CN218089135U - Back-flushing type seawater desalination process tail water treatment equipment - Google Patents

Abstract

The utility model relates to a sea water desalination technical field provides a back flush formula sea water desalination technology tail water treatment facilities, including the sand filtration jar, sand filtration jar right side top intercommunication outlet pipe, the knockout drum is equipped with to sand filtration jar top one side, feeds through the water pipe on the knockout drum, and knockout drum one side bottom intercommunication U type pipe, inside U type pipe one end extended to the sand filtration jar, the sand filtration jar top was run through and is got into the center tube, and the center tube is linked together with U type pipe, center tube top intercommunication siphon, siphon other end intercommunication blowdown pond, and the outside one side of sand filtration jar is equipped with the egg and divides the ware, and the built-in bubble generating device of egg branch ware. The defects that the existing tail water treatment equipment is easy to block and fine suspended matters still exist in the tail water treatment equipment and cannot be thoroughly cleaned are overcome.

Description

Back-flushing type seawater desalination process tail water treatment equipment

Technical Field

The utility model relates to a sea water desalination technical field, in particular to back flush type sea water desalination process tail water treatment equipment.

Background

In order to relieve the shortage of fresh water resources, the application of a seawater desalination process is gradually wide, but a large amount of process tail water is also generated in the seawater desalination process, and in order to solve the secondary waste of the process tail water, some treatment equipment designed for the process tail water appears on the market, but at present, the treatment equipment of the seawater desalination process tail water on the market generally has certain defects, for example, the existing seawater desalination process tail water equipment adopts a sand filter tank for filtration, and the fiber or sludge in the surface layer of an internal sand layer and sand is accumulated more after being used for a long time, so that the blockage is easily caused, the continuous filtration cannot be realized, and secondly, the treatment effect is poor, fine suspended matters exist in desalted clean water, and the fresh water cannot be directly utilized.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing a back flush type seawater desalination process tail water treatment facility for solve easily block up and still have the defect that fine suspended solid can't thoroughly clear up in the current tail water treatment facility.

(II) contents of utility model

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a back flush formula sea water desalination technology tail water treatment facilities, includes the sand filtration jar, sand filtration jar right side top intercommunication outlet pipe, the knockout drum is equipped with to sand filtration jar top one side, communicate the upper hose on the knockout drum, knockout drum one side bottom intercommunication U type pipe, U type pipe one end extends to inside the sand filtration jar, the sand filtration jar top is run through and is got into the center tube, the center tube with U type pipe is linked together, center tube top intercommunication siphon, the siphon other end intercommunication blowdown pond, the outside one side of sand filtration jar is equipped with the egg and divides the ware, the built-in bubble generating device of egg branch ware.

Preferably, the sand filtration tank is internally divided into a clear water area, a sand filtration area and a flow distribution area from top to bottom, the clear water area is communicated with a wall pipe between the sand filtration areas, and a sewage discharge outlet is formed in the middle area of the flow distribution area.

Preferably, a water inlet at one side outside the egg separator is communicated with a water outlet pipe at one side of the sand filter tank through a water inlet pipe of the egg separator.

Preferably, one side of the bottom of the egg separator is communicated with a butterfly valve drain pipe used for controlling the water level of the egg separator to reach the conical opening.

Preferably, a transparent cover is covered on the conical opening at the top of the egg separator.

Preferably, the bottom of one side of the egg separator is provided with a water pump, the surface of the water pump is communicated with a water pumping pipe, the other end of the water pumping pipe is communicated with the bottom of the egg separator, the upper part of the water pump is communicated with a flushing pipe, and the flushing pipe penetrates from the top of the transparent cover to enter the transparent cover.

Preferably, one side of the outer part of the transparent cover is communicated with a foam sewage draining pipe, and the foam sewage draining pipe is communicated with a sewage draining outlet at the bottom of the egg separator.

(III) advantageous effects

The utility model provides a pair of back flush type seawater desalination process tail water treatment facility, its advantage lies in:

1. the sand filtration tank is used in a partitioning mode, a back-washing flow is achieved through the siphon, water in the clear water area returns to the sand layer under the action of gravity, the siphon generates a siphon effect to absorb the water upwards, the water passes through the sand layer and rubs and washes the sand layer for 3-5 minutes, the clear water area is used for taking away fibers and sludge filtered by the sand layer, the fibers and the sludge enter the sewage disposal pool through the siphon, the sand layer is drawn and washed clean, continuous use of the sand filtration tank is achieved, manual cleaning is not needed, and the artificial cost is reduced.

2. The filtered clear water enters the egg separator for secondary treatment, the egg separator utilizes the built-in bubble generating device to generate a large amount of micro bubbles below 50 microns, and the bubbles wrap the tiny fibers in the water and are discharged through the top conical port, so that the secondary treatment is completed, the suspended matters in the clear water are greatly reduced, and the clear water treatment effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the structure of the present invention.

The reference numerals in the figures illustrate: 1. a sand filtration tank; 2. a sand filtration zone; 3. a wall pipe; 4. a water feeding pipe; 5. a U-shaped tube; 6. a clear water zone; 7. a water outlet pipe; 8. a water distribution box; 9. a central tube; 10. a siphon tube; 11. a sewage disposal pool; 12. a sewage draining outlet; 13. a shunting region; 14. an egg separator; 15. a flushing pipe; 16. a transparent cover; 17. The water inlet pipe of the egg separator; 18. a foam blow-off pipe; 19. a water pumping pipe; 20. a water pump; 21. a bubble generating device; 22. butterfly valve drain pipe.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the utility model provides a back-flushing seawater desalination process tail water treatment equipment, including sand filtration tank 1, its characterized in that, sand filtration tank 1 right side top communicates outlet pipe 7, sand filtration tank 1 top one side is equipped with water knockout box 8, water knockout box 8 goes up to communicate upper hose 4, water knockout box 8 one side bottom communicates U type pipe 5, U type pipe 5 one end extends to the inside of sand filtration tank 1, sand filtration tank 1 top runs through and gets into center tube 9, center tube 9 is linked together with U type pipe 5, center tube 9 top communicates siphon 10, the other end of siphon 10 communicates blowdown pool 11, sand filtration tank 1 outside one side is equipped with egg separator 14, egg separator 14 embeds bubble generating device 21;

the interior of the sand filtering tank 1 is divided into a clear water area 6, a sand filtering area 2 and a flow dividing area 13 from top to bottom, a wall pipe 3 is communicated between the clear water area 6 and the sand filtering area 2, and a sewage outlet 12 is arranged in the middle area of the flow dividing area 13;

example 1

The sand filtering tank 1 consists of two parts, wherein the first part is a clear water area 6 at the upper part of the tank body, the second part is a sand filtering area 2 at the lower part, and the lower sand filtering area 2 is communicated with the clear water area 6 through a wall pipe 3;

in the normal filtration process: the water flows from the upper water pipe 4 → the water diversion box 8 → the U-shaped pipe 5 → the central pipe 9 → goes downwards into the sand layer → the bottom of the sand layer goes out water → the wall pipe 3 → the clean water area 6 → the water outlet pipe 7 → goes into the egg separator 14;

a back washing process: consists of two parts of water flow;

a first part: the pumped water continuously enters the upper water pipe 4 → the water diversion box 8 → the U-shaped pipe 5 → the sand layer (blocked by the sludge and the fiber) downwards enters the central pipe 9 → the siphon 10 → the sewage disposal pool 11 after the siphon is generated;

a second part: after siphoning is generated → water in the clean water area 6 → downwards passes through the wall pipe 3 due to the action of gravity → upwards after the bottom of the sand layer → the sand layer of the filtered water → a central pipe 9 → a siphon 10 → a sewage tank 11;

example 2

The pumped water continuously enters the water feeding pipe 4 → the water distribution box 8 → the U-shaped pipe 5 → downwards enters the sand layer, when fibers or sludge are accumulated in the surface layer and sand of the sand layer at a depth of 30-50cm, the water passing through the sand layer is smaller than the pumped water inlet amount, the water continuously enters the pump, the water can climb upwards to the siphon pipe 10 along the central pipe 9, the siphon pipe 10 produces siphon effect when the water is discharged, the water in the clear water area 6 in the tank body flows upwards after downwards entering the bottom of the sand filter layer along the wall pipe 3 under the action of gravity, and the water in the water outlet pipe 7 can not be discharged at the moment, the sand filter layer can be loosened and boiled in the upwards flowing process, the fiber and sludge in the sand can be discharged, the rubbing process can be carried out for 3-5 minutes, (the siphon process is automatically stopped after the water pumped into the clear water area is emptied, the water of the pump enters the sand layer again and is normally filtered), and the water in the clear water area 6 is completely discharged, and the fibers and the sand is washed away;

example 3

1. When cleaning a sand layer, firstly observing to ensure that a drain outlet 12 on the bottom side of a sand filter tank 1 is in a closed state, filling water for the first use, observing that the water level rises to 2/3 of the water level of the tank body by a person entering a phi 500 hole on the top of the tank, stopping water inflow without overflowing from a water outlet pipe 7, soaking for 3-4 hours, opening the drain outlet 12, draining the water, then closing the drain valve, and then pumping the water to the 2/3 position of the tank body on the top, repeating the operation for 4 times, closing the drain valve by taking the clear and transparent water outlet pipe as the standard, (or opening the drain valve while feeding water after 2 times of operation till the clear and transparent water outlet of the drain pipe is clear and the water outlet valve is closed to start a normal filtering process);

2. through the operation of the steps, the sewage pipe is normally used after the water is clear;

3. when the device is operated, if the water inlet is clean, frequent flushing still occurs, (the flushing occurs when the distance does not exceed 1 hour), and the reason for the situation is that: the filled sand contains too much fine sand with the granularity less than 80 meshes, a large amount of fine sand cannot be taken out of the tank body after the filling and the flushing, at the moment, a sand filling hole on the side surface of the tank body needs to be opened, the extra-fine sand with the thickness of 3-5 centimeters on the surface layer is cleaned, a sand filling hole blind plate is tightened, and the water is supplied for use again. If the frequent flushing phenomenon still occurs, opening the sand filling hole again to clean the extra-fine sand of about 2 centimeters;

4. after the sand-free cleaning agent is used for 30 days, frequent flushing occurs, the solution in step 3 is repeated, and the surface layer fine sand is cleaned by 2-3 centimeters (taking the sand as the standard, except the thickness of the mud);

5. after the sand is used for 6 months, frequent flushing occurs, and the sand on the surface layer 2 of the surface layer is replaced by about 50 centimeters;

6. if the water yield is very low, the water in the water dividing tank 8 at the top of the tank body overflows, the sand filtering tank 1 does not have the drainage and flushing phenomenon, and the problems are that too much fine mud exists in the inlet water, gaps in sand layers are filled with the mud to harden the sand layers, at the moment, sand filling holes in the sand filtering tank 1 are opened to clean 2 sand layers at the upper parts of 5 sand layers, bean-grain sand (the diameter is about 10 mm) leaks out, the sand filling hole blind plates are closed, the clear water is added to soak the step in the step 3, the sand filling hole blind plates are opened to fill the sand layers at the surface layer 2 after the outlet water is clear, and then the step 3 is repeated to wash the sand (when the sand is reused, the problem of high mud content in the water is solved firstly, the sand can be normally used in the future, and otherwise, the problem of hardening of the sand layers in a short time can also occur);

be linked together through egg separator oral siphon 17 between 14 outside one side water inlets of egg separator and the outlet pipe 7 of sand filtration jar 1 one side, 14 bottom one side intercommunication of egg separator has the butterfly valve drain pipe 22 that is used for controlling 14 water levels of egg separator to bell mouth department, 14 top bell mouth upper shield of egg separator has translucent cover 16, 14 one side bottom of egg separator is equipped with water pump 20, water pump 20 surface intercommunication pump suction pipe 19, pump suction pipe 19 other end and 14 bottom intercommunications of egg separator, water pump 20 upper portion intercommunication wash pipe 15, wash pipe 15 runs through the entering from translucent cover 16 tops, 16 outside one side intercommunication foam blow off pipe 18 of translucent cover, foam blow off pipe 18 and 14 bottom blow off mouth intercommunications of egg separator.

Example 4

Pumping the water discharged by the plate-and-frame filter press from the water collecting tank into a sand filtering tank 1, filtering the water by sand in the sand filtering tank 1 to remove most suspended matters, and discharging the clear water into a clear water tank after further removing fine suspended matters by an air floatation principle in an egg separator 14;

the effluent of the sand filtering tank 1 automatically flows into the egg separator 14 by gravity, the bottom of the egg separator 14 is provided with a bubble generating device 21 to generate a large amount of micro bubbles with the diameter of less than 50 microns, the bubbles wrap fine fibers in a water body and are discharged into a sewage pipeline through a conical opening at the top, and clear water is discharged into a clear water tank through a butterfly valve water discharge pipe 22;

example 5

The jet water pump 20 used by the protein separator is manually controlled to start through a distribution box, and the jet water pump 20 is forbidden to start under the condition that no water exists in the protein separator (the mechanical sealing ring is burnt out within 1 minute under the condition that the jet water pump 20 does not contain water);

after the egg separator 14 is filled with water, the butterfly valve on one side of the egg separator 14 is used for controlling the water level in the tank body, the water level is controlled on the basis that foams bulge out of a transparent organic glass inner conical cap transparent cover 16 at the top of the egg separator 14, foams generated under the action of the bubble generating device 21 float on a conical opening at the top of the egg separator 14 and overflow to the outside, overflowing foams are discharged to the outside through a foam discharge pipe 18, clean water at the lower part can be used as a cleaning condition to clean the upper conical opening, a water pump 20 pumps clean water inside the egg separator 14, the clean water reaches the top of the transparent cover 16 with the organic glass inner conical riser through a flushing pipe 15, the conical opening is cleaned, the cleanness of the conical opening is guaranteed, the clean wastewater is discharged through the foam discharge pipe 18 again, part of the wastewater enters the egg separator 14, the clean wastewater is cleaned again after vibrating through the bubble generating device 21 and continuously ascends to the conical opening, and finally the clean water is discharged to a clean water tank through the butterfly valve 22 and collected.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. The utility model provides a back flush formula sea water desalination technology tail water treatment facilities, includes sand filtration jar, its characterized in that, sand filtration jar right side top intercommunication outlet pipe, the knockout drum is equipped with on sand filtration jar top one side, the intercommunication upper hose on the knockout drum, knockout drum one side bottom intercommunication U type pipe, U type pipe one end extends to inside the sand filtration jar, sand filtration jar top is run through and is got into the center tube, the center tube with U type pipe is linked together, center tube top intercommunication siphon, the siphon other end intercommunication blowdown pond, sand filtration jar outside one side is equipped with the egg separator, the built-in bubble generating device of egg separator.

2. The back-flushing seawater desalination process tail water treatment equipment as claimed in claim 1, wherein the inside of the sand filtration tank is divided into a clear water area, a sand filtration area and a diversion area from top to bottom, a wall pipe is communicated between the clear water area and the sand filtration area, and a sewage discharge outlet is arranged in the middle area of the diversion area.

3. The back-flushing seawater desalination process tail water treatment device of claim 1, wherein a water inlet at one side outside the egg separator is communicated with a water outlet pipe at one side of the sand filter tank through a water inlet pipe of the egg separator.

4. The back-flushing seawater desalination process tail water treatment equipment as claimed in claim 1, wherein one side of the bottom of the egg separator is communicated with a butterfly valve drain pipe for controlling the water level of the egg separator to reach a conical opening.

5. The back-flushing tail water treatment equipment for the seawater desalination process as claimed in claim 1, wherein a transparent cover is covered on a conical opening at the top of the egg separator.

6. The back-flush type seawater desalination process tail water treatment equipment as claimed in claim 5, wherein a water pump is arranged at the bottom of one side of the egg separator, the surface of the water pump is communicated with a water pumping pipe, the other end of the water pumping pipe is communicated with the bottom of the egg separator, the upper part of the water pump is communicated with a flushing pipe, and the flushing pipe penetrates into the top of the transparent cover.

7. The back-flushing seawater desalination process tail water treatment equipment as claimed in claim 5, wherein one side outside the transparent cover is communicated with a foam drain pipe, and the foam drain pipe is communicated with a drain outlet at the bottom of the egg separator.

Images