism cloverleaf paddles that adopt as shown in Figure 1 of existing magnetic prilling granulator more, the contact area of magnetic and paddle is less, and the agitating mode of paddle is single, stir fully not, reduced magnetic granulation efficiency, granulation effect is also undesirable.In addition, present magnet stirring-granulating carries out at normal temperatures, and under normal temperature condition, bonding agent is softening, adhesive effect is poor, and granularity of magnet powder skewness has also limited the stirring-granulating effect of magnetic to a great extent.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, provide a kind of employing three-dimensional agitating mode, mixing direction and speed can be automatically controlled, stir fully, uniformly, make whole granulating tank reach bonding agent softening point temperature by hot water circulation heated, bonding agent softens and produces self-lubricating effect, can improve magnetic granulation efficiency and improve prilling granulator and method between the magnetic temperature of product quality.
The object of the invention is to be achieved through the following technical solutions: prilling granulator between a kind of magnetic temperature, it comprises granulating tank, water tank and control module, the outer wall of granulating tank is provided with vacuum reservoir bed, the hot water inlet of vacuum reservoir bed is connected with the hot water outlet of water tank by hot-water line, hot-water line is provided with heat-exchanger pump, and the bypass outlet of vacuum reservoir bed is back to water tank by return duct; In water tank, be provided with temperature sensor and electric heater, control module comprises controller, heating control circuit, temperature sensor signal treatment circuit and drive motors control circuit, temperature sensor is connected with temperature sensor signal treatment circuit, temperature sensor signal treatment circuit is connected with controller, electric heater is connected with heating control circuit, and heating control circuit is connected with the control signal output of controller; In granulating tank, be provided with at least one paddle, one of them paddle is active paddle, all the other are driven paddle, initiatively paddle is fixedly connected with active rotating shaft, and each driven paddle is fixedly connected with driven spindle respectively, and each driven spindle is connected with active rotating shaft by transmission device respectively, active rotating shaft is connected with decelerator by transmission device, decelerator is connected with drive motors, and drive motors is connected with drive motors control circuit, and drive motors control circuit is connected with controller.
Vacuum reservoir bed of the present invention is connected with vavuum pump by vacuum-pumping tube.
The present invention also comprises that one in order to measure and to show the pressure vacuum gauge of vacuum reservoir bed internal pressure.
Electric heater of the present invention is electrically heated rod.
The water temperature that electric heater of the present invention adds in thermal control water tank is constant temperature, and this thermostat temperature is the softening point temperature of granulation bonding agent.
A prilling process between magnetic temperature, it comprises the following steps:
S1: start vavuum pump, vacuum reservoir bed is vacuumized to processing;
S2: start electric heater by control button the water in water tank is heated, start-up temperature sensor Real-time Collection water temperature value;
S3: when the water temperature in water tank reaches the softening point temperature of granulation bonding agent, regulate electric heater, by water temperature constant control in this temperature;
S4: start heat-exchanger pump, the hot water in water tank is imported to vacuum reservoir bed by hot-water line, and make hot water circuit around vacuum reservoir bed, be finally back to water tank from bypass outlet;
S5: magnetic and granulation bonding agent are respectively charged in granulating tank, start drive motors by control button, drive initiatively paddle to rotate, driven paddle is made corresponding rotation thereupon, completes the action of stirring-granulating.
The present invention also comprises that one regulates the rotation direction of paddle and the step of slewing rate by control module.
The invention has the beneficial effects as follows:
(1) granulating tank reaches bonding agent softening point temperature by hot water circulation heated, and bonding agent softens and produces self-lubricating effect, can improve magnetic granulation efficiency improving product quality;
(2) adopt three-dimensional agitating mode, and mixing direction and speed controlled automatically by controller, stir more evenly, more abundant.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional paddle;
Fig. 2 is prilling granulator structural representation between temperature of the present invention;
In figure, 1-granulating tank, 2-water tank, 3-control module, 4-vacuum reservoir bed, 5-hot water inlet, 6-hot-water line, 7-hot water outlet, 8-heat-exchanger pump, 9-bypass outlet, 10-return duct, 11-temperature sensor, 12-electric heater, 13-is paddle initiatively, the driven paddle of 14-, 15-active rotating shaft, 16-driven spindle, 17-decelerator, 18-drive motors, 19-vavuum pump.
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 2, prilling granulator between a kind of magnetic temperature, it comprises granulating tank 1, water tank 2 and control module 3, the outer wall of granulating tank 1 is provided with vacuum reservoir bed 4, the hot water inlet 5 of vacuum reservoir bed 4 is connected with the hot water outlet 7 of water tank 2 by hot-water line 6, hot-water line 6 is provided with heat-exchanger pump 8, and the bypass outlet 9 of vacuum reservoir bed 4 is back to water tank 2 by return duct 10.
In water tank 2, be provided with temperature sensor 11 and electrically heated rod 12, control module 3 comprises controller, heating control circuit, temperature sensor signal treatment circuit and drive motors control circuit, temperature sensor 11 is connected with temperature sensor signal treatment circuit, temperature sensor signal treatment circuit is connected with controller, electrically heated rod 12 is connected with heating control circuit, and heating control circuit is connected with the control signal output of controller; The water temperature that electrically heated rod 12 adds in thermal control water tank 2 is constant temperature, and this thermostat temperature is the softening point temperature of granulation bonding agent.
In granulating tank 1, be provided with at least one paddle, one of them paddle is active paddle 13, all the other are driven paddle 14, initiatively paddle 13 is fixedly connected with active rotating shaft 15, each driven paddle is fixedly connected with driven spindle 16 respectively, each driven spindle 16 is connected with active rotating shaft 15 by transmission device respectively, active rotating shaft 15 is connected with decelerator 17 by transmission device, decelerator 17 is connected with drive motors 18, drive motors 18 is connected with drive motors control circuit, and drive motors control circuit is connected with controller.
Vacuum reservoir bed 4 is also connected with vavuum pump 19 by vacuum-pumping tube, before package unit work, first with 19 pairs of vacuum reservoir beds 4 of vavuum pump, vacuumizes.It also comprises that one in order to measure and to show the pressure vacuum gauge of vacuum reservoir bed 4 internal pressures, and pressure vacuum gauge is arranged on the top of granulating tank lid.
A prilling process between magnetic temperature, it comprises the following steps:
S1: start vavuum pump 19, vacuum reservoir bed 4 is vacuumized to processing;
S2: the water starting in 12 pairs of water tanks 2 of electric heater by control button heats, start-up temperature sensor 11 Real-time Collection water temperature value;
S3: when the water temperature in water tank 2 reaches the softening point temperature of granulation bonding agent, regulate electric heater 12, by water temperature constant control in this temperature;
S4: start heat-exchanger pump 8, the hot water in water tank 2 is imported to vacuum reservoir bed 4 by hot-water line 6, and make hot water circuit around vacuum reservoir bed 4, be finally back to water tank 2 from bypass outlet 9;
S5: magnetic and granulation bonding agent are respectively charged in granulating tank 1, start drive motors 18 by control button, drive initiatively paddle 13 to rotate, driven paddle 14 is made corresponding rotation thereupon, completes the action of stirring-granulating.
It also comprises that one regulates the rotation direction of paddle and the step of slewing rate by control module 3, can paddle be set by control module 3 and every 1 minute, substitute a mixing direction, stir speed (S.S.) also can be adjusted as required and arrange, to reach best stirring-granulating effect.
Claims (5)
1. prilling granulator between a magnetic temperature, it is characterized in that: it comprises granulating tank (1), water tank (2) and control module (3), the outer wall of granulating tank (1) is provided with vacuum reservoir bed (4), the hot water inlet (5) of vacuum reservoir bed (4) is connected with the hot water outlet (7) of water tank (2) by hot-water line (6), hot-water line (6) is provided with heat-exchanger pump (8), the bypass outlet (9) of vacuum reservoir bed (4) is back to water tank (2) by return duct (10), vacuum reservoir bed (4) is also connected with vavuum pump (19) by vacuum-pumping tube, before described prilling granulator work, first use vavuum pump (19) to vacuumize vacuum reservoir bed (4),
In water tank (2), be provided with temperature sensor (11) and electric heater (12), control module (3) comprises controller, heating control circuit, temperature sensor signal treatment circuit and drive motors control circuit, temperature sensor (11) is connected with temperature sensor signal treatment circuit, temperature sensor signal treatment circuit is connected with controller, electric heater (12) is connected with heating control circuit, and heating control circuit is connected with the control signal output of controller;
Granulating tank is provided with at least two paddles in (1), one of them paddle is active paddle (13), all the other are driven paddle (14), initiatively paddle (13) is fixedly connected with active rotating shaft (15), each driven paddle is fixedly connected with driven spindle (16) respectively, each driven spindle (16) is connected with active rotating shaft (15) by transmission device respectively, active rotating shaft (15) is connected with decelerator (17) by transmission device, decelerator (17) is connected with drive motors (18), drive motors (18) is connected with drive motors control circuit, drive motors control circuit is connected with controller,
Described prilling granulator also comprises that one in order to measure and to show the pressure vacuum gauge of vacuum reservoir bed (4) internal pressure, and pressure vacuum gauge is arranged on the top of granulating tank lid.
2. prilling granulator between a kind of magnetic temperature according to claim 1, is characterized in that: described electric heater (12) is electrically heated rod.
3. prilling granulator between a kind of magnetic temperature according to claim 1, is characterized in that: the water temperature that described electric heater (12) adds in thermal control water tank (2) is constant temperature, and this thermostat temperature is the softening point temperature of granulation bonding agent.
4. a prilling process between magnetic temperature, is characterized in that: it comprises the following steps:
S1: start vavuum pump (19), vacuum reservoir bed (4) is vacuumized to processing;
S2: start electric heater (12) by control button the water in water tank (2) is heated, start-up temperature sensor (11) Real-time Collection water temperature value;
S3: when the water temperature in water tank (2) reaches the softening point temperature of granulation bonding agent, regulate electric heater (12), by water temperature constant control in this temperature;
S4: start heat-exchanger pump (8), the hot water in water tank (2) is imported to vacuum reservoir bed (4) by hot-water line (6), and make hot water circuit around vacuum reservoir bed (4), be finally back to water tank (2) from bypass outlet (9);
S5: magnetic and granulation bonding agent are respectively charged in granulating tank (1), start drive motors (18) by control button, drive initiatively paddle (13) to rotate, driven paddle (14) is made corresponding rotation thereupon, completes the action of stirring-granulating.
5. prilling process between a kind of magnetic temperature according to claim 4, is characterized in that: it also comprises that one regulates the rotation direction of paddle and the step of slewing rate by control module (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332930.8A CN102825249B (en) | 2012-09-11 | 2012-09-11 | Magnetic powder warm granulation device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332930.8A CN102825249B (en) | 2012-09-11 | 2012-09-11 | Magnetic powder warm granulation device and method |
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| Publication Number | Publication Date |
|---|---|
| CN102825249A CN102825249A (en) | 2012-12-19 |
| CN102825249B true CN102825249B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210332930.8A Expired - Fee Related CN102825249B (en) | 2012-09-11 | 2012-09-11 | Magnetic powder warm granulation device and method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874788A (en) * | 2015-06-01 | 2015-09-02 | 苏州市东泰磁业有限公司 | Neodymium-iron-boron magnetic powder granulator |
| CN109758975B (en) * | 2019-01-28 | 2022-02-15 | 长沙华秦高新科技有限公司 | Powder granulating method |
| CN115248291A (en) * | 2022-09-22 | 2022-10-28 | 成都图南电子有限公司 | Magnet body defect detection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100517153C (en) * | 2007-02-07 | 2009-07-22 | 李小卿 | Automatic temperature control apparatus of mould |
| CN101364467A (en) * | 2008-06-12 | 2009-02-11 | 青岛科技大学 | Preparation of ferrite magnetic spliced magnet having great processability |
| JP5462230B2 (en) * | 2011-10-12 | 2014-04-02 | インターメタリックス株式会社 | Manufacturing method of NdFeB-based sintered magnet |
| CN202762396U (en) * | 2012-09-11 | 2013-03-06 | 成都图南电子有限公司 | Magnetic powder warm chamber pelleting device |
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