3results about How to "Guarantee production needs" patented technology

This utility model discloses a cooling water circulation system for a freeze dryer, including a refrigeration unit and a cooling water tank. The refrigeration unit is connected to the cooling water tank via pipelines. The outlet of the cooling water tank is connected to a first freeze dryer and a second freeze dryer via a main pipeline. The first and second freeze dryers are connected to the return outlet of the cooling water tank via return pipes. The outlet of the cooling water tank is connected to the main pipeline. A water pump and a shut-off valve are installed on the main pipeline. The main pipeline is connected to a tee. The first freeze dryer is connected to the tee via a first branch pipe, and the second freeze dryer is connected to the tee via a second branch pipe. The diameters of the first and second branch pipes are different. This utility model has a simple structure and reasonable design, allowing both freeze dryers to receive a matching water intake, thereby ensuring the refrigeration effect and meeting production needs.

The invention discloses an oxygen aeration device and process for polymer sewage preparation. The oxygen aeration device comprises an aeration disc (6) and an air supply system, the air supply system inputs air into the aeration disc (6), and the aeration disc (6) disperses and outputs the air into a dilution tank (5) for polymer sewage preparation; the oxygen aeration device dispersedly inflates air into a dilution tank (5) and stirs sewage in the dilution tank (5), so that the sewage is mixed with oxygen in air to remove reducing substances in the sewage; the problem that the viscosity of a polymer is lost due to the fact that reducing substances in sewage cannot be effectively removed due to the fact that the dissolved oxygen content of a water ejector oxygen aeration technology is low is solved.

The utility model provides a flue gas dust fall spraying device, which belongs to the technical field of spraying devices and comprises a flue. The containing groove is formed in the top of the flue, the top of the flue is fixedly connected with a fixing box, the fixing box corresponds to the containing groove, a prism spraying frame is rotationally connected between the inner walls of the fixing box, the two ends of the prism spraying frame extend to the two side ends of the fixing box, and the side ends of the prism spraying frame are fixedly connected with a plurality of atomizing nozzles; the plurality of atomizing nozzles are communicated with the inner wall of the prism spraying frame; the output end of a motor drives a driving gear to rotate, the driving gear drives a transmission belt to rotate to pull a driven gear to rotate, the driven gear drives a prism spraying frame to rotate, the prism spraying frame rotates to turn over a plurality of atomizing nozzles to the outside of a flue, and then the mounting mode of the atomizing nozzles is changed. The atomization nozzle can be conveniently disassembled and maintained by personnel, the maintenance difficulty of the atomization nozzle is reduced, and the maintenance of the spraying device is time-saving and labor-saving.