System and process for negative-pressure low-temperature evaporation concentration of desulfurization wastewater of power plant
An evaporative concentration system and desulfurization wastewater technology, which is applied in metallurgical wastewater treatment, multi-stage water treatment, heating water/sewage treatment, etc. It can solve problems such as poor filtration effect, poor system operation stability, and concentration of desulfurization wastewater.
Pending Publication Date: 2019-07-09
BEIJING NONVIA TECH
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[0011] The main purpose of this application is to provide a negative pressure low-temperature evaporation concentration system and process for desulfurization wastewater in power plants to solve the problems of desulfurization wastewater concentration, poor filtering effect, and poor system operation stability
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[0035]In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0036] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for ...
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The invention discloses a system and process for negative-pressure low-temperature evaporation concentration of desulfurization wastewater of a power plant. The system for negative-pressure low-temperature evaporation concentration of the desulfurization wastewater of the power plant comprises a negative-pressure low-temperature evaporation concentration device, a cyclone separator, a scraper filter, a clarifier, a plate-frame filter press and a concentrated water tank, wherein the desulfurization wastewater is introduced into a first wastewater inlet of the negative-pressure low-temperature evaporation concentration device, the concentrated liquid discharge mouth of the negative-pressure low-temperature evaporation concentration device is connected with a water inlet of the cyclone separator, and the overflow mouth of the cyclone separator is connected with the water inlet of the scraper filter; a filtrate outlet of the scraper filter is connected to a second wastewater inlet of the negative-pressure low-temperature evaporation concentration device, a sand discharge mouth of the cyclone separator and the sewage outlet of the scraper filter are connected with the water inlet of theclarifier, and the supernatant discharge mouth of the clarifier is connected with the water inlet of the concentrated water tank; and the sludge discharge outlet of the clarifier is connected with the material inlet of the plate-frame filter press. The technical problems of poor effects of concentration and filtration of the desulfurization wastewater and poor operation stability of the system are solved.
Description
technical field [0001] The present application relates to the field of desulfurization wastewater treatment in thermal power plants, in particular to a negative-pressure low-temperature evaporation concentration system and process for desulfurization wastewater in power plants. Background technique [0002] With the aggravation of water shortage and increasingly serious environmental pollution, wastewater treatment occupies an increasingly important position in thermal power plants. Wastewater recycling in thermal power plants has dual benefits of water saving and environmental protection. Through the recycling of wastewater, the realization of waste water resources has become the only way for thermal power plants to achieve sustainable development. In addition, from the perspective of economic operation and water environment protection, it is of great significance to save water consumption for power generation, improve water reuse rate, realize water saving and emission red...
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Login to View More IPC IPC(8): C02F9/10C02F11/122C02F103/16
CPCC02F9/00C02F11/122C02F2103/16C02F1/04C02F2301/08C02F1/001C02F2001/007C02F1/38
Inventor 夏阳徐成赞杨志燕
Owner BEIJING NONVIA TECH