KR100620079B1 - A drying machine of a disk - Google Patents

Abstract

The present invention is to install a wear-resistant split-ring and a shredding device to the disk drying disk for indirect heat disk drying of the viscous sludge-like material to reduce the cost of the entire disk surface wear and to transfer the specific surface area of the dry object by the fracture To increase the drying efficiency to provide a disk dryer.

That is, according to the present invention, a plurality of disks 1 having a transfer blade 5 inside the casing 10 constituting the disk dryer 3 are fixed and rotated on the disk shaft 9, and the casing 10 In the conventional disk dryer (3) provided with the upper shredding stator bar (2) to prevent the dry revolving phenomenon on the slurry to be put into the (2), an arc-shaped fixed to the edge of the disk (1) Split ring (4), a crushing rod (8) fixed to the outer surface of the disk (1), and a small lump crushing stator-bar (7) fixed to the lower rear side of the casing (10). Bar,

The split-ring 4 of the present invention not only prolongs the replacement cycle according to the wear of the disk, but also the viscous sludge is softened by the conduction heat of the surface of the disk 1 when it is fed into the disk dryer 3, so that the feed is quickly transferred in the dryer. The drying efficiency is prevented from being lowered and sufficient heat conduction time is provided, and a crushing device is mounted on the rotating disk 1 surface and the fixed casing 10 to crush the dry matter between the rotating body and the fixed body, and the drying process The gradual crushing of the heavy building can increase the specific surface area of the building to increase the drying efficiency.

Disc dryers, split-rings, shredder-bars for shredding, shredding rods, discs

Description

A drying machine of a disk}

1 is a cross-sectional view showing a conventional disk dryer

Figure 2 is an exploded perspective view of the disk of the conventional disk drying

3 is a ring preventing wear and drying efficiency of the disk dryer provided in the present invention

Assembly section of shredding device for stand

Figure 4 is an exploded perspective view of the disk extract of the disk dryer provided in the present invention

Figure 5 is an exploded perspective view of the split-ring assembly of the disk provided in the present invention

■ Explanation of symbols used in main part of drawing ■

1: disc 2: shredder stator bar

3: (disc) dryer 4: split-ring

4a: coupling hole 5: feed wing

5a: mounting hole 6: fixing bracket

6a: Bolt 7: Shredder Stator-Bar

8: crushing rod 9: disc-axis

10: casing

The present invention relates to a disc dryer for indirect heat disc drying of a viscous sludge material, and more particularly, to install a disc for disc dryer discs to prevent wear and reduce cost by replacing the entire surface of the disc wear and It is an object of the present invention to provide a disk dryer with improved drying efficiency by increasing the heat transfer specific surface area of a dry matter by crushing.

In general, the drying efficiency is the ratio of the amount of heat actually supplied to the amount of heat required for drying. In the same heat transfer area of the indirect heat conducting disc dryer, the smaller the particles of the dry matter, the larger the specific surface area, and the higher the heat transfer effect, and the internal moisture exists as surface water. Therefore, the drying speed is faster.

Paddle dryers, disc dryers, drum dryers, and thin film evaporation dryers are used as indirect heat conduction dryers. Among them, paddle dryers and disc dryers are used for feed, fish meal, and fine It is widely used in the drying process of ceramics and various materials.

Dryer to which the present invention belongs to the type of dryer is a disk dryer that can be crushed by a conduction heating type dryer to increase the thermal conductivity specific surface area to increase the drying efficiency, and to reduce the cost when replacing the wear damage.

Disk dryers have been used in various fields from long time to small to large scale by drying using conductive heat between heat medium (steam, heat oil, hot water, etc.) and materials with pipe walls.

The structure of a disk dryer, which is a general conductive heating dryer, is shown in FIGS.

In the presently improved and used form, the crushed stator bar 2 is installed on the upper part to prevent the mass of the mass from being caught between the disk 1 and the surface.

In the case of dry masses, the shredding stator bar (2) was installed to prevent the phenomenon of revolving like the rotating disk (1) .However, the larger mass of dry mass has less specific surface area. The efficiency is low.

In the case of the disk dryer (3), the wear proceeds from the edge of the disk (1) which has the most contact with the dry matter. In the related art, when the surface of the disk (1) is damaged by the wear of the disk (1), the disk (1) The problem is that the whole surface needs to be replaced.

Accordingly, the present invention is to provide a disk dryer of a new configuration that can eliminate all the problems of the existing disk dryer described above,

The present invention is to provide a disk dryer that can minimize the damage caused by abrasion of the rotating disk surface, especially in the disk dryer, and maximize the drying efficiency even when the object itself is a sticky material,

To prevent abrasion of the disk surface, several split-rings are assembled to the edge of the existing disk surface using a bracket to minimize damage to the disk surface wear. Slurry-like material flowed to the lower part of the dryer without heat transfer to the disk surface to prevent drying by short residence time, and attached to the crusher without additional power to crush the dry adhesive material gradually. The present invention has been completed in view of the technical problem of the present invention in providing a disk dryer capable of uniform drying.

Hereinafter, the present invention will be described in detail with the accompanying drawings. However, in describing the present invention, the same components as those of the conventional disc dryer 3 will be described using the same reference numerals.

The present invention relates to an indirect thermally conductive disk dryer (3), in which the prefabricated split-ring (4) is attached to the outer surface of the disk (1) of the conventional conductive heating type disk dryer (3) by wear. It prevents damage to the entire surface of the disk (1), so that only a part can be replaced, and a slurry-like material prevents a decrease in heat transfer efficiency due to rapid transfer to a wide gap between the surface of the disk (1) and the casing (10). In addition, during the drying process, the sticky mass of water to be gradually transferred to the discharge port by the rotation of the disk shaft 9 is continuously crushed to enlarge the contact specific surface area of the dry object and the disk 1 heat transfer surface. It improves heat transfer efficiency and continuously crushes the bulky dry matter, so that the moisture in the inside becomes the surface water attached to the surface of the dryland continuously so that the drying speed can be doubled. Wishes to provide greater dryers (3).

The dry matter mass on the filter cake introduced into the upper side of the disc dryer 3 is dried by conduction heat transferred to a plurality of disk 1 plate surfaces fixed at regular intervals on the disc-axis 9, and the disc-axis In the rotation of (9), a gradual conveying is made by the inclined conveying blade 5 attached to the edge of the disc 1.

The split ring 4 of the present invention, which is installed in such a disk 1, is assembled and mounted in several discs on each disk 1 disc, and has a spiral structure in which some flow paths are opened with respect to the entire disk-axis 9. Has

These split-rings (4) compensate for the problem that the disc (1) disc itself wears when it comes in contact with the dry object and replaces the entire disc-axis (9). In addition to improving the problem that the dry matter on the slurry introduced into the dryer is transported to the lower side without contacting the disk 1 surface, the transported material is sequentially contacted with the disk 1 surface to extend the residence time and uniformly. You can get a building.

The shredding device installed on the disk 1 and the casing 10 is located in the upper part of the casing 10 and the disk 1 in the first half of the dry slurry, which is mostly occupied by the viscous slurry and the large mass of the dry matter. In the latter half, where the smaller construction is present in the medium size, the lower casing 10 and the disk 1 are installed.

The crushing stator bars (2, 7) installed at the upper and lower parts are fixed to the casing (10), and the crushing rod (8) attached to the disk (1) surface is rotated by the rotation of the disk shaft (9). The size of the particles is determined according to the distance between the shredding stators-bars 2 and 7 and the shredding rods 8.

The dry matter introduced into the slurry of the filter cake during the drying process is gradually broken into smaller particles by the shredding device, and the moisture present in the large agglomerate is present as the surface water of the dry matter as the particles are broken. It is to improve the drying speed of the object.

Such a wear prevention and shredding apparatus of the disc dryer 3 of the present invention is shown in detail in FIGS.

That is, in the conventional disc dryer 3, the outer edge of the disc 1 is coupled with a prefabricated split-ring 4 for prolonging the residence time of the slurry-like material and preventing wear of the disc 1 end.

The split ring 4 is formed in an arc shape in accordance with the outer edge of the rough disk 1, and forms a coupling hole 4a at both ends to form a coupling hole 5a formed in the transfer blade 5. Assemble the bolt (6a) using the fixing bracket (6) through.

Inside the disc dryer 3, the upper fixed crushing stator-bar for crushing the large mass generated in the first half during the drying process, and the lower fixed crushing stator-bar for crushing the small mass generated in the latter half (7) is fixed and installed on the surface of the rotating disk (1) is provided with a crushing rod (8) for crushing work in cooperation with the crushing stator-bar (2,7).

The dry matter in the slurry or filter cake flows into the inside through the top of the disc dryer 3 and is dried by contact with the surface of the disc 1 heated by the heat medium (steam, heat oil, hot water).

These dry products are softened in contact with the heated disk 1 surface and flow downwards without sufficient heat exchange with the disk 1 surface. The split-rings spirally assembled on the disk 1 surface 4) acts as a dwell time control to block the flowability so that the dry matter can have sufficient heat exchange with the disk (1) surface.

In addition, when the dry material is a wearable material, the surface of the disk 1 is damaged. The maximum damage to wear is the edge of the surface of the disk 1 which is most in contact with the dry object. ) And the entire disk-axis 9 has to be replaced, but the present invention attaches the fixing bracket 6 for assembling the split-ring 4 to the edge of the disk 1 face and divides into equal parts. By assembling the ring (4) to prevent the damage caused by the wear of the disk (1) surface, the prefabricated split-ring (4) can be easily disassembled and replaced when worn.

The dry matter put into the disk dryer (3) is formed by the contact with the surface of the heated disk (1) to form a lump of mass while discharging a part of the moisture, and the internal moisture is not discharged for a long time, and has a small specific surface area. Therefore, the drying efficiency is lowered.

In the present invention, by using a crushing device fixed to the rotating disk (1) surface and the dryer casing 10, it is possible to gradually crush the agglomerate dry matter to increase the specific surface area of the dry matter to dry the material with self-adhesive I was supposed to

In the first half of the disk dryer (3) to be put into the dry object as shown in Figure 3 is fixed to the fixed stator bar (2) to prevent the product is attached to the disk 1 surface and rotates, and A fixed crushing stator bar (7) is fixedly installed at the lower part of the latter part in which a small amount of dry matter is formed due to drying to some extent, and a crushing rod (8) is provided on the rotating disk (1) surface. When the disk shaft 9 rotates, the mass of the dry matter can be gradually crushed by the interaction between the front and rear of the casing 10 and the crushing rod 8 attached to the rotating disk 1, It is to provide a disk dryer (3) having a shredding function that does not require a power source of.

As described in detail above, the disk dryer 3 provided in the present invention attaches the prefabricated split-ring 4 to the disk 1 surface end and is transported downward without contact with the heat transfer surface of the slurry material. Prevents damage and provides compatibility for replacement and replacement of wear and tear, and can provide cost reduction effect. Up and down crushing is installed before and after the casing (10) for the bulky mass generated in the drying process without additional driving power. It is to provide a number of advantages, such as by using a crushing rod (8) installed in the stator bar (2, 7) and the disk 1 to gradually break down to achieve high efficiency of drying.

Claims (1)

In the casing 10 constituting the disc dryer 3, a plurality of discs 1 having a transfer blade 5 are fixed and rotated on the disc-axis 9, and the slurry introduced into the casing 10. In a conventional disk dryer (3) provided with an upper crushing stator bar (2) for preventing dry phase of the dry matter on the top of the input portion; An arc-shaped split ring (4) fixed to an edge of the disk (1); A crushing rod (8) fixed to an outer surface of the disk (1), Disk casing (10) characterized in that it comprises a small lump crushing stator-bar (7) fixed to the rear lower portion.

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