Eluting device for preparing heparin sodium

The utility model provides an elution device for preparing heparin sodium, and relates to the technical field of heparin sodium, the elution device for preparing heparin sodium comprises an elution tank, a water pump and a filter box, the bottom of the elution tank is fixedly connected with a material pumping pipe; in the process of filling the solution into the filter box, the electromagnetic valve on one shunt pipe is opened, the electromagnetic valves on the other two shunt pipes are closed, the resin in the solution is filtered by one elution filter screen, and then the resin in the solution is filtered by opening the electromagnetic valve on the communicating pipe. The filtered solution is discharged into the elution tank again, the sodium chloride solution is added again, the operation is repeated for elution again, resin can be fully eluted after three times of elution, the heparin component adsorbed in the resin can be extracted, and the device replaces the previous mode that three elution tanks are u