Plug-in type shaftless screw conveyor

Abstract

The utility model relates to the technical field of sludge dewatering, in particular to a plug-in type shaftless screw conveyor. The device comprises a first shell and a second shell, the first shell and the second shell are detachably matched, a spiral piece is arranged in the first shell, a driving shaft is fixedly connected to the spiral piece, a driving mechanism is arranged on the side, away from the second shell, of the first shell, and the driving shaft extends out of the first shell to be connected with the driving mechanism. A sealing ring is arranged between the driving shaft and the first shell, so that the driving shaft and the first shell are matched in a sealing mode, a discharging pipe which is vertically arranged downwards is arranged on the first shell, a sealing valve is arranged at the lower end of the discharging pipe, and a lining plate used for protecting the spiral piece is arranged in the second shell. By means of the technical scheme, the problems that the lining plate of the shaftless screw conveyor is complex to replace, and the leakproofness of the shaftless screw conveyor is poor are solved.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering technology, specifically a plug-in shaftless screw conveyor. Background Technology

[0002] In modern urban wastewater treatment projects, the generated excess sludge needs to be concentrated and dewatered to reduce its volume and facilitate transportation and subsequent treatment. After sludge disposal, wastewater treatment plants generally have sludge silos, which are typically steel structures. Modern underground wastewater treatment plants have civil engineering sludge silos with corresponding facilities for sludge discharge and transportation, using screw conveyors for discharge, followed by connection to other sludge cake conveying equipment to transfer vehicles.

[0003] Due to the special structure and process requirements of the underground water plant, some civil engineering sludge silos have only a single-sided discharge hole near the bottom, and the process uses a shaftless screw conveyor for discharge. However, shaftless screw conveyors often require wear-resistant liners to protect the blades during operation, extend their service life, and also protect the civil engineering structure. The wear-resistant liners need to be replaced regularly.

[0004] Conventional civil engineering silos use wear-resistant conveyor liners installed on the civil structure. Later replacement requires personnel to enter the silo, which requires a lot of preparation work and is inconvenient for maintenance. In addition, civil engineering silos have certain requirements for the airtightness of the shaftless conveyor installed. Utility Model Content

[0005] In order to solve the problems in related technologies, this utility model provides a plug-in shaftless screw conveyor. This device solves the problems of cumbersome replacement of the liner plate and poor sealing of the shaftless screw conveyor.

[0006] To solve the above problems, the following technical solutions are provided:

[0007] This utility model discloses a plug-in shaftless screw conveyor, comprising a first housing and a second housing, which are detachably fitted together. A spiral blade is disposed inside the first housing, and a drive shaft is fixedly connected to the spiral blade. A drive mechanism is disposed on the side of the first housing away from the second housing. The drive shaft extends out of the first housing and is connected to the drive mechanism. A sealing ring is disposed between the drive shaft and the first housing, resulting in a sealed fit. A vertically downward-arranged discharge pipe is disposed on the first housing, and a sealing valve is disposed at the lower end of the discharge pipe. A liner for protecting the spiral blade is disposed inside the second housing.

[0008] In the above solution, the first and second housings are detachably connected. When replacing the liner, the liner can be removed simply by separating the first and second housings, thus solving the problem of cumbersome liner replacement for shaftless screw conveyors. This greatly reduces the difficulty of the work for the staff, improves work efficiency, and facilitates the maintenance of the internal structure of the first and second housings. The sealing performance of the shaftless screw conveyor is ensured by the setting of sealing rings and sealing valves.

[0009] The first housing is fixedly connected to a first flange at one end near the second housing, and the second housing is fixedly connected to a second flange that is compatible with the first flange at one end near the first housing.

[0010] In the above scheme, the first and second flanges are used to make the first housing and the second housing fixedly connected.

[0011] The first housing has a through hole at its upper end, and a connecting pipe is provided on the through hole. The bottom of the connecting pipe is fixedly connected to the first housing, and an observation window is hinged to the top of the connecting pipe. The observation window and the connecting pipe are rotated together.

[0012] In the above solution, the observation window allows for observation of the blockage when it occurs inside the shaftless screw conveyor, and the window can be opened to clear the blockage in the conveyor outlet pipe.

[0013] The second housing has a semi-circular cross-section, and a support ring is provided on the outer wall of the second housing. The support ring is fixedly engaged with the second housing.

[0014] In the above scheme, the support ring is used to fix and support the second shell, which is semi-circular.

[0015] The drive mechanism includes a motor, and the lead screw of the motor is fixedly connected to the drive shaft.

[0016] In the above scheme, by setting up the motor, turning on the motor causes the motor's lead screw to rotate, thereby driving the drive shaft to rotate.

[0017] The sealing ring is a packing ring.

[0018] In the above solution, a packing seal is used as the sealing ring. The packing seal can effectively isolate the fluid and prevent fluid leakage, thereby ensuring the stable operation of the shaftless screw conveyor, greatly reducing the risk of leakage and the frequency of maintenance, which helps to reduce costs and ensures the efficient operation of the shaftless screw conveyor.

[0019] The above solution has the following advantages:

[0020] 1. The present invention relates to a plug-in type shaftless screw conveyor comprising a first housing and a second housing, which are detachably fitted together. A spiral blade is disposed inside the first housing, and a drive shaft is fixedly connected to the spiral blade. A drive mechanism is disposed on the side of the first housing away from the second housing. The drive shaft extends out of the first housing and connects to the drive mechanism. A sealing ring is disposed between the drive shaft and the first housing, ensuring a sealed fit. A vertically downward-arranged discharge pipe is disposed on the first housing, and a sealing valve is disposed at the lower end of the discharge pipe. A liner for protecting the spiral blade is disposed inside the second housing. The detachable fit between the first and second housings allows for easy replacement of the liner by simply separating the first and second housings, thus solving the problem of cumbersome liner replacement in shaftless screw conveyors. This significantly reduces the workload for workers, improves work efficiency, and facilitates maintenance of the internal structures of the first and second housings. The sealing ring and sealing valve ensure the sealing performance of the shaftless screw conveyor.

[0021] 2. A through hole is provided at the upper end of the first housing, and a connecting pipe is installed on the through hole. An observation window is hinged to the top of the connecting pipe. When a blockage occurs inside the shaftless screw conveyor, the blockage can be observed through the observation window, and the blockage in the conveying outlet pipe can be cleared by opening the observation window. The sealing ring adopts a packing sealing ring, which can effectively isolate the fluid and prevent fluid leakage, thereby ensuring the stable operation of the shaftless screw conveyor, greatly reducing the risk of leakage and the frequency of maintenance, which helps to reduce costs and ensures the efficient operation of the shaftless screw conveyor. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of a plug-in shaftless screw conveyor.

[0024] Figure 2 This is a cross-sectional view of a plug-in shaftless screw conveyor;

[0025] Figure 3 This is an enlarged schematic diagram of part A in a plug-in shaftless screw conveyor;

[0026] Figure 4 This is an enlarged schematic diagram of part B in a plug-in shaftless screw conveyor;

[0027] Figure 5 This is a schematic diagram of the structure of the spiral blade in a plug-in shaftless screw conveyor;

[0028] Explanation of reference numerals in the attached drawings: 1. First housing; 2. Second housing; 3. Spiral blade; 4. Drive shaft; 5. Sealing ring; 6. Discharge pipe; 7. Sealing valve; 8. Liner; 9. First flange; 10. Second flange; 11. Connecting pipe; 12. Observation window; 13. Support ring; 14. Motor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In specific embodiment 1, such as Figure 1 , 2 As shown, the present invention provides a plug-in type shaftless screw conveyor comprising a first housing 1 and a second housing 2. A first flange 9 is fixedly connected to one end of the first housing 1 near the second housing 2, and a second flange 10 adapted to the first flange 9 is fixedly connected to one end of the second housing 2 near the first housing 1, thereby allowing the first housing 1 and the second housing 2 to be detachably coupled. Figure 5 As shown, a spiral blade 3 is provided inside the first housing 1, and a drive shaft 4 is fixedly connected to the spiral blade 3. A drive mechanism is provided on the side of the first housing 1 away from the second housing 2. The drive mechanism includes a motor 14. The drive shaft 4 extends out of the first housing 1 and is connected to the lead screw of the motor 14. When the motor 14 is turned on, the lead screw of the motor 14 rotates, thereby driving the drive shaft 4 to rotate, and finally driving the spiral blade 3 to rotate. Since the first housing 1 and the second housing 2 are detachably connected, when replacing the liner 8, it is only necessary to separate the first housing 1 and the second housing 2 to remove the liner 8. This makes the process of replacing the liner 8 of the shaftless screw conveyor simpler, greatly reduces the difficulty of the workers' work, improves work efficiency, and facilitates the maintenance of the inside of the first housing 1 and the second housing 2.

[0031] like Figure 1 As shown, a vertically downward-arranged discharge pipe 6 is provided on the first housing 1, and a sealing valve 7 is provided at the lower end of the discharge pipe 6; as Figure 3 As shown, a sealing ring 5 is provided between the drive shaft 4 and the first housing 1, so that the drive shaft 4 and the first housing 1 are sealed together. The sealing performance of the shaftless screw conveyor is ensured by the sealing ring 5 and the sealing valve 7.

[0032] like Figure 2 , 4As shown, a liner 8 for protecting the spiral blade 3 is provided inside the second housing 2. With the liner 8, the end of the spiral blade 3 is located inside the liner 8, which is beneficial for protecting the spiral blade 3.

[0033] The second housing 2 has a semi-circular cross-section, and a support ring 13 is provided on the outer wall of the second housing 2. The support ring 13 is fixedly engaged with the second housing 2 and is used to fix and support the semi-circular second housing 2.

[0034] In a specific embodiment 2, such as Figure 1 , 2 As shown, the difference between this embodiment and embodiment 1 is that the first housing 1 in this embodiment has a through hole at the upper end, and a connecting pipe 11 is provided on the through hole. The bottom of the connecting pipe 11 is fixedly connected to the first housing 1, and an observation window 12 is hinged to the top of the connecting pipe 11. The observation window 12 and the connecting pipe 11 are rotated together. When the shaftless screw conveyor is blocked, the blockage can be observed through the observation window 12, and the observation window 12 can be opened to clear the blockage in the conveying outlet pipe 6.

[0035] In a specific embodiment 3, such as Figure 1 , 2 As shown, the difference between this embodiment and embodiment 1 is that the sealing ring 5 in this embodiment is a packing ring. The packing ring can effectively isolate the fluid and prevent fluid leakage, thereby ensuring the stable operation of the shaftless screw conveyor, greatly reducing the risk of leakage and the frequency of maintenance, which is conducive to reducing costs and ensuring the efficient operation of the shaftless screw conveyor.

[0036] First, install the spiral blade 3 with drive shaft 4 inside the first housing 1, and install the liner 8 inside the second housing 2. Fit the first housing 1 onto the second housing 2 so that the end of the spiral blade 3 is inside the liner 8. Fix the sealing ring 5 and the sealing valve 7. Turn on the motor 14. The lead screw of the motor 14 drives the drive shaft 4 to rotate, thereby making the spiral blade 3 rotate. When the shaftless screw conveyor is blocked, the blockage can be observed through the observation window 12, and the blockage can be cleared by opening the observation window 12. The liner 8 will wear during operation and needs to be replaced regularly. When replacing, simply separate the first housing 1 and the second housing 2, pull out the spiral blade 3, and replace the liner 8 from the outside, which is convenient and quick.

[0037] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0038] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A plug-in type shaftless screw conveyor, characterized in that, The device includes a first housing (1) and a second housing (2), which are detachably fitted together. A spiral blade (3) is provided inside the first housing (1), and a drive shaft (4) is fixedly connected to the spiral blade (3). A drive mechanism is provided on the side of the first housing (1) away from the second housing (2). The drive shaft (4) extends out of the first housing (1) and is connected to the drive mechanism. A sealing ring (5) is provided between the drive shaft (4) and the first housing (1) so that the drive shaft (4) and the first housing (1) are fitted together in a sealed manner. A vertically downward-arranged discharge pipe (6) is provided on the first housing (1), and a sealing valve (7) is provided at the lower end of the discharge pipe (6). A liner (8) for protecting the spiral blade (3) is provided inside the second housing (2).

2. The insert-type shaftless screw conveyor as described in claim 1, characterized in that, The first housing (1) is fixedly connected to a first flange (9) at one end near the second housing (2), and the second housing (2) is fixedly connected to a second flange (10) that is compatible with the first flange (9) at one end near the first housing (1).

3. The insert-type shaftless screw conveyor as described in claim 1, characterized in that, The first housing (1) has a through hole at its upper end, and a connecting pipe (11) is provided on the through hole. The bottom of the connecting pipe (11) is fixedly connected to the first housing (1), and an observation window (12) is hinged to the top of the connecting pipe (11). The observation window (12) and the connecting pipe (11) are rotated together.

4. The insert-type shaftless screw conveyor as described in claim 1, characterized in that, The second housing (2) has a semi-circular cross-section, and a support ring (13) is provided on the outer wall of the second housing (2). The support ring (13) is fixedly engaged with the second housing (2).

5. A plug-in type shaftless screw conveyor as described in claim 1, characterized in that, The drive mechanism includes a motor (14), and the lead screw of the motor (14) is fixedly connected to the drive shaft (4).

6. A plug-in type shaftless screw conveyor as described in claim 1, characterized in that, The sealing ring (5) is a packing ring.

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