JPH08178519A - Rotary cylinder type cooling treatment device - Google Patents

Abstract

PURPOSE: To provide a rotary cylinder type cooling treatment device, employed optimally for the matter to be treated, having a low viscosity, especially and improved so as to be capable of treating without spoiling the efficiency of cooling treatment on the surface of a cylindrical body. CONSTITUTION: The inside of a cylindrical body 4 is provided with a cooling mechanism 6 for cooling the cylindrical body and a doctor plate 15 is arranged so as to be approached obliquely from the upper part of the elevating surface side of rotation of the cylindrical body 4 while the reservoir 18 or the matter 3 to be treated is formed between the elevating surface side of rotation of the cylindrical body 4 and the upper surface of the doctor plate 15. An endless belt 7 is provided for transferring the matter 3 to be treated, which is supplied to the reservoir 18 and adhered to the surface of the cylindrical body 4 in accordance with the rotation of the same, while being adhered to the cylindrical body 4 as it is and suspended along the outer periphery of the cylindrical body 4 from the descending surface side of the rotation of the cylindrical body 4 to the lower surface side of the same.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating cylinder type cooling treatment apparatus, and more specifically, it presses a concentrated solution of a substance having a relatively high crystallization rate on the surface of a rotating rotating cylinder being cooled. The present invention relates to a rotating cylinder type cooling treatment device which is preferably used when the crystallization is performed by efficient cooling treatment to recover the flakes.

[0002]

2. Description of the Related Art FIG. 2 is a schematic explanatory view of a known rotating cylinder type processing apparatus (1) proposed by Japanese Patent Publication No. 2-9273. This rotating cylindrical processing device (1) is a rotating cylindrical processing device that performs cooling processing by bringing an object to be processed (3) into close contact with the surface of a rotatable cylindrical body (4) in a cooled state, A cooling mechanism (6) for cooling the cylindrical body (4) having a rotating shaft supported in the horizontal direction is provided, and an object to be treated (3) is provided above the cylindrical body (4). An object supply part (2) for supplying to the surface of the cylindrical body (4) is provided, and the object (3) supplied from the object supply part (2) is provided around the cylindrical body (4). Cylindrical body (4)
The rolling roll (5), which is pressed against and is rolled to be adjustable in space between the cylindrical body (4) and the object (3) rolled by the rolling roll, is brought into close contact with the cylindrical body (4). An endless belt (7) stretched around the outer circumference of the cylindrical body (4) is provided for transporting the endless belt (7).

In FIG. 2, reference numerals (8a), (8b),
(8c) is a roller, code (9) is a crusher, code (1
0) is a coarsely crushed piece, reference numeral (11) is a crusher, reference numeral (12) is a crushed piece, reference numeral (13) is a screw conveyor, reference numeral (1)
Reference numerals 4) and 15 are scrapers, reference numeral 16 is a gas outlet, and reference numeral 17 is a cover.

[0004]

By the way, there is the following problem when the object to be treated (3) has a low viscosity when the cooling treatment is carried out by the above-mentioned rotary cylinder type treatment apparatus. That is, it becomes difficult to uniformly supply the object to be treated (3) to the surface of the cylindrical body (4) through the gap between the rolling roll (5) and the cylindrical body (4), and the large amount of the object to be treated (3). The part adheres to the rolling roll (5), and the efficiency of the cooling treatment on the surface of the cylindrical body (4) decreases. The present invention has been made in view of such circumstances, and an object of the present invention is to perform a cooling process by bringing an object to be processed (3) into close contact with the surface of a rotatable cylindrical body (4) in a cooled state. A cylindrical cooling treatment device, which is particularly preferably used for a low-viscosity treated material (3),
It is an object of the present invention to provide an improved rotating cylinder type cooling treatment device that can perform the treatment without impairing the efficiency of the cooling treatment on the surface of the cylindrical body (4).

[0005]

That is, the gist of the present invention is a rotary cylinder type in which a cooling treatment is carried out by bringing a workpiece (3) into close contact with the surface of a rotatable cylindrical body (4) in a cooled state. A cooling treatment device, wherein a cooling mechanism (6) for cooling the cylindrical body (4) is provided inside a cylindrical body (4) whose rotating shaft is supported in a horizontal direction. Doctor blade (15) on the side from diagonally above
Are arranged close to each other, and a reservoir (18) for the object to be treated (3) is formed between the rotation rising surface of the cylindrical body (4) and the upper surface of the doctor blade (15) to rotate the cylindrical body (4). From the descending surface side to the lower surface side, the object to be treated (3), which is supplied to the reservoir (18) and adheres to the surface of the cylindrical body (4) as it rotates, is transferred while being in close contact with the cylindrical body (4). The endless belt (7) stretched around the outer periphery of the cylindrical body (4) is provided in the rotary cylindrical processing device.

[0006]

The doctor blade (15), which is disposed close to the rotation-increasing surface side of the cylindrical body (4) obliquely from above, holds the reservoir (18) for the object (3) to be treated between the doctor blade (15) and the cylindrical body (4). As the cylindrical body (4) rotates, the cylindrical body (4) adheres and pulls up the low-viscosity object to be treated (3) supplied to the reservoir (18) in a substantially uniform thickness, and the doctor blade (15). ) Also has a scraper action on its back surface.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic explanatory view showing an example of a rotary cylinder type cooling treatment apparatus according to a preferred embodiment of the present invention. 2 in FIG.
The same symbols as have the same meaning.

Rotating cylinder type cooling treatment apparatus of the present invention (1)
Is a cylindrical body (4) whose rotation axis is supported in the horizontal direction, a cooling mechanism (6) provided inside the cylindrical body (4) for cooling the cylindrical body, and a rotation rising surface of the cylindrical body (4). A doctor blade (15), which is placed close to the side from diagonally above,
Rotating rising surface of cylindrical body (4) and doctor blade (15)
The reservoir (1) of the object to be processed (3) formed between the upper surface of the
8), mainly composed of an endless belt (7) stretched around the outer periphery of the cylindrical body (4) from the rotation descending surface side to the lower surface side of the cylindrical body (4).

The cooling mechanism (6) is adapted to supply a cooling medium to the inside of the cylindrical body (4). As the cooling medium, water,
A liquid or gaseous cooling medium used as a normal cooling medium such as an ethylene glycol aqueous solution, a calcium chloride aqueous solution, freon gas, or ammonia gas is used.

The doctor blade (15) is arranged close to the rotation rising surface side of the cylindrical body (4) from diagonally above. The doctor blade (15) usually has a single-edged tip, and the blade surface side is the lower surface, and the doctor blade (15) is parallel to the axial direction of the cylindrical body (4) over substantially the entire width of the peripheral surface of the cylindrical body (4). Will be placed. The doctor blade (15) and the cylindrical body (4) form a reservoir (processed object bank forming part) (18) for the processed object (3).

The doctor blade (15) is preferably provided with a heating mechanism (19) on the lower blade surface side.
That is, the cooling treatment apparatus of the present invention is preferably used when crystallizing a concentrated solution of a substance having a relatively high crystallization rate and recovering it in the form of flakes. In such a case, the heating mechanism (19) is It has a function of preventing crystallization on the surface of the doctor blade (15). The heating mechanism (19) may be either an internal heating system or an external heating system. Specifically, a method of circulating a heat medium inside the doctor blade (15) or a method of attaching a heater to the lower surface of the doctor blade (15) can be adopted.

On both end faces of the cylindrical body (4), side plates (20), (20) are usually arranged so as to surround the doctor blade (15). Side plate (2
0) and (20) have a function of preventing liquid leakage from both sides of the reservoir (18), but are omitted by controlling the supply amount of the object to be treated (3) to the reservoir (18). You can also do it.

The object supply part (2) is a means for supplying the low-viscosity object (3) to the reservoir (18), and may have various shapes other than the illustrated cylindrical shape. Good. Further, the side plates (20) are provided on both end faces of the cylindrical body (4),
When (20) is arranged, the low-viscosity processed material (3) can be supplied by a bucket. The low-viscosity processed material (3) supplied to the reservoir section (18) by the object supply section (2) adheres to the surface of the cylindrical body (4) with a substantially uniform thickness and is pulled up. .

The endless belt (7) comprises a cylindrical body (4).
It has a function of preventing peeling of the object to be treated (3) adhering to the surface thereof during the rotation of, and transferring the object while keeping it in close contact with the cylindrical body (4). It is preferable that the workpiece (3) is brought into close contact with the cylindrical body (4) from the side to the lower side. For that purpose, the endless belt (7) is provided with a roller (8) as shown in FIG.
The structure may be such that it is stretched over a), (8b), and (8c). The pressing position and pressing force of the endless belt (7) can be adjusted by adjusting the positions of the rollers (8a), (8b) and (8c).

The endless belt (7) can be made of soft vinyl chloride, synthetic resin such as polyethylene, synthetic rubber, natural rubber, metal, etc. as long as it can exert a function of bringing the object (3) to be processed into close contact with the cylindrical body (4). Can be selected from any of the above materials according to the material of the object to be processed (3). However, it is preferable that at least the surface of the endless belt (7) that is in contact with the object to be processed (3) is made of a resin having releasability from the object to be processed (3). Usually, a fluorine-based resin (for example, a trade name “Teflon”) or a silicone-based resin has releasability with respect to most types of objects (3) to be treated. When a metal belt is used as the endless belt (7), the surface of the metal belt is baked and coated with a fluororesin, or a fluororesin film is laminated on the surface of the metal belt so that the object to be treated (3 It is possible to improve the releasability.

The crusher (9) has an endless belt (7).
Has a function of roughly crushing the object to be treated (3) peeled off from the endless belt (7) depending on the position of the bending path line of the endless belt (7) before being bent. It is installed in the front.
The illustrated crusher (9) has a structure in which a large number of pins are implanted around a round bar-shaped core body and has a function of rotating and crushing an object to be processed, but the structure is arbitrary depending on the application. Is.

The crusher (11) is arranged in a container below the crusher (9) and functions to crush the crushed pieces (10) crushed by the crusher (9) into crushed pieces (12). Have. As the crusher (11), for example, a cutter mill or the like can be used. Screw conveyor (13)
Is arranged in the container together with the crusher (11) and has a function of carrying out the crushed pieces (12). The crushed pieces (12) are
As a product, it is carried out in one direction perpendicular to the paper surface of FIG.

Since the cooling processing apparatus of the present invention has a compact structure, it is possible to cover the entire apparatus with, for example, a simple cover (17), whereby the object to be processed (3) and the outside air can be covered. It can be easily shut off.
As a result, it is possible to solve the problem of hygiene when used for processing foods and the like. The gas lead-out port (16) is provided as necessary for leading out dehumidified air, dehumidified nitrogen, etc., and is provided at an arbitrary place inside the cover (17).

By the way, generally, in the cooling treatment accompanied by crystallization, the temperature of the processed product is easily lowered, so that the processed product is sufficiently cooled in advance to prepare a processed product in a semi-crystallized state. Is done. In such a cooling process of the processed product, if the processed product is immediately cooled at the same time as the supply of the processed product, it solidifies on the spot, so that it is not possible to form flakes.

The cooling treatment apparatus of the present invention is suitably used for a concentrated solution of a substance having a relatively high crystallization rate as described above. Such a low-viscosity object (3) is cooled by the cooling processing apparatus of the present invention as follows. That is, first, the low-viscosity object (3) supplied to the reservoir (18).
Is attached to the surface of the cylindrical body (4) with a substantially uniform thickness and pulled up as the cylindrical body (4) rotates. At this time, the heating mechanism (19)
Prevents crystallization on the surface of the doctor blade (15).

Next, the object to be treated (3) adhered to the surface of the cylindrical body (4) with a substantially uniform thickness is cooled according to the temperature of the cylindrical body (4) and at the same time the cylindrical body (4) is It moves below the cylindrical body (4) as it rotates. During this period, the object to be processed (3)
Is sufficiently cooled to crystallize. The endless belt (7) prevents the object (3) to be peeled from the surface of the cylindrical body (4) due to its own weight. As a result, the object to be processed (3)
It is possible to prevent a defective portion of the cooling process from occurring due to the peeling.

Next, the object to be treated (3) which has been transferred by the endless belt (7) while being pressed against the surface of the cylindrical body (4) and subjected to the cooling treatment adheres closely to the endless belt (7). It is transferred as it is, peeled off from the endless belt (7) at the position of the bending pass line, and is roughly crushed by the crusher (9). The crushed pieces (10) crushed by the crusher (9) are crushed by the crusher (11) into crushed pieces (12). And crushed pieces (12)
Is carried out by a screw conveyor (13) to be a product. Since the object to be treated remaining on the surface of the cylindrical body (4) is removed by the blade surface of the doctor blade (15), there is no possibility that the object to be treated adheres to and accumulates on the cylindrical body (4).

[0023]

INDUSTRIAL APPLICABILITY The rotating cylindrical body cooling treatment apparatus of the present invention described above is particularly suitable for use with a low-viscosity treated material (3) and has a high efficiency of cooling treatment on the surface of the cylindrical body (4). There is an advantage to say.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing an example of a rotary cylinder type processing apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a schematic explanatory view of a known rotating cylindrical processing device.

[Explanation of symbols]

 1: Rotating cylinder type cooling treatment device 2: Processing object supply part 3: Processing object 4: Cylindrical body 6: Cooling mechanism 7: Endless belt 15: Doctor blade 18: Reservoir part (processing object bank forming part) 19: Heating mechanism 20: Side plate

Claims (2)

[Claims] 1. A rotatable cylindrical body (4) in a cooled state.
A rotating cylinder type cooling treatment device for performing a cooling treatment by bringing an object to be treated (3) into close contact with the surface of a cylindrical body (4) having a rotating shaft supported in a horizontal direction. A cooling mechanism (6) for cooling is provided, and a doctor blade (15) is arranged close to the rotation rising surface side of the cylindrical body (4) from obliquely above the rotation rising surface side of the cylindrical body (4) and the doctor blade. A reservoir (18) for the object to be treated (3) is formed between the upper surface of (15) and the reservoir (18) is supplied to the lower surface side from the rotation descending surface side of the cylindrical body (4). An endless belt stretched along the outer periphery of the cylindrical body (4) for transporting an object to be treated (3) adhered to the surface of the cylindrical body (4) while being in close contact with the cylindrical body (4) as the cylindrical body (4) rotates. (7) is provided, The rotating cylinder type | mold processing apparatus characterized by the above-mentioned. 2. The rotating cylindrical processing apparatus according to claim 1, wherein the doctor blade (15) is provided with a heating mechanism (19).