Continuous gelatin concentrating device by membrane method

The utility model relates to a continuous gelatin concentrating device by a membrane method. The outlet of a roll-type membrane module of the device is communicated with a first connector of a four-way connection, a second connector and a third connector of the four-way connection are respectively connected with an original gelatin tank and a concentrated gelatin tank, the inlet of the roll-type membrane module is communicated with the outlet of a circulating pump, a suction pump and a filter are sequentially connected between the original gelatin tank and the inlet of the circulating pump in series, a first stop valve is serially connected on the pipeline between the suction pump and the filter, a second stop valve is serially connected on the pipeline between the original gelatin tank and the outlet of the roll-type membrane module, a first butterfly valve is serially connected on the pipeline between the outlet of the roll-type membrane module and the concentrated gelatin tank, a second butterfly valve is