CN205710289U - A kind of circular water treating system - Google Patents

Abstract

The utility model discloses a circulating water treatment system, which belongs to the field of sewage treatment and comprises a circulating water pool, a treatment tower, a sewage treatment tank unit and a clear water pool. The upper part of the treatment tower is provided with a water inlet one and the lower part is provided with a water outlet one. The sewage treatment tank unit is composed of a sewage treatment tank 1, a sewage treatment tank 2, and a sewage treatment tank 3, the sewage treatment tank 1 is provided with a water inlet 2, the sewage treatment tank 3 is provided with a water outlet 2, a circulating pool and a water inlet One phase is connected, and the clear water tank is connected to the water outlet in two phases. The treatment tower includes a shell, a jet air flotation machine, a sludge filtration device and a metal filtration device, and a jet air flotation machine, a sludge filtration device, a metal filtration device The removal device is sequentially arranged inside the shell from top to bottom. A water pipe is connected between the jet air flotation machine and the circulating pool, and a water pump is arranged on the water pipe. A circulating water treatment system with ideal filtration effect.

Description

A circulating water treatment system

technical field

The utility model relates to the field of sewage treatment, in particular to a circulating water treatment system.

Background technique

Now the problem of water pollution in China and even the world is becoming more and more serious. Therefore, it is very important and necessary to do a good job in the recycling of water resources. The known equipment used for sewage circulating water is composed of two stages of sedimentation and filtration. The filter device uses filter cotton , filter yarn and other filter materials have a low removal rate for COD, impurities, oily substances, phosphorus, etc. in sewage, and various chemicals need to be added, and filter elements need to be replaced regularly, which not only increases the cost of sewage treatment, but also reduces the water quality after treatment. It is not ideal, it cannot remove the peculiar smell in the water, and the residual chemicals in the water are corrosive, which will affect the subsequent use.

For example, the Chinese patent document whose publication number is CN203999210U discloses a wastewater treatment device, including a first treatment tank, a second treatment tank, a first dissolved gas tank, a second dissolved gas tank, and a pretreatment tank. There is a waste water inlet, the pretreatment tank is connected with the first treatment tank through the outlet pipe, the first treatment tank is connected with the second treatment tank through the water pipe, the first dissolved gas tank is connected with the first treatment tank through the first air pipe, and the second The dissolved air tank communicates with the second treatment tank through the second air pipe, the outlet of the first air pipe is arranged below the outlet of the water outlet pipe, the outlet of the second air pipe is arranged below the outlet of the water passing pipe, and the first treatment tank The bottom surface of the tank is funnel-shaped, and a slag discharge pipe is provided in the middle of the bottom surface, and an emptying pipe is provided in the middle of the bottom surface of the second treatment tank. Although the above-mentioned technical scheme can adapt to the treatment of wastewater with different concentrations, its volume is relatively large and the layout It is unreasonable and the sediment in the wastewater is not completely removed, which will affect the water quality after treatment.

Another example is that the patent literature with the publication number CN203269693U provides a circulating water treatment system, including a circulating water tank, a treatment tower, a treatment tank and a clean water tank. The upper part of the treatment tower is provided with a water outlet, and the lower part is provided with a water inlet. The water outlet and the lower part are provided with a water inlet, and the circulating pool is connected to the water inlet of the treatment tower, and the water outlet of the treatment tower is connected to the water inlet of the treatment tank. Although the filtering and sterilizing effect is good, the filtering effect on the sediment and oil in the water is poor.

Utility model content

The technical problem to be solved by the utility model is to provide a circulating water treatment system with a reasonable layout and an ideal filter effect of sediment and oil, so as to solve the above-mentioned multiple defects caused by the prior art.

In order to achieve the above object, the utility model provides the following technical solutions: a circulating water treatment system, including a circulating pool, a treatment tower, a sewage treatment tank unit and a clean water pool, the upper part of the treatment tower is provided with a water inlet 1, and the lower part is provided with a Outlet 1, the sewage treatment tank unit is composed of sewage treatment tank 1, sewage treatment tank 2, and sewage treatment tank 3, sewage treatment tank 1 is provided with water inlet 2, sewage treatment tank 3 is provided with water outlet 2, circulation The pool is connected to the water inlet one, and the clean water pool is connected to the water outlet two. The treatment tower includes a shell, a jet air flotation machine, a sludge filter device and a metal filter device. The jet air flotation machine, sludge The filtering device and the metal filtering device are sequentially arranged inside the casing from top to bottom, and a water pipe 1 is connected between the jet air flotation machine and the circulating pool, and a water pump is arranged on the water pipe 1.

The beneficial effect of adopting the above technical scheme is: the water in the circulating pool enters the treatment tower through the water pipe under the action of the pump, then enters the jet air flotation machine jet air flotation, and enters the sludge under the action of gravity after the jet air flotation is completed The filtering device removes the sediment and oil in the water, and the water after the filtering of the sediment and oil enters the metal filtering device for metal adsorption treatment. The whole treatment tower cleverly utilizes gravity to save energy and space. After the circulating water is processed through the treatment tower, it enters the sewage treatment tank unit for further biochemical reactions, adsorption, and filtration, thereby completing the precipitation and removal of particulate matter in the water. The whole process has a reasonable layout and good impurity removal effect. After the treatment is completed The water enters the clean water pool for storage, waiting for utilization.

Preferably, the casing is composed of a casing body and a casing cover hinged, a transparent observation window is provided on the upper surface of the casing cover, and a wire pulley is installed on the side wall of the casing cover.

The beneficial effect of adopting the above technical scheme is: the shell is composed of the shell body and the shell cover hingedly, and the shell cover can be opened when the inside of the shell needs to be overhauled or cleaned, and the operation is convenient, and the upper surface of the shell cover is provided with a transparent observation window, When the water treatment process is in progress, the operator can monitor the working process in real time through the transparent observation window to increase the safety of use.

Preferably, a slide rail is provided at the position corresponding to the inner wall of the housing and the sludge filter device, the sludge filter device is fixed in the slide rail, and the sludge filter device includes a support frame, a multi-stage filter screen and a nylon rope, The side wall of the shell cover is provided with a through hole, one end of the nylon rope is fixedly connected with the support frame, and the other end is passed through the through hole and wound on the wire wheel.

The beneficial effect of adopting the above technical solution is: the inner wall of the shell is provided with a slide rail at the position corresponding to the sludge filter device, the sludge filter device is fixed in the slide rail, and the sludge filter device can be moved up and down in the slide rail Mobile, the sludge filter device includes a support frame, a multi-stage filter screen and a nylon rope. There is a through hole on the side wall of the shell cover. One end of the nylon rope is fixedly connected with the support frame, and the other end is wound through the through hole and connected to the wire wheel. When the sludge filtering device needs to be cleaned, the nylon rope can be rewound through the wire wheel, and the sludge filtering device can move up in the slide rail under the action of the nylon rope.

Preferably, the multi-stage filter screen includes several filter screens, and the multi-stage filter screen includes a metal grid, a 1200-mesh sponge filter core and a 1500-mesh sponge filter core arranged in sequence from top to bottom, and the support frame is provided with a fixed The clamp, the filter screen is connected with the supporting frame through the fixing clamp.

The beneficial effect of adopting the above technical scheme is: the multi-stage filter screen includes several filter screens, and the diameter of the filter screen shrinks successively from top to bottom, which ensures the filtering effect. Connected with the support frame, the filter screen and the support frame are detachably connected, which is convenient for installation and replacement while saving manpower, and can flexibly select filters with different apertures according to actual needs.

Preferably, the jet air flotation machine is composed of a jet pump and an ejector, and the ejector is arranged above the jet pump, and the jet pump includes a nozzle, a suction chamber, a mixing pipe and a diffuser pipe; the ejector includes a nozzle, a suction chamber and diffuser tubes.

The metal filtering device includes a magnet mounting frame fixed on the inner wall of the casing and a magnet, and the magnet is mounted on the magnet mounting frame.

The beneficial effect of adopting the above technical scheme is: after the sewage enters the jet pump under the action of the pump, the jet pump generates negative pressure, and the jet pump inhales air to make the sewage generate micro-bubbles, which carry the oil droplets and suspended matter in the sewage to float up To the water surface, by setting a magnet, the magnetism of the magnet can be used to absorb some metals contained in the sewage to the magnet, further improving the effect of sewage treatment.

Preferably, the top of the sewage treatment tank 1 is provided with a sewage purification drug input port, the sewage treatment tank 1 is provided with a stirring device, the bottom of the sewage treatment tank 2 and the sewage treatment tank 3 is provided with a drain valve, and the sewage treatment tank 2 is equipped with a sewage valve. A packing column is arranged, and a fiber filter element is arranged in the sewage treatment tank three.

The beneficial effects of adopting the above technical scheme are: the top of the sewage treatment tank 1 is provided with a sewage purification drug input port, the sewage treatment tank 1 is provided with a stirring device, and according to the needs of use, the drug is added to the sewage treatment tank 1 through the sewage purification drug input port, And use the stirring device to accelerate the reaction of the drug and the sewage, enhance the reaction effect, so as to complete the sedimentation or removal of the particles in the sewage. The setting of the sewage valve is convenient for cleaning the sewage in the sewage treatment tank 2 and the sewage treatment tank 3. The packing column can be The dirt in the sewage is subjected to layer-by-layer adsorption treatment, and the water after the treatment in the sewage treatment tank 2 enters the sewage treatment tank 3 for further adsorption through the fiber filter element, and the adsorption effect is good.

Preferably, the upper part of the sewage treatment tank 1 is provided with a water outlet 3, the upper part of the sewage treatment tank 2 is provided with a water outlet 4, the lower part is provided with a water inlet 3, and the lower part of the sewage treatment tank 3 is provided with a water inlet 4.

Preferably, the fiber filter element is an activated carbon fiber filter element, and the ejector is made of PVDF fluoroplastic.

The beneficial effect of adopting the above technical scheme is that the treated water flows out from the upper part, and the dirt in the water settles in the lower layer under the action of gravity, and the treatment effect is improved by using the action of gravity.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of sludge filtering device;

Fig. 3 is a block flow diagram of the utility model.

Among them, 1-circulating pool, 2-water pipe 1, 3-suction pump, 4-shell body, 5-jet pump, 6-jet device, 7-shell cover, 8-transparent observation window, 9-sludge filter device , 10-nylon rope, 11-wire wheel, 12-sewage purification drug input port, 13-stirring device, 14-packing column, 15-clear water pool, 16-sewage treatment tank 3, 17-drainage valve, 18-sewage treatment Tank two, 19-sewage treatment tank one, 20-magnet installation frame, 21-magnet, 22-support frame, 23-fixing fixture, 24-multi-stage filter screen, 25-fiber filter element.

detailed description

Preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 shows the specific embodiment of the present utility model: a kind of circulating water treatment system, comprises circulating pool 1, treatment tower, sewage treatment tank unit and clean water pool 15, and described treatment tower top is provided with water inlet 1, and bottom is provided with Outlet one, the sewage treatment tank unit is composed of sewage treatment tank one 19, sewage treatment tank two 18, sewage treatment tank three 16, sewage treatment tank one 19 is provided with water inlet two, sewage treatment tank three 16 is provided with Two water outlets, the circulating pool 1 is connected to the water inlet one, and the clear water pool 15 is connected to the two water outlets. The treatment tower includes a shell, a jet air flotation machine, a sludge filter device 9 and a metal filter device. The air flotation machine, the sludge filter device 9, and the metal filter device are sequentially arranged inside the shell from top to bottom, and a water pipe 2 is connected between the jet air flotation machine and the circulating pool 1, and the water pipe 2 is provided with The water pump 3 and the water in the circulating pool 1 enter the treatment tower through the water pipe 1 under the action of the water pump 3, then enter the jet air flotation machine jet air flotation, and after the jet air flotation is completed, it enters the sludge for filtration under the action of gravity The device 9 removes the sediment and oil in the water. After the sediment and oil are filtered, the water enters the metal filtering device for metal adsorption treatment. The whole treatment tower cleverly utilizes gravity, saving energy and space, and recycling After the water is processed through the treatment tower, it enters the sewage treatment tank unit for further biochemical reactions, adsorption, and filtration, thereby completing the precipitation and removal of particulate matter in the water. The whole process has a reasonable layout and good impurity removal effects. The treated water Enter the clean water pool 15 for storage and wait for utilization.

Wherein, the housing is composed of a housing body 4 and a housing cover 7 hinged, the upper surface of the housing cover 7 is provided with a transparent observation window 8, and the side wall of the housing cover 7 is equipped with a wire pulley 11, and the interior of the housing needs to be overhauled or When cleaning, just open the shell cover 7, which is convenient to operate. There is a transparent observation window 8 on the upper surface of the shell cover 7. When the water treatment process is in progress, the operator can monitor the working process in real time through the transparent observation window 8, which increases the safety of use. sex.

Wherein, the position corresponding to the inner wall of the housing and the sludge filtering device 9 is provided with a slide rail, the sludge filtering device 9 is fixed in the sliding rail, and the sludge filtering device 9 includes a support frame 22, a multi-stage filter screen 24 And the nylon rope 10, the side wall of the shell cover 7 is provided with a through hole, one end of the nylon rope 10 is fixedly connected with the support frame 22, the other end is passed through the through hole and wound on the wire wheel 11, the inner wall of the housing is connected with the sludge filter device The position corresponding to 9 is provided with a slide rail, and the sludge filter device 9 is fixed in the slide rail, and the sludge filter device 9 can move up and down in the slide rail. When the sludge filter device 9 needs to be cleaned, The nylon rope 10 can be rewound by the wire wheel 11, and the sludge filtering device 9 can move up in the slide rail under the action of the nylon rope 10.

As shown in Fig. 2, described multi-stage filter screen 24 comprises several filter screens, and this multi-stage filter screen 24 comprises the metal grid, 1200 order sponge filter core and 1500 order sponge filter core arranged successively from top to bottom, wherein, metal The mesh is used to filter out large particles of impurities, and the 1200-mesh sponge filter and 1500-mesh sponge filter are used to adhere to the sediment. The support frame 22 is provided with a fixing fixture 23, and the filter screen is connected with the support frame 22 by the fixing fixture 23. The multi-stage filter screen 24 includes several filter screens, and the filter screen is successively reduced in diameter from top to bottom. It is detachably connected with the support frame 22, which is convenient for installation and replacement while saving manpower, and can flexibly select filter screens with different apertures according to actual needs.

It is worth noting that the jet air flotation machine is composed of a jet pump 5 and a jet device 6. The jet device 6 is arranged above the jet pump 5. The jet pump 5 is also called a water ejector. The basic structure consists of a nozzle, a suction chamber, a mixing tube And the diffusion tube and other parts. The structure is simple, the work is reliable, and it is often used in water supply and drainage projects. The working mechanism of the jet pump is to use the turbulent diffusion of the turbulent jet to achieve the purpose of mass transfer and energy transfer. That is, the working fluid with a higher velocity is ejected from the nozzle, and the sucked fluid is mixed with each other in the throat, and momentum, heat and mass exchange occur between the fluid particles or micro-groups, so that the mass and momentum of the two tend to be consistent; the ejector 6 It is composed of three parts: nozzle, suction chamber and diffuser pipe. It is a multi-purpose aeration method developed by using the principle of jet negative pressure. The unique design of the mixed air chamber, the strong water flow and air mixed jet, make the agitation Uniform and complete, the bubbles produced are many and delicate, and the efficiency of dissolved oxygen is high. The oxygen conversion rate of traditional aeration equipment is generally lower than 10%, and the oxygen conversion rate of aeration equipment in the form of jet flow can reach more than 25%. The ejector is made of PVDF fluorine plastic material, which is resistant to ozone, acid and alkali corrosion, has a wide range of compatibility with water quality and temperature changes, and adapts to the operating requirements of different working conditions. The user adds an adjustable valve at the suction port to adjust the suction volume. It can efficiently aerate the sewage, which not only increases the dissolved oxygen required in sewage treatment, but also removes part of the BOD. When there is sludge backflow, Reduce the load on post-treatment facilities; when used in biological contact oxidation tanks, it replaces the traditional biochemical aeration method, and does not require complicated aeration equipment such as blower piping systems and aeration heads; when used in aquaculture, it can effectively improve The conversion efficiency of oxygen per unit power.

The metal filtering device includes a magnet mount 20 and a magnet 21 fixed on the inner wall of the housing. The magnet 21 is installed on the magnet mount 20. After the sewage enters the jet pump 5 under the action of the water pump 3, the jet pump 5 Negative pressure is generated, and the ejector 6 sucks air to make the sewage produce micro-bubbles, which carry the oil droplets and suspended matter in the sewage to float to the water surface. By setting the magnet 21, the magnetism of the magnet can be used to absorb some metals contained in the sewage to the water surface. Magnet 21 goes up, further improves the effect of sewage treatment, and described sewage treatment tank one 19 tops are provided with sewage purification drug input port 12, and sewage treatment tank one 19 is provided with agitator 13, described sewage treatment tank two 18, sewage treatment The bottom of the tank three 16 is provided with a drain valve 17, the sewage treatment tank two 18 is provided with a packing column 14, and the sewage treatment tank three 16 is provided with a fiber filter element 25, and the sewage treatment tank one 19 is supplied to the sewage treatment tank one 19 through the sewage purification drug input port 12 as required. Add medicine inside, and use the stirring device 13 to accelerate the reaction of medicine and sewage, enhance the reaction effect, thereby complete the sedimentation or removal of particulate matter in sewage, the setting of sewage valve 17 is convenient for sewage treatment tank two 18, sewage treatment tank three 16 For the cleaning of dirt, the packing column 14 can carry out layer-by-layer adsorption treatment of the dirt in the sewage, and the water after the treatment in the sewage treatment tank 2 18 enters the sewage treatment tank 3 16 for further adsorption through the fiber filter element 25, and the adsorption effect is good.

The packing column 14 is mainly used for gas absorption, which adopts a dense structure as shown in the figure, and the fiber filter element 25 adopts an activated carbon fiber filter element, which is mainly used for the adsorption of suspended solids, and its function is mainly reflected in the material.

Sewage purification drugs generally include various inorganic coagulants and flocculants such as aluminum salts and iron salts, which are mainly used for sewage sedimentation and flocculation.

Sewage treatment: In the sewage treatment system using various inorganic coagulants and flocculants such as aluminum salts and iron salts, if the amount of water to be treated exceeds the processing capacity of the clarification tank or the flocs in the water are too late to settle due to other factors Drift, only need to add 0.1-2ppm of PAM coagulation aid, can significantly improve the settlement effect. Moreover, the COD and chromaticity indicators of the treated water will also be significantly improved.

Sludge concentration: The use of 0.3-2ppm inorganic coagulant can reduce the ratio of sludge to water in the biochemical tank and sludge concentration tank, and improve the utilization rate of biochemical tank and sludge concentration tank. The sludge concentration can be increased from 3--10g/L to 30--100g/L, which greatly reduces the weight of sludge in the next step of sludge dehydration, and improves the efficiency of sludge dehydration equipment and personnel.

Sludge dehydration: The model and dosage and the drying of the mud cake after dehydration are different depending on the type of sludge, so it is necessary to test and select various types of products.

In this embodiment, the upper part of the sewage treatment tank 19 is provided with a water outlet 3, the upper part of the sewage treatment tank 18 is provided with a water outlet 4, and the lower part is provided with a water inlet 3, and the lower part of the sewage treatment tank 16 is provided with a water inlet 4 , the treated water flows out from the top of the sewage treatment tank three 16, and the dirt in the water settles in the lower layer under the action of gravity, and the treatment effect is improved by utilizing the effect of gravity.

The working process of the utility model is shown in Figure 3: the water in the circulating pool 1 enters the treatment tower through the water pipe 12 under the action of the water pump 3, and then enters the jet air flotation machine jet air flotation, and after the jet air flotation is completed, it is discharged under gravity. Under the action of the sludge filter, it enters the sludge filter device 9 to remove the silt and oil in the water. After the filter of the silt and oil is completed, the water enters the metal filter device for metal adsorption treatment. Save space while saving energy. After the circulating water is processed through the treatment tower, it enters the sewage treatment tank unit for further biochemical reactions, adsorption, and filtration, thereby completing the precipitation and removal of particulate matter in the water. The layout of the entire process is reasonable and the removal of impurities The effect is good, and the treated water enters the clean water pool 15 for storage and waits for utilization.

What is described above is only the preferred embodiment of the utility model, it should be pointed out that, for those of ordinary skill in the art, without departing from the premise of the utility model creative concept, some deformations and improvements can also be made. Belong to the protection scope of the utility model.

Claims (6)

1. A circulating water treatment system, comprising a circulating water pool (1), a treatment tower, a sewage treatment tank unit and a clear water tank (15), characterized in that: the upper part of the treatment tower is provided with a water inlet one, and the lower part is provided with a water outlet One, the sewage treatment tank unit is composed of a sewage treatment tank one (19), a sewage treatment tank two (18) and a sewage treatment tank three (16), and the sewage treatment tank one (19) is provided with a water inlet two, The sewage treatment tank three (16) is provided with a water outlet two, the circulating pool (1) is connected with the water inlet one, and the clean water pool (15) is connected with the water outlet two, and the treatment tower includes a shell, a jet air flotation machine , sludge filtering device (9) and metal filtering device, the jet air flotation machine, sludge filtering device (9) and metal filtering device are arranged inside the shell successively from top to bottom, and the jet air A water pipe one (2) is connected between the floating machine and the circulating pool (1), and a water pump (3) is arranged on the water pipe one (2). 2. A circulating water treatment system according to claim 1, characterized in that: the housing is composed of a shell body (4) and a shell cover (7) hinged, and the upper surface of the shell cover (7) is provided with Transparent observation window (8), shell cover (7) side wall is equipped with wire wheel (11). 3. A kind of circulating water treatment system according to claim 1, characterized in that: the jet air flotation machine is composed of a jet pump (5) and a jet device (6), and the jet device (6) is located at the jet pump ( 5) Above, the jet pump (5) includes a nozzle, a suction chamber, a mixing tube and a diffuser; the jet (6) includes a nozzle, a suction chamber and a diffuser. 4. A kind of circulating water treatment system according to claim 1, characterized in that: said metal filtering device comprises a magnet (21) mounting frame (20) and a magnet (21) fixed on the inner wall of the housing, said Magnet (21) is installed on the magnet (21) mounting frame (20). 5. A kind of circulating water treatment system according to claim 3, characterized in that: the sewage treatment tank one (19) top is provided with a sewage purification drug input port (12), and the sewage treatment tank one (19) is provided with There is a stirring device (13), the bottom of the sewage treatment tank two (18) and the sewage treatment tank three (16) is provided with a blowdown valve (17), and the sewage treatment tank two (18) is provided with a packing column (14) , the sewage treatment tank three (16) is provided with a fiber filter element (25). 6. A circulating water treatment system according to claim 5, characterized in that: the fiber filter element (25) is an activated carbon fiber filter element, and the material of the jet (6) is PVDF fluoroplastic.