CN101439904B - Rotary type efficient biological filtering water treatment equipment for circulating water cultivation - Google Patents

Abstract

The invention relates to a rotary high-efficiency biological filter for circulating water cultivation, which is characterized in that the rotary high-efficiency biological filter for circulating water cultivation is provided with a water pump, wherein an outlet of the water pump is communicated with an inlet of an ejector, and an outlet of the ejector is communicated with an inlet of a pressure stabilizing cavity; an outlet of the pressure stabilizing cavity is communicated with a rotary chamber, and the bottom in the rotary chamber is provided with a water flow rotary lug boss; a rotary channel is arranged on the wall on the lower part of the rotary chamber; a water outlet is arranged on the side wall on the upper part of the rotary chamber, and the outside of the water outlet around the rotary chamber is provided with an annular settling chamber and a foam collecting chamber which are communicated through the upper part of an annular baffle plate; the annular baffle plate is provided with an opening which is connected with a clean water tank through a pipeline; and the lower part of the settling chamber and the lower part of the foam collecting chamber are communicated with a sewage tank through a pipeline and a valve respectively. The rotary high-efficiency biological filter for circulating water cultivation can greatly improve the content of dissolved oxygen in water, simultaneously increases the specific surface area and generates a stable biomembrane due to high-speed rotating filter materials, effectively purifies the water quality, and can greatly improve the water treatment effect.

Description

A rotary high-efficiency biological filter device for circulating aquaculture

technical field

The invention relates to a rotary high-efficiency biological filter device for circulating aquaculture.

technical background

With the aggravation of water pollution and the decline of fishery resources, industrialized recirculating aquaculture has become the main development direction of the current aquaculture industry. The key to industrialized recirculating aquaculture lies in water treatment technology, and biological treatment technology plays a vital role in industrialized aquaculture water treatment. At present, most of the biofilters used in industrial circulating aquaculture in my country are imported from abroad or used for industrial sewage treatment. At present, no rotary high-efficiency biological filtration device has been successfully applied in industrial circulating aquaculture production.

Contents of the invention

The purpose of this invention is to provide a kind of circulating aquaculture rotary high-efficiency biological filter device, which can make up for the above-mentioned deficiencies of the prior art.

A rotary high-efficiency biological filter device for circulating aquaculture, characterized in that there is a water pump, the outlet of the water pump communicates with the inlet of the ejector through the pipeline, and the outlet of the ejector communicates with the inlet of the pressure stabilizing chamber through the pipeline, and the pressure is stabilized The outlet of the chamber communicates with the rotating chamber through the rotating water channel. A water flow rotating boss is provided at the bottom of the rotating chamber. The rotating water channel is set on the lower wall of the rotating chamber. There is an annular sedimentation chamber and a foam collection chamber around the rotating chamber outside the nozzle, and there is an annular partition between the annular sedimentation chamber and the foam collection chamber. The annular sedimentation chamber and the foam collection chamber communicate through the top of the annular partition; An opening communicates with the clear water pool through the pipeline. The sedimentation chamber and the lower part of the foam collection chamber communicate with the sewage pool through pipelines and valves respectively.

The invention can greatly improve the dissolved oxygen in water, and at the same time, the high-speed rotating filter material increases the specific surface area and produces a stable biofilm, so that the water quality can be effectively purified, and the water treatment effect can be greatly improved.

Description of drawings

Accompanying drawing is the structural representation of the present invention.

Detailed ways

The rotary high-efficiency biological filter device for circulating aquaculture of the present invention has a water pump 1, and the outlet of the water pump 1 communicates with the inlet of the jet device 2 through a pipeline, and the negative pressure generated by the jet device 2 sucks the air, and is mixed with the water entering it. Mix well to form high dissolved oxygen water. The outlet of the ejector 2 communicates with the inlet of the pressure stabilizing chamber 3 through a pipeline, and the outlet of the stabilizing chamber 3 communicates with the rotating chamber 6 through the rotating water channel 4, and the rotating channel 4 is opened on the wall of the rotating chamber 6, and the rotating chamber The bottom in 6 is provided with a water flow swivel boss 5. After the above-mentioned high dissolved oxygen water flow enters the rotating chamber 6 through the rotating channel 4, a rotating upward flow is generated under the action of the water flow rotating boss 5, so that the high dissolved oxygen water is fully mixed with the filter material placed in the rotating chamber 6, and Suspended and rotated up, the suspended filter material has a very high specific surface area, and the biofilm attached to the filter material can purify the water quality. There is a water outlet 7 on the upper side wall of the rotating chamber 6, and there is an annular sedimentation chamber 8 and a foam collection chamber 9 around the outer water outlet 7 around the rotational chamber 6, and there is a ring between the annular sedimentation chamber 8 and the foam collection chamber 9. partition 10, and communicate through the top of the annular partition 10. There is an opening on the annular partition 10 , and communicates with the clear water pool 14 through a pipeline, so that filtered clear water can be introduced into the clear water pool 14 . The lower part of the sedimentation chamber 8 and the foam collection chamber 9 communicates with the sewage pool 13 through pipelines respectively, and shut-off valves 11 and 12 are respectively installed on the pipelines, and the shut-off valve 11 is opened to introduce the impurities in the sedimentation chamber 8 into the sewage pool 13, and the shut-off valve is opened 12 can introduce the foam in the foam collection chamber 9 into the sewage tank 13.

The invention provides a rotary high-efficiency biological filter device for circulating aquaculture. When in use, the water pumped by the device 1 sucks in air when it passes through the jet tube 2 and fully mixes with water to produce high dissolved oxygen water. The water flows through the tube The water in the pressure stabilizing chamber 3 passes through the rotating channel 4 and enters the rotating chamber 6. The water flow rotating boss 5 is set in the rotating chamber 6, and the granular biological filter material is placed in the rotating chamber 6. The high-pressure rotating water flow drives the biological filler. Rotate and rise together to increase the specific surface area of the filter material, and form a biofilm under high dissolved oxygen conditions to purify the water quality. At the same time, the high-speed rotation of the filter material keeps the biofilm on the filter material with a uniform thickness and is not easy to fall off , greatly improving the water treatment effect, while the water flow rotates at a high speed, the air dissolved in the water overflows from the water to form bubbles, so that impurities enter the precipitation chamber 8 and the foam collection chamber 9 through the outlet 7. Purified water enters the annular settling chamber 8 outside the rotating chamber 6 through the water outlet 7, and the settled water enters the clear water pool 14 through the opening on the annular partition 10 through the pipeline. The generated foam enters the foam collection chamber 9 through the top of the annular partition 10, and the shut-off valve 11 is opened to introduce impurities in the sedimentation chamber 8 into the sewage pool 13, and the foam in the foam collection chamber is opened to the sewage pool 13 after the shut-off valve 12 is opened.

Claims (1)

1. rotary type efficient biological filtering water treatment equipment for circulating water cultivation, it is characterized in that having a water pump (1), the outlet of this water pump (1) communicates by the inlet of pipeline with ejector (2), the outlet of ejector (2) is communicated with by the inlet of pipeline with pressure stabilizing cavity (3), the outlet of pressure stabilizing cavity (3) communicates with rotation chamber (6) by rotation water channel (4), bottom in the rotation chamber (6) is provided with current rotation boss (5), rotation water channel (4) is opened on the wall of rotation chamber (6) bottom, have a water outlet (7) on the upper portion side wall of rotation chamber (6), water outlet (7) is outer to have an annular settling chamber (8) and a foam collecting chamber (9) around rotation chamber (6), between annular settling chamber (8) and the foam collecting chamber (9) toroidal membrane (10) is arranged, annular settling chamber (8) and foam collecting chamber (9) are by the top UNICOM of toroidal membrane (10); Have a perforate to communicate with clean water basin (14) by pipeline on the toroidal membrane (10), annular settling chamber (8) and foam collecting chamber (9) bottom communicate with sewage lagoon (13) by pipeline and valve (11,12) respectively.

Images