Blast furnace gas dust remover
Technical field
The present invention relates to a kind of cleaning apparatus, be specifically related to a kind of blast furnace gas dust remover.
Background technology
The gas that produces when blast furnace gas is blast furnace ironmaking, it is the inner main energy sources of using of iron and steel enterprise, generally contain a large amount of dust (dust is comprised of breeze, mine smalls) from blast furnace roof coal gas out, can not directly use, because dust-laden coal gas can stop up the burner of gas line, combustion unit etc., can soft heat be bonded on heat-exchanger rig in the high-temp combustion situation simultaneously, cause thermo-efficiency to reduce, damage equipments etc. are so blast furnace gas need to be through ability second stage employ after dedusting.After traditional blast furnace gas generally passes through gravitational precipitator or tornado dust collector one-time dedusting, enter sack cleaner (dry method) and carry out final dusting, or adopt washing type (wet method) final dusting, then the purified gas that meets respective standard is reclaimed.But no matter be dry method dust or wet dedusting, its dust removal installation volume is all very huge, needs larger layout place, and piping arrangement is complicated, and the investment of equipment, running cost are all very high.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of blast furnace gas dust remover, overcome above-mentioned weak point, it is simple in structure, has reduced equipment volume, reduces investment running cost.
The invention discloses a kind of blast furnace gas dust remover, comprise dust-removing box and be arranged on the interior strainer of dust-removing box, described dust-removing box is provided with inlet mouth and air outlet, described strainer is provided with at least 1 layer of filtering layer, described filtering layer is provided with for the anti-blowpipe of removing the filtering layer dust stratification near air outlet one side, and described anti-blowpipe nozzle is towards the inlet mouth direction.
Further, described dust-removing box bottom is provided with at least 1 ash discharging hole, and described ash discharging hole is connected with ash releasing tube, and described ash releasing tube is provided with ash-valve.
Further, described inlet mouth is provided with suction flange, and described air outlet is provided with discharge flange.
Further, described filtering layer in the filtering layer of arranging net, PP fibrous filter layer or glass fibre filtering layer any one.
Beneficial effect of the present invention is: blast furnace gas dust remover of the present invention, directly be connected with blast furnace gas pipeline, dust-laden coal gas in blast furnace gas pipeline enters into dust-removing box from inlet mouth, by the strainer in dust-removing box, with a large amount of dust-filterings wherein, obtain pure coal gas and be transported to elsewhere from the air outlet; Anti-blowpipe has reduced production cost to the cleaning of jetting of the dust on strainer the work-ing life of having improved strainer, has alleviated guardian's labour intensity; Volume of the present invention is little, and is simple in structure, convenient for installation and maintenance, reduced floor space and investment running cost.
Description of drawings
For the purpose, technical scheme and the advantage that make invention is clearer, the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in the figure, blast furnace gas dust remover of the present invention, comprise dust-removing box 1 and be arranged on the interior strainer of dust-removing box 1, described dust-removing box 1 is provided with inlet mouth 2 and air outlet 3, inlet mouth 2 is connected with the air outlet and directly is connected with blast furnace gas pipeline, dust in blast furnace gas pipeline then is transported to elsewhere after dust-removing box 1 filters; Described strainer is provided with 6 layers of filtering layer 4, and bed filtration layer 4 can effectively filter out the various dust in coal gas; Described filtering layer 4 is provided with for the anti-blowpipe 5 of removing filtering layer 4 dust stratifications near air outlet 3 one sides, described anti-blowpipe 5 nozzles are towards inlet mouth 2 directions, after using for some time, the dust that filtering layer 4 will be filtered stops up, utilize 5 pairs of filtering layers 4 of reverse anti-blowpipe to jet, dust on cleaning filtering layer 4 in the work-ing life of having improved filtering layer 4, has alleviated guardian's labour intensity.
In the present embodiment, described dust-removing box 2 bottoms are provided with 6 ash discharging holes 6, and described ash discharging hole 6 is connected with ash releasing tube 7, and described ash releasing tube 7 is provided with ash-valve 8, regularly controls ash-valve 8, and the dust after filtration is discharged by ash discharging hole 6.
In the present embodiment, described inlet mouth 2 is provided with suction flange 9, and described air outlet 3 is provided with discharge flange 10, adopts flange to be connected with blast furnace gas pipeline, conveniently blast furnace gas dust remover of the present invention is safeguarded.
In the present embodiment, described filtering layer 4 is the filtering layer of arranging net, and can effectively filter out dust.
Blast furnace gas dust remover of the present invention according to different coal gas amounts and dustiness situation, can be installed one or more blast furnace gas dust removers of the present invention to form the dedusting array on gas line.Dust-laden coal gas in blast furnace gas pipeline enters into dust-removing box 1 from inlet mouth 2, by the strainer in dust-removing box 1, with a large amount of dust-filterings wherein, obtains pure coal gas and 3 is transported to elsewhere from the air outlet.Volume of the present invention is little, and is simple in structure, convenient for installation and maintenance, reduced floor space and investment running cost.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although by invention has been described with reference to the preferred embodiments of the present invention, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present invention that appended claims limits.