JP7468982B2 - Lump deposit removal device - Google Patents

Description

The present invention relates to an attachment removal device for removing attachments from a mass of material to which the attachments to be removed are attached.

Patent Document 1 discloses a limestone washing system that removes clays adhering to low-grade limestone from the surface of the limestone. The washing system in Patent Document 1 has a primary washing device and a secondary washing device. The primary washing device is formed as a horizontal rotating cylindrical drum scrubber, and the secondary washing device is formed as a horizontal rotating drum type grinding machine. In the drum scrubber as the primary washing device, lumps of clays adhering to the low-grade limestone and clays that have solidified into individual lumps are dissolved and removed with water. This reduces the load on the grinding machine during secondary washing.

The limestone is then washed in a grinding mill. In some cases, the limestone is fed directly into the grinding mill, skipping the first wash.

The grinding machine has a groove that extends in the axial direction on the inner periphery of the drum, and a rod is placed in this groove. As the drum rotates, the rod is scraped up inside the drum and falls onto the mixture of limestone and water, and the limestone is ground by the impact with the rod. Clay adhering to the limestone is removed by grinding and discharged from the drum with added water.

A cylindrical trommel (separator) is provided on the discharge side of the drum, and the suspended water containing clay falls through the mesh gaps formed on the periphery of the trommel, while the large limestone particles remaining on the mesh are discharged from the discharge port, which is an opening at the axial end of the trommel.

The large limestone particles discharged from the trommel may have fine limestone particles adhering to their surface, and the limestone is sent to a dewatering coarse sieve to remove the fine limestone particles from the surface and produce higher-quality limestone.

Patent Publication 2010-143797

In Patent Document 1, added water is used in both the first and second washes to remove clay and other deposits from the limestone. This requires equipment and labor for post-processing, such as solid-liquid separation of the removed deposits and the suspension of the added water, and when processing in cold regions, the suspension freezes, making post-processing difficult.

As a method of removing deposits that does not use added water, it is possible to remove deposits by spraying air onto the limestone. However, this method has problems such as the deposits scattering, making it difficult to collect them, and worsening the surrounding environment.

In addition, there is a method in which limestone is placed in a drum with a mesh without injecting air, and the drum is rotated, causing the limestone to collide with each other and remove any deposits from the limestone, which are then discharged through the mesh of the drum. However, with this method, the removed deposits can clog the mesh, reducing its function or causing it to stop working.

In view of the above circumstances, the present invention aims to provide a device for removing adhesions from lumps of material that can remove adhesions from lumps of material without adding water or spraying air, and that does not cause clogging of the adhesion drop holes.

The clump-adhesive removal device of the present invention has a cylindrical body that has an inlet at one end in the direction of a horizontal axis for introducing clumps with adhesive to be removed, and an outlet at the other end in the direction of the axis for discharging the clumps after the adhesive has been removed, and a drive unit that drives the cylindrical body to rotate around the axis.

In the present invention, in such a device for removing deposits from lumps, the cylindrical body has a slit region in at least a portion of the cylindrical body in the direction of the axis, in which slit holes extending in the circumferential direction of the cylindrical body and penetrating the peripheral wall of the cylindrical body are formed, and deposits removed from the lumps within the cylindrical body can be discharged from the slit holes to the outside of the cylindrical body, and a wiping member is provided in contact with the slit region of the cylindrical body at a relative speed in the circumferential direction to the cylindrical body, and removes deposits that have become clogged in the slit holes.

In the present invention, "lumps" refer to raw stones and raw stone processed products obtained by processing raw stones. Examples of raw stones include limestone, and examples of raw stone processed products include quicklime obtained by burning limestone.

In the device for removing adhesions from lumps according to the present invention, the cylindrical body rotates under the driving force of the drive unit, and when a lump with adhesions to be removed is fed into the cylindrical body from an inlet formed on one end side of the cylindrical body, the rotation of the cylindrical body causes the lump inside the cylindrical body to move of its own accord to the discharge outlet formed on the other end side of the cylindrical body as subsequent lumps are fed in. While the cylindrical body is rotating, the lump rolls by repeatedly being lifted in the circumferential direction by friction with the inner circumferential surface of the cylindrical body and then falling, during which the lumps collide and rub against each other, causing the adhesions to peel off and be removed from the lump surface, and the lump from which the adhesions have been removed and the adhesions removed from the lump move inside the cylindrical body toward the discharge outlet.

The cylindrical body has a slit region in a portion of the cylindrical body in the axial direction, where slit holes are formed that extend in the circumferential direction and penetrate the peripheral wall of the cylindrical body, and the deposits heading toward the discharge outlet fall through the slit holes in this slit region and are discharged. After the deposits have been removed, the lumps, mainly those with a diameter equal to or greater than the slit width, reach the discharge outlet and are removed from the discharge outlet.

The wiping member is in contact with the slit area of the cylindrical body, and the slit holes are wiped by the phase movement between the cylindrical body rotating in the circumferential direction of the cylindrical body, i.e., the longitudinal direction of the slit, and the wiping member, so clogging of the slit holes due to adhesions does not occur.

Thus, the clumps are simply rolled around inside the cylinder and any attached material is removed.

In the present invention, it is preferable that a friction member is disposed inside the cylindrical body, which rubs against the lumps before removal of the adhesions to remove the adhesions from the lumps. In this way, the adhesions are not simply peeled off and removed by collision and friction between the lumps, but are also finely peeled off and removed by the friction member.

In the present invention, the wiping member can be formed as at least one of an outer wiping member that contacts the outer peripheral surface of the cylindrical body and an inner wiping member that contacts the inner peripheral surface. If the wiping member is provided so as to contact the outer peripheral surface of the cylindrical body, handling such as maintenance and replacement is simplified, and if the wiping member is provided so as to contact the inner peripheral surface of the cylindrical body, the entire device becomes compact.

In the present invention, the above-mentioned wiping member can be a comb body. The thin strips that make up the comb body are elastic and easily bendable, and when they come into contact with a part of the cylindrical body that does not have a slit hole, they undergo elastic bending. When they come to be located at the slit hole part while the cylindrical body is rotating, the elastic bending is released and they enter the slit hole, removing any deposits from the slit hole. As a result, clogging of the slit hole due to deposits can be prevented.

In the present invention, the friction member can be a brush body.

In the present invention, the cylindrical body is provided with a lump scraping member that rises radially inward from the inner surface of the cylindrical body and extends in the axial direction, and the lump scraping member is preferably tilted in the axial direction so that the end of the lump scraping member on the discharge port side in the axial direction is positioned lower than the end of the lump scraping member on the input port side when scraping up the lump with the rotation of the cylindrical body. The lump inside the cylindrical body rolls as it is lifted and falls due to friction with the inner surface of the cylindrical body as the cylindrical body rotates, but by providing the lump scraping member, the lump is scraped up more actively and the rolling becomes more reliable and active. In addition, because the lump scraping member is tilted with respect to the axis as described above, the lump slides on the lump scraping member toward the discharge port side during the process of being scraped up by the lump scraping member and falling, promoting the movement of the lump toward the discharge port.

As described above, in the present invention, the lumps before removal of adhesions, which roll inside the rotating cylinder, are caused to roll while moving from the input port toward the discharge port, and the adhesions peeled off and removed from the lumps are dropped and discharged through the slit holes in the slit area as they move toward the discharge port, and the lumps from which the adhesions have been removed are taken out from the discharge port, and the adhesions in the slit holes are removed by contacting a wiping member with the slit area. Therefore, in the present invention, it is possible to provide a lump adhesion removal device that removes adhesions from the lumps without adding water or spraying air, and that does not cause clogging of the adhesion drop holes.

FIG. 2 is a longitudinal cross-sectional view of the device according to one embodiment of the present invention taken along a plane including the axis of the cylindrical body. 1, (B) is a view taken along line BB in FIG. 1, (C) is a cross-sectional view taken along line CC in FIG. 1, and (D) is a cross-sectional view taken along line DD in FIG. 2 is a development view showing a slit region of the peripheral surface of the cylindrical body in FIG. 1 as a plane. FIG.

The lump deposit removal device according to an embodiment of the present invention is a device for removing deposits (such as clay) that are attached to the surface of raw stones (e.g. limestone) as lumps, and separating the raw stones from the deposits. As shown in FIG. 1, the lump deposit removal device according to this embodiment has a cylindrical body 10, a chute 20, a wiping member 30, a friction member 40, a case 50, a raw stone discharge conveyor 60, and a deposit discharge conveyor 70.

The cylindrical body 10 has a cylindrical or polygonal cylindrical shape with an axis X extending horizontally (cylindrical in the illustrated example). The cylindrical body 10 has an inlet 11 for inputting raw stones at one end (left end in FIG. 1) in the direction of the axis X, and an outlet 12 for discharging raw stones at the other end (right end in FIG. 1). The axis X is horizontal or slightly inclined relative to the horizontal so that the outlet 12 side faces downward (horizontal in the illustrated example). The inlet 11 is formed by attaching an inclined ring plate 11A to the corner of the inner surface of the cylindrical body 10, and the outlet 12 is formed by an outlet tube 12A with a diameter smaller than the diameter of the cylindrical body 10 main body. Due to the diameter difference between the cylindrical body 10 main body and the outlet tube 12A, the annular end plate portion 10A of the cylindrical body 10 forms a dam portion with respect to the outlet tube 12A. The rough stones inside the cylindrical body 10 roll as the cylindrical body 10 rotates, causing the rough stones to collide and rub against each other, causing any attached matter to peel off and be removed from the rough stone surface.

The cylindrical body 10 has a slit area S having a plurality of slit holes 13 as attachment drop holes in the end area near the discharge port 12 in the axial line X direction. As shown in FIG. 3, which shows a part of the circumferential direction of the slit area S developed as a plane, the slit area S has rows of circumferentially extending slit holes 13 at multiple positions spaced apart in the axial line X direction. The slit holes 13 in each row are divided into multiple parts in the circumferential direction and located separately at the same position in the axial line X direction. The width of each slit hole 13 (width in the axial line X direction) is set appropriately and is larger than the maximum particle size of the attachment to be removed from the rough stone. In the illustrated example, the set width of the slit hole 13 cannot be changed, but for example, the width of the slit hole 13 may be adjusted by providing a member that can slide in the axial line X direction within the width dimension of the slit hole on the circumferential surface of the cylindrical body 10 and moving it so as to shift in the axial line X direction.

A rough stone scraping member 14 is attached to the inner peripheral surface of the cylindrical body 10 at one end side (left end side) of the slit area S in the axial X direction as a lump scraping member. In the illustrated example, the rough stone scraping members 14A and 14B are arranged at two positions spaced apart in the axial X direction. Although the positions of the two rough stone scraping members 14A and 14B are different in the axial X direction, in this embodiment, the shapes themselves are the same. However, the dimensions of the two rough stone scraping members 14A and 14B in the axial X direction, circumferential positions (described later), and inclination angles may be different from each other depending on the properties of the rough stone in the cylindrical body 10.

In the example of FIG. 1, the raw stone scraping members 14A, 14B are both distributed at multiple positions in the circumferential direction (four positions as shown in FIG. 2(A) in the illustrated example). The raw stone scraping members 14A, 14B have radial portions 14A-1, 14B-1 that rise from the inner surface of the cylindrical body 10 toward the inside in the radial direction of the cylindrical body 10 and extend in the direction of the axis X, and bent portions 14A-2, 14B-2 that are bent in an L-shape at the tip positions of the radial portions 14A-1, 14B-1. In the example of FIG. 1, the raw stone scraping members 14A, 14B have an inclination angle θ that is positioned upward with respect to the axis X so that the end on the discharge port 12 side is positioned above the end on the input port 11 side in the axial direction when they move upward in the circumferential direction with the rotation of the cylindrical body 10 to scrape up the raw stone.

In other words, as the cylindrical body 10 rotates, the rough stone scraping members 14A, 14B move upward in the circumferential direction to a position above the axis X, and when some of the rough stones begin to slide down, the end on the discharge port 12 side is positioned below the end on the input port 11 side. Therefore, as some of the rough stones slide down from the rough stone scraping members 14A, 14B, they move along the axis X toward the discharge port 12, which promotes the movement of the rough stones.

In this embodiment, not all of the rough stones on the rough stone lifting members 14A, 14B slide down from the time when the rough stone lifting members 14A, 14B are positioned above the axis X until they reach the top position of the cylindrical body 10. The rough stones that do not slide down are prevented from falling by the bent portions 14A-2, 14B-2 and remain on the rough stone lifting members 14A, 14B. As the cylindrical body 10 continues to rotate, the rough stone lifting members 14A, 14B begin to descend from the top position, and the remaining rough stones fall directly from the bent portions 14A-2, 14B-2 with a large drop to the bottom of the cylindrical body 10 where no rough stones are present, as shown in FIG. 2(A). The impact of this fall is large, so many attachments can be removed from the rough stones.

The rough stone scraping members 14A, 14B are not limited to the range in the axial direction X shown in FIG. 1, but may be distributed over other parts of the cylindrical body 10 in the same direction or over the entire length of the cylindrical body 10. For example, the rough stone scraping members 14A, 14B may be provided in the range of the slit region S. By providing the rough stone scraping members 14A, 14B in the range of the slit region S, the deposits removed from the rough stone can be quickly discharged from the slit hole 13.

In addition, in this embodiment, the raw stone scraping members 14A, 14B are arranged in a tilted position with respect to the axis X of the cylindrical body 10, with the discharge outlet 12 side facing downward more than the inlet 11 side. However, as a modified example, if the cylindrical body 10 is slightly tilted from the horizontal with the axis X facing downward on the discharge outlet 12 side, the raw stone scraping members 14A, 14B may be arranged in a position parallel to the axis X.

A supported ring body 15 is attached to the outer periphery of the cylindrical body 10. In the illustrated example, supported rings 15A and 15B are attached at two positions spaced apart in the direction of axis X. As can be seen clearly in FIG. 2(A), these supported rings 15A and 15B are supported by rotating supports 16A and 16B located below the cylindrical body 10. In this embodiment, the two rotating supports 16A and 16B not only support the supported rings 15A and 15B, but at least one of them transmits a rotational driving force to one of the supported rings 15A and 15B. Thus, the cylindrical body 10 rotates around the axis X in the direction indicated by the arrow in FIG. 2(A) while being supported by the rotating supports 16A and 16B at the supported rings 15A and 15B.

The friction member 40 is disposed inside the cylindrical body 10 and enters through the discharge port 12. As shown in FIG. 2(A), the friction member 40 is located below the axis X of the cylindrical body 10 and ahead of the vertical line Z passing through the axis X in the direction of rotation of the cylindrical body 10. The friction member 40 is a brush body in which a large number of elastic filaments 42 are planted on the peripheral surface of a part of the shaft body 41 parallel to the axis X. In the example of FIG. 1, the elastic filaments 42 are provided over a range spanning a part of each of the two rough stone scraping members 14A and 14B that are provided apart in the direction of the axis X. The friction member 40 is driven to rotate the shaft body 41 from the outside, and the elastic filaments 42 rub off the deposits on the surface of the rough stone rolling inside the cylindrical body 10 by friction from the rough stone.

The friction member 40 is not limited to the range in the axial direction X shown in FIG. 1, but may be provided in another part of the range of the cylindrical body 10 in the same direction or over the entire length of the cylindrical body 10. For example, the friction member 40 may be provided in the range of the slit region S. By providing the friction member 40 in the range of the slit region S, the deposits removed from the rough stone can be quickly discharged from the slit hole 13.

A wiping member 30 is provided on the outer periphery of the cylindrical body 10 in the range of the slit region S of the cylindrical body 10 in the direction of the axis X. As can be seen in Figs. 1 and 2 (B) to (D), the wiping member 30 is provided in the range of the slit region S in the direction of the axis X at a position above the cylindrical body 10. The wiping member 30 forms a comb body in which a number of strips 32 are supported by a support 31 attached to the inner surface of the case 50, which will be described later. The strips 32 are formed from an elastic material, for example, a metal wire.

The strips 32 of the wiping member 30 are provided corresponding to the slits 13 formed at intervals in the circumferential direction in the direction of the axis X. The strips 32 are set in a direction and length that extends from the support 31, passes through the slits 13, and enters the interior of the cylindrical body 10. The support 31 attached to the case 50 is stationary, so that when the cylindrical body 10 rotates, the strips 32 enter the slits 13 (see Figures 2(B) and 2(D)). When the strips 32 continue to rotate and reach the position of the non-formed portion of the slits 13, they elastically bend and deform due to contact with the non-formed portion, and are pressed against the outer circumferential surface of the cylindrical body 10 (see Figure 2(C)).

The cylindrical body 10 is surrounded by the case 50 within the range of the slit region S in the direction of the axis X. As can be seen in Figures 2(B) to (D), the case 50 has a rectangular box-like portion 50A above the axis X, and a pyramidal cylinder whose outer diameter decreases downward at the lower portion 50B, and the lower end of the lower portion 50B forms a cylindrical outlet 51 for dropping and discharging attached material.

Below the discharge port 12 of the cylindrical body 10, a rough stone discharge conveyor 60 for discharging the rough stones from which the extraneous matter has been removed is provided, extending in a direction away from the cylindrical body 10 in the direction of the axis X (to the right in FIG. 1).

In addition, below the attachment drop discharge port 51 of the case 50, a attachment discharge conveyor 70 is provided to transport the attachments that have fallen and been discharged from the attachment drop discharge port 51.

Next, we will explain how to remove deposits from rough stones using the deposit removal device of this embodiment.

In FIG. 1, the cylindrical body 10 and the friction member 40 are both rotated, and the raw stone conveyor 60 and the deposit conveyor 70 are both driven to run.

In this state, the rough stones with the deposits are fed into the chute 20 of the cylindrical body 10. The rough stones slide down the chute 20 and reach the inside of the cylindrical body 10 through the inlet 11 of the cylindrical body 10. At this time, since an inclined ring plate 11A is provided inside the inlet 11, the rough stones do not remain in the corners inside the inlet 11, and as the supply amount of the rough stones supplied from the inlet 11 increases inside the cylindrical body 10, they naturally try to move in the direction of the axis X inside the rotating cylindrical body 10 toward the discharge outlet 12. When the rough stones reach the position of the rough stone scraping member 14A close to the inlet 11, they are scraped up by the rough stone scraping member 14A as the cylindrical body 10 rotates, and when they reach above the axis X, some of the rough stones slide down from the rough stone scraping member 14A. Because the rough stone scraping member 14A has an inclination angle θ, when it moves upward in the circumferential direction and is positioned above the axis X, it becomes inclined downward toward the discharge outlet 12, and therefore some of the rough stones slide down from the rough stone scraping member 14A and move in the direction of the axis X toward the discharge outlet 12. Thus, the rough stones reach the position of the next rough stone scraping member 14B, are scraped up by this rough stone scraping member 14B, and as they slide down from the rough stone scraping member 14B, they move further toward the discharge outlet 12.

The rough stones with the deposits adhering to them are scooped up by the rough stone scooping members 14A, 14B provided at two positions in the direction of the axis X, and then slide down from these rough stone scooping members 14A, 14B, rolling inside the cylindrical body 10 and moving toward the discharge port 12.

Inside the cylindrical body 10, the friction member 40, which forms a brush body, rotates, and the rolling rough stone is rubbed against the elastic filament 42 of this friction member 40, resulting in the adhesions being peeled off and removed from the rough stone.

In addition, any rough stones that remain without sliding down while the rough stone scraping members 14A, 14B reach the top position of the cylindrical body 10 will, when the rough stone scraping members 14A, 14B begin to descend from the top position, fall directly from the bent portions 14A-2, 14B-2 with a large drop to the bottom of the cylindrical body 10 where there are no rough stones, and the impact of this fall removes many of the deposits from the rough stones.

Thus, the mixture of the ore from which the attachments have been removed and the attachments removed from the ore moves in the axial direction X toward the discharge port 12 inside the cylindrical body 10 and reaches the slit area S. In the slit area S, circumferentially extending slit holes 13 are formed at multiple positions spaced apart in the axial direction X, and the fine attachments fall and are discharged from the slit holes 13. As a result, the ore from which the attachments have been removed reaches the vicinity of the annular end plate portion 10A of the cylindrical body 10. Since the annular end plate portion 10A forms a dam on the way to the discharge port 12, the ore and the remaining attachments remain near the annular end plate portion 10A, but the following ore and the remaining attachments are continuously carried from the input port 11 while rolling, and accumulate above the height of the dam, so that only the ore that has exceeded the dam is discharged from the discharge port 12.

The rough stones from which the attachments have been removed that fall from the discharge port 12 fall onto the rough stone discharge conveyor 60, are carried away by this rough stone discharge conveyor 60, and are appropriately processed. Meanwhile, the attachments removed from the rough stones fall through the slit holes 13 onto the attachment discharge conveyor 70, are carried away by this attachment discharge conveyor 70, and are appropriately processed.

The deposits may adhere to the edges of the slit holes 13 in the slit area S, causing clogging of the slit holes 13. However, in the device of this embodiment, a wiping member 30 is provided in the slit area S so as to abut against the outer surface of the cylindrical body 10, and the wiping member 30 prevents clogging as described below.

As mentioned above, the comb-shaped wiping member 30 has multiple strips 32 made of elastic material. In the slit region S, slit holes 13 are formed at multiple positions in the axial direction X to form rows of slit holes. The slit holes 13 in each row are divided and separated in the circumferential direction, so that the slit region S has a range of slit holes 13 and a range of non-slit portions located between the slit holes 13 in the circumferential direction. The strips 32 of the wiping member 30 enter the slit holes 13 in the circumferential range of the slit holes 13 (see FIG. 2(D)), remove the deposits attached to the edges of the slit holes 13, and in the range of the non-slit portions, they elastically bend and come into contact with the outer circumferential surface of the cylindrical body 10 (see FIG. 2(C)).

Thus, the strip 32 enters the corresponding slit 13 and removes any deposits that have adhered to the edges of the slit 13. As a result, the slit 13 is almost always wiped clean, and clogging does not occur.

The deposits that fall from inside the cylindrical body 10 through the slit hole 13, and the deposits that are removed from the edge of the slit hole 13 by the wiping member 30, fall inside the case 50 without scattering outside the case 50, are discharged from the deposit drop discharge port 51, and fall onto the deposit discharge conveyor 70.

The present invention is not limited to the illustrated and described form, and various modifications are possible. For example, in the illustrated example, the wiping member 30 is provided outside the cylindrical body 10, but instead, it can be provided inside the cylindrical body 10. In that case, the entire device becomes compact. It is also possible to provide the wiping member 30 both outside and inside the cylindrical body 10.

In this embodiment, the slit area S is formed in the end area of the cylindrical body 10 near the discharge port 12 in the axial direction X, but the position of the slit area S in the axial direction X is not limited to this, and it can be formed at an appropriate position in the axial direction X. For example, the slit area S may be formed in the middle area of the cylindrical body 10 in the axial direction X.

In this embodiment, both of the rough stone scraping members 14A and 14B are provided with an inclination angle that allows the rough stone to slide down toward the discharge port 12 side. Alternatively, the rough stone scraping member 14B located on the discharge port 12 side of the rough stone scraping members 14A and 14B may be provided with an inclination angle that allows the rough stone to slide down toward the input port 11 side. In this case, the rough stone scraping member 14B has an inclination angle that is located upward with respect to the axis X so that the end on the input port 11 side is located above the end on the discharge port 12 side in the axis X direction when scraping up the rough stone. In other words, when the rough stone scraping member 14B moves upward in the circumferential direction with the rotation of the cylindrical body 10 and is located above the axis X, the end on the input port 11 side is located below the end on the discharge port 12 side.

In this modified example, the raw stones scraped up by the raw stone scraping member 14A slide down towards the discharge port 12, and the raw stones scraped up by the raw stone scraping member 14B slide down in the direction back towards the input port 11. As a result, the raw stones circulate within the cylindrical body 10 and stay within the cylindrical body 10 for a longer period of time, so that the deposits can be removed more effectively from the raw stones. Even in this modified example, the raw stones are continuously input from the input port 11, so the raw stones stay within the cylindrical body 10 for a long period of time, but eventually move towards the discharge port 12 and are gradually discharged from the discharge port 12.

In this embodiment, the example in which the wiping member 30 is a comb body has been described, but it is not essential that the wiping member 30 is a comb body, and it may be, for example, a brush body. The wiping member 30 may also be configured by attaching a plurality of strips to a support body that is an axial body extending in the axial direction X, for example, by pin connection, so that the strips can swing freely. In the wiping member 30 configured in this way, the strips are, for example, rod-shaped or plate-shaped, slightly thinner than the width dimension of the slit holes 13, and are provided at the same positions as the slit holes 13 in the axial direction X. The upper ends of these strips are supported in a state in which they can swing freely around the axis of the support body, and when in a free state, they hang down under their own weight. Therefore, in the range of the slit holes 13 in the circumferential direction, the strips enter the slit holes 13 in a hanging position and remove the deposits attached to the edges of the slit holes 13, while in the range of the non-slit portion, they swing around the axis of the support body as if they are lifted by the outer circumferential surface of the cylindrical body 10, and abut against the outer circumferential surface of the cylindrical body 10.

In this embodiment, an example of removing adhesions from raw stones as lumps by the adhesion removal device has been described, but the object from which adhesions should be removed is not limited to raw stones, and may be a processed product of raw stones as lumps. For example, quicklime as a processed product obtained by burning limestone as raw stones often contains particles of various particle sizes. When such quicklime is put into the cylindrical body 10 of the adhesion removal device according to this embodiment, the fine quicklime adhering to the surface of the lumps of quicklime with large particle sizes is removed in the manner described above and discharged from the slit holes 13, while the lumps of quicklime are discharged from the discharge port 12. At this time, not only the fine quicklime that has been removed but also quicklime with a smaller diameter than the slit holes 13, i.e., quicklime that was mixed in without adhering to the lumps of quicklime, is discharged from the slit holes 13. In other words, the device according to this embodiment can be used not only as a device for removing fine quicklime, but also as a device for classifying quicklime.

10 Cylindrical body 11 Feeding port 12 Discharge port 13 Slit hole 14A, 14B Raw stone scraping member (lump scraping member)
30: wiping member 40: friction member 50: case 51: outlet for dropping and discharging attached matter S: slit area X: axis

Claims (7)

A lump deposit removal device having a cylindrical body having an inlet at one end in a horizontal axis direction for introducing lumps having deposits to be removed and an outlet at the other end in the axis direction for discharging the lumps after the deposits have been removed, and a drive unit for rotating the cylindrical body about the axis,
the cylindrical body has a slit region in at least a portion of the cylindrical body in the axial direction, in which a slit hole extending in the circumferential direction of the cylindrical body and penetrating the peripheral wall of the cylindrical body is formed, and it is possible to discharge the deposit removed from the lump inside the cylindrical body to the outside of the cylindrical body through the slit hole,
The device for removing lump deposits is characterized in that it is equipped with a wiping member which is provided in correspondence with the slit holes in the slit region of the cylindrical body at a relative speed in the circumferential direction with respect to the cylindrical body, and which is set in a direction and length such that it penetrates the slit holes and enters the interior of the cylindrical body, and which removes deposits that have become clogged in the slit holes. A lump deposit removal device having a cylindrical body having an inlet at one end in a horizontal axis direction for introducing lumps having deposits to be removed and an outlet at the other end in the axis direction for discharging the lumps after the deposits have been removed, and a drive unit for rotating the cylindrical body about the axis,
The cylindrical body has a plurality of slit regions arranged in a circumferential direction in at least a portion of the cylindrical body in the axial direction, the slit regions each having slit holes extending in a circumferential direction of the cylindrical body and penetrating a peripheral wall of the cylindrical body, the slit holes of each slit region being formed so as to be alternated in the circumferential direction with respect to the slit holes of the other slit regions, and it is possible to discharge adhesions removed from a lump inside the cylindrical body from the slit holes to the outside of the cylindrical body,
A lump deposit removal device characterized by comprising a wiping member that is arranged to abut against the slit area of the cylindrical body at a relative speed in the circumferential direction with respect to the cylindrical body and removes deposits that have become clogged in the slit holes. 3. The device for removing deposits from lumps according to claim 1 or 2, further comprising a friction member disposed within said cylindrical body for removing deposits from said lumps by friction relative to the lumps before removal of deposits. 3. The lump-like matter adhering removal device as described in claim 2, wherein the wiping member is formed of at least one of an outer wiping member abutting the outer peripheral surface of the cylindrical body and an inner wiping member abutting the inner peripheral surface. 5. An apparatus for removing deposits of lumps of matter according to claim 1, wherein said wiping member is a comb. 4. The device for removing deposits of lump matter according to claim 3 , wherein said friction member is a brush body. The cylindrical body is provided with a lump scraping member that rises radially inward from the inner surface of the cylindrical body and extends in the axial direction, and the lump scraping member is inclined in the axial direction so that when the lump is scraped up as the cylindrical body rotates, the end portion on the discharge outlet side in the axial direction is positioned lower than the end portion on the input inlet side in the axial direction.A lump adhesion removal device as described in any one of claims 1 to 6 .

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