| CPC B27K 3/0285 (2013.01) [B27K 3/0214 (2013.01); B27K 3/26 (2013.01); B27K 3/32 (2013.01); B27K 5/001 (2013.01)] | 7 Claims |
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1. A device for preparing a magnetic bamboo wood, wherein the device comprises a base (1), a soaking bucket (2), and a bracket (3); the base (1) is connected to the soaking bucket (2) and the bracket (3); the device further comprises a lower hot pressing plate (4), high-precision powder weighing equipment (5), a water outlet (6), a water adding assembly (7), a clamping mechanism, an air drying mechanism, a heating mechanism, a hot pressing mechanism, and a driving mechanism; the water outlet (6) is arranged on a lower part of the soaking bucket (2); the bracket (3) is fixedly connected to the lower hot pressing plate (4) configured to place a bamboo wood; the driving mechanism is arranged on the bracket (3); the driving mechanism comprises an electric drive pusher I (8); the clamping mechanism is arranged on a telescopic rod of the electric drive pusher I (8); the clamping mechanism is configured to clamp the bamboo wood on the lower hot pressing plate (4) into the soaking bucket (2); the high-precision powder weighing equipment (5) is mounted on the soaking bucket (2); the high-precision powder weighing equipment (5) is configured to accurately feed chemical reagents into the soaking bucket (2); the water adding assembly (7) is arranged on the base (1); the air drying mechanism and the heating mechanism are arranged in the soaking bucket (2); the hot pressing mechanism is arranged on the bracket (3); a solution is added into the soaking bucket (2) through the water adding assembly (7); by cooperation with the chemical reagents fed through the high-precision powder weighing equipment (5), lignin in the bamboo wood is eluted, and the bamboo wood is soaked; after the bamboo wood is dried by the air drying mechanism and the heating mechanism, the hot pressing mechanism is configured to perform hot pressing on the bamboo wood to increase the density of the bamboo wood; the clamping mechanism comprises a connecting assembly (11), a lifting plate (12), clamping plates (13), springs I (14), wedge blocks I (15), springs II (16), pulling ropes (17), and a rotating motor (18); the telescopic rod of the electric drive pusher I (8) is fixedly connected to the connecting assembly (11); the connecting assembly (11) is slidably connected to the lifting plate (12); one side of the connecting assembly (11) is fixedly connected to the rotating motor (18); the rotating motor (18) is fixedly connected to the lifting plate (12) through a rotating shaft and the connecting assembly (11); the springs II (16) are mounted between the connecting assembly (11) and the lifting plate (12); the clamping plates (13) are slidably connected into the lifting plate (12); the springs I (14) are connected between the lifting plate (12) and the clamping plates (13); the wedge blocks I (15) matched with the clamping plates (13) are arranged in the lifting plate (12); the pulling ropes (17) are connected between the connecting assembly (11) and the wedge blocks I (15); the hot pressing mechanism comprises a hydraulic cylinder (41), a microwave element (42), an upper hot pressing plate (43), and a limiting assembly; the hydraulic cylinder (41) is mounted on the bracket (3); the microwave element (42) is fixedly connected to a piston rod of the hydraulic cylinder (41); the microwave element (42) is fixedly connected to the upper hot pressing plate (43); and the limiting assembly is arranged on the lower hot pressing plate (4) to restrict the movement of the bamboo wood during hot pressing performed on the bamboo wood;
when the device is used for preparing the magnetic bamboo wood, the preparing method comprises the following steps:
S1: pumping distilled water into the soaking bucket (2), and feeding sodium hydroxide and sodium sulfite in a ratio of 2:1 into the soaking bucket (2) in sequence through the high-precision powder weighing equipment (5), obtaining a mixed solution after full dissolving, heating the solution to enable the solution to react with the lignin in the bamboo wood to elute the lignin;
S2: adding hydrogen peroxide, heating the mixture, washing off residual sodium hydroxide and sodium sulfite, and then adding ethyl alcohol to wash the bamboo wood for 1 to 5 hours;
S3: drying the bamboo wood until the moisture content is below 12%;
S4: putting a trivalent ferrite salt and a divalent ferrite salt into the soaking bucket (2), wherein the trivalent ferrite salt and the divalent ferrite salt are dissolved in the soaking bucket (2) with deionized water for full dissolving, so that a molar concentration ratio of trivalent iron to divalent iron in the mixed solution is 2:1, and soaking the bamboo wood;
S5: drying the bamboo wood in air;
S6: pumping a 25% ammonia water into the soaking bucket (2) to soak the bamboo wood in the 25% ammonia water, and drying the bamboo wood in air after the soaking of the bamboo wood ends; and
S7: clamping the bamboo wood onto the lower hot pressing plate (4) again, turning on the hydraulic cylinder (41) to drive the upper hot pressing plate (43) to move down to perform hot pressing on the bamboo wood; with the assistance of microwaves of the microwave element (42), turning off the hydraulic cylinder (41); and completing the preparation of the magnetic bamboo wood.
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