CN110639297B - High-pressure pulse type bag-type dust collector with high airtightness - Google Patents
High-pressure pulse type bag-type dust collector with high airtightness Download PDFInfo
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- CN110639297B CN110639297B CN201910944736.7A CN201910944736A CN110639297B CN 110639297 B CN110639297 B CN 110639297B CN 201910944736 A CN201910944736 A CN 201910944736A CN 110639297 B CN110639297 B CN 110639297B
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- 239000000428 dust Substances 0.000 title claims abstract description 110
- 239000007789 gas Substances 0.000 claims description 91
- 239000002912 waste gas Substances 0.000 claims description 41
- 239000011148 porous material Substances 0.000 claims description 39
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 239000007921 spray Substances 0.000 claims description 25
- 239000011229 interlayer Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 12
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 13
- 230000008021 deposition Effects 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 2
- 238000004887 air purification Methods 0.000 description 11
- 239000013589 supplement Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a high-tightness high-pressure pulse type bag-type dust collector, which comprises an air purifying chamber, wherein the bottom of the air purifying chamber is connected with an ash falling chamber, the diameter of the cylinder of which is gradually reduced from top to bottom, the bottom of the ash falling chamber is connected with an ash deposition chamber, the bottom of the ash deposition chamber is provided with a movable door, an ash removing filter bag assembly and a nozzle assembly are arranged in the air purifying chamber, the nozzle assembly is arranged above the ash removing filter bag assembly, the air purifying chamber is connected with an air outlet pipeline, the air outlet pipeline is communicated with the interior of the air purifying chamber, and the interface of the air outlet pipeline and the air purifying chamber is arranged above; the dust removal filter bag component can prevent a powder layer from being adhered to adjacent filter bags in a large quantity, so that the dust removal effect is greatly improved, the air outlet amount of each pulse nozzle can be close by the nozzle component, and the uniformity of the dust removal effect is improved.
Description
Technical Field
The invention belongs to the technical field of bag-type dust collectors, and particularly relates to a high-tightness high-pressure pulse type bag-type dust collector.
Background
With the rapid development of industry, the environmental pollution problem is also becoming more serious, so there is more demand for the emission of waste gas generated in industrial production, and for some exhaust gas with high dust content, the dust in the gas needs to be filtered before being discharged;
the bag type dust collector is a dry dust filtering device, mainly filters dust through a filter bag, is suitable for capturing fine and dry dust, and dust-containing gas enters the bag type dust collector when the bag type dust collector works. The large-particle dust directly enters the dust hopper under the action of gravity, and the finer dust is filtered by the filter bag, and a layer of dust particles are attached to the surface of the filter bag along with the filtering operation, so that the ventilation effect of the filter bag is reduced, and the dust removal efficiency is reduced, therefore, the filter bag in the bag type dust remover needs to be treated at intervals to remove the dust on the surface of the bag, and the bag type dust remover can normally carry out the dust removal operation;
in the process of dust removal of the pulse type bag-type dust collector in the prior art, due to factors such as the reduction of the kinetic energy of airflow, a layer of thick dust can be attached to a filter bag at one end close to an air inlet earlier, so that the resistance of equipment quickly reaches a set resistance value, an injection pipe can be opened for dust removal, the filter bag at a part far away from the air inlet is far from the degree of dust removal, the dust removal efficiency is reduced, and the dust removal period of the injection pipe is shortened; meanwhile, the pulse bag-type dust collector in the prior art also has the problems of non-uniform air injection amount, poor dust cleaning effect and the like, and the invention provides the following technical scheme in order to solve the problems.
Disclosure of Invention
The invention aims to provide a high-pressure pulse type bag-type dust collector with high airtightness.
The technical problems to be solved by the invention are as follows:
1. in the process of dust removal of the pulse type bag-type dust collector in the prior art, due to factors such as the reduction of the kinetic energy of airflow, a layer of thick dust can be attached to a filter bag at one end close to an air inlet earlier, so that the resistance of equipment quickly reaches a set resistance value, an injection pipe can be opened for dust removal, the filter bag at a part far away from the air inlet is far from the degree of dust removal, the dust removal efficiency is reduced, and the dust removal period of the injection pipe is shortened;
2. in the prior art, when dust attached to the surfaces of filter bags is removed through a dust removal device, the dust on the surfaces of the filter bags splashes to the periphery at a high speed under the influence of the instant expansion of the filter bags, and because the filter bags in the bag-type dust remover are densely distributed, a large amount of dust on the surfaces of the filter bags is splashed to the surfaces of the adjacent filter bags, so that the dust removal is incomplete;
3. in prior art, carry high-pressure gas to the pipeline through gas injection device, make the filter bag take place acutely to vibrate through the jet-propelled shower nozzle, realize the deashing, but because the shower nozzle atmospheric pressure that is close to gas injection device will be less than the shower nozzle atmospheric pressure of keeping away from gas injection device, this also directly leads to the filter bag of different positions when carrying out the deashing, the instantaneous pressure that receives is different, can fully deashing in order to guarantee to keep away from the filter bag that gas injection device shower nozzle corresponds, need promote gas injection device's instantaneous jet-propelled tolerance, but the pressure that the filter bag that the shower nozzle that can lead to being close to gas injection device corresponds received like this is too big.
The purpose of the invention can be realized by the following technical scheme:
a high-pressure pulse type bag-type dust collector with high tightness comprises an air purifying chamber, wherein the bottom of the air purifying chamber is connected with an ash falling chamber with the cylinder diameter gradually reduced from top to bottom, the bottom of the ash falling chamber is connected with an ash deposition chamber, and the bottom of the ash deposition chamber is provided with a movable door;
the dust removing filter bag component and the spray head component are arranged in the air purifying chamber, the spray head component is arranged above the dust removing filter bag component, an air outlet pipeline is connected to the air purifying chamber, the air outlet pipeline is communicated with the interior of the air purifying chamber, an interface of the air outlet pipeline and the air purifying chamber is arranged above the dust removing filter bag component, and the edge of the dust removing filter bag component is fixedly connected with the inner wall of the air purifying chamber in a sealing manner;
the dedusting filter bag assembly comprises an upper clamping plate and a lower clamping plate, wherein a plurality of filter bag fixing holes are distributed in a rectangular array on the lower clamping plate, the side walls of the filter bag fixing holes are fixedly connected with one end of an opening of a filter bag, an interlayer gasket is fixedly arranged on one surface, close to the opening end of the filter bag, of the lower clamping plate, the interlayer gasket and the filter bag fixing holes correspond to each other one by one and are arranged concentrically with each other, a first strip-shaped hole is further formed in the lower clamping plate and separates two adjacent filter bag fixing holes, vent holes are formed in the upper clamping plate, the vent holes correspond to the filter bag fixing holes one by one and are arranged concentrically with each other, the upper clamping plate is fixedly connected with the lower clamping plate through bolts, a vent interlayer is formed between the upper clamping plate and the lower clamping plate;
the shower nozzle subassembly includes the pulse gas-supply pipe, and the pulse gas-supply pipe is one end open-ended pipeline, and the opening one end of pulse gas-supply pipe is connected with air jet system, and the other end of pulse gas-supply pipe is connected with step motor, and step motor slides and sets up on a vertical pole, air jet system is used for to pulse gas-supply intraductal input high-pressure gas, and the bearing has been cup jointed to the both sides of pulse gas-supply pipe, and the bearing rotates with the pulse gas-supply pipe to be connected, and the outer wall of bearing is connected with the one end of dowel steel, and the other end of dowel steel is connected with telescopic cylinder, reciprocates through telescopic cylinder control pulse gas-supply pipe, it has one row of pulse gas transmission hole to open on the.
As a further aspect of the present invention, a protection piece is disposed on an upper surface of the air purification chamber, the protection piece has a rectangular tube structure, one end of the protection piece is connected to the air delivery fan through a pipeline, a docking port is formed on a side wall of the protection piece, one surface of the protection piece, on which the docking port is formed, is fixedly connected to the upper surface of the air purification chamber, a circular hole is formed in the upper surface of the air purification chamber to the docking port, so that an internal cavity of the protection piece is communicated with the air purification chamber, and each docking port corresponds to one pulse jet.
As a further scheme of the invention, the bearing is sleeved with the separation plate, the side wall of the air purifying chamber is provided with a stroke opening, the stroke opening penetrates through the side wall of the air purifying chamber, the upper end and the lower end of the stroke opening are respectively provided with a first slideway and a second slideway, the two ends of the separation plate are respectively inserted into the first slideway and the second slideway, the separation plate and the first slideway and the second slideway are in sliding sealing connection, and the two side edges of the separation plate are in sliding sealing connection with the two side walls of the stroke opening.
As a further scheme of the invention, the pulse spray head comprises a pipeline sticking block, a main fixing block, an air supply fixing block and an air supply straight pipe, wherein a first pore passage penetrating through the pipeline sticking block is formed in the pipeline sticking block, and the pipeline sticking block and the pulse air supply hole are connected in a positioning mode through a clamping structure;
the main fixed block passes through staple bolt and pulse gas-supply pipe fixed connection, and it has the recess to open on the main fixed block, and the second pore that runs through main fixed block is seted up to the bottom of recess, the pipeline tiling sets up in the recess of main fixed block, and the first pore on the pipeline tiling is put through with the second pore of recess bottom on the main fixed block, forms from last pore that the aperture reduces to unchangeable after a definite value gradually to down, wherein, there is tonifying qi fixed block through bolt fixedly connected with on the main fixed block and the pipeline tiling one side that carries on the back mutually, opens the third pore that runs through self and aperture progressively enlarges from top to bottom on the tonifying qi fixed block, the less one end in aperture of third pore on the tonifying qi fixed block is put through with the less one end in aperture of second pore, the one side that the tonifying qi fixed block carried on the back mutually with the main fixed block is through bolt fixedly connected, the air supplementing fixing block is provided with an air supplementing hole, one end of the air supplementing hole is communicated with the side wall of the third hole channel, the other end of the air supplementing hole is connected with an air supplementing pipeline, and a valve is arranged on the air supplementing pipeline.
As a further scheme of the invention, a waste gas inlet is communicated on the side wall of the ash falling chamber, the waste gas inlet and the gas outlet pipeline are arranged on the same side of the bag-type dust collector, an air baffle is arranged in the ash falling chamber, one end of the air baffle close to the waste gas inlet and two adjacent sides of the end are fixedly connected with the inner wall of the ash falling chamber in a sealing manner, a space is reserved between one end of the air baffle far away from the waste gas inlet and the inner wall of the ash falling chamber, the air baffle is arranged above the waste gas inlet, the air baffle comprises a plate body, a plurality of second strip-shaped holes which are arranged in parallel are formed in the plate body, the second strip-shaped holes are vertical to the direction of the waste gas entering the ash falling chamber, and a plurality of turbulence columns are arranged on one surface of the plate body close.
As a further scheme of the invention, one side of the ash falling chamber, which is provided with the waste gas inlet, is provided with a row of air injection pipelines, an air outlet of each air injection pipeline is arranged above the surface, opposite to the turbulent flow column, of the board body, and the air injection pipelines intermittently inject air to blow ash deposited on the surface of the board body to the ash deposition chamber.
The working method of the high-pressure pulse type bag-type dust collector comprises the following steps:
when the filter bag needs to be cleaned:
the stepping motor rotates the pulse gas pipe to enable the gas outlet end of the gas supply straight pipe in the pulse spray head to be vertically downward, and then the pulse gas pipe is driven by the cylinder to move downward to enable the gas supply straight pipe to extend into the filter bag;
firstly, opening a gas transmission fan connected with a pipeline, then opening the gas transmission fan connected with the gas transmission pipeline, introducing high-pressure gas into a ventilation interlayer, enabling the gas pressure in the ventilation interlayer to be higher than that of a space where a filter bag is located, and introducing the high-pressure gas into the space where the filter bag is located through a first strip-shaped hole;
starting the air injection device to instantly inject high-pressure air into the filter bag, so that the filter bag is violently vibrated, and dust on the surface of the filter bag is separated;
when the filter bag finishes dust removal:
the cylinder drives the pulse gas pipe to move upwards to separate the gas supply straight pipe from the filter bag, the stepping motor rotates the pulse gas pipe to enable the gas outlet end of the gas supply straight pipe in the pulse spray head to vertically move upwards, the cylinder continues to drive the pulse gas pipe to move upwards to enable the pulse spray head to enter the cavity of the protection part, then the valve on the gas pipeline is closed to prevent waste gas from being discharged through the gas pipeline.
The invention has the beneficial effects that:
1. the invention arranges the air baffle above the waste gas inlet, one end of the air baffle close to the waste gas inlet and two adjacent sides of the end are fixedly connected with the inner wall of the ash falling chamber in a sealing way, one end of the air baffle far away from the waste gas inlet and the inner wall of the ash falling chamber leave a certain space, the plate body of the air baffle is provided with a plurality of second strip-shaped holes which are arranged in parallel, the second strip-shaped holes are vertical to the direction of the waste gas entering the ash falling chamber, one side of the plate body close to the waste gas inlet is provided with a plurality of turbulent flow columns, when the waste gas is introduced into the ash falling chamber through the waste gas inlet, part of large-particle dust is deposited and enters the ash deposition chamber after the waste gas is disturbed and decelerated through the turbulent flow columns, the decelerated airflow can more uniformly enter the air cleaning chamber from the second strip-shaped holes along with the rapid reduction of the flow velocity, thereby improving the uniformity of the ash deposition velocity of the filter bag at each position of the air cleaning chamber and, the ash removal efficiency is improved.
2. According to the dust removal filter bag assembly, the ventilation interlayer is formed between the upper clamping plate and the lower clamping plate and is connected with the gas transmission fan through the gas transmission pipeline, when the filter bag dust remover cleans gas and removes dust, the valve on the gas transmission pipeline is closed, waste gas after dust removal is sprayed out from the vent holes in the upper clamping plate and then is discharged along the gas outlet pipeline, when pulse oscillation dust removal is carried out, high-pressure gas is input into the ventilation interlayer through the gas transmission pipeline and is downwards sprayed along the first strip-shaped holes, and dust which leaves the filter bag at high speed due to oscillation moves downwards under the influence of the downwards sprayed high-pressure gas, so that a powder layer is prevented from being adhered to the adjacent filter bags in a large quantity, and the dust removal effect is greatly.
3. The pulse gas pipe is provided with a row of pulse nozzles, each pulse nozzle comprises a pipe sticking block, a main fixing block, an air supplement fixing block and an air supply straight pipe, each pulse nozzle forms a Venturi tube structure through a first pore passage, a second pore passage and a third pore passage, when the pulse gas pipe is inflated through an air injection device, air can be supplemented into the pulse nozzles through the air supplement pipes due to the Venturi effect, so that the air output of the pulse nozzles is increased, the pulse dust removal effect is improved, in the actual operation, the air input is controlled by adjusting valves on the air supplement pipes, the air output of each pulse nozzle can be similar, the uniformity of the dust removal effect is improved, and the conditions that the dust removal effect of filter bags corresponding to the pulse nozzles with low air pressure is poor, and the filter bags corresponding to the pulse nozzles with high air pressure are damaged easily due to overlarge pressure are avoided.
4. Through the sliding seal structure between the separation plate sleeved on the bearing and the air purifying chamber, the air purifying chamber can keep a sealed environment while the cylinder drives the pulse gas pipe to move up and down, so that the treated waste gas is discharged from the gas outlet pipeline only.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic view of the overall structure of the bag-type dust collector of the present invention;
FIG. 2 is a schematic structural view of the ash removal filter bag assembly and the nozzle assembly;
FIG. 3 is a schematic structural view of a dust removal filter bag assembly;
FIG. 4 is a schematic view of the internal structure of the dust removing filter bag assembly;
FIG. 5 is a schematic view of a showerhead assembly and a shield;
FIG. 6 is a schematic structural view of a pulse jet head;
FIG. 7 is a schematic structural view of the connection position of the partition plate and the air purifying chamber;
fig. 8 is a schematic structural view of the air baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A high-pressure pulse type bag-type dust collector with high tightness is disclosed, as shown in figures 1 and 2, and comprises an air purifying chamber 1, wherein the bottom of the air purifying chamber 1 is connected with an ash falling chamber 2 with the cylinder diameter gradually reduced from top to bottom, the bottom of the ash falling chamber 2 is connected with an ash accumulating chamber 3, and the bottom of the ash accumulating chamber 3 is provided with a movable door;
the dust removing filter bag assembly and the nozzle assembly are installed in the air purifying chamber 1, wherein the nozzle assembly is arranged above the dust removing filter bag assembly, the air purifying chamber 1 is connected with an air outlet pipeline 12, the air outlet pipeline 12 is communicated with the inside of the air purifying chamber 1, the interface of the air outlet pipeline 12 and the air purifying chamber 1 is arranged above the dust removing filter bag assembly, the edge of the dust removing filter bag assembly is fixedly connected with the inner wall of the air purifying chamber 1 in a sealing manner, as shown in fig. 3 and 4, the dust removing filter bag assembly comprises an upper clamping plate 41 and a lower clamping plate 42, a plurality of filter bag fixing holes 47 are distributed on the lower clamping plate 42 in a rectangular array manner, the side wall of each filter bag fixing hole 47 is fixedly connected with one opening end of each filter bag 46, an interlayer gasket 48 with a certain thickness is fixedly arranged on one surface of the lower clamping plate 42 close to the opening end of each filter bag 46, the interlayer gaskets 48, the interlayer gasket 48 is made of rubber materials, the lower clamping plate 42 is also provided with a first strip-shaped hole 49, the first strip-shaped hole 49 separates two adjacent filter bag fixing holes 47, the upper clamping plate 41 is provided with vent holes 45, the vent holes 45 correspond to the filter bag fixing holes 47 one by one and are concentrically arranged with the filter bag fixing holes 47, the upper clamping plate is fixedly connected with the lower clamping plate 42 through bolts, a vent interlayer 43 is formed between the upper clamping plate 41 and the lower clamping plate 42 due to the fact that the interlayer gasket has a certain thickness, and the vent interlayer 43 is connected with the air transmission fan through an air transmission pipeline 44;
as shown in fig. 5, the nozzle assembly includes a pulse air pipe 53, the pulse air pipe 53 is a pipe with an opening at one end, the opening end of the pulse air pipe 53 is connected with an air injection device 51, the other end of the pulse air pipe 53 is connected with a stepping motor 52, the stepping motor 52 is slidably disposed on a vertical rod (not shown in the figure), so that the stepping motor 52 can drive the pulse air pipe 53 to rotate while sliding up and down, the air injection device 51 is used for inputting high-pressure air into the pulse air delivery pipe 53, bearings 54 are further sleeved on two sides of the pulse air delivery pipe 53, the bearings 54 are rotatably connected with the pulse air delivery pipe 53, the outer wall of each bearing 54 is connected with one end of a dowel bar 55, the other end of each dowel bar 55 is connected with a telescopic cylinder, the pulse gas transmission pipe 53 is controlled to move up and down through the telescopic cylinder, a row of pulse gas transmission holes 91 are formed in the pulse gas transmission pipe 53, and each pulse gas transmission hole 91 corresponds to one pulse spray head 6;
the upper surface of the air purification chamber 1 is provided with a protection piece 7, the protection piece 7 is of a rectangular tube structure, one end of the protection piece 7 is connected with an air delivery fan through a pipeline 72, the side wall of the protection piece 7 is provided with a butt joint 71, one surface of the protection piece 7, which is provided with the butt joint, is fixedly connected with the upper surface of the air purification chamber 1, the upper surface of the air purification chamber 1 is provided with a round hole corresponding to the butt joint 71, so that the internal cavity of the protection piece 7 is communicated with the air purification chamber 1, and each butt joint 71 corresponds to one pulse spray head;
in order to ensure that the air cylinder drives the pulse air delivery pipe 53 to move up and down, the air purification chamber 1 can maintain a sealed environment, and the treated waste gas is discharged from the air outlet pipeline 12 only, as shown in fig. 7, the bearing 54 is sleeved with the partition plate 16, the side wall of the air purification chamber 1 is provided with the stroke port 14, the stroke port 14 penetrates through the side wall of the air purification chamber 1, the length of the stroke port 14 determines the up-and-down movement distance of the pulse air delivery pipe 53, the upper end and the lower end of the stroke port 14 are provided with the first slideway 13 and the second slideway 15 respectively, the two ends of the partition plate 16 are inserted into the first slideway 13 and the second slideway 15 respectively, the partition plate 16 and the first slideway 13 are connected with the second slideway 15 in a sliding and sealing manner, and the two side edges of the partition plate 16 are connected with;
as shown in fig. 6, the pulse nozzle 6 includes a pipe patch 63, a main fixing block 62, an air supply fixing block 64 and an air supply straight pipe 66, the pipe patch 63 is provided with a first hole 92 penetrating through itself, the pipe patch 63 and the pulse air delivery hole 91 are connected in a positioning manner by a clamping structure, so that the situation that the pipe patch 63 does not correspond to the pulse air delivery hole 91 in the installation process is avoided, the pipe patch 63 is made of a rubber material, and the pipe patch 63 can be tightly attached to the pulse air delivery pipe 53 without deformation by applying a certain pressure;
the main fixing block 62 is fixedly connected with the pulse gas pipe through the hoop 61, a groove is formed in the main fixing block 62, a second pore 93 penetrating through the main fixing block 62 is formed in the bottom of the groove, the pipeline attachment block 63 is arranged in the groove of the main fixing block 62, a first pore 92 in the pipeline attachment block 63 is communicated with the second pore 93 at the bottom of the groove in the main fixing block 62, a pore which is unchanged after the pore diameter is gradually reduced to a certain value from top to bottom is formed, wherein the air replenishing fixing block 64 is fixedly connected with the main fixing block 62 through a bolt on the side opposite to the pipeline attachment block 63, a third pore 94 penetrating through the main fixing block 64 and gradually increasing the pore diameter from top to bottom is formed in the air replenishing fixing block 64, the smaller end of the pore diameter of the third pore 94 in the air replenishing fixing block 64 is communicated with the smaller end of the pore diameter of the second pore 93, the air replenishing fixing block 64 is fixedly connected with, the air supply straight pipe 66 is communicated with the third pore 94, a buffer layer 67 is fixedly arranged on the surface of the air supply fixed block 64 opposite to the main fixed block 62, and the buffer layer 67 is made of rubber materials, so that the pulse jet 6 is prevented from being deformed due to collision with other devices;
an air supplement hole is formed in the air supplement fixing block 64, one end of the air supplement hole is communicated with the side wall of the third hole channel 94, the other end of the air supplement hole is connected with an air supplement pipeline 68, and a valve 65 is arranged on the air supplement pipeline 68;
in the invention, the pulse spray head 6 forms a venturi tube through the first pore channel 92, the second pore channel 93 and the third pore channel 94, when the pulse gas pipe 53 is inflated through the gas injection device 51, air can be supplemented into the pulse spray head through the gas supplementing pipeline 68 due to the venturi effect, so that the gas output of the pulse spray head is increased, and the pulse ash removal effect is improved, while in actual operation, the gas output of each pulse spray head 6 can be similar by adjusting the valve 65 and controlling the gas input, the uniformity of the ash removal effect is improved, and the situations that the ash removal effect of the filter bag corresponding to the pulse spray head 6 with low gas pressure is poor, and the filter bag corresponding to the pulse spray head 6 with high gas pressure is damaged due to too high pressure are avoided;
the side wall of the ash falling chamber 2 is communicated with a waste gas inlet 11, the waste gas inlet 11 and the gas outlet pipeline 12 are arranged on the same side of the bag-type dust collector, an air baffle is arranged in the ash falling chamber 2, one end of the air baffle close to the waste gas inlet 11 and two adjacent sides of the end are fixedly connected with the inner wall of the ash falling chamber 2 in a sealing manner, a certain space is reserved between one end of the air baffle far away from the waste gas inlet 11 and the inner wall of the ash falling chamber 2, and the air baffle is arranged above the waste gas inlet 11, as shown in fig. 8, the air baffle comprises a plate body 81, the plate body 81 is provided with a plurality of second strip-shaped holes 82 which are arranged in parallel, the second strip-shaped holes 82 are vertical to the direction that waste gas enters the ash falling chamber 2, one surface of the plate body 81 close to the waste gas inlet 11 is provided with a plurality of turbulence columns 83, and the length;
when waste gas is introduced into the dust falling chamber 2 through the waste gas inlet 11, the waste gas is disturbed in direction and decelerated through the turbulence column 83, part of large-particle dust is precipitated and enters the dust collecting chamber 3, and the decelerated airflow is rapidly reduced along with the flow velocity and can more uniformly enter the air purifying chamber 1 from the second strip-shaped holes 82, so that the uniformity of the dust collecting velocity of the filter bags at each position of the air purifying chamber 1 is improved, the condition that the dust cleaning period is greatly shortened is avoided, and the dust cleaning efficiency is improved;
one side of the ash falling chamber 2, which is provided with the waste gas inlet 11, is provided with a row of air injection pipelines, the air outlets of the air injection pipelines are arranged above the opposite side of the plate body 81 and the turbulent flow column 83, and the air injection pipelines intermittently inject air to blow ash on the surface of the plate body 81 down to the ash falling chamber 3;
the working method of the high-pressure pulse type bag-type dust collector comprises the following steps:
when the filter bag 46 needs to be cleaned:
the stepping motor 52 rotates the pulse gas pipe 53 to enable the gas outlet end of the gas supply straight pipe 66 in the pulse spray head 6 to be vertically downward, and then the pulse gas pipe 53 is driven by the air cylinder to move downward to enable the gas supply straight pipe 66 to extend into the filter bag 46;
the gas transmission fan connected with the pipeline 72 is started to prevent dust from entering the cavity of the protection part 7 in the ash cleaning process, the gas transmission fan connected with the gas transmission pipeline 44 is started to introduce high-pressure gas into the ventilation interlayer 43, so that the gas pressure in the ventilation interlayer 43 is higher than that of the space where the filter bag 46 is located, and the ventilation interlayer 43 introduces the high-pressure gas into the space where the filter bag 46 is located through the first strip-shaped hole 49;
starting the air injection device 51 to instantly inject high-pressure air into the filter bag 46, so that the filter bag 46 is violently vibrated, and dust on the surface of the filter bag 46 is separated;
in the process, because the first strip-shaped holes 49 jet air at high speed, the dust oscillated to be separated from the filter bag 46 moves downwards under the wind pressure from top to bottom and is not or rarely adhered to the surface of the adjacent filter bag, so that the one-time dust cleaning efficiency of the filter bag is improved;
when the filter bag 46 completes dust removal:
the air cylinder drives the pulse air delivery pipe 53 to move upwards to enable the air delivery straight pipe 66 to be separated from the filter bag 46, the stepping motor 52 rotates the pulse air delivery pipe 53 to enable the air outlet end of the air delivery straight pipe 66 in the pulse spray head 6 to vertically move upwards, the air cylinder continues to drive the pulse air delivery pipe 53 to move upwards to enable the pulse spray head 6 to enter a cavity of the protection part 7, and dust in filtered waste gas is prevented from entering the pulse spray head 6 and the pulse air delivery pipe 53 in the filter bag filtering process;
the valve on gas line 44 is closed to prevent exhaust gas from exiting through gas line 44.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. A high-pressure pulse type bag-type dust collector with high tightness is characterized by comprising an air purifying chamber (1), wherein the bottom of the air purifying chamber (1) is connected with an ash falling chamber (2) with the cylinder diameter gradually reduced from top to bottom, the bottom of the ash falling chamber (2) is connected with an ash accumulating chamber (3), and the bottom of the ash accumulating chamber (3) is provided with a movable door;
the dust removing filter bag component and the spray head component are arranged in the air purifying chamber (1), the spray head component is arranged above the dust removing filter bag component, an air outlet pipeline (12) is connected to the air purifying chamber (1), the air outlet pipeline (12) is communicated with the interior of the air purifying chamber (1), the interface of the air outlet pipeline (12) and the air purifying chamber (1) is arranged above the dust removing filter bag component, and the edge of the dust removing filter bag component is fixedly connected with the inner wall of the air purifying chamber (1) in a sealing manner;
the dedusting filter bag assembly comprises an upper clamping plate (41) and a lower clamping plate (42), a plurality of filter bag fixing holes (47) are distributed on the lower clamping plate (42) in a rectangular array manner, the side walls of the filter bag fixing holes (47) are fixedly connected with one end of an opening of a filter bag (46), an interlayer gasket (48) is fixedly arranged on one surface of the lower clamping plate (42) close to the opening end of the filter bag (46), the interlayer gasket (48) corresponds to the filter bag fixing holes (47) one by one and is concentrically arranged with the filter bag fixing holes, a first strip-shaped hole (49) is further formed on the lower clamping plate (42), the first strip-shaped hole (49) separates two adjacent filter bag fixing holes (47), vent holes (45) are formed on the upper clamping plate (41), the vent holes (45) correspond to the filter bag fixing holes (47) one by one and are concentrically arranged with the filter bag fixing holes, the upper clamping plate is fixedly connected with the lower clamping plate (42) through bolts, and a vent interlayer (43, the ventilation interlayer (43) is connected with a gas transmission fan through a gas transmission pipeline (44);
the spray head component comprises a pulse air delivery pipe (53), the pulse air delivery pipe (53) is a pipeline with one open end, one open end of the pulse air delivery pipe (53) is connected with an air injection device (51), the other end of the pulse air delivery pipe (53) is connected with a stepping motor (52), the stepping motor (52) is arranged on a vertical rod in a sliding way, the air injection device (51) is used for inputting high-pressure air into the pulse air delivery pipe (53), two sides of the pulse air delivery pipe (53) are sleeved with bearings (54), the bearings (54) are rotatably connected with the pulse air delivery pipe (53), the outer wall of each bearing (54) is connected with one end of a dowel bar (55), the other end of each dowel bar (55) is connected with a telescopic cylinder, the pulse air delivery pipe (53) is controlled to move up and down through the telescopic cylinder, a row of pulse air delivery holes (91) are formed in the pulse air delivery pipe (53), and each pulse air delivery hole (91) corresponds to one pulse spray head (6).
2. The high-tightness high-pressure pulse type bag-type dust collector as claimed in claim 1, wherein the upper surface of the air-purifying chamber (1) is provided with a protection member (7), the protection member (7) is of a rectangular tube structure, one end of the protection member (7) is connected with an air delivery fan through a pipeline (72), the side wall of the protection member (7) is provided with a butt joint (71), one surface of the protection member (7) provided with the butt joint is fixedly connected with the upper surface of the air-purifying chamber (1), the upper surface of the air-purifying chamber (1) is provided with a round hole corresponding to the butt joint (71), so that an internal cavity of the protection member (7) is communicated with the air-purifying chamber (1), and each butt joint (71) corresponds to one pulse nozzle (6).
3. The high-tightness high-pressure pulse type bag-type dust collector according to claim 1, wherein a separation plate (16) is sleeved on the bearing (54), a stroke opening (14) is formed in the side wall of the air purifying chamber (1), the stroke opening (14) penetrates through the side wall of the air purifying chamber (1), a first slide way (13) and a second slide way (15) are respectively formed in the upper end and the lower end of the stroke opening (14), the first slide way (13) and the second slide way (15) are respectively inserted into the two ends of the separation plate (16), the first slide way (13) and the second slide way (15) are connected in a sliding sealing mode, and the two side edges of the separation plate (16) are connected with the two side walls of the stroke opening (14) in a sliding sealing mode.
4. The high-tightness high-pressure pulse type bag-type dust collector as claimed in claim 1, wherein the pulse nozzle (6) comprises a pipeline attachment block (63), a main fixing block (62), an air supply fixing block (64) and an air supply straight pipe (66), the pipeline attachment block (63) is provided with a first pore passage (92) penetrating through the pipeline attachment block, and the pipeline attachment block (63) is connected with the pulse air delivery hole (91) in a positioning manner through a clamping structure;
the main fixing block (62) is fixedly connected with the pulse gas pipe (53) through a hoop (61), a groove is formed in the main fixing block (62), a second pore channel (93) penetrating through the main fixing block (62) is formed in the bottom of the groove, the pipeline sticking block (63) is arranged in the groove of the main fixing block (62), a first pore channel (92) on the pipeline sticking block (63) is communicated with a second pore channel (93) at the bottom of the groove on the main fixing block (62), a pore channel with the pore diameter gradually reduced from top to bottom and unchanged after a certain value is formed, wherein the air supplementing fixing block (64) is fixedly connected with one side, back to back, of the main fixing block (62) and the pipeline sticking block (63) through a bolt, a third pore channel (94) which penetrates through the air supplementing fixing block (64) and gradually increases from top to bottom is formed in the air supplementing fixing block (64), the smaller pore diameter end of the third pore channel (94) is communicated with the smaller pore diameter end of the second pore, one side of the air supply fixing block (64), which is opposite to the main fixing block (62), is fixedly connected with an air supply straight pipe (66) through a bolt, the air supply straight pipe (66) is communicated with a third pore passage (94), an air supply hole is formed in the air supply fixing block (64), one end of the air supply hole is communicated with the side wall of the third pore passage (94), the other end of the air supply hole is connected with an air supply pipeline (68), and a valve (65) is arranged on the air supply pipeline (68).
5. The high-pressure pulse bag-type dust collector with high tightness according to claim 1, a waste gas inlet (11) is communicated on the side wall of the ash falling chamber (2), the waste gas inlet (11) and the gas outlet pipeline (12) are arranged on the same side of the bag-type dust collector, a gas baffle plate is arranged in the ash falling chamber (2), one end of the gas baffle plate close to the waste gas inlet (11) and two adjacent side edges of the end are fixedly connected with the inner wall of the ash falling chamber (2) in a sealing way, a space is reserved between one end of the gas baffle plate far away from the waste gas inlet (11) and the inner wall of the ash falling chamber (2), and the gas baffle plate is arranged above the waste gas inlet (11), the gas baffle comprises a plate body (81), a plurality of second strip-shaped holes (82) which are arranged in parallel are formed in the plate body (81), the second strip-shaped holes (82) are perpendicular to the direction of waste gas entering the ash falling chamber (2), and a plurality of turbulence columns (83) are arranged on one surface, close to the waste gas inlet (11), of the plate body (81).
6. The high-tightness high-pressure pulse type bag-type dust collector as claimed in claim 5, wherein a row of air injection pipelines are installed on one side of the dust chamber (2) where the waste gas inlet (11) is installed, air outlets of the air injection pipelines are arranged above the surface of the plate body (81) opposite to the turbulent flow column (83), and the air injection pipelines intermittently inject air to blow off dust on the surface of the plate body (81) to the dust chamber (3).
7. The high-tightness high-pressure pulse type bag-type dust collector as claimed in claim 4 is characterized in that the working method of the high-pressure pulse type bag-type dust collector is as follows:
when the filter bag (46) needs to be cleaned:
the stepping motor (52) rotates the pulse gas pipe (53) to enable the gas outlet end of the gas supply straight pipe (66) in the pulse spray head (6) to be vertically downward, and then the pulse gas pipe (53) is driven to move downward through the cylinder to enable the gas supply straight pipe (66) to extend into the filter bag (46);
firstly, a gas transmission fan connected with a pipeline (72) is started, then the gas transmission fan connected with a gas transmission pipeline (44) is started, high-pressure gas is introduced into a ventilation interlayer (43), the air pressure in the ventilation interlayer (43) is higher than that of the space where the filter bag (46) is located, and the ventilation interlayer (43) introduces the high-pressure gas into the space where the filter bag (46) is located through a first strip-shaped hole (49);
starting the air injection device (51) to instantly introduce high-pressure air into the filter bag (46) to ensure that the filter bag (46) is violently vibrated, and dust on the surface of the filter bag (46) is separated;
when the filter bag (46) finishes dust removal:
the air cylinder drives the pulse air delivery pipe (53) to move upwards to enable the air delivery straight pipe (66) to be separated from the filter bag (46), the stepping motor (52) rotates the pulse air delivery pipe (53) to enable the air outlet end of the air delivery straight pipe (66) in the pulse spray head (6) to be vertical upwards, the air cylinder continues to drive the pulse air delivery pipe (53) to move upwards to enable the pulse spray head (6) to enter the cavity of the protection piece (7), then the valve on the air delivery pipeline (44) is closed, and waste gas is prevented from being discharged through the air delivery pipeline (44).
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| CN111482012B (en) * | 2020-04-17 | 2021-11-19 | 龙游县汪洋紧固件有限公司 | Smoke treatment system for galvanizing bath and treatment method thereof |
| CN111841222A (en) * | 2020-07-23 | 2020-10-30 | 广东长亨石业有限公司 | Dust removal treatment facility is smashed to ore |
| CN115182772A (en) * | 2022-05-30 | 2022-10-14 | 青岛东诚大平机械有限公司 | Tunnel dust remover |
| CN117339317B (en) * | 2023-11-14 | 2024-09-27 | 无锡恒日精自动化设备有限公司 | Aluminum oxide collecting bag dust collector for lithium battery and application method of aluminum oxide collecting bag dust collector |
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