Dust bag fixing device and dust collecting device

Abstract

The application provides a dust bag fixing device and a dust collecting device, and relates to the technical field of chemical production. The dust bag fixing device comprises an upper pipeline and a lower pipeline; the bottom pipe opening of the upper pipeline is movably connected with the top pipe opening of the lower pipeline; a fixing mechanism is arranged; the fixing mechanism comprises an upper interlocking piece and a lower interlocking piece; the upper interlocking piece is arranged on the outer side of the bottom of the upper pipeline; the lower interlocking piece is arranged on the outer side of the top of the upper pipeline; the upper interlocking piece is movably connected with the lower interlocking piece; the upper interlocking piece and the lower interlocking piece are fixed to fix the dust bag between the upper pipeline and the lower pipeline; the edge of the dust bag is clamped between the upper pipeline and the lower pipeline; and the silicon powder flowing in the upper pipeline falls into the dust bag. The dust bag fixing device and the dust collecting device can improve the fixing efficiency of the dust bag and prevent the silicon powder from leaking.

Description

Technical Field

[0001] This application relates to the field of chemical production technology, and in particular to a dust bag fixing device and a dust collection device. Background Technology

[0002] In polysilicon production, the silicon powder carried in the reduction exhaust gas consists of high-purity silicon particles that have not been fully deposited on the silicon core. Direct emission of this powder not only wastes raw materials but also increases production costs. Therefore, an effective silicon powder collection method is needed to prevent silicon powder leakage and waste.

[0003] Currently, silicon powder collection is mostly done by two workers working together to attach dust bags to the discharge port of the silicon powder collection tank. Workers need to supervise the entire process until collection is complete. However, if silicon powder leaks during collection due to improper operation or damage to the dust bags, it can pose a safety hazard. Therefore, efficient methods for securing dust bags and preventing silicon powder leakage are needed. Utility Model Content

[0004] This application provides a dust bag fixing device and a dust collection device to solve the problems of low dust bag fixing efficiency and silicon powder leakage.

[0005] On one hand, this application provides a dust bag fixing device, including:

[0006] An upper pipe and a lower pipe; the bottom opening of the upper pipe and the top opening of the lower pipe are movably connected;

[0007] A fixing mechanism includes an upper interlocking component and a lower interlocking component. The upper interlocking component is located on the outer side of the bottom of the upper pipe. The lower interlocking component is located on the outer side of the top of the upper pipe. The upper interlocking component and the lower interlocking component are movably connected and fixed by the upper interlocking component and the lower interlocking component to fix the dust bag between the upper pipe and the lower pipe. The edge of the dust bag is sandwiched between the upper pipe and the lower pipe, and the silicon powder flowing down in the upper pipe falls into the dust bag.

[0008] In some possible implementations, the upper interlock component includes: a base plate and an interlock switch; the base plate is fixedly connected to the outer side of the bottom of the upper pipe; the interlock switch is movably connected to the bottom of the base plate.

[0009] In some possible implementations, the upper interlocking component further includes: a locking ring; and the interlocking component has left and right through holes at the middle position of the switch.

[0010] The two ends of the locking ring pass through the left and right through holes of the interlocking switch to be fixedly connected to the interlocking switch.

[0011] In some possible implementations, the lower interlocking component includes: a connecting portion and a hook body; the connecting portion is fixedly connected to the outer side of the top of the lower pipe; the hook body is bent towards the ground.

[0012] In some possible implementations, when the dust bag is fixed, the locking ring is fitted into the hook body, and the interlocking switch is mounted on the upper pipe wall via a rotating member to fix the dust bag between the upper pipe and the lower pipe.

[0013] In some possible implementations, it also includes:

[0014] An upper hinge is fixedly installed at the bottom of the upper pipe, symmetrically located on the outer side where the upper interlocking component is located, and a lower hinge is fixedly installed at the top of the lower pipe, symmetrically located on the outer side where the lower interlocking component is located. The upper hinge and the lower hinge are movably connected.

[0015] In some possible implementations, it further includes: an upper adhesive pad and a lower adhesive pad; the upper adhesive pad is bonded to the bottom opening of the upper pipe; and the lower adhesive pad is bonded to the top opening of the lower pipe.

[0016] In some possible implementations, it also includes: a support portion;

[0017] The support is located at the lower end of the bottom opening of the lower pipe, and is movably connected to the bottom of the lower pipe. The support is used to support the dust bag.

[0018] In some possible implementations, it also includes:

[0019] The lower interlocking components are fixedly installed on the symmetrical outer sides of the support portion;

[0020] The upper interlocking component is symmetrically arranged on the outer side of the bottom of the lower pipe.

[0021] An upper interlocking component located on the support is fixedly connected to an interlocking component located at the bottom of the lower pipe to secure the support and the lower pipe.

[0022] On the other hand, this application provides a dust collection device, comprising:

[0023] The dust bag fixing device and dust bag as described in the first aspect;

[0024] The dust bag is fixed inside the pipe formed between the upper pipe and the lower pipe in the dust bag fixing device, and the dust bag is used to collect the silicon powder flowing down in the upper pipe.

[0025] The dust bag fixing device and dust collection device provided in this application include: an upper pipe and a lower pipe; the bottom opening of the upper pipe and the top opening of the lower pipe are movably connected; a fixing mechanism including an upper interlock and a lower interlock; the upper interlock is located on the outer side of the bottom of the upper pipe; the lower interlock is located on the outer side of the top of the upper pipe, and the upper and lower interlocks are movably connected and fixed by the upper and lower interlocks to fix the dust bag between the upper and lower pipes. The edge of the dust bag is clamped between the upper and lower pipes, and the silicon powder flowing down in the upper pipe falls into the dust bag. The dust bag is placed inside the upper and lower pipes. Therefore, by fixing the dust bag in a sealed environment, silicon powder can be collected to prevent leakage. Furthermore, the bottom opening of the upper pipe and the top opening of the lower pipe are movably connected, allowing for easy movement of either pipe for quick dust bag installation. Moreover, simply fixing the upper and lower interlocking parts in the fixing mechanism quickly and stably secures the dust bag between the upper and lower pipes, making it easy to operate. Therefore, this improves the efficiency of dust bag fixing and prevents silicon powder leakage. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] Figure 1 This is a structural diagram of the dust bag fixing device provided in an embodiment of this application;

[0028] Figure 2 This is a structural diagram of the upper interlock component 13 provided in an embodiment of this application;

[0029] Figure 3 This is a structural diagram of the upper and lower hinges provided in an embodiment of this application;

[0030] Figure 4 This is a schematic diagram of a dust collection scenario.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10-Upper pipe; 11-Lower pipe; 12-Fixing mechanism; 13-Upper interlock; 14-Lower interlock; 15-Base plate; 16-Interlock switch; 17-Locking ring; 18-Connecting part; 19-Hook body; 20-Upper hinge; 21-Lower hinge; 22-Fixing device; 23-Upper rubber pad; 24-Lower rubber pad; 25-Support part.

[0033] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0035] In existing technologies, silicon powder collection mostly involves two workers working together to attach dust bags to the inlet of a silicon powder collection tank. The entire process is monitored by the workers. Before collection, workers must change into protective clothing and work together to attach the dust bags. During collection, workers must constantly monitor the process to detect leaks or other abnormalities. If a dust bag needs replacing, the collection tank must be stopped before two workers work together to attach the new bag. Furthermore, silicon powder collection must be performed every four hours, requiring significant time and manpower. Additionally, if leakage occurs due to improper operation or other reasons, the silicon powder can corrode the steel structure of the collection area and pose health risks. Therefore, the process suffers from low dust bag securing efficiency and silicon powder leakage problems.

[0036] Therefore, in order to address the aforementioned technical problems and improve the efficiency of silicon powder bag fixing and prevent silicon powder leakage, this application provides a dust bag fixing device. This device allows for the installation of a dust bag between an upper pipe and a lower pipe. Furthermore, by movably connecting the upper and lower pipes, the dust bag can be fixed in a closed environment. Additionally, by placing an upper interlocking member on the outer side of the bottom of the upper pipe and a lower interlocking member on the outer side of the top of the upper pipe, and then fixing the upper and lower interlocking members together, the dust bag between the upper and lower pipes can be secured, thus solving the problems of low silicon powder bag fixing efficiency and silicon powder leakage in the prior art.

[0037] Furthermore, when manual binding of dust bags is required or other situations arise where dust bags are difficult to secure, a dust bag securing device can be used to fix the dust bags. Optionally, the dust bag securing device can be located in a dust collection device, which is used in polysilicon production systems.

[0038] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0039] Figure 1 This is a structural diagram of the dust bag fixing device provided in the embodiments of this application, as shown below. Figure 1 As shown, it includes: an upper pipe 10, a lower pipe 11, and a fixing mechanism 12. The fixing mechanism 12 includes an upper interlocking component 13 and a lower interlocking component 14.

[0040] The top port of the upper pipe 10 is used to connect to the port of the dust collection equipment or the silicon powder collection tank, and the bottom port of the upper pipe 10 is used in conjunction with the lower pipe 11 to fix the dust bag.

[0041] The bottom opening of the lower pipe 11 can be in contact with the ground, or the distance from the ground can be less than the length of the dust bag, so as to provide support for the entire dust bag fixing device.

[0042] The upper pipe 10 and the lower pipe 11 are movably connected. This connection can be achieved by hinges, universal joints, or other movable connection methods, which are not specifically limited in this embodiment.

[0043] The fixing mechanism 12 refers to a structure used to fix the dust bag after fixing the upper pipe 10 and the lower pipe 11, and may include an upper interlocking member 13 and a lower interlocking member 14.

[0044] The upper interlocking component 13 is a structure fixed to the outside of the bottom of the upper pipe 10.

[0045] The lower interlock component 14 is a structure fixed to the outer side of the top of the lower pipe 11.

[0046] The lower interlocking member 14 and the upper interlocking member 13 are connected and used to fix the upper pipe 10 and the lower pipe 11, thereby fixing the dust bag between the upper pipe 10 and the lower pipe 11.

[0047] Specifically, the upper pipe 10 can be raised to a certain height first, and the edge of the dust bag opening can be installed at the top opening of the lower pipe 11, ensuring that the edges of the dust bag opening are completely flush with the top opening of the lower pipe 11. Then, the raised upper pipe 10 can be placed on the lower pipe 11 with the dust bag already installed, so that the dust bag is installed between the upper pipe 10 and the lower pipe 11. Finally, the upper interlocking member 13 can be rotated to achieve a fixed connection with the lower interlocking member 14 to fix the dust bag between the upper pipe 10 and the lower pipe 11. Alternatively, the upper interlocking member 13 and the lower interlocking member 14 can be fixed with screws to fix the dust bag between the upper pipe 10 and the lower pipe 11. Other methods can also be used to achieve a fixed connection between the upper interlocking member 13 and the lower interlocking member 14, which are not specifically limited in this embodiment.

[0048] Optionally, the upper interlocking component 13 can be a hinge, and the lower interlocking component 14 can also be a hinge. One end of each hinge is fixed to the outer side of the bottom of the upper pipe and the outer side of the top of the lower pipe, respectively. One end of each hinge is tightened with screws to fix the dust bag between the upper pipe 10 and the lower pipe 11.

[0049] Optionally, the upper interlocking component 13 can be a connecting ring, which is placed parallel to the ground and welded to the bottom of the upper pipe; the lower interlocking component 14 includes a steel chain and a hook; the length of the steel chain is such that the hook at the top of the lower pipe can fit into the connecting ring installed at the bottom of the upper pipe; one end of the steel chain is welded to the top of the lower pipe, and the other end of the steel chain is fixedly connected to the hook by welding; when it is necessary to fix the dust bag, the hook can be directly fitted onto the connecting ring; the upper interlocking component 13 can be a tower buckle structure, which may include a base plate, a locking switch, and a locking ring; the lower interlocking component can also be a hook structure, or other structures, which are not specifically limited in this embodiment.

[0050] The dust bag fixing device provided in this embodiment includes: an upper pipe 10 and a lower pipe 11; the bottom opening of the upper pipe 10 and the top opening of the lower pipe 11 are movably connected; by quickly fixing the dust bag through the upper pipe 10 and the lower pipe 11, it can ensure that the silicon powder is collected in a sealed environment to prevent silicon powder leakage; the dust bag fixing device also includes a fixing mechanism 12, which includes an upper interlocking member 13 and a lower interlocking member 14; the upper interlocking member 13 is disposed on the outer side of the bottom of the upper pipe 10; the lower interlocking member 14 is disposed on the outer side of the top of the upper pipe 10. On the side, the upper interlocking member 13 and the lower interlocking member 14 are movably connected and fixed by the upper interlocking member 13 and the lower interlocking member 14 to fix the dust bag between the upper pipe 10 and the lower pipe 11. The edge of the dust bag is sandwiched between the upper pipe 10 and the lower pipe 11. The silicon powder flowing down in the upper pipe 10 falls into the dust bag. Therefore, by fixing the upper interlocking member 13 and the lower interlocking member 14 in the fixing mechanism 12, the dust bag between the upper pipe 10 and the lower pipe 11 can be fixed quickly and stably. Thus, the dust bag fixing efficiency can be improved and silicon powder leakage can be prevented.

[0051] As an alternative implementation method, Figure 2 This is a structural diagram of the upper interlock component 13 provided in an embodiment of this application; as shown below. Figure 2 The upper interlock component 13 includes: a base plate 15 and an interlock switch 16; the base plate 15 is fixedly connected to the bottom outer side of the upper pipe 10; the interlock switch 16 is movably connected to the bottom of the base plate 15.

[0052] The base plate 15 is a structure used to fix the upper interlocking component 13 to the upper pipe 10. It can be an aluminum alloy die-cast base plate or a stainless steel base plate. The base plate 15 is only illustrative and can also be a base plate of other shapes or materials. This embodiment does not limit the type of base plate. Optionally, the base plate 15 can be welded to the outer bottom of the upper pipe 10. Alternatively, the base plate 15 can be fixedly connected to the outer bottom of the upper pipe 10 in other ways. This embodiment does not limit the specific type of base plate.

[0053] The interlocking switch 16 is a control structure used to quickly fix the upper interlocking component 13 and the lower interlocking component 14. When the upper interlocking component 13 and the lower interlocking component 14 are not fixed, the top of the interlocking switch 16 is placed vertically downwards.

[0054] The interlocking switch 16 can be a rigid structure or other structures. Its specific shape is not specifically limited in this embodiment and can be set according to requirements.

[0055] The interlocking switch 16 and the bottom of the base plate 15 can be connected by a rotating joint, a shaft hole rotation connection, a ball joint universal connection, or a slide rail translation connection, or other movable connection methods. This embodiment does not impose any specific limitations.

[0056] For example, the interlock switch 16 can be connected to the outside of the base plate 15 by a connecting rod and a cylindrical pin; the interlock switch 16 can be connected to the outside of the base plate 15 by a cylindrical pin, so that the interlock switch 16 can be adjusted at multiple angles or rotated around the axis. Specifically, the two outer sides of the bottom of the base plate 15 and the two outer sides of the bottom of the interlocking switch 16 are provided with through holes of the same diameter as the cylindrical pin. The connecting rod is also provided with two through holes of the same size as the through holes of the cylindrical pin. Then, one end of the cylindrical pin can be inserted and fixed into one of the through holes on the outer side of the bottom of the base plate 15. The other end of the cylindrical pin of the connecting rod is inserted into one of the through holes of the connecting rod. Before connecting the upper interlocking switch 13 to the connecting rod, the upper interlocking switch 13 and the base plate 15 need to be at a certain angle in advance according to the actual installation space and operation requirements. For example, if the angle between the upper interlocking switch 13 and the base plate 15 is set to 180 degrees, then one end of a new cylindrical pin is connected to the other through hole of the connecting rod, and the other end of the new cylindrical pin is inserted into the through hole at the bottom of the outer side of the upper interlocking switch 13. In this way, the two outer sides of the interlocking switch 16 can be connected to the two outer sides of the base plate 15 respectively by means of the cylindrical pin. After the above installation is completed, the interlock switch 16 can rotate around the cylindrical pin axis at different angles. The cylindrical pin axis refers to a virtual straight line passing through the geometric center of the cylindrical pin and parallel to the generatrix of the cylindrical surface; it is the rotational symmetry axis of the cylindrical pin in space.

[0057] Optionally, a circular locating pin can be provided at the upper center of the base plate 15. After the interlock switch 16 is rotated 180 degrees upward counterclockwise, a pin hole can be provided at the position of the interlock switch 16. When the interlock switch 16 is rotated 180 degrees upward counterclockwise, the locating pin at the upper center of the base plate 15 can be inserted into the pin hole at the position of the interlock switch 16 to ensure that the interlock switch 16 is dislodged when rotated 180 degrees upward counterclockwise. Alternatively, the interlock switch 16 can be fixed in other ways, which are not specifically limited in this embodiment.

[0058] In this embodiment, the upper interlock component 13 includes: a base plate 15 and an interlock switch 16; the base plate 15 is fixedly connected to the outer bottom of the upper pipe 10; the interlock switch 16 is movably connected to the bottom of the base plate 15. By setting the base plate 15, the upper interlock component 13 can be fixed to the outer bottom of the upper pipe 10, and the interlock switch 16 can be movably connected to the bottom of the base plate 15, allowing the interlock switch 16 to rotate arbitrarily, thus improving the flexibility of the upper interlock component operation and facilitating the quick and flexible application of the interlock switch 16 for subsequent rapid fixing of the dust bag.

[0059] As an optional implementation, the upper interlocking member 13 further includes: a locking ring 17; a left and right through hole is provided at the middle position of the interlocking member switch 16; the two ends of the locking ring 17 pass through the left and right through holes of the interlocking member switch 16 to be fixedly connected to the interlocking member switch 16.

[0060] The locking ring 17 is a structure used to connect the upper interlocking member 13 and the lower interlocking member 14. It is not limited to the structure shown in Figure 1, and can be set to other structures as needed. No specific limitation is made in this embodiment.

[0061] Specifically, the two ends of the locking ring 17 are respectively inserted through the left and right through holes in the middle of the interlocking switch 16, and the locking ring 17 inserted through the left and right through holes in the middle of the interlocking switch can be fixed by screws or welding.

[0062] In this embodiment, the upper interlocking component 13 further includes a locking ring 17; a left and right through hole is provided at the middle position of the interlocking component switch 16; both ends of the locking ring 17 pass through the left and right through holes of the interlocking component switch 16 to be fixedly connected with the interlocking component switch 16; therefore, when the locking ring 17 is fixedly connected with the interlocking component switch 16, the locking ring 17 can move with the movement of the interlocking component switch 16; thus, the movement of the locking ring 17 can be synchronously controlled by the movement of the interlocking component switch 16.

[0063] As an alternative implementation, the lower interlocking member 14 includes: a connecting part 18 and a hook body 19; the connecting part 18 is fixedly connected to the outer side of the top of the lower pipe 11; the hook body 19 is bent toward the ground.

[0064] The connecting part 18 is used to fix the hook body to the lower pipe 11. The connecting part 18 can be a rigid base plate or a structure of other shapes. In this embodiment, no specific limitation is made.

[0065] Optionally, the connecting part 18 may include a through hole, so that the connecting part 18 can be fixedly connected to the outer side of the top of the lower pipe 11 by means of screws or welding.

[0066] The hook 19 serves as an interlocking component of the lower pipe 11 and is used in conjunction with the locking ring 17 to fix the dust bag between the upper pipe 10 and the lower pipe 11.

[0067] Specifically, the hook 19 can be bent toward the ground, and then one end of the hook 19 can be welded to the connecting part 18 to fix the hook 19 to the outside of the top of the lower pipe 11 and bend toward the ground.

[0068] In this embodiment, the lower interlocking component 14 includes a connecting part 18 and a hook body 19; the connecting part 18 is fixedly connected to the outer side of the top of the lower pipe 11; the hook body 19 is bent towards the ground. Therefore, using the connecting part 18 and the hook body 19 as the lower interlocking component 14 results in a simple structure and easy operation.

[0069] As an alternative implementation, when the dust bag is fixed, the locking ring 17 is fitted into the hook body 19, and the interlocking switch 16 is fixed on the wall of the upper pipe 10 by the rotating member to fix the dust bag between the upper pipe 10 and the lower pipe 11.

[0070] The rotating component is a structure used to realize the rotation of the interlock switch. It can be a cylindrical pin or a rotary buckle, depending on the setting and connection structure between the interlock switch and the base plate. This embodiment does not impose specific limitations on it.

[0071] Specifically, when using the upper pipe 10 and lower pipe 11 to fix the dust bag, the locking ring 17 can first be put onto the hook body 19 to connect the upper interlocking part 13 and the lower interlocking part 14. It can be randomly put on as needed, and its position on the hook body 19 is not fixed. Then, the top of the interlocking part switch 16 can be lifted and rotated 180 degrees counterclockwise around the axis of the cylindrical pin. At this time, the bottom of the interlocking part switch 16 faces the ground; when the top of the interlocking part switch 16 rotates counterclockwise... After 180 degrees, the positioning pin at the middle position of the base plate 15 can be inserted into the pin hole at the position of the interlock switch 16 to fix the interlock switch 16 after it has rotated 180 degrees counterclockwise; and when the top of the interlock switch 16 rotates 180 degrees counterclockwise, the locking ring 17 connected to the interlock switch 16 also moves to the corresponding position on the hook body 19 and forms a fixed connection with the hook body 19, thereby fixing the dust bag between the upper pipe 10 and the lower pipe 11.

[0072] In this embodiment, when the dust bag is fixed, the locking ring 17 is fitted onto the hook body 19, and the interlocking switch 16 is rotated and fastened to the wall of the upper pipe 10 to fix the dust bag between the upper pipe 10 and the lower pipe 11. Therefore, by simply fitting the locking ring 17 onto the hook body 19 and rotating the interlocking switch 16, the dust bag between the upper pipe 10 and the lower pipe 11 can be fixed. This method is efficient and easy to operate, and the locking ring 17 and the hook body 19 can be tightly fixed as needed.

[0073] As an alternative implementation method, Figure 3 The upper and lower hinge structure diagrams provided in the embodiments of this application are as follows: Figure 3As shown, it also includes: an upper hinge 20 fixedly installed at the bottom of the upper pipe 10 symmetrically with the outer side where the upper interlocking member 13 is provided, and a lower hinge 21 fixedly installed at the top of the lower pipe 11 symmetrically with the outer side where the lower interlocking member 14 is provided, with the upper hinge 20 and the lower hinge 21 being movably connected.

[0074] The upper hinge 20 can be a hinge fixed to the bottom of the upper pipe 10.

[0075] The lower hinge 21 can be a hinge fixed to the top of the lower pipe 11.

[0076] The upper hinge 20 and the lower hinge 21 can be sheet-like structures made of metal. Specifically, one end of the upper hinge 20 can be welded to the bottom of the upper pipe 10, and one end of the lower hinge 21 can be welded to the top of the lower pipe 11. Alternatively, they can be fixed with screws. This embodiment does not impose any specific limitations.

[0077] The system also includes a retainer 22 for fixing the upper hinge piece 20 and the lower hinge piece 21. The retainer 22 may include two reinforcing plates; one end of each reinforcing plate can be welded to the middle of the upper hinge piece 20 and the lower hinge piece 21, respectively; the reinforcing plates can enhance the stability, load-bearing capacity, and durability of the hinge installation. At least two through holes are provided at the same position on the other end of each reinforcing plate; the cylindrical pin of each reinforcing plate can pass through the two through holes at the same position, so that the two hinge pieces can be arbitrarily selected around the central axis of the cylindrical pin, thereby realizing the movable connection between the upper hinge piece and the lower hinge piece 21. Other movable connection methods are also possible, such as bearing-assisted rotation connection. This embodiment is only illustrative and is not specifically limited.

[0078] Understandably, when fixing the dust bag, since the upper hinge 20 and the lower hinge 21 are movably connected, the upper pipe 10 or the lower pipe 11 can be raised to a certain height to separate the upper pipe 10 and the lower pipe 11, and the edge of the dust bag opening can be installed on the top opening of the lower pipe 11. When it is necessary to completely separate the upper pipe 10 and the lower pipe 11 before installing the dust bag, the cylindrical pin of the fixing device 22 can be removed. Moreover, when it is necessary to completely fix one end of the upper pipe 10 and the lower pipe 11 connecting the hinge, the cylindrical pin can be fixed to completely fix one end of the upper pipe 10 and the lower pipe 11 connecting the hinge.

[0079] In this embodiment, an upper hinge 20 is fixedly installed at the bottom of the upper pipe 10 symmetrically on the outer side where the upper interlocking member 13 is provided, and a lower hinge 21 is fixedly installed at the top of the lower pipe 11 symmetrically on the outer side where the lower interlocking member 14 is provided, and the upper hinge 20 and the lower hinge 21 are movably connected; this method can fix one end of the lower pipe 11 and the upper pipe 10. This method is simple to operate, and the hinges that are movably connected can be set, adjusted or disassembled as needed. Therefore, it provides an efficient way to fix one end of the lower pipe 11 and the upper pipe 10, and can also further speed up the efficiency of fixing the dust bag.

[0080] As an optional implementation, it also includes: an upper adhesive pad 23 and a lower adhesive pad 24; the upper adhesive pad 23 is bonded to the bottom opening of the upper pipe 10; and the lower adhesive pad 24 is bonded to the top opening of the lower pipe 11.

[0081] Specifically, two rubber pads of a certain thickness and the same shape and size as the pipe opening can be selected. One of the rubber pads can be used as the upper rubber pad 23 and bonded to the bottom opening of the upper pipe 10 using epoxy resin adhesive or polyurethane adhesive. The other rubber pad can be used as the lower rubber pad 24 and bonded to the top opening of the upper pipe 10 using epoxy resin adhesive or polyurethane adhesive.

[0082] In this embodiment, it also includes: an upper adhesive pad 23 and a lower adhesive pad 24; the upper adhesive pad 23 is bonded to the bottom opening of the upper pipe 10; the lower adhesive pad 24 is bonded to the top opening of the lower pipe 11; the adhesive pad can fill the gap when the upper pipe 10 and the lower pipe 11 come into contact by its elastic deformation, so as to prevent leakage when collecting dust; furthermore, the adhesive pad can also play a buffering role to prevent the dust bag from directly contacting the opening of the upper pipe 10 and the opening of the lower pipe 11, so as to prevent damage to the dust bag.

[0083] As an optional implementation, it further includes: a support part 25; the support part 25 is located at the lower end of the bottom opening of the lower pipe 11, the support part 25 is movably connected to the bottom of the lower pipe 11, and the support part 25 is used to support the dust bag.

[0084] Optionally, the support portion 25 can be a rigid cylindrical structure, wherein the radius of the upper base of the circle in the cylinder can be the same as the radius of the outer circle of the lower pipe 11. It is understood that the above is merely illustrative, and the size, structure, and materials used for the support portion 25 are not specifically limited.

[0085] Optionally, the movable connection can be a threaded locking movable connection, a guide rail sliding connection, a universal ball joint double support connection, or other movable connection methods. This embodiment does not impose any specific limitations.

[0086] In this embodiment, a support portion 25 is also included. The support portion 25 is located at the lower end of the bottom opening of the lower pipe 11 and is movably connected to the bottom of the lower pipe 11. The support portion 25 is used to support the dust bag. After the support portion 25 is movably connected to the lower end of the bottom opening of the lower pipe 11, when dust is collected, the support portion 25 provides support for the dust bag after the dust falls into it, so that the dust bag is not easily damaged by the dust falling in, thus affecting dust collection. Moreover, even if the dust bag is damaged, the support portion 25 and the lower pipe 11 together form a sealed environment, which can prevent the dust bag from being directly exposed to the environment.

[0087] As an optional implementation, it further includes: lower interlocking members are fixedly provided on the symmetrical outer sides of the support portion 25; upper interlocking members are provided on the symmetrical outer sides of the bottom of the lower pipe 11; the lower interlocking members provided on the support portion 25 are fixedly connected to the upper interlocking members provided at the bottom of the lower pipe to fix the support portion 25 and the lower pipe 11. For example, the base plate, interlocking switch, and locking ring, consistent with the above embodiments, can be used as structures in the upper interlocking component. The base plate can be fixed to the pipe opening at the bottom of the lower pipe 11 by welding. The connection method of the base plate, interlocking switch, and locking ring is consistent with the above embodiments, and will not be repeated in this embodiment. The connecting part and hook body, consistent with the above embodiments, can be used as the lower interlocking component. The connecting part can be fixed to the top outer side of the support part 25. The connection method of the connecting part and hook body is consistent with the above embodiments, and will not be repeated in this embodiment. The upper interlocking components configured as described above can be fixed to the symmetrical outer side of the bottom of the lower pipe 11. The lower interlocking components configured as described above can be fixed to the symmetrical outer side of the top of the support part 25 for fixed connection between the support part 25 and the lower pipe 11.

[0088] Optionally, a circular locating pin can be provided at the center of the base plate, and a pin hole can be provided at the position of the interlock switch after rotating the interlock switch upward counterclockwise by 180 degrees.

[0089] Specifically, the lower pipe 11 can be placed on the support 25. The hooks in the lower interlocking parts on both sides of the top of the support 25 can be put into the locking rings in the upper interlocking parts on both sides of the bottom of the lower pipe. The top of the interlocking switch on the outside of the lower pipe 11 can be lifted and rotated 180 degrees counterclockwise. At this time, the bottom of the interlocking switch faces the ground. After the top of the interlocking switch is rotated 180 degrees counterclockwise, the positioning pin on the middle of the base plate can be inserted into the pin hole at the position of the interlocking switch to fix the interlocking switch after it has been rotated 180 degrees counterclockwise. Moreover, after the top of the interlocking switch is rotated 180 degrees counterclockwise, the locking ring connected to the interlocking switch also moves to the corresponding position on the hook and forms a fixed connection with the hook, thereby fixing the support 25 and the lower pipe 11.

[0090] Optionally, the upper interlocking structure can also be an upper hinge, and the lower interlocking structure can also be a lower hinge. The connection method between the upper hinge and the bottom outer side of the upper pipe, and the lower hinge and the top outer side of the lower pipe 11 in the above embodiments will not be repeated in this embodiment. The upper hinge and the lower hinge can be fixedly connected by screws to fix the support part 25 and the lower pipe 11. Other upper and lower interlocking structures can also be used to fix the support part 25 and the lower pipe 11, which are not specifically limited in this embodiment.

[0091] In this embodiment, lower interlocking members are fixedly installed on the symmetrical outer sides of the support portion 25; upper interlocking members are installed on the symmetrical outer sides of the bottom of the lower pipe 11; the lower interlocking members installed on the support portion 25 are fixedly connected to the upper interlocking members installed at the bottom of the lower pipe 11 to fix the support portion 25 and the lower pipe 11. Fixing the support portion 25 and the lower pipe 11 with the upper and lower interlocking members is easy to operate and can achieve a tight fixation between the support portion 25 and the lower pipe 11.

[0092] This application provides a dust collection device, including: a dust bag fixing device and a dust bag; the dust bag is fixed in the pipe formed between the upper pipe 10 and the lower pipe 11 in the dust bag fixing device, and the dust bag is used to collect silicon powder flowing down in the upper pipe 10.

[0093] The dust bag can be a ton bag, a flexible container bag, or other bags used to hold dust; no specific limitation is made in this embodiment.

[0094] Specifically, such as Figure 4 This is a schematic diagram of a dust collection scenario, including a dust collection tank 401 and a dust collection device 402. First, the upper pipe 10 in the dust collection device 402 can be raised to a certain height, and the edge of the dust bag opening can be installed at the top opening of the lower pipe 11, ensuring that the edges of the dust bag opening are completely flush with the top opening of the lower pipe 11. Then, the raised upper pipe 10 can be placed on the lower pipe 11 with the dust bag already installed to fix the dust bag between the upper and lower pipes 11. Finally, the top opening of the upper pipe 10 in the dust bag fixing device with the dust bag installed is connected to the silicon powder collection tank 401. The operator opens the valve in the opening of the silicon powder collection tank 401, and the silicon powder falls into the pipe formed between the upper pipe 10 and the lower pipe 11, entering the dust bag.

[0095] In this embodiment, a dust collection device includes: a dust bag fixing device and a dust bag; the dust bag is fixed in the pipe formed between the upper pipe 10 and the lower pipe 11 in the dust bag fixing device, and the dust bag is used to collect silicon powder flowing down in the upper pipe 10; the dust bag fixing device can be used to quickly fix the dust bag, and the dust bag collects the flowing silicon powder in the sealed environment in the upper pipe 10, which can effectively prevent silicon powder from leaking.

[0096] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0097] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A dust bag fixing device, characterized in that, include, Upper pipe (10) and lower pipe (11); the bottom opening of the upper pipe (10) is movably connected to the top opening of the lower pipe (11); The fixing mechanism (12) includes an upper interlocking member (13) and a lower interlocking member (14); the upper interlocking member (13) is disposed on the outer side of the bottom of the upper pipe (10); the lower interlocking member (14) is disposed on the outer side of the top of the upper pipe (10), the upper interlocking member (13) and the lower interlocking member (14) are movably connected and fixed by the upper interlocking member (13) and the lower interlocking member (14) to fix the dust bag between the upper pipe (10) and the lower pipe (11), the edge of the dust bag is sandwiched between the upper pipe (10) and the lower pipe (11), and the silicon powder flowing down in the upper pipe (10) falls into the dust bag.

2. The dust bag fixing device according to claim 1, characterized in that, The upper interlock component (13) includes: a base plate (15) and an interlock switch (16); the base plate (15) is fixedly connected to the outer bottom of the upper pipe (10); the interlock switch (16) is movably connected to the bottom of the base plate (15).

3. The dust bag fixing device according to claim 2, characterized in that, The upper interlocking component (13) further includes: a locking ring (17); the interlocking component switch (16) is provided with left and right through holes at the middle position; The two ends of the locking ring (17) pass through the left and right through holes of the interlocking switch (16) to be fixedly connected to the interlocking switch (16).

4. The dust bag fixing device according to claim 3, characterized in that, The lower interlocking component (14) includes a connecting part (18) and a hook body (19); the connecting part (18) is fixedly connected to the outer side of the top of the lower pipe (11); the hook body (19) is bent toward the ground.

5. The dust bag fixing device according to claim 4, characterized in that, When the dust bag is fixed, the locking ring (17) is fitted into the hook body (19), and the interlocking switch (16) is fixed on the wall of the upper pipe (10) by the rotating part to fix the dust bag between the upper pipe (10) and the lower pipe (11).

6. The dust bag fixing device according to claim 1, characterized in that, Also includes: An upper hinge (20) is fixedly installed at the bottom of the upper pipe (10) on the outer side symmetrical to the upper interlocking member (13), and a lower hinge (21) is fixedly installed at the top of the lower pipe (11) on the outer side symmetrical to the lower interlocking member (14). The upper hinge (20) and the lower hinge (21) are movably connected.

7. The dust bag fixing device according to claim 1, characterized in that, Also includes: Upper adhesive pad (23) and lower adhesive pad (24); the upper adhesive pad (23) is bonded to the bottom opening of the upper pipe (10); the lower adhesive pad (24) is bonded to the top opening of the lower pipe (11).

8. The dust bag fixing device according to claim 1, characterized in that, Also includes: Support section (25); The support part (25) is located at the lower end of the bottom opening of the lower pipe (11). The support part (25) is movably connected to the bottom of the lower pipe (11). The support part (25) is used to support the dust bag.

9. The dust bag fixing device according to claim 8, characterized in that, Also includes: The lower interlocking member is fixedly provided on the symmetrical outer side of the support part (25); The upper interlocking component is symmetrically provided on the outer side of the bottom of the lower pipe (11); The upper interlocking member provided on the support part (25) is fixedly connected to the lower interlocking member provided at the bottom of the lower pipe (11) to fix the support part (25) and the lower pipe (11).

10. A dust collection device, characterized in that, include: Dust bag fixing device and dust bag as described in any one of claims 1-9; The dust bag is fixed inside the pipe formed between the upper pipe (10) and the lower pipe (11) in the dust bag fixing device. The dust bag is used to collect the silicon powder flowing down in the upper pipe (10).

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