Chute replacement method for cyclone chute, and cyclone chute

Abstract

[Problem] To provide a method for safely replacing the chute of a cyclone chute with less burden on an operator. [Solution] Provided is a method for replacing the chute of a cyclone chute 100 inserted into a recovery part 60, in which cyclone chute 100 a cyclone part 10 fixed to a frame 40, a chute part 20 inserted into an insertion port 61 of the recovery part 60, and a spacer part 30, which has a thickness H1 greater than an insertion depth H4 of the chute part 20 into the recovery part 60 and which is located between the cyclone part 10 and the chute part 20, are coupled to one another, the method characterized by performing, in the following order: a separating step for decoupling and separating the cyclone part 10, the chute part 20, and the spacer part 30 from one another; a first detaching step for detaching the spacer part 30; a second detaching step for using a gap D formed as a result of the first detaching step to detach the chute part 20 from the insertion port 61; a first attaching step for attaching and inserting a new chute part 80 into the insertion port 61; and a second attaching step for attaching the spacer part 30 between the new chute part 80 and the cyclone part 10.

Description

Method for Exchanging Shooter of Cyclone Shooter and Cyclone Shooter

[0001] The present invention relates to a method for exchanging a shooter of an insertion-type cyclone shooter inserted into a recovery unit and a cyclone shooter.

[0002] The shooter provided near the discharge port used in a cyclone shooter or the like is worn by colliding with an object that has fallen vigorously, and maintenance and replacement of the shooter are required.

[0003] Therefore, in Patent Document 1, a granular material discharge device that is easy to maintain is described by providing a replaceable cylindrical flexible sheet inside a cylindrical body that forms a discharge passage to prevent wear inside the cylindrical body by falling granular materials.

[0004] Japanese Patent Application Laid-Open No. 2002-128250

[0005] However, in the granular material discharge device described in Patent Document 1, when guiding crushed materials such as glass and pottery instead of granular materials, the flexible sheet is immediately torn and becomes unusable.

[0006] Further, when a hole appears in the shooter (cylindrical body) and the shooter is to be replaced, first, the connection with the frame that fixes the shooter is released, and the shooter needs to be lifted using a heavy machine and then replaced with a new shooter, which requires a lot of labor and time.

[0007] Therefore, the present invention has been made in view of the above circumstances, and an object thereof is to provide a method for safely exchanging a shooter of a cyclone shooter with less burden on an operator and a cyclone shooter.

[0008] The present invention relates to a method for replacing the chute of a cyclone chute, which is inserted into a recovery section, wherein the cyclone chute comprises a cyclone section fixed to a frame, a chute section inserted into an insertion port of the recovery section, and a spacer section having a thickness greater than the insertion depth of the chute section into the recovery section, and located between the cyclone section and the chute section, and the chute is connected to the cyclone section, the method is characterized by sequentially performing the following steps: a separation step of releasing the connection and separating the cyclone section, the chute section, and the spacer section; a first removal step of removing the spacer section; a second removal step of removing the chute section from the insertion port using the gap formed by the first removal step; a first intake step of taking in a new chute section and inserting it into the insertion port; and a second intake step of taking in the spacer section between the new chute section and the cyclone section.

[0009] The cyclone chute according to the present invention comprises a cyclone section fixed to a frame, a chute section inserted into the insertion port of a collection section, and a spacer section located between the cyclone section and the chute section. The cyclone section, the chute section, and the spacer section are each divisibly connected, and the thickness of the spacer section is greater than the insertion depth of the chute section into the collection section.

[0010] Furthermore, the length from the lower end of the cyclone section to the insertion port is longer than the height of the new chute section.

[0011] According to the present invention, in a cyclone chute in which a cyclone section, a chute section, and a spacer section are connected, after disconnecting the connection and separating the components, the spacer section is removed, creating a gap equal to the size of the spacer section. Since this gap is thicker than the insertion depth of the chute section into the collection section, the chute section can be removed and replaced with a new chute section.

[0012] Furthermore, it has a cyclone section fixed to the frame, a chute section that is inserted into the insertion port of the collection section, and a spacer section located between the cyclone section and the chute section. The cyclone section, chute section, and spacer section are each detachably connected, and the thickness of the spacer section is greater than the insertion depth of the chute section into the collection section. By removing the spacer section, the gap created allows the chute section to be removed and replaced with a new chute section.

[0013] Furthermore, since the length from the bottom end of the cyclone section to the insertion port is longer than the height of the chute section and the new chute section, the chute section can be removed and the new chute section can be installed.

[0014] This is a schematic front view of the cyclone chute according to the present invention. This is an enlarged front view of A in Figure 1. (a) A schematic diagram showing the splitting process. (b) A schematic diagram showing the first removal process. (a) A schematic diagram showing the second removal process. (b) A schematic diagram showing the spacer and chute parts removed. (a) A schematic diagram showing the first intake process. (b) A schematic diagram showing the first intake process and the connection process. This is a schematic perspective view of the spacer part.

[0015] The cyclone chute 100 and the method for replacing the chute of the cyclone chute 100 according to the present invention will be described in detail below with reference to the drawings.

[0016] [About the Cyclone Shooter 100] The cyclone shooter 100 is installed in crushing equipment for ceramics, glass mats, etc. When ceramics or glass mats are crushed by the crusher and turned into dust, the dust is sucked into the dust collector through the distribution path L, and the heavier fragments fall into the collection section 60 below and are collected by the cyclone shooter 100. This prevents the dust collector's filter from becoming clogged before the dust is sucked into the dust collector.

[0017] The cyclone shooter 100 in this embodiment mainly comprises a cyclone section 10, a shooter section 20, and a spacer section 30.

[0018] (Regarding the cyclone section 10) The cyclone section 10 is fixed to the frame 40 on all sides, its upper part is connected to the flow path L, and it sends debris to the chute section 20 located below it. Heavier debris flows into the cyclone section 10, while dust and powdery materials pass sideways without falling into the cyclone section 10 and flow through the flow path L.

[0019] As shown in Figures 1 and 2, the cyclone section 10 is a hollow cylindrical shape and has a tapered section 11 that narrows towards the bottom and a first flange section 12.

[0020] The tapered portion 11 comprises an upper tapered portion 11a and a lower tapered portion 11b, both of which are separable. The upper end of the upper tapered portion 11a is connected to the flow path L, and the lower end has an upper flange portion 11c that extends horizontally. The lower tapered portion 11b also has a lower flange portion 11d at its upper end, and the upper tapered portion 11a and the lower tapered portion 11b can be connected and fixed by connecting the upper flange portion 11c and the lower flange portion 11d.

[0021] The lower end of the lower tapered portion 11b is provided with a first flange portion 12 that extends horizontally for connection with the chute portion 20. The first flange portion 12 is provided with through holes at regular intervals for inserting connecting members 50 such as bolts. As shown in Figure 2, the distance H2 from the first flange portion 12, which is the lower end of the cyclone portion 10, to the insertion opening 61 of the recovery portion 60 is formed to be shorter than the sum of the height H3 of the chute portion 20 and the thickness H1 of the spacer portion 30. As a result, the chute portion 20 can be inserted into the insertion opening 61 of the recovery portion 60, preventing falling fragments from flying out from the side.

[0022] In this embodiment, the tapered portion 11 is divided into an upper tapered portion 11a and a lower tapered portion 11b, but it may be a single molded piece rather than divided. Also, the shape of the tapered portion 11 does not have to be tapered; it may be cylindrical as long as it is a plug-in type, and the structure and shape are not particularly limited.

[0023] (Regarding the chute section 20) The chute section 20 feeds heavy fragments sent from the cyclone section 10 to the recovery section 60. As shown in Figure 2, the chute section 20 has a cylindrical tube section 21 and a second flange section 22 that extends horizontally from the upper end of the tube section 21. The second flange section 22 is provided with through holes at regular intervals for inserting connecting members 50 such as bolts.

[0024] The area of ​​the insertion port 61 is formed to be larger than that of the cylindrical portion 21 and smaller than that of the second flange portion 22. The lower end of the cylindrical portion 21 is not fixed and is inserted into the insertion port 61 of the recovery portion 60. Even if there are slight dimensional errors during the manufacturing of the chute portion 20 or the cyclone portion 10, the insertion method without fixing the lower end allows for adjustment at the lower end. A sealant 70 is provided to fill the gap between the lower end of the cylindrical portion 21 and the insertion port 61.

[0025] As shown in Figure 2, the height H3 of the chute section 20 is formed to be shorter than the height H2 from the lower end of the cyclone section 10 to the insertion port 61. This eliminates the need to lift the cyclone section 10 upwards using a crane or the like, as will be described later. A new chute section 80 can be incorporated.

[0026] The chute section 20 is located at the bottom and has a small horizontal cross-sectional area, making it easy for heavy fragments to fall with force and hit the inner surface. As a result, the inner surface of the chute section 20 is a component that experiences severe wear.

[0027] The lower end of the chute section 20 is inserted into the insertion opening 61 of the chute section 20, and the insertion depth H4 is approximately 10 mm to 20 mm, preferably 15 mm. Furthermore, as mentioned above, a sealant 70 is provided between the insertion opening 61 and the outer circumference of the chute section 20 to prevent the formation of any gaps.

[0028] The chute section 20 is fixed to the cyclone section 10 only via the spacer section 30 at the second flange section 22, and is not fixed anywhere else. When the fixing of the second flange section 22 is released, the cylindrical section 21 of the chute section 20 is inserted into the insertion port 61, falls down, and gets caught on the insertion port 61 at the second flange section 22.

[0029] (Regarding the spacer portion 30) As shown in Figure 2, a disc-shaped spacer portion 30 is provided between the cyclone portion 10 and the chute portion 20. As shown in Figure 6, an insertion hole 31 for inserting a connecting member 50 such as a bolt and a flow hole 32 are provided.

[0030] The position of the insertion hole 31 is such that when the cyclone section 10, spacer section 30, and chute section 20 are stacked, the insertion hole of the first flange section 12 and the insertion hole of the second flange section 22 coincide. In this way, the cyclone section 10, spacer section 30, and chute section 20 are connected together by the connecting member 50. Furthermore, by removing the connecting member 50, the cyclone section 10, spacer section 30, and chute section 20 can be separated, respectively.

[0031] A flow hole 32 for passing fragments is provided approximately in the center of the spacer section 30. The shape and size of the flow hole 32 match the shape and size of the horizontal cross-section of the inner surface of the cyclone section 10 and the chute section 20. This ensures that fragments falling from the cyclone section 10 do not interfere with the chute section 20 and are instead guided to the chute section 20.

[0032] Furthermore, the thickness H1 of the spacer portion 30 is formed to be greater than the insertion depth H4 of the chute portion 20 into the collection portion 60. This allows the chute portion 20 to be removed using the gap D created after removing the spacer portion 30, as will be described later. This makes it possible to remove the chute portion 20 without lifting the cyclone portion 10 upwards, and to replace it with a new chute portion 80.

[0033] It is conceivable to replace the chute section 20 by lifting the cyclone section 10 upwards without using the spacer section 30, but since the lower tapered section 11b of the cyclone section 10 alone weighs about 250 kg, a crane would be needed to lift the cyclone section 10 upwards, and it would also be necessary to detach it from the frame 40, which would require manpower and time.

[0034] Furthermore, the recovery unit 60 is used to recover fragments and is usually fixed to the ground surface, making it difficult to adjust the height of the recovery unit 60.

[0035] Therefore, when replacing the chute section 20 in the cyclone chute 100, it is only necessary to replace the chute section 20 and the spacer section 30, which together weigh several tens of kilograms. As such, even with a small number of people, no special tools are required, and the replacement can be done easily and safely in a relatively short amount of time.

[0036] (Regarding other embodiments) In this embodiment, there is one spacer portion 30, but multiple spacers may be provided if necessary. Even if the height of the cylindrical portion 21 of the chute portion 20 changes, this can be accommodated by changing the number of spacer portions 30.

[0037] In this embodiment, the cyclone shooter 100 was positioned vertically, but it can be used similarly with a horizontally positioned cyclone shooter.

[0038] [Regarding the method for replacing the chute of the Cyclone Shooter 100] Next, we will explain how to replace the chute part of the Cyclone Shooter 100. The replacement method includes performing the following steps in order: a splitting step, a first removal step, a second removal step, a first intake step, a second intake step, and a connecting step.

[0039] (Regarding the disassembly process) First, as shown in Figure 3(a), the connecting member 50 that connects the cyclone section 10, the spacer section 30, and the chute section 20 is removed, and the cyclone section 10, the spacer section 30, and the chute section 20 are separated, respectively, in the disassembly process. If a sealant 70 is provided between the chute section 20 and the insertion port 61, the sealant 70 is removed before the disassembly process is carried out.

[0040] At this time, the shooter unit 20 is fixed only to the cyclone unit 10 via the spacer unit 30 and is not fixed to anything else. Therefore, after removing all eight connecting members 50, the spacer unit 30 is supported so that it does not fall into the insertion port 61 of the recovery unit 60.

[0041] (Regarding the first removal step) Subsequently, after performing the splitting step, the spacer unit 30 is in a state where it is not fixed to anything. Therefore, a first removal step can be performed in which only the spacer unit 30 is moved horizontally and removed.

[0042] Since the spacer unit 30 is about 10 kg, it can be easily removed manually without relying on machinery while another operator supports the shooter unit 20 and the spacer unit 30.

[0043] After that, when the spacer unit 30 is removed, as shown in Fig. 3(b), a gap D is formed by the thickness H1 of the spacer unit 30. Also, as described above, H1, which is the thickness of the spacer unit 30, is formed to be larger than the insertion depth H4 of the shooter unit 20.

[0044] (Regarding the second removal step) Therefore, as shown in Fig. 4(a), using the gap D, the shooter unit 20 can be lifted upward until it completely comes out of the insertion port 61, and then, in the same manner as the spacer unit 30, a second removal step can be performed in which it is moved horizontally and removed. After the second removal step, as shown in Fig. 4(b), the spacer unit 30 and the shooter unit 20 are in a state of not being present.

[0045] (Regarding the first insertion step) Subsequently, a first insertion step is performed in which a new shooter unit 80 is inserted. The new shooter unit 80 has the same shape and structure as the shooter unit 20 and is a new shooter unit 20 without wear or holes. As shown in Fig. 5(a), since the height H3 of the new shooter unit 80 is shorter than the distance H2 from the lower end of the lower tapered portion 11b to the insertion port 61, the new shooter unit 80 can be inserted horizontally from the gap D.

[0046] After inserting the new shooter part 80 from the side, insert the cylinder part 21 into the insertion port 61. This forms a gap above the shooter part 20 for later inserting the spacer part 30 from the side.

[0047] (Regarding the second insertion process) After the first insertion process, as shown in Fig. 5(b), perform the second insertion process of placing and inserting the spacer part 30 on the upper part of the new shooter part 80. At this time, place it so that the insertion hole 31 of the spacer part 30 and the insertion hole of the second flange part 22 of the shooter part 20 coincide.

[0048] (Regarding the connection process) After the second insertion process, perform the connection process of connecting the cyclone part 10, the new shooter part 80, and the spacer part 30 again. When connecting, insert a connecting member 50 such as a bolt or nut into the insertion hole and fix it.

[0049] When performing the connection, first insert only one connecting member 50 through the cyclone part 10, the spacer part 30, and the shooter part 20 and make a temporary fixation. With only one fixation, the spacer part 30 and the shooter part 20 are fixed in an obliquely inclined state.

[0050] Then, while an operator supports the spacer part 30 and the shooter part 20 so that they are in the horizontal direction, another operator inserts the connecting member 50 into the insertion hole on the opposite side of the temporarily fixed location and makes a temporary fixation. When two connecting members 50 are temporarily fixed, the spacer part 30 and the shooter part 20 are maintained in the horizontal direction.

[0051] Then, after temporarily fixing all the insertion holes with the connecting member 50, tighten each connecting member 50 to complete the connection process.

[0052] Through the above process, the replacement of the shooter of the cyclone shooter 100 is completed. Conventionally, when lifting the cyclone part 10 to replace the shooter part 20, after releasing the connection between the cyclone part 10 and the shooter part 20, it was necessary to lift the lower tapered part weighing more than 250 kg. However, by the method according to the present invention, it is possible to replace the shooter part only by the burden of releasing the connection between the cyclone part 10 and the shooter part 20 without the need to lift the cyclone part 10.

[0053] Therefore, no special tools are required, and the chute section 20 can be replaced by two workers using only common tools such as wrenches, in a short time of about 30 minutes. In addition, this not only shortens the construction period and reduces costs, but also enhances worker safety.

[0054] 100 Cyclone chute 10 Cyclone section 11 Tapered section 11a Upper tapered section 11b Lower tapered section 11c Upper flange section 11d Lower flange section 12 First flange section 20 Chute section 21 Cylinder section 22 Second flange section 30 Spacer section 31 Through hole 32 Flow hole 40 Frame 50 Connecting member 60 Recovery section 61 Insertion port 70 Caulking material 80 New chute section L Flow path D Gap H1 Thickness H2 Distance H3 Height H4 Insertion depth

Claims

1. A method for replacing the chute of a cyclone chute inserted into a recovery unit, wherein the cyclone chute comprises: a cyclone part fixed to a frame; a chute part inserted into an insertion port of the recovery unit; and a spacer part having a thickness greater than the insertion depth of the chute part into the recovery unit and located between the cyclone part and the chute part, all connected together; the method being characterized by sequentially performing the following steps: a separation step of releasing the connection and separating the cyclone part, the chute part, and the spacer part; a first removal step of removing the spacer part; a second removal step of removing the chute part from the insertion port using the gap formed by the first removal step; a first insertion step of taking in a new chute part and inserting it into the insertion port; and a second insertion step of taking in the spacer part between the new chute part and the cyclone part.

2. A cyclone chute comprising: a cyclone section fixed to a frame; a chute section inserted into the insertion port of a collection section; and a spacer section located between the cyclone section and the chute section, wherein the cyclone section, the chute section, and the spacer section are each divisibly connected, and the thickness of the spacer section is greater than the insertion depth of the chute section into the collection section.

3. The cyclone chute according to claim 2, characterized in that the length from the lower end of the cyclone section to the insertion port is longer than the height of the chute section and the new chute section.

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