CN2541056Y - High efficiency centrifugal duster with filter net - Google Patents

Abstract

Provided is a highly-effective centrifugal dust separator with a filter screen. The utility model is formed by additionally arranging a filter screen cylinder at the lower end of a vent discharging tube of an existing centrifugal dust separator and additionally disposing a dumping door, an electric dust-brush mechanism, a flue-dust retainer, a tiny-dust outlet tube and the like. Owing to the addition of the filter net, the dust separator enables the dust-removing efficiency to be greatly increased. Two sets of the highly-effective centrifugal dust separators with sequentially reducing hole-diameter the filter screen are serially connected to use, the dust-removing effect can meet the dust-removing needs of the majority manufacture field and domestic field at present. The utility model has the advantages of high dust-removing efficiency, simple structure, low manufacture cost, small occupied volume, energy economy, wide application, convenient installation and maintenance, low operational cost and the like. When a separator is used, the utility model can separate out more than two grain products with different sizes in one recycle process, which has practical value and important meaning in a plurality of industries.

Description

The efficient centrifugal deduster of band filter screen

The utility model relates to a kind of efficient centrifugal deduster with filter screen, it can be widely used in the dust in all trades and professions removing dust laden airs such as petrochemical industry, machinery, generating, metallurgy, mine, food, grain, cement, also can be used for some industrial enterprise that produces fine granularity or powdery product separation and contains the airborne fine granularity of material or pulverous finished product or semi-finished product.The utility model that is used to separate occasion should be whizzer.For making statement simple and clear, below mainly do explanation from the dedusting angle.

Centrifugal deduster is that a kind of centrifugal force of swirling eddy that utilizes blows to the solid particle in the dust laden air on column type or the pyramid type chamber wall, and solid particle is slided to reach a kind of machine of dedusting purpose along barrel.Centrifugal deduster has simple in structure, and cost price is cheap, and is widely applicable, uses advantages such as easy to maintenance.At home and abroad be most widely used cleaner for many years always, play a part aspect industrial production and the environmental protection very important.Its efficient can reach more than 95% when yet existing centrifugal deduster was handled dust more than 40 microns; but its efficient then can only reach about 40% when handling the dust below 5 microns, can't satisfy industrial development of advancing by leaps and bounds and the requirement on environmental protection that improves constantly already.In addition, both at home and abroad dry dust removal equipment also mainly contains two kinds in bag dust filter and electric cleaner, though these two kinds of deduster efficiency of dust collections all very high (reaching more than 99.8%), but complex structure is arranged, floor space is big, cost an arm and a leg, operating cost is high and use shortcomings such as keeping in repair complexity, so its extent of spreading amd application is very limited.

The purpose of this utility model provides and a kind ofly can satisfy the field dedusting requirement of present most of productive lifes, and is simple in structure, use easy to maintenance, the efficient centrifugal deduster of the band filter screen that cost price is cheap

The purpose of this utility model is by the exhaust duct lower end at existing centrifugal deduster screen tube to be installed, and increases the powered brush apparatus for ash, handling door, and flue-dust retainer and little grit outlet are realized.

The utility model is because installed screen tube in the exhaust duct lower end, so except big heavier grit can be removed with centrifugal principle, the grit bigger than filter screen aperture is blocked in filter screen and removes outward, is slightly less than the filter screen aperture and just can is deposited on the flue-dust retainer of screen tube bottom owing to the gravity effect and removes by little grit outlet by big heavier grit by the part of opening of sieve.Because dust-cleaning principle of the present utility model is from leaning on the centrifugal force dedusting merely, change into mainly and leaned on the filter screen dedusting, the height of efficiency of dust collection, particularly the efficiency of dust collection to tiny grit only depends on the size of selecting the filter screen aperture, need not consider air velocity during design, eddy current, the influence of factors such as turbulent flow so the comparable existing centrifugal deduster of the physical dimension of whole deduster reduces significantly, can reduce raw materials consumption, reduce occupation space, the manufacturing cost of reduction.Because the utility model increased filter screen, institute so that the machine efficiency of dust collection increase substantially.If analyze the enough tiny of filter screen selection from structural principle, then the utility model efficiency of dust collection also can reach and bag dust filter and the equal level of electric cleaner, but when practical application, because separate unit screen area of the present utility model is limited, undressed dust laden air dustiness is big, filter screen blocking rate height, can increase the pressure loss, reduce operating efficiency, even make the machine can't continuous operation, though therefore separate unit efficiency of dust collection of the present utility model is improved largely than existing centrifugal deduster, but compare quite big gap in addition with electric cleaner with bag dust filter, in order further to improve efficiency of dust collection, the use of two diminishing the utility model in above filter screen aperture can being contacted, the overwhelming majority's production that its efficiency of dust collection is enough to meet the demands not really high and the demand of sphere of life dedusting, and in the exigent occasion of dedusting, adopt the utility model of separate unit or many polyphone uses to make the primary dust removing device, do secondary ash collector with bag dust filter or electric cleaner that specification is dwindled greatly, then also can reduce floor space, reduce investment, reduce operating cost, also have suitable remarkable economic efficiency.In addition, if the utility model that separate unit or two above filter screen apertures dwindle is successively used when separator, then because inside and outside separation of material granular size difference of filter screen and filter screen aperture difference then can be isolated the different material of two or more granular sizes in a cyclic process, these are with practical value and significance in many industry production.

The utility model is removed the work of laying dust on the filter screen, finishes by the powered brush apparatus for ash.Hairbrush on the powered brush apparatus for ash of driven by motor is continual around screen tube rotation cleaning laying dust, can make the continual effective work of deduster.The powered brush apparatus for ash that the utility model adopts is much simpler than the back flushing type pulse dust cleaning structure of bag dust filter.Though and electric cleaner does not have corresponding deashing mechanism, the structure of its complete machine than the utility model complexity many.Therefore the utility model and bag dust filter compare with electric cleaner have simple in structure, advantage such as equipment price and operating cost are cheap, and it is little to take up room, energy-conservation, and widely applicable and installation and maintenance are convenient.

Be described further below in conjunction with drawings and Examples

Accompanying drawing 1 is an overall structure schematic diagram of the present utility model.

Among the figure: 1 exhaust duct, 2 blast pipes, 3 cylindrical shells, 4 handling doors, 5 screen tubes, 6 flue-dust retainers, 7 hollow shafts, 8 powered brush apparatus for ash, 9 little grit outlets, 10 plates

Accompanying drawing 2 is the utility model powered brush apparatus for ash structural representations.

Among the figure: 1 cylindrical shell, 2 hairbrush, 3 flue-dust retainers, 4 brush board framves, 5 large bevel gears, 6 cone pinions, 7 power transmission shafts, 8 reductors, 9 gear housings, 10 hollow shafts, 11 little grit outlets

As shown in Figure 1: cylindrical shell of the present utility model (3) is made up of one section conical tube in the middle of each one section cylindrical tube of two ends, circular arc handling door (4) is installed on cylindrical shell (3), in cylindrical shell (3) top great circle column casing tangential direction a cross section being arranged is rectangular blast pipe (2), there is a cylindrical shape exhaust duct (1) in the upper surface shrouding central authorities of cylindrical shell (3) top big column, a cylindric screen tube (5) is installed in lower end at exhaust duct (1), screen tube (5) bottom is equipped with powered brush apparatus for ash (8), a plate (10) is installed in the little cylinder in cylindrical shell (3) lower end, the lower end of screen tube (5) is fixed on taper flue-dust retainer (6) upper end, the upper end of hollow shaft (7) axis hole of powered brush apparatus for ash (8) gear-box is inserted in the lower end of flue-dust retainer (6), and cylindric little grit outlet (9) then is connected on the lower end of hollow shaft (7).

As shown in Figure 2: electronic brush dust of the present utility model mechanism comprises a square box shape gear housing (9) that is fixed on cylindrical shell (1) lower central position, the large bevel gear (5) that has a cone pinion (6) that links to each other by power transmission shaft (7) reductor (8) outer with being installed in cylindrical shell (1) and to be enclosed within on the hollow shaft (10) in the casing and mesh with cone pinion (6).The brush board frame (4) of doorframe shape is fixed on large bevel gear (5) through on gear housing (9) upper surface in addition, strip hairbrush (2) then is fixed on the brush board frame (4), and upper end, the hole of hollow shaft (10) hollow links to each other with flue-dust retainer (3), the lower end links to each other with little grit outlet (11), makes it have support large bevel gear (5) simultaneously and provides the passing away dual-use function for little grit.The work of electronic brush dust mechanism is to drive power transmission shaft (7) successively by reductor (8), and cone pinion (6), large bevel gear (5), brush board frame (4) and hairbrush (2) rotate to be finished.

As shown in Figure 1: dust laden air enters cylindrical shell (3) by blast pipe (2) during the utility model work, the big heavier dust that contains in the air can fall along barrel owing to centrifugal action, the residue particle diameter is blocked in outside the filter screen greater than the grit in filter screen aperture, grit less than the filter screen aperture passes filter screen, wherein the big heavier grit of a part is fallen owing to the gravity effect in the flue-dust retainer (6) of screen tube (5) lower end and is also fallen by little grit outlet (9), the littler the utility model in filter screen aperture is discharged or entered to all the other littler lighter dust then with air from exhaust duct (1), also can enter further dedusting in bag dust filter or the electric cleaner.Meanwhile, be that the hairbrush on the powered brush apparatus for ash (8) of power does not stop rotation with the electric reducer, brush away the dust that sticks on the screen tube (5), prevent that filter screen from blocking, and guarantees the continuous operate as normal of the utility model.The function that is positioned at the plate (10) of cylindrical shell (3) lower end is that the end opening that guarantees cylindrical shell (3) and little grit outlet (9) only allows dust to discharge, do not allow air to enter cylindrical shell (3) thus, can replace with devices such as airtight container with same function or wind sheltering devices in case of necessity.Handling door (4) is when supplying installation and maintenance equipment, the screen tube (5) in the dismounting cylindrical shell (3), flue-dust retainer (6), powered brush apparatus for ash (8) and little grit outlet usefulness such as (9).

The utility model when separator with and when needing by particle size classification collection material, should be as shown in Figure 2, make little grit outlet pass cylindrical shell and outlet is arranged on collects small particles material outside the cylindrical shell.Both can otherwise all as shown in Figure 1 dust inside and outside the screen tube is pooled together.

Claims (3)

1, a kind of efficient centrifugal deduster with filter screen, it is connect the cylindric cylindrical shell of a bit of conically shaped and small cylindrical tube by a bottom, one is installed in tangential direction cross section, cylindrical shell top is rectangular blast pipe, a cylindric exhaust duct and a composition such as plate that is installed in the little cylinder in cylindrical shell lower end that is installed in cylindrical shell upper surface middle position, it is characterized in that on cylindrical shell, being equipped with the circular arc handling door, in the exhaust duct lower end circle tube leaching net tube is installed, screen tube is fixed on conical flue-dust retainer upper end, the powered brush apparatus for ash has been installed in the screen tube below, insert in the hollow shaft upper end hole of powered brush apparatus for ash gear-box the lower end of flue-dust retainer, and the little grit outlet of pipe shape then is installed under the electronic brush dust organization gear case hollow shaft outside the stomidium.

2, the efficient centrifugal deduster of band filter screen according to claim 1, it is characterized in that screen tube covers on the cylindrical metal framework with screen cloth makes, the material aperture of screen cloth should be according to being cleared up dust character, content, granular size, and the temperature of medium, humidity, the factors such as requirement of acid-base value and dust removing effects are determined.

3, the efficient centrifugal deduster of band filter screen according to claim 1, it is characterized in that, the structure of powered brush apparatus for ash is as follows: a square box shape gear housing that is fixed on cylindrical shell lower central position, the large bevel gear that has a cone pinion that links to each other by the power transmission shaft reductor outer and one to be enclosed within on the hollow shaft in the casing and mesh with cone pinion with being installed in cylindrical shell, the brush board frame of doorframe shape is fixed on large bevel gear through on the upper surface beyond the gear housing, the strip hairbrush then is fixed on the brush board frame, and upper end, the hole of hollow shaft hollow links to each other with flue-dust retainer, and the lower end links to each other with little grit outlet.

Images