Desulfurization wastewater treatment apparatus and control system and control method thereof

A treatment device and technology for desulfurization wastewater, applied in the direction of gaseous effluent wastewater treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as broken equipment and corrosion, achieve uniform distribution, make full use of resources, and be easy to collect and recycle The effect of reuse

Pending Publication Date: 2017-08-04
张玉君
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Aiming at the problem that the waste water enters the desulfurization system during the existing desulfurization wastewater treatment process, which breaks the original desulfurization balance and causes equipment corrosion, the present invention provides a desulfurization wastewater treatment device and its control system and control method

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  • Desulfurization wastewater treatment apparatus and control system and control method thereof

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Effect test

Embodiment 1

[0047] like figure 1 , a desulfurization wastewater treatment device, including a wastewater system, and also includes a phase change generator 2 and a hot air unit, the top of the phase change generator 2 is provided with an outlet, and the bottom of the phase change generator 2 is provided with a solid discharge port , the phase change generator 2 communicates with the hot air unit, and the waste water system communicates with the atomizer 9 inside the phase change generator 2 .

[0048] The hot air output by the hot air unit is mixed with the desulfurization wastewater of the wastewater system atomized by the atomizer 9 to undergo mass heat exchange in the phase change generator 2 to form water vapor and solid particles, and the water vapor passes through the phase change generator 2 The top outlet is discharged, and the solid particles are discharged through the solid discharge outlet at the bottom of the phase change generator 2; the phase change generator 2 provides a pl...

Embodiment 2

[0050] like figure 1 , a desulfurization wastewater treatment device of this embodiment, compared with Embodiment 1, further includes a compressed air unit 10, and the compressed air unit 10 communicates with the atomizer 9.

[0051] The compressed air unit 10 is connected to the atomizer 9, which strengthens the atomization effect of the desulfurization wastewater, and makes the desulfurization wastewater form smaller droplets, so that the hot air and the droplets of the desulfurization wastewater can have a more sufficient mass-thermal reaction. So that the water in the desulfurization wastewater can be more thoroughly formed into water vapor and evaporated.

Embodiment 3

[0053] like figure 1 , a desulfurization wastewater treatment device of the present embodiment is further improved on the basis of embodiment 1 or 2, and further includes a gas-solid separator 3 and a fan 4, and the front end of the gas-solid separator 3 is connected to the phase change generator The outlet of 2 is connected, and the rear end of the gas-solid separator 3 is connected with the fan 4.

[0054] After the mass-heat exchange, the impurities and salt in the desulfurization wastewater crystallize to form solid particles. The solid particles include large-particle solids and small-particle solids. Large-particle solids refer to solid particles that fall under the action of hot air and gravity. The solid particles that rise together with the steam, and the large solid particles fall to the solid outlet of the phase change generator 2 under the action of gravity, and the water vapor and small particle solids enter the gas-solid separator 3 from the outlet of the phase c...

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Abstract

The invention discloses a desulfurization wastewater treatment apparatus and a control system and control method thereof, and belongs to the field of desulfurization wastewater treatment. The desulfurization wastewater treatment apparatus comprises a wastewater system, a phase change generator, and a hot air unit; the top of the phase change generator is provided with an outlet, the bottom of the phase change generator is provided with a solid outlet, the phase change generator is communicated with the hot air unit, and the wastewater system is communicated with an atomizer in the phase change generator. A controller is electrically connected to a water pump, adjusting valve and flowmeter in the wastewater system, a compressed air unit, a temperature detector, a fan and a heater. The controller controls the temperature of an outlet of the phase change generator to be 10 DEG C and above higher than the dew point temperature, and hot air temperature is controlled to 80 DEG C and above. The problems are solved that original desulfurization balance is destroyed and equipment corrosion s caused during desulfurization wastewater treatment in a flue, and zero pollution and emission of the desulfurization wastewater are achieved.

Description

technical field [0001] The invention belongs to the field of desulfurization wastewater treatment, and more specifically relates to a desulfurization wastewater treatment device and its control system and control method. Background technique [0002] When coal power chemical enterprises apply desulfurization technology in production, they will produce a certain amount of desulfurization wastewater. The composition of desulfurization wastewater is complex, mainly containing high-concentration suspended solids, supersaturated sulfite, soluble chloride and fluoride, and various heavy metal impurities. Many of them are the first category of pollutants that require strict control in the national environmental protection standards. Therefore, strict treatment of desulfurization wastewater is required to meet the "zero discharge" standard of desulfurization wastewater required by the state. The main difficulties in the treatment of desulfurization wastewater are that the water qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/12C02F1/16C02F103/18
CPCC02F1/12C02F1/16C02F2103/18
Inventor 张玉君
Owner 张玉君
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