JP2005112590A - Transfer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transfer device capable of preventing clogging, adhesion to an inner face of a casing, and solidification of an object to be transferred between the casing and a screw, improving conveyance efficiency of the object to be transferred greatly, and facilitating maintenance and management. <P>SOLUTION: This transfer device is provided with the casing 11 having a charging port 32 for the object to be transferred, the screw 3 provided in the casing 11 to convey the object, and a discharge port 4 for discharging the object conveyed by the screw 3. Three or more tips 14 are protrudedly provided per pitch of the screw 3 in an outer peripheral fringe part of the screw 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a transfer device for bagging compost, sludge, and incinerated ash, for example, in the field of sewage treatment.

This type of conventional transfer device has a screw feeder configuration. Specifically, the transfer device is arranged at a predetermined inclination angle, and has a casing having an inlet on the inclined lower end side, and is accommodated in the casing and rotated. A screw to be driven, and a discharge object that is supplied from the inclined upper end side of the casing and automatically packed into the bag, and a transfer object conveyed by the screw are conveyed to the inlet of the casing. It has a configuration including a transporting machine to be supplied and a hopper for supplying a transfer object to the transporting machine.
In such a conventional transfer device, if the casing of the screw feeder is set at an installation angle of 30 degrees or more, the transfer object is clogged between the screw and the casing (particularly near the inlet of the transfer object). The angle was set to 30 degrees or less.

  The above prior art is a technique generally known to those skilled in the art, and does not relate to a known literature invention.

  Since the conventional transfer device has a screw feeder configuration as described above, the object to be transferred is easily clogged between the casing of the screw feeder and the screw, and the object to be transferred sticks to the inner surface of the casing. Therefore, there is a problem that the transfer efficiency of the transfer object is poor. Moreover, since the installation angle of the casing cannot be 30 degrees or more, there is a problem that the installation area becomes large. Moreover, since the conventional transfer apparatus carries in a transfer target object from the side surface of the screw feeder and supplies it to the discharge port, there is a problem that the whole is large and requires a large installation place. In addition, since the hopper and input port for the object to be transferred are provided in the center of the transport machine, the object to be transferred such as compost, sludge, and incinerated ash falls directly on the screw. There was a problem that it became difficult to operate and maintenance became very troublesome.

  The present invention has been made to solve the above-described problems, and can prevent the occurrence of clogging of an object to be transferred between the casing and the screw, sticking to the inner surface of the casing, and clumping. An object of the present invention is to provide a transfer apparatus that greatly improves the transfer efficiency of a transfer object and is easy to maintain.

  Moreover, an object of this invention is to provide the transfer apparatus which can make the installation area of a screw and a casing small.

  Furthermore, an object of the present invention is to provide a transfer device that prevents clogging of a transfer object in the vicinity of an input port.

  The transfer device according to the present invention is a transfer device comprising a casing having an input port for introducing a transfer object on one side and a discharge port on the other side, and a screw for conveying the transfer object. The peripheral edge is provided with three or more chips for each pitch of the screw.

  In the transfer device according to the present invention, the angle formed by the casing and the installation surface is 30 degrees or more.

  In the transfer device according to the present invention, a carrier, a hopper, and a convex baffle plate are provided at the inlet of the casing.

  According to the present invention, since three or more chips are projected at a predetermined interval for each pitch of the screw on the outer peripheral edge of the screw, the compost or sludge that sticks to the casing inner surface and tries to harden. The object to be transferred, such as ash and incineration ash, can be scraped off by the tip at the part where the tip passes, and the other part of the object to be transferred collapses due to the scraping. In addition to being able to prevent solidification, there is an effect that the conveyance efficiency of the object to be transferred is greatly improved.

  According to the present invention, by providing the tip, even if the installation angle of the casing is 30 degrees or more, it can be operated smoothly without affecting the operation, and the installation angle of the casing can be 30 degrees or more. There is an effect that the installation area can be reduced. Furthermore, even if it operates continuously for a long time, the object to be transferred does not adhere to the casing, so that there is an effect that maintenance such as cleaning work can be easily performed.

  According to the present invention, because the casing is provided with a transporter, a hopper, and a convex baffle plate, the input material (transfer object) such as compost, sludge, or incinerated ash falls directly on the screw. Therefore, there is an effect that the input can be quantitatively supplied to the screw by the conveying machine. Further, since the introduction port is provided in the middle of the casing due to the presence of the baffle plate, there is an effect that it is not necessary to enlarge the casing in order to provide the baffle plate.

Embodiment 1 FIG.
FIG. 1 is a schematic view showing an entire transfer apparatus according to Embodiment 1 of the present invention. The transfer device 1 shown in FIG. 1 carries a transfer object (sludge, compost, incinerated ash, etc.) supplied from the hopper 2 to the transport device 33 from the center of the transport device 33 and discharges the bag by the screw 3. 4 has a screw feeder configuration, and the detailed configuration thereof will be described below.
That is, the transfer device 1 according to the second embodiment includes a cylindrical casing 11 disposed obliquely between the center of the transport machine 33 and the discharge port 4, and the casing as shown in FIGS. 11 is provided with a rotating shaft 12 and a screw 3 that are integrally driven and rotated, and has a loading port 32 (see FIG. 1) on the inclined descending end side of the casing 11. The first embodiment is characterized in that a plurality of tips 14 project from the outer peripheral edge of the screw 3. The same effect can be obtained not only by welding the tip 14 to the screw 3 but also by cutting the screw 3. Here, in FIG. 2, four tips 14 are provided to protrude for each pitch of the screw 3 (screw blades that rotate around the rotating shaft 12). However, the number of the tips 14 may be three or more. .

  The inclination angle θ of the casing 11 containing the screw 3 provided with such a tip 14 is set to 30 degrees or more. The inlet 32 on the inclined descending end side of the casing 11 and the transfer machine 33 are communicated with each other. In addition, even if it exists in the conveyance machine 33, it consists of a screw feeder.

Next, the operation will be described.
An object to be transferred such as sludge, compost, or incinerated ash is supplied from the hopper 2 to the transporter 33 and is carried into the casing 11 from the inlet 32 of the casing 11 of the transfer device 1 transported by the transporter 33. The The object to be transferred carried into the casing 11 is conveyed obliquely upward by the screw 3 and put into the discharge port 4. Here, as shown in FIG. 4, the transfer object 15 carried into the casing 11 is deposited and accumulated on the inner surface of the casing 11, and the transfer object 15 passes through the tip 14 by the rotation of the screw 13. While the portion is scraped off and the other portion collapses as shown by the arrow in FIG.

  According to the first embodiment described above, by providing three or more tips 14 on the outer peripheral edge of the screw 3, the transfer object 15 in the casing 11 through which the tips 14 pass is scraped off and scraped. As a result of the removal, the transfer object 15 in the portion through which the chip does not pass collapses, so that the transfer object 15 does not stick to the inner surface of the casing 11 and does not harden, and the transfer object 15 follows the inclination of the casing 11. Can be smoothly transported obliquely upward, and the transport efficiency is greatly improved. Moreover, even if the inclination angle θ of the casing 11 is set to 30 degrees or more, the transfer object 15 is not clogged in the casing 11, and the installation area of the transfer device 1 can be reduced. .

Embodiment 2. FIG.
FIG. 5 is a plan view showing a transfer device according to Embodiment 2 of the present invention, and FIG. 6 is a schematic cross-sectional view showing the main part of the baffle plate 34 in FIG. 5, and the same parts as in FIGS. A reference numeral is attached and a duplicate description is omitted.
In the second embodiment, in the transfer machine 33 having a screw feeder configuration provided in the transfer device 1 according to the first embodiment, a charging port 32 through which a transfer object is supplied from the hopper 2 is provided at the center of the hopper 2. A convex baffle plate 34 is disposed above the transfer machine 33 corresponding to the insertion port 32. The baffle plate 34 according to the second embodiment is formed in a convex shape having a triangular cross section, and the transfer object supplied from the hopper 2 is smoothly distributed and supplied to the transport device 33 along the both side slopes of the baffle plate 34. It is what I did.

  According to the second embodiment, the object to be transferred supplied from the hopper 2 to the central portion of the transport machine 33 is buffered by the convex baffle plate 34 and does not fall directly on the screw 3. There is an effect that the transfer object from the hopper 2 can be quantitatively and smoothly supplied by the transfer device 33.

Embodiment 3 FIG.
FIG. 7 is a plan view showing a transfer device according to Embodiment 3 of the present invention, and FIG. 8 is a schematic cross-sectional view showing the main part of the baffle plate 34 in FIG. 7. The same parts as in FIGS. A reference numeral is attached and a duplicate description is omitted.
In the third embodiment, as in the case of the second embodiment, the baffle plate 34 having a convex shape is arranged in the casing 31 of the transporter 3. However, the baffle plate 34 according to the third embodiment is arranged. Is a steeply sloped upper slope part 34a having a triangular shape, and a gently sloped lower slope part extending from the upper slope part 34a to the lower end side and forming a plane triangle shape in a direction perpendicular to the axial direction of the screw 33 34b is formed in a convex shape.

  According to the baffle plate 34 of the third embodiment as described above, the object to be transferred put into the transporter 33 from the hopper 2 is moved by the lower slope portion 34b of the baffle plate 34, particularly in the above-described embodiment. As compared with the case of No. 2, there is an effect that it can be further buffered and introduced into the transport device 33 and quantitatively supplied from the transport device 33 to the screw 3.

Example 1.
Example 1 using the transfer device 1 according to the first embodiment will be described.
In the first embodiment, four chips 14 are provided for each pitch (130 mm) of the screw 3, the diameter of the casing 11 is 150 mm, the diameter of the screw shaft (rotating shaft 12) is 60.5 mm, and the casing 11 is inclined. The transfer device 1 was operated by setting the angle θ to 45 degrees, the gap between the inner surface of the casing 11 and the outer periphery of the screw 3 to 5 mm, and the distance between the casing 11 and the tip 14 to 1.5 mm. As a result, as shown in FIG. 4, compost (water content 38%) that is the transfer object 15 through which the chip 14 passes in the casing 11 is scraped off, and the chip 14 does not pass through the scraping. The compost of other parts collapsed. As a result, 1.628 t / h (maximum throughput) of compost stuck to the inner surface of the casing 11 and could be smoothly transferred without hardening. Moreover, the installation area could be reduced by setting the angle of the casing 11 to 45 degrees. Although the number of compost bags was 500 (14 kg / 1 bag), compost was not adhered to the inner surface of the casing 11 and the current value did not increase. Since there was no compost sticking, maintenance management such as cleaning work could be performed easily. In addition, even when three chips 14 were provided for each pitch of the screw 3, good operation could be performed similarly.

  In the first embodiment, the tip 14 is attached to the screw 13, but the same effect can be obtained by forming the outer peripheral edge of the screw 3 integrally in a gear shape and using the gear-like convex portion as the tip 14. . Further, in the first embodiment, when the thickness of the tip 14 is the same as that of the screw 3, it has been found that it is not necessary to be the same as that of the screw 3 as long as the strength of the material to be transferred can be displayed. .

Example 2
When the operation was performed in the same manner as in Example 1 except that the number of chips 14 per pitch of the screw 13 was changed to 3, the same effects as those in Example 1 were obtained.

Example 3
When the operation was performed in the same manner as in Example 1 except that the inclination angle θ of the casing 11 was set to 50 degrees, the same effects were obtained.

Example 4
In the fourth embodiment, a transfer device 33 is communicated with the input port 32 of the casing 11 of the transfer device 1, and a baffle plate 34 corresponding to the input port 32 is disposed at the center of the transfer device 33. When the transfer device 1 including the hopper 2 for supplying the transfer object is operated, the compost from the hopper 2 does not fall directly on the screw 3 of the transport device 33, and the compost is supplied quantitatively and smoothly to the screw 3. We were able to. Here, when it is carried out from the side by the transport device 33 and supplied into the casing 11 of the transfer device 1 like a conventional quantitative feeder, a large area is required for installation, but the transport device provided in the transfer device 1 according to the present invention. Since 33 is provided in the center of the insertion port 32, the area can be saved.

  In the above embodiment, the convex shape of the baffle plate 34 is a hemispherical shape, a conical shape, a quadrangular pyramid shape, a roof shape, a head shape, or the like so that the object to be transferred from the hopper 3 does not fall directly into the screw portion. Any shape may be used, and the same effect can be obtained in any case.

It is the schematic which shows the whole transfer apparatus by Embodiment 1 of this invention. It is sectional drawing which looked at the casing and screw of FIG. 1 from the axial direction. FIG. 3 is a cross-sectional view of FIG. 2. It is operation | movement explanatory drawing of the transfer apparatus by Embodiment 1 of this invention. It is a top view which shows the transfer apparatus by Embodiment 2 of this invention. It is a schematic sectional drawing which shows the principal part of the baffle plate 34 in FIG. It is a top view which shows the transfer apparatus by Embodiment 3 of this invention. It is a schematic sectional drawing which shows the principal part of the baffle plate 34 in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transfer device 2 Hopper 3 Screw 4 Discharge port 11 Casing 12 Rotating shaft (screw shaft)
13a Outer peripheral edge part 14 Chip 15 Transfer object 32 Input port 33 Conveying machine 34 Baffle plate 34a Upper slope part 34b Lower slope part

Claims (3)

  In a transfer device comprising a casing having an input port for supplying a transfer object on one side and a discharge port on the other side, and a screw for conveying the transfer object, one pitch of the screw is provided on an outer peripheral edge of the screw. 3. A transfer apparatus comprising three or more chips each.   The transfer apparatus according to claim 1, wherein an angle formed by the casing and the installation surface is 30 degrees or more.   The transfer device according to claim 1, wherein the charging port includes a transporter, a hopper, and a baffle having a convex shape.

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