Centrifugal garbage dehydrator

By setting a feeding channel and a discharge port on the screw, the problem of limited feeding in the existing technology is solved, realizing continuous operation and efficient dewatering of the centrifugal waste dewatering machine, simplifying the structure and reducing manufacturing costs.

CN223840786UActive Publication Date: 2026-01-27KEJIE HONGRUN (LANGFANG) ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520208919.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-27
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

The existing feeding method of kitchen waste dewatering devices has defects, which restricts the feeding during screw operation, affecting the continuous operation capability and dewatering efficiency of the equipment. In addition, the structure is complex, occupies a large space, and has high cost.

Method used

Design a centrifugal waste dewatering machine with a feeding channel on the screw connected to the inlet and an outlet on the outer wall. Waste can enter through the inlet and be dewatered while the screw is running. The screw and the spin dryer operate at different speeds, simplifying the structure and reducing manufacturing costs.

Benefits of technology

It enables continuous feeding and dehydration of waste, improves the dehydration efficiency of the equipment, and has a compact structure, reducing space occupation and manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a centrifugal garbage dehydrator. The centrifugal garbage dehydrator comprises an outer barrel, a spin-drying barrel and a spiral unloader which are sequentially arranged from outside to inside, a feeding hole is formed in the top of the outer barrel; the spiral discharger comprises a screw rod and blades, the blades are spirally arranged in the axial direction of the screw rod, a feeding channel is formed in the center of the screw rod, a discharging opening is formed in the outer wall of the screw rod, and the discharging opening is communicated with the feeding opening through the feeding channel; and a discharge port is formed in the upper part of the outer cylinder body and corresponds to the upper ends of the blades. By means of the arrangement, under the condition that the screw does not stop running, garbage can still enter through the feeding port and smoothly reach the discharging port of the screw through the feeding channel, that is, the garbage can be continuously fed and dehydrated in the continuous rotation process of the screw, and the dehydration efficiency is improved. Moreover, a complicated structure does not need to be arranged on the top of the outer barrel, the structure is compact, the occupied space is small, and the manufacturing cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of waste dewatering technology, and in particular to a centrifugal waste dewatering machine. Background Technology

[0002] Kitchen waste is often mixed with water. To facilitate transportation, it needs to be separated into wet and dry waste.

[0003] Furthermore, application number CN201620517714.4 discloses a kitchen waste dewatering and slag removal device. The waste enters the feeding chamber through the inlet of the top cover and then into the dewatering cylinder. The dewatering cylinder rotates at high speed driven by a motor, and water is thrown into the water accumulation chamber between the outer cylinder and the dewatering cylinder under centrifugal force, flowing out through the drain outlet. Simultaneously, the screw, driven by a low-speed motor, pushes the dewatered slag upwards and discharges it from the slag outlet. While this method can achieve dry and wet separation of kitchen waste, the following technical problems remain: the waste feeding method is flawed. Waste needs to enter the feeding chamber through the inlet of the top cover and then enter between the screw and the dewatering cylinder. When the screw is running, directly feeding waste into the feeding chamber inside the top cover can be interfered with by the operating components, or the equipment may need to be paused for safe feeding, affecting the continuity and efficiency of waste treatment. Moreover, the need to install the feeding chamber, guide plate, and discharge chamber on the top cover results in a large overall size of the top cover, occupying a lot of space and increasing manufacturing costs.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a centrifugal waste dewatering machine to solve the technical problem that the feeding method design of existing kitchen waste dewatering devices has defects, and the feeding process is restricted during screw operation, affecting the continuous operation capacity and dewatering efficiency of the equipment. The various technical effects of the preferred technical solution provided by this utility model are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides a centrifugal garbage dewatering machine, comprising an outer cylinder, a spin-drying bucket, and a screw unloader arranged sequentially from the outside to the inside; the top of the outer cylinder is provided with a feed inlet; the screw unloader includes a screw and blades, the blades being arranged in a spiral shape along the axial direction of the screw, a feed channel being provided at the center of the screw, and a discharge port being provided on the outer wall of the screw, the discharge port being connected to the feed inlet through the feed channel; a discharge port is provided at the upper part of the outer cylinder, the discharge port being correspondingly provided with the upper end of the blades.

[0008] Preferably, a drainage cavity is formed between the spin-drying tub and the outer cylinder, and a drainage outlet is provided at the lower part of the outer cylinder, which is connected to the drainage cavity.

[0009] Preferably, the device also includes a motor for driving the spin dryer and the screw unloader.

[0010] Preferably, it also includes a base, on which the outer cylinder and the motor are mounted.

[0011] Preferably, the spin dryer is connected to the motor via a first transmission assembly, and the screw unloader is connected to the motor via a second transmission assembly and a differential, so that the spin dryer and the screw unloader operate at different speeds.

[0012] Preferably, there are multiple discharge ports, which are arranged sequentially at intervals along the circumference of the screw.

[0013] Preferably, the bottom plate of the spin dryer has multiple dehydration holes, which are connected to the drainage chamber.

[0014] Preferably, the device further includes a cleaning assembly, which includes multiple cleaning pipes disposed on the outer cylinder, with one end connected to a cleaning water inlet device and the other end extending along an axial direction parallel to the screw to the space between the outer cylinder and the spin dryer.

[0015] The preferred technical solution of this utility model can also produce at least the following technical effects:

[0016] This invention effectively avoids the design flaws in the feeding method of existing kitchen waste dewatering devices, where the feeding process is restricted during screw operation, affecting the continuous operation capacity and dewatering efficiency of the equipment. This invention provides a centrifugal waste dewatering machine, comprising an outer cylinder, a spin-drying bucket, and a screw unloader arranged sequentially from the outside to the inside; a feeding port is provided at the top of the outer cylinder; the screw unloader includes a screw and blades, with the blades spirally arranged along the axial direction of the screw; a feeding channel is provided at the center of the screw, and a discharge port is provided on the outer wall of the screw, communicating with the feeding port through the feeding channel; a discharge port is provided at the upper part of the outer cylinder, corresponding to the upper end of the blades. This invention features a feeding channel connected to the inlet on the screw and an outlet on the outer wall of the screw, also connected to the feeding channel. This allows waste to continue entering through the inlet and smoothly reaching the outlet of the screw even when the screw is running. In other words, waste can be continuously fed in and dehydrated while the screw is rotating, improving dehydration efficiency. Furthermore, it eliminates the need for complex structures on the top of the outer cylinder, resulting in a compact structure, small footprint, and reduced manufacturing costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a structural schematic diagram of a centrifugal waste dewatering machine provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the outer cylinder and the spin-drying bucket of a centrifugal garbage dewatering machine provided by this utility model in a perspective view;

[0020] Figure 3 This is a structural schematic diagram from another perspective of a centrifugal waste dewatering machine provided by this utility model;

[0021] Figure 4 yes Figure 3 AA-direction cross-section.

[0022] In the picture:

[0023] 1. Outer cylinder; 11. Feed inlet; 12. Discharge outlet; 13. Drain outlet; 14. Drainage chamber;

[0024] 2. Spin-drying drum; 21. Dehydration hole;

[0025] 3. Screw feeder; 31. Screw; 311. Feed channel; 312. Discharge port; 32. Blades;

[0026] 4. Motor; 5. Base;

[0027] 6. First transmission assembly; 61. First driving pulley; 62. First transmission belt; 63. First driven pulley;

[0028] 7. Second transmission assembly; 71. Second driving pulley; 72. Second transmission belt; 73. Second driven pulley;

[0029] 8. Clean the pipes. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] like Figures 1-4 As shown, this utility model provides a centrifugal garbage dewatering machine, including an outer cylinder 1, a spin-drying bucket 2, and a screw unloader 3 arranged sequentially from the outside to the inside; the top of the outer cylinder 1 is provided with a feed inlet 11; the screw unloader 3 includes a screw 31 and blades 32, the blades 32 are arranged in a spiral shape along the axial direction of the screw 31, the center of the screw 31 is provided with a feed channel 311, and the outer wall of the screw 31 is provided with a discharge port 312, which is connected to the feed inlet 11 through the feed channel 311; the upper part of the outer cylinder 1 is provided with a discharge port 12, which is correspondingly provided with the upper end of the blades 32.

[0032] By providing a feeding channel 311 on the screw 31 that communicates with the inlet 11, and an outlet 312 on the outer wall of the screw 31 that communicates with the feeding channel 311, waste can still enter through the inlet 11 and smoothly reach the outlet 312 of the screw 31 while the screw 31 is running. This means waste can be continuously fed in and dehydrated while the screw 31 is rotating, improving dehydration efficiency. Furthermore, it eliminates the need for a complex structure on the top of the outer cylinder 1, resulting in a compact structure, small footprint, and reduced manufacturing costs.

[0033] Furthermore, the feed channel 311 extends in an axial direction parallel to the screw 31, and the waste moves smoothly along the feed channel 311 to the discharge port 312 under the action of gravity.

[0034] As an optional implementation, such as Figure 2 , Figure 4 As shown, a drain chamber 14 is formed between the spin dryer 2 and the outer cylinder 1. A drain outlet 13 is provided at the lower part of the outer cylinder 1, and the drain outlet 13 is connected to the drain chamber 14.

[0035] The spin dryer 2 is a conventional drum body in the prior art that can achieve dehydration under high-speed rotation.

[0036] The drain chamber 14 is used to collect the water that has been thrown out. The water is discharged through the drain outlet 13.

[0037] As an optional implementation, a motor 4 is also included, which drives the spin dryer 2 and the screw unloader 3 to operate.

[0038] As an optional implementation, such as Figure 1 , Figure 2 As shown, it also includes a base 5, an outer cylinder 1, and a motor 4 mounted on the base 5.

[0039] This configuration increases overall stability and reliability.

[0040] As an optional implementation, such as Figure 3 , Figure 4 As shown, the spin dryer 2 is connected to the motor 4 via the first transmission assembly 6, and the screw unloader 3 is connected to the motor 4 via the second transmission assembly 7 and the differential, so that the spin dryer 2 and the screw unloader 3 operate at different speeds.

[0041] Furthermore, the first transmission assembly 6 includes a first driving pulley 61, a first transmission belt 62, and a first driven pulley 63. The first transmission belt 62 is mounted on the first driving pulley 61 and the first driven pulley 63. The first driving pulley 61 is connected to the output shaft of the motor 4, and the first driven pulley 63 is connected to the spin-drying drum 2, driving the spin-drying drum 2 to rotate.

[0042] The second transmission assembly 7 includes a second drive pulley 71, a second transmission belt 72, and a second driven pulley 73. The second transmission belt 72 is mounted on the second drive pulley 71 and the second driven pulley 73. The second drive pulley 71 is connected to the output shaft of the motor 4 through a differential, and the second driven pulley 73 is connected to the screw 31, driving the screw 31 to drive the blades 32 to rotate at a speed different from that of the spin dryer 2.

[0043] This configuration allows the spin dryer 2 and the screw unloader 3 to operate at different speeds to meet the dewatering requirements.

[0044] It should be noted that the specific transmission connection relationships between the spin dryer 2, the first transmission component 6 and the motor 4, as well as the screw unloader 3, the second transmission component 7, the differential and the motor 4, are existing technologies and will not be elaborated here.

[0045] As an optional implementation, such as Figure 2 , Figure 4 As shown, there are multiple discharge ports 312, which are arranged sequentially at intervals along the circumference of the screw 31.

[0046] This design ensures that the waste is evenly distributed within the spin dryer 2 during the rotation of the screw 31.

[0047] As an optional implementation, such as Figure 2 As shown, the bottom plate of the spin dryer 2 has multiple dehydration holes 21, which are connected to the drain chamber 14.

[0048] With this configuration, water can flow from the dehydration hole 21 into the drainage chamber 14, improving the dehydration efficiency.

[0049] As an optional implementation, such as Figure 1 , Figure 2 As shown, it also includes a cleaning assembly, which includes multiple cleaning pipes 8. The cleaning pipes 8 are installed on the outer cylinder 1, with one end connected to the cleaning water inlet device and the other end extending along the axial direction parallel to the screw 31 to the space between the outer cylinder 1 and the spin dryer 2.

[0050] Furthermore, multiple cleaning nozzles are provided on the cleaning pipe 8, which are arranged circumferentially along the cleaning pipe 8 for cleaning the inner wall of the outer cylinder 1 and the spin-drying tub 2.

[0051] The working principle of this utility model is as follows: Kitchen waste is continuously or intermittently fed into the inlet 11 and moves downward along the feeding channel 311. Due to the continuous rotation of the screw 31, when the waste reaches the discharge port 312 of the screw 31, it is evenly distributed in the spin-drying drum 2. Driven by the motor 4, the spin-drying drum 2 rotates at high speed, generating centrifugal force. Under the action of centrifugal force, the water in the waste is thrown out and flows into the drain chamber 14 through the dewatering hole 21, and is finally discharged through the drain port 13. The dehydrated dry waste is smoothly and continuously pushed upward by the blades 32 of the screw unloader 3 towards the discharge port 12 and discharged smoothly.

[0052] After the equipment has finished operating, cleaning fluid is sprayed onto the inner wall of the outer cylinder 1 and the spin-drying tank 2 through the cleaning pipe 8 to clean them and prevent odors and bacterial growth. The wastewater after cleaning is discharged through the drain outlet 13.

[0053] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0054] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "a particular example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A centrifugal waste dewatering machine, characterized in that, The device includes an outer cylinder, a spin dryer, and a screw feeder arranged sequentially from the outside to the inside. The top of the outer cylinder has a feed inlet. The screw feeder includes a screw and blades, with the blades spirally arranged along the axial direction of the screw. A feed channel is located at the center of the screw, and a discharge port is formed on the outer wall of the screw, communicating with the feed inlet through the feed channel. A discharge port is located at the top of the outer cylinder, corresponding to the upper end of the blades.

2. A centrifugal waste dewatering machine according to claim 1, characterized in that, A drainage chamber is formed between the spin dryer and the outer cylinder. A drain outlet is provided at the lower part of the outer cylinder, and the drain outlet is connected to the drainage chamber.

3. A centrifugal waste dewatering machine according to claim 1, characterized in that, It also includes a motor for driving the spin dryer and the screw unloader.

4. A centrifugal waste dewatering machine according to claim 3, characterized in that, It also includes a base, on which the outer cylinder and the motor are mounted.

5. A centrifugal waste dewatering machine according to claim 3, characterized in that, The spin dryer is connected to the motor via a first transmission assembly, and the screw unloader is connected to the motor via a second transmission assembly and a differential, so that the spin dryer and the screw unloader operate at different speeds.

6. A centrifugal waste dewatering machine according to claim 1, characterized in that, The number of discharge ports is multiple, and they are arranged sequentially at intervals along the circumference of the screw.

7. A centrifugal waste dewatering machine according to claim 2, characterized in that, The bottom plate of the spin dryer has multiple dehydration holes, which are connected to the drainage chamber.

8. A centrifugal waste dewatering machine according to claim 1, characterized in that, It also includes a cleaning assembly, which includes multiple cleaning pipes disposed on the outer cylinder, with one end connected to a cleaning water inlet device and the other end extending along an axial direction parallel to the screw to the space between the outer cylinder and the spin dryer.

Citation Information

Patent Citations

  • Kitchen garbage dross removal mechanism that dewaters

    CN205886366U