Portable ion exchange resin regeneration device and regeneration method

Abstract

The ion exchange resin regeneration device comprises a base, a supporting column and a pipe body, a supporting column is installed on the base and used for supporting the pipe body, and the pipe body is arranged in an inclined mode. Two ends of the pipe body are respectively a high-position end and a low-position end; two open holes, namely a water outlet and an air outlet, are formed in the end surface of the high-position end; an open hole is formed in the end face of the low-position end and serves as a water inlet; the body of the pipe body is cylindrical, and a resin inlet and a resin outlet are formed in the side wall of the cylindrical body; the resin inlet and the resin outlet are positioned on the same axial connecting line of the cylindrical side wall and are positioned right above the cylindrical body; resin in the exchange column of the hydrogen conductance meter can be regenerated and reused after failure, and due to the fact that the waste resin belongs to hazardous chemical waste, the environmental protection pressure of the waste resin can be reduced through recycling.

Description

Technical Field

[0001] The invention relates to the field of electrochemical water treatment, in particular to a portable ion exchange resin regeneration device. Background Art

[0002] At present, the chemical #3-6 unit feed water hydrogen conductivity meter, saturated steam hydrogen conductivity meter, and heating hydrophobic hydrogen conductivity meter in the power plant system correspond to a total of nine sets of exchange columns, which are equipped with color-changing strong acid cation exchange resins. After running for a period of time, they quickly fail due to the exchange and adsorption of ammonium ions in the water. After failure, the resin needs to be replaced, which affects the detection of the effluent water quality.

[0003] The resin in each exchange column runs for about 3-6 months and is discarded after use. The resin is replaced about 36 times a year, and about 180 kg of resin is replaced. The existing resin is not reused, which greatly wastes the cost of bulk materials. At the same time, the discarded resin increases the pressure on the environment. Summary of the invention

[0004] The purpose of the present invention is to facilitate the reuse of resin in an existing exchange column and to provide a portable ion exchange resin regeneration device.

[0005] An ion exchange resin regeneration device comprises a base, a support column, and a tube body; characterized in that:

[0006] A support column is installed on the base to support the pipe body, and the pipe body is arranged in an inclined manner;

[0007] The two ends of the tube body are respectively a high end and a low end;

[0008] Two openings are arranged on the end surface of the high end, which are respectively a water outlet and an air outlet;

[0009] An opening is provided on the end surface of the low end, which is a water inlet;

[0010] The main body of the tube is cylindrical, and a resin inlet and a resin outlet are arranged on the side wall of the cylindrical main body; the resin inlet and the resin outlet are located on the same axial line of the cylindrical side wall and just above the cylindrical main body.

[0011] A regeneration method for an ion exchange resin regeneration device, characterized in that:

[0012] The steps include:

[0013] 1) Initial layout; adjust the inclination angle of the tube body according to different resin characteristic parameters;

[0014] 2) Introduction of resin preparation;

[0015] Connect the water outlet and water inlet to the water supply system, and open the air outlet to the ambient atmosphere;

[0016] The resin outlet is sealed with a hole cap, and the pipe joint of the resin inlet is connected to the mixed ion exchanger outlet water sampler in the power plant chemical water system;

[0017] The medium water in the outlet sampler of the mixed ion exchanger flows into the cylinder; after the medium water is full, the outlet is sealed with a hole cap;

[0018] 3) Introducing resin;

[0019] When the water supply system is working, the water outlet is used for water inlet and the water inlet is used for water outlet. An ejection effect is generated at the resin inlet, and the exchange resin in the ion exchanger is sucked into the cylinder through the resin inlet. After the suction is completed, the resin inlet is sealed with a hole cap.

[0020] 4) Alternate water washing;

[0021] The water supply system works alternately. The resin can be backwashed by water inlet from the bottom and water outlet from the top, or forward washed by water inlet from the top and water outlet from the bottom. The forward wash or backwash is performed alternately for a certain length of time or number of times.

[0022] 5) Air washing;

[0023] Cut off the water supply system, seal the water outlet and water inlet with hole caps, and then perform air washing;

[0024] During air washing, the resin outlet is connected to the compressed air system, the air outlet is open to the ambient atmosphere, and compressed air is used for washing. After a certain period of air washing, the air washing is terminated.

[0025] 6) Recycling;

[0026] After the regeneration is qualified, the resin is discharged from the resin outlet and reloaded for reuse.

[0027] The beneficial effects of the present invention are:

[0028] Compared with the prior art, the present invention can regenerate the resin inside the hydrogen conductivity meter exchange column after it fails and reuse it for 2-3 years, which can save the resin cost. Since the waste resin is a hazardous chemical waste, recycling it can reduce the environmental pressure of the waste resin. In addition to economic benefits, it also has great social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a diagram of a portable ion exchange resin regeneration device.

[0030] In the figure: 1, base 2, support column 3, cylinder 31, water inlet 321, water outlet 323, air outlet 331, resin inlet 333, resin outlet DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] An ion exchange resin regeneration device comprises a base 1, a support column 2, and a tube body 3.

[0033] Two support columns 2 are installed on the upper surface of the base 1 to support the tube body. The two support columns are of different heights, and the tube body 3 is arranged in an inclined manner, forming an angle with the horizontal plane. The inclination angle of the tube body can be adjusted by adjusting the height of the support column 2, and the angle can be adjusted as needed.

[0034] The tube body 3 and the support column 2 are installed in a detachable manner. The upper end of the support column 2 has an arc groove for clamping the outer wall of the tube body 3 for positioning and installation.

[0035] The tube body 3 is made of transparent material or non-transparent material, and a long strip observation window is formed on the outer wall along the axial direction. The cylinder body is transparent or has an observation window, so that the capacity and state of the resin in the cylinder body can be observed. The diameter of the tube body is about 5-10CM. Its length is about 40-60CM.

[0036] The two ends of the tube body 3 are respectively a high end and a low end.

[0037] Two openings are arranged on the end surface of the high end, namely a water outlet 321 and an air outlet 323 .

[0038] An opening is provided on the end surface of the lower end, which is a water inlet 31 .

[0039] A filter is provided at the high end and the low end of the tube body 3 , which is a mesh body with a mesh diameter smaller than the exchange resin particle diameter, and can keep the exchange resin inside the tube body and prevent it from passing through the water outlet 321 , the air outlet 323 , and the water inlet 31 .

[0040] The main body of the tube body 3 is cylindrical, with two ends open and closed by flanges. A mesh filter is laid inside the flange.

[0041] The water outlet 321 and the air outlet 323 are provided on the high-end flange, and the water inlet 31 is provided on the low-end flange.

[0042] The side wall of the cylindrical body is provided with a resin inlet 331 and a resin outlet 333. The resin inlet 331 and the resin outlet 333 are located on the same axial line of the cylindrical side wall and directly above the cylindrical body.

[0043] Each opening on the cylinder 3 is provided with a corresponding pipe joint for connecting with an external pipeline system, and realizing a connection relationship with a hose in the external pipeline system, such as a rubber tube or a plastic tube.

[0044] The resin inlet 331, the resin outlet 333, the water outlet 321, the air outlet 323, and the water inlet 31 are also equipped with sealing hole caps, which can be installed on the pipe joints for sealing as needed.

[0045] In specific applications,

[0046] 1) Initial arrangement: The cylinder 3 is placed in the arc groove at the upper end of the support column 2, with the resin inlet 331 and the resin outlet 333 located directly above, the water outlet 321 and the air outlet 323 located at the high end, and the water inlet 31 located at the low end.

[0047] According to different resin characteristic parameters, such as density and particle size, the height of the support column 2 is adjusted, and the tilt angle of the tube body 3 is adjusted to change between 10-30 degrees. The smaller the specific gravity and the smaller the particle size of the resin, the larger the tilt angle, while the larger the specific gravity and the larger the particle size, the smaller the tilt angle.

[0048] 2) Introduce resin preparation work.

[0049] The water outlet 321 and the water inlet 31 are connected to the water supply system, and the air outlet 323 is open to the ambient atmosphere.

[0050] The resin outlet 333 is sealed with a hole cap, and the pipe joint of the resin inlet 331 is connected to the mixed ion exchanger outlet water sampler in the power plant chemical water system through a hose.

[0051] The medium water in the water sampler of the mixed ion exchanger flows into the cylinder through the hose. After the medium water is full, the gas outlet 323 is sealed with a hole cap.

[0052] 3) Introducing resin

[0053] The water supply system is working. In this stage, the water outlet 321 is used for water intake, and the water inlet 31 is used for water discharge. A fluid environment with a certain flow rate is formed inside the cylinder, and a fluid injection effect is generated at the resin inlet 331, so that the exchange resin in the ion exchanger is sucked into the cylinder through the resin inlet 331. The introduced exchange resin is in an ineffective state after a certain working time. The cylinder is transparent or has an observation window, and the capacity and state of the resin in the cylinder can be observed. After the suction is completed, the resin inlet 331 is sealed with a hole cap.

[0054] 4) Alternate water washing

[0055] The water supply system switches to work, the water inlet 31 is used for water intake, and the water outlet 321 is used for water discharge, forming a fluid environment with a certain flow rate inside the cylinder, wherein the resin is concentrated at the lower part of the cylinder, and the water flows upward to impact the resin to form boiling backwash.

[0056] The water supply system works alternately, and can backwash the resin by inletting water from below and outletting water from above, or can forward wash the resin by inletting water from above and outletting water from below. The forward wash or backwash is performed alternately for a certain length of time or number of times.

[0057] The cylinder is transparent or has an observation window, through which the capacity and state of the resin in the cylinder can be observed. After a certain period of cleaning, the water quality becomes clear, and the water washing is terminated.

[0058] 5) Air washing

[0059] The water supply system is cut off, and the water outlet 321 and the water inlet 31 are sealed with hole caps and then air washed.

[0060] During air washing, one end of the cylinder is connected to a compressed air pipe and the other end is exhausted. The resin outlet 333 is connected to the compressed air system, and the air outlet 323 is opened to the ambient atmosphere. Compressed air is used for scrubbing. After a certain period of air scrubbing, the air washing is ended.

[0061] During air washing, the cylinder can be repeatedly rotated left and right along the central axis in the arc groove at the upper end of the support column 2, so that the resin particles can be scrubbed in all directions by compressed air.

[0062] 6) Recycling

[0063] After the regeneration is qualified, the cylinder is removed, the resin outlet 333 is rotated downward, the resin is discharged from the resin outlet 333, and the resin is reinstalled for reuse.

[0064] The device of the present application can regenerate the resin inside the hydrogen conductivity meter exchange column after it fails and reuse it for 2-3 years, which can save the resin cost. Since the waste resin is a hazardous chemical waste, recycling it can reduce the environmental pressure of the waste resin. In addition to economic benefits, it also has great social benefits.

[0065] Finally, it should be noted that the above description is only an explanation of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail, those skilled in the art can still modify the technical solutions described above or replace some of the technical features with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ion exchange resin regeneration device, comprising a base, a support column, and a tube body; characterized in that: A support column is installed on the base to support the pipe body, and the pipe body is arranged in an inclined manner; The two ends of the tube body are respectively a high end and a low end; Two openings are arranged on the end surface of the high end, which are respectively a water outlet and an air outlet; An opening is provided on the end surface of the low end, which is a water inlet; The main body of the tube is cylindrical, and a resin inlet and a resin outlet are arranged on the side wall of the cylindrical main body; the resin inlet and the resin outlet are located on the same axial line of the cylindrical side wall and just above the cylindrical main body.

2. An ion exchange resin regeneration device according to claim 1, characterized in that: Two supporting columns are installed on the upper surface of the base for supporting the pipe body, and the two supporting columns have different heights.

3. An ion exchange resin regeneration device according to claim 2, characterized in that: The support column has a height adjustment structure to adjust the inclination angle of the tube body.

4. An ion exchange resin regeneration device according to claim 1, characterized in that: The tube body and the support column are installed in a detachable manner. The upper end of the support column is provided with an arc groove for inserting the outer wall of the tube body for positioning and installation.

5. An ion exchange resin regeneration device according to claim 1, characterized in that: The tube body is made of transparent material or non-transparent material, and a long strip observation window is formed on the outer wall along the axial direction.

6. An ion exchange resin regeneration device according to claim 1, characterized in that: The high end and the low end of the tube body are provided with filter elements, which are mesh bodies, and the mesh diameter of which is smaller than the particle diameter of the exchange resin.

7. An ion exchange resin regeneration device according to claim 1, characterized in that: Each opening on the cylinder is equipped with a corresponding pipe joint for connecting with an external pipe system.

8. An ion exchange resin regeneration device according to claim 7, characterized in that: The pipe joint is also equipped with a sealing hole cap, which can be installed on the pipe joint for sealing as needed.

9. A regeneration method for an ion exchange resin regeneration device according to claim 1, characterized in that: The steps include: 1) Initial layout; adjust the inclination angle of the tube body according to different resin characteristic parameters; 2) Introduction of resin preparation; Connect the water outlet and water inlet to the water supply system, and open the air outlet to the ambient atmosphere; The resin outlet is sealed with a hole cap, and the pipe joint of the resin inlet is connected to the mixed ion exchanger outlet water sampler in the power plant chemical water system; The medium water in the outlet sampler of the mixed ion exchanger flows into the cylinder; after the medium water is full, the outlet is sealed with a hole cap; 3) Introducing resin; When the water supply system is working, the water outlet is used for water inlet and the water inlet is used for water outlet. An ejection effect is generated at the resin inlet, and the exchange resin in the ion exchanger is sucked into the cylinder through the resin inlet. After the suction is completed, the resin inlet is sealed with a hole cap. 4) Alternate water washing; The water supply system works alternately. The resin can be backwashed by water inlet from the bottom and water outlet from the top, or forward washed by water inlet from the top and water outlet from the bottom. The forward wash or backwash is performed alternately for a certain length of time or number of times. 5) Air washing; Cut off the water supply system, seal the water outlet and water inlet with hole caps, and then perform air washing; During air washing, the resin outlet is connected to the compressed air system, the air outlet is open to the ambient atmosphere, and compressed air is used for washing. After a certain period of air washing, the air washing is terminated. 6) Recycling; After the regeneration is qualified, the resin is discharged from the resin outlet and reloaded for reuse.

10. The regeneration method according to claim 9, characterized in that: In steps 3) and 4), the cylinder is transparent or has an observation window, so that the capacity and state of the resin in the cylinder can be observed; In step 6), after the barrel is removed, the resin outlet is rotated downward to discharge the resin from the resin outlet.

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