公开(公告)号：US4194889A

公开(公告)日：1980-03-25

申请号：US884803

申请日：1978-03-09

Applicant: Dieter Wanner

Inventor： Dieter Wanner

IPC: B01D50/00 ,  B01D51/00 ,  B01D51/04 ,  B01D51/10 ,  B01D53/50 ,  B01D53/77 ,  B03C3/014 ,  C01B17/56 ,  F23J15/00 ,  B03C3/01 ,  B01D47/00 ,  B03C3/16

CPC classification number: C01B17/56 ,  B01D53/507 ,  Y02P20/129

Abstract: The sulfur-containing roasting gases of an ore-roasting plant are cooled in a waste-heat boiler, which produces steam, and then are subjected to particle removal in an electrostatic precipitator or cyclone. The gases are then scrubbed with recirculated aqueous sulfur acid and the gas is then passed through an electrostatic precipitator before being supplied to a plant for the contact process production of sulfur acid. According to the invention, the process is improved by condensing water from the gas in an indirect cooler between the scrubber and the final electrostatic precipitator while water or aqueous sulfur acid is sprayed into the gas upstream of the indirect gas cooler to augment the heat transfer from the gas to the cooled wall thereof.

Abstract translation: 焙烧设备的含硫焙烧气体在产生蒸汽的废热锅炉中冷却，然后在静电除尘器或旋风分离器中进行颗粒去除。 然后用再循环的含水硫酸洗涤气体，然后将气体通过静电除尘器，然后供入工厂进行硫酸的接触过程生产。 根据本发明，通过在洗涤器和最终静电除尘器之间的间接冷却器中将来自气体的水冷凝，同时将水或含水硫酸喷入到间接气体冷却器上游的气体中以增加热传递 气体到其冷却壁。

公开(公告)号：US4908195A

公开(公告)日：1990-03-13

申请号：US333746

申请日：1989-04-03

Applicant: Dieter Wanner ,  Horst Schade

Inventor： Dieter Wanner ,  Horst Schade

IPC: B01D53/50 ,  B01D53/34 ,  B01D53/60 ,  B01D53/68 ,  B01D53/74 ,  B01D53/77 ,  B01D53/81 ,  F23J15/00 ,  F23J15/02

CPC classification number: F23J15/02 ,  B01D53/34

Abstract: Disclosed is a process for the purification of an exhaust gas which contains dust and gaseous pollutants, such as SO.sub.2, SO.sub.3, HCl, HF and nitrogen oxides. In the process 70 to 90% of the total amount of sorbent required is introduced as a dry powder into the gas stream and the remaining 10 to 30% of the sorbent is introduced into the gas stream as a solution or suspension after a turbulence has been induced in the gas stream.

Abstract translation: 公开了一种包含灰尘和气态污染物质如SO2，SO3，HCl，HF和氮氧化物的废气净化方法。 在该方法中，将所需吸附剂总量的70至90％作为干粉引入气流中，并且将剩余的10至30％的吸附剂作为溶液或悬浮液在湍流之后作为溶液或悬浮液引入气流中 在气流中诱发。