High-temperature condensed water recycling and purifying system with ceramic membrane filter

Abstract

The invention provides a high-temperature condensed water recycling and purifying with a ceramic membrane filter. The high-temperature condensed water recycling and purifying with the ceramic membrane filter comprises a concentrating tank, a dual-pump structure, the ceramic membrane filter, a cleaning tank and a water purifying tank; the water outlet of the concentrating tank is connected with the water inlet of the dual-pump structure through a pipeline; the water outlet of the dual-pump structure is connected with the circulating water inlet of the ceramic membrane filter; the circulating water outlet of the ceramic membrane filter is connected with a communicating pipe of the dual-pump structure through a pipeline; the water purifying port of the ceramic membrane filter is connected tothe water purifying tank through a pipeline; the water inlet of the cleaning tank is connected with the water purifying port of the ceramic membrane filter through a three-way pipeline; the cleaning solution outlet of the cleaning tank is connected with the water inlet of the dual-pump structure through a three-way pipe; and the cleaning water returning port of the cleaning tank is connected withthe circulating water inlet of the ceramic membrane filter. The high-temperature condensed water recycling and purifying with the ceramic membrane filter is divided into two processing units so that separation and filtration can be separated; and by continuous concentration of water, a processing device for separating according to the physical characteristics of a medium is provided. The device occupies a small area, has high integration degree and a short construction period, and is easy to install.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a system for recovering and purifying high-temperature condensed water by a ceramic membrane filter. Background technique [0002] At present, superheated steam is widely used as thermal power and heat source in chemical industry, thermal power and other industries. After power consumption and heat exchange, superheated steam turns into condensed water. Its temperature is between 20°C and 99°C. If it is not polluted, the steam will condense The water is close to pure distilled water. However, due to pipe corrosion, material leakage, poor management and other reasons, the steam condensate of most enterprises contains certain oily substances, iron and other pollutants, so it cannot directly enter the boiler for recycling, resulting in the high-temperature condensation of most enterprises today. Most of the water is discharged on the spot, which not only wastes a lot of water resources ...

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Problems solved by technology

[0003] In view of this result, the utility model patent No. 02236450.1 discloses a high-temperature condensate water iron removal device, which uses fillers that can react quickly with iron ions to remove iron ions in high-temperature condensate water, but the device is mainly aimed at iron removal in high-temperature condensate water. It is designed for the removal of iron ions, but the removal effect on oil, colloid, soluble small molecule organic matter and inorganic ions is very poor. At the same time, there is also the disadvantage that iron ions cannot be effectively removed by oil-coated fillers.

The patent number is 200820078553.9, titled "a device for removing oil and iron from condensed water with composite membrane", which discloses a device for removing oil and iron from condensed water with composite membrane. The device needs continuous film covering during use, and the cycle is short , the process is extremely cumbersome and complicated, and consumes a lot of manpower and material resources

The patent number is 200820078652.7, and the name is "condensed water composite high-temperature degreasing and iron removal device". The utility model adopts high-temperature resin extraction + precision filter composite technology. The service life is short at high temperature, and frequent replacement of materials is required; precision filters are used in iron removal, and at this time, a pre-coated film is required on the surface of the filter element, and the entire oil and iron removal device has more control points and maintenance points during operation. , the processing cost increases, and the procedures are cumbersome and complicated

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