Alignment type anti-fracture feeding device

Abstract

The utility model discloses an alignment type anti-fracture feeding device. The alignment type anti-fracture feeding device comprises a feeding pipe, a connecting flange and a clamping seat, the clamping seat is fixedly connected with the bearing seat, the connecting flange is connected to the side, close to the feeding port, of the feeding pipe, a positioning hole is formed in one side of the top of the connecting flange, and a matching hole is formed in one side of the top of the clamping seat; the clamping seat comprises a fixed seat and a clamping part, the fixed seat is fixedly connected with the bearing seat, and the clamping part is connected to the bottom of the fixed seat through a locking bolt; a clamping hole is formed in the fixed seat, a first semicircular groove is formed in front of the clamping hole, a second semicircular groove is formed in the top of the clamping part, the first semicircular groove and the second semicircular groove are combined to form the clamping hole, the feeding pipe is inserted into the clamping hole, and the coaxiality of the feeding pipe after installation can be ensured; the feeding pipe can be fixed through clamping of the clamping holes; the positioning holes and the matching holes are connected through screws for positioning, the feeding pipe can be further fixed, and it is ensured that the feeding pipe and the clamping base do not displace; and the mounting and dismounting processes of the feeding pipe become simpler and quicker.

Description

Technical Field

[0001] This utility model belongs to the field of centrifuge technology, specifically a centering anti-breakage feeding device. Background Technology

[0002] A horizontal screw centrifuge is a device that uses centrifugal force to separate liquids and solids, and is widely used in industries such as chemical, food, pharmaceutical, environmental protection, and wastewater treatment. Its working principle involves a rotating drum and a screw conveyor running at high speed in the same direction with a certain differential speed. Material continuously enters the inner cavity of the drum through the feed pipe. Under the action of centrifugal force, materials of different densities separate into layers. The denser solid phase settles on the inner wall of the drum, forming a solid ring on the outer side, which is continuously discharged from the machine by the screw conveyor. The less dense liquid phase forms a liquid ring on the inner side and is discharged from the machine through the overflow port, thus achieving solid-liquid separation. The feed pipe of a horizontal screw centrifuge is a pipe used to introduce the suspension to be treated into the equipment.

[0003] Traditional centrifuge feed pipes are connected to the centrifuge via large flanges to ensure the coaxiality and perpendicularity requirements between the feed pipe and the rotating components. However, using large flanges to connect and fix the feed pipe results in a large welding area, which can lead to changes in the material and affect its strength and hardness. Additionally, residual stress remains inside after welding. During use, stress concentration is likely to occur at the flange root on the feed pipe, which can cause the feed pipe to break.

[0004] Patent CN112642595A discloses a feed pipe structure, processing technology, and a horizontal screw centrifuge. The feed pipe's mounting flange mates with the bearing outer ring cap stop and is then bolted together. The feed pipe is entirely fixed by the flange, a structure that easily leads to stress concentration at the flange root, making the feed pipe prone to breakage during use. Utility Model Content

[0005] The purpose of this invention is to provide a aligning and anti-breakage feeding device to solve the following technical problems mentioned in the background art:

[0006] The feed pipe of a conventional centrifuge is connected to the centrifuge via a large flange. During use, stress concentration occurs at the root of the flange on the feed pipe, which can lead to the feed pipe breaking.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A aligning anti-breakage feeding device is provided, which is connected to the bearing housing of the solid end of a horizontal screw centrifuge. The aligning anti-breakage feeding device includes a feeding pipe, a connecting flange, and a clamping seat. The clamping seat is fixedly connected to the bearing housing, and the connecting flange is connected to the side of the feeding pipe near the feed inlet. A positioning hole is provided on the top side of the connecting flange, and a mating hole is provided on the top side of the clamping seat. The clamping seat includes a fixed seat and a clamping part. The fixed seat is fixedly connected to the bearing housing, and the clamping part is connected to the bottom of the fixed seat by a locking bolt. A first semi-circular groove is provided at the bottom of the fixed seat, and a second semi-circular groove is provided at the top of the clamping part. The first semi-circular groove and the second semi-circular groove are combined to form a clamping hole, and the feeding pipe is inserted into the clamping hole.

[0009] Furthermore, several annular protrusions are provided on the side of the feed pipe away from the connecting flange.

[0010] Furthermore, at least four annular protrusions are provided on the feed pipe.

[0011] Furthermore, a water drain is provided on the side of the card holder near the bearing seat.

[0012] Furthermore, a connector is provided at the inlet end of the feed pipe.

[0013] Furthermore, a flushing pipe is installed inside the feed pipe.

[0014] Furthermore, the inlet end of the flushing pipe is fixed with a water inlet head, which forms an L-shaped structure after being connected to the water inlet pipe. The water inlet head penetrates the wall of the feed pipe and extends out of the feed pipe.

[0015] Furthermore, the flushing pipe has several flushing holes evenly spaced along the axial direction on the side near the outlet end, and the feed pipe has several through holes that cooperate with the flushing holes.

[0016] Furthermore, set screw holes are provided on both sides of the connecting flange.

[0017] Furthermore, the fixed seat and the bearing seat are connected by bolts.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In this invention, the feed pipe is connected to the clamping seat via a flange. The clamping seat is designed as a clamping structure, and the connecting flange uses a small flange design to prevent the feed pipe from rotating during use. The clamping seat consists of a fixed seat and a clamping part. The fixed seat is fixedly connected to the bearing seat of the horizontal screw centrifuge to ensure its firmness and stability. The bottom of the fixed seat has a first semi-circular groove, and the top of the clamping part has a second semi-circular groove, which together form a clamping hole to facilitate the insertion and positioning of the feed pipe. The tight fit between the positioning hole of the connecting flange and the mating hole of the clamping seat ensures the coaxiality of the feed pipe after installation. Although the feed pipe in this structure is still a cantilever structure, the stress concentration point is not at the weld between the flange and the pipe, reducing the risk of breakage. Due to the design of the clamping part and locking bolts, the installation and disassembly process of the feed pipe becomes simpler and faster. Attached Figure Description

[0020] Figure 1 One of the schematic diagrams showing the installation of a aligning anti-breakage feeding device on a horizontal screw centrifuge;

[0021] Figure 2 Schematic diagram 2 of a alignment-type anti-breakage feeding device installed on a horizontal screw centrifuge;

[0022] Figure 3 Schematic diagram three showing the installation of a aligning anti-breakage feeding device on a horizontal screw centrifuge;

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of part A;

[0024] Figure 5 This is a schematic diagram of the card holder structure of this utility model.

[0025] Figure 6 This is a schematic diagram of the internal structure of the card holder of this utility model.

[0026] The markings in the diagram are: 1-Horizontal screw centrifuge, 2-Alignment type anti-breakage device, 3-Feed pipe, 4-Connector, 5-Water inlet, 6-Connecting flange, 7-Top screw hole, 8-Clad seat, 9-Bearing seat, 10-Fixing seat, 11-Flush pipe, 12-Clamping part, 13-Water drain trough, 14-Annular protrusion, 15-Flush hole, 16-Through hole, 17-First semi-circular groove, 18-Second semi-circular groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0028] Example:

[0029] A aligning anti-breakage feeding device 2 is connected to the bearing seat 9 of the solid end of the horizontal screw centrifuge 1. The aligning anti-breakage feeding device 2 includes a feeding pipe 3, a connecting flange 6, and a clamping seat 8. The clamping seat 8 is fixedly connected to the bearing seat 9. The connecting flange 6 is connected to the side of the feeding pipe 3 near the feed inlet. A positioning hole is provided on the top side of the connecting flange 6, and a mating hole is provided on the top side of the clamping seat 8. The clamping seat 8 includes a fixed seat 10 and a clamping part 12. The fixed seat 10 is fixedly connected to the bearing seat 9, and the clamping part 12 is connected to the bottom of the fixed seat 10 by locking bolts. A first semi-circular groove 17 is provided at the bottom of the fixed seat 10, and a second semi-circular groove 18 is provided at the top of the clamping part 12. The first semi-circular groove 17 and the second semi-circular groove 18 are combined to form a clamping hole, and the feeding pipe 3 is inserted into the clamping hole.

[0030] The horizontal screw centrifuge 1 is existing technology, and its specific structure will not be described in detail here. It should be noted that the connecting flange 6 in this application is a small flange. More specifically, the connecting flange 6 is responsible for positioning the feed pipe 3 during installation and preventing it from running around. The fixing and coaxial fit of the feed pipe 3 are achieved through the clamping seat 8. The positioning hole on the connecting flange 6 mates with the mating hole on the clamping seat 8. Bolts are inserted into the positioning hole and the mating hole to connect the connecting flange 6 and the clamping seat 8 together. The clamping part 12 is used to press the feed pipe 3 onto the fixing seat 10, thereby completing the positioning and fixing of the feed pipe 3.

[0031] Specifically, in use, first loosen the locking bolts on the clamping part 12 to increase the distance between the first semicircular groove 17 and the second semicircular groove 18, facilitating the installation of the feed pipe 3. Then, insert the discharge end of the feed pipe 3 between the first semicircular groove 17 and the second semicircular groove 18. Push the feed pipe 3 upwards to align it with the fixed base 10. Rotate the feed pipe 3 to align the positioning hole with the mating hole, insert bolts into the positioning hole and mating hole, and connect the connecting flange 6 to the fixed base 10. Then, rotate the locking bolts on the clamping part 12 to tighten them. During tightening, the clamping part 12 moves upwards and presses against the feed pipe 3. After tightening, the clamping part 12 presses the feed pipe 3 tightly between the fixed base 10 and the clamping part 12. The feed pipe 3 fits tightly against the walls of the first semicircular groove 17 and the second semicircular groove 18, ensuring the coaxiality of the feed pipe 3 and the rotating parts of the horizontal screw centrifuge 1. At the same time, the stress on the feed pipe 3 is distributed on the section where the feed pipe 3 is connected to the card holder 8, which reduces the possibility of stress concentration and can effectively prevent the feed pipe 3 from breaking due to stress concentration.

[0032] In a preferred embodiment, a plurality of annular protrusions 14 are provided on the side of the feed pipe 3 away from the connecting flange 6. These annular protrusions 14 are used to prevent backflow. The design of the annular protrusions 14 creates a physical barrier, effectively preventing liquid backflow on the feed pipe 3, especially when handling viscous or suspended liquids, where they are more effective in preventing backflow problems caused by material characteristics. Further optimized, the feed pipe 3 has at least four annular protrusions 14. The purpose of providing multiple annular protrusions 14 is to effectively prevent liquid backflow by creating multiple physical barriers. Specifically, in this embodiment, four annular protrusions 14 are provided. During liquid transport, the annular protrusions 14 cooperate to form a series of stagnant zones, and the liquid drips from the bottom of the annular protrusions 14 as it passes through them, thus effectively ensuring the anti-backflow effect. Further optimized, a drain trough 13 is provided on the side of the mounting bracket 8 near the bearing seat 9. The main function of the drain trough 13 is to drain the liquid that accumulates in the bearing seat 8 due to liquid backflow, preventing the liquid from entering the bearing and causing corrosion. The design of the drain trough 13 ensures the cleanliness of the bearing's interior, thereby reducing wear and resistance, ensuring good rotational performance during operation, and providing higher working efficiency and stability. In a preferred embodiment, the drain trough 13 is configured with a streamlined shape, allowing for rapid liquid drainage.

[0033] In a preferred embodiment, a connector 4 is provided at the inlet end of the feed pipe 3. The connector 4 facilitates the connection of the feed pipe 3 to other equipment or pipelines. The connector 4 can be a quick-connect chuck, threaded head, flange, or other similar structure. The design of the connector 4 simplifies and speeds up the connection of the feed pipe 3 to other equipment or pipelines. For example, using a quick-connect chuck allows for rapid installation and disassembly, significantly reducing operation time and labor costs, and improving work efficiency. Choosing a suitable connector 4 structure, such as a flange or threaded head, can effectively improve the sealing of the connection, thereby preventing liquid leakage and reducing material loss. The connector 4 provides a convenient disassembly method, making it easier to clean and maintain the feed pipe 3, connector 4, and surrounding equipment, keeping the system clean and preventing malfunctions caused by scaling or impurity accumulation.

[0034] In a preferred embodiment, a flushing pipe 11 is provided inside the feed pipe 3. The main function of the flushing pipe 11 is to introduce cleaning water into the interior of the decanter centrifuge 1 to facilitate regular cleaning and maintenance of the internal structure of the decanter centrifuge 1. This design not only improves the cleaning efficiency of the decanter centrifuge 1. Further optimized, the inlet end of the flushing pipe 11 is fixedly connected to a water inlet head 5, which forms an L-shaped structure after being connected to the water inlet pipe. The water inlet head 5 penetrates the wall of the feed pipe 3 and extends outside the feed pipe 3. This structure of the water inlet head 5 facilitates the connection of the flushing pipe 11 to the pipe. Further optimized, a number of flushing holes 15 are evenly spaced along the axial direction on the side of the flushing pipe 11 near the outlet end, and a number of through holes 16 that cooperate with the flushing holes 15 are provided on the feed pipe 3. The arrangement of the flushing holes 15 and the through holes 16 ensures that the water flow can be evenly distributed inside the decanter centrifuge 1. This uniformity helps to more effectively cover the internal surface, reduce cleaning blind spots, and ensure that most areas can be thoroughly flushed. Meanwhile, the design of multiple flushing holes 15 can increase the water intake, thereby effectively improving the cleaning effect.

[0035] In a preferred embodiment, set screw holes 7 are provided on both sides of the connecting flange 6. When disassembling the feed pipe 3, bolts can be screwed into the set screw holes 7 for quick disassembly. The force applied by the bolts pushes the feed pipe 3 away from the retainer 8, simplifying the operation steps in traditional disassembly methods and significantly improving work efficiency. This design also facilitates the maintenance and replacement of the feed pipe 3.

[0036] In a preferred embodiment, the mounting base 10 and the bearing housing 9 are connected by bolts. This bolted connection forms a robust structure between the mounting base 10 and the bearing housing 9, effectively allowing the system to withstand vibrations and loads generated during operation, such as in the horizontal screw centrifuge 1, thus improving the overall system stability. The bolted connection also simplifies the disassembly and replacement of the mounting base 10 and the bearing housing 9, allowing operators to quickly loosen or tighten the bolts using conventional tools, significantly accelerating maintenance or replacement efficiency and reducing equipment downtime.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of alignment-type anti-breakage feeding device, wherein the alignment-type anti-breakage feeding device (2) is connected to the bearing seat (9) of the solid end of the horizontal screw centrifuge (1), characterized in that: The alignment-type anti-breakage feeding device (2) includes a feeding pipe (3), a connecting flange (6), and a mounting bracket (8); The card holder (8) is fixedly connected to the bearing seat (9), and the connecting flange (6) is connected to the feed pipe (3) on the side near the feed port. The top side of the connecting flange (6) is provided with a positioning hole, and the top side of the card holder (8) is provided with a mating hole. The clamping seat (8) includes a fixed seat (10) and a clamping part (12). The fixed seat (10) is fixedly connected to the bearing seat (9). The clamping part (12) is connected to the bottom of the fixed seat (10) by a locking bolt. The bottom of the fixed seat (10) is provided with a first semi-circular groove (17), and the top of the clamping part (12) is provided with a second semi-circular groove (18). The first semi-circular groove (17) and the second semi-circular groove (18) are combined to form a clamping hole. The feed pipe (3) is inserted into the clamping hole and clamped through the clamping hole.

2. The alignment-type anti-breakage feeding device according to claim 1, characterized in that: Several annular protrusions (14) are provided on the side of the feed pipe (3) away from the connecting flange (6).

3. The alignment-type anti-breakage feeding device according to claim 2, characterized in that: At least four annular protrusions (14) are provided on the feed pipe (3).

4. The alignment-type anti-breakage feeding device according to claim 3, characterized in that: A water drain trough (13) is provided on the side of the card holder (8) near the bearing seat (9).

5. The alignment-type anti-breakage feeding device according to claim 1, characterized in that: A connector (4) is provided at the inlet end of the feed pipe (3).

6. The alignment-type anti-breakage feeding device according to claim 1, characterized in that: A flushing pipe (11) is installed inside the feed pipe (3).

7. The alignment-type anti-breakage feeding device according to claim 6, characterized in that: The inlet end of the flushing pipe (11) is fixed with the water inlet head (5). After the water inlet head (5) is connected to the water inlet pipe, it forms an L-shaped structure. The water inlet head (5) penetrates the pipe wall of the feed pipe (3) and extends out of the feed pipe (3).

8. The alignment-type anti-breakage feeding device according to claim 7, characterized in that: A number of flushing holes (15) are evenly spaced along the axial direction on one side of the flushing pipe (11) near the outlet end, and a number of through holes (16) that cooperate with the flushing holes (15) are provided on the feed pipe (3).

9. The alignment-type anti-breakage feeding device according to claim 1, characterized in that: The connecting flange (6) has set screw holes (7) on both sides.

10. The alignment-type anti-breakage feeding device according to claim 1, characterized in that: The fixed seat (10) and the bearing seat (9) are connected by bolts.

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