CN2250201Y - Multiple tube centrifugal dust remover - Google Patents

Abstract

The utility model relates to a multiple tube centrifugal dust remover, which is composed of an air inlet distribution chamber with an air inlet, an air outlet distribution chamber with an air outlet, a dust collecting bucket, centrifugal drums, a guide vane, and an exhaust pipe. The centrifugal drums are uniformly distributed on the bottom wall surface of the air inlet distribution chamber with an air inlet, the upper mouths of the centrifugal drums are arranged in the air inlet distribution chamber, and the lower mouths of the centrifugal drums are arranged in dust collecting bucket. One end of the exhaust pipe is arranged in the centrifugal drums, and the other end of the exhaust pipe is extended into the air outlet distribution chamber through the air inlet distribution chamber. The guide vane is of a spiral shape and is fixedly connected to the exhaust pipe. The outer margin of the guide vane has a gap with the inner wall surface of the centrifugal drums, and the width of the gap is smaller than 1 mm. The utility model has the advantages of high dust removing efficiency (the dust removing efficiency can reach more than 94%), stable operation, reliable dust removing effect, no blockage of the dust collecting bucket, no ash deposition of the dust collecting bucket, small size, light weight, and long service life.

Description

The multitube centrifugal dust collector

The utility model relates to a kind of centrifugal dust arrester.

Centrifugal dust collector is used in various industry kiln, stove and the process units more, reduce or eliminate of the pollution of discharging flue gas in order to separate, to remove in the flue gas harmful dust environment, atmosphere, or useful dust catching in the air-flow reclaimed to reduce loss of material, to improve yield, reduce production costs.The multitube that is widely used at present in various industry kiln, stove and the tooling device is executed the wind deduster because dust-contained airflow tangential inlet area is little, thereby dust removing effects is undesirable, still contains volume of smoke in the discharged flue gas, and boiler exhaust gas still has the over-emitting black exhaust phenomenon.Except above-mentioned points, its dust removing effects is undesirable also because deduster is decomposed into radial and axial two branches speed air-flow after descending dust-contained airflow tangentially to enter deduster in working order, axially divide air-flow often to disturb to radially dividing air-flow to produce, make and occur eddy current in the deduster and turbulent flow is lost portion of energy, slackened the centrifugation of radially dividing air-flow, make simultaneously fine dusts under eddy current and action of turbulent flow, be brought to low-pressure area the centre and with the exhaust jet stream emptying.In addition, existing multicyclone flue-dust retainer conical section angle is big, the dirty not smooth often blockage phenomenon of the ash that falls, this has not only influenced the normal use of deduster, and because the heap of dust, deduster takes place to flow backwards at negative-pressure operation situation lower part dust and with the exhaust jet stream emptying deduster dust removing effects is descended.

The purpose of this utility model provides a kind of efficiency of dust collection height, and dust removing effects is stable, reliable, and the ash that falls is difficult for stopping up, and guarantees the normal multitube centrifugal dust collector that uses.

The multitube centrifugal dust collector is by the air inlet gas distributing chamber that has air inlet, and the gas distributing chamber of giving vent to anger, flue-dust retainer, concentrator bowl, guide vane, the blast pipe that have the gas outlet constitute.Centrifuge tube top is taper for the cylindricality bottom, and the gas distributing chamber of giving vent to anger is positioned at air inlet gas distributing chamber top.Concentrator bowl is uniform along air inlet gas distributing chamber diapire face, and its upper port is positioned at air inlet gas distributing chamber, and lower port is positioned at flue-dust retainer, and concentrator bowl connects with air inlet gas distributing chamber diapire face, flue-dust retainer cover plate for sealing.Blast pipe one end stretches in the concentrator bowl other end and passes air inlet gas distributing chamber and stretch in the gas distributing chamber of giving vent to anger and with the gas distributing chamber's diapire face of giving vent to anger and be tightly connected.Guide vane is a spirality, is loaded in the concentrator bowl cylinder chamber and with blast pipe to fixedly connected, and the gap is less than 1 millimeter between guide vane outer rim and concentrator bowl inwall.

Further improving of multitube centrifugal dust collector is that the flue-dust retainer cover plate has and the whole lattice plate that is connected of cover plate internal face, and the lattice plate is separated from each other each concentrator bowl lower port to prevent its interference of collaborating mutually.Flue-dust retainer taper wall and horizontal sextant angle are 60 °, and the guide vane helical axis is 25-30 ° to angle.

The multitube centrifugal dust collector has been eliminated the weak point that existing multicyclone exists, and the efficiency of dust collection height can reach more than 94%, and dust emission concentration is lower than 100mg/N.M, and lingemann blackness is less than 1 grade.Dust removing effects is stable, reliable, the flue-dust retainer no clogging of ash that falls.The deduster volume is little, and is in light weight, and cost is low, long service life.

Accompanying drawing is an embodiment of the present utility model, further specifies the utility model below in conjunction with embodiment.

Fig. 1 is a multitube centrifugal dust collector structure chart.

As shown in the figure, the multitube centrifugal dust collector is concentrator bowl (8), guide vane (9), blast pipe (12) formation of taper for the cylindricality bottom by the air inlet gas distributing chamber (11) that brings gas port (1) into, the gas distributing chamber of giving vent to anger (13) that has gas outlet (14), flue-dust retainer (5), top, the gas distributing chamber of giving vent to anger is positioned at air inlet gas distributing chamber top, concentrator bowl is uniform along air inlet gas distributing chamber diapire face, and the upper and lower port of contiguous concentrator bowl has annular shoulder (10), (7).The concentrator bowl upper port stretches into air inlet gas distributing chamber lower port and stretches into flue-dust retainer, and upper and lower annular shoulder and air inlet gas distributing chamber diapire face, flue-dust retainer cover plate closely contact sealed attachment concentrator bowl is fixed.The clamping force-applying piece (3) that is made of bolt, nut is arranged between concentrator bowl, and to prevent air inlet gas distributing chamber diapire face, flue-dust retainer cover plate distortion interface is revealed.Blast pipe one end stretches into its other end of concentrator bowl and passes air inlet gas distributing chamber and stretch into the gas distributing chamber and be tightly connected with the gas distributing chamber's diapire face of giving vent to anger of giving vent to anger.Guide vane is a spirality, and helical axis is 25-30 ° to angle.Guide vane is loaded in the concentrator bowl cylinder chamber and with blast pipe fixedlys connected, and the gap is less than 1 millimeter between guide vane outer rim and concentrator bowl internal face, and concentrator bowl has guard shield (2), and guard shield is fixedlyed connected with air inlet gas distributing chamber, flue-dust retainer.The flue-dust retainer cover plate has and the whole lattice plate (6) that is connected of internal face, the lattice plate with each concentrator bowl end opening barrier to prevent the interference effect dust removing effects of collaborating mutually.Flue-dust retainer taper wall and horizontal sextant angle are 60 °, so that ash discharge unobstructedly prevents collection ash, stops up, deduster is supported by leg (4).

Claims (2)

1, a kind of multitube centrifugal dust collector, it is characterized in that by the air inlet gas distributing chamber that brings gas port into, the gas distributing chamber of giving vent to anger that has the gas outlet, flue-dust retainer, top is the concentrator bowl of taper for the cylindricality bottom, guide vane, blast pipe constitutes, concentrator bowl is uniform along air inlet gas distributing chamber diapire face, its upper port is positioned at air inlet gas distributing chamber lower port and is positioned at flue-dust retainer, concentrator bowl and air inlet gas distributing chamber diapire face, the flue-dust retainer cover plate for sealing connects, blast pipe one end stretches in the concentrator bowl its other end and passes air inlet gas distributing chamber and stretch in the gas distributing chamber of giving vent to anger and with the gas distributing chamber's diapire face of giving vent to anger and be tightly connected, guide vane is a spirality, be loaded in the concentrator bowl cylinder chamber and with blast pipe and fixedly connected, the gap is less than 1 millimeter between guide vane outer rim and concentrator bowl internal face.

2, by the described multitube centrifugal dust collector of claim 1, it is characterized in that the flue-dust retainer cover plate has and the whole lattice plate that is connected of cover plate internal face, the lattice plate is separated from each other each concentrator bowl lower port, and flue-dust retainer taper wall and horizontal sextant angle are 60 °, and the guide vane helical axis is 25-30 ° to angle.