CN201240854Y

CN201240854Y - On-line purification apparatus for micro silica powder

Info

Publication number: CN201240854Y
Application number: CNU200820105092XU
Authority: CN
Inventors: 李垠平; 宣俭
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-24
Filing date: 2008-04-24
Publication date: 2009-05-20
Anticipated expiration: 2018-04-24

Abstract

The utility model relates to an on-line purifying device of micro silica powder. The purifying device is characterized in that: a spraying condenser, a branch pipe incremental supercharger, a tube array type cooler, a main pipe incremental supercharger, a multi-level multi-connected cyclone dust collector and a bag dust collector are sequentially connected at the back of a flue pipe of an electric smelting furnace; the on-line purifying device is characterized in that: 1. the multi-level multi-connected cyclone dust collector is arranged for removing 95 percent of particles with diameter more than 3 micro-meter, the particles are impurities mostly; 2. the incremental superchargers are adopted for making up the wind pressure loss brought by the multi-level multi-connected cyclone dust collector, environmental-friendly dedusting effect is ensured, thus ensuring the content of the silicon dioxide more than 85 percent at the on-line state.

Description

The online purifying plant of SILICA FUME

Technical field

The utility model relates to dust purifying plant in the metallurgical process, particularly relates to the online purifying plant of a kind of SILICA FUME.

Background technology

SILICA FUME be the iron alloy metallurgical process flue gas through the environmental protection cleaning apparatus collect and dust, when wherein dioxide-containing silica reaches 85% very big utility value is just arranged when above.The device of existing collection SILICA FUME constitutes as shown in Figure 1:

Smoke pipe → scatterer → common tornado dust collector → induced draft fan → dust chamber

Analysis revealed: in the iron alloy flue gas, most content of particle diameter dust below 2 microns are silicon-dioxide, particle diameter more than 3 microns dust mostly be impurity.And the setting of said apparatus is only gathered dust for environmental protection and is provided with, because it is bigger that smoke pipe, scatterer consume the blast of induced draft fan, tornado dust collector only can be removed the impurity of particle diameter more than 20 microns to removing the weak effect of the non-silicon-dioxide impurity in the flue gas, so cause dioxide-containing silica to reduce.Therefore at present, the content of the SILICA FUME that most of manufacturers are collected all can't reach more than 85%.

Summary of the invention

The purpose of this utility model just is to overcome the defective of above-mentioned prior art, and the dust granules of a kind of effective removal more than 3 microns is provided, and improves the online purifying plant of SILICA FUME of SILICA FUME content.

The utility model is achieved through the following technical solutions:

The online purifying plant of a kind of SILICA FUME is characterized in that: be connected and installed with spraying distiller, arm increment supercharging blower, shell and tube cooler, house steward's increment supercharging blower, multistage multi-joint tornado dust collector and bagroom behind the smoke pipe of the hot stove in ore deposit successively.

The utility model by 1, multistage multi-joint high efficiency cyclonic dust collector be set remove 95% particle diameter particle more than 3 microns, these particle major parts are impurity, 2, adopt the increment supercharging blower to remedy air loss and assurance environmental protection dust removing effects that multistage multi-joint high efficiency cyclonic dust collector brings, thereby guaranteed that the presence dioxide-containing silica is more than 85%.

Description of drawings

Fig. 1 is a prior art dust collecting system device synoptic diagram;

Fig. 2 is the structural representation sketch of the online purifying plant of the utility model SILICA FUME.

Embodiment

The dust arrester installation of prior art is to be connected and installed shell and tube cooler 3, tornado dust collector 4, main air blower 5 and bagroom 6 behind the smoke pipe of the hot stove 1 in ore deposit successively as shown in Figure 1, and 2 is iron notch among the figure;

The online purifying plant of SILICA FUME of the present utility model is to have set up supercharging blower and multistage multi-joint tornado dust collector on the basis of above-mentioned prior art, specifically: be connected and installed spraying distiller 7, arm increment supercharging blower 8, shell and tube cooler 3, house steward's increment supercharging blower 9, multistage multi-joint tornado dust collector 10, main air blower 5 and bagroom 6 successively behind the smoke pipe of the hot stove 1 in ore deposit.

Claims

1. the online purifying plant of SILICA FUME is characterized in that: be connected and installed with spraying distiller (7), arm increment supercharging blower (8), shell and tube cooler (3), house steward's increment supercharging blower (9), multistage multi-joint tornado dust collector and bagroom (6) successively behind the smoke pipe of the hot stove in ore deposit (1).