CN217323630U

CN217323630U - High-hardness water softening treatment integrated equipment

Info

Publication number: CN217323630U
Application number: CN202122996468.9U
Authority: CN
Inventors: 王晖; 阮景; 邹蒙
Original assignee: Wuhan Xinqi Huaqing Membrane Engineering Co ltd
Current assignee: Wuhan Xinqi Huaqing Membrane Engineering Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-08-30
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to a water treatment technical field discloses a high rigidity water softening handles integration equipment, including inhalant canal, inhalant canal even has a plurality of agitator tank in proper order, is equipped with on the inhalant canal and adds alkali measuring pump and sodium carbonate measuring pump, and the hardwater entry intercommunication of endmost agitator tank and circulation tank, the hardwater export of circulation tank pass through the membrane hardwater entry intercommunication of booster pump with the membrane module, and the membrane water output of membrane module even has the clarified liquid passageway, is equipped with on the clarified liquid passageway and adds the acid measuring pump. The utility model discloses high rigidity water softening treatment integration equipment, the demineralized water quality is good, and process flow is simple, area is little, easily management and use.

Description

High-hardness water softening integrated equipment

Technical Field

The utility model relates to a water treatment technical field, concretely relates to high rigidity water softening integrated equipment.

Background

Hard water refers to water containing more soluble calcium and magnesium salts, and the use of hard water causes great troubles and damages to the production and the life of human beings, such as scaling inside pipelines, containers, boilers or kettles, and even equipment blockage. The conventional process for greatly reducing the hardness generally comprises the steps of precipitating in a precipitation tank after a dosing reaction and finally adjusting the pH, and has the defects of high manufacturing cost, large floor area, low hardness removal efficiency and the like.

Disclosure of Invention

The utility model aims at providing a high rigidity water softening treatment integration equipment to the not enough of above-mentioned technique, the demineralized water matter is good, and process flow is simple, area is little, easy management uses.

For realizing above-mentioned purpose, the utility model discloses a high rigidity water softening handles integration equipment, including inhalant canal, inhalant canal even has a plurality of agitator tank in proper order, last alkali dosing pump and the sodium carbonate dosing pump of adding of inhalant canal, endmost the hard water entry intercommunication of agitator tank and circulating tank, the hard water export of circulating tank passes through the membrane hard water entry intercommunication of booster pump with the membrane module, the membrane water output of membrane module even has the clear liquor passageway, be equipped with the acid dosing pump on the clear liquor passageway.

Preferably, be close to on the clarified liquid passageway the position that the water export was produced to the membrane is equipped with the valve No. one, lie in on the clarified liquid passageway the position between valve and the water export is produced to the membrane is equipped with air compressor, and after operation a period, the membrane module has certain jam, causes the productivity to descend, can pass through air compressor carries out the recoil from producing the water end with clean play water, guarantees that its steady operation recoil atmospheric pressure is at 0.1 ~ 0.3 MPa.

Preferably, the membrane concentrate outlet of the membrane module is communicated with the concentrate inlet of the circulation tank.

Preferably, a second valve is arranged between the hard water outlet of the circulating tank and the booster pump.

Preferably, a first pressure gauge and a third valve are arranged between the booster pump and the hard membrane water inlet of the membrane module.

Preferably, a second pressure gauge and a fourth valve are arranged between the membrane concentrated water outlet of the membrane module and the concentrated water inlet of the circulating tank.

Preferably, the membrane module is a tubular ceramic membrane, and the operating pressure in the membrane module is 0.1-0.2 MPa.

Preferably, the membrane material of the membrane module is one of alumina, titanium oxide or silicon oxide, a ceramic membrane separation technology is adopted, the membrane module can adapt to the separation of strongly alkaline materials, and belongs to a cross-flow filtration type fluid separation process.

Preferably, the membrane hard water inlet is located the bottom of membrane module, the membrane product water outlet is located the right side lower part of membrane module, the membrane dense water outlet is located the top of membrane module, the membrane module setting is advanced then is gone out from the top from the bottom, can guarantee that equipment when first operation, and remaining air in the equipment can be discharged effectively in the hard water down, is favorable to the filtration clarification of equipment, the membrane product water outlet sets up the right side lower part of membrane module is compared and is difficult for forming the backpressure, is favorable to the output of clarified liquid.

Compared with the prior art, the utility model, have following advantage:

1. compared with the traditional water softening process, the method has the advantages that the occupied area of equipment is reduced, and simultaneously, the precipitation rate of calcium and magnesium ions in hard water is increased;

2. the membrane filtration is added into the equipment, so that the material can be separated in a strong alkaline environment, the effect is obvious and stable, and the effect is better than that of a sedimentation tank, so that the hardness of the treated water is larger, and the application range of the treated softened water is wide;

3. the device is simple and easy, saves manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of the high hardness water softening treatment integrated equipment of the present invention.

The components in the figures are numbered as follows:

the device comprises a water inlet channel 1, a stirring tank 2, an alkali adding metering pump 3, a sodium carbonate metering pump 4, a circulating tank 5, a booster pump 6, a membrane assembly 7, a clarifying solution channel 8, an acid adding metering pump 9, an air compressor 10, a first valve 11, a second valve 12, a third valve 13, a fourth valve 14, a first pressure gauge 15, a second pressure gauge 16, a hard water inlet 51, a hard water outlet 52, a concentrated water inlet 53, a membrane hard water inlet 71, a membrane produced water outlet 72 and a membrane concentrated water outlet 73.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the utility model discloses high rigidity water softening handles integration equipment, including inhalant canal 1, inhalant canal 1 has linked three agitator tank 2 in proper order, is equipped with on inhalant canal 1 and adds alkali measuring pump 3 and sodium carbonate measuring pump 4, and endmost agitator tank 2 communicates with the hard water entry 51 of circulating tank 5, and the hard water export 52 of circulating tank 5 passes through booster pump 6 and membrane hard water entry 71 intercommunication of membrane module 7, and the membrane product water export 72 of membrane module 7 even has clarification liquid passageway 8, is equipped with on the clarification liquid passageway 8 and adds acid measuring pump 9.

Wherein, the position on the clarifying liquid channel 8 close to the membrane water outlet 72 is provided with a first valve 11, and the position on the clarifying liquid channel 8 between the first valve 11 and the membrane water outlet 72 is provided with an air compressor 10.

In addition, a membrane concentrated water outlet 73 of the membrane module 7 is communicated with a concentrated water inlet 53 of the circulating tank 5, a second valve 12 is arranged between the hard water outlet 52 of the circulating tank 5 and the booster pump 6, a first pressure gauge 15 and a third valve 13 are arranged between the booster pump 6 and the membrane hard water inlet 71 of the membrane module 7, and a second pressure gauge 16 and a fourth valve 14 are arranged between the membrane concentrated water outlet 73 of the membrane module 7 and the concentrated water inlet 53 of the circulating tank 5.

In the present embodiment, the membrane module 7 is a tubular ceramic membrane, the membrane material of the membrane module 7 is alumina, in other embodiments, the membrane module may be titanium oxide or silicon oxide, and the operating pressure in the membrane module 7 is 0.1 to 0.2 MPa.

In this embodiment, the membrane hard water inlet 71 is located at the bottom of the membrane module 7, the membrane produced water outlet 72 is located at the lower right side of the membrane module 7, and the membrane concentrated water outlet 73 is located at the top of the membrane module 7.

When the embodiment is operated, high-hardness wastewater to be treated enters the water inlet channel 1, NaOH is added through the alkali adding metering pump 3 to adjust the PH value to 11, and then sodium carbonate is added through the sodium carbonate metering pump 4 to precipitate calcium ions, magnesium ions and the like in the inlet water. Then the high hardness inflow water after the dosing treatment enters a first stirring tank 2 for stirring treatment, so that calcium and magnesium ions in the inflow water react with the medicament to form a precipitate, similarly, the hard water after the treatment by the first stirring tank 2 enters a second stirring tank 2 for stirring treatment through a pipeline, so that the calcium and magnesium ions further react with the medicament to form a precipitate, the hard water after the treatment by the second stirring tank 2 enters a third stirring tank 2 for stirring treatment through a pipeline, so that the calcium and magnesium ions fully react with the medicament to form a precipitate.

Then, the hard water treated by the three stirring tanks 2 enters the circulation tank 5 through the hard water inlet 51 of the circulation tank 5) for storage, and the hard water in the circulation tank 5 is pressurized by the booster pump 6 and enters the membrane hard water inlet 71 for treatment through the membrane module 7.

The membrane component 7 obtains the produced water through a membrane produced water outlet 72, and the clear liquid obtained by adding acid and adjusting the PH to 7 through an acid adding metering pump 9 is softened water.

Wherein, the air compressor 10 can provide clean compressed air to backflush the membrane module 7, and the concentrated water of the membrane module 7 flows back to the circulating tank 5 through the membrane concentrated water outlet 73 for circulating treatment again.

In the project of softening medium-high hardness wastewater in reclaimed water reuse of a certain battery plant in Wuhan, the daily treatment capacity is as follows: 30t/d, which is specifically as follows:

inlet hardness: 2000 to 3000ppm

Outlet hardness: less than or equal to 30ppm

The high-hardness wastewater conveyed by the front-stage process is conveyed to a high-hardness wastewater reservoir for storage, then the wastewater is conveyed to the treatment equipment through a conveying pump, meanwhile, a certain amount of NaOH is conveyed into the wastewater through an alkali adding metering pump 3, the pH is adjusted to 11-12, and then the wastewater is conveyed to the treatment equipmentCO control by sodium carbonate dosing pump 4 ₃ ^2- The input of the stirring tank is 3000ppm, the stirring tank 2 is introduced into a subsequent stirring tank 2 for stirring treatment, the temperature of the stirring tank 2 is controlled at 50 ℃, the rotating speed is 10r/min, and the wastewater treated by the stirring tank enters a circulating tank 5.

The wastewater in the circulating tank 5 is pressurized by a booster pump 6 and enters a membrane module 7 for treatment, the operation is carried out under the pressure of 0.2 MPa-0.4 MPa and the temperature of 5-40 ℃, the pH value of the water produced by the membrane module 7 is adjusted back to 7 by an acid metering pump 9, the obtained clear liquid is softened water, the hardness of the softened water is less than or equal to 30ppm, and the concentrated water of the membrane module 7 flows back to the circulating tank 5.

Compared with the traditional water softening process, the high-hardness water softening integrated equipment reduces the floor area of the equipment and increases the precipitation rate of calcium and magnesium ions in hard water; the membrane filtration is added into the equipment, so that the material can be separated in a strong alkaline environment, the effect is obvious and stable, and the effect is better than that of a sedimentation tank, so that the hardness of the treated water is larger, and the application range of the treated softened water is wide; the device is simple and easy, saves manufacturing cost.

Claims

1. The utility model provides a high rigidity water softening integrated equipment, includes inhalant canal (1), its characterized in that: intake passage (1) even has a plurality of agitator tank (2) in proper order, be equipped with on intake passage (1) and add alkali measuring pump (3) and sodium carbonate measuring pump (4), the most terminal hard water entry (51) intercommunication of agitator tank (2) and circulation tank (5), the hard water export (52) of circulation tank (5) are through membrane hard water entry (71) intercommunication of booster pump (6) and membrane module (7), water export (72) are produced to the membrane of membrane module (7) even have clear liquor passageway (8), be equipped with on clear liquor passageway (8) and add acid measuring pump (9).

2. The integrated apparatus for high hardness water softening treatment according to claim 1, wherein: a first valve (11) is arranged on the clarifying liquid channel (8) and close to the membrane water production outlet (72), and an air compressor (10) is arranged on the clarifying liquid channel (8) and between the first valve (11) and the membrane water production outlet (72).

3. The integrated apparatus for high hardness water softening treatment according to claim 1, wherein: and a membrane concentrated water outlet (73) of the membrane component (7) is communicated with a concentrated water inlet (53) of the circulating tank (5).

4. The integrated apparatus for high hardness water softening treatment according to claim 1, wherein: a second valve (12) is arranged between a hard water outlet (52) of the circulating tank (5) and the booster pump (6).

5. The integrated equipment for high hardness water softening treatment according to claim 1, wherein: a first pressure gauge (15) and a third valve (13) are arranged between the booster pump (6) and a membrane hard water inlet (71) of the membrane assembly (7).

6. The integrated equipment for high hardness water softening treatment according to claim 3, wherein: and a second pressure gauge (16) and a fourth valve (14) are arranged between a membrane concentrated water outlet (73) of the membrane component (7) and a concentrated water inlet (53) of the circulating tank (5).

7. The integrated apparatus for high hardness water softening treatment according to claim 1, wherein: the membrane module (7) is a tubular ceramic membrane, and the operating pressure in the membrane module (7) is 0.1-0.2 MPa.

8. The integrated apparatus for high hardness water softening treatment according to claim 1, wherein: the membrane material of the membrane component (7) is one of alumina, titanium oxide or silicon oxide.

9. The integrated equipment for high hardness water softening treatment according to claim 3, wherein: the membrane hard water inlet (71) is positioned at the bottom of the membrane assembly (7), the membrane produced water outlet (72) is positioned at the lower part of the right side of the membrane assembly (7), and the membrane concentrated water outlet (73) is positioned at the top of the membrane assembly (7).