JP2945603B2 - Rotary dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary drying apparatus for drying an object having a high water content such as sludge.

[0002]

2. Description of the Related Art A rotary type drying apparatus is a rotary drum drying apparatus, in which a material to be dried is attached to a drum surface and dried. Drying is performed by supplying dry air or steam from the inside of the drum or from the outside of the drum. The present invention supplies dry air to the inside of the rotating drum,
A device belonging to a device for drying while rotating, and which belongs to the conventional device, is Japanese Patent Publication No. 58-50159. This prior patent has a structure in which a plurality of scraping blades are arranged along the inner wall circumferential surface of the rotary cylinder and the scraping blades are drivable so as to overlap each other. This structure prevents the processed material with a high moisture content from adhering to the blades, and the blades act to scrape the processed material adhered to other blades, so that the processed material uniformly contacts hot air. It is supposed to. In the present invention, the processed material is supplied from one upper end of the rotating drum and discharged from the lower end of the other end, the dry air is created by burning a burner, and the rotating drum is a roller on which rails around the drum rotate. It is arranged to ride on and is rotating. Japanese Patent Publication No. 2-23240 discloses a method in which a processed material is put into a cylindrical body having a large number of formed / vented holes on a peripheral wall, and the processed material is rotated and dried in a drying chamber. And a pressure difference is provided between them to extrude a semi-dried processed product from the molding / vent hole to obtain a chip-shaped dried product. A major object of the present invention is to obtain a certain granular dried product, which is realized by holes provided in the peripheral wall of the rotary cylinder serving as entrances and exits of dry air and outlets of the granular dried product. Further, the holes play a role of separating water in the early stage of the high-moisture treated product, so that there is a device that can perform a pretreatment for spin drying. The dry air is supplied from one of the drying chambers, passes through the peripheral wall of the rotary cylinder, and is discharged from the internal dry air outlet.
The rotation of the rotating cylinder is performed by a motor connected to a short pipe connected to one wall of the rotating cylinder, the cylinder itself being placed on a rotatable roller disposed in a drying chamber.
The processing object is loaded and unloaded from the inlet provided on the other wall where the rotating short tube of the rotary cylinder is provided, and is extruded in a semi-dried state from the rotary cylinder into a chip shape, and the floor in the drying chamber. It is configured to be deposited on the surface and carried out of the drying chamber at regular intervals. Although the carrying out is not specifically described, the structure is understood to be carried out by a person with a scoop or the like. Japanese Patent Application Laid-Open No. 4-1577000 discloses a method of adjusting the amount of heat by detecting the temperature of exhaust gas, the required power of a rotating drum, the amount of processed material, and the like in a rotary dryer. The apparatus of the present invention has a structure in which a stirring blade for a processed material is disposed on an inner wall in a rotary drum, and a separate rotating blade for stirring is built in, and the processed material is supplied from one of the rotary drums and discharged to the other. And the dry air is supplied by a burner. The rotation of the drum is performed by a roller that contacts the outer periphery of the drum. In the case of the present invention, the processing object is effectively stirred by the blade fixed to the rotary drum and the rotary blade driven separately.

[0003]

The rotary drying apparatus which puts the processed material into the rotary cylinder and dries it is roughly divided into a structure for loading / unloading the processed material, a structure for stirring the processed material during rotation, It is composed of three structures of supply and discharge of dry air. There are two types of processing, a batch type and a continuous type. The most important issues are the method of loading / unloading the processed material and the stirring of the processed material during rotation. In particular, the agitation depends on the water content of the processed material, and even if a stirring blade is provided, it adheres to the blade and solidifies, losing the stirring function, and the processed material adheres to the wall, making it impossible to carry out or rotating. The weight of the drum may be imbalanced, which may affect the rotation control and cause dangerous situations. Therefore, in the rotary type drying apparatus, the processed material is carried in evenly, and stirring is performed so as not to form a large lump.
It is necessary to take measures to prevent solidification on the walls and stirring blades and to smoothly remove the processed material from the inside of the drum after drying is completed. In Japanese Patent Publication No. 58-50159, a plurality of scraping blades are arranged along the inner wall circumferential surface of the rotating cylinder.
The lifted blades have a structure that can be driven so as to overlap with each other, preventing the processed material having a high moisture content from adhering to the blades. It acts as a scraper so that the processed material comes into contact with the hot air evenly. Due to the structure and purpose of this blade, the shape and number of rotating blades are limited to a certain level, and there is no opportunity to scrape the processed material attached to the back side of the blade.
Further, if the maintenance of the rotary shaft in the drive connection portion of the blade is neglected, the blade will not operate due to the processing object attached thereto, or will not operate due to the corrosion of the processing object due to the influence of moisture. If even one of these blades does not work, it will affect other blades in contact with it, so that one round of the blade cannot be used. Although it is conceivable to apply grease or the like to the shaft portion, it is not preferable to mix grease in organically processed products such as for drying foods and for reusing the dried products as fertilizer, since the product value is lost. In addition, the discharge of the dried product is performed from one end of the drum, and it is difficult to carry out the product without taking measures such as allowing the drum to be inclined. .

Japanese Patent Publication No. 2-23240 discloses a method in which a processed material is put into a cylindrical body having a large number of molded / vented holes on a peripheral wall, and the processed material is rotated and dried in a drying chamber. A pressure difference is provided between the inside of the drying chamber and the semi-dried processed material is extruded from the molding / vent hole to obtain a chip-shaped dried product. A major object of the present invention is to obtain a certain granular dried product, which is realized by holes provided in the peripheral wall of the rotary cylinder serving as entrances and exits of dry air and outlets of the granular dried product. However, the holes are easily clogged with the processed material, and it remains doubtful whether the holes will be completely secured even if they fall due to their own weight, and if you do not take measures such as injecting high pressure air somewhere to secure the holes, There is a concern that dry air will not pass through the cylinder. In addition, the processing object is put in and out from the inlet provided on the other wall where the rotating short pipe of the rotary cylinder is located, and is extruded into a chip shape from the rotary cylinder in a semi-dry state, and is dried. And is carried out of the drying chamber at regular intervals. The carrying out is not described specifically, and it is understood that people carry it out with a scoop, etc., but this is a method with poor workability, and it is necessary to take measures such as tilting the floor of the drying room There is. In addition, the rotation in this case is to support the cylinder with a roller and rotate the rotation axis.The roller supporting the cylinder is on the floor of the drying chamber, and when the semi-dry processed material accumulates here, the roller Adhesion or clogging of the rotating shaft may hinder rotation. It is dangerous to leave a cause such as a load on the rotation or a corrosion of the rotating shaft in the rotary type drying apparatus, and the maintenance of the apparatus requires cost and time.

Japanese Unexamined Patent Publication No. 4-157000 discloses a method of adjusting the calorific value of a rotary dryer by detecting the temperature of the exhaust gas, the required power of the rotary drum, the amount of processed material, and the like. In addition to the arrangement of the stirring blades of the processed material on the inner wall of the rotating drum, the device incorporates a separate rotating blade for stirring, and the processed material is supplied from one of the rotating drums and discharged to the other, Dry air is supplied by a burner. A blade fixed to a rotating drum,
It can be seen that the processed material is effectively agitated with the rotating blades that are separately driven to rotate.However, measures for the processed material attached to the blades have not been considered, and the blades fixed to the rotating drum are particularly hook-shaped. There is a possibility that solid matter adhered to the inside cannot be discharged. Therefore, the present invention has a structure in which the stirring blade fixed to the rotating drum does not easily adhere to the processing object, and the loading and unloading of the processing object does not require human hands. It is an object of the present invention to obtain a rotary dryer that does not hinder rotation.

[0006]

SUMMARY OF THE INVENTION The present invention provides the following rotary dryer in order to achieve the above objects. That is, it is composed of a rotating drum and a fixed head plate, and the fixed head plate has an inlet / outlet for dry air,
Providing a loading / unloading port for the material to be dried, and a rail for sliding a transfer device for loading and unloading the material to be dried in and out of the loading / unloading port, and a rotating drum for stirring and drying a plurality of the material to be dried. Provided is a fixed protrusion for carrying out, the protrusion is a rotary drying device characterized in that one is a scooping concave portion and the other is a crushing blade of a material to be dried. It is arranged in parallel with the rotation direction of the rotating drum on the inner peripheral wall, and when drying the drying object,
The rotating drum is rotated in the direction in which the crushing blade of the dried material of the fixed protrusion is the leading end in the rotation direction, and when the drying operation is carried out, the scooping concave portion of the fixed protrusion is the leading end in the rotating direction. The rotary drying device is configured such that the scooping concave portion of the fixed protrusion is a transport device that transports the material to be dried onto the transport device for loading and unloading, and the transport device for loading and unloading is further rotated. Is disposed separately from the drying device, and when the object to be dried is carried in, the rotating mechanism gradually moves from the back of the rotating drum to the entrance side and has a control mechanism for carrying the object to be dried into the rotating drum on average. It is a mold drying device. According to the apparatus of the present invention as described above, the rotating device is disposed outside the rotating drum and does not come into contact with the processing object or the moisture, and the processing object is uniformly loaded into the rotating drum. It is configured so that the discharge can be carried out without human intervention using the carrying-in / out carrying device used for carrying in, and the stirring blade of the rotating drum has a structure that prevents the adherence of the processed material, and At the time of unloading the processed material, it has a function of carrying out the processed material onto the loading / unloading transfer device. In addition, when the fixed protrusions are arranged in a staggered arrangement, both the stirring efficiency and the transport efficiency are improved. Also, if you are prepared for some degree of adhesion, arrange the fixed protrusions in parallel with the rotation direction of the rotating drum, and mix the ones with the scooping concave parts facing in the opposite direction instead of the same direction as the rotation direction of the rotating drum. Alternatively, the rotation of the rotating drum may be set in a fixed direction to realize stirring and transport. The dry air may be a burner disposed at the entrance or exit, or provided separately formed dry air with an inlet and an outlet,
It may be supplied from the inlet and discharged from the outlet.
At this time, one of the entrances may not be on the fixed end plate side but may be on another end plate of the rotary drum. The loading / unloading transport device used for loading / unloading is moved and inserted from outside along the rail fixed to the fixed end plate, and moves below the loading / unloading transport device on the rail. Rollers are arranged. Even if the rail is configured halfway through the rotary drum, the loading / unloading transport device itself can be loaded deeply. The loading / unloading transport device is configured to be sufficiently longer than the length of the rotary drum, and the other end inserted into the rotary drum is fixed to a leg provided with a moving roller. The height is adjusted to accommodate the loading / unloading port. Further, if the legs of the loading / unloading transfer device are configured to move at a constant speed by automatic control, it is better to uniformly supply the processed material into the rotating drum. The loading / unloading port of the rotating drum is configured so that the door is closed when the loading / unloading transfer device is removed, and this port is also used as an inspection port in the drum, but there is a separate inspection port. It does not matter. The protrusion is provided in a straight line from the peripheral wall to the center of the rotary drum in parallel with the rotation direction of the rotary drum, so that the material to be dried does not easily adhere. The shape of the protrusion on the side of the scooping concave portion has a structure that can receive a dried material such as a semicircular arc shape, a V character shape, and a plate-like crushing blade is parallel to the rotating direction on the opposite surface. So that it is fixed. This crushing blade is provided in any concave shape, but can be omitted only in the case of a V-shape. That is, the V-shaped scooping concave portion forms a sharp blade on the convex side.
The crushing blade also serves to maintain the strength of the scooping recess.

[0007]

In the rotary drying apparatus according to the present invention, the doors for loading and unloading the processed material are opened, and the transporting apparatus for moving in and out is once inserted to the back along the rail fixed to the fixed end plate. After transporting the dried product evenly from the back of the rotating drum toward the fixed end plate while moving the loading / unloading transport device, remove the loading / unloading transport device, close the lid, and rotate the rotary drum. At the same time, heated drying air is supplied into the rotary drum from the air inlet, and the object to be dried is dried while being discharged from the air outlet. The rotation of the rotating drum is
During the drying process, the crushing blade surface of the projection fixedly arranged on the rotating drum is rotated so as to be ahead of the rotating direction, and the object to be dried falls from the upper part of the rotating drum and is crushed by contacting the crushing blade. As the drying proceeds, the pulverization of the material to be dried, which tends to be clumped, is promoted. When the drying is completed, the moving carrying-in / out carrying device is again inserted to the back, and the carrying-in / out carrying device is driven in the discharge direction.However, the material to be dried is carried to the carrying-in / out carrying device. When the rotating drum rotates in the reverse direction and the scooping recess side of the protrusion is the tip of the rotation direction, and the object to be dried is received by the scooping recess and rotated upward, the object to be dried is loaded and unloaded from the scooping recess at an appropriate inclination. To slide down on the transporting device.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The present invention is a drying device for high moisture content, for example, sludge is generated from wastewater treatment equipment as industrial waste, and it is difficult to transport and reuse it with high moisture, and especially organic sludge is used as a fertilizer. In the case of re-use, as it is dried, handling such as transport and accumulation is more convenient, and the cost of re-use may be reduced. In addition, refuse is required to reduce fertilizer like organic sludge, and recently household treatment equipment has been developed.However, the amount of refuse generated from public facilities, stores, and companies is large, and the treatment method is Depends on disposal, but also drying offers opportunities for reuse. Other methods such as starch and salt are generally produced by drying from a high-concentration liquid material with a rotary drum dryer,
When dried by the apparatus of the present invention, a product can be obtained in a pulverized state at the end of drying. In addition, it is a rotary type that can be used to dry soil, etc., to obtain a large amount of culture soil, and a high-moisture material to be dried is dried and crushed in a rotating drum and automatically operated until it is carried out. The present invention relates to a drying device. Specifically, the drying device is composed of a rotating drum and a fixed head plate, and the fixed head plate is provided with an inlet / outlet for dry air, and a loading / unloading port for a material to be dried is provided, and the drying unit is loaded / unloaded from the loading / unloading port. A rail is provided to slide the transfer device for loading and unloading the dried material to be dried,
The rotating drum is provided with a plurality of fixed projections for stirring and carrying out the plurality of objects to be dried, one of which is a scooping recess and the other is a crushing blade for the object to be dried. And the fixed protrusion of the rotating drum is arranged so that the scooping concave portion is parallel to the rotating direction of the rotating drum, and when the drying operation of the material to be dried is performed, the rotating drum is fixed to the fixed protrusion and the crushing blade of the object to be dried is rotated in the rotation direction. It is rotated in the direction of the leading end, and during the unloading operation of the object to be dried, it is rotated in the reverse direction so that the scooping concave portion of the fixed projection becomes the leading end in the rotation direction, and the scooping concave portion of the fixed projection carries the object to be dried. -The transport device is configured to be transported onto the unloading transport device. The carry-in / carry-out transport device is arranged separately from the drying device, and when the material to be dried is carried in, it gradually moves from the back of the rotating drum to the entrance side, and the material to be dried is carried into the rotating drum on average. It has a control mechanism. FIG. 1 is a three-dimensional perspective view of the present apparatus, and (1) is an exterior covering the present apparatus, in which a heat insulating material is provided to prevent cooling of a rotating drum heated by dry air. (2) is a rotating drum main body, which is formed in a cylindrical body, and a rail (10) for rotational driving is provided around an arbitrary portion of an outer wall thereof. This rail (10)
Is engaged with a roller (8) holding a rotating drum (2), so that the drum rotates at a fixed position. The rail (10) is provided with a gear for transmitting rotational power, but may be provided on one of the rails or on all the rails. It is preferable that all the rails are provided with gears, because the transmission of rotational power is dispersed, the rotation of the rotary drum is smoothly performed back and forth, and the load on the roller (8) is reduced. Therefore, the roller (8) also has a gear depending on the presence or absence of the gear on this rail. The roller (8) is connected by a rotating shaft (11) to a motor (12) disposed outside the outer case (1) via a transmission gear (9), and rotational power is transmitted. The motor (12) may be further provided with an inverter or the like to control the rotation, and the rotation control function of the rotary drum is freely installed by a known technique. The fixed end plate (13), which does not rotate, is provided so as to cover one open end of the rotating drum, and simple sealing is performed. The fixed end plate (13) has a port (6) for loading / unloading the object to be dried.
Is provided, and a door is provided. The inspection port (7) has the same structure as the loading / unloading port for the object to be dried, but may be replaced with the loading / unloading port (6). Further, an inlet (4) and an outlet (5) for drying air are respectively connected to a drying air generator (3) via a transfer duct.

FIG. 2 is a plan view of a rotary drum portion of the apparatus. Two rollers (8) are arranged on one rail (10) so as to correspond to the left and right sides of the rotary drum.
a) and (8b) exist, are connected by a chain, and transmit either one of them.
However, this chain may or may not be present. FIG. 2 shows the transmission gear (9) directly connected to the motor. Further, the connection between the rotary power transmission shaft (11) and the transmission gear may be any known method such as connection by a chain or the like in addition to direct connection by a gear.

FIG. 3 is a cross-sectional view showing the state of insertion of a conveyor (15), which is a transfer device for carrying in and out the object to be dried in the present apparatus. The lid of the loading / unloading port (6) of the fixed end plate (13) is opened, and the conveyor (15) is fixed to the fixed end plate (13) via a roller (not shown) provided below the conveyor (15).
Is inserted along a rail (14) fixed to the rail. (1
6) is a reinforcing material for the rail (14), and the rail (14)
Is located halfway inside the rotating drum (2) and exists as it is when the conveyor (14) is removed,
In order to prevent the material to be dried from accumulating on the rail, it may be configured to be folded. In this case, the reinforcement (1) is driven by electric or cylinder drive using air or hydraulic pressure.
It is preferable that the rail (14) be folded toward the fixed end plate (13) in connection with (6). For a specific implementation, a configuration that can be considered by those skilled in the art is sufficient. FIG. 4 is a cross-sectional view of the rotating drum part of the apparatus of the present invention. On the inner wall of the rotating drum (2), a projection (1) for crushing, stirring, and carrying out the object to be dried is provided.
7) are fixed. In this arrangement, it is preferable that the scooping recess (17a) side is oriented in a fixed direction in the cross-sectional structure of the projections, and that adjacent projections are arranged in a staggered arrangement. This is because the scooping recess has an unloading function,
The opposite side (17b) has a crushing blade function for the conveyed object and has a stirring function as a whole, and is considered so that the contact with the object to be dried is performed efficiently. I have. Further, as shown in FIG. 5, the protruding body may have various shapes, and a crushing blade is provided on a semi-circular convex side, or a crushing blade is provided on a V-shaped cross section, a Y-shaped cross section, or a U-shaped cross section. Can be considered. Considering from the viewpoint of easy transport of the object to be dried, the function of the stirring function, and prevention of the adhesion of the object to be dried, the one provided with the crushing blade on the convex side having a semicircular cross section is the most efficient.

Next, a conveyor as a carrying-in / out carrying device will be described with reference to FIGS. Conveyor (1
5) is a belt (21) driven by a driving device (not shown).
Is mounted on the machine frame (22), and the fixed leg (19) and the movable leg (20) provided on the machine frame (22) are configured to be movable at a constant height and movable. The fixed leg (19) is fixed to one end of the machine frame (22). The leg (19) is provided with a drive motor (23) via a chain (25) for the drive wheel (24) of the fixed leg (19). The conveyor (15) is connected to a shaft and controlled by a control device (not shown) to control the rotation of the motor (23).
Move so that it is inserted, and the rotating drum gradually (2)
It is discharged from the inside. The moving leg (20) moves the conveyor (15) into and out of the rotating drum (2).
Roller (27) that serves to support the conveyor (15) and supports a rail (28) arranged below the machine frame (22) other than the fixed legs (19) of the conveyor (15)
(27) is provided on the movable leg (20). Further, the lower part of the movable leg (20) is movable by a roller (26), and moves toward the fixed leg (19) when the conveyor (15) is inserted into the rotary drum (2), Conveyor (15) when discharged from rotating drum (2)
8 supports the load of the conveyor (15) as shown in FIG. It is not necessary to particularly control the movement of the movable leg (20), but the movable leg (20) is moved to the insertion end side of the conveyor by a spring (not shown) or the like, and is brought into contact with the fixed end plate (13) of the dryer. Alternatively, a magnet may be provided on the fixed end plate side of the movable leg (16) so that the end plate and the magnet adhere to each other to suppress the movement. Other moving legs (20)
The roller (26) may be operated by providing a stopper or the like, or the movement may be simply controlled by human power. As can be seen from the figure, the load on the conveyor (15) cannot be supported by the fixed legs (19) alone, and thus the moving legs (20) are used to support the conveyor in and out of the rotary drum (2). .

In the rotary drying apparatus of the present invention as described above, the door of the loading / unloading port (6) for the processed material is opened, and the moving conveyor (15) is moved to the conveyor rail (14) provided on the fixed end plate (13). ), The material to be dried is evenly inserted into the rotating drum (2) while moving the material to be dried from the back of the rotating drum (2) toward the fixed end plate (13) by the conveyor (15). After the conveyor, the conveyor (15) is removed, the lid is closed, and the motor (12) is attached to the rotating drum (2).
The rotational power is transmitted by driving the roller (8) through the rotary shaft (11). On the other hand, heated dry air is supplied from the air inlet (4) into the rotary drum (2), and the dried object is dried while being discharged from the air outlet (5). During the drying process, the rotating drum (2) rotates so that the crushing blade surface (17b) of the projection (17) fixedly disposed on the rotating drum (2) is positioned ahead of the rotating direction. It falls from the upper part of the rotary drum (2), comes into contact with the crushing blade (17b), is crushed and dried, and promotes the crushing of the material to be dried which tends to be clumpy.
When the drying is completed, the moving conveyor (15) is inserted again into the rotary drum (2), and the conveyor (15) is driven in the discharge direction. Is rotated in the reverse direction, the scooping concave side (17a) of the projection (17) becomes the tip of the rotation direction, and the object to be dried is received by the scooping concave part (17a). The material to be dried is carried out by the conveyor (15) as it falls on the conveyor (15) from (17a).

An example in which organic sludge generated in a wastewater treatment facility is dried using the apparatus of the present invention will be described below. The sludge discharged from a dewatering apparatus in a wastewater treatment facility has a water content of 80 to 80%.
After accumulating a certain amount of this, a commercially available fermentation bacterium was added and carried into the drying apparatus of the present invention, operated for about 48 hours, and the water content was reduced to 60%. Aureth C manufactured by Toyo Dime Co., Ltd. was used as the fermented rot bacteria. As a result, the muddy sludge became granular (powder) and was collected. The fermentation of sludge was also promoted and could be used as an organic fertilizer. In order to further increase the mineralization rate of nitrogen, natural fermentation was performed for 3 weeks in outdoor deposition. Component analysis was performed to confirm the fertilizer value of the sludge that had finished this fermentation. The component results were compiled as shown in the table below, and the suitability as a fertilizer could be confirmed.

Further, a vegetable (Taina) cultivation test was conducted to confirm the effect of fertilizer. The method is based on the growth comparison between compost and chemical fertilizer, and the germination rate is 89.5%.
There was no significant difference from chemical fertilizers. In addition, the cultivation results showed that there was no superior difference between the compost and the chemical fertilizer in the growing, and there was no damage such as the occurrence of pests. As a result, it was found that the sludge dried product had the same effect as the soil improvement effect of the chemical fertilizer. In addition, the apparatus of the present invention is a drying apparatus, which is suitable for drying a substance having a high moisture content, and which can be used in various industrial fields such as food drying and soil drying due to its high economic efficiency and functionality. is there. The present invention is characterized by the first, second and third aspects of the present invention, but a preferred embodiment is a rail that slides a transfer device for loading and unloading articles to be dried into and out of a loading and unloading port of a rotary drum. Is provided on the fixed end plate of the rotating drum, and the transfer device for loading and unloading is configured to be movable to a fixed height by a fixed leg at one end provided thereon and a movable leg movably provided. Is a rotary drying device configured to be driven and controlled by the control device. By using the rotary drying apparatus as described above, it is possible to achieve the object that the object to be dried can be smoothly carried into and out of the rotating drum. Further, the reinforcing member for supporting the rail in the rotating drum can be folded by a rotary drying device configured to be freely foldable, so that the object to be dried can be smoothly dried without any obstacle in the rotating drum. In the embodiment of the present invention, the conveyor has been described as the transfer device for loading and unloading, but this may be any transfer device such as a screw conveyor or a shooter.

[0015]

According to the present invention, there is provided a linear projection in the rotary drum on which the object to be dried is difficult to adhere. The projection functions as a device for agitating and crushing the object to be dried depending on the rotation direction of the rotary drum. It functions as a transport device for discharging the material to be dried onto the transport device for loading and unloading.
For this reason, the loading and unloading of the material to be dried can be automated, human operations can be simplified, and dangerous work inside the rotating drum can be eliminated.If a conveyor is used for loading and unloading, the material to be dried It is not necessary to adopt a configuration in which the rotating drum is inclined for discharging. This reduces the load on the rotating part of the device, and reduces the chance of failure.
The rotating drive of the rotating drum is located outside the rotating drum and does not contact the object to be dried, so it does not affect the product quality of the object to be dried. And stable operation. The loading / unloading device is independent of the drying device,
By controlling the speed of loading and unloading, it is possible to uniformly load the object to be dried into the rotating drum, and the automatic and automatic transfer of the object to be dried enables efficient and reliable loading operation.

[Brief description of the drawings]

FIG. 1 is a three-dimensional slope view of the entire apparatus of the present invention.

FIG. 2 is a plan view of a rotary drum part according to the first embodiment;

FIG. 3 is a cross-sectional view of the loading / unloading conveyor of the apparatus of the present invention when inserted.

FIG. 4 is a sectional view of a rotating drum part of the apparatus of the present invention.

FIG. 5 is an explanatory view of a projection of the device of the present invention.

FIG. 6 is a plan view showing an arrangement of projections of the device of the present invention in plan view of the lower half of FIG. 4;

FIG. 7 is a three-dimensional slope view of the conveyor.

FIG. 8 is an explanatory diagram showing a use state of a conveyor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Exterior 2 Rotary drum main body 3 Dry air generator 4 Drying air inlet 5 Drying air outlet 6 Conveyor loading / unloading port 7 Inspection port 8 Roller 9 Transmission gear 10 Rail 11 Rotary shaft 12 Motor 13 Fixed end plate 14 Rail 15 Conveyor 16 Reinforcement 17 Projecting body 19 Fixed leg 20 Moving leg 21 Belt 22 Machine frame 23 Motor 24 Roller 25 Chain 26 Roller 27 Roller 28 Rail

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoichi Shiiki, 249-Betsukai-cho, Betsukai-cho, Notsuke-gun, Hokkaido (72) Inventor Katsunori Otake 4-41 Higashi-kita, Sapporo City, Hokkaido (72) Inventor Seiichi Ota Hokkaido 4-14, Shinkawa, Shinkawa, Kita-ku, Sapporo-shi (72) Inventor Koji Well 5-3-10, Fukuko 8-chome, Higashi-ku, Sapporo-shi, Hokkaido No.501 Lilac apartment Fushiko 501 (72) Inventor Hiroyasu Shinjo 3-10-41, Takeoka, Kiyose-shi, Tokyo Hasumi Mansion 504 (56) Reference JP-A-4-222699 (JP, A) Japanese Utility Model Application Showa 60-23694 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) C02F 11 / 00-11/20 B09B 3/00 F26B 17/00

Claims (3)

(57) [Claims] 1. A fixed end plate comprising a rotary drum and a fixed end plate, wherein the fixed end plate is provided with an inlet / outlet for dry air, a carry-in / out port for a material to be dried, and a target to be dried / removed from the carry-in / out port. A rail is provided to slide the transfer device for loading and unloading objects, and a fixed projection is provided on the rotating drum for stirring and unloading a plurality of objects to be dried. One of the projections is a scooping recess and the other is dried. A rotary drying device, characterized in that it is a crushing blade for the product. 2. The fixed projection of the rotating drum is arranged on the inner peripheral wall of the rotating drum in parallel with the rotating direction of the rotating drum,
During the drying operation of the object to be dried, the rotating drum is rotated in the direction in which the crushing blade of the object to be dried of the fixed protrusion is the leading end of the rotating direction, and when the operation to carry out the object to be dried is the scooping recess of the fixed protrusion. 2. The rotating device according to claim 1, wherein the rotating member is rotated in a reverse direction so as to be a leading portion in a rotating direction, and the scooping concave portion of the fixed protrusion serves as a transport device for transporting the material to be dried onto the transport device for loading and unloading. Mold drying equipment. 3. The carrying device for carrying in / out is arranged separately from the drying device. When carrying the material to be dried, the carrying device gradually moves from the back of the rotating drum to the entrance side, and the material to be dried is averaged in the rotating drum. And a control mechanism for carrying the article into the apparatus.
3. The rotary drying device according to item 1.