CN116272174A - Dismounting structure of dust remover filter cylinder and high negative pressure dust remover - Google Patents

Abstract

The invention discloses a disassembling and assembling structure of a filter cylinder of a dust remover and a high negative pressure dust remover, wherein the disassembling and assembling structure comprises a flower plate, the filter cylinder and a jacking mechanism, wherein a limit bolt is arranged on the lower end face of the flower plate, a connecting lug matched with the limit bolt is arranged at the upper end of the filter cylinder, a clamping groove is formed in the connecting lug, a notch is formed in one end of the clamping groove, and the jacking mechanism is positioned below the filter cylinder. The high negative pressure dust remover comprises a filtering section, a dust collecting section and a blowing system, wherein the filtering section comprises a filtering box body, a filtering cylinder, an access door and a jacking mechanism, the side part of the filtering box body is provided with the access door, the filtering cylinder and the jacking mechanism are arranged in the filtering cylinder, the upper part of the filtering box body is provided with an air outlet box body, the lower part of the filtering box body is provided with an ash bucket, the side end of the air outlet box body is provided with an air outlet, the blowing system is arranged above the air outlet box body, the side end of the ash bucket is provided with an air inlet, and the bottom of the ash bucket is provided with an ash collecting barrel. The filter cartridge is very convenient to install and detach, a large amount of time can be saved, meanwhile, the inside of the dust remover operates stably, and the problem of poor equipment purifying effect caused by excessive turbulence is avoided.

Description

Dismounting structure of dust remover filter cylinder and high negative pressure dust remover

Technical Field

The invention relates to a disassembly and assembly structure of a filter cartridge of a dust remover and a high negative pressure dust remover, and belongs to the technical field of industrial dust removal.

Background

The high negative pressure dust remover is a common device in industrial production, and is widely applied to the industrial fields of steel, electric power, food, metallurgy, chemical industry and the like. The main function of the high negative pressure dust remover is to separate dust from flue gas, the dust remover can be divided into a plurality of types according to different working principles and structures, wherein the filter cartridge type dust remover is a common type of dust remover, and the filter cartridge type dust remover uses a filter cartridge as a filter element.

The high negative pressure dust remover can be divided into a round high negative pressure dust remover and a square high negative pressure dust remover according to different shapes of the outer shell at the upper part of the high negative pressure dust remover, the filter cartridge is used as a core component of the high negative pressure dust remover, the filter cartridge of the square high negative pressure dust remover needs to be replaced after a certain time, the filter cartridge is usually obliquely inserted, the filter cartridge is generally removed from the side surface of the shell when being replaced, but the square high negative pressure dust remover is easy to deform and lose efficacy in a high negative pressure state, certain requirements are met on the thickness and structural design of metal plates, and the round high negative pressure dust remover can resist high negative pressure and cannot be provided with holes for replacing the filter cartridge on the shell, so that the structure is relatively more complex, the filter cartridge is inconvenient to assemble and disassemble, the filter cartridge replacement process needs to spend a great amount of time and labor and has complex operation.

At present, two fixing modes of a filter cylinder of a high negative pressure dust remover exist in the industry:

mode one: the filter cartridge is directly welded on a pattern plate in the dust remover, a bottom cover of the filter cartridge is provided with an opening, the filter cartridge needs to pass through the bracket, and the filter cartridge is fixed by bolts after aligning the holes (figure 1);

mode two: the filter cartridge adopts a six-lug quick-release filter cartridge, the upper end cover of the filter cartridge adopts a six-claw plastic end cover, a clamping groove with six claws is formed in the mounting cap, the upper end of the filter cartridge is adhered with a sealing ring, the mounting cap of the filter cartridge is fixed on the mounting plate, and then the six claws of the filter cartridge are clamped into the six clamping grooves of the mounting cap for rotation, so that the sealing ring is fully contacted with the top of the mounting cap (figure 2).

However, when the dust generated in the production process of the high negative pressure dust remover is removed effectively due to the lengthening of the service time, the filter cartridge used by the high negative pressure dust remover needs to be disassembled for cleaning or replaced for maintenance. The two problems mentioned above are in this process:

the mode one structure needs personnel to get into inside the dust remover, embolias the filter tube from the bottom in the support, then screw up with the spanner after aiming at the mounting hole again, and its shortcoming is that installation space needs to be big enough to personnel need get into inside the dust remover, and the operation is inconvenient, and easy contact dust is infected at the inside respiratory track of dust remover for a long time, causes the injury to personnel.

The second mode structure, need great power rotatory when dismantling, because the access door is only on one side, the section of thick bamboo that is close to the access door is convenient for aim at the inside draw-in groove of installation cap, and for the section of thick bamboo installation that is far away from the access door when dismantling then need get into the inside draw-in groove that aims at of equipment to because equipment height exceeds 2m, there is the risk of toppling when the atress is unstable during the overhead operation, the section of thick bamboo is liable to damage like this.

In addition, the air inlet guide plate mode of the high negative pressure dust remover in the industry has two modes:

mode one: the air flow can flow out from the upper part of the wind shield, and most of the air flow flows downwards through the guide and enters the interior of the equipment from the bottom;

mode two: the air flow is guided by the wind shield, so that the air flow enters the equipment from the bottom;

however, the two structures have turbulence in the high negative pressure dust remover, and the average wind speed in the equipment is higher, which is not beneficial to the filtration of the filter cartridge.

Disclosure of Invention

The invention aims to provide a disassembly and assembly structure of a filter cylinder of a dust remover and a high negative pressure dust remover so as to overcome the defects in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

on the one hand, the invention provides a disassembling and assembling structure of a filter cylinder of a dust remover, which comprises a flower plate, a filter cylinder and a jacking mechanism, wherein a limit bolt is arranged on the lower end face of the flower plate, a connecting lug matched with the limit bolt is arranged at the upper end of the filter cylinder, a clamping groove is formed in the connecting lug, a notch is formed in one end of the clamping groove, and the jacking mechanism is positioned below the filter cylinder and has a lifting function for attaching the filter cylinder to the flower plate.

Further, climbing mechanism includes jacking backup pad, hand wheel, screw rod and roof plate, the jacking backup pad is fixed on the dust remover box inner wall of straining the below to be equipped with the screw in the jacking backup pad, the screw rod is installed in the screw interlude, install the lower extreme of screw rod the hand wheel, install the upper end of screw rod the roof plate makes the screw rod reciprocate in the screw through rotating the hand wheel.

Further, the top plate is formed by mutually welding a top ring and a top plate, the middle part of the top ring is of a hollow structure, the periphery of the top plate is welded at the lower end of the top ring, and the lower end of the top plate is fixedly connected with the top of the screw rod.

Furthermore, three limit bolts are arranged above each filter cylinder, the three limit bolts are respectively positioned at three vertexes of the equilateral triangle, and meanwhile, three connecting lugs are arranged at the upper end of each filter cylinder, and each connecting lug corresponds to one limit bolt during installation.

Further, the notch direction of each clamping groove is kept consistent, and the notch direction is the rotation direction of the filter cartridge during installation.

Further, the jacking mechanism comprises a jacking plate and a telescopic driving mechanism, wherein the jacking plate is provided with a uniform flow hole, the telescopic driving mechanism is arranged at the lower end of the jacking plate, and cylinder jacking or other jacking devices can be adopted.

On the other hand, the invention provides a high negative pressure dust remover which comprises a filtering section, a dust collecting section and a blowing system, wherein the filtering section comprises a filtering box body, a filter cylinder, an access door and a jacking mechanism, the access door is arranged on the side part of the filtering box body, the filter cylinder and the jacking mechanism are arranged inside the filtering box body, an air outlet box body is arranged above the filtering box body, an ash bucket is arranged below the filtering box body, an air outlet is arranged at the side end of the air outlet box body, the blowing system is arranged above the filtering box body, an air inlet is arranged at the side end of the ash bucket, the upper end of the ash bucket is communicated with the bottom end of the filtering box body, and an ash collecting barrel is detachably arranged at the bottom of the ash bucket.

Further, the jetting system comprises an air bag, a pulse electromagnetic valve, a jetting pipe and a venturi, wherein the inlet of the air bag is provided with a pressure regulating filter, the outlet of the air bag is connected with the jetting pipe, the air inlet pipe of the jetting pipe is provided with the pulse electromagnetic valve, the pulse electromagnetic valve is connected with a pulse controller, the outlet of the jetting pipe is opposite to the venturi, and the venturi is arranged at the outlet of the upper end of the filter cylinder.

Further, a reserved air outlet is formed in the top of the air outlet box body, a micro-pressure difference transmitter is arranged on the side portion of the filtering box body, a pneumatic butterfly valve is arranged between the ash collecting barrel and the ash bucket, and casters are arranged at the bottom of the ash collecting barrel.

Further, the top of the outlet end of the air inlet extends forwards to form an upper sealing plate, a plurality of air flow holes are formed in the upper sealing plate, a wind shield is arranged at the front end of the upper sealing plate, and the wind shield is obliquely arranged.

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

(1) The filter cartridge is convenient to install and detach, the filter cartridge can be quickly and simply replaced without tools, and the lifting mechanism at the bottom can prevent unnecessary damage caused by falling of the filter cartridge during detachment, so that a large amount of time is saved, and the dust removal efficiency is improved.

(2) The optimization of the air inlet structure can enable the interior of the dust remover to stably operate, avoid the problem of poor equipment purification effect caused by excessive turbulence, effectively protect the filter cartridge, prevent the filter cartridge from being directly impacted by air flow, and shorten the service life of the filter cartridge.

(3) The safety of maintenance personnel can be effectively protected, long-time work in equipment is avoided, and the production efficiency of the equipment is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic illustration of a prior art cartridge retention;

FIG. 2 is a schematic diagram of a prior art cartridge retention arrangement;

FIG. 3 is a schematic view of a cartridge assembly and disassembly structure according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram of a lifting mechanism in the first embodiment;

FIG. 5 is a schematic diagram of a disassembling and assembling structure of a second embodiment of the present invention;

fig. 6 and 7 are schematic structural views of a high negative pressure dust collector according to a third embodiment of the present invention;

FIG. 8 is a schematic view showing an exploded structure of a high negative pressure dust collector according to a third embodiment;

FIG. 9 is a schematic view of an air inlet of a high negative pressure precipitator in a third embodiment;

FIG. 10 is a simulated view of the internal CFD of the device after intake of the air scoop;

fig. 11 is a schematic diagram of the operation of the high negative pressure precipitator.

Marked in the figure as: 1-filter cartridge, 2-flower plate, 3-filter cartridge bracket, 4-mounting cap, 5-limit bolt, 6-lifting mechanism, 601-screw, 602-hand wheel, 603-top ring, 604-top plate, 605-lifting support plate, 7-lifting plate, 8-filter box, 9-air outlet box, 10-ash bucket, 11-ash collecting barrel, 12-access door, 13-air inlet, 14-air outlet, 15-air bag, 16-pressure regulating filter, 17-pulse electromagnetic valve, 18-pulse controller, 19-micro pressure difference transmitter, 20-reserved air outlet, 21-jetting pipe, 22-venturi, 23-pneumatic butterfly valve, 24-level gauge reserved mounting port, 25-wind deflector, 26-airflow hole, 27-connecting lug, 28-truckle, 29-landing leg.

Detailed Description

The invention will now be described in detail with reference to the drawings and specific examples.

Example 1

As shown in fig. 3 and 4, a disassembly and assembly structure of a filter cartridge of a dust remover comprises a filter cartridge 1, a pattern plate 2 and a jacking mechanism 6, wherein a limit bolt 5 is arranged on the lower end face of the pattern plate 2, a connecting lug 27 matched with the limit bolt 5 is arranged at the upper end of the filter cartridge 1, a clamping groove is formed in the connecting lug 27, one end of the clamping groove is provided with a notch, and the jacking mechanism 6 is positioned below the filter cartridge 1 and has a lifting function for attaching the filter cartridge to the pattern plate.

In this embodiment, climbing mechanism 6 includes jacking backup pad 605, hand wheel 602, screw rod 601 and top tray, jacking backup pad 605 is fixed on the dust remover box inner wall of straining 1 below to be equipped with the screw on the jacking backup pad 605, screw rod 601 alternates and installs in the screw, and hand wheel 602 is installed to the lower extreme of screw rod 601, and the top tray is installed to the upper end of screw rod 601, makes screw rod 601 reciprocate in the screw through rotating hand wheel 602.

The top plate is formed by mutually welding a top ring 603 and a top plate 604, the middle part of the top ring is of a hollow structure, the periphery of the top plate 604 is welded at the lower end of the top ring 603, and the lower end of the top plate 604 is fixedly connected with the top of the screw 601. The advantage of doing so is that can reduce the frictional force between filter cartridge bottom cover and the roof plate in the jacking process, the maintenance personal of being convenient for can use less power rotatory triangle arrow formula hand wheel for filter cartridge rises and guarantees that the sealed tight position of filter cartridge can not seal poorly, leads to leaking the problem.

Preferably, three limit bolts 5 are arranged above each filter cartridge 1, the three limit bolts 5 are respectively located at three vertexes of an equilateral triangle, and simultaneously, three connecting lugs 27 are arranged at the upper end of each filter cartridge 1, and each connecting lug 27 corresponds to one limit bolt 5 during installation.

The principle of the disassembly and assembly mechanism is as follows: the limiting bolt 5 is welded on the flower plate 2, the three-ear filter cartridge can be positioned through the three ears and the limiting bolt 5, and the three-ear filter cartridge is further rotated to be hung in the equipment, so that the structure is convenient for the quick positioning of the filter cartridge 1, the problem that the physical strength of a maintainer is lost due to long-time lifting of the filter cartridge can be avoided, the maintainer can temporarily stand in the equipment through the cross beam (supporting plate) of the lifting mechanism, the maintainer can be kept stable and can be more easily fixed on the limiting bolt, and the problem that the filter cartridge falls down and the like is further guaranteed; then, when the bottom of the jacking mechanism is rotated, the hand wheel is jacked (the rotation can lead to synchronous rotation of the filter cartridge, so that the screwing rotation direction is consistent with the direction of the three-ear filter cartridge and the direction of the limit bolt, the three-ear filter cartridge stops rotating in the lifting process), the sealing strip of the three-ear filter cartridge is tightly attached to the flower plate, and the sealing compaction position of the filter cartridge is ensured not to be sealed poorly, so that the leakage problem is caused.

Example two

As shown in fig. 5, the difference between the present embodiment and the first embodiment is that a jacking mechanism with another structure is adopted, the jacking mechanism can be replaced by a jacking plate 7, the jacking plate 7 can be controlled to be positioned by a cylinder jacking or other jacking devices, and a plurality of holes are formed in the jacking plate 7, so that the structure has a flow equalizing effect, and is beneficial to improving the purifying efficiency of the filter cartridge;

example III

According to the embodiment shown in the figures 6 to 8, the high negative pressure dust remover comprises a filtering section, a dust collecting section and a blowing system, wherein the filtering section comprises a filtering box body 8, a filtering cylinder 1, an access door 12 and a jacking mechanism 6, the access door 12 is arranged on the side part of the filtering box body, the filtering cylinder 1 and the jacking mechanism 6 are arranged in the filtering box body, an air outlet box body 9 is arranged above the filtering cylinder body, an ash bucket 10 is arranged below the filtering cylinder body, an air outlet 14 is arranged at the side end of the air outlet box body 9, the blowing system is arranged above the air outlet box body, an air inlet 13 is arranged at the side end of the ash bucket 10, the upper end of the ash bucket 10 is communicated with the bottom end of the filtering box body 8, and an ash collecting barrel 11 is detachably arranged at the bottom of the ash bucket 10.

In this embodiment, the blowing system includes an air bag 15, a pulse electromagnetic valve 17, a blowing pipe 21 and a venturi 22, where the inlet of the air bag 15 is provided with a pressure-regulating filter 16, the outlet is connected with the blowing pipe 21, the air inlet pipe of the blowing pipe 21 is provided with the pulse electromagnetic valve 17, the pulse electromagnetic valve 17 is connected with a pulse controller 18, the outlet of the blowing pipe 21 is opposite to the venturi 22, and the venturi 22 is installed at the outlet of the upper end of the filter cartridge 1.

In this embodiment, a reserved air outlet 20 is formed in the top of the air outlet box 9, a micro-pressure difference transmitter 19 is mounted on the side of the filter box 8, a pneumatic butterfly valve 23 is arranged between the ash collecting barrel 11 and the ash bucket 10, and a caster 28 is arranged at the bottom of the ash collecting barrel 11.

As shown in fig. 9, the top of the outlet end of the air inlet 13 extends forward to form an upper sealing plate, a plurality of airflow holes 26 are formed in the upper sealing plate, a wind shield 25 is mounted at the front end of the upper sealing plate, and the wind shield 25 is obliquely arranged.

As shown in FIG. 10, the airflow stabilization in the equipment is facilitated by opening an airflow hole at the top of the outlet end of the air inlet; through CFD simulation analysis, when the wind speed of the air inlet is 8.92 m/s, the average wind speed in the equipment in the first background technology mode is 1.87m/s, but because the interior of the dust remover interacts with the air flow flowing out of the lower part of the wind shield, turbulent flow is formed; and the average wind speed in the equipment in the second background technology mode is 2.328m/s, and the local turbulence is accompanied, when the structure is selected, the average wind speed in the equipment is 2.1m/s, and the turbulence in the equipment is obviously reduced, so that the stable operation in the equipment and the purification efficiency of the equipment are greatly improved.

As shown in fig. 11, the working principle of the high negative pressure dust remover is as follows: the dust remover mainly comprises a filtering section, a dust collecting section, an electric control and blowing system and the like. And the whole module design of the equipment can be convenient for field expansion and use, and provides convenience and practicability for application.

1. And (3) filtering:

the section integrates a filter cylinder, an access door, a jacking mechanism and a blowing system part;

wherein the box body is formed by welding and assembling, the material adopts a cold-rolled plate, and then spraying is carried out, so that the bright, smooth and scratch-free surface is ensured.

The filter cylinder adopts a self-made filter cylinder, and the installation mode adopts a jacking device to compress and seal, so that dust-containing waste gas generated in various industries such as welding, polishing workshops, welding centers, robot welding lines, plasma laser cutting and blanking production and the like can be effectively solved, and the discharged gas is clean and pollution-free.

The access door is a maintenance operation channel of the filter cylinder and is in a closed state during normal operation, so that the system is sealed and has no leakage.

The jacking mechanism can realize quick assembly disassembly of the filter cartridge, the filter cartridge can be quickly and simply replaced without using tools, and great convenience is provided for manual cleaning of the filter.

The jetting system part comprises a pressure regulating filter, an air bag, an electromagnetic valve, a jetting pipe, a venturi tube and the like, realizes high-pressure pulse ash removal, improves the filtering effect of the filter element and prolongs the service life of the singing filter element.

2. Dust collection section:

the dust collecting section is divided into three main parts of an ash bucket, supporting legs and an ash collecting barrel, the ash bucket is mainly used for collecting and filtering falling dust, the supporting legs are formed by splicing and welding Q235B angle steel and cold-rolled acid cleaning plates, and then a discharge valve is provided with a pneumatic butterfly valve, so that online ash cleaning can be realized.

3. And an electric control system:

all the electric control components are matched with the Shanghai bag or the components of the same brand, and have digital display and differential pressure signal output.

The specific process of the dust remover is as follows:

1. filtration process

Dust-containing air enters an air inlet below the filter through a pipeline; large particles directly fall into the ash bucket below under the action of the guide plate at the inlet; the dust-containing air rises along with the airflow and is filtered by the filter cartridge; clean air is discharged outdoors.

2. Ash removal process

The pulse controller controls the pulse electromagnetic valve to be opened, and compressed air passes through the pulse electromagnetic valve to carry out back blowing ash removal; the filter is instantaneously depressurized, and compressed air is flushed into the filter cylinder through a valve with the top opened; the filter element is strongly back-blown by utilizing the pressure difference between the inside of the filter and the compressed air, so that dust attached to the surface of the filter material is cleared into the ash bucket below.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by equivalent substitution and the like fall within the scope of the present invention. The invention is not related in part to the same as or can be practiced with the prior art.

Claims (10)

1. The utility model provides a dismouting structure of dust remover filter cartridge, its characterized in that includes the checkered plate, strains a section of thick bamboo and climbing mechanism, be equipped with stop bolt on the lower terminal surface of checkered plate, strain a section of thick bamboo upper end and be equipped with stop bolt matched with engaging lug, offered the draw-in groove on the engaging lug, the one end of draw-in groove is opened there is the notch, climbing mechanism is located the below of straining a section of thick bamboo, and it has the raising and lowering functions and is used for straining a section of thick bamboo and checkered plate laminating.

2. The assembly and disassembly structure of a filter cartridge of a dust collector according to claim 1, wherein the jacking mechanism comprises a jacking supporting plate, a hand wheel, a screw rod and a jacking disc, the jacking supporting plate is fixed on the inner wall of a dust collector box body below the filter cartridge, a screw hole is formed in the jacking supporting plate, the screw rod is installed in the screw hole in a penetrating manner, the hand wheel is installed at the lower end of the screw rod, the jacking disc is installed at the upper end of the screw rod, and the screw rod is enabled to move up and down in the screw hole by rotating the hand wheel.

3. The assembly and disassembly structure of a filter cartridge of claim 2, wherein the top plate is formed by welding a top ring and a top plate, the middle part of the top ring is of a hollow structure, the periphery of the top plate is welded at the lower end of the top ring, and the lower end of the top plate is fixedly connected with the top of the screw rod.

4. The disassembling and assembling structure of a filter cartridge of a dust remover according to claim 1, wherein three limit bolts are arranged above each filter cartridge, the three limit bolts are respectively positioned at three vertexes of an equilateral triangle, and three connecting lugs are arranged at the upper end of each filter cartridge, and each connecting lug corresponds to one limit bolt during installation.

5. The removable structure of claim 4, wherein the notch direction of each of the plurality of slots is the direction of rotation of the cartridge when installed.

6. The removable structure of a filter cartridge of claim 1, wherein the jacking mechanism comprises a jacking plate and a telescopic driving mechanism, the jacking plate is provided with a uniform flow hole, and the telescopic driving mechanism is arranged at the lower end of the jacking plate.

7. The utility model provides a high negative pressure dust remover, its characterized in that, includes filter segment, dust collection section and jetting system, the filter segment includes the filter tank body, strains a section of thick bamboo, access door and climbing mechanism, it has the access door to open to strain the box lateral part, and inside is equipped with strain a section of thick bamboo and climbing mechanism according to any one of claims 1 to 6, and the top is provided with out the bellows, and the below is provided with the ash bucket, it is equipped with the air outlet to go out bellows side, and the jetting system is installed to the top, ash bucket side is equipped with the air intake, and ash bucket upper end is linked together with the bottom of filter tank body, and the bottom demountable installation of ash bucket has the album ash bucket.

8. The high negative pressure dust remover according to claim 7, wherein the blowing system comprises an air bag, a pulse electromagnetic valve, a blowing pipe and a venturi, wherein the inlet of the air bag is provided with a pressure regulating filter, the outlet of the air bag is connected with the blowing pipe, the air inlet pipe of the blowing pipe is provided with the pulse electromagnetic valve, the pulse electromagnetic valve is connected with a pulse controller, the outlet of the blowing pipe is opposite to the venturi, and the venturi is arranged at the outlet of the upper end of the filter cylinder.

9. The high negative pressure dust remover according to claim 7, wherein a reserved air outlet is formed in the top of the air outlet box body, a micro-pressure difference transmitter is arranged on the side part of the filtering box body, a pneumatic butterfly valve is arranged between the ash collecting barrel and the ash bucket, and a caster wheel is arranged at the bottom of the ash collecting barrel.

10. The high negative pressure dust remover according to claim 7, wherein the top of the outlet end of the air inlet extends forwards to form an upper sealing plate, a plurality of air flow holes are formed in the upper sealing plate, a wind shield is arranged at the front end of the upper sealing plate, and the wind shield is obliquely arranged.

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