CN2538404Y

CN2538404Y - Self-sucking reverse-blowing dust cleaning bag type duster

Info

Publication number: CN2538404Y
Application number: CN 02202049
Authority: CN
Inventors: 惠德跃
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-15
Filing date: 2002-01-15
Publication date: 2003-03-05
Anticipated expiration: 2012-01-15

Abstract

A self-absorption reverse jet bag deduster is provided, which adopts the control methods that a self-absorption valve, an air inlet valve and an air outlet valve move continuously relative to each other and the switch is reverse. A reverse jet flow is formed through a filter bag wall by that the dusty airflow in an air inlet pipeline aspirates the air in the filter bag chamber through a self-absorption pipeline to reach the aim of reverse jet dedusting without high pressure blower. The utility model is characterized by small power consumption, long life of filter bag and no secondary dust in the bag, which is applicable for the manufacture of novel dedusters and improvement of old dedusters.

Description

A kind of self-priming reverse gas cleaning sack cleaner

The utility model relates to the improvement of sack cleaner reverse gas cleaning system.

At present, the air-flow reverse gas cleaning sack cleaner of domestic employing generally all is furnished with special-purpose high pressure back blowing machine, and to the indoor reverse blowing of filter bag, absorption is accumulated in the dust on the filter bag wall when removing forward filter by reverse gas cleaning pipeline and valve.Not only increased the electric energy loss of cleaner, and blowback air fails to be convened for lack of a quorum and cause filter bag swing, cause the wearing and tearing of sack hitching position, also can cause a bag interior dust secondary fly-up service life of reducing filter bag, increased the weight of the work load of deduster.

It is a kind of without the high pressure back blowing machine that the purpose of this utility model is to provide, and can avoid the sack wearing and tearing, prolongs life-span of the filter bag, and prevent the self-priming reverse gas cleaning sack cleaner of bag interior dust secondary fly-up.

The utility model is to adopt following scheme to realize: its overall structure is by being formed with dust removing units superimposed about inlet plenum, filter bag chamber, ash bucket, the frame and the pipe valve that is attached thereto more than two.Each inlet plenum by several intake valves with directly over admission line communicate; The self-priming pipeline that is positioned at the air inlet pipe one or both sides is " J " type, and its straight tube one end and pipe shaft thereof communicate with each above the inlet plenum or side by several self-priming valves, and the oblique perforation of direction of air-flow is pressed at an end of its bend pipe and the air inlet place of admission line; Bottom in each filter bag chamber one side communicates with discharge duct by several air bleeding valves.

Describe solution of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is a general structure schematic diagram of the present utility model;

Fig. 2 is the schematic top plan view that the self-priming pipeline is connected with admission line in the structural representation shown in Figure 1.

Relatively independent by the dust removing units that inlet plenum 5, filter bag chamber 6, ash bucket 7 and frame 11 are superimposed from top to bottom, structure is identical, removes outside the pipe valve, and is not connected.Should select plural dust removing units combined according to the concrete size of removing dust quantity during manufacturing, to realize uninterrupted dedusting and the job requirement of pursuing the chamber deashing.Adopt upper and lower two cards 12 to cut off between inlet plenum 5, filter bag chamber 6 and the ash bucket 7, link to each other by the some filter bags 13 that hang between the card, be used for isolated by filtration dust and air-flow.Ash bucket 7 is tapered, and end opening is equipped with ash-valve 10, is used for the control of dust ash discharge.Opening directly over the inlet plenum 5 communicates with tapered admission line 3 by several intake valves 4.The air inlet place of admission line 3 is thicker, external dust-laden source of the gas, and along with the extension to each inlet plenum 5, pipe shaft attenuates, and is assigned to each dust removing units uniformly in the hope of dust.Self-priming pipeline 1 diameter is " J " shape less than admission line 3, can adopt one, is positioned at a side of admission line 3, also can adopt two, lays respectively at the both sides of admission line 3; One end of its straight tube and pipe shaft part thereof communicate with the top of each inlet plenum 5 or its side by several self-priming valves 2, and the oblique perforation of direction of air-flow is pressed at an end of its bend pipe and the air inlet place of admission line 3.Filter bag chamber 6 is a rectangular box, and annexes such as access door are equipped with in the side, so that check and change damaged filter bag; Be equipped with the lower openings of filter bag chamber, communicate with a discharge duct 9 by several air bleeding valves 8.Discharge duct 9 is tapered, and inlet end is thin, and the outlet side is thick, external exhaust blower exhaust.

The utility model is a full steel structure, the additional lightweight rock cotton board insulation in the shell body place of inlet plenum 5 and filter bag chamber 6.Intake valve 4 and air bleeding valve 8 are open type, help the deduster operate as normal.Self-priming valve 2 and ash-valve 10 are closed type, only just open separately when needs deashing or ash discharge.All by the mutual interlock of electrical control, switch is opposite for self-priming valve 2 and intake valve 4, air bleeding valve 8.

During work, the dust-laden source of the gas externally under the ordering about of power, enters inlet plenum 5 and filter bag chamber 6 along admission line 3, intake valve 4, and under the effect of filter bag 13, air-flow and dust are separated.Air-flow passes the filter bag wall and discharges through air bleeding valve 8 and blast pipe 9 downwards, and the most dust under the filter directly gathers under the gravity effect in the ash bucket 7, discharges through ash-valve 10.The minority dust is adsorbed on the filter bag wall, and is As time goes on long-pending more thick more, and when having influence on this dust removing units operate as normal, automatic electrical control system begins action.The self-priming valve 2 of this unit is opened, and intake valve 4 and air bleeding valve 8 are closed simultaneously, and dust-contained airflow must not enter, and discharges and concentrate through other dust removing units.Air in this unit (mainly being filter bag chamber 6) upwards flows through filter bag 13, inlet plenum 5, self-priming valve 2 and self-priming pipeline 1 under the suction of admission line 3 high speed dust-contained airflows, forms uniform reverse gas cleaning air-flow.13 of filter bags in this unit extreme expansion during by original dedusting changes into does one's utmost to shrink, and is adsorbed on dust on the filter bag wall under the effect of back draught and gravity, breaks away from filter bag, falls into ash bucket 7 and is discharged from.Owing to do not have external uneven back draught effect,, can not cause sack wearing and tearing and dust secondary fly-up so the filter bag 13 that hangs can not rock.Behind deashing after a while, under the driving of automatic electrical control system, self-priming valve 2 is closed, and intake valve 4 and air bleeding valve 8 are opened simultaneously, and dust-contained airflow returns to this dust removing units.And other dust removing units also will repeat above deashing process successively, and so circulation goes round and begins again.

For ease of control and manufacturing, the self-priming valve 2 in the utility model, intake valve 4 and air bleeding valve 8 all adopt can be around the butterfly valve of own central shaft upset.Be to reduce manufacturing cost, the utility model when global design, preferentially adopt a self-priming pipeline 1 and discharge duct 9 with respect to dust removing units be one on the other, the version on the first from left right side.

Claims

1, a kind of self-priming reverse gas cleaning sack cleaner, by being formed with superimposed up and down dust removing units of inlet plenum, filter bag chamber, ash bucket, frame and the pipe valve that is attached thereto more than two, it is characterized in that: each inlet plenum (5) by several intake valves (4) with directly over admission line (3) communicate; The self-priming pipeline (1) that is positioned at admission line (3) one sides or two sides is " J " type, one end of its straight tube and pipe shaft thereof communicate by the top or side of several self-priming valves (2) with each inlet plenum (5), and the oblique perforation of direction of air-flow is pressed at the air inlet place of an end of its bend pipe and admission line (3); Bottom in each filter bag chamber (6) one side communicates with discharge duct (9) by several air bleeding valves (8).

2, sack cleaner according to claim 1 is characterized in that: self-priming valve (2) and intake valve (4), air bleeding valve (8), and by the mutual interlock of electrical control, switch is opposite; Be self-priming valve (2) when opening, intake valve (4) and air bleeding valve (8) are closed simultaneously; Self-priming valve (2) is when closing, and intake valve (4) and air bleeding valve (8) are opened simultaneously.

3, sack cleaner according to claim 1 is characterized in that: when adopting a self-priming pipeline (1) and a discharge duct (9) with respect to dust removing units general layout, be one on the other, the version on the first from left right side.

4, sack cleaner according to claim 1 and 2 is characterized in that: self-priming valve (2) and intake valve (4), air bleeding valve (8) all adopt the butterfly valve around the axle upset.