Delivery Time:20 work days
Certification:ISO9001 : 2008

Production Description

While the flue gas enters into the dust collector, alkaline water overflows from upper tower sink. It forms 5mm water film layer on the cylinder wall. The flue gas enters from bottom body with tangential velocity, which provides centrifugal force to make the gas rise and rotate along the wall inside the device. The flue gas gets in touch with water film of the cylinder body under the action of centrifugal force. While the dust is humidified by water film, sulfide reacts with alkaline droplets and flows into the circulation tank with the water from the bottom spillway hole. After purification, gas rises through the upper cylinder cone part and completes the purification process.

Integrated Water film Dust Collector is transported in a whole from factory.

1 . Dust Collector Efficiency: 92- 96 %

2 . Desulphurization: 72- 89 %

3 . Inlet Gas Speed: 17- 22 m/s

4 . Ventri Spray Device Resistance: ＜300Pa

Principle of Operation ( Venturi Desulphurization Device )

Venturi desulphurization device contains shrinkage pipe, choke and diffuser pipe. It is designed to be rectangular to connect of the water - film desulphurization dust collector. Flue gas gradually accelerated entering into the shrinkage pipe. When the gas reaches the highest speed and the minimum pressure at the choke,it adsorbs the alkaline water sprayed. After fully mixed, the dust and sulfide in the flue gas are humidified and adsorbed to reach the purpose of removing part of dust and sulfide.

Precautions

1 Before operation, ensure smooth water supply system and open all the valves; Start the pump to inject water inside the tower till great amount of water spills out the overflow port.

2 Start operating induced draft fan; when the boiler shuts down, stop the induced draft fan for some while and then cease supplying water to the device. During operation, water-break and dry burning shall not be allowed inside the towel.

3 Check and clean the dust and slag in sedimentation tank on regular and frequent basis, maintain the quality of recycling water and ensure effective space for sedimentation tank

4 Check the PH value of water in circulating pool regularly, it is suggested that water in sedimentation tank shall be in alkaline condition (PH value shall be kept between 9 and 10)

5 Open the access hole on the towel periodically (generally three to five months), check and clean the dust in time.

6 In case of the intermittent burning in boilers and high density of dust because of the insufficient sediment caused by the small size of water sink, there will be more pressure on the dust collector, adding increasing load on the boiler. It is necessary to check if there is dust in venturi, the inlet of water film desulfurization dust collector and the elbow of back pass and clean it immediately.

Maintenance and Notification
1	Before operation, quality should be checked, and the water supply system should operate normally. The water seal of ash discharge outlet should be tight as well.
2	Before operation, please turn on the water pump and inject water to the inside cylinder until there is large amount of water draining. Then turn on the induced fan. When the boiler shuts down, stop the induced fan for some while and then cease supplying water to the device. (During operation, water-break and dry burning should be forbidden inside the towel. Regular check on spillway trough is necessary, as well as the flue gas temperature and resistant)
3	Neutralization reaction occurs when alkali waste water or flushing slag water can go on with acidic waste water in the sedimentation tank, after purifying, the water can recycle.
4	Check and clean the dust and slag in sedimentation tank on regular and frequent basis, maintain the quality of recycling water and ensure effective space for sedimentation tank.
5	Check the PH value of water in circulating water tank regularly, corresponding lye process should start according to the result of test result (PH test paper can be adopted while testing). When the paper becomes scarlet, lye should be added. It is suggested that water in sedimentation tank shall be in alkaline condition (PH value shall be kept between 9 and 10).
6	If the dust collect does not operate for a long time or upper spillway trough shows up flashing phenomena, clean water (tap water) should be provided to wash the ash deposition in water tank about 1 hour

Why us

1 . Haina has 20-year experience on Flue Gas Treatment Solutions that widely used in various industries.
2 . Large stock of devices an