Detachable jacket feeding pipe of horizontal screw centrifuge

Abstract

The utility model belongs to the technical field of centrifugal machines, and particularly relates to a detachable jacket feeding pipe of a horizontal screw centrifugal machine, which comprises a feeding pipe, one end of the feeding pipe is a feeding port, the other end of the feeding pipe is a discharging port, a casing pipe is sleeved on a pipe body of the feeding pipe, two ends of the casing pipe are detachably connected with the feeding pipe, and a sealing structure is arranged at the joint of the casing pipe and the feeding pipe. A jacket layer is formed between the sleeve and the feeding pipe, a water inlet is formed in the pipe wall, close to the feeding port, of the sleeve, a water outlet is formed in the pipe wall, away from the feeding port, of the sleeve, and the water outlet is detachably connected with an arc-shaped net plate. According to the structure of the scheme, the sleeve can be quickly disassembled and cleaned, and the water outlet can be prevented from being blocked in the using process.

Description

Technical Field

[0001] This utility model belongs to the field of centrifuge technology, and in particular relates to a jacketed feed pipe for a horizontal screw centrifuge. Background Technology

[0002] Horizontal decanter centrifuges are highly efficient, automatic, and continuous solid-liquid separation devices. With their high-speed rotation and wide range of applications, they play a crucial role in industrial production. During operation, materials are fed into the centrifuge through the feed pipe and undergo solid-liquid separation under high-speed rotation. However, with prolonged operation, materials may gradually accumulate in the feed pipe and its channels, affecting not only the centrifuge's separation efficiency but also potentially hindering normal operation. To address this issue, existing horizontal decanter centrifuges typically employ a jacketed feed pipe design. This design integrates the feeding and water (washing medium) functions, effectively preventing material accumulation in the feed pipe through water washing.

[0003] However, existing jacketed feed pipe technology still has some significant drawbacks. Specifically, most current jacketed feed pipes adopt a welded structure, meaning the inner and outer layers of the jacket are connected as a single, non-removable unit. While this structure ensures the stability and durability of the equipment to a certain extent, it also brings many inconveniences. For example, when certain easily hardened materials accidentally enter the jacket layer of the feed pipe, they can easily cause blockages, leading to the complete loss of the feed pipe's washing function and affecting the normal operation and service life of the centrifuge. Furthermore, due to the limitations of the welded structure, once the jacket layer is blocked, unblocking the feed pipe becomes extremely difficult. Traditional maintenance methods are not only costly and time-consuming, but also often fail to achieve the desired unblocking effect. More seriously, since the outer jacket pipe usually does not have cleaning holes, once the material hardens in the jacket, it is impossible to clean it manually, which further exacerbates the blockage problem of the feed pipe and may even lead to the scrapping of the entire feed pipe. Utility Model Content

[0004] This invention proposes a detachable jacketed feed pipe for a horizontal screw centrifuge to solve the problems of easy clogging and inconvenient cleaning of existing integrated jackets.

[0005] The present invention provides a detachable jacketed feed pipe for a horizontal screw centrifuge, comprising a feed pipe with a feed inlet at one end and a discharge outlet at the other end. A sleeve is fitted over the feed pipe, and both ends of the sleeve are detachably connected to the feed pipe. A sealing structure is provided at the connection point. A jacket layer is formed between the sleeve and the feed pipe. A water inlet is provided on the sleeve wall near the feed inlet, and a water outlet is provided on the sleeve wall away from the feed inlet. An arc-shaped mesh plate is detachably connected to the water outlet.

[0006] Beneficial effects: First, the sleeve and feed pipe of this invention are detachably connected, allowing the sleeve to be removed for cleaning after material enters the jacket layer, preventing clogging. The sealing structure also ensures that water in the jacket layer flows out through the outlet, preventing leakage from both ends of the sleeve. Second, an arc-shaped mesh plate is detachably connected after the outlet, ensuring water flow while preventing material on the outside from being squeezed into the outlet and causing blockage. This design allows for quick disassembly and cleaning of the sleeve, and also prevents outlet blockage during use.

[0007] Furthermore, the end of the sleeve near the feed inlet is connected to the feed pipe flange, and a sealing ring is installed at the connection; a sealing ring is provided between the end of the sleeve away from the feed inlet and the feed pipe, and they are connected by fasteners. This solution achieves a detachable connection between the sleeve and the feed pipe through fasteners and flanges.

[0008] Furthermore, the mesh of the arc-shaped mesh plate is a conical hole, and the diameter of the conical hole increases from the inside to the outside. Since the outer side of the conical hole is a material cavity and the inner side is a jacket layer, this design allows the water to quickly flush away the material accumulated in the conical hole.

[0009] Furthermore, a cleaning brush is provided at one end of the sleeve near the feed inlet. When the sleeve is pulled out, the cleaning brush can scrape off the scale or material residue on the outer wall of the feed pipe.

[0010] Furthermore, the inner wall of the sleeve is provided with a spiral guide vane, which divides the jacket layer to form a spiral guide channel. One end of the spiral guide channel is connected to the water inlet, and the other end is connected to the water outlet. In traditional sleeves, due to the lack of guidance after water enters, the water will disperse in all directions before flowing out of the water outlet. The kinetic energy loss of the water is relatively large, resulting in poor flushing effect on the centrifuge material chamber. However, by using a spiral guide channel, the water can flow directly and quickly to the water outlet, with less kinetic energy loss and better flushing effect on the centrifuge chamber. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the detachable jacketed feed pipe of a horizontal screw centrifuge according to the present invention. Detailed Implementation

[0012] The following detailed description illustrates the specific implementation method:

[0013] The reference numerals in the accompanying drawings include: feed pipe 1, feed inlet 1-1, discharge outlet 1-2, sleeve 2, water inlet 2-1, water outlet 2-2, arc-shaped mesh plate 2-3, cleaning brush bristles 2-4, and spiral guide vane 2-5.

[0014] Example: Figure 1As shown, a detachable jacketed feed pipe for a horizontal screw centrifuge includes a feed pipe 1, with the left end of the feed pipe 1 being an outlet 1-2 and the right end being an inlet 1-1.

[0015] A first flange is installed on the outer wall of the right end of the feed pipe 1. A sleeve 2 is fitted onto the feed pipe 1 and is coaxial with it. A second flange is installed on the right end of the sleeve 2. The first and second flanges are connected by bolts. A first sealing ring is installed on the contact surface between the right end of the sleeve 2 and the feed pipe 1. A second sealing ring is installed between the left end of the sleeve 2 and the feed pipe 1, and they are tightly connected by fasteners. After installation, a jacket layer is formed between the sleeve 2 and the feed pipe 1.

[0016] The sleeve 2 has an outlet 2-2 on its left side and an inlet 2-1 on its right side, with the inlet 2-1 connected to the inlet pipe assembly. An arc-shaped mesh plate 2-3 is bolted to the outer layer of the outlet 2-2; the mesh of this arc-shaped mesh plate 2-3 has tapered holes, with the diameter increasing from the inside to the outside. An annular cleaning brush 2-4 is installed on the inner wall of the sleeve 2 near its right end, allowing for the removal of materials or scale from the outer wall of the feed pipe 1 when the sleeve 2 is withdrawn. A spiral guide vane 2-5 is welded to the inner wall of the sleeve 2. After the sleeve 2 is installed with the feed pipe 1, the spiral guide vane 2-5 divides the jacket layer to form a spiral guide channel, with one end connected to the inlet 2-1 and the other end connected to the outlet 2-2.

[0017] When the centrifuge needs cleaning, the water inlet pipe assembly is connected to an external water source. Water enters the jacket layer from the water inlet 2-1 and washes the outer wall of the feed pipe 1 along the spiral guide channel, flushing the slag to the arc-shaped screen plate 2-3. The water enters the material chamber of the centrifuge through the water outlet 2-2 to clean the material chamber. When the arc-shaped screen plate 2-3 becomes clogged, the sleeve 2 is pulled out. During the pulling process, the cleaning bristles 2-4 will scrape off the slag on the surface of the feed pipe 1. After it is completely pulled out, the arc-shaped screen plate 2-3 can be removed for cleaning.

[0018] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed by this utility model should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A detachable jacketed feed pipe for a horizontal decanter centrifuge, comprising a feed pipe, one end of which is a feed inlet and the other end of which is a discharge outlet, characterized in that: A sleeve is fitted onto the body of the feed pipe, and both ends of the sleeve are detachably connected to the feed pipe. A sealing structure is provided at the connection. A jacket layer is formed between the sleeve and the feed pipe. A water inlet is provided on the pipe wall near the feed inlet, and a water outlet is provided on the pipe wall away from the feed inlet. An arc-shaped mesh plate is detachably connected to the water outlet.

2. The detachable jacketed feed pipe for a horizontal screw centrifuge according to claim 1, characterized in that: The end of the sleeve near the feed inlet is connected to the feed pipe flange, and a sealing ring is installed at the connection; the end of the sleeve away from the feed inlet is provided with a sealing ring between it and the feed pipe, and is connected by fasteners.

3. The detachable jacketed feed pipe for a horizontal screw centrifuge according to claim 2, characterized in that: The arc-shaped mesh plate has tapered holes, and the diameter of the tapered holes increases from the inside to the outside.

4. The detachable jacketed feed pipe for a horizontal screw centrifuge according to claim 3, characterized in that: The sleeve is equipped with cleaning bristles at one end near the feed inlet.

5. The detachable jacketed feed pipe for a horizontal screw centrifuge according to claim 4, characterized in that: The inner wall of the sleeve is provided with a spiral guide plate, which divides the jacket layer to form a spiral guide channel. One end of the spiral guide channel is connected to the water inlet, and the other end is connected to the water outlet.

Images