Fully automatic low pressure flushing drum circulation filtration system

Abstract

The utility model provides a fully automatic low-pressure flushing drum circulation filtration system, including a drum bin, a drum built in the drum bin, a transmission device for driving the drum to rotate, and a water pump for driving sewage to enter the sewage inlet of the drum bin; the drum is a multi-prism shape, and each surface is provided with a filter screen; the left end of the drum is provided with a drum inlet, which is connected with the sewage inlet; the drum is built with a brush for removing impurities on the inner wall of the drum when the drum rotates and a sewage receiving tray for receiving impurities, and the sewage receiving tray is connected with the sewage outlet of the drum bin; the transmission device includes a gear meshingly connected with the rotating shaft of the drum and a reduction motor for driving the gear to rotate; a liquid level gauge linked to the reduction motor is provided in the drum. The utility model allows users to replace the filter screen piece by piece by themselves, deal with internal failures of the drum, and reduce maintenance costs. The utility model realizes low-pressure spray flushing through the synergistic effect of the brush built into the drum, without the need to install an additional high-pressure water pump, thereby reducing equipment costs.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage filtration, in particular to a full-automatic low-pressure flushing drum circulation filtration system. Background Art

[0002] Regarding the recycling and filtration of wastewater from fish farming, the mainstream solutions on the market are still in the early stages. The main problems include the inability to achieve automatic sewage discharge, the need for regular manual dredging, and the high consumption of filter materials.

[0003] Rotary drum filter equipment is considered an important development direction in the water treatment industry because of its advantages of automatic sewage discharge and no need for filter materials. However, such products often have pain points such as high energy consumption, inconvenient maintenance and large floor space, which restrict their widespread application. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a fully automatic low-pressure washing drum circulation filtration system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fully automatic low-pressure flushing drum circulation filtration system comprises a drum bin, a drum built in the drum bin, a transmission device for driving the drum to rotate, and a water pump for driving sewage to enter the sewage inlet of the drum bin; the drum is in a multi-prism shape, and a filter screen is provided on each surface; a drum inlet is provided at the left end of the drum and is connected with the sewage inlet; a brush for removing impurities from the inner wall of the drum when the drum rotates and a dirt receiving tray for receiving impurities are built into the drum, and the dirt receiving tray is connected with the sewage outlet of the drum bin; the transmission device comprises a gear meshingly connected to the rotating shaft of the drum and a reduction motor for driving the gear to rotate; a liquid level gauge is provided in the drum, and the liquid level gauge is linked to the reduction motor.

[0007] Furthermore, it also includes a biochemical bin, the water inlet of the biochemical bin is connected with the water outlet of the drum bin, and the biochemical bin has built-in ultraviolet sterilization lamps and activated carbon.

[0008] Furthermore, the right end of the drum is connected to the right warehouse wall through a right bearing, and the left end is connected to the left warehouse wall through a left hollow shaft. A gear is set on one side of the left hollow shaft, and the reduction motor drives the drum to rotate around the axis through the gear.

[0009] Furthermore, the dirt collecting pan is arranged at an angle, and a brush is arranged on the edge of the dirt collecting pan close to the inner wall of the drum.

[0010] Furthermore, a flushing device for flushing impurities from the inner wall of the drum is arranged directly above the drum, and the flushing device is connected to a flushing water interface of the drum bin.

[0011] Beneficial effects:

[0012] The multi-prism-shaped drum of the utility model makes it more convenient to disassemble the filter screen outside the drum, and the user can replace the filter screen piece by piece by himself to deal with internal faults of the drum and reduce maintenance costs.

[0013] The low-pressure spray flushing technology is adopted. Compared with the traditional drum filter which requires the configuration of a high-pressure water pump, this equipment realizes low-pressure spray flushing through the synergistic effect of the built-in brush of the drum. There is no need to install an additional high-pressure water pump, which effectively reduces the equipment cost.

[0014] The equipment occupies a small area and adopts an integrated design to combine the drum bin and the biochemical bin, which not only realizes multi-stage filtration of sewage, but also effectively saves floor space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model from the left;

[0016] Figure 2 It is a structural schematic diagram of the utility model from the right side;

[0017] Figure 3 It is a structural schematic diagram of the utility model in a front view;

[0018] Figure 4 It is a schematic diagram of the external pipeline connection structure of the utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] The fully automatic low-pressure flushing drum circulation filtration system of the utility model is divided into a drum bin 510 and a biochemical bin 208, and the drum bin 510 and the biochemical bin 208 are connected through a hole 205. The drum bin 510 has a built-in multi-prism-shaped drum 511, and the drum 511 is connected to the bin wall through a right-side bearing 515 and a left-side hollow shaft 516, respectively. At the same time, a nylon gear 517 is arranged on one side of the left hollow shaft 516, and a reduction motor 512 drives the drum 511 to rotate around the axis through the nylon gear 517. Each surface of the multi-prism-shaped surface of the drum 511 is respectively provided with a stainless steel filter screen for filtering impurities in the water, and a keel is fixed on the outside of the filter screen to prevent deformation. The drum 511 has a built-in sewage receiving tray 513, and the sewage receiving tray 513 is connected to the sewage outlet 402, and the water inlet 401 is connected to the water inlet 405 of the drum 511. The dirt collecting tray 513 is tilted, and a nylon brush 514 is provided on its upper edge near the inner wall of the drum 511 for cleaning impurities on the inner wall of the drum 511 . The bottom of the tray is fixed to the connecting pipe between the drain outlet 402 .

[0021] The connecting pipe between the sewage outlet 402 and the sewage receiving pan 513 passes through the left hollow shaft 516, but does not rotate with the left hollow shaft 516. The left hollow shaft 516 is coaxial with the water inlet 405.

[0022] A flushing device 601 for flushing impurities from the inner wall of the drum is arranged directly above the drum 511. The flushing device 601 is connected to the flushing water interface 105, and flushing water is provided by the flushing water interface 105. The flushing device 601 includes an electric water valve and a water spray pipe.

[0023] The water outlet 403 is connected to the biochemical chamber 208. Two brackets are arranged at the bottom of the biochemical chamber 208, and holes 201 for fixing the ultraviolet germicidal lamp are arranged on the brackets.

[0024] The equipment housing is provided with a control circuit box 104, which contains a PIC control circuit for controlling the operating frequency of the drum 511 and the intensity of the flushing water flow.

[0025] A liquid level meter is provided in the drum 511, and the liquid level meter is linked with the reduction motor 512 and the electric water valve through the liquid level sensor and the PID control circuit. When the liquid level meter detects that the water level of the drum 511 is higher than the specified water level line, the reduction motor 512 is started to drive the drum 511 to rotate. At the same time, the electric water valve is opened, and the flushing device 601 is started to flush the drum 511.

[0026] Working principle:

[0027] The water pump in the pump chamber 11 is started, driving the aquaculture sewage to flow into the drum 511 of the device through the water inlet 401. The sewage overflows from the inside of the drum 511, and the impurities in the water are filtered by the stainless steel filter and attached to the inner wall of the drum 511. As impurities accumulate on the filter, the speed at which the sewage overflows from the drum 511 gradually slows down, and then the water level in the drum 511 rises. When the water level in the drum 511 rises to the specified water level line, the reduction motor 512 is started to drive the drum 511 to rotate. In this process, the brush 514 built into the drum 511 cleans the attached impurities on the inner wall, and the flushing device 601 is started to flush the drum 511. The flushed impurities fall into the sewage receiving tray 513 and eventually flow into the sewer or sewage tank through the sewage outlet 402.

[0028] As the impurities on the filter decrease, the water level in the drum 511 gradually decreases. Once the preset water level lower limit is reached, the reduction motor 512 stops running, the drum 511 stops rotating, and the flushing device 601 also stops working. The water filtered by the drum 511 flows into the biochemical chamber 208 through the hole 205. The biochemical chamber 208 is equipped with ultraviolet sterilization lamps and activated carbon to achieve multi-stage sterilization and filtration of the water. Finally, the treated water is circulated back to the fish pond through the outlet 403, completing the water treatment work of the entire device.

Claims

1. A fully automatic low-pressure flushing drum circulation filtration system, characterized in that: The invention comprises a drum bin (510), a drum (511) built in the drum bin (510), a transmission device for driving the drum (511) to rotate, and a water pump for driving sewage to enter the sewage inlet (401) of the drum bin (510); the drum (511) is in the shape of a multi-prism, and a filter screen is provided on each surface; a drum inlet (405) is provided at the left end of the drum (511), and is connected to the sewage inlet (401); the drum (511) is built with a brush (514) for removing impurities from the inner wall of the drum (511) when the drum (511) rotates, and a sewage receiving tray (513) for receiving impurities, and the sewage receiving tray (513) is provided with a filter screen. 3) connected to the sewage outlet (402) of the drum bin (510); the transmission device comprises a gear (517) meshingly connected to the rotating shaft of the drum (511) and a reduction motor (512) driving the gear (517) to rotate; a liquid level gauge is arranged in the drum (511), and the liquid level gauge is linked to the reduction motor (512); a flushing device (601) for flushing impurities on the inner wall of the drum is arranged directly above the drum (511), and the flushing device (601) is connected to the flushing water interface (105) of the drum bin (510); the flushing device (601) comprises an electric water valve and a water spray pipe, and the electric water valve is linked to the liquid level gauge.

2. The fully automatic low-pressure washing drum circulation filtration system according to claim 1 is characterized in that: It also includes a biochemical bin (208), the water inlet of the biochemical bin (208) is connected to the water outlet (205) of the drum bin (510), and the biochemical bin (208) has a built-in ultraviolet sterilization lamp and activated carbon.

3. The fully automatic low-pressure washing drum circulation filtration system according to claim 1 is characterized in that: The right end of the rotating drum (511) is connected to the right warehouse wall via a right bearing (515), and the left end is connected to the left warehouse wall via a left hollow shaft (516). A gear (517) is provided on one side of the left hollow shaft (516), and the reduction motor (512) drives the rotating drum (511) to rotate around the axis via the gear (517).

4. The fully automatic low-pressure washing drum circulation filtration system according to claim 1 is characterized in that: The dirt receiving tray (513) is arranged at an angle, and a brush (514) is arranged at the edge thereof close to the inner wall of the rotating drum (511).

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