CN217972875U - Gasification concentrated moisture salt separating device - Google Patents

Abstract

The utility model relates to a thick moisture salt device gasifies, the device is at least including softening precipitation unit, nanofiltration unit and dividing the salt unit. The softening and precipitating unit is connected with the salt separating unit through a nanofiltration unit. Wherein, soften the precipitation unit and include water inlet, delivery port, cavity and first baffle at least, be located the vertical upper end of softening the precipitation unit at water inlet and delivery port and with the condition that the check valve is connected, first baffle sets up according to the mode that separates the play water after will intaking and softening the precipitation treatment in the cavity to the vertical upper end of first baffle is equipped with the connecting way that is used for communicateing into water and goes out water. The invention precipitates various insoluble substances in the concentrated water, softens the water, realizes flocculation, and can agglomerate suspended matters, organic matters, colloid and other substances in the concentrated water into larger flocculated alum flocs so as to facilitate the removal of the precipitate, effectively reduce the organic matters, suspended matters and turbidity of the concentrated water, and create good conditions for the stable operation of a nanofiltration unit and a salt separation unit.

Description

Gasification concentrated moisture salt separating device

Technical Field

The utility model relates to a divide salt technical field, especially relate to a thick moisture salt device gasifies.

Background

With the continuous development of modern life and the continuous improvement of industrial level, the sewage treatment is an ecological environment problem which needs to be solved urgently about the annual increase of the sewage amount such as concentrated water, industrial sewage, high salinity drainage and the like generated in the industrial production process. In addition to a large amount of harmful substances that pose a threat to the ecological environment, various substances having utility values, such as sodium chloride, sodium sulfate, etc., are present in many discharged sewage. Directly disposing it and then discharging it is undoubtedly a great waste of resources. How to realize the maximum utilization of resources while treating sewage is a key focus link at present.

Chinese patent CN206858221U discloses a device for recycling water purifier concentrated water, including double-membrane water purifier and concentrated water recycling device, be provided with the inlet tube that is connected with the running water pipeline on the double-membrane water purifier respectively, water purification outlet pipe and concentrated water conveyer pipe, concentrated water recycling device includes the concentrated water collection box, concentrated water booster pump and electronic valve, concentrated water conveyer pipe and concentrated water collection box communicate, be provided with concentrated water utilization pipe and concentrated water circulating pipe on the concentrated water collection box respectively, be provided with control flap on the concentrated water utilization pipe, be provided with the electronic valve on the concentrated water circulating pipe, the tip of concentrated water circulating pipe is provided with the tee bend, the other both ends of tee bend are connected with running water pipeline and inlet tube respectively, be provided with the concentrated water booster pump on the concentrated water circulating pipe between tee bend and the electronic valve, the utility model discloses simple structure, convenient to use has effectively utilized concentrated water, has reduced the cost of water, has practiced thrift the water resource. The defect of this patent lies in, and the double-membrane water purification is used for running water to clear away and can reach better effect, but the flow is undersize, and dense water utilization efficiency is low, does not carry out multiple treatment to it.

Chinese patent CN208869426U discloses a dense water recovery unit of demineralized water, including laminated filter, super filter, one-level reverse osmosis unit, dense water reverse osmosis unit, sewage system, the laminated filter front side is provided with the super filter, laminated filter one side is provided with backwash water collecting pit, the super filter front side is provided with the ultrafiltration product pond, the ultrafiltration product pond front side is provided with one-level reverse osmosis unit, ultrafiltration product pond one side is provided with the RO dense pond, the RO dense pond front end is provided with dense water reverse osmosis unit, the one-level reverse osmosis unit front end is provided with middle pond, RO dense pond one side is provided with sewage system, ultrafiltration pond one side is provided with the wastewater disposal basin, the wastewater disposal pond front side is provided with in the waste water and the system. Has the advantages that: the water production rate of the system is improved, the operation cost is reduced, the water resource is fully utilized, and the pollution to the environment is reduced. The defects are that: the super filter tank has low efficiency, is difficult to effectively remove internal hardness and alkalinity, and can cause damage to the service life of a subsequent reverse osmosis device.

Furthermore, on the one hand, due to the differences in understanding to those skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, but on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the technical proposal of the utility model is to provide a gasification dense moisture salt device. The device at least comprises a softening and precipitating unit, a nanofiltration unit and a salt separation unit, wherein the softening and precipitating unit is connected with the salt separation unit through the nanofiltration unit,

soften the precipitation unit and include water inlet, delivery port, cavity and first baffle at least the water inlet with the delivery port is located soften the vertical upper end of precipitation unit and under the condition of being connected with the check valve, first baffle is in according to the play water after will intaking and softening the precipitation processing carry out the mode setting of separating in the cavity, and the vertical upper end of first baffle is equipped with the connecting way that is used for communicating into water and goes out water.

According to a preferred embodiment, the softening and precipitating unit further includes a second partition plate, a third partition plate, a fourth partition plate, and a fifth partition plate, the second partition plate, the third partition plate, and the fourth partition plate being located in the chamber on the water inlet side partitioned by the first partition plate, and being provided in such a manner as to divide the chamber on the water inlet side into a plurality of inflow flow paths such that the flow path of the inflow water in the chamber on the water inlet side becomes long.

According to a preferred embodiment, the fifth partition plate is located on one side of the chamber on one side of the water inlet, which is close to the first partition plate, a first flow channel formed by the fifth partition plate and the first partition plate is smaller than flow channels formed by the side wall of the chamber close to the water inlet and the combination of the second partition plate, the second partition plate and the third partition plate, and the third partition plate and the fourth partition plate, which are respectively, the fifth partition plate is located at the vertical upper end of the chamber, a flow channel is formed by the connecting channel for communicating the inlet water with the outlet water, and the length of the fifth partition plate is smaller than half of the length of the first partition plate.

According to a preferred embodiment, the fourth partition plate is connected to the vertical upper end of the chamber, a connecting channel is formed in the vertical lower end of the chamber, the third partition plate is connected to the vertical lower end of the chamber and arranged in a mirror-image overturning manner with the fourth partition plate, the second partition plate is connected to the vertical upper end of the chamber and arranged in a mirror-image overturning manner with the third partition plate, and a fifth flow channel formed by the fourth partition plate and the fifth partition plate is larger than a fourth flow channel formed by the fourth partition plate and the third partition plate, is also larger than a third flow channel formed by the third partition plate and the second partition plate, and is larger than a second flow channel formed by the second partition plate and the side wall of the chamber close to the water inlet.

According to a preferred embodiment, the softening and precipitating unit further comprises a plurality of stirrers, which are respectively arranged in the third flow channel, the fourth flow channel and the fifth flow channel and are used for providing stirring reaction to form flocculated alum flocs.

According to a preferred embodiment, the softening and settling unit is further provided with an inclined rod for intercepting sludge settling to the bottom of the chamber, and the bottom of the settled sludge of the chamber is provided with a sludge outflow port for returning a part of the sludge into the second flow channel to collide with the flocculated alum flocs to form larger flocculated alum flocs and for pumping another part of the sludge to the outside through a sludge discharge pump.

According to a preferred embodiment, the concentrated water enters the softening and precipitating unit for softening and precipitation, and enters the nanofiltration unit through a high-strength membrane, activated carbon filtration and a weak acid cation bed in sequence.

According to a preferred embodiment, the nanofiltration unit comprises a nanofiltration booster pump, a filter and a nanofiltration device, and the influent water is lifted by the nanofiltration booster pump to pass through the filter to the nanofiltration device.

According to a preferred embodiment, the salt separation unit comprises an evaporation crystallization module and a centrifuge, the evaporation crystallization module receives the concentrated water after passing through the nanofiltration unit and separates salt through evaporation crystallization, and the centrifuge is used for dehydrating and drying crystallized salt.

The utility model has the advantages of:

(1) The chamber is divided into a water inlet stirring reaction area and a water outlet sludge precipitation area by the first partition plate, the water outlet is further concentrated and filtered by the nanofiltration unit and finally sent to the salt separation unit for evaporation and crystallization treatment, so that the concentrated water is effectively clarified and crystallized, various insoluble substances in the concentrated water are precipitated, the water quality is softened, meanwhile, the flocculation effect is realized, and the suspended substances, organic substances, colloid and other substances in the concentrated water can be coagulated into larger flocculation alumen ustum, so that the precipitation removal is facilitated, the organic substances, suspended substances and turbidity of the concentrated water are effectively reduced, and good conditions are created for the stable operation of the nanofiltration unit and the salt separation unit;

(2) The chamber on the water inlet side is divided into a plurality of flow channels through the second partition plate, the third partition plate, the fourth partition plate and the fifth partition plate so as to prolong the flow distance of the inlet water, so that the inlet water fully reacts with all components added into the inlet water to achieve the optimal precipitation effect, and all the flow channels can intercept all suspended matters in the concentrated water to further increase the filtering effect;

(3) The polyaluminium chloride, the liquid caustic soda and the soda ash which are sequentially added into the second flow channel, the third flow channel and the fourth flow channel are fully combined with water quality particles in the concentrated water, and the polyacrylamide of the fifth flow channel is added to form high-density alum floc, so that hardness, suspended matters, partial organic matters and colloid are removed, the cost is saved by matching multiple medicaments, and the precipitation efficiency is improved;

(4) Inclined tube packing is arranged in a chamber on the water outlet side, so that the sedimentation area and the sedimentation effect are increased, a sludge outflow port is arranged, a part of sludge is fed back into the second flow channel and collides with the flocculated alum flocs to form larger flocculated alum flocs, and meanwhile, the other part of sludge is discharged by a sludge discharge pump and is conveyed to the outside for centralized treatment;

(5) The utility model discloses still filter and weak acid cation bed sends into the dense water after the clarification through high strength membrane, active carbon and receive the filtration unit, and the dense water is promoted by receiving the filtration booster pump and is delivered to the nanofiltration device through the filter and carry out further filtration treatment. The treated concentrated water is sent into a salt separation unit, the evaporation crystallization module receives the concentrated water to separate salt in an evaporation crystallization mode, and the concentrated water is dehydrated and dried by a centrifugal machine, so that zero emission treatment of the concentrated water is realized.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of the softening and precipitation unit of the present invention;

FIG. 2 is a schematic diagram of the concentrate flow path of the softening and settling unit of the present invention;

fig. 3 is a flow chart of the device for gasifying concentrated water and salt in the utility model.

List of reference numerals

1: a softening and precipitating unit; 2: a nanofiltration unit; 3: a salt separation unit; 4: a high strength film; 5: filtering with activated carbon; 6: weak acid sunny bed; 101: a water inlet; 102: a water outlet; 103: a chamber; 104: a first separator; 105: a second separator; 106: a third partition plate; 107: a fourth separator; 108: a fifth partition plate; 109: a stirrer; 110: a diagonal bar; 301: an evaporative crystallization module; 302: a centrifuge; a: polyaluminum chloride; b: liquid caustic soda; c: soda ash; d: polyacrylamide.

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

Example 1

The application relates to a concentrated water and salt gasification device. The device at least comprises a softening and precipitating unit 1, a nanofiltration unit 2 and a salt separating unit 3, wherein the softening and precipitating unit 1 is connected with the salt separating unit 3 through the nanofiltration unit 2, the softening and precipitating unit 1 at least comprises a water inlet 101, a water outlet 102, a chamber 103 and a first partition plate 104, the first partition plate 104 is arranged in a manner of separating inlet water and outlet water after softening and precipitating treatment in the chamber 103 under the condition that the water inlet 101 and the water outlet 102 are positioned at the vertical upper end of the softening and precipitating unit 1 and are connected with a one-way valve, and a connecting channel for communicating the inlet water and the outlet water is arranged at the vertical upper end of the first partition plate 104. The first partition 104 divides the chamber 103 into two parts, one part for the agitation reaction of the influent water and the other part for the precipitation of the sludge. And the connecting channel is arranged at the upper end position, so that the inlet water can be filled with the stirring part, heavy sediments in the inlet water are filtered out simultaneously, and the subsequent flocculation alum floc is effectively prevented from entering the sludge settling part.

According to a preferred embodiment, the softening and precipitating unit 1 further comprises a second partition 105, a third partition 106, a fourth partition 107 and a fifth partition 108, the second partition 105, the third partition 106 and the fourth partition 107 are located in the chamber 103 on the side of the water inlet 101 partitioned by the first partition 104, and are arranged in such a manner as to divide the chamber on the side of the water inlet 101 into a plurality of inlet water flow paths, so that the flow path of the inlet water in the chamber 103 on the side of the water inlet 101 becomes long. The stirring reaction part of the inlet water is divided into a plurality of flow channels by a plurality of clapboards, so that the inlet water flows fully in the flow channels, the stirring reaction effect is enhanced, and insoluble substances, sludge and flocculation alum floc generated by the reaction are intercepted in the flow channels by the continuous up-and-down flow of the inlet water.

According to a preferred embodiment, the fifth partition 108 is located at a side of the chamber 103 close to the first partition 104 on the side of the water inlet 101, a first flow channel formed by the fifth partition 108 and the first partition 104 is smaller than a flow channel formed by the side wall of the chamber 103 close to the water inlet 101 and combined with the second partition 105, the second partition 105 and the third partition 106, and the third partition 106 and the fourth partition 107, respectively, the fifth partition 108 is located at the upper vertical end of the chamber 103, and a flow channel is formed by the connecting channel for communicating the inlet water and the outlet water, and the length of the fifth partition 108 is smaller than half of the length of the first partition 104. The first flow channel formed by the fifth partition 108 and the first partition 104 has a small area to allow a reaction space for the remaining flow channels, and the small area makes it more difficult for insoluble substances, sludge and flocculated alum flocs generated by the reaction to enter the subsequent space.

According to a preferred embodiment, the fourth partition plate 107 is connected to the upper vertical end of the chamber 103 and has a connecting channel at the lower vertical end of the chamber 103, the third partition plate 106 is connected to the lower vertical end of the chamber 103 and is arranged in a mirror-inverted manner with the fourth partition plate 107, the second partition plate 105 is connected to the upper vertical end of the chamber 103 and is arranged in a mirror-inverted manner with the third partition plate 106, a fifth flow channel formed by the fourth partition plate 107 and the fifth partition plate 108 is larger than a fourth flow channel formed by the fourth partition plate 107 and the third partition plate 106, is also larger than a third flow channel formed by the third partition plate 106 and the second partition plate 105, and is larger than a second flow channel formed by the second partition plate 105 and the side wall of the chamber 103 close to the water inlet 101.

According to a preferred embodiment, the softening and precipitating unit 1 further comprises a plurality of stirrers 109, and the stirrers 109 are respectively disposed in the third flow channel, the fourth flow channel and the fifth flow channel and are used for providing stirring reaction to form flocculated alum flocs.

According to a preferred embodiment, different components are added to the second, third, fourth and fifth flow paths, respectively, for the incoming water to settle in the chamber 103 on the side of the water outlet 102, as it passes through the flow paths. Specifically, the polyaluminum chloride is added in the second flow path, and the stirrer 109 is not present in the second flow path because the polyaluminum chloride has poor stability and is corrosive and not suitable for providing the stirrer 109. And adding liquid alkali, namely liquid sodium hydroxide into the third flow channel. Soda ash, i.e. sodium carbonate, is added in the fourth flow channel. And adding polyacrylamide into the fifth flow channel to obtain higher-density flocculated alum flocs.

According to a preferred embodiment, the softening and settling unit 1 is further provided with an inclined rod 110 for intercepting sludge settling to the bottom of the chamber 103, and the bottom of the settled sludge of the chamber 103 is provided with a sludge outflow port for returning a part of the sludge into the second flow channel to collide with the flocculated alum flocs to form larger flocculated alum flocs and for pumping another part of the sludge to the outside via a sludge discharge pump. The softening and precipitating unit 1 is a high-efficiency reaction tank integrating coagulation, flocculation, precipitation and sludge concentration functions, and has the advantages of high precipitation efficiency, high solid content of discharged sludge, strong load change resistance, high recovery rate, medicament conservation and the like. The softening and precipitating unit 1 stays for more than 10min in the coagulation zone, aluminium polychlorid, liquid caustic soda and soda ash are added to be fully combined with water quality particles and the like, polyacrylamide is added to a fourth flow channel to form high-density alum floc, inclined tube filler is arranged in the precipitation zone, the precipitation area and the precipitation effect are increased, and sludge discharge between sludge discharge pumps is controlled. The hardness, suspended matters, partial organic matters and colloid are removed through the process, and the pH value of the effluent is ensured to be 7-9.

According to a preferred embodiment, the concentrated water enters the softening and precipitating unit 1 for softening and precipitation and enters the nanofiltration unit 2 through a high-strength membrane 4, activated carbon filtration 5 and a weak acid cation bed 6 in sequence.

According to a preferred embodiment, nanofiltration unit 2 comprises a nanofiltration booster pump, a filter and a nanofiltration device, whereby the feed water is boosted by the nanofiltration booster pump and passed through the filter to the nanofiltration device.

According to a preferred embodiment, the salt separation unit 3 comprises an evaporation crystallization module 301 and a centrifuge 302, wherein the evaporation crystallization module 301 receives the concentrated water passing through the nanofiltration unit 2 and separates salt by means of evaporation crystallization, and the centrifuge 302 is used for dehydrating and drying the crystallized salt.

Throughout this document, the features referred to as "preferably" are only an optional feature and should not be understood as necessarily requiring that such applicant reserves the right to disclaim or delete the associated preferred feature at any time.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (9)

1. A gasification concentrated water salt separation device is characterized by at least comprising a softening and precipitating unit (1), a nanofiltration unit (2) and a salt separation unit (3), wherein the softening and precipitating unit (1) is connected with the salt separation unit (3) through the nanofiltration unit (2),

soften precipitation unit (1) and include water inlet (101), delivery port (102), cavity (103) and first baffle (104) at least water inlet (101) with delivery port (102) are located soften precipitation unit (1) vertical upper end and with the condition that the check valve is connected under, first baffle (104) are in according to the play water that will intake and soften after the precipitation treatment carry out the mode setting of separating in cavity (103), and the vertical upper end of first baffle (104) is equipped with the connecting way that is used for communicateing into water and goes out water.

2. A concentrated moisture salt vaporizing apparatus according to claim 1 wherein said softening and precipitating unit (1) further comprises a second partition (105), a third partition (106), a fourth partition (107) and a fifth partition (108), said second partition (105), third partition (106) and fourth partition (107) being located in said chamber (103) on the side of said water inlet (101) partitioned by said first partition (104) and being arranged in such a manner as to divide said chamber on the side of said water inlet (101) into a plurality of water inlet flow paths so that the flow path of said inlet water in said chamber (103) on the side of said water inlet (101) becomes long.

3. A concentrated water salt gasification device according to claim 2, characterized in that the fifth baffle (108) is located at the side of the chamber (103) near the inlet (101) near the first baffle (104), the first flow path formed by the fifth baffle (108) and the first baffle (104) is smaller than the flow paths formed by the side wall of the chamber (103) near the inlet (101) and the second baffle (105), the second baffle (105) and the third baffle (106), the third baffle (106) and the fourth baffle (107) respectively,

the fifth partition plate (108) is positioned at the vertical upper end of the cavity (103), a flow channel is formed in the connecting channel for communicating the water inlet and the water outlet, and the length of the fifth partition plate (108) is smaller than half of that of the first partition plate (104).

4. The gasification concentrated moisture salt apparatus according to claim 3, wherein the fourth partition plate (107) is connected to the upper vertical end of the chamber (103) and opens a connecting channel at the lower vertical end of the chamber (103), the third partition plate (106) is connected to the lower vertical end of the chamber (103) and arranged in a mirror-inverted manner with respect to the fourth partition plate (107), the second partition plate (105) is connected to the upper vertical end of the chamber (103) and arranged in a mirror-inverted manner with respect to the third partition plate (106),

the fifth flow channel formed by the fourth partition plate (107) and the fifth partition plate (108) is larger than the fourth flow channel formed by the fourth partition plate (107) and the third partition plate (106), the third flow channel formed by the third partition plate (106) and the second partition plate (105), and the second flow channel formed by the second partition plate (105) and the side wall of the chamber (103) close to the water inlet (101).

5. A concentrated water salt gasification device according to claim 4, characterized in that the softening and precipitating unit (1) further comprises a plurality of agitators (109), wherein the agitators (109) are respectively arranged in the third flow channel, the fourth flow channel and the fifth flow channel and are used for providing agitation reaction to form flocculated alum flocs.

6. A concentrated water salt gasification plant according to claim 5, characterized in that the softening and sedimentation unit (1) is further provided with a diagonal bar (110) for intercepting sludge sedimentation to the bottom of the chamber (103), the bottom of the settled sludge of the chamber (103) being provided with a sludge outflow for returning a part of the sludge into the second flow channel for collision with the flocculated flocs to form larger flocculated flocs and for pumping another part of the sludge to the outside via a sludge discharge pump.

7. A concentrated water and salt gasification device according to claim 6, wherein concentrated water enters the softening and precipitating unit (1) for softening and precipitation and enters the nanofiltration unit (2) through a high-strength membrane (4), activated carbon filtration (5) and a weak acid cation bed (6) in sequence.

8. A gasified concentrated-moisture salt apparatus according to claim 7, wherein the nanofiltration unit (2) comprises a nanofiltration booster pump, a filter and a nanofiltration device, and wherein the influent water is boosted by the nanofiltration booster pump to pass through the filter to the nanofiltration device.

9. The gasification concentrated water salt separating device as claimed in claim 8, wherein the salt separating unit (3) comprises an evaporation and crystallization module (301) and a centrifuge (302), the evaporation and crystallization module (301) receives concentrated water after passing through the nanofiltration unit (2) and separates salt by means of evaporation and crystallization, and the centrifuge (302) is used for dehydrating and drying crystallized salt.

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