CN109091974B - Automatic back-blowing dust treatment device for filter cartridge - Google Patents
Automatic back-blowing dust treatment device for filter cartridge Download PDFInfo
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- CN109091974B CN109091974B CN201811161760.5A CN201811161760A CN109091974B CN 109091974 B CN109091974 B CN 109091974B CN 201811161760 A CN201811161760 A CN 201811161760A CN 109091974 B CN109091974 B CN 109091974B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
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- Chemical Kinetics & Catalysis (AREA)
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An automatic back-blowing dust treatment device for filter cylinders comprises a shell, a first filter cylinder and a second filter cylinder are arranged in the shell, filter layers are arranged on the inner surface of the first filter cylinder and the outer surface of the second filter cylinder, a first chamber is arranged in the first filter cylinder, the upper end of the first filter cylinder is provided with a first gas inlet, a second chamber is formed between the second filter cylinder and the shell, the upper end of the second filter cylinder is provided with a second gas inlet, the lower ends of the first chamber and the second chamber are of sealable structures, a third chamber with the sealed upper end and the open lower end is arranged between the first filter cylinder and the second filter cylinder, the first gas inlet and the second gas inlet are step-shaped through holes, the first gas inlet is sealed when a first piston is positioned in a small-diameter hole of the first gas inlet, the first gas inlet is opened when the first piston is positioned in a large-diameter hole, the second gas inlet is sealed when the second piston is positioned in a small-diameter hole of the second gas inlet, and the second gas inlet is opened when the second; the invention has simple structure and ingenious conception, simplifies the traditional device and improves the efficiency of the filter cartridge filtering process.
Description
Technical Field
The invention relates to the technical field of dust treatment, in particular to an automatic back-blowing dust treatment device for filter cylinders.
Background
Dust treatment has always been a major difficult problem of environmental protection trade, current dust treatment equipment has a lot of, wherein the dust treatment equipment that dust removal effect is better is strain a dust collecting equipment, its purification efficiency is high, there is more than 99.9% purification efficiency to the dust more than the submicron, the dust removal principle that this kind of equipment used is strain a section of thick bamboo and adsorbs the dust outward, strain a section of thick bamboo interior exhaust and filter the clean gas after the filtration, then through straining interior blowback of a section of thick bamboo and detach the dust that strains a section of thick bamboo outer wall and adsorb, prior art means need additionally set up the blowback system, strain a section of thick bamboo during the blowback and can't filter dirty gas, increased equipment cost, reduced work efficiency.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide an automatic back-blowing dust treatment device for filter cartridges, which effectively solves the problem that an additional back-blowing system is required to clean the filter cartridges during the dust removal of the existing filter cartridges.
The technical scheme includes that the filter comprises a shell, a first filter cylinder is arranged in the shell, a second filter cylinder is sleeved outside the first filter cylinder, filter layers are arranged on the inner surface of the first filter cylinder and the outer surface of the second filter cylinder, a first chamber is arranged in the first filter cylinder, a first gas inlet is formed in the upper end of the first chamber, an annular second chamber is formed between the second filter cylinder and the shell, an annular second gas inlet is formed in the upper end of the second chamber, the lower ends of the first chamber and the second chamber are of sealable structures, a third chamber is arranged between the first filter cylinder and the second filter cylinder, the third chamber is of a structure with the upper end sealed and the lower end opened, the first gas inlet is a step through hole formed by communicating an upper circular hole and a lower circular hole with different diameters, a first piston is arranged in the first gas inlet, the first piston seals the first gas inlet when the first piston is positioned in a small-diameter hole of the first gas inlet, the first gas inlet is opened when the first piston is positioned in the large-diameter hole, a circular second piston is arranged in the second gas inlet, the second gas inlet is sealed when the second piston is positioned in the small-diameter hole of the second gas inlet, and the second gas inlet is opened when the second piston is positioned in the large-diameter hole; when the first gas inlet is a stepped through hole with a large diameter, the second gas inlet is a stepped through hole with a small diameter, and vice versa;
a support which slides up and down is arranged above the inner part of the shell, a first connecting rod and a plurality of second connecting rods are fixedly connected below the support, the lower end part of the first connecting rod is connected with a first piston, and the lower end parts of the plurality of second connecting rods are connected with a second piston; when the first piston is positioned in the small-diameter hole of the first gas inlet to seal the first gas inlet, the second piston is positioned in the large-diameter hole of the second gas inlet to open the second gas inlet, then the support moves to drive the first piston to move into the large-diameter hole of the first gas inlet to open the first gas inlet, the second piston is positioned in the large-diameter hole of the second gas inlet to open the second gas inlet, when the support continues to move to drive the second piston to move into the small-diameter hole of the second gas inlet to seal the second gas inlet, the first piston is positioned in the large-diameter hole of the first gas inlet to open the first gas inlet, then the support reversely moves to drive the second piston to move into the large-diameter hole of the second gas inlet to open the second gas inlet, the first piston is positioned in the large-diameter hole of the first gas inlet to open the first gas inlet, and then the support continues to reversely move to drive the first piston to move into the small-diameter hole of the first gas inlet to seal the first gas inlet When the gas inlet is opened, the second piston is positioned in the large-diameter hole of the second gas inlet to open the second gas inlet, and then the support moves to form a circular motion.
The invention has simple structure and ingenious conception, can realize self-cleaning of the filter cylinder when filtering the dust-containing gas by the intermittent sealing device and the filter cylinder sleeved inside and outside, simplifies the traditional device and obviously improves the efficiency of the filter cylinder filtering process.
Drawings
FIG. 1 is a schematic front cross-sectional view of the present invention.
Fig. 2 is a schematic view of the assembly of the holder 12 with the housing 1.
Fig. 3 is a schematic sectional view taken along line a-a in fig. 1.
Fig. 4 is a schematic diagram of two gas inlets simultaneously entering gas when the first gas inlet 6 is a large diameter hole on the upper side, a small diameter hole on the lower side, the second gas inlet 7 is a small diameter hole on the upper side, and a large diameter hole on the lower side, and the first piston 9 and the second piston 10 are both placed in the large diameter hole.
Fig. 5 is a schematic diagram showing that when the first gas inlet 6 is a large-diameter hole at the upper part, a small-diameter hole at the lower part, and a small-diameter hole at the upper part, and a large-diameter hole at the lower part, the first piston 9 is positioned in the small-diameter hole of the first gas inlet 6 to seal the first gas inlet 6, the second piston 10 is positioned in the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7, and only the second gas inlet 7 is filled with gas.
Fig. 6 is a schematic cross-sectional view B-B of fig. 1.
Fig. 7 is an enlarged schematic view at C in fig. 1.
Fig. 8 is a schematic view of the first hopper 23 and the second hopper 24 when they are opened.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in the attached drawings 1-8, the invention comprises a shell 1, a first filter cylinder 2 is arranged in the shell 1, a second filter cylinder 3 is sleeved outside the first filter cylinder 2, filter layers are arranged on the inner surface of the first filter cylinder 2 and the outer surface of the second filter cylinder 3, a first chamber 4 is arranged in the first filter cylinder 2, a first gas inlet 6 is arranged at the upper end of the first chamber 4, an annular second chamber 5 is formed between the second filter cylinder 3 and the shell 1, an annular second gas inlet 7 is arranged at the upper end of the second chamber 5, the lower ends of the first chamber 4 and the second chamber 5 are in a sealable structure, a third chamber 8 is arranged between the first filter cylinder 2 and the second filter cylinder 3, the third chamber 8 is in a structure that the upper end is sealed and the lower end is open, the first gas inlet 6 is a step-shaped through hole formed by communicating two circular holes with different diameters, the second gas inlet 7 is a step-shaped through hole formed by communicating two circular holes with different, a first piston 9 is arranged in the first gas inlet 6, the first piston 9 seals the first gas inlet 6 when being positioned in a small-diameter hole of the first gas inlet 6, the first gas inlet 6 is opened when being positioned in a large-diameter hole, a circular second piston 10 is arranged in the second gas inlet 7, the second piston 10 seals the second gas inlet 7 when being positioned in a small-diameter hole of the second gas inlet 7, and the second gas inlet 7 is opened when being positioned in a large-diameter hole; when the first gas inlet 6 is a stepped through-hole with a large diameter at the top and a small diameter at the bottom, the second gas inlet 7 is a stepped through-hole with a small diameter at the top and a large diameter at the bottom, and vice versa;
a bracket 12 which slides up and down is arranged at the upper part in the shell 1, a first connecting rod 11 and a plurality of second connecting rods 13 are fixedly connected below the bracket 12, the lower end part of the first connecting rod 11 is connected with the first piston 9, and the lower end parts of the plurality of second connecting rods 13 are connected with the second piston 10; when the first piston 9 is located in the small-diameter hole of the first gas inlet 6 to seal the first gas inlet 6, the second piston 10 is located in the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7, then the support 12 moves to drive the first piston 9 to move into the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6, the second piston 10 is located in the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7, the support 12 continues to move to drive the second piston 10 to move into the small-diameter hole of the second gas inlet 7 to seal the second gas inlet 7, the first piston 9 is located in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6, then the support 12 moves reversely to drive the second piston 10 to move into the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7, the first piston 9 is located in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6, then the support 12 continues moving reversely to drive the first piston 9 to move into the small diameter hole of the first gas inlet 6 to seal the first gas inlet 6, the second piston 10 is located in the large diameter hole of the second gas inlet 7 to open the second gas inlet 7, and then the support 12 moves to form a circular motion.
The support 12 comprises a circular ring 14, a concentric circular disc 15 is arranged in the center of the circular ring 14, the circular ring 14 is connected with the circular disc 15 through a plurality of third connecting rods 16 which are uniformly distributed on the circumference and have rectangular vertical sections, circular reinforcing ribs are arranged among the third connecting rods 16, the first connecting rod 11 is connected below the circular disc 15, and the second connecting rod 13 is connected below the third connecting rod 16.
The outer edge of the ring 14 is provided with a plurality of lugs 17 with rectangular vertical sections, a vertical U-shaped sliding groove 18 is formed in the shell 1, the lugs 17 slide up and down in the sliding groove 18, balls are mounted on the left side and the right side of the lugs 17, a fourth connecting rod 19 is fixedly connected above the third connecting rod 16, a nut 20 is fixedly connected to the upper ends of the fourth connecting rods 19 together, a reciprocating lead screw 21 is connected to the center of the nut 20 in a threaded mode, a motor 22 with a speed reducer is fixed on the shell 1, the speed reducer is coaxially connected with the reciprocating lead screw 21, the motor 22 rotates to drive the reciprocating lead screw 21 to rotate, the reciprocating lead screw 21 rotates to drive the support 12 to reciprocate up and down, and the balls arranged between the lugs 17 and the sliding groove 18 can.
In order to realize the intermittent air inlet sealing of the first air inlet 6 and the second air inlet 7, the second air inlet 7 independently enters air in the process that the first piston 9 enters and exits the small-diameter hole of the first air inlet 6; when the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 and the second piston 10 is positioned in the large-diameter hole of the second gas inlet 7, the two ports simultaneously admit gas; in the process that the second piston 10 enters and exits the small-diameter hole of the second gas inlet 7, the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6, and the first gas inlet 6 independently enters gas; the intermittent sealing is realized by the circulation of three air inlet sealing states.
When the large diameter hole of the first gas inlet 6 is on top and the small diameter hole is on bottom, the large diameter hole of the second gas inlet 7 is on bottom and the small diameter hole is on top; the movement of the support 12 in this state is as follows: when the bracket 12 is positioned at the top, the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6, and the second piston 10 is positioned in the small-diameter hole of the second gas inlet 7 to block and seal the second gas inlet 7; then the bracket 12 moves downwards to drive the second piston 10 to move from the small-diameter hole of the second gas inlet 7 to the large-diameter hole, the second gas inlet 7 is changed from a sealing state to an opening state, and in the process, the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6; then the bracket 12 continues to move downwards to drive the first piston 9 to move from the large-diameter hole of the first gas inlet 6 to the small-diameter hole, the first gas inlet 6 is changed from an open state to a sealed state, and in the process, the second piston 10 is positioned in the large-diameter hole in the second gas inlet 7 to open the second gas inlet 7; then the bracket 12 drives the first piston 9 to move downwards in the small-diameter hole of the first gas inlet 6 to the lowest end, in the process, the first gas inlet 6 is blocked and sealed by the first piston 9, and the second piston 10 is positioned in the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7; then the bracket 12 moves upwards to drive the first piston 9 to move from the small-diameter hole of the first gas inlet 6 to the large-diameter hole, the first gas inlet 6 is changed from a sealing state to an opening state, and in the process, the second piston 10 is positioned in the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7; then the bracket 12 continues to move upwards to drive the second piston 10 to move from the large-diameter hole of the second gas inlet 7 to the small-diameter hole, the second gas inlet 7 is changed from an open state to a sealed state, and in the process, the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6; then the bracket 12 drives the second piston 10 to move upwards in the small-diameter hole of the second gas inlet 7 to the uppermost end, the second gas inlet 7 is blocked and sealed by the second piston 10 in the process, and the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6; the carriage 12 is then moved downwardly to form a circular motion. Similarly, the sealing effect of the first piston 9 and the second piston 10 on the first gas inlet 6 and the second gas inlet 7 along with the up-and-down movement of the bracket 12 can be analogized when the large-diameter hole of the first gas inlet 6 is on the lower part, the small-diameter hole is on the upper part, the large-diameter hole of the second gas inlet 7 is on the upper part, and the small-diameter hole is on the lower part.
In order to realize the sealing of the lower ends of the first chamber 4 and the second chamber 5, the lower end of the first chamber 4 is provided with a first ash bucket 23 in a round platform shape, the first chamber 4 is communicated with the first ash bucket 23, the lower end part of the first ash bucket 23 is provided with two semicircular cover plates 25, and the two semicircular cover plates 25 are hinged to form a round plate to cover and seal the lower end part of the first ash bucket 23; the lower end of the second chamber 5 is provided with an annular second ash bucket 24 with a trapezoidal vertical section, the second chamber 5 is communicated with the second ash bucket 24, the lower end part of the second ash bucket 24 is provided with two semicircular cover plates 26, and the two semicircular cover plates 26 are hinged to form a circular cover plate to cover the lower end part of the second ash bucket 24.
In order to open the first dust hopper 23 and the second dust hopper 24, a truncated cone-shaped dust collection chamber 33 is connected to the lower end of the housing 1, the dust collection chamber 33 surrounds the outsides of the first dust hopper 23 and the second dust hopper 24, a horizontal shaft 27 is arranged in the dust collection chamber 33, two semicircular cover plates 25 are symmetrically arranged about the shaft 27 and can rotate about the shaft 27 to open the first dust hopper 23, and two semicircular cover plates 26 are symmetrically arranged about the shaft 27 and can rotate about the shaft 27 to open the second dust hopper 24.
In order to realize the synchronous opening and closing of the first ash bucket 23 and the second ash bucket 24, the semicircular cover plate 25 and the semicircular cover plate 26 are connected through a plurality of fifth connecting rods 28, a first ring sleeve 29 is arranged at the arc top of the semicircular cover plate 26, a second ring sleeve 30 is arranged above the first ring sleeve 29, the second ring sleeve 30 is arranged at the outer side of the second ash bucket 24, a through hole is formed in the dust collection chamber 33 and is close to the second ring sleeve 30, a winder 31 is arranged at the outer side of the through hole, a rope 32 is tied on the first ring sleeve 29, the rope 32 penetrates through the second ring sleeve 30 and the through hole at the upper part and is connected with the winder 31 outside the dust collection chamber 33, the two semicircular cover plates 25 can be pulled to be in a horizontal state to cover and seal the lower end part of the first ash bucket 23 by tensioning the two ropes 32, the two semicircular cover plates 26 are pulled to be in a horizontal state to cover and seal the lower end part of the second ash bucket 24, the two ropes 32 are loosened, and the two semicircular cover plates 25 A first ash bucket 23 and a second ash bucket 24 are opened.
The specific principle and the working process of the invention are as follows:
the invention relates to an automatic back-blowing dust treatment device for filter cylinders, which comprises a bracket 12 at the upper end of a shell 1 and an intermittent air inlet sealing device of dust-containing gas consisting of a connecting rod, a spring and the like connected with the bracket 12, wherein a filtering device which consists of an inner filter cylinder and an outer filter cylinder and can automatically back-blow and clean the filter cylinders is correspondingly arranged below the intermittent air inlet sealing device, and a dust collecting device consisting of a dust hopper, a conveying belt and the like is correspondingly arranged below the filtering device.
The dust-containing gas to be treated enters from the top of the shell 1, the motor 22 drives the reciprocating screw 21 to rotate, the nut 20 is driven by the rotation of the reciprocating screw 21 to move up and down, the nut 20 drives the support 12 to reciprocate through the fourth connecting rod 19, and the first piston 9 and the second piston 10 are driven by the lifting of the support 12 to lift up and down. The upper parts of the first filter cylinder 2 and the second filter cylinder 3 are sealed by arranging a sealing cover plate, and a first gas inlet 6 and a second gas inlet 7 are formed in the sealing cover plate to be communicated with an upper gas inlet and a lower dust-containing gas chamber.
Taking an example that the large-diameter hole of the first gas inlet 6 is arranged at the top, the small-diameter hole is arranged at the bottom, the large-diameter hole of the second gas inlet 7 is arranged at the bottom, and the small-diameter hole is arranged at the top, when the bracket 12 is positioned at the top, the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6, and the second piston 10 is positioned in the small-diameter hole of the second gas inlet 7 to block and seal the second gas inlet 7; then the bracket 12 moves downwards to drive the second piston 10 to move from the small-diameter hole of the second gas inlet 7 to the large-diameter hole, the second gas inlet 7 is changed from a sealing state to an opening state, and in the process, the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6; then the bracket 12 continues to move downwards to drive the first piston 9 to move from the large-diameter hole of the first gas inlet 6 to the small-diameter hole, the first gas inlet 6 is changed from an open state to a sealed state, and in the process, the second piston 10 is positioned in the large-diameter hole in the second gas inlet 7 to open the second gas inlet 7; then the bracket 12 drives the first piston 9 to move downwards in the small-diameter hole of the first gas inlet 6 to the lowest end, in the process, the first gas inlet 6 is blocked and sealed by the first piston 9, and the second piston 10 is positioned in the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7; then the bracket 12 moves upwards to drive the first piston 9 to move from the small-diameter hole of the first gas inlet 6 to the large-diameter hole, the first gas inlet 6 is changed from a sealing state to an opening state, and in the process, the second piston 10 is positioned in the large-diameter hole of the second gas inlet 7 to open the second gas inlet 7; then the bracket 12 continues to move upwards to drive the second piston 10 to move from the large-diameter hole of the second gas inlet 7 to the small-diameter hole, the second gas inlet 7 is changed from an open state to a sealed state, and in the process, the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6; then the bracket 12 drives the second piston 10 to move upwards in the small-diameter hole of the second gas inlet 7 to the uppermost end, the second gas inlet 7 is blocked and sealed by the second piston 10 in the process, and the first piston 9 is positioned in the large-diameter hole of the first gas inlet 6 to open the first gas inlet 6; the carriage 12 is then moved downwardly to form a circular motion.
The intermittent sealing time of the first gas inlet 6 and the second gas inlet 7 can be realized by controlling the stroke length of the pistons in the corresponding gas inlets, the longer the stroke of the pistons in the small holes is, the longer the corresponding sealing time is, the larger the stroke of the two pistons simultaneously positioned in the corresponding large-diameter holes is, and the longer the time for the two corresponding gas inlets to simultaneously admit gas is; the length of the first and second links 11 and 13 only affects the level of the small-diameter hole of the corresponding gas inlet.
The lower end of the shell 1 is connected with a circular truncated cone-shaped dust collecting chamber 33, a horizontal shaft 27 is arranged in the dust collecting chamber 33, two semicircular cover plates 25 are symmetrically arranged about the shaft 27 and can rotate about the shaft 27 to open the first dust hopper 23, and two semicircular cover plates 26 are symmetrically arranged about the shaft 27 and can rotate about the shaft 27 to open the second dust hopper 24. The semicircular cover plate 25 and the semicircular cover plate 26 are connected through a plurality of fifth connecting rods 28, a first ring sleeve 29 is arranged at the arc top of the semicircular cover plate 26, a second ring sleeve 30 is arranged above the first ring sleeve 29, the second ring sleeve 30 is arranged at the outer side of the second dust hopper 24, a through hole is arranged on the dust collecting chamber 33 close to the second ring sleeve 30, a bobbin 31 is arranged at the outer side of the through hole, a rope 32 is tied on the first ring sleeve 29, the rope 32 penetrates through the second ring sleeve 30 above and is connected with the bobbin 31 outside the dust collecting chamber 33, two ropes 32 can be tensioned to pull the two semicircular cover plates 25 to a horizontal state to cover and seal the lower end part of the first dust hopper 23, meanwhile, the two semicircular cover plates 26 are pulled to be horizontal to cover and seal the lower end part of the second ash bucket 24, the two ropes 32 are loosened, and the two semicircular cover plates 25 and the two semicircular cover plates 26 rotate around the shaft 27 under the action of self gravity and dust pressure to open the first ash bucket 23 and the second ash bucket 24.
Under normal operating condition, the rope 32 is in the tensioning state, the semicircular cover plate 25 and the semicircular cover plate 26 are pulled to the horizontal state by the rope 32, the lower end part of the first ash bucket is sealed by the two semicircular cover plates 25, the lower end part of the second ash bucket is sealed by the two semicircular cover plates 26, when a certain amount of dust in the ash bucket is accumulated, the rope 32 is released through the winder 31, the semicircular cover plate 25 and the semicircular cover plate 26 rotate around the shaft 27 under the action of gravity and dust pressure to open the first ash bucket 23 and the second ash bucket 24, and the dust falls to the bottom of the dust collecting chamber 33 from the ash bucket and is cleaned and transported out.
The invention has simple structure and ingenious conception, and the dust filtering device is formed by the intermittent air inlet sealing device and the filter cartridge sleeved inside and outside, so that a back blowing device is omitted, the working efficiency is improved, the dust-containing gas can realize self-cleaning of the filter cartridge while filtering, the traditional filter cartridge filtering device is obviously improved, and good technical effects are obtained.
Claims (7)
1. An automatic back-blowing dust treatment device for filter cylinders is characterized by comprising a shell (1), wherein a first filter cylinder (2) is arranged in the shell (1), a second filter cylinder (3) is sleeved outside the first filter cylinder (2), filter layers are arranged on the inner surface of the first filter cylinder (2) and the outer surface of the second filter cylinder (3), a first chamber (4) is arranged in the first filter cylinder (2), a first gas inlet (6) is formed in the upper end of the first chamber (4), an annular second chamber (5) is formed between the second filter cylinder (3) and the shell (1), an annular second gas inlet (7) is formed in the upper end of the second chamber (5), the lower ends of the first chamber (4) and the second chamber (5) are of a sealable structure, a third chamber (8) is formed between the first filter cylinder (2) and the second filter cylinder (3), the third chamber (8) is of a structure with the upper end sealed and the lower end open, and the first gas inlet (6) is a step-shaped through hole formed by communicating an upper round hole and a lower hole with, the second gas inlet (7) is a step-shaped through hole formed by communicating two circular holes with different diameters from top to bottom, a first piston (9) is arranged in the first gas inlet (6), the first gas inlet (6) is sealed when the first piston (9) is positioned in a small-diameter hole of the first gas inlet (6), the first gas inlet (6) is opened when the first piston is positioned in a large-diameter hole, a circular second piston (10) is arranged in the second gas inlet (7), the second gas inlet (7) is sealed when the second piston (10) is positioned in a small-diameter hole of the second gas inlet (7), and the second gas inlet (7) is opened when the second piston (10) is positioned in a large-diameter hole; when the first gas inlet (6) is a stepped through hole with a large diameter at the top and a small diameter at the bottom, the second gas inlet (7) is a stepped through hole with a small diameter at the top and a large diameter at the bottom, and vice versa; a support (12) which slides up and down is arranged above the inner part of the shell (1), a first connecting rod (11) and a plurality of second connecting rods (13) are fixedly connected below the support (12), the lower end part of the first connecting rod (11) is connected with a first piston (9), and the lower end parts of the plurality of second connecting rods (13) are connected with a second piston (10); when a first piston (9) is positioned in a small-diameter hole of a first gas inlet (6) to seal the first gas inlet (6), a second piston (10) is positioned in a large-diameter hole of a second gas inlet (7) to open the second gas inlet (7), then a support (12) moves to drive the first piston (9) to move into the large-diameter hole of the first gas inlet (6) to open the first gas inlet (6), the second piston (10) is positioned in the large-diameter hole of the second gas inlet (7) to open the second gas inlet (7), the support (12) continues to move to drive the second piston (10) to move into the small-diameter hole of the second gas inlet (7) to seal the second gas inlet (7), the first piston (9) is positioned in the large-diameter hole of the first gas inlet (6) to open the first gas inlet (6), and then the support (12) reversely moves to drive the second piston (10) to move into the large-diameter hole of the second gas inlet (7) to open the second gas inlet (7) When the first piston (9) is positioned in a large-diameter hole of the first gas inlet (6) to open the first gas inlet (6) during the inlet (7), then the support (12) continues to move reversely to drive the first piston (9) to move to a small-diameter hole of the first gas inlet (6) to seal the first gas inlet (6), the second piston (10) is positioned in a large-diameter hole of the second gas inlet (7) to open the second gas inlet (7), and then the support (12) moves to form a circular motion.
2. The automatic filter cartridge blowback dust treatment device of claim 1, wherein the bracket (12) comprises a circular ring (14), a concentric disc (15) is mounted in the center of the circular ring (14), the circular ring (14) and the disc (15) are connected through a plurality of third connecting rods (16) which are uniformly distributed on the circumference and have rectangular vertical cross sections, circular reinforcing ribs are arranged among the plurality of third connecting rods (16), a first connecting rod (11) is connected to the lower side of the disc (15), and a second connecting rod (13) is connected to the lower side of the third connecting rod (16).
3. The automatic filter cartridge blowback dust treatment device according to claim 2, wherein a plurality of projections (17) having a rectangular vertical cross section are provided on the outer edge of the ring (14), a vertical U-shaped chute (18) is provided in the housing (1), the projections (17) slide up and down in the chute (18), balls are mounted on the left and right sides of the projections (17), a fourth connecting rod (19) is fixedly connected above the third connecting rod (16), a nut (20) is fixedly connected to the upper ends of the plurality of fourth connecting rods (19) together, a reciprocating screw (21) is screwed in the center of the nut (20), a motor (22) having a speed reducer is fixed on the housing (1), and the speed reducer (22) and the reciprocating screw (21) are coaxially connected.
4. The automatic back-blowing dust treatment device for filter cartridges as claimed in claim 1, wherein in order to realize the intermittent air-intake sealing of the first gas inlet (6) and the second gas inlet (7), the second gas inlet (7) is independently supplied with air during the process that the first piston (9) enters and exits the small-diameter hole of the first gas inlet (6); when the first piston (9) is positioned in the large-diameter hole of the first gas inlet (6) and the second piston (10) is positioned in the large-diameter hole of the second gas inlet (7), the two ports simultaneously admit gas; in the process that the second piston (10) enters and exits the small-diameter hole of the second gas inlet (7), the first piston (9) is positioned in the large-diameter hole of the first gas inlet (6), and the first gas inlet (6) independently enters gas; the intermittent sealing is realized by the circulation of three air inlet sealing states.
5. The automatic blowback dust handling apparatus of claim 4, wherein when the large diameter hole of the first gas inlet (6) is above and the small diameter hole is below, the large diameter hole of the second gas inlet (7) is below and the small diameter hole is above; the movement process of the bracket (12) in the state is as follows: when the support (12) is positioned at the top, the first piston (9) is positioned in the large-diameter hole of the first gas inlet (6) to open the first gas inlet (6), and the second piston (10) is positioned in the small-diameter hole of the second gas inlet (7) to block and seal the second gas inlet (7); then the support (12) moves downwards to drive the second piston (10) to move from the small-diameter hole of the second gas inlet (7) to the large-diameter hole, the second gas inlet (7) is changed from a sealing state to an opening state, and in the process, the first piston (9) is positioned in the large-diameter hole of the first gas inlet (6) to open the first gas inlet (6); then the support (12) continues to move downwards to drive the first piston (9) to move from the large-diameter hole of the first gas inlet (6) to the small-diameter hole, the first gas inlet (6) is changed from an open state to a sealed state, and in the process, the second piston (10) is positioned in the large-diameter hole in the second gas inlet (7) to open the second gas inlet (7); then the bracket (12) drives the first piston (9) to move downwards in the small-diameter hole of the first gas inlet (6) to the lowest end, in the process, the first gas inlet (6) is blocked and sealed by the first piston (9), and the second piston (10) is positioned in the large-diameter hole of the second gas inlet (7) to open the second gas inlet (7); then the support (12) moves upwards to drive the first piston (9) to move from the small-diameter hole of the first gas inlet (6) to the large-diameter hole, the first gas inlet (6) is changed from a sealing state to an opening state, and in the process, the second piston (10) is positioned in the large-diameter hole of the second gas inlet (7) to open the second gas inlet (7); then the support (12) continues to move upwards to drive the second piston (10) to move into the small-diameter hole from the large-diameter hole of the first gas inlet (7), the second gas inlet (7) is changed from an open state to a sealed state, and in the process, the first piston (9) is positioned in the large-diameter hole of the first gas inlet (6) to open the first gas inlet (6); then the bracket (12) drives the second piston (10) to move upwards to the uppermost end in the small-diameter hole of the second gas inlet (7), the second gas inlet (7) is blocked and sealed by the second piston (10) in the process, and the first piston (9) is positioned in the large-diameter hole of the first gas inlet (6) to open the first gas inlet (6); the support (12) is then moved downwardly to form a circular motion.
6. The automatic back-blowing dust treatment device for the filter cartridges as claimed in claim 4, wherein, in order to seal the lower ends of the first chamber (4) and the second chamber (5), the lower end of the first chamber (4) is provided with a first ash bucket (23) in a cone shape, the first chamber (4) is communicated with the first ash bucket (23), the lower end of the first ash bucket (23) is provided with two semicircular cover plates (25), and the two semicircular cover plates (25) are hinged to form a circular plate to cover and seal the lower end of the first ash bucket (23); the lower end of the second chamber (5) is provided with an annular second ash bucket (24) with a trapezoidal vertical section, the second chamber (5) is communicated with the second ash bucket (24), the lower end part of the second ash bucket (24) is provided with two semicircular cover plates (26), and the two semicircular cover plates (26) are hinged to form a circular cover plate to cover the lower end part of the second ash bucket (24).
7. The automatic dust disposal apparatus with reverse blowing function for filter cartridges of claim 6, wherein, in order to open the first dust hopper (23) and the second dust hopper (24), a dust collecting chamber (33) having a truncated cone shape is connected to the lower end of the housing (1), the dust collecting chamber (33) surrounds the first dust hopper (23) and the second dust hopper (24), a horizontal shaft (27) is disposed in the dust collecting chamber (33), two semicircular cover plates (25) are symmetrically disposed about the shaft (27) and can rotate about the shaft (27) to open the first dust hopper (23), two semicircular cover plates (26) are symmetrically disposed about the shaft (27) and can rotate about the shaft (27) to open the second dust hopper (24), the semicircular cover plates (25) and the semicircular cover plates (26) are connected by a plurality of fifth connecting rods (28), a first annular sleeve (29) is disposed at the arc top of the semicircular cover plates (26), a second lantern ring (30) is arranged above the first ring sleeve (29), the second lantern ring (30) is arranged on the outer side of the second ash bucket (24), a through hole is formed in the dust collection chamber (33) and is close to the second lantern ring (30), a winder (31) is installed on the outer side of the through hole, a rope (32) is tied on the first ring sleeve (29), and the rope (32) penetrates through the second lantern ring (30) above and the through hole to be connected with the winder (31) outside the dust collection chamber (33).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811161760.5A CN109091974B (en) | 2018-09-30 | 2018-09-30 | Automatic back-blowing dust treatment device for filter cartridge |
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| CN201811161760.5A CN109091974B (en) | 2018-09-30 | 2018-09-30 | Automatic back-blowing dust treatment device for filter cartridge |
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| CN109091974A CN109091974A (en) | 2018-12-28 |
| CN109091974B true CN109091974B (en) | 2020-10-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109603351B (en) * | 2019-01-11 | 2024-07-09 | 西安长庆科技工程有限责任公司 | Novel piston type breathing device and system for cleaning filter cartridge |
| CN113332796B (en) * | 2021-05-31 | 2022-09-02 | 佛山市南海九洲普惠风机有限公司 | Dust removal filter |
| CN114682039B (en) * | 2022-03-17 | 2023-08-08 | 沈阳理工大学 | Dust collector for coal mine safety production tunnel |
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| EP0146680B1 (en) * | 1983-10-25 | 1986-11-26 | Herbert Hüttlin | Filter arrangement for dedusting of gases especially in fluidized bed apparatus |
| CN107309100A (en) * | 2017-07-27 | 2017-11-03 | 广州市番禺盛达穗南有限公司 | Storage pot type classification sorting system with dedusting function |
| CN206859144U (en) * | 2017-03-31 | 2018-01-09 | 徐州徐工环境技术有限公司 | Sweeping machine refuse disposal installation and sweeping machine |
| CN206911000U (en) * | 2017-07-06 | 2018-01-23 | 安徽国能亿盛环保科技有限公司 | LCDM long bag pulse dust collector working under low pressure |
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- 2018-09-30 CN CN201811161760.5A patent/CN109091974B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146680B1 (en) * | 1983-10-25 | 1986-11-26 | Herbert Hüttlin | Filter arrangement for dedusting of gases especially in fluidized bed apparatus |
| CN206859144U (en) * | 2017-03-31 | 2018-01-09 | 徐州徐工环境技术有限公司 | Sweeping machine refuse disposal installation and sweeping machine |
| CN206911000U (en) * | 2017-07-06 | 2018-01-23 | 安徽国能亿盛环保科技有限公司 | LCDM long bag pulse dust collector working under low pressure |
| CN107309100A (en) * | 2017-07-27 | 2017-11-03 | 广州市番禺盛达穗南有限公司 | Storage pot type classification sorting system with dedusting function |
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Effective date of registration: 20200914 Address after: Magi Road, Changshu high tech Industrial Development Zone, Suzhou City, Jiangsu Province, No. 1 215500 Applicant after: SUZHOU JUHUIBANG NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 450000 Zhengzhou University of Light Industry, 5 Dongfeng Road, Jinshui District, Zhengzhou, Henan Applicant before: Jin Rui |
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