JP2017149517A - Conveyed article supply structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyed article supply structure in which an inside surface of a lower end portion of a guide chute is hardly worn.SOLUTION: There is provided a conveyed article supply structure 1A which has conveyance/supply equipment 2 that conveys a conveyed article 14 formed of powder, granule or a combination of them, a conveyor 3 that is arranged on a vertically lower side of the conveyance supply equipment 2 and receives and conveys the conveyed article 14 supplied from conveyance/supply equipment 4, and a guide chute 4 arranged so as to connect the conveyance/supply equipment 2 and the conveyor 3, where both side edges 3a and 3b of the conveyor 3 are bent or curved toward a central side of the conveyor 3, a surface arranged on both side edges 3a and 3b of the conveyor in a lower end 4a of the guide chute 4 includes a bent portion 4b of which a cross section in a particular direction forms a truncated chevron shape, and a cavity between the bent portion 4b and a mounting surface of the conveyor 3 has a chute rubber plate 5 arranged so as to block the cavity.SELECTED DRAWING: Figure 1

Description

  The present invention is provided, for example, at a transfer location between conveyors when transporting a conveyed product via a plurality of conveyors, and is arranged on a vertically lower side from a conveyance supply facility (for example, a conveyor) arranged on the vertically upper side. The present invention relates to a conveyed product supply structure that guides and supplies a conveyed product to a conveyor.

In general, a large amount of coal is transferred by a conveyor in a thermal power plant or the like.
In this case, at the time of transfer by a conveyor, there is a problem that wear is particularly likely to occur at a portion in contact with coal, and maintenance and inspection and maintenance of the transport facility are troublesome and costly.
The following are disclosed as prior art documents for coping with such problems.

In patent document 1, it is the name of the "conveyance fall prevention support device of a belt conveyor connection part". An invention relating to the structure of a support device for supporting a belt of a belt conveyor so that a conveyed product does not fall outside the belt is disclosed.
The invention disclosed in Patent Document 1 is (a) a transfer portion where a conveyed product from an upstream conveyor transfers to a downstream conveyor, and a guide chute is provided for guiding the conveyed product from the upstream conveyor to the downstream conveyor. In order to prevent a gap between the skirt portion at the lower end of the guide chute and the belt of the downstream conveyor and prevent the conveyed product from dropping, in a support device installed immediately below the belt of the downstream conveyor, (b) A carrier roller disposed in the center of the belt in the width direction, a first sliding support plate having a wear-resistant material for supporting the vicinity of a bent portion where both ends of the belt bend upward at a predetermined angle, and a bent portion And a second sliding support plate having a smoothing material for supporting the belt width direction outer side.
According to the invention disclosed in Patent Document 1 having the above configuration, by supporting the center in the belt width direction by the carrier roller, the belt has strong rigidity and wear resistance against a direct hit of a falling transported object, and a bent portion is provided. By supporting by the first sliding support plate having a wear-resistant material such as a ceramic chip, durability against local wear due to sliding with the bent portion can be improved.

Japanese Patent Laid-Open No. 8-258942

However, in the invention disclosed in Patent Document 1, since the lower end of the guide chute 2 is folded inside as shown in FIG. 2 of Patent Document 1, the conveyed product 4 passes through the guide chute 2. At this time, it is expected that the transported object 4 made of powder or lump such as iron ore or coal comes into contact with the lower end of the guide chute 2 and this part is expected to be severely worn.
If wear occurs at the lower end of the guide chute 2, it is necessary to perform maintenance work such as welding and attaching a new member after cutting off the part where the wear has occurred. There was a problem that labor and cost for maintenance of the chute 2 were required.

  Further, even when the lower end of the guide chute is simply hung vertically downward without folding the lower end of the guide chute as in the case of Patent Document 1, the conveyed product contacts the inner surface of the guide chute (connection chute). Since this is unavoidable, wear also occurs inside the lower end of the guide chute. Therefore, also in this case, it is necessary to perform repairs by fusing the lower end portion of the guide chute and welding a new member.

The present invention has been made in response to such a conventional situation, and an object of the present invention is to reduce wear of the inner surface of the lower end portion of the guide chute and to provide a chute rubber plate to the lower end portion of the guide chute. It is an object of the present invention to provide a transported object supply structure that can easily perform detachment work.
In addition, an object of the present invention is to provide a transported article supply structure that can easily perform repair work when wear occurs at the lower end of the guide chute.

In order to solve the above-mentioned problem, the transported object supply structure according to the first aspect of the present invention is arranged on a transport supply facility for transporting a transported object made of powder, granular material, or a combination thereof, and on a vertically lower side of the transport supply facility. A conveyor for receiving and transporting a conveyed product supplied from the conveyance supply facility, and a guide chute arranged so as to connect the conveyance supply facility and the conveyor. The surface that bends or curves toward the lower end of the guide chute and is arranged on both side edges of the conveyor includes a bent portion whose vertical cross-section has a C-shape, and the bent portion and the placement surface of the conveyor The air gap is characterized by including a chute rubber plate disposed so as to close the air gap.
In the first invention having the above-described configuration, the transport supply facility has an effect of transporting the transported object to the guide chute. In addition, the conveyor has an effect of receiving and transporting a transported object that is transported and / or supplied by a transport supply facility. Further, the guide chute has an effect of supplying the conveyed product conveyed and / or supplied by the conveyance supply facility onto the placement surface of the conveyor.
Further, the both side edges of the conveyor are bent or curved toward the center side of the conveyor, so that when the conveyed product is supplied to the conveyor mounting surface, or when the conveyed product is conveyed, It has the effect of preventing the conveyed product from spilling down.
In addition, the surface arranged on the both side edges of the conveyor at the lower end of the guide chute has a bent portion whose vertical cross section forms a C-shape, so that the object to be moved in the guide chute is guided by the guide chute It has the effect | action of making it difficult to contact the inner surface of a guide chute | shoot at the lower end part of this. In addition, it has the effect | action that the conveyed product which reached the mounting surface of a conveyor prevents contacting with the inner surface of the lower end part of a guide chute.
Further, the chute rubber plate has an effect of blocking the gap between the lower end portion of the guide chute and the placing surface of the conveyor and preventing the conveyed product from spilling out from this portion.

The transported object supply structure according to the second invention is characterized in that, in the first invention described above, the lower end of the chute rubber plate is in contact with the placement surface of the conveyor.
In addition to the same operation as that of the first invention, the second invention having the above-described configuration is such that the lower end of the chute rubber plate is in contact with the placement surface of the conveyor, so that the gap between the guide chute and the placement surface of the conveyor is reduced. , It has the effect | action that prevents the dust of a conveyed product from scattering around.

The conveyed product supply structure according to a third aspect of the present invention is characterized in that, in the first or second aspect described above, the chute rubber plate is placed on the bent portion.
In addition to the same action as the first or second invention, the third invention of the above configuration is such that the chute rubber plate is placed on the bent portion of the guide chute, so that the chute rubber is caused by the bent portion of the guide chute. It has the effect of always supporting the load of the plate. In this case, when the chute rubber plate is exchanged, the operator does not need to support the chute rubber plate by hand, so the work load is greatly reduced.

The conveyed product supply structure according to a fourth aspect of the present invention has a fixing structure for pressing and fixing the chute rubber plate against the upper surface of the bent part in the third invention described above. A plurality of protrusions projecting on the upper surface, a long pressing portion arranged in parallel with the extending direction of the chute rubber plate, and a protrusion when the pressing portion is arranged on the chute rubber plate. When the latching part is secured to the protrusions, the latching part is prevented from coming off and the pressing force of the pressing part against the chute rubber plate And a wedge for adjusting.
In addition to the same operation as that of the third invention, the fixing structure has an operation of detachably fixing the chute rubber plate on the bent portion of the guide chute.
More specifically, in the fixing structure, the pressing portion is disposed on the upper surface of the chute rubber plate and has an action of pressing the chute rubber plate against the upper surface of the bent portion of the guide chute. In addition, the latching portion is integrally fixed at a plurality of locations of the pressing portion so as to enable the handling of the pressing portion and to transmit a pressing force when the chute rubber plate is pressed by the pressing portion. .
Furthermore, the protrusion part protrudingly provided on the bent part of the guide chute has an effect of engaging the engaging part.
The wedge is inserted into the wedge insertion hole formed in the protrusion after the latching portion is latched, thereby preventing the latching portion from coming off and preventing the latching portion from being bent by the guide chute. It has the effect | action of pressing to an upper surface side. Thereby, the pressing force which acts on the latching portion is transmitted to the pressing portion, and the chute rubber plate is always pressed against the upper surface side of the bent portion by the pressing portion.

The conveyed product supply structure according to a fifth aspect of the present invention is characterized in that, in any one of the first to fourth aspects described above, the bent portion is detachably fixed to the lower end portion of the guide chute. is there.
In the fifth aspect of the present invention, in addition to the same effects as those of the first to fourth aspects of the invention, the bent portion is detachably fixed to the lower end portion of the guide chute. When wear occurs on the inner side (the inner side of the guide chute), the bent portion of the guide chute can be removed without fusing. Furthermore, after removing the bent portion where the wear has occurred, the new bent portion can be attached to the lower end portion of the chute without welding.

According to the first invention as described above, the risk that the inner surface of the lower end portion of the guide chute is scraped off in contact with the conveyed product can be greatly reduced. As a result, wear can be made difficult to occur inside the lower end portion of the guide chute.
Thereby, the service life of a guide chute can be lengthened. Further, according to the first invention, since it is not necessary to frequently perform the repair work on the guide chute, the labor and cost required for the guide chute maintenance can be greatly reduced.

  According to the second invention, in addition to the same effect as the first invention, there is no gap between the lower end portion of the guide chute and the placement surface of the conveyor. The risk of dust scattering around can be greatly reduced. Therefore, according to the second invention, it is possible to provide a clean transported object supply structure.

  According to the third invention, in addition to the same effects as those of the first or second invention, it is not necessary for the operator to support the chute rubber plate when replacing the chute rubber plate. The load can be greatly reduced. Therefore, according to the third aspect, it is possible to reduce the load of maintenance work on the guide chute.

  According to the fourth invention, in addition to the same effect as the third invention, the chute rubber plate can be detachably fixed on the bent portion of the guide chute while having a simple structure. Have. Therefore, according to the fourth aspect of the invention, it is possible to further reduce the load of maintenance work on the guide chute.

According to the fifth aspect of the invention, in addition to the same effects as the first to fourth aspects of the invention, when the inner side of the bent portion of the guide chute is worn and repair work is required, The removal work and the installation work of a new bent portion can be performed regardless of the fusing and welding work. Therefore, according to the fifth aspect of the present invention, the labor and cost related to the maintenance of the guide chute can be greatly reduced.
Furthermore, the service life of the main body portion of the guide chute can be extended by making the bent portion of the guide chute easily replaceable. As a result, it is possible to reduce the work and cost related to the maintenance of the guide chute.

It is a conceptual diagram of the conveyed product supply structure which concerns on Example 1 of this invention. It is the elements on larger scale of the conveyed product supply structure which concerns on Example 1 of this invention. It is the conceptual diagram shown in the state which decomposed | disassembled the fixation structure of a chute | shoot rubber | gum board in the conveyed product supply structure which concerns on Example 1 of this invention. It is a conceptual diagram of the fixation structure of the chute rubber plate in the conveyed product supply structure which concerns on Example 1 of this invention. It is the elements on larger scale of the conveyed product supply structure which concerns on the modification of Example 1 of this invention. It is the elements on larger scale of the conveyed product supply structure which concerns on Example 2 of this invention.

  The conveyed product supply structure according to the embodiment of the present invention will be described in detail with reference to Examples 1 to 3.

The conveyed product supply structure 1A according to the first embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a conceptual diagram of a conveyed product supply structure according to Embodiment 1 of the present invention. Moreover, FIG. 2 is the elements on larger scale of the conveyed product supply structure which concerns on Example 1 of this invention.
As shown in FIGS. 1 and 2, the conveyed product supply structure 1 </ b> A according to the first embodiment conveys a conveyed product 14 made of powder, granular material, or a combination thereof, for example, conveyed by the first conveyor 2 or the like. A supply facility, a second conveyor 3 that is arranged vertically below the conveyance supply facility and receives and conveys a conveyed product 14 supplied from the conveyance supply facility, and a conveyance supply facility and a second conveyor 3 The guide chute 4 is arranged so as to be connected, and both side edges 3a, 3a of the second conveyor 3 are bent or curved toward the center side of the second conveyor 3, and the lower end 4a of the guide chute 4 is provided. The surface disposed on the both side edges 3a, 3a side of the second conveyor 3 includes a bent portion 4b whose vertical cross section forms a C shape, and the mounting surface of the bent portion 4b and the second conveyor 3 The gap with 3b closes this gap And it is characterized in that it comprises a chute rubber plate 5 which is arranged in earthenware pots.

In addition, in the conveyed product supply structure 1A of Example 1, the case where the conveyance supply facility is the first conveyor 2 is described as an example, but the conveyance supply facility may be a hopper other than the conveyor, for example. . That is, as long as it is equipment that can transport and / or supply the conveyed product 14 to the guide chute 4, the form of the transport supply equipment does not have to be specified.
Further, when the transport supply facility is, for example, the first conveyor 2, as shown in FIG. 1, the placement surface is changed by the rotation of the roller 2a disposed at the start or end of the transport path or the transport path. You may comprise so that the to-be-conveyed object 14 consisting of powder, a granular material, or these combinations may convey the band body to comprise.
Furthermore, the second conveyor 3 is also basically operated by the same configuration as the first conveyor 2, but the vertical cross-sectional shape in the traveling direction of the band body having the mounting surface 3b is concave. It is bent or curved. In the second conveyor 3, a roller 3c is disposed on the back surface of the band body so as to maintain the cross-sectional shape of the band body.

In the conveyed product supply structure 1A according to the first embodiment as described above, the vertical cross section of the lower end portion 4a of the guide chute 4 has a vertical cross section on the surface disposed on the both side edges 3a, 3a side of the second conveyor 3. By providing the bent portion 4b having a letter shape, it is possible to make it difficult for the conveyed product 14 to contact the inner surface of the lower end portion 4a of the guide chute 4 when the conveyed product 14 descends in the guide chute 4. Thereby, at the time of use of the guide chute 4, it can make it hard to wear the inner surface of the lower end part 4a.
Therefore, according to the conveyed product supply structure 1A according to the first embodiment, the service life of the guide chute 4 can be extended.

In general, in a power generation facility such as a thermal power plant, a transported material 14 such as coal is transported using, for example, a first conveyor 2 or a second conveyor 3 as shown in FIG.
And when the conveyed product 14 is a granular material in particular or contains a granular material, when moving inside the guide chute 4, since it falls, contacting the inner surface of the guide chute 4, especially the guide chute 4 Abrasion was likely to occur on the inner surface of the lower end 4a.
When wear occurs on the inner surface of the guide chute 4, it is necessary to melt and cut the worn portion, and then attach a member that supplements the cut portion by welding. In this case, when the second conveyor 3 is disposed overhead, the guide chute 4 must be melted and welded on an unstable scaffold, which is a heavy burden on the operator.
Therefore, according to the invention according to the first embodiment as described above, since the wear of the lower end portion 4a of the guide chute 4 can be suitably suppressed, labor and cost required for repairing the guide chute 4 are greatly reduced. can do.

Furthermore, in the conveyed product supply structure 1A according to the first embodiment, the lower end 5a of the chute rubber plate 5 may be brought into contact with the placement surface 3b of the second conveyor 3, as shown in FIGS.
In this case, dust generated when the conveyed product 14 passes through the guide chute 4 can be prevented from diffusing to the outside from between the chute rubber plate 5 and the mounting surface 3b of the second conveyor 3. . Therefore, according to the conveyed product supply structure 1A according to the first embodiment, a clean conveyed product supply structure can be provided.

In the conveyed product supply structure 1A according to the first embodiment, the chute rubber plate 5 may be placed on the upper surface of the bent portion 4b of the guide chute 4 as shown in FIGS.
Usually, as the chute rubber plate 5, an elongated flat plate-like long material is used. The chute rubber plate 5 is heavy. Further, when the guide chute 4 does not include the bent portion 4b, it is necessary for the operator to support the chute rubber plate 5 by hand until the exchanging operation is completed when exchanging the chute rubber plate 5, particularly the second conveyor. When 3 is placed on the head, this work is performed on an unstable scaffold, so that the physical burden on the worker is extremely large.
Therefore, according to the conveyed product supply structure 1A according to the first embodiment, the chute rubber plate 5 is placed on the upper surface of the bent portion 4b of the guide chute 4 when the chute rubber plate 5 is replaced. Therefore, the physical burden on the worker during the work can be greatly reduced.

Furthermore, in the conveyed product supply structure 1A according to the first embodiment, the chute rubber plate 5 may be detachably fixed to the upper surface of the bent portion 4b of the guide chute 4 by a fixing structure 6 as described below. This point will be described in detail with reference to FIGS.
FIG. 3 is a conceptual diagram showing the chute rubber plate fixing structure in an exploded state in the conveyed product supply structure according to Embodiment 1 of the present invention. FIG. 4 is a conceptual diagram of a chute rubber plate fixing structure in the conveyed product supply structure according to Embodiment 1 of the present invention. The same parts as those described in FIGS. 1 and 2 are denoted by the same reference numerals, and description of the configuration is omitted.
As shown in FIGS. 2 and 3, the fixing structure 6 of the conveyed product supply structure 1 </ b> A according to the first embodiment includes a plurality of protrusions 7 protruding on the upper surface of the bent portion 4 b of the guide chute 4 and the above-described chute. A long pressing portion 8 disposed in parallel with the extending direction of the rubber plate 5 and a position that coincides with a position where the projection portion 7 is disposed when the pressing portion 8 is disposed on the chute rubber plate 5. When the latching portion 9 is latched to the plurality of latching portions 9 and the projections 7, the latching portion 9 is prevented from coming off and the pressing force of the pressing portion 8 against the chute rubber plate 5 is adjusted. The wedge 10 may be used.

As shown in FIGS. 2 and 3, the pressing portion 8 in the fixing structure 6 uses a long steel material having an L-shaped cross section, but can press the chute rubber plate 5 evenly in the longitudinal direction. If possible, it is not necessary to specify the configuration shown in FIGS.
Furthermore, the latching part 9 is a rectangular metal plate (steel plate) bent into an L-shaped cross section. In addition, the hook portion 9 is formed on the pressing portion 8 when the chute rubber plate 5 is placed on the upper surface of the bent portion 4b of the guide chute 4 and the pressing portion 8 is disposed thereon. It is fixed at the position that coincides with the position where is placed. In addition, a projection portion insertion hole 9a for inserting the projection portion 7 is formed on the surface of the latch portion 9 where the pressing portion 8 is fixed, and the projection portion 7 is inserted into the projection portion insertion hole 9a. By inserting, the position of the pressing portion 8 on the bent portion 4b of the guide chute 4 is indirectly specified.
And the latching | locking part 9 bends a metal flat plate material in L shape, and is equipped with the hook-shaped part (part contact | abutted on the upper surface of the bending part 4b) in the edge part, and a latching part When the protruding portion 7 is inserted into the protruding portion insertion hole 9a, the end surface of the hook-shaped portion comes into contact with the upper surface of the bent portion 4b, so that the pressing portion 8 fixed to the latching portion 9 is lifted. Can be prevented.

Further, the protrusion 7 in the fixing structure 6 of the conveyed product supply structure 1A according to the first embodiment includes a wedge insertion hole 7a for inserting the wedge 10 in the vicinity of the top.
In the fixing structure 6, when the protrusion 7 is inserted into the protrusion insertion hole 9 a of the hook 9, the wedge insertion hole 7 a formed in the protrusion 7 by the thick part of the hook 9. A portion is hidden (see FIG. 2), and the height H (see FIG. 2) of the pressing portion 8 from the bent inner surface of the latching portion 9 is set to the bending portion 4b of the guide chute 4. By setting it to be smaller than the rising height P (see FIG. 2) of the latching portion 9 on the upper surface, when the wedge 10 is inserted into the wedge insertion hole 7a of the protrusion 7, the side of the wedge 10 is set. A force can be applied to press the latching portion 9 against the upper surface side of the bent portion 4b by the end face.
At this time, since the pressing portion 8 is fixed to the latching portion 9, the pressing portion 8 placed on the chute rubber plate 5 is pushed in the thickness direction of the chute rubber plate 5 with this operation. Thus, the chute rubber plate 5 is fixed on the bent portion 4b.
FIG. 4 shows a state in which the chute rubber plate 5 is fixed on the upper surface of the bent portion 4 b of the guide chute 4 by the fixing structure 6.

When removing the chute rubber plate 5 from the bent portion 4b of the guide chute 4, the above procedure may be reversed.
That is, the pressing portion 8 on the chute rubber plate 5 can be removed by removing the wedge 10 from the wedge insertion hole 7 a of the protruding portion 7 and removing the latching portion 9 from the protruding portion 7. As a result, the chute rubber plate 5 can be removed from the bent portion 4 b of the guide chute 4.

When the fixing structure 6 as shown in FIGS. 2 to 4 is provided, the chute rubber plate 5 can be firmly fixed on the bent portion 4b of the guide chute 4 with a simple and small number of parts. For this reason, the individual parts constituting the fixing structure 6 are not easily damaged, and even if the individual parts constituting the fixing structure 6 are damaged, the structure of the parts is simple and the replacement is easy. Therefore, according to the conveyed product supply structure 1A according to the first embodiment including the fixed structure 6, it is possible to provide a conveyed product supply structure that is easy to maintain.
Furthermore, when the fixing structure 6 as shown in FIGS. 2 to 4 is provided, the chute rubber plate 5 can be detachably fixed on the bent portion 4 b of the guide chute 4. In addition, when the fixing structure 6 as shown in FIGS. 2 to 4 is provided, the fixing or removing operation can be performed while the chute rubber plate 5 is placed on the upper surface of the bent portion 4 b of the guide chute 4. Therefore, according to the conveyed product supply structure 1A according to the first embodiment having the fixing structure 6 as shown in FIGS. 2 to 4, the physical burden on the operator is greatly reduced when the chute rubber plate 5 is replaced. can do. Therefore, according to the conveyed product supply structure 1A according to the first embodiment, it is possible to provide a conveyed product supply structure that facilitates maintenance work.

Next, a conveyed product supply structure according to a modification of the first embodiment will be described in detail with reference to FIG.
FIG. 5 is a partially enlarged view of a conveyed product supply structure according to a modification of the first embodiment of the present invention. The same parts as those described in FIGS. 1 to 4 are denoted by the same reference numerals, and description of the configuration is omitted.
In FIGS. 2 to 4, the case where the open end portion of the long material having the L-shaped cross section is fixed to the bent inner surface of the latching portion 9 constituting the fixing structure 6 will be described as an example. However, as shown in FIG. 5, a fixing structure 6 a formed by fixing corner portions of a long material having an L-shaped cross section to the bent inner surface of the latching portion 9 may be used.
And according to the conveyed product supply structure 1B which concerns on the modification provided with the fixed structure 6a, the effect similar to 1 A of conveyed product supply structures which concern on Example 1 provided with the fixed structure 6 can be exhibited.

Finally, the conveyed product supply structure according to the second embodiment will be described in detail with reference to FIG.
FIG. 6 is a partially enlarged view of the conveyed product supply structure according to Embodiment 2 of the present invention. The same parts as those described in FIGS. 1 to 5 are denoted by the same reference numerals, and description of the configuration is omitted.
1 to 5, an example in which the bent portion 4b of the guide chute 4 is provided integrally with the guide chute 4 has been described as an example. However, as shown in FIG. The bent portion 4b may be detachably provided at the lower end portion 4a of the guide chute 4.
In the present invention, by providing the bent portion 4b at the lower end portion 4a of the guide chute 4, the friction with the conveyed product 14 in this portion can be reduced, but wear on the inner surface of the bent portion 4b of the guide chute 4 is inevitable. Therefore, even when the conveyed product supply structures 1A and 1B according to the present invention are used, if wear occurs on the inner side surface of the lower end portion 4a of the guide chute 4, it is necessary to perform repair work by fusing and welding.
On the other hand, like the conveyed product supply structure 1C according to the second embodiment, the guide chute 4 is detachably fixed to the lower end 4a of the guide chute 4 so as to be detachable. When wear occurs on the inner side surface of the bent portion 4b, the repair work can be completed simply by replacing the bent portion 4b provided separately. In addition, in this case, as in the case of the conveyed product supply structures 1A and 1B according to the present invention, the bending portion 4b in which wear has occurred is melted, and thereafter, a work for welding a part that becomes a new bending portion 4b is performed. There is no need.
Therefore, according to the conveyed product supply structure 1C according to the second embodiment, when the inner surface of the bent portion 4b of the guide chute 4 is worn, the labor and cost related to the repair work can be greatly reduced. .

In addition, in the conveyed product supply structure 1C according to the second embodiment, a structure as described below may be adopted as an attachment structure of the bent portion 4b formed separately.
For example, as shown in FIG. 6, in a bent portion 4 b provided separately, a connection portion 15 is integrally extended at an end portion arranged on the guide chute 4 side, and the outer surface of the guide chute 4 is further extended. Further, the connecting arm portions 11 and 12 project from the outer surface of the bent portion 4b, and the connecting arm portions 11 and 12 can be detachably attached to the outer side of the guide chute 4 by a fixing tool such as a bolt 13, for example. You may connect.
In this case, since the structure for fixing the bent portion 4b provided separately is disposed outside the guide chute 4, it is necessary to perform work inside the guide chute 4 when the bent portion 4b provided separately is attached / detached. Absent.
Therefore, according to the conveyed product supply structure 1C having the attachment structure of the bent portion 4b as shown in FIG. 6, the replacement work of the bent portion 4b of the guide chute 4 can be performed efficiently, safely and easily. .

Moreover, the attachment structure of the bending part 4b as shown in FIG. 6 can also be employ | adopted for the conveyed product supply structure 1B which concerns on the modification shown in FIG. In this case, the effect of the conveyed product supply structure 1B according to the modification and the effect of the conveyed product supply structure 1C according to the third embodiment can be exhibited simultaneously.
Furthermore, in the present embodiment, as the pressing portion 8 in the fixing structure 6 or the fixing structure 6a, a case where a long material having an L-shaped cross section (for example, metal) is used is described as an example. The shape of the pressing portion 8 need not be specified in the form disclosed in FIGS. That is, a hollow tubular body (arbitrary cross-sectional shape) or a solid rod-shaped body (arbitrary cross-sectional shape) can be used as the pressing portion 8 without hindrance.

  As described above, according to the present invention, the conveyance object supply structure in which the inner side surface of the lower end portion of the guide chute is less likely to be worn and the repair work of the portion is easy even when the inner side surface of the lower end portion of the guide chute is worn. This is a transported object supply structure that can be carried out at low cost, and can be used in the technical field related to transport supply facilities.

  DESCRIPTION OF SYMBOLS 1A-1C ... Conveyance supply structure 2 ... 1st conveyor 2a ... Roller 3 ... 2nd conveyor 3a ... Side edge 3b ... Loading surface 3c ... Roller 4 ... Guide chute 4a ... Lower end part 4b ... Bending part 5 ... Chute Rubber plate 5a ... Lower end 6, 6a ... Fixing structure 7 ... Projection 7a ... Wedge insertion hole 8 ... Pressing part 9 ... Hook 9a ... Projection insertion hole 10 ... Wedge 11 ... Connection arm part 12 ... Connection arm part 13 ... Bolt 14 ... Conveyed object 15 ... Connection part

Claims (5)

A transport and supply facility for transporting a transported material composed of powder, granular material, or a combination thereof, and the transport and supply facility that is arranged vertically below the transport and supply facility and receives and transports the transported material supplied from the transport and supply facility. A conveyor, and a guide chute arranged so as to connect the conveyor supply facility and the conveyor,
Both side edges of the conveyor are bent or curved toward the center side of the conveyor,
The surface disposed on both side edges of the conveyor at the lower end of the guide chute includes a bent portion whose vertical cross section forms a C shape,
A gap between the bent portion and the placing surface of the conveyor includes a chute rubber plate disposed so as to close the gap.   The transported object supply structure according to claim 1, wherein a lower end of the chute rubber plate is in contact with a placement surface of the conveyor.   The transported article supply structure according to claim 1, wherein the chute rubber plate is placed on the bent portion. A fixing structure for pressing and fixing the chute rubber plate against the upper surface of the bent portion;
The fixing structure includes a plurality of protrusions protruding on the upper surface of the bent portion,
An elongated pressing portion arranged in parallel with the extending direction of the chute rubber plate;
A plurality of latching portions fixed at positions corresponding to the positions at which the protrusions are disposed when the pressing portion is disposed on the chute rubber plate;
And a wedge for preventing the latching portion from coming off and adjusting a pressing force of the pressing portion against the chute rubber plate when the latching portion is latched on the protrusion. The conveyed product supply structure according to claim 3.   The transported object supply structure according to any one of claims 1 to 4, wherein the bent portion is detachably fixed to the lower end portion of the guide chute.

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