Advanced treatment equipment for concentrated solution

Abstract

The utility model discloses concentrated solution deep treatment equipment, relates to the technical field of concentrated solution deep treatment, and aims to solve the technical problems that the bottom of a nanofiltration membrane is easily blocked and the surface filtering effect of the nanofiltration membrane is not uniform when the concentrated solution is subjected to nanofiltration at present, the concentrated solution deep treatment equipment comprises a nanofiltration box, and the interior of the nanofiltration box is divided into an upper cavity and a lower cavity through a partition plate; a nanofiltration assembly is arranged in the upper cavity and comprises a nanofiltration cylinder movably connected into the upper cavity, a screening cylinder is arranged in the nanofiltration cylinder, the bottom of the screening cylinder is rotationally connected with the bottom of the nanofiltration cylinder through a bearing seat, a plurality of arc-shaped guide plates are annularly arranged on the inner wall of the nanofiltration cylinder at equal intervals, and a nanofiltration membrane is arranged on the outer surface of the nanofiltration cylinder. A large-aperture filter screen is arranged on the surface of the screening barrel, a transmission assembly is arranged in the lower cavity, and the transmission assembly comprises a direct current motor fixedly connected into the lower cavity. The utility model has the advantage that the concentrated solution can be fully contacted and filtered with the surface of the nanofiltration membrane.

Description

Technical Field

[0001] The utility model relates to the technical field of deep treatment of concentrated liquid, and more specifically, to a deep treatment device for concentrated liquid. Background Art

[0002] Regardless of whether landfill or incineration is adopted for garbage treatment, the treatment of landfill leachate is a technical problem therein. Leachate belongs to high-concentration and difficult-to-degrade organic wastewater, which is characterized by complex composition, high pollutant concentration, imbalance of biological nutrition ratio, high chroma, strong odor, and poor biodegradability.

[0003] In the existing equipment for treating concentrated liquid, it is usually necessary to carry out nanofiltration treatment on the concentrated liquid. During the nanofiltration process, the concentrated liquid is generally conveyed to the nanofiltration device through a pipeline for nanofiltration. Under the action of gravity, the concentrated liquid passes through the lower end of the nanofiltration membrane in the nanofiltration device for filtration. After long-term use, it is easy to cause blockage at the bottom of the nanofiltration membrane and uneven filtration effect on the surface layer of the nanofiltration membrane. Therefore, it is particularly important to provide a deep treatment device for concentrated liquid that can uniformly filter the concentrated liquid from the surface of the nanofiltration membrane to improve the filtration effect. In view of this, we propose a deep treatment device for concentrated liquid. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a deep treatment device for concentrated liquid to solve the technical problems that the bottom of the nanofiltration membrane is easily blocked and the surface filtration effect of the nanofiltration membrane is uneven during the current nanofiltration of concentrated liquid.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A deep treatment device for concentrated liquid, including a nanofiltration tank, the interior of the nanofiltration tank is divided into an upper cavity and a lower cavity by a partition board, and a nanofiltration component is arranged in the upper cavity;

[0006] The nanofiltration component includes a nanofiltration cylinder movably connected in the upper cavity, a sieve cylinder is arranged inside the nanofiltration cylinder, the bottom of the sieve cylinder is rotatably connected to the bottom of the nanofiltration cylinder through a bearing seat, a plurality of arc-shaped guide plates are arranged at equal intervals in a ring on the inner wall of the nanofiltration cylinder, and a nanofiltration membrane is arranged on the outer surface of the nanofiltration cylinder.

[0007] By setting the nanofiltration component, the utility model can perform secondary sieving and nanofiltration on the concentrated liquid, and through the arc-shaped guide plates, the concentrated liquid can be guided to the surface of the nanofiltration cylinder for uniform nanofiltration, which can avoid the blockage of the nanofiltration membrane.

[0008] Preferably, a large-aperture filter screen is arranged on the surface of the sieve cylinder.

[0009] Preferably, a transmission component is arranged in the lower cavity;

[0010] The transmission assembly includes a DC motor fixedly connected inside the lower cavity, and a planetary gear disc is fixedly connected to the output end of the DC motor.

[0011] Preferably, the sun gear inside the planetary gear disc is fixedly connected to the bottom of the sieving cylinder through a connecting rod, and the surface of the planetary gear disc is fixedly connected to the bottom of the nanofiltration cylinder.

[0012] Preferably, a feed hole is formed in the upper surface of the nanofiltration tank, a feed pipe is fixedly arranged in the feed hole, and the sieving cylinder is communicated with the feed pipe through the feed hole.

[0013] Preferably, a discharge pipe is fixedly arranged on the surface of the nanofiltration tank, the discharge pipe is communicated with the upper cavity through a discharge hole, and valves are arranged inside both the feed pipe and the discharge pipe.

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

[0015] 1. By designing the nanofiltration and transmission structures, when the DC motor operates, the sieving cylinder and the nanofiltration cylinder can be driven to rotate in opposite directions simultaneously through the planetary gear disc. The centrifugal force generated by the rotation of the concentrated liquid in the sieving cylinder can cause the axis of the concentrated liquid to deviate from the center and rotate into the interior of the nanofiltration cylinder. At this time, the rotation direction of the nanofiltration cylinder is opposite to the rotation direction of the concentration, enabling the concentrated liquid to come into contact with the arc-shaped guide plate, and the arc-shaped surface of the arc-shaped guide plate guides the concentrated liquid to the surface of the nanofiltration cylinder, and is filtered through the nanofiltration membrane, thereby achieving the effect that the concentrated liquid can fully contact and filter on the surface of the nanofiltration membrane.

[0016] 2. By designing the sieving cylinder structure, the present utility model can preliminarily screen the suspended matters and gravels in the concentrated liquid, and then further deeply process the sieved concentrated liquid through the nanofiltration membrane, achieving the effect of multi-layer filtration and deep processing of the concentrated liquid, and further solving the problem of low nanofiltration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a structural sectional view of the present utility model;

[0019] Figure 3 is a structural sectional view of the nanofiltration assembly of the present utility model;

[0020] Figure 4 is a structural sectional view of the nanofiltration cylinder of the present utility model.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1. Nanofiltration tank; 2. Nanofiltration component; 201. Nanofiltration cylinder; 202. Sieve cylinder; 203. Bearing seat; 204. Arc-shaped deflector; 205. Nanofiltration membrane; 206. Large-aperture filter screen; 3. Transmission component; 301. DC motor; 302. Planetary gear disc; 303. Connecting rod; 4. Feed pipe; 5. Discharge pipe; 6. Valve. Detailed implementation manner

[0023] As Figures 1 to 4 shown, a deep treatment device for concentrated liquid involved in the present utility model includes a nanofiltration tank 1. The nanofiltration tank 1 is divided into an upper cavity and a lower cavity by a partition. A nanofiltration component 2 is arranged in the upper cavity;

[0024] The nanofiltration component 2 includes a nanofiltration cylinder 201 movably connected in the upper cavity. A sieve cylinder 202 is arranged inside the nanofiltration cylinder 201. The bottom of the sieve cylinder 202 is rotatably connected to the bottom of the nanofiltration cylinder 201 through a bearing seat 203. A plurality of arc-shaped deflectors 204 are arranged at equal intervals in a ring shape on the inner wall of the nanofiltration cylinder 201. A nanofiltration membrane 205 is arranged on the outer surface of the nanofiltration cylinder 201. A large-aperture filter screen 206 is arranged on the surface of the sieve cylinder 202. By arranging the arc-shaped deflectors 204, the frictional force on the concentrated liquid can be reduced through the smoothness of its arc surface, and the flow direction thereof can be guided so that it can be in full contact with the surface of the nanofiltration cylinder 201.

[0025] In an embodiment of the present utility model, a transmission component 3 is arranged in the lower cavity;

[0026] The transmission component 3 includes a DC motor 301 fixedly connected in the lower cavity. The output end of the DC motor 301 is fixedly connected with a planetary gear disc 302. The sun gear in the planetary gear disc 302 is fixedly connected with the bottom of the sieve cylinder 202 through a connecting rod 303. The surface of the planetary gear disc 302 is fixedly connected with the bottom of the nanofiltration cylinder 201. By arranging the planetary gear disc 302, the sieve cylinder 202 and the nanofiltration cylinder 201 can be rotated in opposite directions, so that the concentrated liquid can generate a centrifugal effect in the sieve cylinder 202.

[0027] In an embodiment of the present utility model, a feed hole is opened on the upper surface of the nanofiltration tank 1. A feed pipe 4 is fixedly arranged in the feed hole. The sieve cylinder 202 is communicated with the feed pipe 4 through the feed hole. A discharge pipe 5 is fixedly arranged on the surface of the nanofiltration tank 1. The discharge pipe 5 is communicated with the upper cavity through a discharge hole. Valves 6 are arranged inside both the feed pipe 4 and the discharge pipe 5.

[0028] Working principle: This embodiment provides a deep treatment device for concentrated liquid. When in use, first, the garbage concentrated liquid enters the sieving cylinder 202 through the feeding pipe 4. At this time, the rotation of the DC motor 301 drives the planetary gear disk 302 to rotate, so that the sieving cylinder 202 and the nanofiltration cylinder 201 rotate in opposite directions. The garbage concentrated water in the sieving cylinder 202 generates a centrifugal force during rotation, and the concentrated water rotates and deviates from the axis to the outside, and the concentrated water is preliminarily filtered by the large-aperture filter screen 206. Through the reverse rotation of the nanofiltration cylinder 201 and the sieving cylinder 202, when the preliminarily filtered concentrated water rotates into the interior of the nanofiltration cylinder 201, the drifting path of the concentrated water is opposite to the rotation path of the nanofiltration cylinder 201, so that the nanofiltration cylinder 201 can directly contact the concentrated water during rotation, and the concentrated liquid is guided by the arc-shaped guide plate 204, so that the concentrated water can fully contact the nanofiltration cylinder 201, and is filtered by the nanofiltration membrane 205. The filtered concentrated water is discharged through the discharge pipe 5.

[0029] The embodiments disclosed in this utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.

Claims

1. A deep treatment device for concentrated liquid, characterized in that, It includes a nanofiltration tank (1), and the interior of the nanofiltration tank (1) is divided into an upper cavity and a lower cavity by a partition board, and a nanofiltration component (2) is arranged in the upper cavity; The nanofiltration component (2) includes a nanofiltration cylinder (201) movably connected in the upper cavity. A sieve cylinder (202) is arranged inside the nanofiltration cylinder (201). The bottom of the sieve cylinder (202) is rotatably connected to the bottom of the nanofiltration cylinder (201) through a bearing seat (203). A number of arc-shaped guide plates (204) are arranged at equal intervals in a ring shape on the inner wall of the nanofiltration cylinder (201), and a nanofiltration membrane (205) is arranged on the outer surface of the nanofiltration cylinder (201).

2. The deep treatment device for concentrated liquid according to claim 1, characterized in that, A large-aperture filter screen (206) is arranged on the surface of the sieve cylinder (202).

3. The deep treatment device for concentrated liquid according to claim 1, characterized in that, A transmission component (3) is arranged in the lower cavity; The transmission component (3) includes a DC motor (301) fixedly connected in the lower cavity, and the output end of the DC motor (301) is fixedly connected with a planetary gear disc (302).

4. The deep treatment device for concentrated liquid according to claim 3, wherein, The sun gear in the planetary gear disc (302) is fixedly connected to the bottom of the sieve cylinder (202) through a connecting rod (303), and the surface of the planetary gear disc (302) is fixedly connected to the bottom of the nanofiltration cylinder (201).

5. The deep treatment device for concentrated liquid according to claim 1, characterized in that A feed hole is opened on the upper surface of the nanofiltration tank (1), and a feed pipe (4) is fixedly arranged in the feed hole. The sieve cylinder (202) is communicated with the feed pipe (4) through the feed hole.

6. The deep treatment device for concentrated liquid according to claim 5, wherein, A discharge pipe (5) is fixedly arranged on the surface of the nanofiltration tank (1), and the discharge pipe (5) is communicated with the upper cavity through a discharge hole. Valves (6) are arranged in the interiors of both the feed pipe (4) and the discharge pipe (5).

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