Resin regeneration device with good stability

Abstract

The utility model belongs to the technical field of resin regeneration, particularly relates to a resin regeneration device with good stability, and provides the following scheme that the resin regeneration device comprises a regeneration solution tank for preparing a solution, the regeneration solution tank is connected with a buffer arranged at a high position through a pipeline, and the solution in the regeneration solution tank can be conveyed into the buffer through a metering pump; the lower part of the buffer is communicated with at least one group of ion exchange columns through a pipeline; and each group of ion exchange columns is provided with a valve for regulating pressure and a flow meter for detecting the flow velocity. According to the device disclosed by the utility model, the resin regeneration process can be fully automatically operated, the distribution of regeneration liquid can be controlled to be constant, the constant-speed regeneration of the resin is further realized, the consumption of the regeneration liquid is low, and regeneration wastewater can be treated and discharged on site after being treated by the wastewater solution tank.

Description

Technical Field

[0001] The utility model relates to the technical field of resin regeneration, in particular to a resin regeneration device with good stability. Background Art

[0002] An example of an exchange agent commonly used in the water treatment industry is ion exchange resin. After the ion exchange resin fails, it must be regenerated to restore its exchange capacity. Resin regeneration is a more important link in the ion exchange water treatment process. The quality of the regeneration effect not only has a direct impact on the working exchange capacity and the effluent water quality, but also determines the economic efficiency of the operation to a large extent. At present, the cation resin used in the hydrogen conductivity meter of the chemical steam water sampling system has an operating time of about one week. The resin gradually fails, and the effluent water quality deteriorates, and the resin must be regenerated;

[0003] At present, resin regeneration adopts the traditional in vitro static immersion regeneration method, which does not distribute the regeneration liquid evenly, resulting in poor regeneration effect, and requires the use of more regeneration liquid, which is not conducive to large-scale resin regeneration work. Utility Model Content

[0004] The purpose of the utility model is to provide a resin regeneration device with good stability in view of the defects of the prior art, so as to solve the problems raised in the above background technology.

[0005] A resin regeneration device with good stability comprises a regeneration solution tank for preparing a solution, wherein the regeneration solution tank is connected to a buffer arranged at a high position through a pipeline, and the solution in the regeneration solution tank can be transported to the buffer through a metering pump, and at least one group of ion exchange columns is connected to the buffer through a pipeline below, and each group of ion exchange columns is equipped with a valve for pressure regulation and a flow meter for detecting flow rate, and the ion exchange columns are also equipped with a wastewater solution tank for collecting and treating waste liquid.

[0006] By adopting the above technical solution, the resin regeneration process can be fully automatic, the distribution of regeneration liquid can be constant, the uniform regeneration effect is good, and the consumption of regeneration liquid is small.

[0007] The buffer is also connected to a water outlet box for supplying water through a pipeline, and the water outlet box is also equipped with a group of metering pumps for conveying the water in the water outlet box to the buffer.

[0008] By adopting the technical solution, the device can be easily flushed.

[0009] The regeneration solution tank and the wastewater solution tank are both equipped with a stirrer.

[0010] By adopting the above technical solution, it is convenient to configure the regeneration solution and quickly process the waste liquid solution to meet the emission standards.

[0011] Each group of ion exchange columns is equipped with two valves, which are respectively distributed at the inlet section and the outlet section of the valve.

[0012] The above technical solution is used to control the flow rate of resin flushing.

[0013] The beneficial effects of the resin regeneration device with good stability of the utility model are:

[0014] The device as a whole can make the resin regeneration process fully automatic, and at the same time can control the constant distribution of the regeneration liquid, thereby realizing uniform regeneration of the resin with low consumption of regeneration liquid. The regeneration wastewater can be treated and discharged on-site after being treated in the wastewater solution tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the resin regeneration device with good stability proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the resin regeneration process of the resin regeneration device with good stability proposed by the utility model.

[0017] In the figure: 1. frame; 2. regeneration solution tank; 3. ion exchange column; 4. valve; 5. flow meter; 6. agitator; 7. water outlet tank; 8. buffer; 9. wastewater solution tank; 10. metering pump. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] Reference Figure 1-2 A resin regeneration device with good stability includes a regeneration solution tank 2 for configuring a solution, the regeneration solution tank 2 is connected to a buffer 8 arranged at a high position through a pipeline, the solution in the regeneration solution tank 2 can be transported to the buffer 8 through a metering pump 10, at least one group of ion exchange columns 3 is connected to the buffer 8 through a pipeline below, each group of ion exchange columns 3 is equipped with a valve 4 for pressure regulation and a flow meter 5 for detecting flow rate, and the ion exchange columns 3 are also equipped with a wastewater solution tank 9 for collecting and treating waste liquid; so as to collect regeneration wastewater and discharge it after treatment, and a frame 1 is arranged at the bottom of the device to play a supporting role.

[0020] About the absorption of resin

[0021] 1. Put the resin to be regenerated into a plastic container and add an appropriate amount of deionized water to dilute it;

[0022] 2. Inject deionized water from the bottom of the ion exchange column 3 to a height of about two-thirds of the height of the ion exchange column 3;

[0023] 3. Open the resin suction valve at the upper end of the ion exchange column 3, connect a hard plastic hose, and place the other end of the plastic hose into a plastic container containing the recycled resin;

[0024] 4. Open the right discharge valve of ion exchange column 3, the water inlet valve and exhaust valve of the water ejector, close the total backwash discharge valve, and finally open the total water inlet valve (pressure is controlled at about 0.2-0.3Mpa) to suck in the resin (if the pressure cannot be reached, first inject deionized water into the acid dosage box, and then start the regeneration pump);

[0025] About the configuration of regeneration fluid

[0026] 1. Acid preparation (taking THYJ-2501-2 as an example):

[0027] (1) Preparation of 5% hydrochloric acid solution (100 liters): Add 13 kg of concentrated hydrochloric acid (31%) into the acid tank, add water while adding acid, and dilute to a full tank.

[0028] About Resin Regeneration

[0029] 1. Add acid to the cation resin: Turn on the metering pump 10 at the regeneration solution tank 2, and pump the acid solution into the ion exchange column 3 from the top of the ion exchange column 3 through the buffer 8 at a flow rate of 3-5m / H. The regeneration solution feeding time meets the design requirements.

[0030] The resin is dynamically regenerated in the ion exchange column 3 of the device, and the effect is stable; the resin filling does not need to open the ion exchange column 3, and the resin can be sucked in by opening the resin suction valve at the upper end of the ion exchange column 3; the resin discharge does not need to open the ion exchange column 3, and can be completed through the resin discharge valve at the lower end of the ion exchange column 3.

[0031] The device frame 1 adopts a stainless steel bracket, the ion exchange column 3 adopts PVC (high transparency, easy to observe the condition of the resin), the resin introduction system adopts PVC or stainless steel, the regeneration solution tank 2 adopts PE, and the pipeline and two metering pumps 10 adopt PVC or 304 stainless steel corrosion-resistant materials.

[0032] The main control parts are corrosion-resistant isolation valves, corrosion-resistant pumps, etc.

[0033] The device has the characteristics of simple operation, short regeneration time, low acid consumption, low water consumption, energy saving and environmental protection.

[0034] The device can be started with one button on the touch screen, and no manual supervision is required throughout the process. It is safe and reliable to operate. While reducing the labor intensity of workers, it also guarantees the resin regeneration degree and the accuracy of the online chemical water vapor analysis conductivity measurement to the greatest extent.

[0035] Before the resin is treated, a set of metering pumps 10 placed at the water tank 7 is turned on to extract pure water from the water tank 7 to rinse the resin and remove impurities in the resin;

[0036] The buffer 8 is also connected to the water outlet tank 7 through a pipeline. The water outlet tank 7 is also equipped with a set of metering pumps 10 for delivering water in the water outlet tank 7 to the buffer 8. A certain amount of regeneration stock liquid is added in proportion to the existing water volume in the rack 1 to prepare a suitable regeneration liquid. The metering pump 10 is used to deliver the water to the buffer 8. The top of the buffer 8 is provided with an exhaust overflow port, and the overflow pipe section is provided with a flow switch to determine whether the regeneration liquid is sufficient;

[0037] The metering pump 10 uses frequency conversion to adjust the flow rate to maintain a stable regeneration flow rate, and then uses the high-level gravity self-flow of the buffer 8 to distribute the regeneration liquid to form a stable regeneration flow, which slowly passes through the ion exchange column 3. The solution inside the ion exchange column 3 will undergo an ion replacement reaction with the resin, thereby achieving resin regeneration. The wastewater after the replacement reaction in the ion exchange column 3 flows to the wastewater solution tank 9 for collection, and the wastewater can be discharged after being treated.

[0038] When the regeneration liquid inlet time meets the requirement, stop the metering pump 10 at the regeneration solution tank 2, start a group of metering pumps 10 at the outlet water tank 7, extract the water in the water tank 7 to rinse the resin, and remove the residual acid solution until the resin regeneration is qualified;

[0039] It should be noted that before and after the resin regeneration work, the water in the water tank 7 can be extracted through the metering pump 10 at the outlet of the water tank 7 to flush the various pipes and the ion exchange column 3 to ensure the overall cleanliness of the device for subsequent use.

[0040] The regeneration solution tank 2 and the wastewater solution tank 9 are both equipped with a stirrer 6 to facilitate the preparation of the regeneration solution and the rapid treatment of the wastewater solution to meet the discharge standards.

[0041] Each group of ion exchange columns 3 is equipped with two valves 4, which are respectively distributed at the inlet section and the outlet section of the valve 4. The flow rate at the ion exchange column 3 can be stabilized by adjusting the valve 4, thereby achieving constant distribution of regeneration liquid, good uniform regeneration effect, and low regeneration liquid consumption.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A resin regeneration device with good stability, characterized in that: The invention comprises a regeneration solution tank (2) for preparing a solution, wherein the regeneration solution tank (2) is connected to a buffer (8) arranged at a high position via a pipeline, and the solution in the regeneration solution tank (2) can be transported to the buffer (8) via a metering pump (10), and at least one group of ion exchange columns (3) is connected to the buffer (8) via a pipeline below, and each group of ion exchange columns (3) is equipped with a valve (4) for regulating pressure and a flow meter (5) for detecting flow rate, and the ion exchange columns (3) are also equipped with a wastewater solution tank (9) for collecting and treating waste liquid.

2. The resin regeneration device with good stability according to claim 1, characterized in that: The buffer (8) is also connected to a water outlet tank (7) for supplying water via a pipeline. The water outlet tank (7) is also provided with a set of metering pumps (10) for conveying water in the water outlet tank (7) to the buffer (8).

3. The resin regeneration device with good stability according to claim 2, characterized in that: The regeneration solution tank (2) and the wastewater solution tank (9) are both equipped with a stirrer (6).

4. The resin regeneration device with good stability according to claim 3 is characterized in that: Each group of ion exchange columns (3) is equipped with two valves (4), which are respectively distributed at the inlet section and the outlet section of the valve (4).

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