KR100864216B1 - Dehydrator using centrifugal force for medicine and chemicals - Google Patents

Abstract

A centrifugal dehydrator for medicine or chemistry is provided to keep high cleanness and to complete works within a short time due to high filtering efficiency. A centrifugal dehydrator(2) for medicine or chemistry is composed of: a housing(4) fixed on the ground by a damper(8); a cylinder-shaped drum(10) installed in the housing to turn around an axis horizontal to the ground; a main driving motor(12) rotating the drum in order to apply centrifugal force to the mixed liquid poured into the drum; a mixed liquid supply unit pouring particulate raw material and the mixed liquid; a filter unit installed in the drum to separate the raw material and liquid by centrifugal force; a liquid discharging unit discharging the separated liquid out of the drum; and a raw material discharging unit discharging the cake-shaped raw material collected by the filter unit, out of the drum. The filter units are installed at regular intervals in a cylindrical circumferential wall(32) of the drum having perforated drain holes. The filter unit comprises a thin film-type metal filter having a mesh for passing only liquid of the mixed liquid and a mesh-type support net installed in the space between the circumferential wall and the metal filter to support the metal filer against centrifugal force and the weight of the stacked raw materials.

Description

Dehydrator using centrifugal force for medicine and chemicals}

1 is a schematic perspective view of a centrifugal dehydrator according to an embodiment of the present invention.

2 is a schematic front view thereof.

3 is a side configuration diagram of the housing.

4 is a perspective view of the drum, and FIG. 5 is a longitudinal sectional view of the drum.

Explanation of symbols on the main parts of the drawings

2 ; Dehydrator 4; housing

6; Baseframe 8; Damper

10; Drum 12; Main drive motor

14; Supply pipe 16; Mixed Liquid Supply Nozzle

18; Drain pipe 20; Metal filter

22; Support network 24; Scraper

26; Screw conveyor 28; Exit

30; Hub 32; Circumferential wall

34,36; First and second cleaning nozzles 38; Washing liquid supply pipe

The present invention relates to a dehydrator, and more particularly, to a centrifugal dehydrator for medicine or chemicals used in the process of separating and extracting a raw material of a drug mixed in a liquid.

Drugs and chemicals pass through intermediate products in which raw materials in the form of particles are mixed without being dissolved in water, ethanol, etc. in the production process. In order to fillet or encapsulate the medicine, the dehydration apparatus of the present invention is used to extract only the raw materials by removing moisture from the intermediate product.

Although the technical features are different, there is a 'filter drier' of Korean Utility Model Registration Application No. 20-1999-0006060 in relation to the application field of the dehydration apparatus according to the present invention.

An object of the present invention is to provide a centrifugal dehydrator for medical or chemical fields for separating and collecting the required solid particles from the suspension liquid mixture supplied into the apparatus while keeping the air from being blocked or kept clean.

The above object, the housing is installed on the ground via a damper; A cylindrical drum installed inside the housing to be rotatable about an axis parallel to the ground; A main drive motor for rotating the drum to apply centrifugal force to the material inside the drum; Mixed solution supply means for injecting a mixture of the raw material and the liquid in the form of particles; Filter means for separating the raw material and the liquid by centrifugal force as installed in the drum; Liquid discharge means for discharging the separated liquid to the outside of the drum; In the centrifugal dehydrator comprising a raw material discharge means for collecting the cake-shaped raw material collected by the filter means for discharging to the outside of the drum;

The filter means may be installed in the cylindrical circumferential wall of the drum in which the drain hole is spaced apart at regular intervals, the metal filter in the form of a plate having a mesh that allows only the liquid in the mixed liquid to pass through; In order to support the metal filter with respect to the centrifugal force and the weight of the stacked raw materials, it is installed in the space between the outer wall and the metal filter, and is formed by a mesh-type support network, Is achieved.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic perspective view of a centrifugal dehydrator according to an embodiment of the present invention. 2 is a schematic front view thereof. 3 is a side configuration diagram of the housing. 4 is a perspective view of the drum, and FIG. 5 is a longitudinal sectional view of the drum.

First, the general matters of the apparatus are summarized and described, and the most important features of the present invention will be described in separate paragraphs. Centrifugal dehydrator (2) of the present invention is used in the precision field of medicine, chemistry, and is usually made of stainless material because it must maintain rust prevention and cleanliness. As a configuration for physically filtering the mixture by centrifugal force, a shock absorbing function for absorbing vibration should be provided. The cylindrical housing 4 (or base frame 6) is therefore fixedly mounted to the frame 6 (or ground) via a damper 8. Inside the housing 4, a cylindrical drum 10 is installed to enable high-speed rotation about an axis A that is horizontal to the ground. The drum 10 is rotated by the main drive motor 12 installed outside the housing.

The mixed liquid supply means allows the mixed liquid in the form of a suspension liquid in which the raw materials and the liquid are mixed into the housing, especially the drum. The mixed liquid supply means includes a mixed liquid reservoir (not shown) installed outside the apparatus, a supply pipe 14 connected to the reservoir and penetrating the side wall of the housing 4, and a drum 10 connected to an end of the supply pipe 14. And a mixed liquid supply nozzle 16 fixedly installed therein. The mixed liquid supply nozzle 16 extends over the entire length of the drum height. This is for uniformly supplying the mixed liquid into the circumferential wall of the drum 10.

A drain pipe 18, which is a liquid discharge means for discharging the filtered liquid to the outside of the drum 10, is installed at the bottom of the housing 4.

The filter means is provided inside the drum 10. The filter means includes a metal filter 20 installed in a cylindrical shape parallel to the rotation axis A of the drum 10 and a support net 22 for supporting the same. Important features of the present invention reside in this section and are described below.

The liquid is separated by the filter means is provided with a raw material discharge means for collecting the raw material laminated on the inner peripheral surface of the metal filter in the form of a cake and discharged to the outside of the drum.

The filtered raw material is evenly attached to the entire inner circumferential surface of the metal filter 20 in the form of a cake by residual moisture. A scraper 24 for scraping it out is installed inside the drum 10. The screw conveyor 26 is composed of a feed tube and a screw rotated therein. The conveying pipe has a configuration in which all the raw materials dropped by the scraper 24 can be collected. The scraper 24 is such that its end portion can be adjusted in the radial direction of the drum by a cylinder or the like. Since such matters correspond to the related art, detailed illustration and description are omitted.

 A screw conveyor 26 is provided for carrying out the raw materials removed from the drum inner circumferential surface by the scraper 24 to the outside of the housing. The screw conveyor 26 extends to one side where the drum inner scraper 24 is located and the other side to the outside of the housing 4. The dropped raw materials are naturally dropped on one side of the screw conveyor 26 and then transferred to the outside of the housing 10. The discharging opening 28 is provided at the other bottom of the screw conveyor 26 located outside the housing 4, and the raw material is discharged to the outside through the discharging opening 28. The raw material is then transported to a vacuum dryer or the like, which undergoes residual moisture removal.

A feature of the invention lies in the filter means. This will be explained with reference to FIG. 5, which is a perspective view of the drum, and FIG.

"과 같은 형상을 가진다. 드럼의 타측 넓은 공간으로는 전술한바 있는 스크류컨베이어(26), 혼합물 공급노즐(16), 스크래퍼(24) 등이 인입되어 드럼 내부 공간에 위치되게 된다. The drum 10 is provided with a hub 30 to be connected to a drive shaft of the main driving motor 12 (see FIG. 1 or FIG. 2) on one side. The other side of the drum 10 is provided with a wide hole 10a, so that the cross section is approximately "

It has a shape such as ". In the other wide space of the drum, the screw conveyor 26, the mixture supply nozzle 16, the scraper 24, etc., as described above, are introduced and placed in the drum inner space.

The filter means comprises a metal filter 20 and a support net 22 for supporting it. The metal filter 20 is installed in the cylindrical outer circumferential wall of the drum 10 at regular intervals, and has a thin plate shape having a mesh that allows only liquid in the mixed liquid to pass therethrough. The metal filter 20 is supplied on the market with precision that the diameter of the filtration hole becomes approximately 20 μm. Both ends of the metal filter 20 are welded to both edges of the drum 10 to be fixed. Conventionally, woven fabrics and the like have been used, but there is a problem in cleanliness.

In addition, the metal filter 20 is a thin plate needs a means for preventing physical deformation or damage due to centrifugal force or the weight of the raw material. According to the present invention, a support net 22 having a sawtooth shape (see Fig. 5) is provided in the space between the circumferential wall 32 and the metal filter 20 of the drum. The cross section of the support net 22 is sawtooth-shaped to minimize the area where the filtration hole of the metal filter 20 is blocked by the support net 22. The support net 22 is made to be wrinkled by bending the metal sheet of the mesh form. Of course, the hole of the support net 22 is larger than the hole of the metal filter 20.

The circumferential wall 32 of the drum 10 is also closely drilled with a drain hole 32a, which is for drainage and the diameter of the drain hole is larger than that of the supporting net.

According to the dehydrator of the present invention, a drum washing means is further provided. It comprises: a first washing nozzle (34) installed adjacent to the outer circumferential wall (32) of the drum so that the injection direction toward the drum (10); A second washing nozzle (36) installed inside the drum such that an injection direction is directed from the inside of the drum (10) to the outside; And a cleaning solution supply pipe 38 for supplying the cleaning solution to the first and second cleaning nozzles 34 and 36.

The spraying direction of the first washing nozzle 34 is preferably opposite to the discharging direction of the liquid during filtration.

According to another embodiment of the present invention, the second washing nozzle 36 is further installed in the drum such that the spray direction is directed from the drum to the outside. The second washing nozzle 36 is installed in parallel with the first washing nozzle 34 and is the same size. The second cleaning nozzle 36 assists in cleaning by the first cleaning nozzle 34.

During washing, the first and second washing nozzles 34 and 36 may spray the washing liquid simultaneously or alternately. In some cases, only one of the cleaning nozzles may be selectively used. To this end, the washing liquid supply pipe 38 may be branched from one reservoir to be connected to the first and second washing nozzles 34 and 36, respectively. However, the supply pipe connected to the second washing nozzle 36 is not shown.

According to the above configuration, the mixed liquid can be continuously supplied while the drum is rotating. The mixed liquid should be supplied in an appropriate amount so as not to overflow into the wide hole 10a of the drum.

According to the above configuration, there is provided a chemical processing centrifugal dehydrator capable of separating the raw material from the mixture of the raw material and water, ethanol and the like used in medicine, fine chemicals requiring high cleanliness. This provides a high degree of cleanliness and provides a centrifugal dehydrator for pharmaceutical or chemical applications that can complete work in a short time due to high filtration efficiency.

Claims (3)

A housing 4 fixedly installed on the ground via a damper 8; A cylindrical drum (10) installed inside the housing (4) to be rotatable about an axis (A) parallel to the ground; A main drive motor 12 for rotating the drum 10 to apply centrifugal force to the mixed liquid introduced into the drum 10; Mixed liquid supply means for inject | pouring the mixed liquid of a particulate raw material and a liquid; Filter means for separating the raw material and the liquid by centrifugal force as installed in the drum (10); Liquid discharge means for discharging the separated liquid to the outside of the drum (10); In the centrifugal dehydrator comprising a raw material discharge means for collecting the cake-shaped raw material collected by the filter means for discharging to the outside of the drum (10); The filter means is installed in the cylindrical circumferential wall 32 of the drum in which the drain hole 32a is spaced apart at regular intervals, and has a thin plate-shaped metal having a mesh allowing only liquid in the mixed liquid to pass therethrough. Filter 20; In order to support the metal filter 20 with respect to the centrifugal force and the weight of the raw material to be laminated, it is composed of a mesh support network 22 installed in the space between the circumferential wall 32 and the metal filter 20 Centrifugal dehydrator for pharmaceutical or chemical fields. The circumferential wall of the metal filter 20 and the drum according to claim 1, wherein the support mesh 22 is bent in a corrugated form so that the cross section is sawtooth in order to minimize the contact area with the metal filter 20. Centrifugal dehydrator for medicine or chemicals, characterized in that installed in the separation space between (32). The washing machine of claim 1, further comprising: a first washing nozzle (34) installed adjacent to the outer circumferential wall (32) of the drum such that a spraying direction is directed toward the drum (10); A second washing nozzle (36) installed inside the circumferential wall (32) of the drum such that a spraying direction is directed from the inside to the outside of the drum; And a washing liquid supply pipe (38) for supplying a washing liquid to the first and second washing nozzles (34, 36).

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