CN214764142U - Impact-preventing pulse-jet ash removal filter drum dust removal device - Google Patents

Impact-preventing pulse-jet ash removal filter drum dust removal device Download PDF

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CN214764142U
CN214764142U CN202120165055.3U CN202120165055U CN214764142U CN 214764142 U CN214764142 U CN 214764142U CN 202120165055 U CN202120165055 U CN 202120165055U CN 214764142 U CN214764142 U CN 214764142U
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plate
slide
filter cylinder
ash removal
impact
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艾子昂
林子捷
陈源正
吴泉泉
李建龙
吴代赦
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Nanchang University
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Nanchang University
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Abstract

The utility model relates to the field of dust filtration, in particular to a collision-prevention pulse-jet deashing filter cylinder dust removal device, which comprises a sliding plate, an elastic reset plate, a bracket, a spring I, a buckle, a striking plate, a damper and a slide way II; the slide plate is nested and installed in the slide II, a damper is fixed on the slide II, an elastic reset plate is arranged in the middle of the slide plate, springs I are arranged on the slide plates on two sides of the elastic reset plate, the impact plate is supported by the springs I and is positioned in the filter cylinder, the axle center of the impact plate is kept to be coincident with that of the filter cylinder, supports are arranged at two ends of the slide plate, and buckles are installed on the supports. The utility model can generate blocking collision to the blowing air flow, forcibly convert the dynamic pressure energy of the blowing air flow into static pressure energy in a preset area, generate the ash removal effect with concentrated energy region by region, finally complete the integral uniform ash removal, solve the problem of poor ash removal and avoid ash removal dead zones; the impact plate can rebound and reset at the bottom; the structure is succinct, does not need extra power to assist the operation, and the automaticity performance is better.

Description

Impact-preventing pulse-jet ash removal filter drum dust removal device
Technical Field
The utility model relates to a dust filtration field especially relates to a hinder collision formula pulse and spout an ash removal and strain a dust collector.
Background
With the development of society and the progress of industry, the problem of dust emission is increasingly serious, people pay more and more attention to self health at present, too high dust concentration not only causes visibility to reduce, is unfavorable for the trip of mankind, still can influence the health of mankind, and the prevention and cure dust pollution is a long-term important task, and wherein pulse blowing filter cylinder dust remover becomes the dust controlgear who commonly uses with its higher dust collection efficiency.
The main function of the filter cartridge dust collector is to remove dust in the gas by filtration. As dust is trapped on the filter media of the filter cartridge, the filtration resistance increases. In order to ensure the normal operation of filtration, the dust cake collected on the surface of the filter cylinder needs to be periodically cleaned (i.e. the filter cylinder is cleaned), and the cleaning efficiency determines the stable performance of the pulse-jet dust remover. The existing ash removal modes mainly comprise mechanical vibration ash removal, airflow back blowing ash removal, sound wave ash removal and compressed air pulse blowing ash removal. The pulse blowing dust removal effect is good, the application is wide, and the stability is high. However, the existing pulse blowing ash removal has some problems that the ash removal degree of each area in the filter cylinder is greatly different in the blowing process, which is mainly characterized in that the ash removal effect of the upper area near the opening of the filter cylinder is often not better than that of the middle and lower areas of the filter cylinder, the uneven ash removal phenomenon causes local dust cake on the filter cylinder, and the ash removal dead zone is easy to appear on the upper part of the filter cylinder. In the prior art, national patent 201510107414.9 discloses a device for improving the blowing ash removal effect of an external filtering type filter cylinder, which can improve the strength and distribution uniformity of blowing airflow on the inner wall of the filter cylinder and improve the ash removal effect of the upper area of the filter cylinder. But the technical structure is more complex and the installation cost is higher.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of prior art, the utility model provides a hinder collision formula pulse and spout an deashing and strain a dust collector, can optimize the homogeneity of straining each position pulse jetting of a section of thick bamboo, solve the bad problem of deashing, avoid the deashing blind spot.
The technical scheme of the utility model is that: a collision-preventing pulse-jet ash removal filter cylinder dust removal device comprises an ash bucket, a box body and a pattern plate;
the inner cavity of the box body is divided into an upper air purifying chamber and a lower filtering chamber by an annular flower plate, the filtering chamber is provided with an air inlet and an air outlet, the bottom of the inner ring of the flower plate is provided with a filtering cylinder, the filtering cylinder is of a cylindrical structure with a closed bottom end and an open upper end, and a nozzle is arranged right above the open end;
the filter cartridge is internally provided with a collision preventing device, the collision preventing device comprises sliding plates, elastic reset plates, supports, springs I, buckles, impact plates, dampers and a slide way II, the two supports are arranged on two sides of an inner cavity of the filter cartridge, the bottoms of the two supports are matched with the bottom of the inner cavity of the filter cartridge to slide, the slide way II is fixed below the inner wall of the supports, the sliding plates are nested and installed in the slide way II to slide in a matched manner, the slide plates on the two sides are provided with the upward convex semicircular elastic reset plates connected with the sliding plates, the upper surfaces of the sliding plates on the two sides are connected with the bottom end of the spring I, the top end of the spring I is connected with the lower surface of the impact plate to keep the axis of the impact plate coincident with the axis of the filter cartridge, the dampers are fixed on the slide way II, and the front end surfaces of the dampers are used for slowing down inward reset of the supports towards the supports;
the inner wall top-down of support install 2 at least pairs of buckles, the buckle includes guide slot, spring II, slide I, core bar and spacing bolt, slide I fixes on the inner wall of support, is equipped with the gliding core bar of cooperation with it in the slide I, the front end of core bar links to each other with spring II's inner, spring II's outer end is connected with the guide slot, the guide slot front end forms from the top down and is the arc protrusion to the distance between the upper reason of both sides guide slot is greater than the diameter of striking plate, the distance between the lower reason is less than the diameter of striking plate.
The nozzle is connected with the air bag through an injection pipe, and an electromagnetic pulse valve is arranged on the injection pipe.
The impact plate is provided with at least 1 small hole.
The radius of the small holes is 1/5-1/2 of the radius of the impact plate.
The ash bucket is hopper-shaped structure set up in the bottom of box rather than integrated into one piece.
The beneficial effects of the utility model reside in that, can realize hindering the blown ash removal of straining of collision formula pulse. Because the impact plate is arranged in the filter cylinder, the impact plate can generate blocking collision on the blowing air flow when pulse blowing is used for removing the dust, the dynamic pressure energy of the blowing air flow is forcibly converted into static pressure energy, and the static pressure energy has acting force on the side wall of the filter cylinder, so that the dust removal of the filter cylinder is favorably realized. And the impact plate can move downwards step by step under the impact action of the pulse airflow and is locked at a preset height position through a buckle below the impact plate, so that the aim of generating concentrated pressure energy by blocking and colliding the airflow in a preset area is fulfilled, the ash removal effect that the pressure energy is concentrated in each area of the side wall of the filter cylinder is achieved, and the aim of uniformly spraying and removing ash on the whole is finally fulfilled. Simultaneously, the striking plate can rebound and reset at the bottom. The device provided by the utility model structure is succinct, does not need extra power assisted operation, and the automaticity performance is better.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged view of the snap structure at a in fig. 1.
In the figure, 1 is an ash hopper, 2 is a box body, 3 is a sliding plate, 4 is an elastic reset plate, 5 is a support, 6 is a spring I, 7 is a buckle, 71 is a guide groove, 72 is a spring II, 73 is a slide way I, 74 is a core rod, 75 is a limit bolt, 8 is a filter cylinder, 9 is an impact plate, 91 is a small hole, 10 is a nozzle, 11 is an electromagnetic pulse valve, 12 is a blowing pipe, 13 is a pattern plate, 14 is an air bag, 15 is a damper, and 16 is a slide way II.
Detailed Description
The invention will be further described with reference to the following figures and examples:
with reference to figures 1-2.
Example 1:
the utility model discloses a hinder collision formula pulse and spout deashing and strain dust collector, including ash bucket 1, box 2, slide 3, elasticity reset plate 4, support 5, spring I6, buckle 7, strain a section of thick bamboo 8, striking plate 9, nozzle 10, electromagnetic pulse valve 11, jetting pipe 12, card 13, gas bag 14, attenuator 15, slide 16.
The dust remover box body 2 is divided into an upper air purifying chamber and a lower filtering chamber by a flower plate 13, the filtering chamber is provided with an air inlet, the air purifying chamber is provided with an air outlet, a filtering cylinder 8 is hung and installed at the opening of the flower plate 13 in the filtering chamber, the bottom end of the filtering cylinder 8 is closed, and the upper end of the filtering cylinder is provided with an open tubular structure.
A nozzle 10 is arranged right above the opening of the filter cartridge 8, the nozzle 10 is connected with an air bag 14 through a blowing pipe 12, an electromagnetic pulse valve 11 is arranged on the blowing pipe 12, and air injection of the nozzle 10 can be controlled through the electromagnetic pulse valve 11.
The filter cylinder 8 is internally provided with a collision preventing device which comprises a sliding plate 3, an elastic reset plate 4, brackets 5, a spring I6, a buckle 7, an impact plate 9, a damper 15 and a slide II16, wherein the two brackets 5 are arranged on two sides of the inner cavity of the filter cylinder 8, the bottom of the slide way II16 is matched with the bottom of the inner cavity of the filter cylinder 8 to slide, the slide way II16 is fixed below the inner wall of the bracket 5, the sliding plates 3 are nested and arranged in the slide way II16 to slide in a matching way, an elastic reset plate 4 which is connected with the sliding plates 3 and has a convex semicircular structure is arranged between the sliding plates 3 at the two sides, the upper surfaces of the sliding plates 3 at the two sides are connected with the bottom end of a spring I6, the top end of the spring I6 is connected with the lower surface of the impact plate 9 for keeping the axle center of the impact plate 9 coincident with the axle center of the filter cylinder 8, a damper 15 is fixed on the slideway II16, and the front end of the damper 15 faces the bracket 5 and is used for slowing down the inward reset of the bracket 5;
at least 2 pairs of buckles 7 are arranged on the inner wall of the support 5 from top to bottom, in the embodiment, 3 pairs of buckles 7 are arranged, each buckle 7 comprises a guide groove 71, a spring II72, a slide I74, a core rod 73 and a limit bolt 75, the slide I74 is fixed on the inner wall of the support 5, the core rod 73 which slides in a matched mode with the slide I74 is arranged in the slide I74, the front end of the core rod 73 is connected with the inner end of the spring II72, the outer end of the spring II72 is connected with the guide groove 71, the front end of the guide groove 71 is in an arc-shaped protrusion from top to bottom, the distance between the upper edges of the guide grooves 71 on two sides is larger than the diameter of the impact plate 9, and the distance between the lower edges of the guide grooves on two sides is smaller than the diameter of the impact plate 9.
The center of the impact plate 9 is provided with 1 small hole 91, and the radius of the small hole is 1/5 of the radius of the impact plate 9.
Example 2:
when the dust remover needs to perform dust cleaning, a starting signal is sent to the electromagnetic pulse valve 11, compressed gas passes through the injection pipe 12 and the electromagnetic pulse valve 11 from the gas bag 14 to reach the nozzle 10 and is injected, and dust cleaning airflow is formed to perform primary pulse injection. The blowing air flow in the axial vertical direction of the filter cylinder 8 and the impact plate 9 generate violent collision, the dynamic pressure in the axial direction of the air flow is converted into static pressure, and the static pressure generates pressure action on the side wall area of the filter cylinder 8 near the position of the impact plate 9 to realize the concentrated dust removal. The radius of the aperture 91 in this embodiment is 1/5 of the radius of the impingement plate 9 so that part of the pulsed blow passes through the aperture 91 to the space below the impingement plate 9. On the one hand, one can avoid: a large amount of blowing air flow is accumulated above the impact plate 9, so that the impact plate 9 causes the scouring of the inner wall of the filter cylinder 8 due to the fact that the peripheral air flow velocity is too fast due to too large upper and lower pressure difference, and the aging of the filter cylinder 8 is accelerated; on the other hand, a certain blowing air flow pressure is ensured in the area below the impact plate 9, and the ash removal of the area of the filter cartridge 8 below the impact plate 9 is realized.
Meanwhile, the blowing air flow presses the impact plate 9 to move the spring I6 downward, in this embodiment, there are 3 pairs of buckles 7, and when the impact plate 9 reaches the first group of buckles 7 (the 3 groups of buckles from top to bottom are sequentially recorded as the first group, the second group and the third group), the guide groove 71 at the front end of the first group of buckles 7 moves outward under the squeezing action of the impact plate 9, and the spring II72 is compressed. After the strike plate 9 passes the first set of catches 7, the guide groove 71 returns the first set of catches 7 to the original position due to the resilient action of the spring II 72. At this point, strike plate 9 rests under the first set of catches 7 under the combined action of spring I6 and first set of catches 7.
During the second pulse blowing, the vertical blowing air flow collides with the impact plate 9 staying below the first group of buckles 7, and the air flow pressure formed by the collision generates a concentrated dust cleaning effect on the side wall of the filter cylinder 8 near the first group of buckles 7. At the same time, the second blowing air flow forces the striking plate 9 to move down again and to stay under the second set of catches 7.
During the third pulse blowing, the vertical blowing air flow collides with the impact plate 9 staying below the second group of buckles 7, and the air flow pressure formed by the collision generates a concentrated dust cleaning effect on the side wall of the filter cylinder 8 near the second group of buckles 7. At the same time, the third blowing air flow forces the striking plate 9 to move down again and stay under the third set of clasps 7.
During the fourth pulse blowing, the vertical blowing air flow collides with the impact plate 9 staying below the third group of buckles 7, and the air pressure formed by the collision generates a concentrated dust cleaning effect on the side wall of the filter cylinder 8 near the third group of buckles 7.
Therefore, the dust cleaning function with concentrated energy is realized in each area in the filter cylinder.
Meanwhile, the airflow blown by the fourth pulse forces the impact plate 9 to move downwards again, impact the elastic reset plate 4 and generate a downward pressing force on the elastic reset plate, so that the convex side of the elastic reset plate 4 is forced to deform downwards under the pressure and pushes the sliding plates 3 on the two sides of the elastic reset plate to move outwards along the slide way II 16. The outward movement of the slide plate 3 drives the bracket 5 and all the buckles 7 fixed on the bracket to move towards the inner wall of the filter cylinder 8.
The slide II16 and the bracket 5 are driven to try to reset due to the rebound action of the elastic resetting plate 4, but the resetting speed of the bracket 5 is relatively slow due to the one-way damping action of the damper 15 between the slide II16 and the bracket 5. And because spring I6's resilience effect, drive striking plate 9 upwards to reset, the speed that the relative support 5 resets is very fast to buckle 7 blockked striking plate 9 on having avoided support 5. After the damping action is finished, the impact plate 9, the bracket 5 and the buckle 7 all recover to the initial positions, and a process cycle is completed.
If do not the utility model relates to a hinder collision formula device, jetting air current directly reachs and strains a section of thick bamboo bottom and bump, forms the little and big pressure distribution in lower part in the section of thick bamboo, leads to straining that the ash removal degree of each position of a section of thick bamboo is inhomogeneous. The utility model discloses a hinder under collision formula device's the effect, can produce to the air current of jetting and hinder the collision, can force the dynamic pressure energy of jetting air current to convert the static pressure energy into in the predetermined region, make each region that corresponds produce the deashing effect that the energy is concentrated in proper order to finally accomplish holistic even deashing.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.

Claims (5)

1. A collision-prevention pulse-jet ash removal filter cylinder dust removal device is characterized by comprising an ash bucket (1), a box body (2) and a pattern plate (13);
the inner cavity of the box body (2) is divided into an upper air purifying chamber and a lower filtering chamber by an annular pattern plate (13), the filtering chamber is provided with an air inlet and an air outlet, a filtering cylinder (8) is arranged at the bottom of the inner ring of the pattern plate (13), the filtering cylinder (8) is of a cylindrical structure with a closed bottom end and an opening at the upper end, and a nozzle (10) is arranged right above the opening;
strain a section of thick bamboo (8) in be equipped with and hinder collision device, hinder collision device include slide (3), elasticity reset plate (4), support (5), spring I (6), buckle (7), striking plate (9), attenuator (15), slide II (16), two support (5) set up in strain the inner chamber both sides of section of thick bamboo (8), its bottom with the inner chamber bottom cooperation of section of thick bamboo (8) slides, slide II (16) are fixed the inner wall below of support (5), the nestification of slide (3) is installed and is slided with it in slide II (16), both sides be equipped with between slide (3) and be connected with it and be protruding semicircle annular structure elasticity reset plate (4), both sides the upper surface of slide (3) is connected with the bottom of spring I (6), the top of spring I (6) is connected with the lower surface of striking plate (9) and is used for keeping the axle center of striking plate (9) and strain a section of thick bamboo (8) axle center of section of thick bamboo (8) The sliding ways II (16) are overlapped, a damper (15) is fixed on each sliding way II (16), and the front end of each damper (15) faces the corresponding support (5) and is used for slowing down inward resetting of the corresponding support (5);
the inner wall of the support (5) is provided with at least 2 pairs of buckles (7) from top to bottom, each buckle (7) comprises a guide groove (71), a spring II (72), a slide I (74), a core rod (73) and a limiting bolt (75), the slide I (74) is fixed on the inner wall of the support (5), the core rod (73) which slides in a matched mode with the slide I (74) is arranged in the slide I (74), the front end of the core rod (73) is connected with the inner end of the spring II (72), the outer end of the spring II (72) is connected with the guide groove (71), the front end of the guide groove (71) is formed to be in an arc shape and protrudes from top to bottom, the distance between the upper edges of the guide grooves (71) on two sides is larger than the diameter of the impact plate (9), and the distance between the lower edges is smaller than the diameter of the impact plate (9).
2. The device for removing the dust in the pulse-jet ash removal filter cylinder is characterized in that the nozzle (10) is connected with the air bag (14) through a jet pipe (12), and the jet pipe (12) is provided with an electromagnetic pulse valve (11).
3. The device for removing the dust in the pulse-jet ash removal filter cylinder of the obstructing type according to the claim 2, characterized in that the striking plate (9) is provided with at least 1 small hole (91).
4. The device for removing the dust in the impact-resistant pulse-jet ash removal filter cylinder as claimed in claim 3, wherein the radius of the small hole (91) is 1/5-1/2 of the radius of the impact plate (9).
5. The device for removing dust from a pulse-jet ash removal filter cylinder in a collision-resistant manner according to claim 1, wherein the ash hopper (1) is arranged at the bottom of the box body (2) in a funnel-shaped structure and is integrally formed with the box body.
CN202120165055.3U 2021-01-21 2021-01-21 Impact-preventing pulse-jet ash removal filter drum dust removal device Active CN214764142U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112915675A (en) * 2021-01-21 2021-06-08 南昌大学 Impact-preventing pulse-jet ash removal filter drum dust removal device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112915675A (en) * 2021-01-21 2021-06-08 南昌大学 Impact-preventing pulse-jet ash removal filter drum dust removal device

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