Filter screen structure for centrifugal dewaterer

Abstract

The utility model discloses a filter screen structure for centrifugal dewatering machine, including outer drum, the inside fixed connection of outer drum has a plurality of first connecting rod, the one end fixed connection of first connecting rod has inner drum, is set up a plurality of second filter holes on the inner drum, is set up a plurality of first filter holes on the outer drum, the inside fixed connection of inner drum has second connecting rod, the bottom fixed connection of second connecting rod has transmission rod, is provided with cleaning assembly on the transmission rod, the below of outer drum is provided with first discharge pipe, and the bottom of outer drum is provided with discharge assembly. In the utility model, the different size of particle is prevented from blocking through the different size of first filter hole and second filter hole on outer drum and inner drum, avoids the single drum and filters to cause the jam of excessive pressure.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal dehydration technology, and in particular to a filter screen structure for a centrifugal dehydrator. Background Technology

[0002] Centrifugal dewatering machines are highly efficient devices that utilize centrifugal force to achieve solid-liquid separation. They are widely used in municipal sewage and industrial wastewater treatment, as well as material dewatering. Their core structure consists of a rotating drum, a screw conveyor, and a differential gear. After the sludge enters the drum through a hollow rotating shaft, the centrifugal force generated by the high-speed rotation causes the solid particles, due to their higher density, to be thrown to the inner wall of the drum, forming a solid ring layer. The liquid forms a liquid ring layer on the inner side. The screw conveyor then slowly pushes the solid layer to the conical end of the drum for discharge, while the liquid overflows from the weir.

[0003] Most existing centrifugal dewatering machines use a single-screen filter structure. When centrifuging and filtering a large number of solid particles with different pore sizes, the pressure on a single screen is relatively high, leading to reduced efficiency. Furthermore, the material entering the screen tends to be unevenly distributed, concentrating on one side, resulting in excessive pressure on that side and causing damage to parts of the screen. To overcome these disadvantages, this invention provides a filter structure for centrifugal dewatering machines. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter structure for centrifugal dehydrators.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter screen structure for a centrifugal dewatering machine, comprising an outer drum, a plurality of first connecting rods fixedly connected inside the outer drum, an inner drum fixedly connected to one end of each first connecting rod, a plurality of second filter holes opened on the inner drum, a plurality of first filter holes opened on the outer drum, a second connecting rod fixedly connected inside the inner drum, a transmission rod fixedly connected to the bottom end of the second connecting rod, a cleaning component provided on the transmission rod, a first discharge pipe provided below the outer drum, a discharge component provided at the bottom end of the outer drum, a connecting component provided on the first discharge pipe, and a dispersing component provided at the top end of the second connecting rod.

[0006] Furthermore, the diameter of the first filter hole is smaller than that of the second filter hole.

[0007] Furthermore, the cleaning assembly includes a roller mounted on a transmission rod, one end of which has a circular hole, and the circular hole is rotatably connected to the transmission rod. Several brushes are fixedly connected to the roller.

[0008] Furthermore, the discharge assembly includes a second funnel fixedly connected to the bottom end of the outer roller, the bottom end of the second funnel being fixedly connected to one end of the first discharge pipe, a third funnel fixedly connected to the bottom end of the inner roller, and a second discharge pipe fixedly connected to the bottom end of the third funnel, which is located inside the first discharge pipe.

[0009] Furthermore, the connecting assembly includes a gear fixedly connected to the first discharge pipe, and a bearing is fixedly connected to the first discharge pipe below the gear.

[0010] Furthermore, the dispersing component includes a cone fixedly connected to the top of the second connecting rod, and a first funnel fixedly connected to the feed inlet at the bottom of the inner roller.

[0011] The beneficial effects of this utility model are:

[0012] In use, this invention uses the different sizes of the first and second filter holes on the outer and inner rollers to block particles of different sizes, avoiding excessive pressure and blockage caused by filtering with a single roller. The dispersing component disperses the material entering the inner roller evenly onto the inner wall of the inner roller, avoiding blockage caused by local accumulation. The cleaning component cleans the second filter hole on the inner roller, thereby preventing particles from accumulating in one place. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific 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.

[0014] Figure 1 : A perspective view of this utility model;

[0015] Figure 2 : Schematic diagram of the internal structure of this utility model;

[0016] Figure 3 : A schematic diagram of the cleaning component structure of this utility model;

[0017] Figure 4 : A cross-sectional view of this utility model.

[0018] The attached figures are labeled as follows:

[0019] 1. Outer roller; 2. First filter hole; 3. First funnel; 4. Second funnel; 5. First discharge pipe; 6. Bearing; 7. Gear; 8. Inner roller; 9. Second filter hole; 10. First connecting rod; 11. Second connecting rod; 12. Cone; 13. Transmission rod; 14. Third funnel; 15. Roller; 16. Round hole; 17. Brush; 18. Second discharge pipe. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4 As shown, a filter screen structure for a centrifugal dewatering machine is disclosed, comprising an outer roller 1, a plurality of first connecting rods 10 fixedly connected inside the outer roller 1, an inner roller 8 fixedly connected to one end of each first connecting rod 10, a plurality of second filter holes 9 formed on the inner roller 8, a plurality of first filter holes 2 formed on the outer roller 1, a second connecting rod 11 fixedly connected inside the inner roller 8, a transmission rod 13 fixedly connected to the bottom end of the second connecting rod 11, a cleaning component provided on the transmission rod 13, a first discharge pipe 5 provided below the outer roller 1, a discharge component provided at the bottom end of the outer roller 1, a connecting component provided on the first discharge pipe 5, and a dispersing component provided at the top end of the second connecting rod 11.

[0022] As shown in the figure, the diameter of the first filter hole 2 is smaller than that of the second filter hole 9.

[0023] As shown in the figure, the cleaning assembly includes a roller 15 mounted on a transmission rod 13. One end of the roller 15 has a circular hole 16, which is rotatably connected to the transmission rod 13. Several brushes 17 are fixedly connected to the roller 15 for cleaning large particles blocked on the second filter hole 9.

[0024] As shown in the figure, the discharge assembly includes a second funnel 4 fixedly connected to the bottom of the outer roller 1. The bottom of the second funnel 4 is fixedly connected to one end of the first discharge pipe 5. The bottom of the inner roller 8 is fixedly connected to a third funnel 14. The bottom of the third funnel 14 and located inside the first discharge pipe 5 are fixedly connected to a second discharge pipe 18, which is used to discharge large particles in the inner roller 8 and small particles in the outer roller 1.

[0025] As shown in the figure, the connecting assembly includes a gear 7 fixedly connected to the first discharge pipe 5, and a bearing 6 fixedly connected to the first discharge pipe 5 and below the gear 7, for connecting the device to the centrifugal dewatering machine.

[0026] As shown in the figure, the dispersion component includes a cone 12 fixedly connected to the top of the second connecting rod 11, and a first funnel 3 fixedly connected to the feed port at the bottom of the inner roller 8, which is used to disperse the mixture entering the inner roller 8 so that it is evenly distributed on the inner wall of the inner roller 8.

[0027] Working principle: When using the device, first check whether the entire device is intact. After the inspection, place the device into the centrifugal dewatering machine through the bearing 6, and then connect it to the power unit on the centrifugal dewatering machine through the gear 7. Then start the centrifugal dewatering machine to make the device rotate. During the rotation, the material to be dewatered is added to the inner drum 8 through the first funnel 3. When it enters the inner drum 8, it passes through the cone 12, which makes it evenly dispersed on the inner drum 8. During the centrifugation process, the brush 17 on the roller 15 is driven by the rotational inertia of the water flow, thereby sweeping away the large particles blocked on the second filter hole 9, so that the small particles and water can be discharged from the second filter hole 9. The water then passes through the first filter hole 2 and leaves the first filter hole 2. The small particles are blocked by the first filter hole 2. When the speed decreases, the centrifugal force generated cannot keep the large and small particles attached to the inner wall of the inner drum 8 and the outer drum 1. Then they are discharged through the first discharge pipe 5 and the second discharge pipe 18 respectively.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filter screen structure for a centrifugal dewatering machine, comprising an outer drum (1), characterized in that: The outer roller (1) is fixedly connected to a plurality of first connecting rods (10), one end of which is fixedly connected to an inner roller (8). The inner roller (8) has a plurality of second filter holes (9). The outer roller (1) has a plurality of first filter holes (2). The inner roller (8) is fixedly connected to a second connecting rod (11). The bottom end of the second connecting rod (11) is fixedly connected to a transmission rod (13). The transmission rod (13) is provided with a cleaning component. The outer roller (1) is provided with a first discharge pipe (5). The bottom end of the outer roller (1) is provided with a discharge component. The first discharge pipe (5) is provided with a connecting component. The top end of the second connecting rod (11) is provided with a dispersing component.

2. The filter screen structure for a centrifugal dehydrator according to claim 1, characterized in that: The diameter of the first filter hole (2) is smaller than that of the second filter hole (9).

3. The filter screen structure for a centrifugal dehydrator according to claim 1, characterized in that: The cleaning assembly includes a roller (15) mounted on a transmission rod (13). One end of the roller (15) has a circular hole (16) and is rotatably connected to the transmission rod (13). Several brushes (17) are fixedly connected to the roller (15).

4. The filter screen structure for a centrifugal dehydrator according to claim 1, characterized in that: The discharge assembly includes a second funnel (4) fixedly connected to the bottom of the outer roller (1), the bottom of the second funnel (4) being fixedly connected to one end of the first discharge pipe (5), the bottom of the inner roller (8) being fixedly connected to a third funnel (14), and the bottom of the third funnel (14) being located inside the first discharge pipe (5) and a second discharge pipe (18) being fixedly connected to it.

5. The filter screen structure for a centrifugal dehydrator according to claim 1, characterized in that: The connecting assembly includes a gear (7) fixedly connected to the first discharge pipe (5), and a bearing (6) fixedly connected to the first discharge pipe (5) and below the gear (7).

6. The filter screen structure for a centrifugal dehydrator according to claim 1, characterized in that: The dispersing component includes a cone (12) fixedly connected to the top of the second connecting rod (11), and a first funnel (3) fixedly connected to the bottom feed port of the inner roller (8).

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