CN201855634U

CN201855634U - Filtration and ventilation device

Info

Publication number: CN201855634U
Application number: CN2010205356645U
Authority: CN
Inventors: 陈叶华
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-12
Filing date: 2010-09-12
Publication date: 2011-06-08
Anticipated expiration: 2020-09-12

Abstract

The utility model discloses a filtration and ventilation device which comprises a cylindrical casing, an air inlet formed at the lower end of the cylindrical casing, an air outlet formed on one side of the cylindrical casing, a driving device arranged at the upper end of the cylindrical casing, and a rotary screening tray arranged on a shaft of the driving device. The filtration and ventilation device is characterized in that a blowback air inlet is formed at the upper end of the cylindrical casing, a blowback air pipe is arranged inside the cylindrical casing, one end of the blowback air pipe is communicated with the blowback air inlet, the other end of the blowback air pipe is flattened, a material outlet is formed at the lower end of the cylindrical casing, and the material outlet is positioned below the blowback air pipe. The filtration and ventilation device can automatically clean the attachments on a screen mesh to prevent the blockage of the screen mesh, and is suitable for being used in the material drying or material air-separation equipment.

Description

A kind of filter-fan unit

Affiliated technical field:

The utility model relates to a kind of filter-fan unit.

Background technology:

At present, when thermal current convection drying material or selection by winnowing material, adopt two kinds of methods: a kind of method is that the air channel is directly connected follow-up equipment, when containing big shape floating thing in the air-flow, can increase the intractability of follow-up equipment; Another kind method is to install one not have well clear up the filter-fan unit of screen cloth function between air channel and follow-up equipment, and when containing than shape floating thing greatly in the air-flow, the adsorbate obstruction that screen cloth can constantly be accumulated causes system's pressure drag significantly to raise.

Summary of the invention:

The utility model provides a kind of filter-fan unit in order to address the above problem proposition, to its objective is, this filter-fan unit can be cleared up the adsorbate on the screen cloth automatically, and screen cloth can not stop up.

The technical scheme that adopts is: comprise cylinder blanket 1, built in the air inlet 2 of cylinder blanket 1 lower end, be installed on the axle of drive unit 4 built in the air outlet 3 of cylinder blanket 1 one sides, upper end, the rotation screen tray 5 that drive unit 4 is installed in cylinder blanket 1, it is characterized in that: the upper end of cylinder blanket 1 is shaped on blowback wind inlet 6, reverse-blow pipe 7 is installed in the cylinder blanket 1, one end of reverse-blow pipe 7 is communicated with the other end with blowback wind inlet 6 and makes flat, the lower end of cylinder blanket 1 is shaped on material outlet 8, and material outlet 8 is below reverse-blow pipe 7.

Compared with prior art, the beneficial effects of the utility model are: can clear up the adsorbate on the screen cloth automatically, screen cloth can not stop up.

Description of drawings:

Fig. 1 is the schematic diagram of filter-fan unit embodiment.

Among the figure: 1, cylinder blanket, 2, air inlet, 3, air outlet, 4, drive unit, 5, the rotation screen tray, 6, the blowback wind inlet, 7, reverse-blow pipe, 8, material outlet.

The specific embodiment:

The utility model is described in further detail below in conjunction with drawings and Examples.

As shown in Figure 1, air inlet 2 is built in the lower end of cylinder blanket 1, air outlet 3 is built in a side of cylinder blanket 1, drive unit 4 is installed in the upper end of cylinder blanket 1, rotation screen tray 5 is installed on the axle of drive unit 4, the upper end of cylinder blanket 1 is shaped on blowback wind inlet 6, reverse-blow pipe 7 is installed in the cylinder blanket 1, one end of reverse-blow pipe 7 is communicated with the other end with blowback wind inlet 6 and makes flat, the lower end of cylinder blanket 1 is shaped on material outlet 8, and material outlet 8 is below reverse-blow pipe 7.Its operation principle is: the air-flow that contains big shape floating thing enters in the cylinder blanket 1 from air inlet 2, after rotation screen tray 5 filtrations via drive unit 4 drives, discharge from air outlet 4, the high pressure cleaning blowback wind that is provided by independent high pressure positive blower enters reverse-blow pipe 7 by blowback wind inlet 6, the end of reverse-blow pipe 7 becomes flat, blowback general mood stream much larger than air inlet 2 place's air velocities blows to rotation screen tray 5 at a high speed through reverse-blow pipe 7 from top to bottom, be attached to 5 following being fallen by the blowback wind constantly of rotation screen tray after the filtration, and discharge through material outlet 8 than of the rotation of big shape floating thing along with rotation screen tray 5.

Claims

1. filter-fan unit, comprise cylinder blanket (1), air inlet (2) built in cylinder blanket (1) lower end, air outlet (3) built in cylinder blanket (1) one side, be installed in the drive unit (4) of the upper end of cylinder blanket (1), be installed in drive unit (4) the axle on rotation screen tray (5), it is characterized in that: the upper end of cylinder blanket (1) is shaped on blowback wind inlet (6), reverse-blow pipe (7) is installed in the cylinder blanket (1), one end of reverse-blow pipe (7) is communicated with the other end with blowback wind inlet (6) and makes flat, the lower end of cylinder blanket (1) is shaped on material outlet (8), and material outlet (8) is in the below of reverse-blow pipe (7).