Wedge Wire Resin Trap Filter for Ion Exchange

Product Description

Resin trap filter is generally installed at the back end of the negative bed, positive bed, and mixed bed of the ion exchanger. When the quality of the resin is poor and the water pressure disturbance is large (especially high pressure disturbance). When the resin is damaged, the resin will enter the back-end desalted water system and affect the normal operation of other equipment in the system, so a resin trap filter screen needs to be installed. 
On the water system pipeline near the outlet of equipment containing resin such as ion exchangers, install a resin trap filter screen with a hole diameter much smaller than that of the resin. It also has a flushing function. When the resin passes through, it can be intercepted and captured by the filter screen. At the same time, it is automatically flushed through the front and rear differential pressure to discharge the captured resin out of the system.
Resin trap filter is used as a supplementary equipment of the ion exchanger to prevent the trapped resin from leaking into the desalted water system when the water outlet device fails. To ensure the normal operation and use of subsequent equipment. It has small size and high recycling efficiency.
Our resin trap filter uses stainless steel wedge wire screen as raw material. The stainless steel trapezoid profile wire filter screen has high capture efficiency, large flow area, good mechanical strength and low pressure.
Resin trap filter selection can select the corresponding specifications and models according to the flow rate in the above table. Of course, we also provide customized services for materials with special specifications. Resin trap filters are usually made of high-quality stainless steel. Hydrochloric acid and sodium hydroxide solutions are used in the regeneration process of the front-end yin and yang mixed bed, which are highly corrosive.
Low quality. During the resin manufacturing process, due to improper maintenance of process parameters, some or a large number of resin particles will be cracked or broken, which is manifested in low crushing strength of the resin particles and low balling rate after grinding.
Frozen. Resin particles contain a large amount of moisture inside. When stored or transported at sub-zero temperatures, this moisture will freeze and expand in volume, causing the resin particles to collapse. Frozen resin has a large number of cracks visible under the microscope. Severe breakage will occur within a short period of time after use. In order to prevent the resin from freezing, the resin should be stored at ***0℃ and avoid transportation during the freezing period.
Dry. Resin particles gradually lose their internal moisture when exposed to air. The resin particles shrink and become smaller. When dry resin is immersed in water, it quickly absorbs water and the particle size expands. This causes cracking and shattering of the resin. For this reason, the resin must be kept sealed during storage and transportation to prevent drying out. For dried resin, it should first be immersed in saturated salt water. The high concentration of ions in the solution is used to inhibit the expansion of resin particles. Then gradually dilute with water to reduce cracking and breakage of the resin.
Effect of osmotic pressure. During the failure process of resin under normal operating conditions, the resin particles will generate internal stress that expands or contracts. During long-term use, resin repeatedly expands and contracts, which is the main reason for cracks or breakage of resin particles. The speed of resin expansion and contraction depends on the speed of resin transformation, which in turn depends on the salt concentration and flow rate of the incoming water. When gel-type resin is used for chemical desalination of natural water, the maximum flow rate generally does not exceed *0m/h; when used for condensate water desalination, the maximum flow rate generally does not exceed *0m/h. Due to its solid skeleton structure and large porosity, macroporous resin can withstand large transformation speeds, and the flow rate of condensate can be as high as **0m/h.