CN101530702A

CN101530702A - Attic type gravity dust collector

Info

Publication number: CN101530702A
Application number: CN200810014358A
Authority: CN
Inventors: 倪桂龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-10
Filing date: 2008-03-10
Publication date: 2009-09-16
Anticipated expiration: 2028-03-10
Also published as: CN101530702B

Abstract

The invention discloses an attic type gravity dust collector which consists of a settling chamber and a soot cleaning car. The gravity dust collector is characterized in that the settling chamber is installed on the house beam of a workshop building and composed of a circumferentially closed metal head cover and a bottom consisting of clapboard type filter group, and the soot cleaning car is installed on the track of a crane and provided with a soot cleaning car touch wheel. The attic type gravity dust collector has the advantages that the metallic structure is high temperature resistant; the soot self circulation is completed by using the soot temperature difference as dynamic force; the higher the soot temperature, the better the dust removing effect; the soot can enter the dust collector for treatment without cooling and has small volume; the dust content is high, the dust removing efficiency is high and the exhaust soot amount is small; the dust collector is installed in the air of the workshop building with compact structure and no land occupying; the soot cleaning is carried out mechanically without maintenance management by specially-assigned persons; the disposable investment is small; the operating cost is low with economy and practicability, and the energy-saving and emission-reduction effect is obvious; and the utility value of the recovered dust is high and the recovery period of the invested capital is short.

Description

Attic type gravity dust collector

Technical field

The present invention relates to a kind of deduster, specifically be used to handle the attic type gravity dust collector of stove high-temperature smoke.

Background technology

Stove flue ash cleaning and dust removing device has many deficiencies at present, and mainly contain: efficiency of dust collection is low, can not satisfy the requirement of existing environmental protection dust emission standard; Can only handle the flue dust in the stove, can not handle leaking into the outer flue dust of stove, on the stove of the unordered discharging of electrical arc furnace one class flue dust, can't use; Laying dust can only the labor cleaning in the gravity settling chamber, can't the mechanization operation.

Summary of the invention

The present invention is directed to the deficiency of prior art, a kind of attic type gravity dust collector that is installed on the house beam of factory building top, stove top is provided.

Technical characterictic of the present invention is that attic type gravity dust collector is made up of gravity settling chamber and deashing car two large divisions, and gravity settling chamber is installed on the house beam of factory building top, and the deashing car is installed on the factory building crane track.The gravity settling chamber bottom is made up of a plurality of rotatable clapboard type filters, the filter core dividing plate of filter becomes 20 degree angles when static with horizontal plane, high-temperature smoke enters gravity settling chamber from the gravity settling chamber bottom center through the bar of clapboard type filter seam, after the cooling again the bar seam from the clapboard type filter at gravity settling chamber edge discharge.When the filter laying dust is too much, start the deashing car and promote the clapboard type filter rotation, the filter core dividing plate becomes 70 degree angles with horizontal plane, the laying dust impouring deashing car in the bar seam is held in the ash bag.

The present invention is made up of gravity settling chamber and deashing car two large divisions.Gravity settling chamber is made up of the bottom that casting coping that seals all around and clapboard type filter group constitute.Clapboard type filter is made up of runing rest, filter core, rotation collision block, and the rotating shaft of runing rest is fixed on the bottom of top cover with clapboard type filter, and rotating shaft is stretched out header field and connected the rotation collision block, and the filter core group is installed on the runing rest.Filter core is made up of stainless steel frame and stainless steel separator, forms the slit of three mm wides between the filter core dividing plate.Be welded with locating piece on the top cover, cooperate with the rotation collision block angle between the dividing plate of clapboard type filter and the horizontal plane is fixed on 20 spends.Deashing car two ends are provided with bumps wheel, bumps the collision block that wheel promotes clapboard type filter during deashing, makes filter turn to dividing plate and becomes 70 degree angles with horizontal plane, and the dust impouring in the filter rod seam is held in the ash bag.After deashing finishes sack sealed and get final product handling.

The present invention complies with smoke dust of furnace kiln heat and rises cold inherent characteristic of falling, gravity settling chamber is changed in the air by underground, the flue dust that stove under the deduster produces need not any external force and helps, just can be smoothly enter gravity settling chamber from the central authorities of deduster, dust drops on the filter core dividing plate of filter, overflows from the filter rod seam at gravity settling chamber edge in flue gas cooling back.Flue gas part behind the cooling and purifying is discharged to the factory building top, and another part will be entered gravity settling chamber by the flue gas of heat heating back secondary, plays preventing that flue dust is to the effect of the invisible enclosure wall of diffusion all around.Clapboard type filter is installed the rotation collision block, the filter rod seam becomes 20 degree angles when static with horizontal plane, dust on the dividing plate can landing, after the deashing car bumps wheel and promotes the rotation collision block and make baffle filter rotation 50 degree, dust in the filter rod seam just can successfully pour into holding in the ash bag of deashing car, realizes the gravity settling chamber cleaning machineization.Heavy metallic dust just drops to before entering gravity settling chamber on the filter core dividing plate of filter of deduster central part in the flue dust; And the little nonmetal dust majority of proportion falls on the filter core dividing plate of filter of deduster edge, and the dust Cell and Time Distribution is stored up, and can obtain the dust of plurality of specifications different chemical composition, and this rationally utilizes dust and has created good condition.

Attic type gravity dust collector of the present invention is mainly used in the smoke dust of furnace kiln of the unordered discharging of electrical arc furnace one type high temp flue dust and administers.The attic type gravity dust collector all-metal construction is high temperature resistant, is that power is finished the flue dust self-loopa by the flue dust temperature difference, and the high more dust removing effects of flue dust temperature is good more.Flue dust need not cool off and can enter the deduster processing, and the flue dust volume is little, the dust content height, and the efficiency of dust collection height, the discharged gas fume amount is little.The aerial installation in the factory building, compact conformation does not account for the soil.The mechanization deashing does not need special messenger's maintenance management.One-time investment is little, and operating cost is low, and is economical and practical, and effects of energy saving and emission reduction is obvious.Reclaim dust value height, infusion of financial resources is short return period.Compare with the sack cleaner dust pelletizing system that generally adopts at present, adopt attic type gravity dust collector to handle the electrical arc furnace flue dust, can reduce discharged gas fume amount 90%, efflux the dust total amount and reduce 80%, reduce power consumption 99%, reduce running cost 95%, reduce floor space 100%, reduce first investment 50%.Guaranteeing will to make the electrical arc furnace smoke and dust treatment transfer the benefit type to by consumption-orientation under the fume emission dustiness prerequisite up to standard, enterprise will obtain rich profit from the utilization again of the iron dust containing that reclaims.Calculate by the ton steel, the dedusting power consumption is with decline 23KWh/ ton, and operating cost descends 15 yuan/ton, and dust utilizes 5 yuan/ton of revenue growths again, and discharged gas fume reduces 18000 cubic metres/ton, effluxes Dust Capacity and reduces 260 gram/tons.Calculate with an electrical arc furnace of producing 500000 tons of steel per year, year economize on electricity 1,150 ten thousand KWh, 1,000 ten thousand yuan of the synergy of reducing expenditure, the discharged gas fume amount reduces 90 billion cubic meters, effluxes Dust Capacity and reduces 130 tons.

Description of drawings

Accompanying drawing 1 is a front view of the present invention.

Accompanying drawing 2 is a vertical view of the present invention.

Accompanying drawing 3 is the front view of core component filter core of the present invention.

Accompanying drawing 4 is the vertical view of core component filter core of the present invention.

Among the figure: 1, clapboard type filter, 2, the clapboard type filter rotating shaft, 3, clapboard type filter rotation collision block, 4, the gravity settling chamber loam cake, 5, gravity settling chamber, 6, locating piece.7, deashing car, 8, the deashing car bumps wheel, 9, the filter core framework, 10, the filter core dividing plate, 11, filter core bar seam.

The specific embodiment

As shown in the figure: a kind of attic type gravity dust collector of electrical arc furnace special use, form by the gravity settling chamber (5) of the metal structure that is installed in factory building top, electrical arc furnace top and deashing car (7) two large divisions who is installed on the interior crane track of factory building.The bottom that it is characterized in that being fixed on the gravity settling chamber (5) of the metal structure on the factory building house beam is made up of one group of clapboard type filter that can fascinate (1).Clapboard type filter (1) is connected with gravity settling chamber loam cake (4) by clapboard type filter rotating shaft (2).Clapboard type filter rotating shaft (2) is connected with clapboard type filter rotation collision block (3) in the outside of gravity settling chamber loam cake (4).Filter core dividing plate (10) is fixed on the filter core framework (9), forms the filter core bar seam (11) of three mm wides between the filter core dividing plate (10).Filter core framework (9) is fixed on the clapboard type filter (1), and angle is 20 to spend when clapboard type filter rotation collision block (3) cooperates filter core dividing plate (10) static state that makes clapboard type filter (1) with locating piece (6) and between the horizontal plane.Deashing car (7) is installed on the crane track, and deashing car (7) is provided with the deashing car and bumps wheel (8).Clapboard type filter (1) rotation when the deashing car bumps wheel (8) promotion clapboard type filter rotation collision block (3), angle strengthens between the filter core dividing plate (10) of clapboard type filter (1) and the horizontal plane, and maximum angle is 70 degree.

The operation principle of the attic type gravity dust collector of electrical arc furnace special use is: the dust-laden high-temperature flue gas that electrical arc furnace produces stitches (11) by intrinsic heat power from the bottom center of gravity settling chamber (5) the filter core bar by clapboard type filter (1) and enters gravity settling chamber (5), the heavy metal soot dust granule drops on by gravity on the filter core dividing plate (10) of filter in the traveling process, and nonmetal light grains enters gravity settling chamber (5) inside with flue gas.High-temperature flue gas is diffusion and by gravity settling chamber loam cake (4) radiating and cooling around the mediad at the top of gravity settling chamber (5).Cooled flue dust constantly sinks and enters the filter core bar seam (11) of the clapboard type filter (1) of gravity settling chamber (5) marginal portion, nonmetal light grains drops on the filter core dividing plate (10) of filter in the flue dust, the filter core dividing plate (10) of filter is 20 degree with the angle of horizontal plane, be far smaller than the stocking angle of dust, on the filter core dividing plate (10) that rests on filter that dust can be stable.Flue gas behind the cooling and purifying is discharged from the bottom of gravity settling chamber (5), the purification flue gas of marginal portion is discharged to the factory building top around gravity settling chamber (5), the purification flue gas of close middle body is as preventing that the enclosure wall of high-temperature flue gas to diffusion all around from being entered gravity settling chamber (5) by high-temperature flue gas heating winding secondary.Accelerate the landing of dust after the laying dust by the collision of the attraction between the dust, efficiency of dust collection improves, but must carry out deashing when filter core bar seam (11) dust stratification too much will influence entering of flue dust.Slowly starting deashing car (7) during deashing makes the deashing car bump wheel (8) promotion clapboard type filter rotation collision block (3) with clapboard type filter (1) rotation 50 degree, make that angle reaches 70 degree between the filter core dividing plate (10) of clapboard type filter (1) and the horizontal plane, be far longer than the slide angle of dust, the dust on the filter core dividing plate (10) will be poured holding in the ash bag of deashing car (7) smoothly into.Gravity settling chamber (5) middle body and peripheral part be deashing respectively, will obtain highly purified iron dust containing.

Claims

1, a kind of attic type gravity dust collector is made up of the gravity settling chamber (5) of the metal structure that is installed in factory building top, electrical arc furnace top and deashing car (7) two large divisions who is installed on the interior crane track of factory building.The bottom that it is characterized in that being fixed on the gravity settling chamber (5) of the metal structure on the factory building house beam is made up of one group of clapboard type filter that can fascinate (1).Clapboard type filter (1) is connected with gravity settling chamber loam cake (4) by clapboard type filter rotating shaft (2).Clapboard type filter rotating shaft (2) is connected with clapboard type filter rotation collision block (3) in the outside of gravity settling chamber loam cake (4).

2, attic type gravity dust collector according to claim 1 is characterized in that filter core dividing plate (10) is fixed on the filter core framework (9), forms the filter core bar seam (11) of three mm wides between the filter core dividing plate.Filter core framework (9) is fixed on the clapboard type filter (1), and angle is 20 to spend when clapboard type filter rotation collision block (3) cooperates filter core dividing plate (10) static state that makes clapboard type filter (1) with locating piece (6) and between the horizontal plane.

3, attic type gravity dust collector according to claim 1 is characterized in that deashing car (7) is installed on the crane track, and deashing car (7) is provided with the deashing car and bumps wheel (8).Clapboard type filter (1) rotation when the deashing car bumps wheel (8) promotion clapboard type filter rotation collision block (3), angle strengthens between the filter core dividing plate (10) of clapboard type filter (1) and the horizontal plane, and maximum angle is 70 degree.