JP4412584B2 - Crushing fluid dryer - Google Patents

Description

  The present invention is not only used empty bottles and shells made of glass, but also sludge, marine wastes etc. (hereinafter referred to as raw materials) adjusted to a minimum water content to dry fine powder. It relates to a crusher.

Two types of crushing fluid dryers have been developed so far, one having two crushing impellers arranged at the bottom of the main body and the other having one arrangement improved.
The former type is registered as Japanese Patent No. 1596459 , and its configuration is illustrated in the publication of the above invention.
The latter type is registered as Patent Nos. 2775943 and 2775949,
The configuration is illustrated in the above publication.
Japanese Patent No. 1596459 Japanese Patent No. 2775943 Japanese Patent No. 2759849 JP-A-57-94354 Japanese Patent Laid-Open No. 55-120446 Japanese Patent Laid-Open No. 03-51609

  In both the inventions, the crushing fluid dryer constituting the invention is a power source for a crushing impeller disposed in the main body, a hot air blowing source for blowing hot air into the main body, and a raw material conveying device for sending the raw material from the raw material supply source into the main body The apparatus for collecting the product pulverized into fine powder from the main body is installed in a plant arranged around.

  The outline of the structure of the latter crushing fluid dryer is as follows: a duct opening communicating with a 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 a rotary shaft is attached to the bearing at the bottom. The crushing impeller that is pivotally supported is rotatably arranged, and the main body is provided with a hot air blow-in port, and the dropping port for dropping the raw material is arranged on the crushing impeller.

  The crushing of the raw material using the crushing fluid dryer having the above-described configuration is such that the crushing impeller is rotated at a high speed, hot air is blown into the main body, and the duct opening communicating with the device for collecting the product provided on the ceiling is always inside the main body. The air is continuously dropped onto the crushing impeller rotating at high speed from the raw material dropping port under the condition that the inside of the main body always generates an upward air flow by blowing hot air and sucking air.

The raw material continuously dropped on the crushing impeller rotating at a high speed from the raw material dropping port hits the crushing blade constituting the crushing impeller and is crushed into fine dust. Some of the crushed pieces are released in the direction of rotation of the crushing impeller that rotates at high speed, and some are drawn between the crushing blades of the crushing impeller.
The crushed pieces drawn between the crushing blades of the crushing impeller are dissipated in the rotation direction of the crushing impeller by the centrifugal force generated in the crushing impeller rotating at high speed.

  The fragment whose radiating direction is directed toward the ceiling of the main body falls toward the bottom of the main body due to its own weight. The crushed pieces are crushed by hitting the crushed blades of the crushing impeller. It is drawn between the crushing blades of the crushing impeller, and this is dissipated in the rotation direction of the crushing blades.

The crushed pieces whose release direction is directed toward the side wall of the main body are drawn between the crushing impeller rotating at high speed and the bottom, and are crushed and crushed by the crushing impeller. That is, it is made into a sliding crushing piece, and this is dissipated in the rotation direction of the crushing impeller. What is radiated toward the ceiling falls down toward the bottom of the main body due to its own weight.
This is repeated by mixing with the raw material continuously supplied.

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

And what is finely powdered until it loses its own weight falling against the rising airflow generated in the main body flows out of the main body through the duct opening provided on the ceiling of the main body. This is recovered by the product recovery device.
The fine powder pieces that do not lose their weight fall on the crushing impeller and repeat the above movement.

The crushing blades of the crushing impeller described in the publications of the inventions of the above-mentioned Patent Nos. 2775943 and 2775949 are arranged on the axis of the rotation axis as described in the illustrated embodiment of the publication. On the other hand, a plurality of crushing blades are protruded and fixed perpendicularly and radially, and suction vanes are arranged on both sides of the crushing blades.
Moreover, the idea which comprises the said invention is the idea which tries to exhibit the function which draws in the crushing impeller as much as possible the crushing piece which fell between the bearing arrangement | positioning side of a crushing fluid dryer, and a crushing impeller about a crushing impeller As a result, a configuration in which suction blades are arranged separately from the crushing blades on both sides of the crushing impeller was adopted.
Furthermore, the idea that constitutes the invention is that the crushed pieces and crushed pieces that fall and accumulate on the bottom of the main body are crushed by the crushing blades and suction blades of the crushing impeller that rotates at high speed at the bottom of the arcuate recess. The idea of pulverizing sliding crushing is adopted.

  The applicant of the present invention has come to create a crushing fluidized dryer that implements the above-described invention under the guidance of the inventor who has developed the above-described invention. As a result, the crushing fluid dryer that implements the above-described invention uses the crushing impeller having the above-described configuration, so that it does not perform the planned function, and the invention is based on the idea of sliding crushing of raw material fragments. First of all, the bottom of the main body, the crushing blade of the crushing impeller, and the suction blade are heavily worn, and the inconvenience that the crushing impeller and the bottom of the main body must be repaired frequently, It has been found that the load applied to the crushing impeller increases, which not only causes damage to the source motive, but also increases the electricity bill.

In order to eliminate the disadvantages of the invention described above, the inventors of the present invention have changed the idea that the raw material slides and crushes between the crushing impeller and the bottom surface of the bottom of the main body. Of course, the blades have the function of crushing and crushing the raw materials. Not only that, the crushing pieces dropped on the bearing side of the crushing impeller and the crushing pieces are crushed by the suction vanes arranged at both ends of the crushing impeller. Demonstrates the function of powerfully pulling between the crushing blades from both ends of the impeller toward the disc disposed in the center of the crushing impeller, and crushing pieces drawn between the crushing blades of the crushing impeller, crushing The crushing blade has a function that strengthens the function of releasing the piece in the direction of rotation of the crushing blade, and the hot air blown into the main body prevents the crushing pieces and crushed pieces from accumulating on the bottom of the main body. Ceiling direction Crushing fluidized drying that crushes densely crushed pieces, crushed pieces in the direction of the ceiling of the main body, collides the crushed pieces with each other, and further crushes and crushes the crushed pieces by crushing and crushing them to promote crushing and crushing Is to provide a machine.

A suction duct opening that leads to a device for collecting products is provided on the ceiling of the main body, the bottom is an arc-shaped concave surface, and a crushing impeller supported by a bearing is rotatably arranged on the bottom, and the raw material is provided on one side wall A raw material input port for supplying the raw material supplied from the supply device via the raw material transport mechanism onto the crushing impeller is arranged, and one of the bottom portions is directed to the rotation direction of the crushing impeller arranged rotatably on the bottom portion. And in the crushing fluid dryer which arranges the hot air blowing port which blows the hot air from the hot air supply source toward the arcuate concave surface of the bottom,
The configuration of the crushing impeller disposed at the bottom of the main body of the crushing fluid dryer described above is
In order to radially arrange a plurality of crushing blades whose upper side is a crushing side on a pipe cylindrical surface of a pipe having a disk inserted and fixed at one end, the lower side of each of the plurality of crushing blades is connected to the pipe of the pipe. Positioned toward the distal end side that is the other end of the cylindrical surface, and the base side that is the inner side of each crushing blade arranged radially is fixed to the disk surface,
The lower side of the twisted piece is fixed to the pipe end at the tip side of the cylindrical surface of the pipe, which is the outer side of each of the radially disposed crushing blades, and the other end of the pipe. The base side, which is the inner side of the twisted piece, is formed as a suction blade fixed to the blade end side, which is the outer side of each crushing blade, on the tip side, which is the other end of the cylindrical surface of the pipe, and the disk, pipe, crushing As a crushing impeller constituent member constituted of a twisted piece constituting a blade and a suction blade into an integral object,
The crushing impeller component is symmetric, the discs are back-to-back and the rotation shaft is inserted through the pipe and fixed, the pipe and the rotation shaft are fixed, a disk is arranged in the center, and twisted pieces on both sides Configured as a crushing impeller with suction vanes by
The crushing impeller described above is rotatably arranged on the bearing with a gap between the crushing blade and the arcuate concave surface of the bottom of the main body of the crushing fluid dryer,
A crushing fluid dryer characterized in that a hot-air blowing port is provided at a position facing the arcuate concave surface at the bottom.

  In the present invention, the main body of the crushing fluid dryer, and the crushing impeller disposed on the main body, as well as the crushing impeller, are configured as described above. Can be made.

  The structure of the main body of the crushing fluid dryer constituting the present invention is, as shown in FIG. 1, provided with a suction duct opening 3 leading to the device A for recovering the product on the ceiling 2 of the main body 1, and the bottom 4 has an arcuate concave surface, A crushing impeller 17 supported by a bearing is rotatably disposed on the bottom 4, and a 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 side wall. The raw material inlet 5 to be put on the crushing impeller 17 is disposed, and the bottom 4 is provided with a hot air blowing port 7 from a hot air supply source (not shown) on one side.

The structure of the crushing impeller 17 disposed on the bottom 4 of the main body 1 of the crushing fluid dryer described above has a pipe cylindrical surface of a pipe 12 with a disk 11 inserted and fixed at one end as shown in FIG. In order to arrange the plurality of crushing blades 13 radially, the lower side of each of the plurality of crushing blades is positioned toward the tip side that is the other end of the pipe cylindrical surface of the pipe 12 , While fixing radially, the base which is an inner side of each crushing blade 13 fixed radially is fixed to the surface of the disk 11 . Pipe cylindrical surface of said lower side pipe 12 the outer edge at the other end of the pipe a cylindrical surface of the pipe above the tip is twisted distally a (twisted) piece 14 at a predetermined angle of each crushing blade 13 described above on the distal end side, is formed as a suction vane fixing the Motohen is the inner side on the tip side of each of the crushing blades 13, the disc 11, the pipe 12, the crushing blade 13, the torsional piece 14 constituting the suction vane Is a crushing blade constituting member 15 configured as a single body. A side view of the crushing blade constituting member 15 is shown in FIG. 3, and a front view is shown in FIG.

As shown in FIG. 5, the crushing blade constituting member 15 is bilaterally symmetric, the discs 11 are back to back, the rotary shaft 16 is inserted into and fixed to the pipe 12, and the pipe 12 and the rotary shaft 16 are fixed to the center. It is said that it is configured as a crushing impeller 17 provided with a disk 11 and suction vanes 13 with twisted pieces 14 fixed on both sides.
By adopting this configuration, the crushing blade of the crushing impeller 17 of the present invention is different from the crushing impeller of the present invention so far, and the crushing blade not only becomes a blade having a suction function, but also the crushing blade 13 The twisted (twisted) piece 14 can also be configured as a sturdy blade.

  The arrangement position of the crushing impeller 17 to be arranged in the crushing fluid dryer described above is that the crushing blade of the crushing impeller that rotates the raw material crushing function at a high speed as described above, and the bottom plate of the crushing fluid dryer In the present invention, this idea was modified by incorporating the idea of performing crushing and crushing by crushing with crushing blades of a crushing impeller rotating at high speed. The crushing impeller 17 disposed on the bottom 4 of the main body 1 of the crushing fluid dryer having the above-described configuration is crushed on the arcuate concave surface of the bottom 4 of the main body 1 of the crushing fluid dryer. In order not to exhibit the sliding function of crushing the pieces, the crushing impeller 17 described above is rotatable to the bearing with a gap between the crushing blades and the arcuate concave surface of the bottom 4 of the main body 1 of the crushing fluid dryer. Decided to put in.

The arrangement position of the hot air blowing port 7 provided in the main body 1 of the above-described crushing fluid dryer is such that the above-mentioned crushing fluid dryer has changed the concept of sliding crushing so that crushing pieces and crushing pieces do not accumulate on the bottom. It was blowing hot air toward the inner arcuate concave surface of the bottom portion 4 toward the hot air blowing port 7 from one side of the bottom portion in the direction of rotation of the crushing impeller 17.

  The crushing of the raw material by the crushing fluid dryer according to the present invention operates the device for recovering the product, the hot air supply source, the raw material conveying device, and the crushing impeller drive source as in the conventional crushing fluid dryer. To do.

  In the main body 1 of the crushing fluid dryer, the crushing impeller 17 is rotated at a high speed by receiving a driving force transmitted from a driving source, and the hot air blown in the main body generates a rising air flow toward the duct opening in the ceiling. .

Under this state, the raw material is transported by the transport device and continuously fed from the raw material charging port 5 onto the crushing impeller 17 that rotates at high speed.
The raw material dropped on the crushing impeller 17 that rotates at high speed is broken into pieces by the crushing sides of the crushing blades 13 of the crushing impeller 17 that rotates at high speed.
The shattered debris shattered by crushing blade 13 of the crushing impeller 17 rotating at a high speed, there is also intended to be Hoteki in the direction of rotation of the crushing impeller 17 rotating at a high speed, also rotating impeller rotating at high speed 17 Some of them 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 dissipated outside the crushing impeller 17 rotating at high speed by the centrifugal force of the crushing impeller 17 rotating at high speed. .
Hoteki direction of crushing piece, it is needless to say that all Shugai direction of crushing impeller rotating at a high speed.

The debris released toward the ceiling 2 of the main body 1 falls on a crushing impeller that rotates at high speed by its own weight. In this case, the above operation is repeated.
Some of the debris released in the direction of the inner wall of the main body hits the inner wall and is pulled into the crushing impeller 17 that rotates at high speed.
Concave arc surface side Hoteki been crushing piece of the bottom 4 of the body 1, the crushing blade 13 of the crushing impeller 17 which rotates hot air and high-speed blown from one of the bottom 4 in the direction of rotation of the crushing impeller bottom It will be blown up from the arcuate concave surface, and will be swept into the crushing impeller 17 rotating at high speed from the arcuate concave surface at the bottom by the action of the suction blade, and will accumulate on the arcuate concave surface of the bottom 4. That is blocked.

Some of the debris that is radiated in the direction of the ceiling 2 of the main body 1 and falls due to its own weight falls to the suction blade side of the crushing impeller 17 that rotates at high speed.
Some of the broken pieces are crushed by hitting the upper surface of the twisted piece 14 constituting the suction blades, and other pieces are sucked between the crushing blades of the crushing impeller rotated at high speed by the suction blades 13.

Since each crushing blade 13 of the crushing impeller 17 of the present invention is integrally formed with the twisted piece 14 that becomes the suction blade 13, the suction force becomes large.
Since the crushing blade of the crushing impeller arranged in the crushing fluid dryer according to the present invention is not intended to cause wind but to crush the crushing object, Japanese Patent Publication No. 2-19370, As shown in Japanese Patent Application Laid-Open Nos. 57-94354 and 55-120446, the blade tip side of the crushing blade is notched narrowly to reduce the wind resistance and increase the rotational speed. Was common sense.
Therefore, when the object to be crushed is crushed, the blade tip side of the crushed blade may be damaged due to an impact when the object is crushed.
In order to eliminate the inconvenience, it is conceivable to reinforce the blade tip of the crushing blade by attaching a ring-shaped object to the blade tip of the crushing blade, as described in Japanese Patent Laid-Open No. 3-51609 in the illustrated embodiment. It was.
However, it is not technically easy to attach a reinforcing member to the blade tip of the crushing blade.

In the present invention, since the crushing blades 13 disposed in the crushing impeller 17 are the crushing blades 17 that also serve as an air suction function, the wing ends of the crushing blades 13 have a twisted angle that exerts an air suction function. The crushing blade 13 was attached with 14.
By making the crushing blades 13 constituting the crushing impeller 17 as described above, there is no need for reinforcing means at the blade ends of the crushing blades, and the wind resistance is reduced, and the crushing blades are in the direction of the disk. It was possible to obtain a crushing blade that exerted the function of sucking the raw material fragments strongly.

The debris sucked into the crushing impeller 17 from both sides of the crushing impeller by the attractive force of the suction vanes arranged on both sides of the crushing impeller 17 configured as described above is placed at the center of the crushing impeller 17 rotating at high speed. The disk 11 that hits the positioned disk 11 and is arranged in the center serves as a place where the sucked pieces are accumulated.
The debris that has accumulated in the place where the disk is located is dissipated over the entire circumference of the crushing impeller that rotates at high speed by the centrifugal force of the crushing impeller 17 that rotates at high speed.

This is performed continuously by mixing with the raw material continuously supplied.
In other words, the fragments crushed by the crushing impeller that rotates at high speed fall to the bottom of the main body many times due to their own weight, and the already-pulverized fragments are mixed with the raw material that is continuously added to perform the operation.
Fragment pieces released toward the ceiling of the main body collide with each other and are also crushed by the impact.

  This does not fall to the bottom due to its own weight, but the raw material crushed until it gets on the rising airflow generated in the main body is recovered as a product from a duct opening 3 provided in the ceiling 2 of the main body 1 to a device for recovering the product.

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

Explanation of symbols

1. Body 2. Ceiling 3. Duct opening 4. Bottom 5. Raw material inlet
7). 10. Hot air blowing port Crushing blade12. Pipe 13. Crushing blade 14. Twisted piece 15. Member 16. Rotating shaft 17. Crushing impeller

Claims (1)

A suction duct opening leading to a device for collecting products is provided on the ceiling of the main body, the bottom is an arc-shaped concave surface, and a crushing impeller supported by a bearing is rotatably arranged on the bottom, and the raw material is provided on one of the side walls. A raw material input port for supplying the raw material supplied from the supply device via the raw material transport mechanism onto the crushing impeller is arranged, and one of the bottom portions is directed to the rotation direction of the crushing impeller arranged rotatably on the bottom portion. and, in crushing fluidized bed dryer comprising disposing an arcuate concave surface facing the towards blowing hot air from a hot air supply source write No hot air blown write-mouth bottom,
The configuration of the crushing impeller disposed at the bottom of the main body of the crushing fluid dryer described above is
In order to radially arrange a plurality of crushing blades whose upper side is a crushing side on a pipe cylindrical surface of a pipe having a disk inserted and fixed at one end, the lower side of each of the plurality of crushing blades is connected to the pipe of the pipe. together located towards the distal end side which is the other end of the cylindrical surface, the Motohen is an inner side of each of the crushing blades arranged radially and fixed positioned circular board,
The lower side of the twisted piece is fixed to the pipe end at the tip side of the cylindrical surface of the pipe, which is the outer side of each of the radially disposed crushing blades, and the other end of the pipe. The base side, which is the inner side of the twisted piece, is formed as a suction blade fixed to the blade end side, which is the outer side of each crushing blade, on the tip side, which is the other end of the cylindrical surface of the pipe, and the disk, pipe, crushing As a crushing impeller constituent member constituted of a twisted piece constituting a blade and a suction blade into an integral object,
The crushing impeller component is symmetric, the discs are back-to-back and the rotation shaft is inserted through the pipe and fixed, the pipe and the rotation shaft are fixed, a disk is arranged in the center, and twisted pieces on both sides Configured as a crushing impeller with suction vanes by
The crushing impeller described above is rotatably disposed on the bearing with a gap between the crushing blade and the arcuate concave surface of the bottom of the main body of the crushing fluid dryer,
A crushing fluid dryer characterized in that a hot-air blowing port is provided at a position facing the arcuate concave surface at the bottom.

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