JPH073260Y2 - Dryer - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is to dry a processed material in a drying chamber with rising hot air so that the dried material can be collected from the upper part of the drying chamber by air flow and aggregated. A processing product supply path and a hot air supply path are connected to the lower part of the drying chamber, and the hot air supply path is below the connection position of the processing product supply path so that the processed material is crushed and blown up to the drying room. Relates to a drying device in which a disintegrating tool is installed so as to be rotatable about a vertical axis in a state of being disposed above the connection position, and a dry matter collecting airflow conveying path is connected to an upper portion of the drying chamber.

[Prior Art] Conventionally, as shown in FIG. 5, a crushing tool formed in a hammer shape on a turntable (23) provided in a lower portion of a drying chamber (1) so as to be rotatable about a vertical axis ( 24) and the disk (25) are attached, the intake (26) is formed in the rotary disk (23) and the disk (25), and the hot air supply passage ( 5) sucks hot air from the lower intake port (26), and circulates hot air from above from the upper intake port (26).
Hot air is blown from between 3) and the disc (25) toward the turning trajectory of the disintegrator (24), and falls from the processed products from the processed product supply path (3) due to aggregation. Crushing tool (24)
It was configured so that it would be crushed by colliding with, and blown up with an appropriate finely-divided processed product with hot air.

[Problems to be solved by the device]

However, it is not suitable for a treated product such as activated carbon or pearlite which has to be dried without significantly reducing the particle size.

In other words, the hammer-shaped crushing tool (24) does not have an action of jumping the processed material upward only by jumping in the radial direction of rotation, and the processed material circulates from above in the rotation trajectory of the crushing tool (24). It is easy to be sent multiple times due to the hot air-conveying action, and the crushing tool (2
This is because the processed product is over-crushed due to collision with 4) and the quality of activated carbon and pearlite deteriorates.

The purpose of the present invention is to prevent the crushed processed material from colliding unnecessarily with the crushing tool, and it is necessary to crush and dry the activated carbon, pearlite, etc. without significantly reducing the particle size. The point is that even a certain treated product can be dried well.

[Means for Solving the Problems]

The characteristic configuration of the first invention resides in that the crushing tool is formed into a blast blade shape that blows upward with the rotation of the crushing tool, and its operation is as follows.

[Action]

In other words, when the processed product that has fallen due to agglomeration collides with the crushing tool, the crushing tool is in the shape of a blower blade that blows upward with the rotation. As it is lifted up, it is blown up by the rising hot air that has become stronger due to the action of the crushing tool, and it rises to a sufficiently high position. It is possible to sufficiently prevent the crushing tool from being returned to the rotation trajectory, and it is possible to reliably prevent excessive crushing of the processed material.

[Means for Solving the Problems]

The characteristic configuration of the second invention resides in that the blowing blades that blow the circulating hot air from above in the radial direction of rotation of the crushing tool are arranged to blow above the crushing tool. Is the street.

[Action]

In other words, the processed material returned by the circulating hot air from above after colliding with the crushing tool is blown out above the crushing tool, and is fine and easily blown up by the hot air,
It rises without colliding with the crushing tool again, and it is possible to reliably suppress over-crushing of the processed material.

[Effect of device]

As a result, for example, even if it is a processed product that needs to be crushed and dried without significantly reducing the particle size of activated carbon or pearlite, it is possible to reliably perform good drying without excessive crushing,
It has become possible to provide a more excellent drying device in terms of versatility.

〔Example〕

 Next, an embodiment will be described with reference to FIGS. 1 and 2.

In the lower part of the drying chamber (1), a processed material supply path (3) from a feeder (2) and a hot air supply path (5) from a hot air generating furnace (4).
A cyclone (7) for recovering dry matter, an air exhauster (8), and a dust collector (9) are provided in an air flow transfer path (6) connected to the upper part of the drying chamber (1).

In the lower part of the drying chamber (1), a turntable rotatable about a vertical axis center in a state of being disposed below the connection position of the processed material supply path (3) and above the connection position of the hot air supply path (5). A blower blade that internally mounts the crushing tool (11) attached to the (10), interlocks the motor (12) with the rotating disk (10), and blows the crushing tool (11) upward as the drive rotates. It is formed into a shape.

That is, among the processed products from the feeder (2), fine ones are blown up with hot air to be dried, and agglomerated ones are dropped and collide with the crusher (11) to be crushed. Is configured so that the crushing tool (11) lifts up and the crushing tool (11) strengthens the swirling rising hot air to blow up the fluid, so that the crushing tool (11) dries without excessive crushing. is there.

A classifying blade (14), which can be driven and rotated around the vertical axis by a motor (12), is installed in the upper part of the drying chamber (1), and only the sufficiently crushed processed material passes through the gap of the classifying blade (14). It is configured to be sent to the air flow transport path (6).

[Another embodiment]

 Next, another embodiment will be described.

In order to suppress excessive crushing by the crushing tool, as shown in FIG. 3 and FIG. 4, the blast blade (16) blown out in the radial direction of rotation of the crushing tool (15) is It may be provided so as to blow air upward.

That is, as shown in FIG. 3, the blower blades (16) are arranged between the circular plate (20) and the circular plate (19) that rotates integrally with the rotary plate (18) with the intake port (17), Hammer-shaped crusher (15)
The circulating hot air from the intake port (21) is blown out by the blower blades (16) toward the upper part of the rotation trajectory of the. Alternatively,
As shown in FIG. 4, the blower blades (16) attached to the upper surface of the disc (19) blow out the circulating hot air toward the upper side of the rotation locus of the hammer-shaped disintegrator (15). Therefore, the crushed processed material in the circulating hot air is prevented from being excessively crushed by the collision with the crushing tool (15).

The drying chamber (1) for drying the treated material while blowing it with rising hot air can be appropriately changed in structure, shape, etc. For example, the classification blade (14) may be omitted.

As the processed material supply path (3), a suitable one such as a screw conveyor type, a hot air conveying type, or a chute type can be used.

The number of disintegrators (11), (15) installed, the mounting structure, the drive configuration, etc. can be changed appropriately, and the shape of the blast-like disintegrator (11) according to the first aspect of the present invention allows upward air flow. The shape can be changed appropriately within the range, and the shape of the crushing tool (15) of the second invention can be changed freely.

For supplying hot air to the drying chamber (1), the hot air supply source can be appropriately selected, and as shown in FIG. 3, the auxiliary hot air supply passage (22)
The hot air can be supplied also above the shredder (15) by the flow control valve (V), and the amount of distribution to the hot air supply path (5) and the auxiliary hot air supply path (22) can be satisfactorily crushed. It may be set so that both of the above and the blow-off drying can be executed more surely.

The dry matter recovery means of the air flow transport path (6) can be appropriately selected.

The blower blade (16) according to the second aspect of the present invention can be appropriately changed in the number of installations, drive configuration, shape, and the like.

The type of processed material does not matter, and various powders and granules can be targeted.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention, FIG. 1 is an overall conceptual view, and FIG. 2 is a sectional view of an essential part. FIG. 3 and FIG. 4 are cross-sectional views of the essential parts showing another embodiment of the present invention. FIG. 5 is a sectional view of a main part of a conventional example. (1) ... drying room, (3) ... processed material supply path, (5) ...
… Hot air supply channel, (6) …… Air flow channel, (11), (15)
…… Crushing tool, (16) …… Blower blade.

Claims (2)

[Scope of utility model registration request] 1. A processed product supply path (3) at the lower part of the drying chamber (1).
And the hot air supply path (5) are connected to each other, and the disintegration tool (11) is arranged below the connection position of the treated material supply path (3) and above the connection position of the hot air supply path (5). Is a drier in which a rotatably driven shaft is installed around a vertical axis, and a dry matter collecting air flow transfer path (6) is connected to an upper part of the drying chamber (1), wherein the crushing tool (11) is A drying device formed in the shape of a blower blade that blows upward with the rotation. 2. A processed material supply path (3) at the lower part of the drying chamber (1).
And the hot air supply path (5) are connected to each other, and the disintegration tool (11) is arranged below the connection position of the treated material supply path (3) and above the connection position of the hot air supply path (5). Is a dryer in which a rotary shaft is driven and rotated around a vertical axis, and a dry matter collecting airflow transfer path (6) is connected to an upper portion of the drying chamber (1). The blasting blade (16) blown out in the turning radial direction of the crushing tool (15) is used as the crushing tool (15).
The drying device is arranged to blow air above.