Ray nondestructive testing wastewater treatment device based on ion exchange

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a ray nondestructive testing wastewater treatment device based on ion exchange, which comprises a multifunctional valve connected with a lifting pump through a pipeline C, connected with a water production tank through a pipeline G, connected with the top of a resin tank through a pipeline H and connected with the bottom of the resin tank through a pipeline F, the pipeline C is connected with the caustic soda liquid tank through a pipeline E and connected with the raw water tank through a pipeline B, and the pipeline C is connected with a pipeline A; and the raw water tank is connected with the lifting pump through a pipeline D. According to the utility model, silver ions and bromide ions in the wastewater are subjected to nondestructive testing through anion resin adsorption rays, and a black / black red water body is recovered to be transparent, so that the treated wastewater can be reused in production, and zero emission is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field especially, relates to a kind of based on ion exchange's ray nondestructive testing wastewater treatment device. BACKGROUND

[0002] In industrial production and product quality detection process, as a kind of key technology, ray nondestructive testing is widely used in various fields to detect the defects inside workpiece or product, guarantee product quality and safety, wherein, using film to carry out ray nondestructive testing is more common operating mode, in this process, water or solution is needed to wash film in the darkroom processing link after film is developed and fixed, this operation will inevitably produce a large amount of washing wastewater.

[0003] Lack of unified technical standard: in view of the particularity of nondestructive testing industry, the diversity of its working environment, detection object and detection process, lead to wastewater treatment, so far, has not formed a set of comprehensive and complete, applicable to the entire industry's technical standard, this makes different enterprises in the treatment of ray nondestructive testing wastewater, lack of clear guidance basis, processing method and effect are uneven;

[0004] Wastewater treatment technology lags behind: the existing development of treatment technology for such wastewater is slow, when facing a large amount of silver ion and bromide ion in wastewater, traditional treatment technology often difficult to achieve ideal treatment effect. For example, some conventional chemical precipitation method, only to wastewater in part easy to precipitate substance play a role, for silver ion and bromide ion this kind of strong solubility ion, removal rate is extremely low, can not make treated wastewater to reach environmental protection discharge standard, also difficult to realize the effective recycling of resources;

[0005] Equipment performance defects: the existing wastewater treatment equipment in current market, it is difficult to meet the special needs of ray nondestructive testing wastewater treatment. On the one hand, the equipment is poor in processing efficiency, can not efficiently handle a large amount of wastewater, resulting in wastewater backlog, affect the normal progress of detection work. On the other hand, the stability and reliability of equipment are insufficient, prone to failure in long-term operation, need frequent maintenance and replacement of parts, increase the operating cost of enterprise, more critical is that the existing equipment has obvious short board in economic rationality, high purchase cost, large running energy consumption, and the effect of wastewater treatment is not satisfactory, can not provide economic, safe, stable and efficient wastewater treatment solution for enterprise;

[0006] In summary, in order to promote the sustainable development of ray nondestructive testing industry, reduce its negative impact on the environment, it is urgent to develop a new kind of ray nondestructive testing wastewater treatment device with efficient processing capacity, economic rationality and safety and stability, to solve many problems existing in current industry. The utility model discloses a kind of wastewater treatment devices based on ion exchange of ray nondestructive testing.

[0007] The utility model aims at solving the above-mentioned defects, provide a kind of wastewater treatment device based on ion exchange of ray nondestructive testing.

[0008] In order to overcome the defects in the background art, the utility model solves the technical problems by adopting the following technical scheme: a wastewater treatment device based on ion exchange of ray nondestructive testing, comprising a multifunctional valve, which is connected to a booster pump through a pipeline C, connected to a water production tank through a pipeline G, connected to the top of a resin tank through a pipeline H, connected to the bottom of the resin tank through a pipeline F, connected to a liquid caustic tank through a pipeline E, and connected to a raw water tank through a pipeline B. A pipeline A is connected to the pipeline C. The raw water tank is connected to the booster pump through a pipeline D.

[0009] Further improvements include that a liquid level gauge is arranged in the raw water tank, and the liquid level gauge is electrically connected to the booster pump.

[0010] Further improvements include that a pretreatment security filter is arranged in series on the pipeline C.

[0011] Further improvements include that the pretreatment security filter uses a 5 μm gradient density PP cotton filter element.

[0012] Further improvements include that a post-treatment security filter is arranged in series on the pipeline G.

[0013] The utility model has the advantages that: the design can absorb silver ions and bromide ions in wastewater of ray nondestructive testing by anion resin, and restore the black / black red water body to transparency. In this way, the treated wastewater can be reused in production, achieving zero discharge. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described below in combination with the drawings and examples.

[0015] Figure 1 is the front view of the utility model;

[0016] In the figure, 1 is a liquid level gauge, 2 is a pipeline A, 3 is a pipeline B, 4 is a pipeline C, 5 is a pretreatment security filter, 6 is a pipeline D, 7 is a booster pump, 8 is a pipeline E, 9 is a multifunctional valve, 10 is a pipeline F, 11 is a resin tank, 12 is a liquid caustic tank, 13 is a post-treatment security filter, 14 is a pipeline G, 15 is a water production tank, 16 is a raw water tank, and 17 is a pipeline H. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0018] According to Figure 1 As shown in the figure, a kind of ion exchange-based radiographic nondestructive testing wastewater treatment device, including multifunctional valve 9, it is connected with lifting pump 7 by pipeline C4, it is connected with water production tank 15 by pipeline G14, for transporting ion exchange after reaching the water production of standard, to drain into water production tank 15, it is connected with resin tank 11 top for forward water and reverse drainage by pipeline H17, it is connected with resin tank 11 bottom for forward drainage and backwash water by pipeline F10, it is connected with liquid caustic soda tank 12 for resin regeneration stage liquid caustic soda injection by pipeline E8, it is connected with raw water tank 16 by pipeline B3 to realize waste liquid circulation and recovery, pipeline C4 is connected with pipeline A2, for the resin tank 11 in injection tap water is carried out positive and negative washing, wherein resin tank 11 uses high capacity ion exchange resin, working exchange capacity ≥1000mmol / L, can efficiently adsorb Br- and Ag+ ion, meet long-term continuous operation demand;

[0019] Raw water tank 16, it is connected with lifting pump 7 by pipeline D6, utilize lifting pump 7 to transport wastewater containing bromide ion and silver ion into resin tank 11.

[0020] In the embodiment, liquid level gauge 1 is arranged in raw water tank 16, and the liquid level gauge 1 is electrically connected with the lifting pump 7, for monitoring liquid level height in real time and outputting 4-20mA analog signal to PLC control system, and converting information into electric signal or digital signal for control system identification. Through the cooperative work of liquid level gauge 1 and lifting pump 7 control system, the function that lifting pump 7 automatically operates according to liquid level change is realized, the operation efficiency and reliability of the system are improved, manual intervention is reduced, and the safe and stable operation of the system is ensured.

[0021] In the embodiment, pretreatment security filter 5 is arranged in series on pipeline C4, and the pretreatment security filter 5 adopts 5 μm gradient density PP cotton filter element, and the compression strength is greater than or equal to 0.6 MPa, the impurities and particles in the liquid are filtered through physical action, the water quality is improved, and the impurities are effectively removed after the wastewater passes through the pretreatment security filter 5.

[0022] In the embodiment, the pipeline G14 is provided with a post-treatment security filter 13 in series, the post-treatment security filter 13 is configured with a 20 μm stainless steel sintered filter screen, can intercept broken resin and particles with a particle size of ≥20 μm, and avoids secondary pollution of the produced water.

[0023] Working principle: during the positive washing process, tap water is input into the pipeline C4, the multifunctional valve 9, the pipeline H17 and the resin tank 11 in sequence through the pipeline A2, at the same time, the liquid alkali in the liquid alkali tank 12 is input into the resin tank 11 through the pipeline E8, the multifunctional valve 9 and the pipeline H17, the tap water and the 4% concentration liquid alkali (NaOH) are mixed at a volume ratio of 5:1, and are injected into the resin tank 11 through the pipeline H17 at a linear speed of 5 m / h, the transformation time is ≥30 min, the CL-type resin is completely transformed into the OH-type (the transformation efficiency is ≥99%), and the discharge liquid of the resin tank 11 is input into the raw water tank 16 in sequence through the pipeline F10, the multifunctional valve 9 and the pipeline B3, and the pH value is monitored in real time, and when the pH value is greater than 10, the flow channel switching is triggered;

[0024] During the backwashing process, the multifunctional valve 9 is switched to the reverse flow channel, and then the tap water is input into the resin tank 11 through the pipeline F10 to reversely wash the resin bed, and then the backwashing water is input into the multifunctional valve 9 through the pipeline H17, the backwashing intensity is controlled to be 8-12 L / (m²·s), the washing is continuously carried out until the pH value of the outlet water is less than 8, the residual NaOH is removed, the transformation period is set to be 180 days, and the PLC timer parameter is updated synchronously;

[0025] During the wastewater treatment process, the wastewater containing Br- (≤200 mg / L) and Ag+ (≤50 mg / L) is input into the raw water tank 16, the liquid level meter 1 triggers the starting of the lifting pump 7, the wastewater is removed by the pretreatment security filter 5, and then is input into the resin tank 11 through the pipeline H17 at a flow rate of 0.35 m³ / h, the OH-type resin selectively adsorbs Ag+ (generates AgOH precipitate) and Br- (forms Br-resin complex), adsorbs silver ions and bromine ions in the wastewater, the treated wastewater passes through the pipeline F10, the multifunctional valve 9 and the pipeline G14, the produced water (Ag+ is less than 0.16 mg / L, and Br- is less than 0.5 mg / L) after treatment is filtered through the post-treatment security filter 13 and then is input into the produced water tank 15, and the discharge standard is reached.

[0026] The above merely describes a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field according to the technical solution and the application concept of the present application within the technical range disclosed by the present application can make equivalent replacement or change, and all should be covered in the protection scope of the present application.

Claims

1. A wastewater treatment device for X-ray non-destructive testing based on ion exchange, characterized in that, It includes a multi-functional valve (9), which is connected to the booster pump (7) via pipe C (4), connected to the product water tank (15) via pipe G (14), connected to the top of the resin tank (11) via pipe H (17), connected to the bottom of the resin tank (11) via pipe F (10), connected to the liquid alkali tank (12) via pipe E (8), and connected to the raw water tank (16) via pipe B (3). Pipe A (2) is connected to the pipe C (4); the raw water tank (16) is connected to the booster pump (7) via pipe D (6).

2. The wastewater treatment device for X-ray non-destructive testing based on ion exchange as described in claim 1, characterized in that: The raw water tank (16) is equipped with a level gauge (1), and the level gauge (1) is electrically connected to the booster pump (7).

3. The wastewater treatment device for X-ray nondestructive testing based on ion exchange as described in claim 1, characterized in that: A pretreatment security filter (5) is connected in series on the pipeline C (4).

4. The wastewater treatment device for X-ray nondestructive testing based on ion exchange as described in claim 3, characterized in that: The pretreatment security filter (5) uses a 5μm gradient density PP cotton filter element.

5. The wastewater treatment device for X-ray non-destructive testing based on ion exchange as described in claim 1, characterized in that: A post-treatment security filter (13) is connected in series on the pipeline G (14).

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