Reverse osmosis concentrated water treatment and recovery device

Abstract

The utility model is suitable for the technical field of concentrated water treatment and recovery, and provides a reverse osmosis concentrated water treatment and recovery device which comprises a fixed frame, the evaporation, concentration and crystallization box is fixed at the top of the fixed frame through a bolt; the electromagnetic valve is fixed at the central position of the top of the evaporation, concentration and crystallization box through a bolt; the pretreatment filter box is fixed at the top of the electromagnetic valve through a bolt; the partition plate is welded on the inner side wall of the evaporation, concentration and crystallization box; the first electric push rod is fixed on the outer side wall of one side of the evaporation, concentration and crystallization box through a bolt and is close to the upper part of the partition plate; the crystallization pushing table is fixed at the output end of the first electric push rod; suspended matters, colloidal matters and the like in the concentrated water can be removed through pretreatment and filtration, crystallizable solutes in the reverse osmosis concentrated water are removed through heating, concentration and crystallization, the reverse osmosis concentrated water in circulating water is effectively treated, and environment-friendly circulating water treatment is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of concentrated water treatment and recovery, in particular to a reverse osmosis concentrated water treatment and recovery device. Background Art

[0002] Reverse osmosis brine refers to the concentrated solution removed during the reverse osmosis membrane treatment process. It generally contains high concentrations of insoluble solids, highly soluble and toxic substances. The goal of treating reverse osmosis brine is to reduce environmental impact, recover energy and materials, and reduce treatment costs. Before treating reverse osmosis brine, pretreatment is a very important step. Pretreatment can include physical, chemical and biological treatments to remove suspended matter, colloids, substances and microorganisms that cause water quality deterioration in the brine. If the solutes in the brine can crystallize, the reverse osmosis brine can be further treated by crystallization. Through solvent evaporation or cooling, the solutes in the reverse osmosis brine can be crystallized into solids, thereby achieving concentration and recovery. Properly treated reverse osmosis brine can be recycled in other processes. For example, reverse osmosis brine can be used as make-up water in the cooling water circulation system to reduce the demand for fresh water resources. This method not only saves water resources, but also reduces treatment and discharge costs.

[0003] Therefore, a reverse osmosis concentrated water treatment and recovery device is proposed. Utility Model Content

[0004] The utility model provides a reverse osmosis concentrated water treatment and recovery device, aiming to solve the above problems.

[0005] The utility model is implemented as follows: a reverse osmosis concentrated water treatment and recovery device comprises: a fixing frame; an evaporation and concentration crystallization box fixed to the top of the fixing frame by bolts; an electromagnetic valve fixed to the center position of the top of the evaporation and concentration crystallization box by bolts; a pretreatment filter box fixed to the top of the electromagnetic valve by bolts; a partition welded to the inner wall of the evaporation and concentration crystallization box; a first electric push rod fixed to the outer wall of one side of the evaporation and concentration crystallization box near the position above the partition by bolts; a crystallization pushing platform fixed to the output end of the first electric push rod; a plate valve fixed to the outer wall of the other side of the evaporation and concentration crystallization box near the position of one side of the crystallization pushing platform by bolts; a plate valve welded to the outer wall of the evaporation and concentration crystallization box adjacent to the first electric push rod The evaporation discharge pipe and the concentrated liquid discharge valve on the evaporation discharge pipe are located above the concentrated liquid discharge valve; a second electric push rod fixed to the bottom of the evaporation concentration crystallization box by bolts; a heating platform fixed to the output end of the second electric push rod; a concentrated water inlet pipe embedded in and fixed to the top of the pretreatment filter box; and a horizontal plate welded to the inner wall of the pretreatment filter box; a filter plate welded to the top of the horizontal plate; a third electric push rod fixed to the outer wall of one side of the pretreatment filter box by bolts; a filter cover fixed to the output end of the third electric push rod; a filter cover welded to the outer wall of the other side of the pretreatment filter box; a fourth electric push rod fixed to the bottom of the filter cover by bolts; and a filter push plate fixed to the output end of the fourth electric push rod.

[0006] Preferably, a micro filter hole is opened on the top of the partition, and an electric heating wire is provided inside the heating platform.

[0007] Preferably, the bottom of the crystallization pushing platform and the top of the partition are in close contact and fit.

[0008] Preferably, a through groove matching the crystallization pushing platform is provided on one side inner wall of the evaporation concentration crystallization box at a position close to the plate valve.

[0009] Preferably, the filter plate is in tight contact with an outer wall of one side of the filter cover.

[0010] Preferably, a through groove for the filter cover to pass through is provided on one side outer wall of the pre-treatment filter box at a position close to the filter cover.

[0011] Preferably, the cross section of the filter collecting cover is an L-shaped structure, and the outer side wall of the filter collecting cover and the inner side wall of the filter blocking cover match and fit together.

[0012] Preferably, an inclined surface is provided on the top of the filter push plate.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] Pre-treatment filtration can remove suspended matter, colloids, etc. in concentrated water, and heating, concentration and crystallization can be used to remove crystallizable solutes in reverse osmosis concentrated water, effectively treating reverse osmosis concentrated water in circulating water and realizing environmentally friendly circulating water treatment. The lifting of the heating table can make the reverse osmosis concentrated water in the evaporation, concentration and crystallization box rise and fall, and then make the crystals emerge from the reverse osmosis concentrated water and push them out for easy discharge. By pushing the filter plate, suspended matter, colloids, etc. are pushed upward out of the pre-treatment filter box, so as to clean the filter plate and ensure the filtration efficiency of the filter plate without manual cleaning of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the fixing frame of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the pre-treatment filter box of the utility model;

[0018] Figure 4 This is a schematic diagram of the external structure of the pre-treatment filter box of the utility model;

[0019] Figure 5 It is a schematic diagram of the heating table structure of the present utility model.

[0020] In the figure: 1. Fixed frame; 2. Evaporation concentration crystallization box; 3. Solenoid valve; 4. Pretreatment filter box; 5. Partition; 6. First electric push rod; 7. Crystallization pushing platform; 8. Plate valve; 9. Evaporation discharge pipe; 10. Concentrate discharge valve; 11. Second electric push rod; 12. Heating table; 13. Concentrated water inlet pipe; 14. Horizontal plate; 15. Filter plate; 16. Third electric push rod; 17. Filter cover; 18. Filter cover; 19. Fourth electric push rod; 20. Filter push plate. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The present invention provides a reverse osmosis concentrated water treatment and recovery device. Figure 1-5 As shown, it includes a fixing frame 1, the top of the fixing frame 1 is fixedly connected to an evaporation and concentration crystallization box 2 by bolts, the top center position of the evaporation and concentration crystallization box 2 is fixedly connected to a solenoid valve 3 by bolts, the top of the solenoid valve 3 is fixedly connected to a pretreatment filter box 4 by bolts, a partition 5 is welded on the inner wall of one side of the evaporation and concentration crystallization box 2, and a small filter hole is opened on the top of the partition 5. A first electric push rod 6 is fixedly connected to the upper position of the partition 5 on the outer wall of one side of the evaporation and concentration crystallization box 2 by bolts, the first electric push rod 6 is fixedly connected to a crystallization pushing platform 7 through the output end of one side thereof, a plate valve 8 is fixedly connected to the horizontal side position of the crystallization pushing platform 7 on the outer wall of the other side of the evaporation and concentration crystallization box 2 by bolts, an evaporation discharge pipe 9 and a concentrated liquid discharge valve 10 are fixedly connected on the outer wall of the evaporation and concentration crystallization box 2 adjacent to the first electric push rod 6, and the evaporation discharge pipe 9 is located at the concentrated liquid discharge valve 10 Above the evaporation and concentration crystallization box 2, the bottom of the evaporation and concentration crystallization box 2 is fixedly connected with a second electric push rod 11 by bolts, and the second electric push rod 11 is fixedly connected to a heating platform 12 through an output end on one side thereof. An electric heating wire is provided inside the heating platform 12, and a concentrated water inlet pipe 13 is embedded and fixed on the top of the pretreatment filter box 4, and a horizontal plate 14 is welded on the inner wall of one side of the pretreatment filter box 4, and a filter plate 15 is vertically welded on the top of the horizontal plate 14. A third electric push rod 16 is fixedly connected to the outer wall of one side of the pretreatment filter box 4 by bolts, and the third electric push rod 16 is fixedly connected to a filter cover 17 through the output end on one side thereof. A filter cover 18 is fixedly connected to the outer wall of the other side of the pretreatment filter box 4 by bolts, and the bottom of the filter cover 18 is fixedly connected to a fourth electric push rod 19 by bolts. The fourth electric push rod 19 is fixedly connected to a filter push plate 20 through the output end on one side, and the top of the filter push plate 20 is provided with an inclined surface.

[0024] It should be noted that, since the crystals in the existing reverse osmosis concentrated water evaporation, concentration and crystallization process are not easy to discharge, and the filter materials accumulated on the filter screen during the pretreatment process need to be manually cleaned regularly during the pretreatment process, the operation is cumbersome. This embodiment can remove suspended matter, colloids, etc. in the concentrated water through pretreatment filtration, and use heating, concentration and crystallization to remove crystallizable solutes in the reverse osmosis concentrated water, effectively treat the reverse osmosis concentrated water in the circulating water, and realize environmentally friendly circulating water treatment. The reverse osmosis concentrated water in the evaporation, concentration and crystallization box 2 can be raised and lowered by the heating table 12, and then the crystals are exposed from the reverse osmosis concentrated water and pushed out for easy discharge. The suspended matter, colloids, etc. are pushed upward out of the pretreatment filter box 4 by pushing the filter plate 20, so that the filter plate 15 is cleaned, the filtration efficiency of the filter plate 15 is ensured, and there is no need for manual cleaning of the filter plate 15.

[0025] The filtration unit 14 is a filter unit 16, which is a filter unit 17, and the filter unit 17 is a filter unit 18. The filter unit 16 is a filter unit 18, which is a filter unit 18, and the filter unit 18 is a filter unit 18. The filter unit 16 is a filter unit 18, which is a filter unit 18, and the filter unit 18 is a filter unit 18. The filter unit 16 is a filter unit 18, which is a filter unit 18, and the filter unit 18 is a filter unit 18. The filter unit 18 is a filter unit 18, which is a filter unit 18, and the filter unit 18 is a filter unit 18. The treated and filtered reverse osmosis concentrated water passes through the solenoid valve 3 and enters the evaporation, concentration and crystallization box 2. The electric heating wire in the heating table 12 is energized to generate heat to heat the reverse osmosis concentrated water. By adding different solvents, the compounds in the reverse osmosis concentrated water are crystallized at different temperature conditions. When a compound in the heated reverse osmosis concentrated water crystallizes, the second electric push rod 11 drives the heating table 12 downward through the output end on one side thereof. The reverse osmosis concentrated water on the heating table 12 moves downward synchronously after losing its support, and the reverse osmosis concentrated water is separated from the partition 5. At this time, the crystals remain on the partition 5. The first electric push rod 6 is controlled to drive the crystallization pushing table 7 to move through the output end on one side thereof, open the plate valve 8, and the crystallization pushing table 7 pushes the crystals on the partition 5 out of the evaporation, concentration and crystallization box 2. After the crystals are pushed out, the plate valve 8 is closed, the heating table 12 is reset, and the reverse osmosis concentrated water is pushed to the top of the partition 5 again, and then the subsequent crystallization operation continues.

[0026] In a further preferred embodiment of the present invention, Figure 2As shown, the bottom of the crystallization pushing platform 7 and the top of the partition plate 5 are in close contact and fit, and the filter plate 15 and the outer wall of one side of the filter cover 17 are in close contact and fit.

[0027] In this embodiment, the close contact can ensure that the crystallization pushing platform 7 can fully push away the crystals on the top of the partition 5, and ensure that the filter cover 17 can fully push away the filtered material on the outer wall of the filter plate 15.

[0028] In a further preferred embodiment of the present invention, Figure 2 and Figure 4 As shown, a through groove matching the crystallization pushing platform 7 is opened on one side inner wall of the evaporation concentration crystallization box 2 near the plate valve 8, and a through groove for the filter cover 17 to pass through is opened on one side outer wall of the pretreatment filter box 4 near the filter cover 18.

[0029] In this embodiment, the setting of the through groove can enable the crystallization pushing platform 7 to push the crystals out of the evaporation concentration crystallization box 2 and discharge them from the plate valve 8. The setting of the through groove can enable the filter cover 17 to push the filtered material out of the pretreatment filter box 4 to the inner side of the filter cover 18.

[0030] In a further preferred embodiment of the present invention, Figure 3 As shown, the cross section of the filter collecting cover 17 is an L-shaped structure, and the outer side wall of the filter collecting cover 17 and the inner side wall of the filter blocking cover 18 match and fit together.

[0031] In this embodiment, the L-shaped filter collecting cover 17 can prevent the filtered material from being separated when pushing the material, and the filter blocking cover 18 can enable the filtered material to be pushed upward.

[0032] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0033] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0034] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A reverse osmosis concentrated water treatment and recovery device, characterized in that: include: Fixed frame (1); an evaporation concentration crystallization box (2) fixed to the top of the fixing frame (1) by bolts; A solenoid valve (3) fixed to the center of the top of the evaporation, concentration and crystallization box (2) by bolts; a pre-treatment filter box (4) fixed to the top of the solenoid valve (3) by bolts; A partition (5) welded to the inner wall of the evaporation concentration crystallization box (2); A first electric push rod (6) is fixed to an outer wall of one side of the evaporation concentration crystallization box (2) at a position above the partition (5) by means of bolts; a crystal pushing platform (7) fixed to the output end of the first electric push rod (6); A plate valve (8) is fixed to the outer wall of the other side of the evaporation concentration crystallization box (2) at a position close to the crystallization pushing platform (7) by bolts; an evaporation discharge pipe (9) and a concentrated liquid discharge valve (10) welded to an outer wall of the evaporation concentration crystallization box (2) adjacent to the first electric push rod (6), wherein the evaporation discharge pipe (9) is located above the concentrated liquid discharge valve (10); a second electric push rod (11) fixed to the bottom of the evaporation, concentration and crystallization box (2) by means of bolts; a heating platform (12) fixed to the output end of the second electric push rod (11); A concentrated water inlet pipe (13) is embedded and fixed on the top of the pre-treatment filter box (4); and a horizontal plate (14) welded to the inner side wall of the pre-treatment filter box (4); a filter plate (15) welded to the top of the horizontal plate (14); a third electric push rod (16) fixed to an outer wall of one side of the pre-treatment filter box (4) by means of bolts; a filter cover (17) fixed to the output end of the third electric push rod (16); A filter cover (18) welded to the outer wall of the other side of the pre-treatment filter box (4); a fourth electric push rod (19) fixed to the bottom of the filter cover (18) by bolts; A filter push plate (20) is fixed to the output end of the fourth electric push rod (19).

2. A reverse osmosis concentrated water treatment and recovery device according to claim 1, characterized in that: The top of the partition (5) is provided with tiny filter holes, and the interior of the heating platform (12) is provided with an electric heating wire.

3. A reverse osmosis concentrated water treatment and recovery device according to claim 1, characterized in that: The bottom of the crystallization pushing platform (7) and the top of the partition (5) are in close contact and fit.

4. A reverse osmosis concentrated water treatment and recovery device according to claim 1, characterized in that: A through groove matching the crystallization pushing platform (7) is provided on one side inner wall of the evaporation concentration crystallization box (2) at a position close to the plate valve (8).

5. The reverse osmosis concentrated water treatment and recovery device according to claim 1, characterized in that: The filter plate (15) and one side outer wall of the filter cover (17) are in close contact and fit.

6. The reverse osmosis concentrated water treatment and recovery device according to claim 1, characterized in that: A through slot for the filter cover (17) to pass through is provided on one side outer wall of the pre-treatment filter box (4) at a position close to the filter cover (18).

7. The reverse osmosis concentrated water treatment and recovery device according to claim 1, characterized in that: The cross section of the filter collecting cover (17) is an L-shaped structure, and the outer side wall of the filter collecting cover (17) and the inner side wall of the filter blocking cover (18) match and fit together.

8. The reverse osmosis concentrated water treatment and recovery device according to claim 1, characterized in that: The top of the filter push plate (20) is provided with an inclined surface.

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