CN201179392Y

CN201179392Y - Improved upper-gas-intake blast furnace cloth bag dust remover

Info

Publication number: CN201179392Y
Application number: CNU2008200979680U
Authority: CN
Inventors: 陈永伦; 黎明; 刘川全; 陈谋
Original assignee: Chongqing Iron and Steel Group Co Ltd
Current assignee: Chongqing Iron and Steel Group Co Ltd
Priority date: 2008-04-02
Filing date: 2008-04-02
Publication date: 2009-01-14
Anticipated expiration: 2018-04-02

Abstract

The utility model discloses an improved upside-air-intake-type blast furnace cloth-bag deduster which comprises a machine wall, an air intake pipe, an air exhaustion pipe, a cloth bag and a dust hopper. The air intake pipe vertically enters the dust hopper, the outlet of the air intake pipe is provided with a syphon, the included angle Alpha between the syphon and the air exhaustion direction of the air intake pipe ranges from 30 to 90 degrees. The deduster can prevent the air outlet of the air intake pipe from stirring the dust accumulated in the dust hopper, thereby ensuring the dedusting effect and simultaneously reducing the abrasion speed of the cloth bag, prolonging the service life and reducing the production cost.

Description

The improved air admission type bf bag filter of going up

Technical field

The utility model relates to a kind of bf bag filter, particularly a kind of improved air admission type bf bag filter of going up.

Background technology

To be dusty gas enter each locellus ash bucket from the air intake current-sharing pipe of deduster to the working mechanism of bf bag filter, and under the water conservancy diversion of ash bucket guiding device, oarse-grained dust is separated, directly fall into ash bucket, and enter middle part casing and being adsorbed on the outer surface of filter bag equably than fine dust, clean gas sees through filter bag and enters upper box, and behind each off-line valve, open automatically controlled pulse valve by setup program, carry out the blowing-out winding-up, utilize the winding-up of compressed air moment that the filter bag internal pressure is increased severely, the dust on the filter bag is waken up with a start (even sticking fine dust also deashing) more up hill and dale and to ash bucket, discharge by ash exhauster.The gas of last air admission type sack cleaner is entered by the direction perpendicular to ash bucket, and dust stratification stirring in the ash bucket is rolled in gas direct injection ash bucket bottom, influences the filter effect of deduster.Simultaneously, acutely rolling of dust stratification increases the contact friction of dust stratification particle and cloth bag, causes the wearing and tearing of cloth bag, quickens the breakage of cloth bag, reduces the service life of cloth bag, increases the operation and maintenance cost.

Therefore, need transform, when can guarantee dust removing effects, slow down the rate of wear of cloth bag, increase the service life, reduce production costs last air admission type sack cleaner.

The utility model content

In view of this, the purpose of this utility model provides a kind of improved air admission type bf bag filter of going up, and can avoid the stirring of the gas outlet of air inlet pipe to dust stratification in the ash bucket, when guaranteeing dust removing effects, slow down the rate of wear of cloth bag, increase the service life, reduce production costs.

The improved air admission type bf bag filter of going up of the present utility model, comprise wall, air inlet pipe, escape pipe, cloth bag and ash bucket, described air inlet pipe vertically enters ash bucket, and described air inlet pipe outlet is provided with bend pipe, and the angle α between bend pipe and the air inlet pipe outgassing direction is 30 °-90 °.

Further, the angle α between described bend pipe and the air inlet pipe outgassing direction is 60 °;

Further, described bend pipe is 120 ° of standard elbows.

The beneficial effects of the utility model are: the improved air admission type bf bag filter of going up of the present utility model, outlet in air inlet pipe is provided with bend pipe, can avoid of the stirring of the gas outlet of air inlet pipe to dust stratification in the ash bucket, when guaranteeing dust removing effects, slow down the rate of wear of cloth bag, increase the service life, reduce production costs; Bend pipe adopts the standard elbow, installs simple and conveniently, saves time, and reduces and overhauls and improvement cost.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 transforms the pre-structure schematic diagram for the utility model;

Fig. 2 is a structural representation after the utility model transformation.

The specific embodiment

Fig. 1 transforms the pre-structure schematic diagram for the utility model, as shown in the figure: the last air admission type bf bag filter before transforming, comprise wall 1, air inlet pipe 3, escape pipe 2, cloth bag 4 and ash bucket 5, air inlet pipe 3 vertically enters ash bucket 5, directly jet to dust stratification in the gas outlet, the dust stratification of stirring causes wearing and tearing to not being with.

Fig. 2 is a structural representation after the utility model transformation, as shown in the figure: the improved air admission type bf bag filter of going up, comprise wall 1, air inlet pipe 3, escape pipe 2, cloth bag 4 and ash bucket 5, air inlet pipe 3 vertically enters ash bucket 5, be provided with bend pipe 6 in air inlet pipe 3 outlets, angle α between bend pipe 6 and air inlet pipe 3 outgassing directions is 60 °, bend pipe 6 is 120 ° of standard elbows, the angle that utilizes the standard elbow is 120 °, after the installation, guarantee that the angle α between bend pipe 6 and air inlet pipe 3 outgassing directions is 60 °.The air inlet dust stratification of in ash bucket 5, no longer jetting, but aim at grey headwall winding-up, avoid because the dust stratification that the gas winding-up causes stirs, thereby prevent the cloth bag wearing and tearing.

Certainly, the angle α between bend pipe 6 and air inlet pipe 3 outgassing directions is not limited to 60 °, can be any numerical value in 30 °-90 °, can both reach the purpose of this utility model.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. improved air admission type bf bag filter of going up, comprise wall (1), air inlet pipe (3), escape pipe (2), cloth bag (4) and ash bucket (5), described air inlet pipe (3) vertically enters ash bucket (5), it is characterized in that: described air inlet pipe (3) outlet is provided with bend pipe (6), and the angle α between bend pipe (6) and air inlet pipe (3) outgassing direction is 30 °-90 °.

2. the improved air admission type bf bag filter of going up according to claim 1, it is characterized in that: the angle α between described bend pipe (6) and air inlet pipe (3) outgassing direction is 60 °.

3. the improved air admission type bf bag filter of going up according to claim 2, it is characterized in that: described bend pipe (6) is 120 ° of standard elbows.