Reverse osmosis concentrated water treating and recycling device

Abstract

The utility model relates to the technical field of concentrated water treatment, and discloses a reverse osmosis concentrated water treatment and recycling device which comprises a first reaction kettle, a conveying pipe is fixedly mounted at the top of the first reaction kettle, a first feeding pipe is fixedly mounted at the top of the first reaction kettle, and a second feeding pipe is fixedly mounted at the top of the second reaction kettle. The right side of the first reaction kettle is communicated with a filter box through a first discharge pipe, and a connecting frame is slidably mounted in the filter box. Concentrated water is conveyed into the first reaction kettle through the conveying pipe, then alkaline substances such as lime and sodium carbonate are added through the first feeding pipe to be mixed with the concentrated water, so that the concentrated water is softened, upper-layer reaction water obtained after precipitation is conveyed into the filtering box through the first discharging pipe, and the upper-layer reaction water is filtered through the filtering box. Residual impurities are filtered through an activated carbon plate, then filtered water is conveyed into the second reaction kettle through a water pump, the PH value is detected, the PH value of water needing to be discharged is stabilized by adding dilute sulphuric acid, and subsequent utilization is facilitated.

Description

Technical Field

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

[0002] The resource utilization of sewage refers to the harmless treatment of sewage to meet specific water quality standards, which is used as recycled water to replace conventional water resources for industrial production, residents' lives, ecological water replenishment, agricultural irrigation, etc., as well as the extraction of other resources and energy from sewage. Reverse osmosis concentrate refers to wastewater containing high concentrations of dissolved substances produced in the reverse osmosis water purification process. The main problem of reverse osmosis concentrate is the high content of calcium and magnesium plasma in its ingredients, which leads to high hardness. The direct discharge of reverse osmosis concentrate will have a serious impact on the environment and endanger human health, so it needs to be treated before it can be discharged.

[0003] Most of the existing reverse osmosis concentrated water treatment methods are direct discharge, which causes environmental pollution and waste of water resources, or the concentrated water is subjected to reverse osmosis again, which can easily lead to blockage of the reverse osmosis membrane and shorten the service life. In addition, there is a lack of pH value regulation of the treated water, which leads to acid-base imbalance in the human body during the reuse of the discharged water. Therefore, a reverse osmosis concentrated water treatment and reuse device is proposed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a reverse osmosis concentrated water treatment and reuse device, which has the advantages of reducing the hardness of the concentrated water by adding alkaline substances such as lime and soda ash into the concentrated water, mixing with the calcium and magnesium components therein, and then precipitating, and adding dilute sulfuric acid to the inside to stabilize the pH value of the water by detecting the pH value of the filtered water, thereby reducing the harm after discharge. It solves the problem that most of the existing reverse osmosis concentrated water treatment methods are direct discharge, thus causing environmental pollution and waste of water resources, or easily causing clogging of the reverse osmosis membrane and shortening the service life by reverse osmosis of the concentrated water again, and lacks pH value regulation of the treated water, resulting in acid-base imbalance to the human body during the reuse of the finally discharged water.

[0006] (II) Technical solution

[0007] The utility model provides a technical solution to the above technical problems as follows: a reverse osmosis concentrated water treatment and reuse device, comprising a first reactor, a conveying pipe is fixedly installed on the top of the first reactor, a first feed pipe is fixedly installed on the top of the first reactor, the right side of the first reactor is connected with a filter box through a first discharge pipe, a connecting frame is slidably installed inside the filter box, two activated carbon plates are fixedly installed inside the connecting frame and are symmetrically distributed on the left and right, the right side of the filter box is connected with a water pump through a pipeline, a second reactor is fixedly connected to the bottom of the water pump, a second feed pipe is fixedly installed on the top of the second reactor, a pH detector with a probe located inside the second reactor is fixedly installed on the top of the second reactor, and a second discharge pipe is fixedly installed on the right side of the second reactor.

[0008] As a preferred technical solution, a third discharge pipe is fixedly installed at the bottom of the first reaction kettle, and the third discharge pipe extends to the interior of the auger conveyor.

[0009] As a preferred technical solution, an air pump is fixedly installed on the top of the first reactor, a purification box is fixedly installed on the top of the first reactor, the air pump is connected with the interior of the first reactor and the interior of the purification box through pipelines, an activated carbon filter element is slidably installed inside the purification box, and an exhaust pipe is fixedly installed on the top of the purification box.

[0010] As a preferred technical solution, two first slide grooves are opened on the front and rear sides of the inner wall of the purification box and are symmetrically distributed on the left and right sides, and the front and rear sides of the activated carbon filter are fixedly installed with first sliders slidably connected to the inside of the first slide grooves.

[0011] As a preferred technical solution, two second slide grooves are provided on both sides of the inner wall of the filter box and are symmetrically distributed front to back, and the outer side of the connecting frame is slidably connected to the inside of the second slide groove.

[0012] As a preferred technical solution, grooves are provided on opposite sides of the connecting frame.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model inputs concentrated water into the first reactor through a delivery pipe, then adds alkaline substances such as lime and soda ash to mix with the concentrated water through a first feed pipe, thereby softening the concentrated water, and delivers the upper layer of reaction water after precipitation into the interior of a filter box through a first discharge pipe, and filters the residual impurities through an activated carbon plate, and then delivers the filtered water into the second reactor through a water pump, and detects the pH value and stabilizes the pH value of the water to be discharged by adding dilute sulfuric acid, so as to facilitate subsequent use.

[0016] 2. The utility model transports the gas generated in the mixing process inside the first reactor to the inside of the purification box through an air pump, and filters the gas through an activated carbon filter element to reduce pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the utility model from another viewing angle;

[0020] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the pH value detector of the utility model and the second reaction kettle;

[0022] Figure 5 This is a schematic diagram of the connection between the air pump of the utility model, the first reaction kettle and the purification box;

[0023] Figure 6 This is a schematic diagram of the internal structure of the purification box of the utility model;

[0024] Figure 7 This is a schematic diagram of the internal structure of the filter box of the utility model.

[0025] In the figure: 1. first reactor; 2. conveying pipe; 3. first feed pipe; 5. first discharge pipe; 6. filter box; 7. connecting frame; 8. activated carbon plate; 9. water pump; 10. second reactor; 11. second feed pipe; 12. pH detector; 13. second discharge pipe; 14. third discharge pipe; 15. auger conveyor; 16. air pump; 17. purification box; 18. activated carbon filter element; 19. exhaust pipe; 20. first chute; 21. first slider; 22. second chute; 23. groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the embodiment, Figure 1-7 A reverse osmosis concentrated water treatment and reuse device is provided. The utility model comprises a first reactor 1, a conveying pipe 2 is fixedly installed on the top of the first reactor 1, a first feeding pipe 3 is fixedly installed on the top of the first reactor 1, the right side of the first reactor 1 is connected with a filter box 6 through a first discharging pipe 5, a connecting frame 7 is slidably installed inside the filter box 6, two activated carbon plates 8 which are symmetrically distributed on the left and right are fixedly installed inside the connecting frame 7, the right side of the filter box 6 is connected with a water pump 9 through a pipeline, a second reactor 10 is fixedly connected to the bottom of the water pump 9, a second feeding pipe 11 is fixedly installed on the top of the second reactor 10, a pH detector 12 with a probe located inside the second reactor 10 is fixedly installed on the top of the second reactor 10, and a second discharging pipe 13 is fixedly installed on the right side of the second reactor 10.

[0028] As a preference of this embodiment, a third discharge pipe 14 is fixedly installed at the bottom of the first reaction kettle 1 , and the third discharge pipe 14 extends to the inside of the auger conveyor 15 .

[0029] When discharging the sediment inside the first reactor 1 , the discharge speed of the sediment is controlled by the auger conveyor 15 , thereby reducing the probability of clogging of the third discharge pipe 14 and facilitating better use and maintenance.

[0030] As a preferred embodiment of the present invention, an air pump 16 is fixedly installed on the top of the first reactor 1, and a purification box 17 is fixedly installed on the top of the first reactor 1. The air pump 16 is connected to the interior of the first reactor 1 and the interior of the purification box 17 through pipelines, respectively. An activated carbon filter element 18 is slidably installed inside the purification box 17, and an exhaust pipe 19 is fixedly installed on the top of the purification box 17.

[0031] The air pump 16 draws the odor of the concentrated water and the odor generated during the mixing process into the interior of the purification box 17, and filters it through the activated carbon filter element 18, so that the air environment in the area where the staff is located is better.

[0032] As a preferred embodiment of the present invention, two first slide grooves 20 symmetrically distributed on the front and rear sides of the inner wall of the purification box 17 are provided, and the front and rear sides of the activated carbon filter element 18 are fixedly installed with first sliders 21 slidably connected to the inside of the first slide grooves 20.

[0033] When replacing the activated carbon filter element 18, the cover plate is removed, and the first slider 21 is pulled upward to drive the activated carbon filter element 18 to rise, so as to facilitate taking it out and replacing it.

[0034] As a preferred embodiment of the present invention, two second slide grooves 22 are provided on both sides of the inner wall of the filter box 6 and are symmetrically distributed front to back, and the outer side of the connecting frame 7 is slidably connected to the inside of the second slide grooves 22 .

[0035] When replacing the activated carbon plate 8, the connecting frame 7 can be pulled upward to remove it.

[0036] As a preference of this embodiment, grooves 23 are provided on opposite sides of the connecting frame 7 .

[0037] When taking out the connecting frame 7 , the connecting frame 7 can be taken out more conveniently through the groove 23 .

[0038] Working principle:

[0039] The concentrated water produced during the reverse osmosis process enters the first reactor 1 through the delivery pipe 2, and the alkaline raw materials such as lime and soda ash are delivered to the first reactor 1 through the first feed pipe 3 for mixing and softening, so as to facilitate subsequent treatment. After the mixing is completed, precipitation is carried out, and then the upper layer of liquid is delivered to the inside of the filter box 6 through the first discharge pipe 5, filtered through the activated carbon plate 8, and the precipitated liquid is further filtered and pumped into the second reactor 10 through the water pump 9. According to the pH value detected by the pH detector 12, the dilute sulfuric acid is then delivered through the second feed pipe 11, so as to adjust the pH value of the liquid to be discharged, so that it is convenient for subsequent use.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reverse osmosis concentrated water treatment and reuse device, comprising a first reaction kettle (1), characterized in that: A conveying pipe (2) is fixedly installed on the top of the first reactor (1), a first feeding pipe (3) is fixedly installed on the top of the first reactor (1), the right side of the first reactor (1) is connected to a filter box (6) through a first discharge pipe (5), a connecting frame (7) is slidably installed inside the filter box (6), two activated carbon plates (8) symmetrically distributed on the left and right are fixedly installed inside the connecting frame (7), the right side of the filter box (6) is connected to a water pump (9) through a pipeline, the bottom of the water pump (9) is fixedly connected to a second reactor (10), a second feeding pipe (11) is fixedly installed on the top of the second reactor (10), a pH detector (12) with a probe located inside the second reactor (10) is fixedly installed on the top of the second reactor (10), and a second discharge pipe (13) is fixedly installed on the right side of the second reactor (10).

2. A reverse osmosis concentrated water treatment and reuse device according to claim 1, characterized in that: A third discharge pipe (14) is fixedly installed at the bottom of the first reaction kettle (1), and the third discharge pipe (14) extends to the interior of the auger conveyor (15).

3. A reverse osmosis concentrated water treatment and reuse device according to claim 1, characterized in that: An air pump (16) is fixedly installed on the top of the first reaction kettle (1), and a purification box (17) is fixedly installed on the top of the first reaction kettle (1). The air pump (16) is connected to the interior of the first reaction kettle (1) and the interior of the purification box (17) through pipelines, respectively. An activated carbon filter element (18) is slidably installed inside the purification box (17), and an exhaust pipe (19) is fixedly installed on the top of the purification box (17).

4. A reverse osmosis concentrated water treatment and reuse device according to claim 3, characterized in that: The inner wall of the purification box (17) is provided with two first slide grooves (20) which are symmetrically distributed on both sides, and the first slide blocks (21) which are slidably connected to the inside of the first slide grooves (20) are fixedly installed on both sides, front and back of the activated carbon filter element (18).

5. The reverse osmosis concentrated water treatment and reuse device according to claim 1, characterized in that: Two second slide grooves (22) are provided on both left and right sides of the inner wall of the filter box (6) and are symmetrically distributed front to back, and the outer side of the connecting frame (7) is slidably connected to the inside of the second slide groove (22).

6. A reverse osmosis concentrated water treatment and reuse device according to claim 1, characterized in that: Opposite sides of the connecting frame (7) are provided with grooves (23).

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