Rapid separation equipment for blue-green algae

Abstract

The utility model relates to the technical field of water treatment, in particular to rapid blue-green algae separation equipment which comprises a separation tank and a deposition tank, a sealing cover is arranged on the upper side of the separation tank, a filter cover is arranged on the inner side of the separation tank and is in a big-end-down conical barrel shape, and the filter cover comprises a filter membrane and a support. A quick water outlet is formed in the top of the filter cover; a water inlet pipe is connected to one side of the deposition tank, a water storage bend is arranged on the water inlet pipe, a discharging pipe is arranged on the lower side of the deposition tank, a spiral conveying rod is arranged on the inner side of the discharging pipe, a discharging opening is formed in the lower side of one end of the discharging pipe, a water drainage pipe is arranged on one side of the separation tank, and a flow dividing valve is arranged on the water drainage pipe; the conical barrel-shaped filter cover is adopted, water is fed from the lower side, the filter cover filters blue-green algae, the filter membrane is obliquely arranged, blue-green algae adsorption is effectively reduced, meanwhile, pump water filtering and discharged material recycling are alternately carried out, the blue-green algae on the lower side of the filter cover is cleaned through water flowing, and the service life of the filter membrane is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to water body treatment technical field especially relates to a blue-green algae rapid separation equipment. BACKGROUND

[0002] Blue-green algae is also called cyanobacteria, has a cell wall, is a unicellular organism, and has a size larger than bacteria, with a diameter of about 3-15 microns. Generally, blue-green algae is easy to gather to form a filamentous or unicellular aggregate. The most representative feature of the large-area "water bloom" phenomenon in lakes in summer in China is that blue-green algae proliferate massively, thereby forming a blue-green algal layer on the water surface. The massive proliferation of blue-green algae consumes dissolved oxygen in the water, causing massive fish and shrimp death, and simultaneously producing algal toxins with extremely harmful effects. Therefore, the treatment of blue-green algae in lakes has become a key and difficult problem in current water pollution treatment.

[0003] Currently, there are biological treatment method, mechanical salvage method, adsorption method, chemical method, and engineering dredging method for treating blue-green algae at home and abroad. The biological treatment method usually uses freshwater fish or certain plants to control the number of blue-green algae proliferation, but excessive blue-green algae proliferation also causes fish death, and plants have a slow effect on blue-green algae removal. The mechanical salvage method can improve the removal efficiency of blue-green algae, but still has limitations in large-area water treatment. Adding copper sulfate and other reagents can kill blue-green algae, but also causes water pollution. The engineering dredging method often dredges the bottom of lakes and rivers, or performs hydraulic flushing to transfer blue-green algae out of the water body or into the sea, but has a large investment.

[0004] With the deterioration of water environmental quality and the high attention of society, the blue-green algae collection and treatment technology has also attracted more and more attention of researchers, and has practical application in many lake treatment projects. It is worth noting that the membrane separation technology has a significant advantage in separating blue-green algae in water, and can overcome the current difficulties in blue-green algae separation. However, the existing membrane separation equipment has a small working flow rate, is easy to be blocked, and in order to ensure the separation effect, the working efficiency is limited. For large water body blue-green algae treatment, the blue-green algae in deep water body needs to be pumped and rapidly filtered and separated, and the existing membrane separation equipment has some deficiencies in use. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a blue-green algae rapid separation equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of blue-green algae quick separation equipment, including separation tank and sediment tank, the upper side of the separation tank is equipped with sealing cover, the inside of the separation tank is equipped with filter cover, the filter cover is conical barrel shape with small top and large bottom, the filter cover includes filter membrane and support, filter cover water inlet is arranged downward, filter cover water inlet is communicated with sediment tank, the top of the filter cover is equipped with quick drain port;The side of the sediment tank is connected with water inlet pipe, the water inlet pipe is equipped with water storage bend, the lower side of the sediment tank is equipped with discharge pipe, the inside of the discharge pipe is equipped with spiral conveying rod, the lower side of the one end of the discharge pipe is equipped with discharge port, the side of the separation tank is equipped with drain pipe, the drain pipe is equipped with shunt valve.

[0008] Preferably, the filter membrane covers the support, the filter membrane includes a coarse filter membrane and a fine filter membrane, the fine filter membrane is arranged at the lower part of the support, and the coarse filter membrane is arranged at the upper part of the support.

[0009] Preferably, the top of the water storage bend is higher than the inlet height of the drain pipe, the filter cover and the separation tank form a filter water cavity, and the drain pipe is communicated with the filter water cavity.

[0010] Preferably, the inside of the filter cover and the sediment tank form a blue-green algae collection cavity, and the water inlet pipe and the discharge pipe are both communicated with the blue-green algae collection cavity.

[0011] Preferably, the discharge pipe is embedded in the bottom of the sediment tank, a motor is arranged at one end of the discharge pipe, and the output shaft of the motor is fixedly connected with the spiral conveying rod.

[0012] Preferably, the shunt valve is provided with at least two groups, and is communicated with the drain pipe.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The conical barrel-shaped filter cover is used, water is introduced from the lower side, the filter cover filters blue-green algae, the inclined filter membrane effectively reduces the adsorption of blue-green algae, and the pump water filtering and discharge recovery are alternately performed, the water body flows to clean the blue-green algae at the lower side of the filter cover, and the service life of the filter membrane is prolonged.

[0015] 2. The quick drain port is arranged at the top of the filter cover, a plurality of separation devices are connected in series when large water body blue-green algae is separated, a large-flow water pump is used, the water level in the separation tank is increased, the fine filter membrane and the coarse filter membrane simultaneously filter, part of the blue-green algae is intercepted, the remaining river water is discharged through the quick drain port and enters the next separation device, multi-stage filtration is realized, and the blue-green algae is quickly separated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a three-dimensional overall structure schematic view of the blue-green algae quick separation equipment according to the utility model;

[0017] Fig. 2A three-dimensional local section structure schematic view of a cyanobacteria rapid separation equipment is provided in the utility model.

[0018] Fig. 3 A top view structure schematic view of the cyanobacteria rapid separation equipment is provided in the utility model.

[0019] In the drawing: 1, sealing cover; 2, water inlet pipe; 3, separation tank; 4, discharge pipe; 41, motor; 42, spiral conveying rod; 43, discharge port; 5, sedimentation tank; 6, observation window; 7, drain pipe; 71, shunt valve; 8, filter membrane; 9, support. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, rather than any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] Referring to Figs. 1-3 A cyanobacteria rapid separation equipment includes a separation tank 3 and a sedimentation tank 5. The separation tank 3 is provided with a sealing cover 1 on the upper side. The sealing cover 1 is provided with a water level sensor. The separation tank 3 is provided with an observation window 6 on the side wall, which facilitates the operator to observe the water level and the internal equipment working condition. The inside of the separation tank 3 is provided with a filter cover for rapidly filtering cyanobacteria and facilitating collection. The filter cover is in the shape of a cone barrel with the upper side being small and the lower side being large. While filtering cyanobacteria, the inclined side wall avoids the adhesion of cyanobacteria and avoids the blockage of the filter cover. The filter cover includes a filter membrane 8 and a support 9. The filter membrane 8 is covered on the support 9 to form a filter cover main body. The filter membrane 8 includes a coarse filter membrane and a fine filter membrane. The fine filter membrane is arranged at the lower part of the support 9, and the coarse filter membrane is arranged at the upper part of the support 9. By controlling the water level, small flow and low water level are used for fine filtering, and large flow and high water level are used for fine filter membrane and coarse filter membrane filtering at the same time to improve the filtering flow. The equipment is connected in series with a secondary separation equipment to separate cyanobacteria rapidly by means of multiple filter covers, improve the practicability of the equipment and increase the function of the equipment.

[0022] The filter cover water inlet is arranged downward. The filter cover water inlet is communicated with the sedimentation tank 5. The inside of the filter cover and the sedimentation tank 5 form a cyanobacteria collection cavity. The mixed cyanobacteria wastewater is filtered to separate and collect cyanobacteria and fall into the sedimentation tank 5. The filter cover top is provided with a rapid drain port. When the filter cover is blocked to affect the water flow, the water is discharged through the rapid drain port. The water level sensor detects that the water level is too high to warn the operator to maintain, clean or replace the filter cover.

[0023] The sediment tank 5 is connected with a water inlet pipe 2 on one side, the water inlet pipe 2 is communicated with the blue algae collecting cavity, the water inlet pipe 2 is connected with a water pump, and the water pump is used for pumping the river water or waste water to be treated and sending the river water into the blue algae collecting cavity;

[0024] The sediment tank 5 is provided with a discharge pipe 4 on the lower side, the discharge pipe 4 is communicated with the blue algae collecting cavity, the discharge pipe 4 is embedded in the bottom of the sediment tank 5, a motor 41 is arranged on one end of the discharge pipe 4, a spiral conveying rod 42 is arranged on the inner side of the discharge pipe 4, the output shaft of the motor 41 is fixedly connected with the spiral conveying rod 42, a discharge port 43 is arranged on the lower side of one end of the discharge pipe 4, a discharge valve is arranged on one side of the discharge port 43, a cloth bag or a connecting pipe is sleeved on the discharge port 43, so that the discharged blue algae can be collected and packaged, and subsequent treatment is facilitated;

[0025] The filter cover and the separation tank 3 are communicated with a water filtering cavity, the separation tank 3 is provided with a drain pipe 7 on one side, the drain pipe 7 is communicated with the water filtering cavity, a shunt valve 71 is arranged on the drain pipe 7, the shunt valve 71 controls the on-off of water drainage, the shunt valve 71 is provided with at least two groups, and is communicated with the drain pipe 7, so as to drain water or connect a secondary separation device, and the water drainage efficiency is improved;

[0026] A water storage bend is arranged on the water inlet pipe 2, the top of the water storage bend is higher than the inlet height of the drain pipe 7, so that the waste water in the separation tank 3 is preferentially discharged through the drain pipe 7 or the discharge pipe 4, and backflow is avoided, and the working of the water pump is affected.

[0027] In the embodiment, an operator installs the device near a water body or fixes the device on a ship, drives the ship to a target water area, pumps the waste water containing blue algae through the water pump, the waste water flows into the blue algae collecting cavity through the water inlet pipe 2, the liquid surface floats up, contacts the filter cover, the blue algae is intercepted by the fine filter membrane, the water is filtered, and is discharged through the drain pipe 7, at this time, the discharge pipe 4 is cut off and not communicated, so as to avoid that the waste water directly flows out;

[0028] After working for a period of time, part of the blue algae is accumulated in the sediment tank 5, the blue algae adheres to the filter cover, the water pump stops working, and the blue algae is discharged, the discharge valve on the discharge pipe 4 is opened, the motor 41 controls the spiral conveying rod 42 to convey and extrude the blue algae, and the blue algae is discharged through the discharge port 43 and is collected by a packaging bag or a bucket, and is waiting for subsequent treatment;

[0029] After the discharge valve is opened, the water flows downward in the water discharge and discharge process of the discharge pipe 4, the filter cover is cleaned, the blue algae is driven to flow, the service life of the filter membrane is prolonged, and the blue algae is extruded out by the spiral conveying rod 42;

[0030] If it is a large range of water cleaning blue-green algae, can use a small boat loaded with multiple separation equipment, between the series, to achieve multi-stage filtration, small boat to the target water, through the water pump to extract with blue-green algae wastewater, through the filter cover for filtering, if the water is larger, in order to improve the efficiency, stirring water flow, improve the efficiency of blue-green algae collection, can increase the flow of water pump, wastewater into the blue-green algae collection chamber, fine filter membrane, coarse filter membrane filtering at the same time, intercept part of blue-green algae, the remaining wastewater through the rapid drainage outlet, by the drain pipe 7 into the secondary separation equipment, again into the water inlet pipe 2, by the filter cover for interception, multiple filtration, until the completion of water filtration, remove blue-green algae.

[0031] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0032] It is to be noted that the terms used herein are merely for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" as used herein specify the presence of stated features, steps, operations, devices, components and / or combinations thereof.

[0033] The relative arrangement of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The technology, methods and devices known to those skilled in the art can not be discussed in detail, but under appropriate circumstances, the technology, methods and devices should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A rapid cyanobacteria separation device, comprising a separation tank (3) and a sedimentation tank (5), characterized in that, The separation tank (3) is provided with a sealing cover (1) on the upper side, and a filter cover is provided inside the separation tank (3). The filter cover is in the shape of a cone with a smaller top and a larger bottom. The filter cover includes a filter membrane (8) and a support (9). The water inlet of the filter cover is set downward. The water inlet of the filter cover is connected to the sedimentation tank (5). The top of the filter cover is provided with a quick drain outlet. The sedimentation tank (5) is connected to a water inlet pipe (2) on one side. A water storage bend is provided on the water inlet pipe (2). A discharge pipe (4) is provided on the lower side of the sedimentation tank (5). A spiral conveying rod (42) is provided on the inner side of the discharge pipe (4). A discharge port (43) is provided on the lower side of one end of the discharge pipe (4). A drain pipe (7) is provided on one side of the separation tank (3). A diversion valve (71) is provided on the drain pipe (7).

2. The rapid cyanobacteria separation device according to claim 1, characterized in that, The filter membrane (8) covers the support (9). The filter membrane (8) includes a coarse filter membrane and a fine filter membrane. The fine filter membrane is disposed at the lower part of the support (9), and the coarse filter membrane is disposed at the upper part of the support (9).

3. The rapid cyanobacteria separation device according to claim 1, characterized in that, The height of the top of the water storage bend is higher than the height of the inlet of the drain pipe (7). The filter cover and the separation tank (3) are connected to the water filter chamber. The drain pipe (7) is connected to the water filter chamber.

4. The rapid cyanobacteria separation device according to claim 3, characterized in that, The inner side of the filter cover forms a blue-green algae collection chamber with the sedimentation tank (5), and the water inlet pipe (2) and the material outlet pipe (4) are both connected to the blue-green algae collection chamber.

5. The rapid cyanobacteria separation device according to claim 1, characterized in that, The discharge pipe (4) is fitted into the bottom of the sedimentation tank (5). One end of the discharge pipe (4) is equipped with a motor (41), and the output shaft of the motor (41) is fixedly connected to the screw conveyor (42).

6. The rapid cyanobacteria separation device according to claim 1, characterized in that, The diversion valve (71) is provided in at least two sets, and both are connected to the drain pipe (7).

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