CN113087186A - Household drinking water defluorination system and defluorination method - Google Patents

Abstract

The invention belongs to the field of drinking water defluorination, and relates to a domestic drinking water defluorination system which comprises a shell, wherein a purified water cavity is arranged in the shell, a water inlet is fixedly arranged on the left side wall of the purified water cavity, the water inlet is communicated with a water inlet pipe, a water outlet is fixedly arranged on the right side wall of the purified water cavity, the water outlet is communicated with a water outlet pipe, and a fluorine detector is fixedly arranged in the water outlet. The invention filters the introduced water firstly, and uses a dynamic adsorption method for fluorine ions in the water, and utilizes the hydroxyl phosphorus lime filter material to adsorb the fluorine ions, when the fluorine ions in the water are detected to be less, the contact area of the filter material is changed, the service life is prolonged, and when the filter material needs to be cleaned, high water pressure is generated, so that the filter materials collide with each other, and the fluorine ions adsorbed on the surface are vibrated and fall off.

Description

Household drinking water defluorination system and defluorination method

Technical Field

The invention belongs to the field of drinking water fluorine removal, and particularly relates to a household drinking water fluorine removal system and a household drinking water fluorine removal method.

Background

The distribution range of the underground water containing fluorine in China is wide, chronic poisoning can be caused by long-term drinking of water with high fluorine content, and particularly serious damage is caused to teeth and bones. The light patient suffers from dental fluorosis, which is characterized by damaged enamel, premature tooth loss and the like, while the heavy patient suffers from bone joint pain, even bone deformation, stooping and humpback and the like, and completely loses labor capacity. The harm of high fluorine water is serious, and the content of fluorine specified in the drinking water standard of China must not exceed 1mg/L, so that the fluorine ions in the drinking water need to be removed.

At present, the general domestic and foreign defluorination technology mainly adopts an adsorption method, but the method has certain limitation, the regeneration problem of an adsorbent in the adsorption method is one of key factors influencing whether an adsorption material can be used for a defluorination filter material, the defluorination filter material has short service life, when the defluorination filter material cannot be regenerated, the filter material needs to be integrally replaced, the replacement process is very troublesome, which is an important reason that a plurality of defluorination devices cannot be used for a long time, and the adsorption needs certain time, and the dynamic adsorption method is generally adopted to accelerate the adsorption of fluorinion.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a domestic drinking water defluorination system which can filter sand and stone in water, adsorb fluoride ions, and can repeatedly use a filter material after vibration treatment, reduce the use area of the filter material when the fluoride ions in the water are less, and ensure the service life of the filter material.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a domestic drinking water defluorination system, includes the casing, be equipped with the water purification chamber in the casing, the fixed water inlet that is equipped with on the water purification chamber left side wall, water inlet and inlet tube intercommunication, the fixed delivery port that is equipped with on the water purification chamber right side wall, delivery port and outlet pipe intercommunication, the internal fixed fluorine detector that is equipped with of delivery port, the fluorine detector is used for detecting the fluorine content of effluent, water purification chamber left side is equipped with grit filter equipment, and grit filter equipment is used for the inflow the water in the water purification intracavity carries out the grit and filters, the fixed electromagnetism spout that is equipped with on the upper and lower lateral wall of water purification intracavity, be equipped with supercharging device in the electromagnetism spout, supercharging device is used for reinforcing water pressure and jet velocity, water purification chamber right side is equipped with fluorine filter equipment, and fluorine.

Preferably, sand and stone filter equipment is including fixing the left grit filter plate in water purification chamber, the mouth is collected to the fixed grit that is equipped with on the left lower lateral wall in water purification chamber, the grit is collected the intraoral chute that is equipped with, the chute downside is equipped with a baffle.

Preferably, the supercharging device comprises a fixed plate fixedly arranged at the left end of the electromagnetic chute, a water inlet one-way valve is arranged on the fixed plate, an electromagnetic sliding plate is arranged on the electromagnetic chute in a sliding manner, a water outlet one-way valve is arranged on the electromagnetic sliding plate, an electric control shaft is rotatably arranged on the lower side wall of the water purification cavity, an electric control wheel is fixedly arranged on the electric control shaft, a hollow supercharging water outlet is rotatably arranged at the right side of the electromagnetic sliding plate, a double gear ring is fixedly arranged on the supercharging water outlet, teeth are arranged on the inner ring wall and the outer ring wall of the double gear ring, outer ring teeth of the double gear ring are meshed with the electric control wheel, a fixed disc is fixedly arranged on the right side wall of the electromagnetic sliding plate, a plurality of water baffle shafts are annularly and rotatably arranged on the fixed disc, an internal tooth meshing wheel is fixedly arranged on the left side of each water baffle shaft, the internal tooth meshing wheel is meshed with the inner ring teeth of, the water baffle is used for changing the diameter of a passage in the pressurization water outlet.

Preferably, fluorine filter equipment is including fixing intelligent motor on the lower right lateral wall of water purification chamber, be equipped with the motor shaft on the output of intelligent motor, the fixed motor wheel that is equipped with on the motor shaft, it is equipped with the quill shaft to rotate on the right back lateral wall of water purification chamber, the fixed meshing wheel that is equipped with on the quill shaft, the meshing wheel with the motor wheel meshing, the fixed two filter plate covers that are equipped with on the upper and lower right lateral wall of water purification chamber, the quill shaft right-hand member is fixed to be equipped with and rotates the filter plate, rotate the filter plate with filter plate cover sliding connection, the annular is rotated and is equipped with a plurality of filter tube on rotating the filter plate, every filter tube with it is connected with a.

Preferably, each filter material pipe is filled with a hydroxyapatite filter material used for adsorbing fluorine ions in water, the upper side wall and the lower side wall of each filter material pipe are fixedly provided with a rotating plate, the left side of the rotating plate is fixedly provided with an impeller shaft, and the impeller shaft is fixedly provided with an impeller.

Preferably, a fixed filter plate is fixedly arranged on the right side wall of the filter plate sleeve, a plurality of filter tubes which are arranged in the same way as the filter tubes on the rotary filter plate but are slightly larger than the filter tubes on the rotary filter plate are arranged on the fixed filter plate, and the inner structures of the filter tubes on the fixed filter plate are consistent with those of the filter tubes on the rotary filter plate.

Preferably, the invention also relates to a domestic drinking water defluorination method:

s1, introducing water and carrying out sand filtration;

s2, applying a hydroxyl phosphorus lime filter material to the drinking water to carry out dynamic adsorption filtration;

s3, detecting the fluorine concentration of the drinking water at the tail end;

s4, if the concentration is too high, the contact surface of the water and the filter is correspondingly increased; if normal, the original shape is maintained;

s5, if the concentration is detected to be too high for a long time, changing the water flow and the water pressure to carry out adhesion cleaning on the surface of the hydroxyapatite filter material;

s6, the fluorine concentration of the drinking water is recovered to be normal, and the water flow is readjusted to be in a normal state.

Rivers enter into the water purification intracavity through the water inlet, and the grit of aquatic is filtered by the grit filter plate, and rivers continue to the right, and the grit is collected in the mouth entering chute along with the grit falls into to the orientation of grit filter plate.

When the intelligent water filter is in an initial state, the electromagnetic sliding plate is arranged at the rightmost end of the electromagnetic sliding groove and does not move, the water baffle does not block the pressurizing water outlet, the water outlet is enabled to keep the maximum flow, the intelligent motor is not started, the motor shaft does not rotate, the hollow shaft does not rotate, the rotating filter plate does not rotate, water flows through the filter tube on the rotating filter plate rightwards and flows through the filter tube on the fixed filter plate, and the water flows into the water outlet to.

When the fluorine detector detects that fluorine content is too high, start intelligent motor, it is rotatory to drive the motor shaft, make the motor wheel rotate, the meshing quill shaft is rotatory, it is rotatory to drive the rotation filter plate, make the filter material pipe on the rotation filter plate and the filter material pipe transmission area on the fixed filter plate increase, improve the area of contact of hydroxyl phosphorus lime filter material in the filter material pipe and water, promote the adsorption effect to aquatic fluorine, if the fluorine detector detects that fluorine content belongs to normal value, can start intelligent motor reversal, make the filter material pipe on the rotation filter plate and the filter material pipe transmission area on the fixed filter plate diminish, water efficiency has been slowed down, filter system's burden is lightened, the life of filter material has been prolonged simultaneously, avoid the overuse waste, utilize dynamic filtration method, improve the filter effect to aquatic fluorine, and more abundant to the utilization of filter material.

When the fluorine detector detects the fluorine content for a long time and is too high, can accomplish step among the above-mentioned earlier, increase the area of contact of filter material and water, start electromagnetic slide reciprocating motion about in the electromagnetism spout, when the electromagnetism slide moves left in the electromagnetism spout, discharge the water pressure boost in fixed plate and the electromagnetism slide right, when the electromagnetism slide moves right in the electromagnetism spout, inhale water through the fixed plate, start automatically controlled axle simultaneously, it is rotatory to drive automatically controlled wheel, make the double gear circle rotatory, it is rotatory to mesh the internal tooth meshing wheel, it rotates to drive the breakwater axle, make the breakwater rotatory, reduce the flow area in pressure boost outlet, improve the effect of pressure boost, the impact force when strengthening the drainage.

The filter material pipe on the filter plate is rotated through rotating the filter material pipe on the filter plate to the right side by the pressure boost discharged water, drives the impeller rotatory, makes the impeller shaft rotate, drives and changes the board rotation, makes the filter material pipe rotate on rotating the filter plate, drives the hydroxyapatite filter material vibrations of placing on the filter material pipe lateral wall, through the collision of each other between the filter material, drops filter material surface adsorption's fluorine, prolongs the life of filter material, need not to dismantle the change, has improved fluorine filter equipment's simplicity.

Compared with the prior art, the domestic drinking water defluorination system has the following advantages:

1. through detecting fluorine content, change the area of contact of filter material pipe and water, adjustment water flow rate alleviates filtration system's burden, has prolonged the life of filter material simultaneously, avoids the overuse extravagant, utilizes dynamic filtration method, improves the filter effect to aquatic fluorine, and more abundant to the utilization of filter material.

2. If the fluorine content in water is too high, the permeation area of the filter material pipe on the rotary filter plate and the filter material pipe on the fixed filter plate is increased, the contact area of the hydroxyl phosphorus lime filter material in the filter material pipe and the water is increased, and the adsorption effect on the fluorine in the water is improved.

3. Through collision between the filter materials, the fluorine adsorbed on the surface of the filter material falls off, the service life of the filter material is prolonged, disassembly and replacement are not needed, and the simplicity of the fluorine filter device is improved.

Drawings

Fig. 1 is a schematic diagram of a domestic drinking water defluorination system.

Fig. 2 is a sectional view taken along a line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Fig. 4 is an enlarged view of the structure at C in fig. 1.

In the figure, 10, the housing; 11. a sandstone filter plate; 12. a sand collection port; 13. a chute; 14. a water inlet; 15. a water purifying cavity; 16. a filter plate sleeve; 17. rotating the filter plate; 18. a filter tube; 19. an impeller; 20. an impeller shaft; 21. (ii) a 22. A torsion spring; 23. fixing the filter plate; 24. a fluorine detector; 25. a water outlet; 26. a hollow shaft; 27. an engaging wheel; 28. a motor wheel; 29. a motor shaft; 30. an intelligent motor; 31. a pressurizing water outlet; 32. double gear rings; 33. an electrically controlled wheel; 34. an electric control shaft; 35. an electromagnetic skateboard; 36. an electromagnetic chute; 37. an internal gear-meshing wheel; 38. a breakwater shaft; 39. a water baffle; 40. fixing the disc; 41. a fixing plate; 42. and (6) rotating the plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in figure 1, a domestic drinking water defluorination system, including casing 10, be equipped with water purification chamber 15 in the casing 10, fixed water inlet 14 that is equipped with on the wall of water purification chamber 15 left side, water inlet 14 and inlet tube intercommunication, fixed delivery port 25 that is equipped with on the wall of water purification chamber 15 right side, delivery port 25 and outlet pipe intercommunication, delivery port 25 internal fixation is equipped with fluorine detector 24, fluorine detector 24 is used for detecting the fluorine content of the effluent, water purification chamber 15 left side is equipped with sand filtration device, sand filtration device is used for carrying out the sand filtration with the water that flows into water purification chamber 15, fixed being equipped with electromagnetism spout 36 on the upper and lower lateral wall in water purification chamber 15, be equipped with supercharging device in the electromagnetism spout 36, supercharging device is used for reinforcing water pressure and jet velocity, water purification chamber 15 right side is equipped with fluorine filter equipment, fluorine filter equipment is.

As shown in figure 1, the sand filter device comprises a sand filter plate 11 fixed on the left side of a water purification cavity 15, a sand collection port 12 is fixedly arranged on the left lower side wall of the water purification cavity 15, a chute 13 is arranged in the sand collection port 12, and a baffle plate is arranged on the lower side of the chute 13.

As shown in fig. 1 and 3, the supercharging device comprises a fixing plate 41 fixedly arranged at the left end of an electromagnetic chute 36, a water inlet one-way valve is arranged on the fixing plate 41, an electromagnetic slide plate 35 is slidably arranged on the electromagnetic chute 36, a water outlet one-way valve is arranged on the electromagnetic slide plate 35, an electric control shaft 34 is rotatably arranged on the lower side wall of a water purifying cavity 15, an electric control wheel 33 is fixedly arranged on the electric control shaft 34, a hollow supercharging water outlet 31 is rotatably arranged at the right side of the electromagnetic slide plate 35, a double gear ring 32 is fixedly arranged on the supercharging water outlet 31, teeth are respectively arranged on the inner ring wall and the outer ring wall of the double gear ring 32, outer ring teeth of the double gear ring 32 are meshed with the electric control wheel 33, a fixing disc 40 is fixedly arranged on the right side wall of the electromagnetic slide plate 35, a plurality of water baffle shafts 38 are annularly and rotatably arranged on the fixing disc 40, an engaging wheel 37 is fixedly arranged at the left side of each water baffle shaft 38, the inner engaging wheel, the water deflector 39 is used to change the passage diameter in the booster drain port 31.

As shown in fig. 1 and 2, the fluorine filtering device includes an intelligent motor 30 fixed on the lower right side wall of the purified water chamber 15, an output end of the intelligent motor 30 is provided with a motor shaft 29, the motor shaft 29 is fixedly provided with a motor wheel 28, the right rear side wall of the purified water chamber 15 is rotatably provided with a hollow shaft 26, the hollow shaft 26 is fixedly provided with an engaging wheel 27, the engaging wheel 27 is engaged with the motor wheel 28, the upper right side wall and the lower right side wall of the purified water chamber 15 are fixedly provided with two filter plate sleeves 16, the right end of the hollow shaft 26 is fixedly provided with a rotating filter plate 17, the rotating filter plate 17 is slidably connected with the filter plate sleeves 16, the rotating filter plate 17 is annularly provided with a plurality of filter pipes 18, and a torsion spring.

As shown in fig. 1, 2 and 4, each filter tube 18 is filled with a hydroxyapatite filter material for adsorbing fluorine ions in water, the upper and lower side walls of each filter tube 18 are fixedly provided with a rotating plate 42, the left side of the rotating plate 42 is fixedly provided with an impeller shaft 20, and the impeller shaft 20 is fixedly provided with an impeller 19.

As shown in fig. 1 and 2, a fixed filter plate 23 is fixedly arranged on the right side wall of the filter plate sleeve 16, a plurality of filter tubes 18 which are arranged in the same way as the filter tubes 18 on the rotary filter plate 17 but are slightly larger are arranged on the fixed filter plate 23, and the filter tubes 18 on the fixed filter plate 23 and the filter tubes 18 on the rotary filter plate 17 have the same internal structure.

The invention also relates to a defluorination method for household drinking water, which comprises the following steps:

s1, introducing water and carrying out sand filtration;

s2, applying a hydroxyl phosphorus lime filter material to the drinking water to carry out dynamic adsorption filtration;

s3, detecting the fluorine concentration of the drinking water at the tail end;

s4, if the concentration is too high, the contact surface of the water and the filter is correspondingly increased; if normal, the original shape is maintained;

s5, if the concentration is detected to be too high for a long time, changing the water flow and the water pressure to carry out adhesion cleaning on the surface of the hydroxyapatite filter material;

s6, the fluorine concentration of the drinking water is recovered to be normal, and the water flow is readjusted to be in a normal state.

Water flows into the water purifying cavity 15 through the water inlet 14, sand in the water is filtered by the sand filter plate 11, the water flow continues to the right, and the sand falls into the sand collecting port 12 along with the orientation of the sand filter plate 11 and enters the chute 13 to be collected.

In the initial state, the electromagnetic sliding plate 35 is at the rightmost end of the electromagnetic sliding groove 36, the electromagnetic sliding plate 35 does not move, the water baffle 39 does not block the supercharging water outlet 31, so that the supercharging water outlet 31 keeps the maximum flow, the intelligent motor 30 is not started, the motor shaft 29 does not rotate, the hollow shaft 26 does not rotate, the rotating filter plate 17 does not rotate, and water flows through the filter tubes 18 on the rotating filter plate 17, flows through the filter tubes 18 on the fixed filter plate 23 rightwards and enters the water outlet 25 to flow out.

When the fluorine detector 24 detects that the fluorine content is too high, the intelligent motor 30 is started to drive the motor shaft 29 to rotate, so that the motor wheel 28 rotates to engage the hollow shaft 26 to rotate, the rotary filter plate 17 is driven to rotate, the permeation area of the filter tube 18 on the rotary filter plate 17 and the filter tube 18 on the fixed filter plate 23 is increased, the contact area of the hydroxyl phosphorus lime filter material in the filter tube 18 and water is increased, and the adsorption effect on fluorine in water is improved. If fluorine detector 24 detects fluorine content and belongs to the normal value, then can start the reversal of intelligent motor 30 for filter tube 18 on rotating filter plate 17 and the filter tube 18 through area on the fixed filter plate 23 diminish, slowed down rivers efficiency, alleviateed filtration system's burden, prolonged the life of filter material simultaneously, avoid the overuse extravagant, utilize dynamic filtration method, improve the filter effect to aquatic fluorine, and more abundant to the utilization of filter material.

When the fluorine detector 24 detects that the fluorine content is too high for a long time, the steps are firstly completed, the contact area of the filter material and the water is increased, the electromagnetic sliding plate 35 is started to reciprocate left and right in the electromagnetic sliding groove 36, when the electromagnetic sliding plate 35 moves left in the electromagnetic sliding groove 36, the water in the fixed plate 41 and the electromagnetic sliding plate 35 is pressurized and discharged right, when the electromagnetic sliding plate 35 moves right in the electromagnetic sliding groove 36, the water is sucked in through the fixed plate 41, the electric control shaft 34 is started at the same time, the electric control wheel 33 is driven to rotate, the double-gear ring 32 rotates, the meshing inner-tooth meshing wheel 37 rotates to drive the water baffle shaft 38 to rotate, the water baffle 39 rotates, the flow area of the pressurized water outlet 31 is reduced, the pressurization effect is improved, and the impact force during water discharge is enhanced.

The water discharged by pressurization passes through the filter material pipe 18 on the rotation filter plate 17 rightwards, drives the impeller 19 to rotate, enables the impeller shaft 20 to rotate, drives the rotation plate 42 to rotate, enables the filter material pipe 18 to rotate on the rotation filter plate 17, drives the hydroxyapatite filter material placed on the side wall of the filter material pipe 18 to vibrate, and through mutual collision between the filter materials, the fluorine adsorbed on the surface of the filter material falls off, the service life of the filter material is prolonged, the filter material does not need to be disassembled for replacement, and the simplicity of the fluorine filter device is improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. The utility model provides a domestic drinking water defluorination system, includes casing (10), its characterized in that, be equipped with water purification chamber (15) in casing (10), fixed water inlet (14) that is equipped with on the water purification chamber (15) left side wall, water inlet (14) and inlet tube intercommunication, fixed delivery port (25) that is equipped with on the water purification chamber (15) right side wall, delivery port (25) and outlet pipe intercommunication, delivery port (25) internal fixation is equipped with fluorine detector (24), fluorine detector (24) are used for detecting the fluorine content of effluent, water purification chamber (15) left side is equipped with grit filter equipment, grit filter equipment is used for carrying out the grit with the water that flows into in water purification chamber (15) and filters, fixed be equipped with electromagnetic runner (36) on the upper and lower lateral wall in water purification chamber (15), be equipped with supercharging device in electromagnetic runner (36), supercharging device is used for reinforcing flow pressure and jet velocity, and a fluorine filtering device is arranged on the right side of the water purifying cavity (15) and is used for filtering fluorine in water.

2. A domestic drinking water defluorination system as claimed in claim 1 wherein: the sandstone filtration device comprises a sandstone filtration plate (11) fixed on the left side of the water purification cavity (15), a sandstone collection port (12) is fixedly arranged on the left lower side wall of the water purification cavity (15), a chute (13) is arranged in the sandstone collection port (12), and a baffle is arranged on the lower side of the chute (13).

3. A domestic drinking water defluorination system as claimed in claim 2 wherein: the supercharging device comprises a fixed plate (41) fixedly arranged at the left end of the electromagnetic sliding groove (36), a water inlet one-way valve is arranged on the fixed plate (41), an electromagnetic sliding plate (35) is arranged on the electromagnetic sliding plate (36) in a sliding manner, a water outlet one-way valve is arranged on the electromagnetic sliding plate (35), an electric control shaft (34) is arranged on the lower side wall of the water purification cavity (15) in a rotating manner, an electric control wheel (33) is fixedly arranged on the electric control shaft (34), a hollow supercharging water outlet (31) is arranged on the right side of the electromagnetic sliding plate (35) in a rotating manner, double gear rings (32) are fixedly arranged on the inner ring wall and the outer ring wall of the double gear rings (32), outer ring teeth of the double gear rings (32) are meshed with the electric control wheel (33), a fixed disc (40) is fixedly arranged on the right side wall of the electromagnetic sliding plate (35), and a plurality of water baffle plates (38) are arranged on the fixed disc, every breakwater axle (38) left side is fixed and is equipped with internal tooth meshing wheel (37), internal tooth meshing wheel (37) with the meshing of ring gear in two ring gear (32), fixed breakwater (39) that are equipped with on every breakwater axle (38), breakwater (39) are used for changing the diameter of route in pressure boost outlet (31).

4. A domestic drinking water defluorination system as claimed in claim 3 wherein: the fluorine filtering device comprises an intelligent motor (30) fixed on the right lower side wall of the water purifying cavity (15), a motor shaft (29) is arranged on the output end of the intelligent motor (30), a motor wheel (28) is fixedly arranged on the motor shaft (29), a hollow shaft (26) is rotatably arranged on the right rear side wall of the water purifying cavity (15), a meshing wheel (27) is fixedly arranged on the hollow shaft (26), the engaging wheel (27) is engaged with the motor wheel (28), two filter plate sleeves (16) are fixedly arranged on the right upper and lower side walls of the water purifying cavity (15), a rotary filter plate (17) is fixedly arranged at the right end of the hollow shaft (26), the rotary filter plate (17) is connected with the filter plate sleeve (16) in a sliding way, a plurality of filter tubes (18) are annularly and rotatably arranged on the rotary filter plate (17), and a torsion spring (22) is connected between each filter tube (18) and the rotary filter plate (17).

5. A domestic drinking water defluorination system as claimed in claim 4 wherein: each filter tube (18) is filled with a hydroxyapatite filter material which is used for adsorbing fluoride ions in water, the upper side wall and the lower side wall of each filter tube (18) are fixedly provided with a rotating plate (42), the left side of each rotating plate (42) is fixedly provided with an impeller shaft (20), and the impeller shaft (20) is fixedly provided with an impeller (19).

6. A domestic drinking water defluorination system as claimed in claim 5 wherein: the filter plate is characterized in that a fixed filter plate (23) is fixedly arranged on the right side wall of the filter plate sleeve (16), a plurality of arrangement modes are arranged on the fixed filter plate (23), the filter tubes (18) on the rotary filter plate (17) are identical but slightly larger than the filter tubes (18), and the filter tubes (18) on the fixed filter plate (23) are consistent with the inner structures of the filter tubes (18) on the rotary filter plate (17).

7. A domestic drinking water defluorination system as claimed in claims 1-5 wherein: relates to a domestic drinking water defluorination method:

s1, introducing water and carrying out sand filtration;

s2, applying a hydroxyl phosphorus lime filter material to the drinking water to carry out dynamic adsorption filtration;

s3, detecting the fluorine concentration of the drinking water at the tail end;

s4, if the concentration is too high, the contact surface of the water and the filter is correspondingly increased; if normal, the original shape is maintained;

s5, if the concentration is detected to be too high for a long time, changing the water flow and the water pressure to carry out adhesion cleaning on the surface of the hydroxyapatite filter material;

s6, the fluorine concentration of the drinking water is recovered to be normal, and the water flow is readjusted to be in a normal state.

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