Pre-coating membrane separation technology and complete equipment

The invention discloses a pre-coating membrane separation technology and complete equipment. The complete equipment includes one or more sets of expandable pre-coating membrane filter function modules, a common coating system, a common water inlet and production system, and a common bursting membrane backwashing system; the coating system includes a membrane powder adding device, a coating box, and a circulating coating pump; the water inlet and production system includes a variable frequency water supply pump; and the bursting membrane backwashing system includes a backwashing water pump, anair-supplement pressure-regulation valve, a compressed gas buffer tank, and an air inlet valve. The technology and equipment realize the following purposes: the quantity of the pre-coating membrane filter function modules is expanded according to a treatment scale, each set of modules can be independently subjected to operation processes such as filter, bursting membrane backwashing and coating, the operating status of ea