Grinding device equipped with low-temperature nitrogen filling function for the production of ultra-fine, nanometer-sized pearl powder

Abstract

A grinding device equipped with a low-temperature nitrogen filling function for the production of ultra-fine, nanometer-sized bead powder, comprising: a main body, wherein a cooling chamber and a receiving chamber are provided in the main body, the cooling chamber is located above the receiving chamber, the cooling chamber opens upwards and forms a material inlet, the cooling chamber is laterally connected to a nitrogen channel and thus a low-temperature nitrogen can be introduced into the cooling chamber through the nitrogen channel, the main body has an elongated comminution cavity and a material outlet and the two ends of the comminution cavity are each continuously connected to the receiving chamber and the material outlet; a liquid nitrogen supply unit, which is continuously connected to the nitrogen channel and supplies the cooling chamber with low-temperature nitrogen, thereby cooling the bead particles to a frozen state; and a comminution unit consisting mainly of a motor and a screw driven by the motor, wherein the screw is located at the lower edge of the receiving chamber and runs axially in the comminution cavity, whereby the bead particles are compressed by the screw and the comminution cavity and ground into bead powder with an ultrafine particle size in the nanometer range.

Description

Field of the invention

[0001] The present invention relates to a bead grinding apparatus, and more particularly to a grinding apparatus equipped with a low-temperature nitrogen filling function for producing ultrafine, nanometer-sized bead powder, which discloses an innovative structure. State of the art

[0002] Pearl powder is rich in calcium, various amino acids, and micronutrients. Taking pearl powder can help supplement calcium and improve skin problems. Pearl powder can also be used as an external skincare product.

[0003] Pearl powder is obtained by grinding pearl particles. During the grinding process of pearl particles into pearl powder, friction generates heat energy, which causes the temperature of the pearl particles or pearl powder to rise. This can easily lead to qualitative changes in the pearl particles or pearl powder and result in the destruction of some of the active ingredients in the pearl powder. Object of the invention

[0004] The main objective of the present invention is to provide a grinding device equipped with a low-temperature nitrogen filling function for producing ultrafine, nanometer-sized bead powder. The technical problem to be solved is how to develop a novel, more optimal and practical bead grinding device that can avoid high temperatures during grinding.

[0005] To achieve the above object, the present invention provides a grinding apparatus equipped with a low-temperature nitrogen filling function for producing ultrafine nanometer-sized pearl powder, comprising: a main body, wherein a cooling chamber and a receiving chamber are provided in the main body, the cooling chamber is located above the receiving chamber, the cooling chamber opens upwards and forms a material inlet, the cooling chamber is laterally connected to a nitrogen channel and thereby a low-temperature nitrogen can be introduced into the cooling chamber through the nitrogen channel, the main body has an elongated crushing cavity and a material outlet, and the two ends of the crushing cavity are each continuously connected to the receiving chamber and the material outlet; a liquid nitrogen supply unit connected to the nitrogen channel and supplying the cooling chamber with low-temperature nitrogen, thereby cooling the bead particles to a frozen state; and a crushing unit mainly composed of a motor and a screw driven by the motor, wherein the screw is arranged at the bottom of the receiving chamber and extends axially in the crushing cavity, whereby the bead particles are compressed by the screw and the crushing cavity and ground into bead powder with ultrafine particle size in the nanometer range.

[0006] Compared with the conventional technology, with the innovative and unique design of the present invention, the liquid nitrogen supply unit can quickly cool the pearl particles to a frozen state, so that there is no qualitative change in the pearl particles and pearl powder during the crushing and grinding process, and thus pearl powder with ultrafine particle size in the nanometer range can be produced, thus ensuring industrial applicability. Brief description of the drawings Fig. 1 shows a perspective view according to a preferred embodiment of the present invention; Fig. 2 shows a sectional view according to the preferred embodiment of the present invention; Fig. 3 shows a sectional view of the first use state according to the preferred embodiment of the present invention; Fig. 4 shows a sectional view of the second use state according to the preferred embodiment of the present invention. Detailed description of the embodiment

[0007] It is based on the Fig. 1 to 4, which show a preferred embodiment of the inventive milling apparatus equipped with a low-temperature nitrogen filling function for producing ultrafine, nanometer-sized bead powder. The following description only explains the embodiment of the invention and is not intended to limit the claims.

[0008] The inventive milling apparatus for producing ultrafine, nanometer-sized bead powder equipped with a low-temperature nitrogen filling function comprises a main body 10, a liquid nitrogen supply unit 20, and a crushing unit 30, wherein a cooling chamber 11 and a receiving chamber 12 are provided in the main body 10, the cooling chamber 11 is located above the receiving chamber 12, the cooling chamber 11 opens upward and forms a material inlet 18, the cooling chamber 11 is laterally connected to a nitrogen channel 13 and thereby a low-temperature nitrogen 22 can be introduced into the cooling chamber 11 through the nitrogen channel 13, the main body 10 has an elongated crushing cavity 14 and a material outlet 15, and the two ends of the crushing cavity 14 are each continuously connected to the receiving chamber 12 and the material outlet 15.

[0009] The liquid nitrogen supply unit 20 is continuously connected to the nitrogen channel 13 and serves to supply liquid nitrogen. In the present embodiment, the liquid nitrogen supply unit 20 is a pressure vessel containing liquid nitrogen. Accordingly, when the liquid nitrogen supply unit 20 delivers liquid nitrogen to the nitrogen channel 13, the liquid nitrogen heats up and evaporates into low-temperature nitrogen 22, which flows through the nitrogen channel 13 and is then introduced into the cooling chamber 11. In this way, the liquid nitrogen supply unit 20 supplies the cooling chamber 11 with low-temperature nitrogen 22, whereby the bead particles 92 introduced into the cooling chamber 11 are quickly cooled to a frozen state and then fall into the receiving chamber 12.

[0010] The crushing unit 30 mainly consists of a motor 32 and a motor-driven screw 34. The screw 34 is arranged at the bottom of the receiving chamber 12 and extends axially within the crushing cavity 14. Accordingly, the motor 32 drives the screw 34 to rotate, whereby the bead particles 92 are compressed by the screw 34 and the crushing cavity 14 and ground into bead powder 94 with an ultrafine particle size in the nanometer range. The bead powder 94 is then discharged from the main body 10 via the material outlet 15.

[0011] According to the structure and technical features described above, the usage and operating conditions of the preferred embodiment are described below: It will be Fig. 3. At the beginning of use of the preferred embodiment, a low-temperature nitrogen 22 is introduced into the cooling chamber 11 through the liquid nitrogen supply unit 20 to create a low-temperature environment in the cooling chamber 11. The bead particles 92 are introduced into the cooling chamber 11 via the material inlet 18, wherein the bead particles 92 are quickly cooled to a frozen state by the low-temperature nitrogen 22. As shown in Fig. 4, the frozen bead particles 92 fall from the cooling chamber 11 down into the receiving chamber 12. When the bead particles 92 fall to the lower edge of the receiving chamber 12, the screw 34 rotates to introduce the bead particles 92 into the crushing cavity 14, where the bead particles 92 are compressed by the screw 34 and the crushing cavity 14 and ground into bead powder 94 with an ultrafine particle size in the nanometer range.

[0012] In the preferred embodiment, the liquid nitrogen supply unit 20 is used to supply liquid nitrogen, so that the bead particles 92 are quickly cooled to a frozen state as they pass through the cooling chamber 11. Even if the temperature of the bead particles 92 or the bead powder 94 rises during the subsequent grinding and comminution process of the bead particles 92 into bead powder 94, the temperature of the bead particles 92 or the bead powder 94 still remains in the low-temperature range, so that neither the bead particles 92 nor the bead powder 94 undergoes any qualitative changes. Furthermore, the bead particles 92 are first cooled to a frozen state, which facilitates the subsequent grinding and comminution process. In this way, the bead powder 94 with an ultrafine particle size in the nanometer range is produced.

[0013] Furthermore, the screw 34 has a guide segment 36 and a crushing segment 38, wherein the crushing segment 38 is located in the crushing cavity 14, the end of the crushing segment 38 is located near the material outlet 15, the guide segment 36 is located between the crushing segment 38 and the motor 32, and the pitch of the crushing segment 38 is smaller than that of the guide segment 36. In the present embodiment, the pitch of the crushing segment 38 decreases along the direction from the guide segment 36 to the material outlet 15, which is a better embodiment. Accordingly, when the bead particles 92 are introduced into the guide segment 36, the bead particles 92 are pushed by the guide segment 36 into the crushing cavity 14 and the crushing segment 38.By changing the pitch between guide segment 36 and crushing segment 38, the bead particles 92 are compressed by the crushing segment 38 and the crushing cavity 14 and crushed into bead powder 94. The bead powder 94 is further compressed and crushed, with the particle size of the bead powder 94 becoming smaller the closer it gets to the material outlet 15. In this way, the bead particles 92 can be ground to obtain bead powder 94 with an ultrafine particle size in the nanometer range.

[0014] Two inclined guide surfaces 16 are formed on two sides of the receiving chamber 12. The guide surfaces 16 are laterally opposite each other, with the width between the guide surfaces 16 decreasing from top to bottom, and the lower edge of each guide surface 16 and the guide segment 36 opposite each other at the top and bottom, thereby guiding the bead particles 92 to fall toward the guide segment 36.

[0015] The main body 10 is further provided with two pivotable flaps 17, wherein the flaps 17 are arranged laterally opposite one another between the cooling chamber 11 and the receiving chamber 12 in order to control the state of the continuous connection between the cooling chamber 11 and the receiving chamber 12.

[0016] It will be repeated again Fig. 3. At the beginning of use of the preferred embodiment, the flaps 17 block the continuous connection between the cooling chamber 11 and the receiving chamber 12, whereby the low-temperature nitrogen 22 is introduced into the cooling chamber 11 by the liquid nitrogen supply unit 20 and blocked by the flaps 17 and does not immediately fall into the receiving chamber 12, which is conducive to the rapid formation of a low-temperature environment in the cooling chamber 11, so that the bead particles 92 are quickly cooled to a frozen state upon introduction into the cooling chamber 11. As in Fig. 4, the flaps 17 are pivoted in opposite directions, whereby the cooling chamber 11 and the receiving chamber 12 are continuously connected to one another and thus the frozen pearl particles 92 fall into the receiving chamber 12.

[0017] Furthermore, an introduction device 40 is arranged above the main body 10, wherein the introduction device 40 is continuously connected to the material inlet 18. In the present embodiment, the introduction device 40 is funnel-shaped. Accordingly, the bead particles 92 are introduced into the cooling chamber 11.

[0018] The present invention provides a grinding apparatus equipped with a low-temperature nitrogen filling function for producing ultrafine, nanometer-sized pearl powder, comprising a main body, a liquid nitrogen supply unit, and a crushing unit, wherein a cooling chamber and a receiving chamber are provided in the main body, the cooling chamber is located above the receiving chamber, the main body has an elongated crushing cavity and a material outlet, and the liquid nitrogen supply unit supplies low-temperature nitrogen to the cooling chamber, thereby cooling the pearl particles into a frozen state, wherein the crushing unit is composed of a motor and a screw driven by the motor, and the pearl particles are compressed by the screw and the crushing cavity and ground into pearl powder with an ultrafine particle size in the nanometer range.

[0019] The liquid nitrogen supply unit quickly cools the pearl particles to a frozen state, so that there are no qualitative changes in the pearl particles and the pearl powder.

Claims

[1] A grinding device equipped with low-temperature nitrogen filling function for producing ultrafine, nanometer-sized pearl powder, comprising: a main body, wherein a cooling chamber and a receiving chamber are provided in the main body, the cooling chamber is located above the receiving chamber, the cooling chamber opens upwards and forms a material inlet, the cooling chamber is laterally connected to a nitrogen channel and thereby a low-temperature nitrogen can be introduced into the cooling chamber through the nitrogen channel, the main body has an elongated crushing cavity and a material outlet, and the two ends of the crushing cavity are each continuously connected to the receiving chamber and the material outlet; a liquid nitrogen supply unit connected to the nitrogen channel and supplying the cooling chamber with low-temperature nitrogen, thereby cooling the bead particles to a frozen state; and a crushing unit mainly composed of a motor and a screw driven by the motor, wherein the screw is arranged at the bottom of the receiving chamber and extends axially in the crushing cavity, whereby the bead particles are compressed by the screw and the crushing cavity and ground into bead powder with ultrafine particle size in the nanometer range. [2] A grinding apparatus for producing ultrafine nanometer-sized pearl powder equipped with a low-temperature nitrogen filling function according to claim 1, wherein the screw has a guide segment and a crushing segment, the crushing segment is located in the crushing cavity, the end of the crushing segment is located near the material outlet, the guide segment is located between the crushing segment and the motor, and the pitch of the crushing segment is smaller than that of the guide segment, so that the pearl particles are compressed by the crushing segment and the crushing cavity and crushed into pearl powder. [3] A grinding apparatus for producing ultrafine nanometer-sized pearl powder equipped with a low-temperature nitrogen filling function according to claim 2, wherein the pitch of the crushing segment decreases along the direction from the guide segment to the material outlet. [4] A milling apparatus equipped with a low-temperature nitrogen filling function for producing ultrafine nanometer-sized bead powder according to claim 2, wherein two inclined guide surfaces are formed on two sides of the receiving chamber, the guide surfaces are laterally opposed to each other, the width between the guide surfaces decreases from top to bottom, and the lower edge of each guide surface and the guide segment are opposed to each other at the top and bottom, thereby guiding the bead particles to fall toward the guide segment. [5] A grinding apparatus for producing ultrafine nanometer-sized pearl powder equipped with a low-temperature nitrogen filling function according to claim 1, wherein the main body is further provided with two pivotable flaps, and the flaps are arranged laterally opposite each other between the cooling chamber and the receiving chamber to control the state of continuous communication between the cooling chamber and the receiving chamber. [6] A milling apparatus for producing ultrafine nanometer-sized bead powder equipped with a low-temperature nitrogen filling function according to claim 1, further comprising an introducing means disposed above the main body, and the introducing means is continuously connected to the material inlet, whereby the bead particles are introduced into the cooling chamber.

Images