JPS6113067Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a homogeneous mixing device for fuel oil. In particular, the present invention relates to an improvement in a mixing device for atomizing and uniformly mixing dissimilar liquids or solid-liquid mixtures in separate phases.

Although a mixture of sludge, water, solid fuel, and fuel oil has hitherto been considered unsuitable for use as a fuel, from the current energy saving perspective it is particularly desirable to use it in a combustible state.

Conventionally, a homogeneous mixing device has a plurality of rotating disks supported on a rotating central shaft located in a cylindrical chamber;
It has been proposed that this rotary disk consists of a stack of multiple disks that rotate while contacting the inner wall of a cylindrical chamber. In such a mixing device, when the above-mentioned fuel mixture is introduced from the top of the device, the mixed fuel hits the rotating body in the cylindrical chamber and flows in the form of a film along the wall of the cylindrical chamber due to the centrifugal force. Since the rotary disk rotates in frictional contact with the inner wall of the cylinder, the solid fuel, moisture, additives, and fuel oil components in the mixed fuel flowing on the inner wall of the cylinder are passed between the friction parts many times. It is ground into fine particles and evenly distributed. The fuel obtained through such treatment has high fuel properties and can contribute to reducing fuel costs and solving pollution problems.

However, in conventional homogeneous mixing devices, the rotary disk that rotates around the shaft held by the rotary arm is stacked with a large number of disks each having a central hole, and is firmly clamped from above and below, and the rotary disk rotates around the shaft held by the rotary arm. It is configured to rotate at high speed through frictional contact, and the fuel mixture introduced into the cylindrical chamber from the material inlet at the top of the cylindrical chamber hits the rotating body and is directed toward the wall surface of the cylindrical chamber due to the centrifugal force. Since the oil mixture is blown away, the oil mixture atmosphere can hardly enter between the shaft and the central hole of the disk. For this reason, due to the relatively high speed rotation between the shaft and the rotating disk, the interior is constantly running out of oil, and the inner diameter of the rotating disk is severely worn, requiring frequent replacement of the rotating disk. However, this method has disadvantages such as the need to stop processing operations during this time.

It is an object of the invention to provide an improved homogenizing device which significantly reduces wear on the inner diameter of the rotating disk and thus allows long-term continuous operation of the device.

The homogeneous mixing device according to the present invention includes a rotating body rotatably held on the central axis of a cylindrical chamber having an upper processed material inlet and a lower processed material outlet; A homogeneous mixing device having a rotating disk rotated in frictional contact with the inner wall of the cylindrical chamber about an axis rotatably held between extending upper and lower arms, from a central hole of the rotating disk to an outer periphery. It is characterized in that at least one extending oil inlet groove and at least one oil outlet groove are provided on the rotary disk to form an oil circulation passage passing through the axis of the rotary disk.

The oil suction groove is provided in at least one of the stacked disks, and is slightly deflected in the direction of rotation of the disk in order to suck in the oil atmosphere that has become fine due to frictional contact rotation between the outer periphery of the rotary disk and the inner wall of the cylindrical chamber. A radial groove formed in a straight or curved line. On the other hand, the discharge groove is preferably a linear or curved groove deflected in a direction opposite to the rotation of the rotary disk. If the number of disks with these grooves is small, they are stacked vertically apart from each other in a rotating disk.
The oil atmosphere sucked in from one side is forced to lubricate most surfaces of the shaft while being exhausted from the other side. However, it is also possible to use a large number of disks with these grooves formed thereon. Preferably, a disk having suction grooves is placed at the bottom of the rotary disk, and a disk having discharge grooves is placed at the top, so that the atomized oil mixture is transferred to the bottom of the rotary disk by relative frictional rotation between the rotary disk and the cylindrical inner wall. The fluid is sucked in more and circulated upward along the shaft and discharged from the discharge groove of the upper disk.

Next, preferred embodiments of the present invention will be explained with reference to the drawings.

The cylindrical chamber 1 has a casing 2 in which a hardened carbon steel ring constituting an inner wall portion 3 is attached to the inner body, and an upper cover 4, and a solid/liquid mixed fuel oil to be treated is placed on the top of the upper cover 4. A pipe 5 is connected thereto, and at least one inlet 6 is formed in the upper part of the upper cover 4 to introduce the material to be treated into the cylindrical chamber. 7 indicates a central shaft, which is rotatably held by a thrust bearing 15 in the lower part of the casing 2 and a roller bearing 9 in the upper cover 4, and the lower end of the central part is connected to a rotating mechanism such as an electric motor. It is adapted to be connected to an output shaft (not shown). A rotating body 8 is fixed to the central shaft 7, and this rotating body has three pairs of upper and lower holding arms 14. A vertical shaft 10 is rotatably held in each of these holding arms by ball bearings 11, 11, and a stack 12 of a large number of disks is attached to this shaft. This rotating disk 12 is provided so as to be in contact with the inner wall 3, and when the rotating body 8 rotates about the central shaft 7, the rotating disk 12 rotates due to friction with the inner wall 3. That is, the rotary disk is provided so as to rotate while revolving around the inner wall. By providing a partition wall 13 formed integrally with the rotating body 8 between each rotary disk 12, the material to be treated that adheres to the partition wall can be returned to the cylindrical wall by centrifugal force. Figure 3).

FIG. 4 shows a schematic cross-sectional view of the rotary disk 12 according to the present invention, in which the shaft 10 is inserted through the central hole, and the uppermost disk 12a among the many stacked disks is as shown in FIG. 5a. The lowermost disk 12b has a radial groove 17 biased in the direction of rotation of the rotary disk, with a radial groove 16 biased opposite to the direction of rotation of the rotary disk. For this reason, the fuel mixture (oil atmosphere) is refined by the relative frictional rotation between the rotating disk and the cylindrical inner wall.
is sucked in from the suction groove 17 of the lower disk 12b, fills the gap between the shaft 10 and the inner diameter of the disk, and rises sequentially, and is discharged from the discharge groove 16 of the uppermost disk 12a to the inner wall 3, and the fuel mixture is During miniaturization, the inner bore of the rotary disk and the surface of the shaft are lubricated, thereby preventing wear and tear on these members and allowing long-term operation.

The present invention can be used not only for uniformly mixing solid and liquid mixtures, but also for atomizing and uniformly mixing only solids.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the homogeneous mixing device according to the present invention; Fig. 2 is a plan view; Fig. 3 is a schematic explanatory diagram of the operation;
FIG. 4 is a schematic explanatory diagram of the rotary disk; FIGS. 5a and 5b are plan views showing the disk with grooves formed thereon. 1...Cylindrical chamber, 3...Inner wall part, 7...Central axis,
8... Rotating body, 12... Rotating disk, 12a,
12b... Disk, 13... Bulkhead, 16, 17
……groove.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A rotating body rotatably held on the central axis of a cylindrical chamber having an upper processed material inlet and a lower processed material outlet, and a rotating body extending from the rotating body in the radial direction of the cylindrical chamber. A homogeneous mixing device having a rotating disk rotated in frictional contact with the inner wall of the cylindrical chamber about an axis rotatably held between extending upper and lower arms, from a central hole of the rotating disk to an outer periphery. A homogeneous mixing device, characterized in that at least one extending oil inlet groove and at least one oil outlet groove are provided on the rotary disk to form an oil circulation passage through the axis of the rotary disk. 2. The mixing device according to claim 1, wherein the oil suction groove is a radial groove formed in at least one of the rotary disk stacks and deflected in the direction of rotation of the rotary disk. 3. The mixing device according to claim 1, wherein the oil drain groove is a radial groove formed in at least one of the rotary disk stacks and deflected in a direction opposite to the rotational direction of the rotary disk.