Dust solidification device

Abstract

A dust solidification device is provided that can homogenize the composition of dust and stably solidify the dust with a simple structure. The dust solidification device (1) includes: a storage tank (3) for storing dust (D); a forming member (5) provided in the storage tank (3) and having a forming hole (4); and a pressurizing rod (6) that can freely enter and exit the forming hole (4), so that the pressurizing rod (6) enters the forming hole (4) and solidifies the dust filled therein to obtain a solidified material (K), wherein the forming hole (4) has an entry portion (42) and an exit portion (41) for the pressurizing rod (6) and is connected to the storage tank (3), and a stirring path (r) is provided outside the exit portion (41) for guiding and stirring the dust (D) squeezed out from the exit portion (41) due to the pressurizing rod (6) entering the entry portion (42) in a direction different from the exit direction.

Description

Technical Field

[0001] The invention relates to a dust solidification device. Background Art

[0002] When laser processing, plasma processing, or welding metal materials, workers can suffer serious health damage if they inhale the dust and fumes generated. Therefore, to maintain a clean work environment, dust collectors are used to remove dust. Dust collected by dust collectors has a low bulk density, which allows them to compress and solidify the dust, turning it into a solid state that is easy to handle.

[0003] Regarding solidifying the dust, Patent Document 1 discloses a waste solidification device. This document describes a device that supplies waste accumulated in a hopper to a compression chamber located below the hopper. The compression chamber compresses the waste from above and laterally, solidifying the waste. The compression chamber then moves laterally, squeezing the solidified waste with a squeezing device and discharging it.

[0004] Patent Document 2 discloses a processing device that feeds captured fine powder into a compression chamber via a screw conveyor. When the powder reaches a specified amount, a compression slide is lowered to compress the powder and solidify it. The powder is then fed and compressed multiple times. When the solidified molded product reaches a specified size, a discharge port located below the compression chamber is opened, and the compression slide is lowered to discharge the molded product.

[0005] Patent Document 3 discloses a solidification device that supplies powder or granules collected by a dust collector to a forming chamber located below a hopper and solidifies the powder or granules using a forming member and an opening and closing member. The device describes how the solidified powder or granules, which are arranged horizontally in the forming chamber, are moved to the outside of the chamber by the forming member, and how a cleaning member descends from above to cause any solidified powder or granules adhering to the front end of the forming member to fall.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Laid-Open No. 04-123898.

[0009] Patent Document 2: Japanese Patent Application Laid-Open No. 2010-069536

[0010] Patent Document 3: Japanese Patent Application Laid-Open No. 2011-156560 Summary of the Invention

[0011] Collected dust doesn't always have a uniform composition throughout. Parts of the dust that solidify easily and those that don't solidify easily may be localized. For example, easily solidifying components are areas containing a large amount of smoke, while non-solidifying areas are areas where metal particles, larger than the smoke, have precipitated. If this uneven dust is fed directly, even if pressure is applied to solidify it, the areas containing a large number of metal particles may not solidify smoothly.

[0012] In the curing devices described in Patent Documents 1 to 3, the dust to be cured is captured or collected and directly supplied to the curing mechanism of the device. Therefore, as described above, if there is a disparity between easily curable components and less easily curable components, these curing devices may not achieve the desired curing.

[0013] The present invention has been made in view of the above-mentioned situation, and the technical problem to be solved by the present invention is to provide a dust solidifying device that can make the composition of dust uniform with a simple structure and can stably solidify the dust.

[0014] The present invention adopts the following means to solve the above-mentioned technical problems.

[0015] That is, the dust solidification device of the present invention includes: a storage tank, which stores dust; a forming component, which is arranged in the storage tank and has a forming hole; and a pressure rod, which can freely enter and exit the forming hole, so that the pressure rod enters the forming hole and solidifies the dust filled therein to obtain a solidified product, wherein the forming hole has an entry portion and a discharge portion of the pressure rod and is connected to the storage tank, and a stirring path is provided on the outside of the discharge portion, and the stirring path guides and stirs the dust squeezed out from the discharge portion due to the pressure rod entering the entry portion in a direction different from the discharge direction.

[0016] According to the present invention, since the stirring path is provided to guide and stir the dust squeezed out from the discharge portion in a direction different from the discharge direction, the components of the dust can be stirred uniformly by the reciprocating motion of the pressurizing rod.

[0017] In one embodiment of the present invention, the stirring path is composed of a return path, which includes a first guide wall and a second guide wall. The first guide wall guides the dust discharged from the discharge part in a direction intersecting with the discharge direction, and the second guide wall guides the dust in the intersecting direction in a direction opposite to the discharge direction.

[0018] According to such a configuration, a highly efficient structure can be adopted as the stirring path.

[0019] In one embodiment of the present invention, in the storage tank, the shaft is supported in a freely rotatable manner near the entrance portion of the forming hole, a stirring body extending radially outward from the shaft is fixed to the shaft, and a protrusion is provided that contacts the pressure rod when the pressure rod advances to the entrance portion to rotate the shaft and the stirring body.

[0020] According to such a configuration, the rod is provided with the stirring body that operates in coordination therewith, and therefore, the dust can be stirred more effectively with a simple configuration.

[0021] In one embodiment of the present invention, a second shaft body rotatably supported and a stirring blade fixed to the second shaft body are provided in the storage tank, and a driving source for rotating the second shaft body and the stirring blade is provided.

[0022] According to such a configuration, the dust can be stirred by the stirring blade having a driving source, and therefore the dust can be stirred efficiently and reliably.

[0023] In one embodiment of the present invention, the stirring path is a pipe that allows dust to pass through a certain section and a certain cross-sectional area.

[0024] According to such a configuration, an appropriate configuration can be adopted as the stirring path.

[0025] Another aspect of the present invention is a dust solidification device that includes: a storage tank that stores dust; a forming component that is arranged in the storage tank and has a forming hole; and a pressure rod that can freely enter and exit the forming hole, so that the pressure rod enters the forming hole and solidifies the dust filled therein to obtain a solidified product, wherein the forming hole has an entry portion and an exit portion of the pressure rod and is connected to the storage tank, and in the storage tank, the shaft is supported in a freely rotatable manner near the entry portion of the forming hole, a stirring body extending radially outward from the shaft is fixed to the shaft, and a protrusion is provided that abuts against the pressure rod when the pressure rod advances to the entry portion to rotate the shaft and the stirring body.

[0026] According to the present invention, the rod is provided with the stirring body that operates in coordination therewith, and therefore, dust can be stirred efficiently with a simple structure.

[0027] The dust solidification device of another aspect of the present invention includes: a storage tank, which stores dust; a forming component, which is arranged in the storage tank and has a forming hole; and a pressure rod, which can freely enter and exit the forming hole, so that the pressure rod enters the forming hole and solidifies the dust filled therein to obtain a solidified product, wherein a second shaft body supported in a freely rotatable manner and a stirring blade fixed to the second shaft body are provided in the storage tank, and includes a driving source for rotating the second shaft body and the stirring blade.

[0028] According to such a configuration, the dust can be stirred by the stirring blade having a driving source, and therefore the dust can be stirred efficiently and reliably.

[0029] According to the present invention, it is possible to provide a dust solidifying device that can make the components of dust uniform and stably solidify the dust with a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a side sectional view of the dust solidification device shown as an embodiment of the present invention.

[0031] Figure 2 yes Figure 1 An enlarged perspective view of the main parts inside the storage tank of the dust solidification device is shown.

[0032] Figure 3 yes Figure 2 Sectional view along line AA.

[0033] Figure 4 This is an enlarged perspective view of the main parts in the storage tank of the dust solidification device according to the embodiment of the present invention.

[0034] Figure 5 yes Figure 4 Cross-sectional view along line BB.

[0035] Figure 6 yes Figure 4 Cross-sectional view along line BB.

[0036] Figure 7 This is an enlarged perspective view of the main parts in the storage tank of the dust solidification device according to the embodiment of the present invention.

[0037] Figure 8 yes Figure 7 Sectional view along line CC.

[0038] Figure 9 It is a side sectional view of the storage tank of the dust solidification device according to the embodiment of the present invention.

[0039] Figure 10 It is a side sectional view of the main part in the storage tank of the dust solidification device according to the embodiment of the present invention.

[0040] Figure 11 It is a side sectional view of the main part in the storage tank of the dust solidification device according to the embodiment of the present invention.

[0041] Figure 12 yes Figure 5 Schematic enlargement of the main parts.

[0042] Figure 13This is a schematic enlarged view of a main part of a modified example of the second embodiment.

[0043] (Explanation of Symbols)

[0044] 1Dust solidification device

[0045] 3 storage tanks

[0046] 4 forming holes

[0047] 41 discharge unit

[0048] 42 Enter the Ministry

[0049] 5. Forming components

[0050] 6 pressure rod

[0051] 81 first guide wall

[0052] 82 second guide wall

[0053] 92 axis

[0054] 93 stirring body

[0055] 94 protrusions

[0056] 96 second axis

[0057] 96c stirring blade

[0058] 96d drive source (rotary actuator)

[0059] 97 pipeline

[0060] D Dust

[0061] K cured product

[0062] rStirring path

[0063] r1 return path DETAILED DESCRIPTION

[0064] (First embodiment)

[0065] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 It is a side sectional view of the dust solidifying device 1 of this embodiment.

[0066] like Figure 1As shown, the dust solidification device 1 includes: a device body 2; a storage tank 3, which is provided in the device body 2 and stores dust D; a forming member 5, which is provided in the storage tank 3 and has a forming hole 4; a pressurizing rod 6, which can freely enter and exit the forming hole 4; a closing rod 7, which is opposite to the pressurizing rod 6; a pressurizing rod driving cylinder 61, which drives the pressurizing rod 6; and a closing rod driving cylinder 71, which drives the closing rod 7. The dust solidification device 1 is configured so that the pressurizing rod 6 enters the forming hole 4 and solidifies the dust D filled in the forming hole 4 to obtain a solidified material K.

[0067] The above-mentioned forming hole 4 has an entry part 42 and an exit part 41 of the above-mentioned pressure rod 6 and is connected to the above-mentioned storage tank 3. The above-mentioned closing rod 7 can freely enter and exit from the exit part 41 of the above-mentioned forming hole 4, and the above-mentioned pressure rod 6 can freely enter and exit from the entry part 42 of the above-mentioned forming hole.

[0068] The first wall portion 31 and the second wall portion 32 of the device body 2 are respectively arranged opposite to the discharge portion 41 and the entrance portion 42 of the above-mentioned forming hole 4. The above-mentioned first wall portion 31 and the second wall portion 32 are respectively located on the axis of the above-mentioned forming hole 4. In addition, the first hole 21 and the second hole 22 for reciprocating movement of either or both of the above-mentioned closing rod 7 and the above-mentioned pressure rod 6 are formed on the first wall portion 31 and the second wall portion 32. The above-mentioned solidified material K in the above-mentioned forming hole 4 can pass through the above-mentioned first hole 21 together with the above-mentioned closing rod 7 and the above-mentioned pressure rod 6 and be transported to the outside of the above-mentioned storage tank 3. In addition, here, the first wall portion 31 and the second wall portion 32 also constitute the side walls inside the storage tank 3.

[0069] In the device body 2 , a discharge hole 23 is formed near the outside of the storage tank 3 . The discharge hole 23 intersects with the first hole 21 and extends in the vertical direction.

[0070] Furthermore, in the device body 2 , dustproof holes 24 and 25 are formed near the storage tank 3 and the discharge hole 23 . The dustproof holes 24 and 25 intersect the first hole 21 and the second hole 22 and extend in the vertical direction.

[0071] In addition, the above-mentioned discharge hole 23 intersects with the above-mentioned first hole 21 and extends in the up-down direction. The upper part of the above-mentioned first hole 21 is the balance weight applying member configuration part 26. The lower part of the above-mentioned first hole is the discharge hole 23. A balance weight applying member 28 is configured in the above-mentioned balance weight applying member configuration part 26. The balance weight applying member 28 is a movement support device that discharges the solidified material K toward the side of the above-mentioned discharge hole 23 when the above-mentioned pressure rod 6, the closing rod 7 and the solidified material K clamped therebetween move in the above-mentioned first hole 21. In the present embodiment, the balance weight applying member 28 is a cylindrical member having a weight greater than a certain value, and two balance weight applying members 28 are configured to be stacked longitudinally in the balance weight applying member configuration part 26.

[0072] A stirring path r is provided outside the discharge portion 41 , and guides and stirs the dust D squeezed out from the discharge portion 41 when the pressurizing rod 6 enters the entry portion in a direction different from a discharge direction h. Figure 2 This is a perspective view of the main parts of the storage tank 3. Figure 3 yes Figure 2 AA line cross-sectional view. In addition, Figure 2 、 Figure 3 The inside of the storage tank 3 is shown to be filled with dust D, but for ease of viewing the drawing, the inside of the storage tank 3 is omitted. Figure 1 The figure in FIG. 1 shows a sand grain pattern of the dust D. Hereinafter, when the inside of the storage tank 3 is shown in the figure, the same omission is performed.

[0073] like Figure 2 、 3 As shown, the stirring path r in this embodiment is composed of Figure 3 The return path r1 shown in the figure is composed of a first guide wall 81 and a second guide wall 82. The first guide wall 81 guides the dust in a direction intersecting the discharge direction h, and the second guide wall 82 guides the dust guided in the intersecting direction in a direction opposite to the discharge direction h. The first guide wall 81 is composed of the side wall 31 of the storage tank 3 and the front end 72 of the closing rod 7 positioned approximately coplanar with the side wall 31. Figure 2 As shown, the second guide wall 82 is formed by a top plate 82a located above the molded component 5 and side plates 82b, 82b located on the left and right sides of the molded component 5, surrounding the molded component 5 in a U-shape. The second guide wall 82 and the first guide wall 81 are positioned and fixed within the storage tank 3 without any gap. The return path r1 formed by this structure opens into the storage tank 3.

[0074] Next, the operation of the dust solidification device 1 constructed as described above will be described. Since the composition of the dust D includes a portion containing a large amount of easily solidified components and a portion containing a large amount of less solidified components, which are sometimes locally present in the storage tank 3, the dust solidification device 1 in this embodiment performs a step of stirring the dust D before performing the solidification step.

[0075] In the process of stirring the dust D, as described above, the front end portion 72 of the closing rod 7 is fixed approximately in the same plane as the side wall 31, and as shown by the double-dashed line, the pressurizing rod 6 is moved from the outside of the forming hole 4 through the entry portion 42 and reciprocates between the entry portion 42 and the discharge portion 41. As the pressurizing rod 6 reciprocates, the dust D is squeezed into the forming hole 4, moves in the discharge direction h within the forming hole 4, and is squeezed out from the discharge portion 41. Since the dust D is a fluid powder, the dust D squeezed out from the discharge portion 41 is moved along the first guide wall 81 in the direction of the discharge direction h. Figure 3 The dust D that has moved upward further moves along the second guide wall 82, and as a result, forms a return path r1 as indicated by symbol r1, and is transported to the vicinity of the outside of the entry portion 42, where it is mixed and agitated with the dust D that is filled in the upper portion of the pressurizing rod 6 in the storage tank 3.

[0076] Regarding the return path r1, Figure 2 The top plate 82a in FIG is described, but the same effect is also produced for the side plates 82b, 82b, as shown in FIG. Figure 2 As shown, return paths r1 and r1 are also formed in the side plates 82b and 82b.

[0077] After the above stirring process is fully carried out to achieve uniformity of the dust D, the solidification process is carried out. Figure 1 As shown, the closing rod 7 is fixed stationarily in the forming hole 4, and the pressure rod 6 is reciprocated in the same manner as in the above-mentioned stirring process. The dust D is pressed into the forming hole 4 by multiple reciprocating motions, and pressure is applied. The pressured dust D is formed into a solidified material K. After the solidified material K is formed into the desired size, the solidified material K is clamped between the pressure rod 6 and the closing rod 7, and passes through the first hole 21 together with the pressure rod 6 and the closing rod 7, and is transported to the discharge hole 23 outside the storage tank 3 and falls into the discharge hole 23 for discharge. The above stirring process and curing process are appropriately repeated to continuously solidify the dust D in the storage tank 3.

[0078] As described above, the dust solidification device 1 in this embodiment adopts a stirring process before the solidification process. Therefore, even if the composition of the dust D is uneven and parts that are easy to solidify and parts that are not easy to solidify exist locally, the composition of the dust D can be made uniform, thereby performing the solidification process. Therefore, the solidification process can be stably achieved. The dust solidification device 1 in this embodiment can achieve a stirring mechanism that makes the composition of the dust D uniform without significantly changing the previous structure, simply by adding a simple structure such as the second guide wall 82 to the previous structure. In addition, the stirring process only appropriately controls the static position of the closing rod 7 and the reciprocating motion of the pressurizing rod 6. Therefore, the stirring process can be achieved by roughly the same control as the pressurizing process. Therefore, the composition of the dust can be made uniform by a simple structure and control, thereby stably performing the solidification of the dust.

[0079] (Second embodiment)

[0080] Figure 4 It is an enlarged perspective view of the main parts in the storage tank 3 of this embodiment. Figure 5 and Figure 6 yes Figure 4 The difference between this embodiment and the first embodiment is that, in addition to the components of the first embodiment, Figure 5 As shown, in the storage tank 3, the shaft body 92 is supported in a freely rotatable manner near the entry portion 42, and a stirring body 93 extending radially outward from the shaft body 92 is fixed to the shaft body 92, and a protrusion 94 is provided which abuts against the pressure rod 6 when the pressure rod 6 advances to the entry portion 42 to rotate the shaft body 92 and the stirring body 93.

[0081] like Figure 4 As shown, shaft body 92 is rotatably supported by shaft support plates 91, 91 bolted to the side walls of storage tank 3. Agitator 93 comprises a fixed frame 93a, side frames 93b, 93b, and support rods 93c. Agitator 93 is bolted to shaft body 92 via fixed frame 93a. Side frames 93b, 93b are fixed to both ends of fixed frame 93a, and support rods 93c are fixed between side frames 93b, 93b to reinforce and support the side frames.

[0082] A stirring plate 93d is provided below the side frames 93b to stir the dust D. The stirring plate 93d is provided to extend at a certain angle from the bottom of each side frame 93b in the direction of the pressure rod 6 so as to scoop up the dust D.

[0083] Next, refer to Figure 5 and Figure 6The stirring process of the apparatus of this embodiment including the stirring body 93 will be described. Since the operations other than the stirring process of this embodiment are the same as those of the first embodiment, their description will be omitted. Furthermore, the configuration and function of the return path r1 in this embodiment are also the same as those of the first embodiment, and therefore their detailed description will be omitted.

[0084] like Figure 6 As shown, when the pressure rod 6 is not located in the storage tank 3 and does not abut against the protrusion 94, the stirring body 93 is biased by a biasing member (not shown) so that the stirring plate 93d is located below the storage tank 3. In this embodiment, a torsion spring (not shown) that biases the shaft 92 is used as the biasing member.

[0085] like Figure 5 As shown in FIG. 1 , when the pressure rod 6 moves toward the molded component 5, the pressure rod 6 contacts the protrusion 94. The stirring body 93 is linked with the protrusion 94 and rotates with the shaft body 92 as the axis. Figure 5 and Figure 6 As shown, the stirring body 93 swings as shown by the reciprocating motion of the pressure rod 6. By the swing of the stirring body 93, the stirring plate 93d picks up the dust D on both sides of the molded component 5 and perpendicular to the paper surface, and Figure 5 When the dust D is in the position, the dust D is moved along the inclination of the stirring plate 93d to the vicinity of the entry portion 42. As the dust D moves, the dust D is mixed with the dust D located near the upper portion of the pressurizing rod 6 and stirred.

[0086] Therefore, in addition to the effect achieved by the first embodiment, namely, agitation of the dust D via the return path r1, the dust D can be further agitated by the swinging of the agitator 93, thereby improving the agitation efficiency. Since the movement of the agitator 93 cooperates with the reciprocating motion of the pressure rod 6, there is no need to re-install the drive source or make major changes to the conventional structure, and a simple structure can be used to improve the agitation efficiency.

[0087] In the present embodiment, in order to configure the return path r1 , only the top plate 82 a is used as the second guide wall 82 . However, similarly to the first embodiment, the side plates 82 b may be used.

[0088] In this embodiment, a torsion spring is used as the urging member, but it is not limited thereto. Figure 6 For example, a tension spring may be provided between the front end of any one of the side frames 93b, 93b and the bottom of the storage tank 3 instead of the torsion spring.

[0089] In this embodiment, the stirring plate 93d is provided at the bottom of the side frame 93b to scoop up the dust D, but the present invention is not limited thereto. A plurality of stirring plates 93d may be provided, extending from any position of the side frame 93b toward the pressure rod 6. The shape, position, and number of the stirring plates 93d may be appropriately selected in consideration of stirring efficiency.

[0090] (Modification of the Second Embodiment)

[0091] Next, refer to Figure 12 、 Figure 13 A modification of the second embodiment will be described. Figure 12 It is a schematic enlarged view of the main part including the pressing rod 6 and the protrusion 94 according to the second embodiment. Figure 13 Schematic diagram of this modified example of the same part. Figure 12 As shown in the second embodiment, by utilizing the reciprocating motion T of the pressure rod 6, the front end of the protrusion 94 abuts against the pressure rod 6 and slides, so that the stirring body 93 swings as shown by the arrow P. The dust D is stirred by the swing of the stirring body 93. In this modification, as shown in FIG. Figure 13 As shown, a roller 94a is provided at the front end of the protrusion 94. Thus, since the roller 94a is provided at the front end of the protrusion 94, the resistance related to the movement of the pressure rod 6 and the protrusion 94 can be reduced, and in addition to the effects of the second embodiment, a smooth stirring action can be further implemented.

[0092] (Third embodiment)

[0093] Figure 7 It is an enlarged perspective view of the main parts in the storage tank 3 of this embodiment. Figure 8 yes Figure 7 The difference between this embodiment and the first embodiment is that, in addition to the components of the first embodiment, Figure 7 As shown, a second shaft 96 rotatably supported and a stirring blade 96 c fixed to the second shaft 96 are provided in the storage tank 3 , and a driving source 96 d for rotating the second shaft 96 and the stirring blade 96 c is provided.

[0094] In more detail, Figure 7 As shown, shaft 96 is rotatably supported by a support frame 95 fixed to the side wall of storage tank 3. A pair of rotating disks 96b, 96b are fixed to a rod 96a, which forms part of shaft 96, at positions spaced a certain distance to the left and right from the center of rod 96a. Three stirring blades 96c are fixed to the opposing inner surfaces of each rotating disk 96b, 96b. A rotary actuator 96d, serving as a drive source 96d for rotating shaft 96, is fixed to support frame 95.

[0095] Next, refer to Figure 7 and Figure 8 The stirring process of the device of this embodiment, which includes the stirring blade 96c, will be described. Since the operations other than the stirring process of this embodiment are the same as those of the first embodiment, their description will be omitted. Furthermore, the structure and function of the return path r1 in this embodiment are also the same as those of the first embodiment, and therefore their detailed description will be omitted.

[0096] In the present embodiment, in the stirring process, the rotary blade 96c is moved along the axis of the stirring blade 96c by the rotary actuator 96d. Figure 7 The dust D is stirred by the rotation of the stirring blade 96c. Figure 8 In addition to the effect of the return path r1 having the same function as in the first embodiment shown, the dust D is stirred by the stirring blades 96 c.

[0097] Therefore, in this embodiment, in addition to the same operational effects as the first embodiment, the stirring effect of the stirring blade 96c is added, thereby achieving highly efficient stirring of the dust D. The rotational drive of the stirring blade 96c by the rotary actuator 96d is independent of the operation of the pressurizing rod 6 and the closing rod 7. Thus, the stirring operation can be continuously performed simultaneously during the solidification process of the pressurizing rod 6 and the closing rod 7, thereby efficiently homogenizing the composition of the dust D.

[0098] In this embodiment, the direction of arrow Q is used as the rotation direction of the stirring blade 96c, but the present invention is not limited thereto. The stirring blade 96c may also be rotated in the direction opposite to the direction of arrow Q. In addition, the rotation of arrow Q and its reverse direction may be applied to each other. The rotation control of the stirring blade 96c can be appropriately selected in consideration of the stirring situation.

[0099] (Fourth embodiment)

[0100] Figure 9 This is a side cross-sectional view of the storage tank 3 of the dust solidification device 1 according to this embodiment. This embodiment differs from the first embodiment in that a pipe 97 is used as the stirring path r2, which allows dust D to pass through a certain interval and a certain cross-sectional area. Pipe 97 is formed to connect from the lower portion of the storage tank 3 to the upper portion of the storage tank via the exterior of the side wall 31.

[0101] like Figure 9As shown, during the stirring process of this embodiment, the closing rod 7 is fixed stationary at the lower portion of the pipe 97 so as to be substantially coplanar with the inner surface of the pipe 97. In this state, by reciprocating the pressurizing rod 6 as indicated by the arrow, the stirring path r2 can circulate the dust as indicated by the arrow, thereby stirring the dust D. Therefore, the same operation and effects as the first embodiment can be achieved.

[0102] (Fifth embodiment)

[0103] Figure 10 This is a side sectional view of the main portion of the storage tank of the dust solidification device of this embodiment. This embodiment differs from the second embodiment in that a return path r1 is not formed. The functions and effects of the components including the other agitator 93 are the same as those of the second embodiment. In this embodiment, the device structure can be simplified.

[0104] (Sixth embodiment)

[0105] Figure 11 This is a side sectional view of the main portion of the storage tank of the dust solidification device of this embodiment. This embodiment differs from the third embodiment in that the return path r1 is not formed. The functions and effects of the other components, including the stirring blade 96c, are the same as those of the third embodiment. In this embodiment, the device structure can be simplified.

[0106] In the above embodiment, the storage tank 3 is filled with the dust D. However, regardless of the amount of the dust D, the effects of the present invention can be effectively exerted even if the storage tank 3 is not sufficiently filled with the dust D.

Claims

1. A dust solidification device, comprising: a storage tank for storing dust; a forming member disposed in the storage tank and having a forming hole; as well as A pressure rod, which can freely enter and exit the forming hole. The pressurizing rod is made to enter the forming hole, and the dust filled in the forming hole is solidified to obtain a solidified product, characterized in that: The forming hole has an entry portion and a discharge portion of the pressurizing rod and is connected to the storage tank. A stirring path is provided outside the discharge portion. The stirring path is connected to the discharge portion and the storage tank, and guides and stirs the dust squeezed out from the discharge portion due to the pressurizing rod entering the entry portion in a direction different from the discharge direction.

2. The dust solidification device according to claim 1, characterized in that: The stirring path is composed of a return path, and the return path includes a first guide wall and a second guide wall. The first guide wall guides the dust discharged from the discharge part in a direction intersecting with the discharge direction, and the second guide wall guides the dust guided to the intersecting direction in a direction opposite to the discharge direction.

3. The dust solidification device according to claim 1 or 2, characterized in that: In the accumulation tank, a shaft is supported in a freely rotatable manner near the entry portion of the forming hole, a stirring body extending radially outward from the shaft is fixed to the shaft, and a protrusion is provided that abuts against the pressure rod when the pressure rod advances to the entry portion to rotate the shaft and the stirring body. The stirring body rotates by the reciprocating motion of the pressure rod.

4. The dust solidification device according to claim 1 or 2, characterized in that: The storage tank is provided with: a second shaft body supported in a freely rotatable manner; and A stirring blade fixed to the second shaft, A driving source for rotating the second shaft and the stirring blade is included.

5. The dust solidification device according to claim 1, characterized in that: The stirring path is a pipeline that allows the dust to pass through a certain interval and a certain cross-sectional area.

6. A dust solidification device comprising: a storage tank for storing dust; a forming member disposed in the storage tank and having a forming hole; as well as A pressure rod, which can freely enter and exit the forming hole. The pressurizing rod is made to enter the forming hole, and the dust filled in the forming hole is solidified to obtain a solidified product, characterized in that: The forming hole has an inlet portion and an outlet portion of the pressurizing rod and is communicated with the storage tank. In the accumulation tank, a shaft is supported in a freely rotatable manner near the entry portion of the forming hole, a stirring body extending radially outward from the shaft is fixed to the shaft, and a protrusion is provided that abuts against the pressure rod when the pressure rod advances to the entry portion to rotate the shaft and the stirring body. The stirring body rotates by the reciprocating motion of the pressure rod.

7. A dust solidification device comprising: a storage tank for storing dust; a forming member disposed in the storage tank and having a forming hole; as well as A pressure rod, which can freely enter and exit the forming hole. The pressurizing rod is made to enter the forming hole, and the dust filled in the forming hole is solidified to obtain a solidified product, characterized in that: The forming hole has an inlet portion and an outlet portion of the pressurizing rod and is connected to the storage tank. A stirring path connected to the outlet portion and the storage tank is provided outside the outlet portion. The storage tank is provided with: a second shaft body rotatably supported by a support frame fixed to a side wall of the storage tank; as well as A stirring blade fixed to the second shaft, A driving source for rotating the second shaft and the stirring blade is included.

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