Specialized upper collecting tank for decanter centrifuge

By combining a circular cavity at the slag outlet of the horizontal screw centrifuge with an ultrasonic vibrator and a high-pressure water gun, the problem of material accumulation at the slag outlet of the horizontal screw centrifuge was solved, enabling the smooth discharge of solid slag and continuous operation of the centrifuge.

CN224293546UActive Publication Date: 2026-05-29宁波龙育机械设备有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
宁波龙育机械设备有限公司
Filing Date
2025-04-30
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The slag collection box of the existing horizontal screw centrifuge is prone to material accumulation, which can lead to solid slag filling the box and preventing normal slag discharge. In severe cases, this can cause the centrifuge to overload and shut down.

Method used

Design a dedicated upper collection box for horizontal screw centrifuges, comprising a circular cavity and a lower opening, equipped with an ultrasonic vibrator and a high-pressure water gun. The ultrasonic vibrator generates 20-40kHz ultrasonic waves to reduce the adhesion of solid residue, and the high-pressure water gun sprays water to loosen the solid residue. Combined with the flared structure and sealing sleeve design, it ensures that the solid residue can be discharged smoothly.

Benefits of technology

It effectively reduces solid slag accumulation, ensures continuous operation of the centrifuge, improves the fluidity and cleaning efficiency of solid slag, prevents accumulation in dead corners, and avoids centrifuge overload shutdown.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224293546U_ABST
    Figure CN224293546U_ABST
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Abstract

The utility model relates to solid -liquid separation technical field especially lies, and it is special to lie screw centrifuge to collect the box of going up, including setting in the box of the deslagging port of lie screw centrifuge, the box is provided with the cavity of round, the box is provided with the opening of the cavity intercommunication, the opening sets up the downside at the box, still include ultrasonic vibration stick, is provided with at least 2 ultrasonic vibration sticks, at least 2 ultrasonic vibration sticks symmetric setting at the both sides of opening, the ultrasonic vibration stick includes metal stick body, the metal stick body from the round face of round cavity stretches into the cavity, the metal stick body from the opening top points to the opening, the metal stick body in the cavity the length is 15 25cm, the metal stick body with the clearance of 0.5 2cm of the cavity, improve solid residue fluidity, reduce the possible of solid residue material accumulation.
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Description

Technical Field

[0001] This utility model relates to the field of solid-liquid separation technology, and in particular to a horizontal screw centrifuge. Background Technology

[0002] A horizontal decanter centrifuge is a highly efficient solid-liquid centrifugal separation device. The collection tank is a crucial component of the horizontal decanter centrifuge, primarily used to collect solid waste or sediment generated during the centrifugation process.

[0003] Existing centrifuges are used to separate viscous solid residues. The inside of the centrifuge's slag collection box is prone to material accumulation and is difficult to clean. After a period of time, the material layer inside the slag collection box becomes thicker and thicker, and the slag outlet is filled with solid residue, making it impossible to discharge slag normally. In severe cases, it can even cause the centrifuge to overload and stop, making it impossible for the centrifuge to operate normally and continuously. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution;

[0007] A dedicated upper collection box for horizontal decanter centrifuges, comprising a box body located at the slag outlet of the horizontal decanter centrifuge.

[0008] The box body is provided with a circular cavity, and the box body is provided with an opening communicating with the cavity;

[0009] The opening is located on the lower side of the box body;

[0010] It also includes ultrasonic vibrating rods, and at least two ultrasonic vibrating rods are provided, with the at least two ultrasonic vibrating rods symmetrically arranged on both sides of the opening;

[0011] The ultrasonic vibrating rod includes a metal rod body;

[0012] The metal rod extends into the circular cavity from the circular surface of the cavity, and the metal rod points from above the opening towards the opening;

[0013] The length of the metal rod extending into the cavity is 15-25cm;

[0014] The metal rod and the cavity have a gap of 0.5-2 cm.

[0015] The above design, firstly, by setting a circular cavity and an opening on the lower side, reduces dead corners, allowing solid slag material to naturally slide into the opening for discharge, reducing the possibility of material accumulation; secondly, by using ultrasonic vibrators, which generate ultrasonic waves between 20kHz and 40kHz, effectively excite the solid slag particles, reducing the adhesion of the solid slag material and improving its fluidity. At least two ultrasonic vibrators can effectively promote the flow of solid slag on both sides of the opening, reducing the possibility of solid slag accumulation; the metal rod body has a gap of 0.5-2cm with the cavity, providing sufficient space to weaken the impact of ultrasonic waves on the chamber. The length of the metal rod body is 15-25cm, forming a vibration zone to help the solid slag material flow smoothly, while avoiding excessively large gaps that would weaken the ultrasonic vibration effect.

[0016] Preferably, the housing is further provided with mounting platforms, each having a channel communicating with the cavity; at least two mounting platforms are provided; each mounting platform is equipped with an ultrasonic vibrating rod, the metal rod extending into the cavity through the channel. Providing at least two mounting platforms ensures good stability for the ultrasonic vibrating rod installation, enabling the ultrasonic vibrating rod to work effectively.

[0017] Preferably, the mounting platform is further provided with a polytetrafluoroethylene (PTFE) sealing sleeve, which is disposed between the channel and the metal rod. The sealing sleeve can effectively prevent liquid or solid materials from leaking between the channel and the metal rod.

[0018] Preferably, the portion of the opening that connects to the cavity is configured as a flared structure that gradually increases in size from bottom to top. This flared structure design helps to improve fluidity and reduce resistance during solid slag discharge.

[0019] Preferably, the metal rod has spherical protrusions on its body, and at least five such protrusions are arranged on the metal rod. Having at least five annular protrusions allows for even distribution on the metal rod's body, forming a continuous vibration zone, which improves the transmission efficiency of ultrasonic vibration force and the flowability of materials.

[0020] Preferably, the connecting edges between the protruding structure and the metal rod are provided with rounded chamfers. The protruding structure may obstruct solid slag, and the rounded chamfers facilitate the smooth flow of solid slag.

[0021] Preferably, the mounting platform is provided with a rotating platform, the rotating platform having a circular hole that communicates with the channel; the ultrasonic vibrating rod is disposed on the rotating platform, the metal rod passing through the circular hole, and the circular hole coinciding with the axis of the metal rod. Rotating the ultrasonic vibrating rod prevents solid slag from adhering between the annular protrusions.

[0022] Preferably, it also includes a high-pressure water pipeline; a high-pressure water gun is also installed in the housing, and the high-pressure water gun is connected to the high-pressure water pipeline; the nozzle of the high-pressure water gun faces the circular surface of the cavity. The nozzle of the high-pressure water gun facing the circular surface of the cavity can effectively spray water to loosen and flow the solid slag, cleaning solid residues and accumulated sediment in the cavity. Furthermore, the combined use of high-pressure liquid flow and ultrasonic waves can promote the flow and discharge of solid slag particles.

[0023] Preferably, the nozzle of the high-pressure water gun is located at the top of the cavity, and at least two nozzles are provided, symmetrically arranged within the cavity. Positioning the nozzles at the top of the cavity allows the water flow to slide along a circular surface, impacting the solids and enhancing the cleaning effect. The symmetrical arrangement of at least two nozzles ensures even water distribution, covering all areas of the cavity and avoiding any dead zones, thus preventing the accumulation of solids within the cavity. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0025] Figure 1 This is a schematic diagram of the housing structure of the upper collection box for a horizontal screw centrifuge according to this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the upper collection box for a horizontal screw centrifuge according to this utility model;

[0027] Figure 3 This is a schematic diagram of the installation position of the extrusion screw of this utility model on the box of the fly ash granulator. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in less than one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments. Example 1

[0032] refer to Figures 1-3 A dedicated upper collection box for horizontal decanter centrifuges, comprising a box body 1 located at the slag outlet 4 of the horizontal decanter centrifuge.

[0033] The box 1 is provided with a circular cavity 11, and the box 1 is provided with an opening 12 communicating with the cavity 11;

[0034] The opening 12 is located on the lower side of the housing 1;

[0035] It also includes ultrasonic vibrating rods 2, and at least two ultrasonic vibrating rods 2 are provided, with at least two ultrasonic vibrating rods 2 symmetrically arranged on both sides of the opening 12;

[0036] The ultrasonic vibrating rod 2 includes a metal rod body 21;

[0037] The metal rod 21 extends into the circular cavity 11 from the circular surface of the circular cavity 11, and the metal rod 21 points from above the opening 12 towards the opening 12;

[0038] The length of the metal rod 21 that extends into the cavity 11 is 15-25cm;

[0039] The metal rod 21 has a gap of 0.5-2cm with the cavity 11.

[0040] The above design, firstly, by setting a circular cavity 11 and an opening 12 on the lower side, the circular cavity 11 can reduce dead corners, allowing solid slag material to naturally slide into the opening 12 for discharge, reducing the possibility of material accumulation; secondly, by using ultrasonic vibrating rods 2, which generate ultrasonic waves between 20kHz and 40kHz, it can effectively excite solid slag particles to reduce the adhesion of solid slag material and improve the flowability of solid slag. At least two ultrasonic vibrating rods 2 can effectively promote the flow of solid slag on both sides of the opening 12, reducing the possibility of solid slag accumulation; the metal rod 21 has a gap of 0.5-2cm with the cavity 11, which provides sufficient space to weaken the impact of ultrasonic waves on the box 1. The length of the metal rod 21 is 15-25cm, forming a vibration zone to help the solid slag material flow smoothly, while avoiding excessive gaps that would weaken the ultrasonic vibration effect.

[0041] An mounting platform is also provided outside the housing 1, and the mounting platform is provided with a channel communicating with the cavity 11; at least two mounting platforms are provided; an ultrasonic vibrating rod 2 is mounted on each mounting platform, and the metal rod 21 extends into the cavity 11 through the channel. Providing at least two mounting platforms provides good stability for the installation of the ultrasonic vibrating rod 2, enabling the ultrasonic vibrating rod 2 to work effectively.

[0042] The mounting platform is also equipped with a polytetrafluoroethylene (PTFE) sealing sleeve 22, which is positioned between the channel and the metal rod 21. The sealing sleeve 22 effectively prevents liquid or solid materials from leaking between the channel and the metal rod 21.

[0043] In use, the two ultrasonic vibrating rods 2 can effectively promote the flow of solid slag on both sides of the opening 12, reduce the possibility of solid slag accumulation, promote the smooth flow of solid slag material, and allow the solid slag material to naturally slide into the opening 12 for discharge. At least two mounting platforms are set up to provide good stability for the installation of the ultrasonic vibrating rods 2. The sealing sleeve 22 can effectively prevent liquid or solid slag material from leaking between the channel and the metal rod body 21. Example 2

[0044] refer to Figure 1 and Figure 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0045] The portion of the opening 12 that connects to the cavity 11 is configured as a flared structure 121 that gradually increases in size from bottom to top. This flared structure 121 design helps to improve fluidity and reduce resistance during solid slag discharge.

[0046] The metal rod 21 has spherical protrusions 211 on its body, and at least five protrusions 211 are arranged on the metal rod 21. The at least five annular protrusions 211 can be evenly distributed on the body of the metal rod to form a continuous vibration area, which can improve the transmission efficiency of ultrasonic vibration force and the flowability of materials.

[0047] The edges of the protruding structure 211 are all provided with rounded chamfers. The protruding structure 211 may block solid slag, and the rounded chamfers facilitate the smooth flow of solid slag.

[0048] Preferably, the mounting platform is provided with a rotating platform, the rotating platform having a circular hole that communicates with the channel; the ultrasonic vibrating rod 2 is disposed on the rotating platform, the metal rod 21 passing through the circular hole, and the circular hole coinciding with the axis of the metal rod. Rotating the ultrasonic vibrating rod prevents solid slag from adhering between the protruding structures 211.

[0049] It also includes a high-pressure water pipeline; a high-pressure water gun 3 is also installed in the housing 1, and the high-pressure water gun 3 is connected to the high-pressure water pipeline; the nozzle of the high-pressure water gun 3 faces the circular surface of the cavity 11. The nozzle of the high-pressure water gun 3 facing the circular surface of the cavity 11 can effectively spray water to loosen and flow the solid slag, clean the solid residue and accumulated sediment in the cavity 11, and the combined use of high-pressure liquid flow and ultrasound can promote the flow and discharge of solid slag particles.

[0050] The high-pressure water gun 3 has its nozzles located at the top of the cavity 11, with at least two nozzles symmetrically arranged within the cavity 11. Positioning the nozzles of the high-pressure water gun 3 at the top of the cavity 11 allows the water flow to slide along a circular surface, impacting the solids and enhancing the cleaning effect. The symmetrical arrangement of at least two nozzles ensures even water distribution, covering all areas of the cavity 11 and avoiding any dead zones, thus preventing the accumulation of solids within the cavity 11.

[0051] In use, the nozzle of the high-pressure water gun 3 is located at the top of the cavity 11. The sprayed water can slide along the circular surface to impact the solids on the cavity 11, cleaning the solid residues and accumulated sediment in the cavity 11. The symmetrical arrangement of at least two nozzles ensures uniform water distribution, covering all areas of the cavity 11 and avoiding any dead corners, thus preventing solids from accumulating in the cavity 11. At least five annular protrusions 211 are evenly distributed on the metal rod, forming a continuous vibration zone. This improves the transmission efficiency of ultrasonic vibration force, thereby increasing the fluidity of the solids. The flared opening structure 121 of the opening 12 helps improve fluidity and reduce resistance during solids discharge.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dedicated upper collection box for a horizontal decanter centrifuge, comprising a box body installed at the slag outlet of the horizontal decanter centrifuge, characterized in that: The box body is provided with a circular cavity, and the box body is provided with an opening communicating with the cavity; The opening is located on the lower side of the box body; It also includes ultrasonic vibrating rods, and at least two ultrasonic vibrating rods are provided, with the at least two ultrasonic vibrating rods symmetrically arranged on both sides of the opening; The ultrasonic vibrating rod includes a metal rod body; The metal rod extends into the circular cavity from the circular surface of the cavity, and the metal rod points from above the opening towards the opening; The length of the metal rod inserted into the cavity is 15-25cm; The metal rod and the cavity have a gap of 0.5-2 cm.

2. The upper collection box for a horizontal decanter centrifuge according to claim 1, characterized in that: The box body is also provided with an installation platform, and the installation platform is provided with a channel communicating with the cavity; It is equipped with at least two mounting stations; An ultrasonic vibrating rod is installed on each of the mounting platforms, and the metal rod extends into the cavity through the channel.

3. The upper collection box for a horizontal decanter centrifuge according to claim 2, characterized in that: The mounting platform is also equipped with a polytetrafluoroethylene sealing sleeve, which is located between the channel and the metal rod.

4. The upper collection box for a horizontal decanter centrifuge according to claim 1, characterized in that: The portion of the opening that connects to the cavity is configured as a flared structure that gradually increases in size from bottom to top.

5. The upper collection box for a horizontal decanter centrifuge according to claim 2, characterized in that: The metal rod has a spherical protrusion structure on its body, and at least five protrusion structures are arranged on the metal rod.

6. The upper collection box for a horizontal decanter centrifuge according to claim 5, characterized in that: The mounting platform is equipped with a rotating platform, and the rotating platform has a circular hole that communicates with the channel; The ultrasonic vibrating rod is mounted on the rotating platform, the metal rod passes through the circular hole, and the circular hole coincides with the axis of the metal rod.

7. The upper collection box for a horizontal decanter centrifuge according to claim 1, characterized in that: It also includes high-pressure water pipelines; The box is also equipped with a high-pressure water gun, which is connected to the high-pressure water pipeline. The nozzle of the high-pressure water gun faces the circular surface of the cavity.

8. The upper collection box for a horizontal decanter centrifuge according to claim 7, characterized in that: The high-pressure water gun has its nozzles located at the top of the cavity, with at least two nozzles symmetrically arranged within the cavity.