Abstract: A urea preparation machine includes a cabinet, a stirring tank, a filtering portion, a water tank portion and a heating portion. The stirring tank is provided in the cabinet. The filtering portion is provided in the cabinet. An inlet of the water tank portion is communicated with an outlet of the filtering portion. The heating portion is provided in the cabinet, the heating portion is communicated with the outlet of the water tank portion, and an outlet of the heating portion is communicated with the stirring tank. The independent heating portion is used for heating water in the water tank portion, then the water heated by the heating portion is conveyed to the stirring tank for preparing urea, through such installation, the heating portion is capable of heating the water in the water tank portion in time.

Abstract: A urea preparation machine includes a cabinet, a stirring tank, a filtering portion, a water tank portion and a heating portion. The stirring tank is provided in the cabinet. The filtering portion is provided in the cabinet. An inlet of the water tank portion s communicated with an outlet of the filtering portion. The heating portion is provided in the cabinet, the heating portion is communicated with the outlet of the water tank portion, and an outlet of the heating portion is communicated with the stirring tank. The independent heating portion is used for heating water in the water tank portion, then the water heated by the heating portion is conveyed to the stirring tank for preparing urea, through such installation, the heating portion is capable of heating the water in the water tank portion in time.

Abstract: The present invention provides a reminding method of program broadcasting and a reminding system of program broadcasting and a display device. The reminding method comprises: identifying a favorite program of a user; acquiring a broadcasting time of the favorite program; and sending reminding information of program broadcasting when an interval between the current time and the broadcasting time of the favorite program is less than or equal to a reminding time interval. According to the reminding method, the user may be prevented from missing the broadcasting of the favorite program, broadcasting channels no longer need to be sequentially searched after the user receives the reminding information, and aimless waiting for the program is no longer needed, so that the time and effort of the user are saved, and great convenience is provided for the user to timely and accurately watch the favorite program.