Fixed bed counter-current regeneration device of ion exchange resin and application method of fixed bed counter-current regeneration device

An ion exchange resin, countercurrent regeneration technology, applied in ion exchange regeneration, ion exchange bed cleaning/flushing, ion exchange, etc., can solve the problems of low regeneration efficiency, large mechanical wear, large desorption liquid output, etc., and achieve economical operation. cost, achieve separation, avoid mechanical wear effects

Active Publication Date: 2017-06-23
NANJING UNIV +1
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems of low regeneration efficiency, large mechanical wear, and large output of desorption liquid in traditional fluidized bed resin regeneration devices, the present invention provides an ion exchange resin fixed bed countercurrent regeneration device and its use method, which can systematically carry out the resin regeneration process Comprehensive control, reduce resin wear, improve resin regeneration efficiency, and at the same time effectively reduce the generation of desorption liquid, saving disposal costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fixed bed counter-current regeneration device of ion exchange resin and application method of fixed bed counter-current regeneration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, an ion exchange resin fixed bed countercurrent regeneration device in this embodiment includes a cyclone separator 1, a regeneration reactor 2, a fully mixed resin reactor 3, a desorption liquid storage tank 4 and a regeneration agent storage tank 5 , the cyclone separator 1 is placed on the top of the regeneration reactor 2, the top of the cyclone separator 1 is provided with an overflow port 11, and the upper part of the cyclone separator 1 communicates with the lower end of the fully mixed resin reactor 3 through the feed port 10, The feed port 10 is tangent to the cyclone separator 1, and the resin and water in the fully mixed resin reactor 3 are transported to the cyclone separator 1 by hydraulic pressure, and the solid-liquid separation is realized by centrifugal force. A resin inlet 12 is provided at the bottom of the cyclone separator 1 , and the resin enters the regeneration reactor 2 through the resin inlet 12 , and the remaining wat...

Embodiment 2

[0049] A kind of ion-exchange resin fixed-bed countercurrent regeneration device of the present embodiment is basically the same as embodiment 1, and further, the regeneration reactor 2 is a fiberglass material structure with a diameter of 1.5m and a height of 2m; the inner diameter of the cyclone separator 1 is 250mm, The cone angle of the lower cone of the cyclone separator 1 is 20°, the diameter of the feed inlet 10 is 75 mm, the diameter of the overflow port 11 is 100 mm, and the diameter of the resin inlet 12 is 35 mm; the resin filter 9 is two hollow tubes with closed ends. Cylinder, the diameter of the tightly wound screen around the resin filter 9 is 150 μm, and the regenerant outlet 13 is 60 cm away from the upper edge of the regeneration reactor 2 .

[0050] After the ion exchange resin is regenerated by the device, the adsorption equilibrium amount of the regenerated resin is greater than 95% of the adsorption equilibrium amount of the new resin.

Embodiment 3

[0052] An ion exchange resin fixed bed countercurrent regeneration device in this embodiment is basically the same as in Embodiment 2, except that the regeneration reactor 2 in this embodiment is a glass fiber reinforced plastic material structure with a diameter of 2.0 m and a height of 2.5 m; cyclone separation The inner diameter of the device 1 is 300mm, the cone angle of the lower cone of the cyclone separator 1 is 45°, the diameter of the feed inlet 10 is 50mm, and the diameter of the resin inlet 12 is 38mm; the resin filter 9 is 3 hollow cylinders with closed ends body, the diameter of the tightly wound mesh around the resin filter 9 is 150 μm, and the regenerant outlet 13 is 60 cm away from the upper edge of the regeneration reactor 2 .

[0053] When the present embodiment is in use, inject the fresh regenerant in the regenerant storage tank 5 (NaCl+1% NaOH solution with a mass concentration of 15%) or desorption liquid storage tank 5 into the regeneration reactor 2 thro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fixed bed counter-current regeneration device of ion exchange resin and an application method of the fixed bed counter-current regeneration device and belongs to the field of ion exchange resin regeneration. The fixed bed counter-current regeneration device comprises a cyclone separator, a regenerative reactor, an all-mixed resin reactor, a desorption liquid storage tank and a regenerant storage tank; the cyclone separator is arranged at the top of the regenerative reactor; the upper part of the cyclone separator is communicated with the all-mixed resin reactor; a resin inlet is formed at the bottom of the cyclone separator; a resin bed and a resin filter are arranged in the regenerative reactor; a resin outlet and a regenerant inlet are formed in the bottom of the regenerative reactor; the resin outlet is communicated with the all-mixed resin reactor; the regenerant inlet is communicated with the desorption liquid storage tank and the regenerant storage tank separately; and a regenerant outlet is also formed in one side of the regenerative reactor and is communicated with the desorption liquid storage tank. The resin regeneration efficiency can be effectively improved through the separator in a counter-current manner, the yield of a desorption liquid is reduced, mechanical wear of the resin is avoided and the fixed bed counter-current regeneration device can be matched with large-scale ion exchange resin application engineering.

Description

technical field [0001] The invention relates to the technical field of ion exchange resin regeneration, and more specifically relates to an ion exchange resin fixed-bed countercurrent regeneration device and its application method. Background technique [0002] With the continuous advancement of industrialization and urbanization, the shortage of water resources in my country has become increasingly prominent, and the prevention and control of water pollution has become the top priority of environmental governance. [0003] Ion exchange technology has a wide range of applications in the advanced treatment of drinking water sources and the reuse of reclaimed water. While ion exchange resin can effectively remove organic matter in water, it also has good removal effect on toxic inorganic ions such as nitrate, sulfate and bromide. At the same time, it can effectively reduce water disinfection by-products and biological toxicity. [0004] After the ion exchange resin is saturat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J49/05
CPCB01J49/05B01J49/60B01J49/90B01J49/09C02F1/38C02F1/42C02F2303/16
Inventor 施鹏曹勋丁新春李爱民戴建军张晓彭祥李冬梅李寅森唐佳丽
Owner NANJING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap