JP3100198U - Crushing fluidized dryer - Google Patents

Abstract

An object of the present invention is to improve the configuration of a crushing fluidized dryer, make the crushing blades arranged in the crushing fluidized dryer have a sturdy structure, and improve the raw material crushing function.
A crushing impeller integrally formed with a suction blade and a crushing blade, which are rotated by receiving a driving force from a driving source, is rotatably disposed on a bottom surface of a crushing fluidized dryer having an arcuate concave surface. The blast impeller has a configuration in which a hot air blowing port for blowing hot air from a hot air supply source is provided, and an inlet for feeding a raw material conveyed from the raw material supply source is provided on the crushing impeller.
[Selection diagram] Fig. 1

Description

The present invention is not only used empty bottles and shells made of glass, but also sludge and marine waste (hereinafter referred to as raw materials) whose moisture content has been adjusted to a minimum, and dried and fluidized into fine powder. It relates to a crusher.

As the crushing fluidized dryer, a type in which two crushing impellers are disposed at the bottom of the main body, and a type in which one is improved and arranged in one, have been developed so far.
The former type is registered as Japanese Patent No. 1290498, and its configuration is illustrated in the above publication of the present invention.
The latter type is registered as Japanese Patent No. 2759843 and Japanese Patent No. 2759849, the constitution of which is illustrated in the above publication.
Japanese Patent No. 1290498 Japanese Patent No. 2759843 Japanese Patent No. 2759849 Japanese Patent Publication No. 02-19370 JP-A-57-94354 JP-A-55-120446 JP-A-03-51609

In both inventions, the crushing fluidized dryer constituting the invention is a crushing impeller power source arranged in the main body, a hot air blowing source for blowing hot air into the main body, and a raw material transfer device for feeding raw materials from a raw material supply source into the main body. A device for collecting a product pulverized into a fine powder from the main body is installed around a plant provided around the device.

An outline of the configuration of the latter crushing fluidized dryer is that a duct opening communicating with the device for collecting products is provided on the ceiling of the main body, the bottom of the main body is formed as an arcuate concave surface, and the bottom has a rotating shaft on the bearing. A crushing impeller rotatably supported on the crushing impeller is provided rotatably, a main body thereof is provided with a hot-air blowing port, and a discharge port for dropping a raw material onto the crushing impeller is arranged.

The crushing of the raw material using the crushing fluidized dryer having the above-described configuration is performed by rotating the crushing impeller at a high speed, blowing hot air into the main body, and constantly opening the main body from the duct opening communicating with the device provided on the ceiling for collecting the product. In this situation, the material is continuously dropped from a material discharge port onto a crushing impeller rotating at a high speed under a condition in which a rising air current is always generated in the main body by blowing hot air and sucking air.

The raw material continuously dropped onto the crushing impeller rotating at a high speed from the raw material discharge port hits the crushing blades constituting the crushing impeller and is crushed into fine dust. Some of the crushed pieces are thrown in the direction of rotation of the crushing impeller rotating at high speed, and others are drawn between the crushing blades of the crushing impeller.
The crushed pieces drawn between the crushing blades of the crushing impeller are thrown in the rotation direction of the crushing impeller by centrifugal force generated by the crushing impeller rotating at high speed.

破 Fragments whose throwing direction is directed toward the ceiling of the main unit fall toward the bottom of the main unit by their own weight. This crushed piece hits the crushing blade of the crushing impeller and is crushed. It is drawn between the crushing blades of the crushing impeller, and is thrown in the rotation direction of the crushing blade.

The crushed pieces whose throwing direction is directed to the side wall side of the main body are drawn between the crushing impeller rotating at a high speed and the bottom portion, and are crushed and crushed by the crushing impeller. That is, the crushed pieces are thrown in the rotating direction of the crushing impeller. Anything thrown toward the ceiling falls by its own weight towards the bottom of the body.
This is repeated with the raw materials continuously supplied.

The crushed pieces and crushed pieces thrown toward the ceiling collide with each other in the ceiling direction and are further finely ground by the impact.
This is repeated while the drying of the crushed pieces and crushed pieces is promoted in the main body into which the hot air is blown.

What has been finely ground before losing its own weight that falls against the rising air current generated in the main body flows out of the main body through a duct opening provided in the ceiling of the main body on the rising air flow. This is collected in the product collection device.
The fine powder pieces that do not lose their own weight fall on the crushing impeller and repeat the above-described movement.

The crushing blades of the crushing impeller described in the publications of the above-mentioned Patent Nos. 2759843 and 2759849 are provided on the rotating shaft on the axis of the rotating shaft as described in the illustrated embodiment of the same publication. A plurality of crushing blades are protruded and fixed at right angles and radially, and suction blades are arranged on both sides of the crushing blades.
Further, the concept of the invention is that the crushing impeller has a function of drawing a crushed piece dropped between the bearing arrangement side of the crushing fluid dryer and the crushing impeller into the crushing impeller as much as possible. In this case, suction blades are provided separately from the crushing blades on both sides of the crushing wheel.
Further, the idea of constituting the invention is that crushed pieces and crushed pieces that have fallen and accumulated on the bottom of the main body are crushed by the crushing blades and suction blades of the crushing impeller rotating at high speed in the arc-shaped concave surface at the bottom. The concept of sliding crushing, which is called crushing, is adopted.

The applicant of the present invention has come to create a crushed fluidized dryer that implements the above-described invention under the guidance of the inventor who developed the above-mentioned invention, but in preparing the same, studied with the inventor of the above-mentioned invention. As a result, the crushing fluidized dryer in which the above-described invention has been implemented uses the crushing impeller having the above-described configuration, so that it does not perform its intended function, and is based on the idea that the invention is based on the concept of sliding crushing of raw material fragments. First of all, from the point of view of the technology, the bottom of the main unit, the crushing blades of the crushing impeller, and the suction blades are severely worn, and the crushing impeller and the bottom of the main unit must be repaired frequently, It has been found that the load on the crushing impeller increases, which not only causes damage to the source motive, but also increases the electricity cost.

In order to solve the above-mentioned disadvantages of the present invention, the inventors of the present invention have revised the idea that the crushing impeller slides and crushes the raw material between the crushing impeller and the bottom surface of the bottom of the main body, and crushes the crushing impeller. Of course, the blades have the function of crushing and crushing the raw material, but not only that, but also the crushed pieces and crushed pieces that have fallen on the bearing side of the crushing impeller are strongly drawn between the crushing blades of the crushing impeller. A crushing blade that has a function of exerting a function of enhancing the function of releasing the crushed pieces and the crushed pieces between the crushing blades of the crushing impeller in the rotation direction of the crushing blade, The blast and crushed pieces are prevented from accumulating on the bottom of the main body by the hot air blown into the main body, and the crushed pieces and crushed pieces that are densely thrown toward the ceiling of the main body are separated from each other in the direction of the ceiling of the main body. Let them collide Fragments by further crushing the crushed pieces, the crushed, is intended to provide a crushing fluidized bed dryer to accelerate the crushing and pulverized.

A suction duct opening leading to the product collection device is provided on the ceiling of the main unit, the bottom is an arc-shaped concave surface, and a crushing impeller rotatably mounted on a bearing is arranged at the bottom, and the raw material is placed on one of the side walls. In the crushing fluidized drying, which is provided with a raw material charging port for charging a raw material onto a crushing impeller from a raw material transport mechanism from a supply device, and a bottom provided with a hot air blowing port from a hot air supply source on one side. The configuration of the crushing impeller arranged at the bottom of the main body of the crushing fluidized dryer is such that a plurality of crushing blades each having an upper side as a crushing side, and a lower side on a pipe cylindrical surface of a pipe having a disk inserted and fixed at one end. The pipe is fixed radially toward the distal end of the pipe cylindrical surface, the base side is fixed to the disk surface, and the wing tip of each of the crushing blades and the tip of the pipe cylindrical surface of the pipe are twisted. The lower side with a predetermined angle The disk, the pipe, the crushing blade, and the twisted piece forming the suction blade are integrally formed as suction blades having a base fixed to the tip end side of each of the crushing blades on the tip side of the pipe cylindrical surface of the pipe. The member, the member, left and right symmetrically, the disk is back to back and a rotating shaft is inserted and fixed in the pipe, the pipe and the rotating shaft are fixed and a disk is arranged in the center, and on both sides The crushing impeller is configured as a crushing impeller having suction blades formed by twisted pieces, and the crushing impeller is rotatably disposed on a bearing with a gap between the crushing impeller and an arc-shaped concave surface at the bottom of the body of the crushing fluidized-drying machine. A crushing fluidized dryer in which a hot air blowing port is provided at a position facing an inner arc-shaped concave surface at the bottom.

In the present invention, since the main body of the crushing fluidized dryer and the crushing impeller arranged therein are configured as described above, damage to the main body and the crushing impeller is extremely prevented, and the crushing efficiency of the raw material is improved. Can be done.

As shown in FIG. 1, the structure of the main body of the crushing fluidized dryer that constitutes the present invention is provided with a suction duct opening 3 that communicates with a device A for collecting products on the ceiling 2 of the main body 1, and the bottom 4 has an arc-shaped concave surface. A crushing impeller 17 supported by a bearing is rotatably disposed on the bottom 4, and the raw material is disposed on the bottom of the main body 1 through a raw material transport mechanism B from a raw material supply device (not shown) on one of the side walls. A raw material inlet 5 for charging the crushing impeller 17 is provided, and a hot air blowing port 7 from a hot air supply source (not shown) is provided on one side of the bottom 4.

The configuration of the crushing impeller 17 disposed on the bottom portion 4 of the main body 1 of the crushing fluidized-dryer described above includes a pipe cylindrical surface of a pipe 12 having a disc 11 inserted and fixed at one end as shown in FIG. Each of the plurality of crushing blades 13 having the lower side radially fixed toward the distal end side of the pipe cylindrical surface of the pipe 12 and the base side fixed to the disk 11 surface, and A twisted (twisted) piece 14 is formed at a predetermined angle on one end to the tip end of the pipe cylindrical surface of the pipe 12, and a base is set on the tip end side of each of the crushing blades 13. The disk 11, the pipe 12, the crushing blade 13, and the torsion piece 14 forming the suction blade are integrally formed as a member 15 as a suction blade fixed to the above. FIG. 3 shows a side view of the member 15 and FIG. 4 shows a front view thereof.

As shown in FIG. 5, the member 15 is symmetrical as shown in FIG. 5, the disk 11 is back-to-back, a rotary shaft 16 is inserted through the pipe 12 and fixed, and the pipe 12 and the rotary shaft 16 are fixed and the disk 11 is fixed at the center. And a crushing impeller 17 having suction blades 13 with twisted pieces 14 fixed on both sides.
With this configuration, the crushing blade of the crushing impeller 17 of the present invention is different from the crushing impeller of the invention of the present invention, and the crushing blade is not only a blade having a suction function but also the crushing blade 13. The twisted (twisted) pieces 14 can also be configured as sturdy blades.

The disposition position of the crushing impeller 17 arranged in the crushing fluidized dryer is the same as the crushing impeller of the crushing impeller that rotates the raw material crushing function at high speed as described above, and the bottom plate of the crushing fluidized dryer. In the present invention, the idea of sliding crushing by grinding with the crushing blade of a high-speed rotating impeller was adopted, and this idea was modified. The crushing impeller 17 disposed on the bottom 4 of the main body 1 of the crushing fluidized-dryer having the above-described configuration is crushed by the crushing impeller 13 of the crushing impeller 17 on the arc-shaped concave surface of the bottom 4 of the main body 1 of the crushed-fluidized dryer. In order not to exhibit the sliding function of crushing the pieces, the crushing impeller 17 is rotatable on a bearing with a gap between the crushing blade and the arc-shaped concave surface of the bottom 4 of the main body 1 of the crushing fluidized-drying machine. Decided to place

The arrangement position of the hot air blow-in port 7 provided in the main body 1 of the crushing fluidized dryer is set to be toward the inner arc-shaped concave surface of the bottom 4 by the above-mentioned crushed fluidized dryer having changed the concept of sliding crushing. The location where hot air was blown.

The crushing of the raw material by the crushing fluidized dryer according to the present invention is performed by operating a device for collecting the product, a hot air supply source, a raw material transport device, and a driving source of the crushing impeller, similarly to the conventional crushed fluidized dryer. I do.

In the main body 1 of the crushing fluidized-dryer, the crushing impeller 17 rotates at high speed under the transmission of the driving force from the driving source, and the blown hot air generates an upward airflow toward the duct opening of the ceiling in the main body. .

In this state, the raw material is conveyed by the conveying device and is continuously input from the raw material input port 5 onto the crushing impeller 17 rotating at high speed.
The raw material that has fallen on the crushing impeller 17 that rotates at high speed is broken into pieces by the crushing edge of the crushing blade 13 of the crushing impeller 17 that rotates at high speed.
The crushed side crushed into pieces is also thrown by the crushing blade 13 of the crushing impeller 17 rotating at high speed in the direction of rotation of the crushing impeller 17 rotating at high speed, and the rotating impeller 17 rotating at high speed. Some are caught between the crushing blades 13.
The crushed pieces caught between the crushing blades 13 of the crushing impeller 17 rotating at high speed are thrown out of the crushing impeller 17 rotating at high speed by the centrifugal force of the crushing impeller 17 rotating at high speed. .
The direction in which the fragments are released is, of course, a direction outside the entire circumference of the crushing impeller rotating at a high speed.

The fragments released toward the ceiling 2 of the main body 1 fall on the crushing impeller rotating at high speed by its own weight. This operation is repeated.
Fragments thrown toward the inner wall of the main body may hit the inner wall and be drawn into the crushing impeller 17 rotating at high speed.
The fragments released to the arc-shaped concave side of the bottom 4 of the main body 1 are blown up from the arc-shaped concave at the bottom by the hot air blown into the bottom 4 and the crushing blades 13 of the crushing impeller 17 rotating at high speed. By the action of the blades, the blades are dredged from the arcuate concave surface at the bottom into the crushing impeller 17 rotating at a high speed, and the accumulation on the arcuate concave surface at the bottom 4 is prevented.

Some of the fragments that are thrown toward the ceiling 2 of the main body 1 and fall by their own weight may fall on the suction blade side of the crushing impeller 17 that rotates at high speed.
Some of the fragments may be broken by hitting the upper surface of the twisted pieces 14 constituting the suction blades, while others may be sucked by the suction blades 13 between the crushing blades of the crushing impeller rotating at high speed.

Since the crushing blades 13 of the crushing impeller 17 of the present invention are integrally formed with the twisted pieces 14 serving as the suction blades 13, the suction force is large.
The crushing blade of the crushing impeller arranged in the crushing fluidized dryer according to the present invention is not for generating wind but for crushing the object to be crushed. As shown in JP-A-57-94354 and JP-A-55-120446, the crushing blade has a configuration in which the blade tip side is notched narrowly to reduce wind resistance and increase the rotation speed. Was considered common sense.
For this reason, when crushing an object to be crushed, there is a problem that the wing tip side of the crushing blade may be damaged by an impact at the time of crushing the object.
In order to solve the inconvenience, it is conceivable that a ring-shaped object is attached to the wing tip of the crushing blade to reinforce the wing tip of the crushing blade, as shown in the embodiment shown in JP-A-3-51609. I was
However, it is not technically easy to attach a member for reinforcing the blade tip of the crushing blade.

In the present invention, the crushing blades 13 arranged on the crushing impeller 17 are used as the crushing blades 17 which also serve as an air suction function. The crushing blade 13 was provided with the crushing blade 14.
The crushing impeller 17 constituting the crushing impeller 17 has the above-described structure, so that the wind resistance is reduced without taking the reinforcing means on the wing tip of the crushing blade as in the past, and the disk direction of the crushing blade is reduced. The crushing blade could exhibit the function of sucking the raw material debris strongly.

The debris sucked into the crushing impeller 17 from both sides of the crushing impeller by the attraction of the suction impellers arranged on both sides of the crushing impeller 17 configured as described above is located at the center of the crushing impeller 17 rotating at high speed. The disk 11 which abuts against the located disk 11 and is located in the center, so to speak, is a place where the sucked fragments are collected.
The debris that has been trapped at the location where the disk is located is thrown over the entire circumference of the crushing impeller rotating at high speed by the centrifugal force of the crushing impeller 17 rotating at high speed.

This is continuously performed by mixing with the continuously charged raw materials.
In other words, the fragments crushed by the crushing impeller rotating at high speed fall to the bottom of the main body by their own weight many times, and the above-mentioned operation is performed by mixing the already crushed fragments and the raw material that is continuously charged.
The crushed pieces released toward the ceiling of the main body collide with each other and are crushed by the impact.

{Circle around (4)} This material does not fall to the bottom due to its own weight, and the raw material pulverized before riding on the rising air current generated in the main body is collected as a product from the duct opening 3 provided in the ceiling 2 of the main body 1 by a device for collecting the product.

Sectional drawing of a crushing fluidized dryer. The perspective view of the member which comprises a crushing impeller. The side view of the member which comprises a crushing impeller. The front view of the member which comprises a crushing impeller. The perspective view of the crushing impeller assembled with the member which comprises a crushing impeller.

Explanation of reference numerals

1. Main body 2. Ceiling 3. 3. Duct opening Bottom 5. Raw material inlet 11. Crushing blades 12. Pipe13. Crushing blades 14. Twist piece 15. Member 16. Rotating shaft 17. Crushing impeller

Claims (1)

A suction duct opening leading to the product collection device is provided on the ceiling of the main unit, the bottom is an arc-shaped concave surface, and a crushing impeller rotatably mounted on a bearing is arranged at the bottom, and the raw material is placed on one of the side walls. In the crushing fluidized drying, which is provided with a raw material charging port for charging a raw material onto a crushing impeller from a raw material transport mechanism from a supply device, and a bottom provided with a hot air blowing port from a hot air supply source on one side. The configuration of the crushing impeller arranged at the bottom of the main body of the crushing fluidized dryer is such that a plurality of crushing blades each having an upper side as a crushing side, and a lower side on a pipe cylindrical surface of a pipe having a disk inserted and fixed at one end. The pipe is fixed radially toward the distal end of the pipe cylindrical surface, the base side is fixed to the disk surface, and the wing tip of each of the crushing blades and the tip of the pipe cylindrical surface of the pipe are twisted. The lower side with a predetermined angle On the tip side of the pipe cylindrical surface of the pipe, as a suction blade having a base fixed to the blade end side of each of the crushing blades, the disk, the pipe, the crushing blade, and the twisted pieces constituting the suction blade were integrally formed. With the member, the member is symmetrical, the disk is back-to-back, a rotary shaft is inserted through the pipe and fixed, the pipe and the rotary shaft are fixed, a disk is arranged in the center, and twisted pieces on both sides The crushing impeller is configured as a crushing impeller provided with suction blades, and the crushing impeller is rotatably disposed on a bearing with a gap between the crushing blade and an arc-shaped concave surface at the bottom of the main body of the crushing fluidized dryer, A crushing fluidized dryer characterized in that a hot air blowing port is provided at a position facing the inner arc-shaped concave surface at the bottom.

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