METHOD FOR RESTORING FORMER RESERVOIRS IN FISHING LAKES

摘要

FIELD: hydraulic engineering, particularly in fish industry, for cleaning fish-breeding pools in fish rearing stations. ^ SUBSTANCE: method of deepening pool bottom and removing silt and algae with the use of special device connected to tractor, wherein the special device is scraper provided with two blades involves installing anchor in pool center in the deepest pool area, wherein the anchor is provided with pulley installed on vertical pin so that pulley may rotate in all directions about the pin; passing cable around the pulley to create closed loop and connecting the loop to tractor winch; connecting scrapper to one loop branch so that scraper blades may move in one direction to perform work and in another direction to perform idle motion; changing scraper direction after each 2-3 working travels thereof. Scraper direction is changed by moving tractor along arch having radius equal to loop length to the right or to the left along with continuing bottom deepening operation. ^ EFFECT: increased efficiency of water pool cleansing, reduced cost of fish growing and increased environmental safety. ^ 1 dwg