3results about How to "Prevent drainage" patented technology

The utility model discloses a basket grating for pump station belongs to water conservancy engineering and environmental protection equipment technical field. The basket grating includes grating box body, grating box body one end is equipped with grating end plate, grating end plate downward extension, grating end plate is equipped with the window on, be equipped with the sliding plate of up and down sliding in the window, be equipped with the through -hole on the sliding plate, install the inlet pipe in the through -hole, the bottom of grating box body is linked with the flow guide elbow pipe, grating box body works, inlet pipe and grating box body inner chamber intercommunication, grating box body cleaning, inlet pipe and flow guide elbow pipe intercommunication. The utility model discloses through setting up and down sliding sliding plate and double -deck flexible mesh cloth, realized the cycle operation of inlet, filtration, cleaning and reset, effectively improved the efficiency and effect of pump station sewage filtration, convenient to the cleaning and maintenance of impurity simultaneously, can satisfy modern pump station high -efficient, stable operation's demand.

The invention relates to an efficient flotation separation method for complex copper-iron sulfide ore, and belongs to the technical field of flotation reagents. A combined collecting agent is prepared, the combined collecting agent is composed of 75-80 parts of amino trimethylene phosphonic acid, 10-15 parts of xanthate, 5-10 parts of ethionine ester and 0.5-1 part of polyol fatty acid ester, and the mass concentration of the combined collecting agent is 30%-50%; pulping: adding 200-800g / t of vulcanizing agent into the complex copper-iron sulfide ore, grinding the complex copper-iron sulfide ore until the complex copper-iron sulfide ore with the fineness of-0.074 mm accounts for 65-90%, and then pulping the complex copper-iron sulfide ore until ore pulp with the solid concentration of 25-40wt% is obtained; and flotation is conducted, specifically, the ore pulp with the solid concentration being 25-40 wt% is subjected to flotation operation of one-time roughing, three to four times of concentration and two to three times of sweeping, copper concentrate and sulfur tailings are obtained, and the flotation process is conducted through a combined collecting agent in the flotation operation process of one-time roughing, three to four times of concentration and two to three times of sweeping. The novel combined collecting agent is developed to serve as a flotation reagent for efficient separation of chalcopyrite and pyrite, and an excellent complex copper-iron sulfide mineral flotation separation effect is achieved in ore pulp under the low-alkali condition.

The utility model relates to the technical field of drainage equipment, and discloses a drainage structure for municipal engineering, which comprises a mounting box, a water tank and a support column, a drainage pipe is fixedly mounted at the top of the support column, and one end of the drainage pipe is closed. According to the drainage structure for municipal engineering, the water distribution assembly is arranged, after the water distribution assembly is used, a groove and a guide groove rotate, when the guide groove rotates to make contact with a guide column, the guide groove in a rotary disc can guide the guide column, a piston is driven to be pulled into a containing chamber, a drainage pipe is in an open state at the moment, and then drainage is conducted in the direction; when the groove rotates to be in contact with the guide column, the guide column can be guided by the groove in the rotating disc, the piston is driven to be inserted into the drainage pipe, the drainage pipe is in a blocked state at the moment, then drainage is stopped, the function of independent drainage in multiple directions is achieved, and the requirements of domestic water or farm irrigation or industrial water and the like are met.