阅读说明：本技术 一种便于清灰的除尘滤袋 (Dust removal filter bag convenient to deashing ) 是由 李云光 李永 卢大超 杜建强 于 2021-08-31 设计创作，主要内容包括：本发明的目的在于提供一种便于清灰的除尘滤袋,包括笼架以及套设在笼架外部的滤袋,所述笼架包括环板和底板,所述环板与底板同轴上下分布,且环板的下端面与底板的上端面之间连接有三根连接杆,进而使笼架形成筒形框体,其特征在于：还包括同轴固定安装在底板上的进气管,该进气管的顶端延伸出环板之外,该进气管的顶部与反吹管网的反吹口密封连接,进气管的外周侧固定安装有多组纵向分布的出风槽,出风槽与连接杆呈错位分布,该出风槽的纵向剖面为向上弯曲的弧形槽体,出风槽的末端为横向延伸的平直段,该平直段处具有朝向滤袋吹出的槽口,所述平直段的下边缘处连接有柔性摆动片,摆动片呈自然垂落状。(The invention aims to provide a dust-removing filter bag convenient for dust removal, which comprises a cage frame and a filter bag sleeved outside the cage frame, wherein the cage frame comprises a ring plate and a bottom plate, the ring plate and the bottom plate are coaxially distributed up and down, three connecting rods are connected between the lower end surface of the ring plate and the upper end surface of the bottom plate, and the cage frame is further formed into a cylindrical frame body, and the dust-removing filter bag is characterized in that: still include the intake pipe of coaxial fixed mounting on the bottom plate, outside the crown extension of this intake pipe annular plate, the top of this intake pipe and the blowback mouth sealing connection of blowback pipe network, the periphery side fixed mounting of intake pipe has the air-out groove of multiunit longitudinal distribution, and the air-out groove is the dislocation distribution with the connecting rod, and the longitudinal section of this air-out groove is the arc cell body of incurving, and the end of air-out groove is the straight section of horizontal extension, and this straight section department has the notch that blows off towards the filter bag, the lower limb department of straight section is connected with flexible pendulum piece, and the pendulum piece is the nature form that hangs down.)

1. The utility model provides a dust removal filter bag convenient to deashing, establishes the outside filter bag in cage including cage and cover, the cage includes crown plate and bottom plate, the crown plate distributes about with the bottom plate is coaxial, and is connected with three connecting rods between the up end of the lower terminal surface of crown plate and bottom plate, and then makes the cage form cylindric framework, its characterized in that: still include the intake pipe of coaxial fixed mounting on the bottom plate, outside the crown extension of this intake pipe annular plate, the top of this intake pipe and the blowback mouth sealing connection of blowback pipe network, the periphery side fixed mounting of intake pipe has the air-out groove of multiunit longitudinal distribution, and the air-out groove is the dislocation distribution with the connecting rod, and the longitudinal section of this air-out groove is the arc cell body of incurving, and the end of air-out groove is the straight section of horizontal extension, and this straight section department has the notch that blows off towards the filter bag, the lower limb department of straight section is connected with flexible pendulum piece, and the pendulum piece is the nature form that hangs down, and the flat length that flattens of pendulum piece is greater than the notch of air-out groove is to the distance of filter bag.

2. The dust bag convenient for ash removal of claim 1, wherein: the three connecting rods are distributed annularly and at equal intervals.

3. The dust bag convenient for ash removal of claim 1, wherein: the swinging sheet is a soft rubber sheet or a flexible plastic sheet capable of generating elastic deformation.

4. The dust bag convenient for ash removal of claim 1, wherein: the air outlet groove gradually increases in width from one side of the air inlet pipe to one side of the notch and is of a fan-shaped structure.

5. The dust bag convenient for ash removal of claim 4, wherein: the height of the internal air channel of the air outlet groove is gradually reduced from one side of the air inlet pipe to one side of the notch.

6. The dust bag convenient for ash removal of claim 1, wherein: the connecting rod adopts a flexible rubber rod.

7. The dust bag convenient for ash removal of claim 6, wherein: the side fixed mounting of intake pipe has the connecting rod of multiunit longitudinal distribution, the tip of connecting rod is provided with the fastener, has the draw-in groove that makes the rubber column card go into on the fastener.

Technical Field

The invention relates to the field of air purification, in particular to a dust removal filter bag convenient for dust removal.

Background

One of the nuclear core part of filter-bag dust remover is the filter bag, the cage is the essential element that supports the filter bag, the filter bag cover is established outside the cage and is supported the bag body, a plurality of cages are hung in midair on the card, thereby form the filter bag crowd that suspends in midair in the bottom of card, the flue gas is filtered through filter bag crowd after the air intake entering of filter-bag dust remover, flue gas outside-in gets into in the filter bag promptly, the dust in the flue gas is bonded and is attached at the filter bag surface, the clean air after the filtration is discharged by the open-top of card, thereby realize the flue gas and filter. The filter bag needs to clear up its surperficial sedimentary ash layer impurity after using a period, the mode that prior art adopted is the high-pressure pulse blowback deashing, arrange the blowback pipe in the top of card promptly, the spray tube to the filter bag exhaust opening is just seted up to the bottom of blowback pipe, admit air through pulse high pressure and make high-pressure air get into in the filter bag by the blowback pipe, and blow off from inside to outside in order to realize the blowback, can make the filter bag produce the vibration and then make its outer ash layer shake off during the blowback, in order to reach deashing and filtering capability's regeneration. However, it also has the disadvantage that when the high-pressure air blows back downwards, the pressure of the high-pressure air is gradually reduced, so that the vibration generated from the top to the bottom of the filter bag is gradually reduced, and the filter bag is close to the upper layer (i.e. the section close to the back-blowing pipe) and has a better ash layer shaking-off effect due to large vibration, while the filter bag is close to the lower layer (i.e. the section far from the back-blowing pipe) and has reduced vibration due to the reduction of back-blowing air pressure, so that the ash layer shaking-off is incomplete, the dust cleaning effect is less forked, and generally, the dust cleaning effect of the filter bag cannot achieve the best effect.

Disclosure of Invention

The invention aims to provide a dust removal filter bag convenient for dust removal, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a dust removal filter bag convenient to deashing, establishes the outside filter bag in cage including cage and cover, the cage includes crown plate and bottom plate, the crown plate distributes about with the bottom plate is coaxial, and is connected with three connecting rods between the up end of the lower terminal surface of crown plate and bottom plate, and then makes the cage form cylindric framework, its characterized in that: still include the intake pipe of coaxial fixed mounting on the bottom plate, outside the crown extension of this intake pipe annular plate, the top of this intake pipe and the blowback mouth sealing connection of blowback pipe network, the periphery side fixed mounting of intake pipe has the air-out groove of multiunit longitudinal distribution, and the air-out groove is the dislocation distribution with the connecting rod, and the longitudinal section of this air-out groove is the arc cell body of incurving, and the end of air-out groove is the straight section of horizontal extension, and this straight section department has the notch that blows off towards the filter bag, the lower limb department of straight section is connected with flexible pendulum piece, and the pendulum piece is the nature form that hangs down, and the flat length that flattens of pendulum piece is greater than the notch of air-out groove is to the distance of filter bag.

As a further scheme of the invention: the three connecting rods are distributed annularly and at equal intervals.

As a further scheme of the invention: the swinging sheet is a soft rubber sheet or a flexible plastic sheet capable of generating elastic deformation.

As a further scheme of the invention: the air outlet groove gradually increases in width from one side of the air inlet pipe to one side of the notch and is of a fan-shaped structure.

As a further scheme of the invention: the height of the internal air channel of the air outlet groove is gradually reduced from one side of the air inlet pipe to one side of the notch.

As a further scheme of the invention: the connecting rod adopts a flexible rubber rod.

As a further scheme of the invention: the side fixed mounting of intake pipe has the connecting rod of multiunit longitudinal distribution, the tip of connecting rod is provided with the fastener, has the draw-in groove that makes the rubber column card go into on the fastener.

Compared with the prior art, the invention has the beneficial effects that:

the invention arranges the air inlet pipe coaxially in the cage frame, and arranges the air outlet grooves around the air inlet pipe, the lower edge of the notch at the end part of the air outlet groove is connected with a swinging sheet, the air outlet groove is in an arc shape which is bent upwards, the end part of the swinging piece is provided with a straight section, so that high-pressure airflow is guided by the arc-shaped air outlet groove and then blown out from the notch of the straight section at high speed, thereby forming pressure difference between the upper surface and the lower surface of the swinging piece, and then under the action of pressure difference, the swinging piece moves upwards and falls under the action of self gravity and intermittent blowing, so that the swinging piece swings, because the length of the swinging piece is larger than the distance from the edge of the notch to the filter bag, the tail end of the swinging piece can hit the filter bag, so that the filter bag generates multi-section local vibration, and then the vibration generated by air blowing is matched to improve the integral vibration amplitude of the filter bag, so that the ash removal effect is further improved.

Drawings

FIG. 1 is a schematic view of a dust bag for facilitating ash removal;

FIG. 2 is an enlarged view of a portion of the dust bag for facilitating ash removal;

FIG. 3 is a top plan view of a dust bag for facilitating ash removal;

in the figure: the device comprises a bottom plate 1, a filter bag 2, a swinging piece 3, an air outlet groove 4, a connecting column 5, a clamping piece 6, a connecting rod 7, an air inlet pipe 8, a flower plate 9, an annular plate 10, a back-blowing pipe network 11 and a notch 12.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1 to 3, in the present embodiment, a dust filter bag convenient for dust cleaning includes a cage frame and a filter bag 2 sleeved outside the cage frame, the cage frame includes a ring plate 10 and a bottom plate 1, the ring plate 10 and the bottom plate 1 are coaxially distributed up and down, and three connecting rods 5 are connected between the lower end surface of the ring plate 10 and the upper end surface of the bottom plate 1, the connecting rods 5 are close to the edge and annularly distributed at equal intervals, so that the cage frame forms a cylindrical frame body, when in installation, the ring plate 10 is fixedly installed on a flower plate 9, the dust filter bag further includes an air inlet pipe 8 coaxially and fixedly installed on the bottom plate 1, the top end of the air inlet pipe 8 extends out of the ring plate 10, the top of the air inlet pipe 8 is hermetically connected with a back flushing port of a back flushing pipe network 11, so that high pressure air in the back flushing pipe network 11 is blown into the air inlet pipe 8, a plurality of sets of longitudinally distributed air outlet slots 4 are fixedly installed on the outer circumferential side of the air inlet pipe 8, each group of air outlet grooves 4 are annularly distributed at equal intervals, the air outlet grooves 4 and the connecting rods 5 are distributed in a staggered manner, the longitudinal section of each air outlet groove 4 is an arc groove body which is bent upwards, the tail end of each air outlet groove 4 is a transversely extending straight section, a notch 12 which is blown towards the filter bag 2 is arranged at the straight section, a swinging sheet 3 is connected to the lower edge of the straight section, the swinging sheet 3 is in a natural falling shape, the swinging sheet 3 is a flexible sheet body, the swinging sheet 3 can be a soft rubber sheet or a flexible plastic sheet which can generate elastic deformation, the flattening length of the swinging sheet 3 is greater than the distance from the notch 12 of the air outlet groove 4 to the filter bag 2, when the filter bag 2 is subjected to back blowing and dust removing, high-pressure air flow is blown into the air inlet pipe 8 and blown out from the notch 12 of the straight section of the air outlet grooves 4 and then acts on the filter bag 2, and because the back blowing air flow is pulse type intermittent blowing, therefore, blow and can arouse filter bag 2 vibration behind the filter bag 2, thereby carry out the deashing to filter bag 2, simultaneously, high-pressure draught blows off by straight section notch 12 again at a high speed after arc goes out the wind slot 4 direction, thereby make the upper surface and the lower surface of swing piece 3 form pressure differential, the lower surface atmospheric pressure of swing piece 3 is greater than its upper surface atmospheric pressure promptly, and then under the pressure differential effect, make swing piece 3 move upwards, and fall under its self gravity and the effect that the intermittent type formula was blown, and then make swing piece 3 produce the swing, the swing in-process, because the length of swing piece 3 is greater than the distance of notch 12 edges to filter bag 2, consequently, filter bag 2 can be hit to the end of swing piece 3, thereby make filter bag 2 produce multistage local vibration, and then the vibration that the cooperation was blown and is produced is in order to improve the holistic vibration range of filter bag 2, further improve the deashing effect.

Furthermore, air-out groove 4 is from 8 one sides of intake pipe to its width crescent and be fan-shaped on 12 one sides of notch, and its aim at makes notch 12 can be as wide as possible cover be located two adjacent connecting rod 5 between 2 parts of filter bag, finally increases the hitting area of contact of pendulum piece 3 and filter bag 2, and in addition, the inside wind channel height of air-out groove 4 reduces gradually from 8 one sides of intake pipe to 12 one sides of notch to guarantee that 12 departments of notch are aired exhaust and have higher air current, in order to increase the pressure difference about pendulum piece 3, and then increase the amplitude of swing of pendulum piece 3.

In the prior art, the connecting rod 5 between the ring plate 10 and the bottom plate 1 is mostly a steel rod made of metal, so the connecting rod 5 is easily damaged or broken during long-term use, and therefore, in the embodiment, the connecting rod 5 is made of a flexible rubber rod, so on the basis of basic support performance, the connecting rod can be elastically deformed, on one hand, the steel connecting rod 5 can be prevented from being broken, and on the other hand, when the connecting rod is wholly shaken under the action of air flow, the filter bag 2 can be driven to further shake to cooperate with the blowback vibration, so that a better dust cleaning effect is achieved.

In order to carry out certain position to the rubber pole and prescribe a limit to, the week side fixed mounting of intake pipe 8 has the connecting rod 7 of multiunit longitudinal distribution, the tip of connecting rod 7 is provided with fastener 6, has the draw-in groove that makes the rubber column card go into on fastener 6.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.