A bowl structure for a centrifuge

Abstract

The utility model discloses a kind of drum structures for centrifuge in the field of drum, including machine cover, drum assembly and cleaning component, protruding inner ring body is equipped in machine cover inner wall, one side has the inlet interface and the blow-off interface of intercommunication;The outer ring body is equipped in the opening edge of the middle part of the first panel of drum assembly, outer ring body is attached to the outside of inner ring body to make inlet interface intercommunication drum inside, and the driving motor of the side of machine cover drives drum assembly to rotate;The nozzle of cleaning component is distributed along the length direction of drum, and the blow-off plate is arranged in the inside of drum and one end is inclined to intercommunication with the blow-off interface of machine cover inner wall. The structure avoids leakage by the attachment of inner ring body and outer ring body, guarantees pressure stability, improves filtration efficiency;Nozzle and blow-off plate design can clean filter layer comprehensively, quickly discharge residual, improve cleaning efficiency and sanitary standard.

Description

Technical Field

[0001] This utility model relates to the field of rotary drum technology, specifically a rotary drum structure for centrifuges. Background Technology

[0002] In the environmental protection field, centrifuges, as core separation equipment for treating pollutants such as industrial wastewater, domestic sewage, and sludge, undertake the key tasks of solid-liquid separation, hazardous substance interception, and resource recovery. Through the centrifugal force generated by the high-speed rotation of the drum, centrifuges can quickly separate suspended particles and sludge flocs from the water in wastewater. The separated clarified liquid can meet discharge standards or enter into advanced treatment stages, while the intercepted solid residue is reduced and rendered harmless through subsequent disposal. Therefore, the separation efficiency, operational stability, and cleanliness of the equipment directly affect the compliance rate of environmental treatment and operating costs.

[0003] However, the current centrifuge drum structure still faces the following problems in practical applications: On the one hand, the drum feed interface has poor sealing performance, which can easily cause secondary pollution due to material leakage. This also leads to internal pressure fluctuations, resulting in decreased separation efficiency. Furthermore, the seals are easily corroded by corrosive materials, requiring frequent replacement. On the other hand, the cleaning and drainage design is unreasonable. Incomplete nozzle coverage creates cleaning blind spots, and the drainage channel is prone to residue accumulation, requiring manual cleaning and increasing operational risks and the risk of cross-contamination. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a drum structure for centrifuges, which can effectively solve the technical problems of poor stability and low cleaning efficiency of the drum structure currently used in centrifuges.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A centrifuge drum structure includes a casing, a drum assembly for filtration that rotates inside the casing, and a cleaning assembly for cleaning that is located inside the casing. The inner wall of the casing has a raised inner ring, and one side of the casing has an inlet port and a drain port that communicate through the middle of the inner ring.

[0007] The drum assembly includes a first panel, a second panel, and a filter layer arranged coaxially. The filter layer is circumferentially connected between the first panel and the second panel. The first panel has an opening coaxially arranged in the middle, and the edge of the opening has a raised outer ring. The outer ring fits against the outside of the inner ring, so that the feed port is connected to the inside of the drum assembly. A drive motor is provided on the side of the machine cover near the second panel. The output end of the drive motor passes through the machine cover and is connected to the second panel to drive the drum assembly to rotate.

[0008] The cleaning assembly includes several nozzles and a drain plate. The nozzles are distributed along the length of the drum assembly and are fixed to the inner top of the machine cover. The drain plate is located inside the drum assembly and below the nozzles. One end of the drain plate is inclined and connected to the inner wall of the machine cover and communicates with the drain port.

[0009] Furthermore, the sewage discharge port is located above the feed port.

[0010] Furthermore, the opposing surfaces of the first panel and the second panel are respectively provided with raised filter mounting rings, and the two ends of the filter layer are fixed by being sleeved on the outer layer of the corresponding filter mounting ring.

[0011] Furthermore, a water inlet is provided on one side of the machine cover, and the nozzles are connected to the water inlet via pipes.

[0012] Furthermore, the bottom of the machine cover is provided with a collection area, and the bottom of the machine cover is provided with a drain outlet communicating with the collection area.

[0013] Furthermore, a support frame is provided at the bottom of the cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The drum mechanism provided by this utility model achieves seamless connection between the feed inlet and the inside of the drum by tightly fitting the raised inner ring of the inner wall of the machine cover with the outer ring of the drum assembly, thus avoiding leakage and ensuring stable pressure during centrifugal separation and improving filtration efficiency. The nozzles of the cleaning assembly are distributed along the length of the drum, and with the inclined drain plate design, they can fully cover the surface of the filter layer. The cleaning liquid and residues are quickly discharged through the drain port, reducing manual intervention and significantly improving the cleaning efficiency and hygiene standards of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram showing the connection and distribution of the drum assembly and the cleaning assembly in an embodiment of this utility model;

[0018] Figure 3 This is an exploded view of the drum assembly according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the inner wall structure of the machine cover according to an embodiment of the present utility model;

[0020] Numbering on the map:

[0021] 1-Machine cover, 2-Drum assembly, 3-Cleaning assembly, 4-Drive motor, 5-Frame;

[0022] 101-Inner ring body, 102-Infeed interface, 103-Drainage interface, 104-Water inlet, 105-Collection area, 106-Drain outlet;

[0023] 21-First panel, 22-Second panel, 23-Filter layer, 24-Filter mounting ring;

[0024] 211-Outer ring body;

[0025] 31-Sprayer head, 32-Drainage plate, 33-Pipe. Detailed Implementation

[0026] 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.

[0027] like Figure 1-4 As shown, this utility model provides a drum structure for a centrifuge, mainly used in centrifuges to achieve wastewater filtration and separation. Its structure is rationally designed, effectively improving filtration efficiency and cleaning effect, and reducing material residue. The structure mainly includes a casing 1, a rotating drum assembly 2 located inside the casing 1 for filtration, and a cleaning assembly 3 located inside the casing 1 for cleaning. The drum assembly 2 performs the filtration operation, while the cleaning assembly 3 cleans the filtered drum assembly 2.

[0028] The shroud 1 serves as the external protection and support component for the entire drum structure. It can be made entirely of stainless steel, possessing good corrosion resistance and structural strength. The inner wall of the shroud 1 has a protruding inner ring 101, which can be integrally formed with the shroud 1 or fixed to the inner wall of the shroud 1 by welding or other methods. The inner ring 101 provides a sealing and positioning basis for the mating of the drum assembly 2 and the shroud 1.

[0029] On one side of the machine cover 1, there is a feed inlet 102 and a drain outlet 103. Both of these outlets are connected to the inside of the machine cover 1 through the middle of the inner ring 101. The drain outlet 103 is preferably located above the feed inlet 102. This layout is more conducive to the discharge of sewage and reduces the residue of sewage near the feed inlet 102.

[0030] A water inlet 104 is provided on one side of the housing 1, which is used to connect to an external water supply device to provide water for the cleaning components 3. A collection area 105 is provided at the bottom of the housing 1. The collection area 105 has a funnel-shaped structure to facilitate the collection of filtrate produced during filtration and some wastewater that may drip during the cleaning process. Simultaneously, a drain outlet 106 is provided at the bottom of the housing 1, which communicates with the collection area 105. Liquid collected in the collection area 105 can be discharged outside the housing 1 through the drain outlet 106.

[0031] In addition, a frame 5 is installed at the bottom of the cover 1. The frame 5 is made of high-strength steel and is used to support and fix the entire drum structure to ensure its stability during operation.

[0032] The drum assembly 2 is the core component for achieving the filtration function, comprising a first panel 21, a second panel 22, and a filter layer 23 arranged coaxially. Both the first panel 21 and the second panel 22 are made of metal, possessing high strength and wear resistance. The filter layer 23 can be made of filter cloth, metal mesh, or other filter materials, and is circumferentially connected between the first panel 21 and the second panel 22, forming a cylindrical structure. To facilitate the installation and fixation of the filter layer 23, raised filter mounting rings 24 are provided on the opposite surfaces of the first panel 21 and the second panel 22. The two ends of the filter layer 23 are fixed by fitting them onto the outer layer of the corresponding filter mounting rings 24. This fixing method not only simplifies installation but also ensures a tight seal between the filter layer 23 and the panels, preventing material leakage from gaps.

[0033] The first panel 21 has an opening coaxially arranged in the middle for material to enter the drum assembly 2. The edge of the opening has a raised outer ring 211, which is integrally formed with the first panel 21. When the drum assembly 2 is installed inside the machine cover 1, the outer ring 211 rotates against the outer side of the inner ring 101. This tight fit creates a good sealing seal, ensuring that the feed inlet 102 accurately connects to the interior of the drum assembly 2, guaranteeing smooth material entry.

[0034] A drive motor 4 is provided on the side of the machine cover 1 near the second panel 22. The drive motor 4 is installed on the outer wall of the machine cover 1 by bolts or other fasteners. Its output end passes through the machine cover 1 and is connected to the second panel 22. Specifically, it can be connected by a key or flange. It is used to drive the drum assembly 2 to rotate at high speed and use centrifugal force to filter the material.

[0035] The cleaning assembly 3 is used to clean the drum assembly 2 after filtration to prevent filter residue from affecting subsequent filtration. It includes several nozzles 31 and a drain plate 32. The top of the housing 1 can be opened for installing the cleaning assembly 3. The nozzles 31 are evenly distributed along the length of the drum assembly 2, and the number of nozzles 31 can be set according to the length of the drum assembly 2 and cleaning requirements. The nozzles 31 are connected to the water inlet 104 via pipes 33, and water introduced into the water inlet 104 is distributed to each nozzle 31 via pipes 33. During fixing, the two ends of the pipes 33 can be fixed by inserting them into the inner walls of the side plates of the housing 1. The nozzles 31 can be high-pressure atomizing nozzles, which can evenly spray water onto the inner wall of the drum assembly 2 and the filter layer 23, improving the cleaning effect.

[0036] The drain plate 32 is located inside the drum assembly 2 and below the nozzle 31, and is made of corrosion-resistant metal. One end of the drain plate 32 is inclined to the inner wall of the cover 1 and communicates with the drain port 103. Its inclination angle is set to 15-45 degrees, so that the wastewater generated during cleaning can flow smoothly along the drain plate 32 into the drain port 103 and be discharged.

[0037] When the centrifuge's drum structure is in operation, the material to be filtered is first introduced through the feed inlet 102. Since the outer ring 211 of the drum assembly 2 is tightly fitted with the inner ring 101 of the casing 1, the material enters the interior of the drum assembly 2 through the opening of the first panel 21 via the feed inlet 102.

[0038] Start the drive motor 4, which drives the drum assembly 2 to rotate at high speed. Under the action of centrifugal force, the liquid in the material is thrown out through the filter layer 23 into the machine cover 1, and then flows into the collection area 105 at the bottom, and finally discharged through the drain outlet 106, while the solid filter residue is trapped inside the drum assembly 2.

[0039] After filtration is complete, the drum assembly 2 needs to be cleaned. Clean water is introduced through the inlet 104 and transported to each nozzle 31 via pipe 33. The nozzles 31 spray high-pressure water onto the inner wall of the drum assembly 2 and the filter layer 23 to rinse away any remaining filter residue. The wastewater generated during cleaning falls onto the drain plate 32. Due to the inclined design of the drain plate 32, the wastewater flows along the drain plate 32 to the drain port 103 on the inner wall of the casing 1, and is finally discharged outside the casing 1. Throughout the entire operation, the frame 5 provides stable support for the entire structure, ensuring the normal operation of the equipment.

[0040] Compared with traditional technologies, the drum mechanism provided by this technology achieves seamless connection between the feed inlet 102 and the inside of the drum through the tight fit between the protruding inner ring 101 on the inner wall of the machine cover 1 and the outer ring 211 of the drum assembly 2, avoiding leakage and ensuring stable pressure during centrifugal separation, thus improving filtration efficiency. The nozzles 31 of the cleaning assembly 3 are distributed along the length of the drum, and with the design of the inclined drain plate 32, they can fully cover the surface of the filter layer. The cleaning liquid and residues are quickly discharged through the drain port, reducing manual intervention and significantly improving the equipment cleaning efficiency and hygiene standards.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A drum structure for a centrifuge, comprising a casing, a drum assembly for filtration that rotates within the casing, and a cleaning assembly for cleaning that is located within the casing, characterized in that: The inner wall of the machine cover is provided with a raised inner ring, and one side of the machine cover is provided with a feed port and a drain port that are connected through the middle of the inner ring. The drum assembly includes a first panel, a second panel, and a filter layer arranged coaxially. The filter layer is circumferentially connected between the first panel and the second panel. The first panel has an opening coaxially arranged in the middle, and the edge of the opening has a raised outer ring. The outer ring fits against the outside of the inner ring, so that the feed port is connected to the inside of the drum assembly. A drive motor is provided on the side of the machine cover near the second panel. The output end of the drive motor passes through the machine cover and is connected to the second panel to drive the drum assembly to rotate. The cleaning assembly includes several nozzles and a drain plate. The nozzles are distributed along the length of the drum assembly and are fixed to the inner top of the machine cover. The drain plate is located inside the drum assembly and below the nozzles. One end of the drain plate is inclined and connected to the inner wall of the machine cover and communicates with the drain port.

2. The drum structure for a centrifuge according to claim 1, characterized in that: The sewage discharge port is located above the feed port.

3. A bowl structure for a centrifuge as defined in claim 1, wherein: The first panel and the second panel are respectively provided with raised filter mounting rings on their opposite sides, and the two ends of the filter layer are fixed by being sleeved on the outer layer of the corresponding filter mounting ring.

4. A bowl structure for a centrifuge as defined in claim 1, wherein: A water inlet is provided on one side of the machine cover, and the nozzles are connected to the water inlet through pipes.

5. A bowl structure for a centrifuge as defined in claim 1, wherein: The bottom of the machine cover is provided with a collection area, and the bottom of the machine cover is provided with a drain outlet communicating with the collection area.

6. A bowl structure for a centrifuge as claimed in any one of claims 1 to 5, wherein: The bottom of the machine cover is provided with a support frame.

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