CN113617173A - Water spraying water film type wet dust removal system - Google Patents

Abstract

The invention provides a water-spraying water film type wet dust removal system, which comprises: box, dust filtering area, dust collecting region and gaseous defogging district, dust filtering area and dust collecting region set up in the box, the top in dust filtering area is equipped with the air intake, dust filtering area includes spray set and filter disc device, spray set sets up the top of filter disc device, gaseous defogging district includes the blast pipe, the air inlet setting of blast pipe is in the below of filter disc device, the dust collecting region is located the below in dust filtering area, the dust collecting region includes the water tank. The water-spraying water film type wet dust removal system provided by the invention has effective dust removal effects on metal and non-metal dust, or hydrophilic and non-hydrophilic dust, and large and small particles, and is convenient to operate, water-saving and good in filtering effect.

Description

Water spraying water film type wet dust removal system

Technical Field

The invention belongs to the technical field of dust removal, and particularly relates to a water-spraying water film type wet dust removal system.

Background

The dust removal system has various types, and due to the large amount of dust, the dust removal system is easy to accumulate dust, the existing dust removal system has two types, namely a mesh type dust removal system and a non-mesh type dust removal system, the non-mesh type dust removal system has poor filtering effect, and although the filtering effect is good, the water resource is consumed, and the dust sediment in the water tank is difficult to clean; and the dust pelletizing system of mesh type easily blocks up, and when inflammable, explosive dust thickness reached 1mm, dust pelletizing system just did not conform to the trade requirement, caused the burning explosion easily, so the clearance requirement to the mesh department is higher, and some needs shut down the clearance, and some needs manual work clearance is wasted time and energy. Therefore, it is necessary to develop a water-spraying water-film type wet dust removal system which can automatically clean and save energy.

Disclosure of Invention

The invention aims to provide a water-spraying water film type wet dust removal system to solve the problems.

In order to solve the above technical problems, the present invention provides a water-spraying water-film wet dust removal system, comprising: box, dust filtering area, dust collecting region and gaseous defogging district, dust filtering area and dust collecting region set up in the box, the top in dust filtering area is equipped with the air intake, dust filtering area includes spray set and filter disc device, spray set sets up the top of filter disc device, gaseous defogging district includes the blast pipe, the air inlet setting of blast pipe is in the below of filter disc device, the dust collecting region is located the below in dust filtering area, the dust collecting region includes the water tank.

As a preferable scheme of the water spraying film type wet dedusting system, the spraying device comprises a plurality of transverse spraying pipes, a water inlet pipe and a water pump, one end of each transverse spraying pipe is a closed end, the other end of each transverse spraying pipe is connected with the water outlet end of the corresponding water inlet pipe, the water inlet end of each water inlet pipe is communicated with the water outlet of the corresponding water pump, the water inlet of each water pump is communicated with the corresponding water tank through a pipeline, the corresponding water pump is movably connected with the corresponding box body, the transverse spraying pipes are arranged above the corresponding filter disc devices, a plurality of water spraying ports are formed in the pipe walls of the transverse spraying pipes, and when the corresponding water pump is started, water in the corresponding water tank enters the transverse spraying pipes through the corresponding water inlet pipes and is sprayed out through the corresponding water spraying ports.

As a preferable scheme of the water-spraying water-film-type wet dedusting system, the filter disc device includes a first motor, a first rotating shaft and a plurality of filter screen discs, the first rotating shaft is connected to a rotating shaft of the first motor, the first rotating shaft penetrates through centers of the plurality of filter screen discs, the plurality of filter screen discs are arranged in parallel, the spray horizontal pipe is arranged above each filter screen disc in parallel, the filter screen discs are provided with a plurality of filter screen holes, and when the first motor is started, the first rotating shaft drives the plurality of filter screen discs to rotate.

As a preferable scheme of the water-spraying water-film-type wet dust removal system, the filter disc device further includes a second motor, a second rotating shaft, and a plurality of filter disc cleaning devices, the second rotating shaft is connected to the rotating shaft of the second motor, the second rotating shaft passes through centers of the plurality of filter disc cleaning devices, the plurality of filter disc cleaning devices are arranged in parallel, one filter disc cleaning device is correspondingly disposed above one filter disc, when the second motor is started, the second rotating shaft drives the plurality of filter disc cleaning devices to rotate, and bottoms of the filter disc cleaning devices contact upper surfaces of the filter discs.

As a preferable scheme of the water-spraying water-film type wet dust removal system of the invention, the filter screen disc cleaning device comprises a plurality of scraping plates, a plurality of brushes, a plurality of connecting rods and a plurality of rotating shaft sleeves, the plurality of rotating shaft sleeves are sleeved on the second rotating shaft, the rotating shaft sleeve can move up and down on the second rotating shaft and is fixed, a plurality of connecting rods are fixed on each rotating shaft sleeve, the connecting rods are arranged in a radial shape by taking the rotating shaft sleeve as a center, each connecting rod is provided with a scraper and a brush, the brush is parallel to and attached to the scraper, the lower edge of the brush is lower than that of the scraper, the length of the connecting rod is greater than the radius of the filter screen disc, work as the filter screen dish with when filter screen dish cleaning device rotated, scraper blade and brush on the connecting rod with the laminating of filter screen dish, the area of motion of scraper blade and brush covers whole filter screen dish.

As a preferable scheme of the water-spraying water film type wet dust removal system, the dust collection region comprises a first funnel-shaped channel, a second funnel-shaped channel, a first filter bag and a second filter bag, the first funnel-shaped channel is arranged below the filter screen disc, the first filter bag is sleeved at the bottom of the first funnel-shaped channel, the second funnel-shaped channel is arranged below the filter screen disc cleaning device, the second filter bag is sleeved at the bottom of the second funnel-shaped channel, and the water tank is located below the first filter bag and the second filter bag.

As a preferred scheme of the water-spraying water film type wet dust removal system, the dust collecting area also comprises a cylinder, a push rod, a longitudinal plate, a transverse plate and a fixed block, the cylinder, the push rod, the transverse plate and the longitudinal plate are arranged on one side of the first filter bag, the fixing block is arranged on the other side of the first filter bag, the cylinder is connected with one end of the push rod, the other end of the push rod is connected with the longitudinal plate, the longitudinal plate is vertical to the transverse plate, the transverse plate is fixed at the top end of the longitudinal plate, the longitudinal plate is parallel to the fixing block, the first filter bag is arranged between the longitudinal plate and the fixing block, the transverse plate is higher than the fixing block, when the cylinder starts, the push rod drives the vertical plate to the fixed block direction removes, until vertical plate and the laminating of first filter bag the fixed block, the diaphragm lid in the top of fixed block.

As a preferable scheme of the water-spraying water film type wet dust removal system, the gas demisting zone further comprises baffle plates and a fan, an air inlet of the exhaust pipe is arranged on the side wall of the box body close to the first funnel-shaped channel, the position of the air inlet is lower than that of the filter screen disc and higher than that of the first funnel-shaped channel, an air outlet of the exhaust pipe is communicated with the fan, a plurality of baffling zones are arranged in the exhaust pipe, the baffling zones are arranged from top to bottom, each baffling zone is provided with a plurality of parallel baffle plates, the baffle plates are perpendicular to a horizontal plane, and the baffle plates of two adjacent baffling zones are perpendicular to each other.

As a preferable scheme of the water-spraying water film type wet dust removal system, the baffle plate is in a wave shape or a prism shape.

As a preferable scheme of the water-spraying water-film-type wet dust removal system, the dust filtering area is further provided with a plurality of baffle plates, the baffle plates are arranged at gaps between the filter screen discs and the box body, and the aperture of the filter screen holes on the filter screen discs is sequentially reduced from top to bottom.

Compared with the prior art, the water spraying water film type wet dust removal system provided by the invention has the following advantages:

1: the spraying device is arranged, and the flue gas mixed with dust entering from the air inlet is quickly sprayed by water to be purified and dusted in the first step, so that the dust and the water are combined into large particles and fall on the filter screen disc;

2: a plurality of filter screen discs and filter screen holes with reduced apertures layer by layer are arranged, so that a water film is formed in the filter screen holes to filter dust;

3: the filter screen disc cleaning devices are arranged, and the filter screen discs and the dust and water mixture on the filter screen holes are scraped into the second filter bag through the scrapers and the brushes, so that the automatic cleaning capability is improved;

4: the two filter bags are arranged to filter the block-shaped dust, so that the dust content of water in the water tank is effectively reduced, and the water is favorably recycled;

5: the air cylinder is arranged to control the vertical plate and the transverse plate to move, so that the first filter bag can be extruded for multiple times, dust on the inner wall of the filter bag is easy to fall off, the reduction of water in the water tank is avoided, and the dust capacity of the filter bag is increased;

6: the baffle plate is arranged, so that the water content of the air with high water content in the exhaust pipe is reduced;

7: the baffle is arranged at the gap between the filter screen disc and the box body, so that the dust-containing air is prevented from being discharged without being filtered;

8: the dust cleaning device has the advantages that the dust cleaning capacity is improved, the dust cleaning device has good performance in filtering explosive and flammable dust such as aluminum powder, the dust is increased in probability of liquid package due to the fact that the dust is filtered to generate spiral force to be dispersed, air cleanliness is high, explosion and combustion risks are completely avoided, and the dust cleaning device has the effects of avoiding potential safety production hazards and guaranteeing life safety of workers.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein the content of the first and second substances,

FIG. 1 is a schematic side view of the water-spraying water-film wet dust-removing system of the present invention;

FIG. 2 is a schematic view of the water-spraying water-film wet dust-removing system according to the present invention;

FIG. 3 is a schematic perspective view of the water-spraying water-film wet dust removal system of the present invention;

FIG. 4 is a schematic perspective view of another embodiment of the wet dust removal system with water-spraying film;

FIG. 5 is a schematic structural diagram of a dust filtering area of the water-spraying water-film wet dust removal system of the present invention;

FIG. 6 is a schematic structural diagram of a filter disc device of the water-spraying water-film wet dust removal system of the present invention;

FIG. 7 is a schematic structural diagram of a filter screen disc cleaning device of the water-spraying water film type wet dedusting system of the present invention;

FIG. 8 is a schematic view of the baffling zone of the water-in-water wet dedusting system of the present invention in one embodiment;

fig. 9 is a schematic structural diagram of a baffling zone of the water-spraying water-film type wet dust removal system in another embodiment of the invention.

Wherein: 1 is a box body, 2 is a dust filtering area, 211 is a spray transverse pipe, 212 is a water inlet pipe, 213 is a water pump, 221 is a first motor, 222 is a first rotating shaft, 223 is a filter screen disc, 224 is a filter screen hole, 231 is a second motor, 232 is a second rotating shaft, 233 is a filter screen disc cleaning device, 2331 is a scraper blade, 2332 is a brush, 2333 is a connecting rod, 2334 is a rotating shaft sleeve, 3 is a dust collecting area, 31 is a water tank, 321 is a first funnel-shaped channel, 322 is a first filter bag, 331 is a second funnel-shaped channel, 332 is a second filter bag, 341 is a cylinder, 342 is a push rod, 343 is a vertical plate, 344 is a horizontal plate, 345 is a fixed block, 4 is a gas demisting area, 41 is an exhaust pipe, 411 is an air inlet, 42 is a baffle plate, 43 is a fan, 5 is an air inlet, and 6 is an air outlet.

Detailed Description

The invention provides a water-spraying water film type wet dust removal system, which mainly comprises: the box is of a structure similar to a box, the dust filtering area and the dust collecting area are packaged, meanwhile, the box is provided with openable and closable doors at positions corresponding to the dust filtering area and the dust collecting area, the doors are used for maintaining and cleaning the dust filtering area and the dust collecting area, and the gas demisting area is connected with the box and used for discharging filtered gas.

The present invention will be described in further detail with reference to specific embodiments in order to make the above objects, features and advantages more apparent and understandable.

First, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Next, the present invention is described in detail by using a schematic structural diagram, etc., and for convenience of illustration, the schematic diagram illustrating the structure of the water-spraying film-type wet dust removal system is not partially enlarged according to a general scale when the embodiments of the present invention are described in detail, and the schematic diagram is only an example, which should not limit the scope of the present invention. In addition, the actual fabrication process should include three-dimensional space of length, width and depth.

Referring to fig. 1 to 4, fig. 1 is a schematic side view of a water-spraying water-film wet dust removal system according to the present invention; FIG. 2 is a schematic view of the water-spraying water-film wet dust-removing system according to the present invention;

FIG. 3 is a schematic perspective view of the water-spraying water-film wet dust removal system of the present invention; fig. 4 is a schematic perspective view of another angle of the water-spraying water-film wet dust removal system of the present invention. As shown in fig. 1 to 4, the water-spraying water-film type wet dust removal system includes: the box body 1 is used for installing the dust filtering area 2 and the dust collecting area 3 in a box-type structure, and an installation frame body is provided for each motor, each channel and the like. The dust filtering area 2 and the dust collecting area 3 are respectively arranged at the upper part and the lower part of the box body 1, an air inlet 5 is arranged above the dust filtering area 2, the dust filtering area 2 is used for filtering dust-containing smoke entering from the air inlet 5, the dust filtering area 2 comprises a spraying device (not shown) and a filtering disc device (not shown), the spraying device is arranged above the filtering disc device, the gas demisting area 4 comprises an exhaust pipe 41, an air inlet 411 of the exhaust pipe 41 is arranged below the filtering disc device, the dust collecting area 3 is arranged below the dust filtering area 2, and the dust collecting area 3 comprises a water tank 31. The flue gas enters from the air inlet 5, is dedusted by the dust filtering area 2 and then enters the gas demisting area 4 to be normally discharged, and the flue gas forms negative pressure due to the drawing action of the pipeline between the air inlet 5 and the air outlet 6 and the fan 43, so that the flue gas is further promoted to move for dedusting according to a preset track. The flue gas containing dust enters the dust filtering area 2 from the air inlet 5 to be filtered and descends to the dust collecting area 3 to be collected. For ease of understanding, the dust filtration zone 2, dust collection zone 3 and gas demisting zone 4 described above will now be described in detail:

first, dust filtering area 2

With reference to fig. 2 to fig. 4 and fig. 5, fig. 5 is a schematic structural diagram of a dust filtering area of the water-spraying water-film wet dust removal system according to the present invention. As shown in fig. 2 to 5, the dust filtering section 2 includes a sprinkling device (not shown) for sprinkling water to reduce dust, a filter disc device (not shown) for filtering the dust and water combination, and a baffle plate (not shown) for preventing the smoke from being discharged without being filtered.

1. As shown in fig. 2 to 5, the spraying device includes a plurality of horizontal spraying pipes 211, a water inlet pipe 212 and a water pump 213, the water pump 213 is movably connected to the housing 1, and can be detached or moved, a water inlet of the water pump 213 is located below the water surface of the water tank 31, a water inlet end (not shown) of the water inlet pipe 212 is communicated with a water outlet (not shown) of the water pump 213, a water outlet end (not shown) of the water inlet pipe 212 is connected to the plurality of horizontal spraying pipes 211, the horizontal spraying pipes 211 are disposed above the filter disc device, a plurality of water spraying ports (not shown) are disposed on each side wall or lower wall of the horizontal spraying pipes 211, when the water pump 213 is started, water in the water tank 31 is pumped into the water inlet pipe 212 by the water pump 213 under pressure, and is re-dispersed into the plurality of horizontal spraying pipes 211 disposed in parallel, and is sprayed out toward the filter disc device by the plurality of water spraying ports. The spraying function is that firstly, dust is removed once when meeting water (water curtain); secondly, the dust is sprayed to the filter screen holes 224, so that a film is formed at the filter screen holes 224, and secondary dust removal (water film) is completed.

2. With reference to fig. 2 to fig. 5 and fig. 6, fig. 6 is a schematic structural diagram of a filter disc device of a water-spraying membrane-type wet dust removal system according to the present invention. As shown in fig. 2 to 6, the filter disc device is divided into two parts, one part is used for filtering dust and water combination, and the other part is used for scraping the dust.

The first part comprises a first motor 221, a first rotating shaft 222 and a plurality of filter screen discs 223, the plurality of filter screen discs 223 are arranged in parallel from top to bottom and are all parallel to the horizontal plane, the first rotating shaft 222 sequentially penetrates through the centers of the plurality of filter screen discs 223 from top to bottom, the number of the filter screen discs 223 can be arranged in a plurality according to needs, three filter screen discs 223 shown in the figure are a better embodiment, a spray transverse pipe 211 is arranged above each filter screen disc 223 in parallel, a plurality of filter screen holes 224 are arranged on each filter screen disc 223, the plurality of filter screen holes 224 are uniformly distributed, the first rotating shaft 222 is connected with a rotating shaft (not shown) of the first motor 221, when the first motor 221 is started, the first rotating shaft 222 drives the plurality of filter screen discs 223 to rotate, along with the rotation of the filter screen discs 223, a spray surface of the spray transverse pipe 211 can cover the whole filter screen discs 223, and dust after spraying is combined with water to form different particle matters, falls on the strainer tray 223 and contacts the water film formed in the strainer holes 224 to form a liquid bag state, and the hydrophilicity of the dust is increased in a negative pressure state. For the filtration, since the filter discs 223 have multiple layers from top to bottom, in order to facilitate the filtration, the aperture of the filter mesh holes 224 is set to be in a mode of decreasing from large to small, that is, the filter mesh holes 224 on the uppermost filter disc 223 are the largest, the filter mesh holes 224 on the lowermost filter disc 223 are the smallest, but the filter mesh holes 224 on the same filter disc 223 are the same in size, and the aperture of the smallest filter mesh hole 224 is smaller than the smallest particle size of the cleaned dust. Therefore, the pore size of the filter mesh holes 224 can be designed according to the type of dust cleaned by the purchasing manufacturer. And the porous absorption characteristic of the filter screen holes 224 enables dust to be easily dispersed and divided into large and small particles after entering. Through the spraying of the spraying horizontal pipe 211 and the filtering of the filter screen disc 223, dust is combined and adhered to the upper surface of the filter screen disc 223 at the uppermost layer of the filter screen disc 223, a small amount of dust passes through the filter screen holes 224 and is sprayed by the next spraying horizontal pipe 211 and filtered by the filter screen disc 223, and after multiple times of filtering, the dust cleaning rate is nearly 100%.

The second part serves the first part and is used for cleaning each filter screen disc 223, the second part comprises a second motor 231, a second rotating shaft 232 and a plurality of filter screen disc cleaning devices 233, one filter screen disc cleaning device 233 is correspondingly arranged above one filter screen disc 223, the spray horizontal pipe 211 is higher than the connecting rod 2333 of the filter screen disc cleaning device 233, each filter screen disc cleaning device is arranged in parallel with the filter screen disc 223, the second rotating shaft 232 sequentially penetrates through the centers of the plurality of filter screen disc cleaning devices 233 from top to bottom, the second rotating shaft 232 is connected with a rotating shaft (not shown) of the second motor 231, please refer to fig. 2 to fig. 6 continuously, and with reference to fig. 7, fig. 7 is a schematic structural diagram of the filter screen disc cleaning device of the water-leaching film type wet dust removal system of the present invention. As shown in fig. 2 to 7, the strainer tray cleaning device 233 includes a plurality of scrapers 2331, a plurality of brushes 2332, a plurality of connecting rods 2333, and a plurality of rotating shaft sleeves 2334, the plurality of rotating shaft sleeves 2334 are sleeved on the second rotating shaft 232, a plurality of connecting rods 2333 are fixed on each rotating shaft sleeve 2334, the plurality of connecting rods 2333 are radially arranged with the rotating shaft sleeve 2334 as a center, one scraper 2331 and one brush 2332 are mounted on each connecting rod 2333, the brush 2332 is parallel to and attached to the scrapers 2331, the lower edge of the brush 2332 is lower than the lower edge of the scraper 2331, the length of the connecting rod 2333 is greater than the radius of the strainer tray 223, when the second motor 231 is started, the second rotating shaft 232 drives the plurality of strainer tray cleaning devices 233 to rotate, the bottom of the strainer tray cleaning device 233 contacts the upper surface of the strainer tray 223, at this time, the scraper 2331 and the brush 2332 on the connecting rod 2333 are attached to the strainer tray 2331, the dust particles adhered to the upper surface of the strainer tray 223 are cleaned by the scraper 2332, since the extension length of the brush 2332 is longer than the gap between the scraper 2331 and the sieve tray 223, the brush 2332 not only cleans dust on the surface of the sieve tray 223, but also deeply cleans the sieve holes 224, thereby better avoiding the blockage of the sieve holes 224, and when the brush 2332 and the scraper 2331 are worn, the position of the rotating shaft sleeve 2334 on the second rotating shaft 232 can be adjusted to enable the brush 2331 and the scraper 2331 to keep the original position relation with the sieve tray 223. Under the drive of the first motor 221 and the second motor 231, the filter screen disc 223 and the filter screen disc cleaning device 233 rotate in the same or opposite directions, the rotation requirement and speed only need to meet the requirement that the movement area of the scraper 2331 and the brush 2332 covers the whole filter screen disc 223, when the filter screen disc 223 rotates, the scraper is firstly scraped and then brushed, the vibration separation screen is vibrated, a part of the scraper 2331 and the brush 2332 rotate along the filter screen disc 223 and then rotate to the outside of the filter screen disc 223, and at the moment, the scraped or brushed dust is scraped from the filter screen disc 223 along the movement direction of the scraper 2331. The scraper 2331 and the brush 2332 may be made of urethane.

3. The dust filtering area 2 is also provided with a plurality of baffle plates, the baffle plates are arranged at the gap between the filter screen disc 223 and the box body 1, the installation positions of the baffle plates are lower than the horizontal spraying pipe 211, when dust is sprayed by the horizontal spraying pipe 211, the running direction of the dust does not fall on the filter screen disc 223, due to the existence of the baffle plates, the water-containing dust falls on the baffle plates, and the baffle plates incline towards the filter screen disc 223, so that the water-containing dust is guided to the filter screen disc 223.

Secondly, a dust collecting area 3

Referring to fig. 1 to 4, as shown in fig. 1 to 4, the dust collecting region 3 includes a first funnel-shaped passage 321 for guiding the aqueous dust falling from the filter holes 224 cleaned by the brush 2332, a second funnel-shaped passage 331 for guiding the dust falling from the filter holes 224 cleaned by the scraper 2331, a first filter bag 322 for collecting the aqueous dust falling from the first funnel-shaped passage 321, and a second filter bag 332 for collecting the aqueous dust falling from the second funnel-shaped passage 331, the first funnel-shaped passage 321 being disposed below the filter pan 223, the first filter bag 322 being provided at the bottom of the first funnel-shaped passage 321, the second funnel-shaped passage 331 being provided below the filter pan cleaning device 233, the second filter bag 332 being provided at the bottom of the second funnel-shaped passage 331, and the water tank 31 being disposed below the first filter bag 322 and the second filter bag 332. From the water content, due to the negative pressure effect brought by the fan 43 and the flue gas operation channel, the moisture content of the dust (slurry material) entering the first funnel-shaped channel 321 is higher than that of the dust (block material) entering the second funnel-shaped channel 331, so that the dust in the second filter bag 332 can be directly collected and poured, and the dust in the first filter bag 322 can be further dewatered by the extrusion process. Therefore, an air cylinder 341, a push rod 342, a longitudinal plate 343, a transverse plate 344 and a fixed block 345 are further arranged in the dust collecting area 3, the air cylinder 341, the push rod 342, the transverse plate 344 and the longitudinal plate 343 are arranged on one side of the first filter bag 322, the fixed block 345 is arranged on the other side of the first filter bag 322, the air cylinder 341 is connected with one end of the push rod 342, the other end of the push rod 342 is connected with the longitudinal plate 343, the longitudinal plate 343 is perpendicular to the transverse plate 344, the transverse plate 344 is fixed at the top end of the longitudinal plate 343, the longitudinal plate 343 is parallel to the fixed block 345, the first filter bag 322 is arranged between the longitudinal plate 343 and the fixed block 345, the transverse plate 344 is higher than the fixed block 345, the transverse plate 344 is used for sealing the first filter bag during extrusion, when the air cylinder 341 is started, the push rod 342 drives the longitudinal plate 343 to move towards the fixed block 345 until the longitudinal plate 343 and the first filter bag 322 are attached to the fixed block 345, and at the moment, one side of the transverse plate 344 close to the fixed block 345 is positioned above the fixed block 345, the cylinder 341 pushes the extrusion action to make the dust on the inner wall of the cloth of the filter bag generate displacement, the water discharge amount reaches about 5 times of the natural discharge amount, and the time of natural draining is reduced. By doing so, the moisture in the moisture-containing dust in the first filter bag 32 is squeezed out and falls from the first filter bag 32 into the water tank 31, and the upper opening of the first filter bag 32 is sealed by the cross plate 344, so that the moisture-containing dust is prevented from returning to the first funnel-shaped passage 331. After the squeezing is completed, the dust in the first filter bag 32 is formed into a block, the water falling into the water tank 31 is free of dust because the water is filtered by the filter cloth of the first filter bag 322, and the water in the water tank 31 participates in the water dedusting cycle again. The dust blocks in the first filter bag 32 and the second filter bag 332 only need to be poured and recycled when the bags are full, and the cleaning is convenient.

Second, gas demisting zone 4

Referring to fig. 2 to 4, as shown in fig. 2 to 4, the gas demisting zone 4 is a duct for discharging the gas filtered by the dust filtering zone 2, and since the gas is sprayed several times in the dust filtering zone 2, a certain amount of moisture is present in the gas after dust removal, and in order to remove the moisture, a plurality of baffles 42 are disposed in the exhaust pipe 41, a plurality of baffling zones (not shown) are disposed in the exhaust pipe 41, the plurality of baffling zones are arranged from top to bottom, each baffling zone has a plurality of parallel baffles 42, the baffles 42 are perpendicular to the horizontal plane, and the baffles 42 in two adjacent baffling zones are perpendicular to each other. The structure of the baffle 42 can be varied, please refer to fig. 8 and 9, fig. 8 is a schematic structural diagram of a baffling region of the water-spraying membrane type wet dust removal system in one embodiment of the present invention; fig. 9 is a schematic structural diagram of a baffling zone of the water-spraying water-film type wet dust removal system in another embodiment of the invention. As shown in fig. 8, the baffle plate 42 is prism-shaped, and as shown in fig. 9, the baffle plate 42 is wave-shaped. The design of the baffle plates 42 aims at that the baffle plates 42 are distributed in parallel in multiple layers to realize that when air flows through, the air flow can rotate for more times when meeting the baffle plates 42, so that atomized air is attached to the baffle plates 42, the contact area of the air flow with the baffle plates 42 is more, water (water mist) in the air flow can be easily condensed into water drops when meeting the baffle plates 42, the baffle plates 42 not only have another group of baffle plates 42 which are positioned in the same direction but also are positioned above, the group of baffle plates 42 are still designed in parallel, the aim is that when the air flow from the first group passes through, part of water vapor which is not condensed into water drops by the baffle plates 42 can contact the baffle plates at another angle, the air flow rotates for more times, so that the atomized air is adsorbed on the baffle plates 42, the contact area is still more, the water drops in the air flow can be easily condensed into water drops, and the water content of discharged air is lower, meets the emission requirement. Thus, to achieve the same angle, there are at least two sets of baffles 42. In the embodiment shown in fig. 2-4, there are three sets of such baffles 42. The baffling board 42 except letting steam catch the cold and form water droplet, can also avoid the dust to get into behind the blast pipe 41, discharges from air outlet 6, finds in the experiment that this equipment operation, the dust can not get into blast pipe 41, but when the use is taken steam gas and dust and only is baffling board 42 and blast pipe 41 experiment, baffling board 42 has this effect, because the water droplet on the baffling board 42 can combine with the dust. In the gas demisting area 4, the height of the exhaust pipe 41 is stretched to be higher than the air inlet 5 on the dust filtering area 2, namely the height of the air outlet 6 of the exhaust pipe 41 is higher than that of the air inlet 5. In the embodiment shown in the figure, the air inlet 411 of the exhaust pipe 41 is arranged on the side wall of the box body 1 close to the first funnel-shaped channel 321, the position of the air inlet 411 is lower than the position of the filter screen disc 223 and higher than the position of the first funnel-shaped channel 321, and the arrangement position of the air inlet 411 can be various, such as the upper port side wall of the first funnel-shaped channel 321, and the like, which aims to send the gas filtered by the dust filtering area 2 into the gas demisting area 4 without removing dust, and all the arrangements with this effect are the arrangement considered by the present device. The air outlet 6 of the exhaust pipe 41 is communicated with the fan 43, the flue gas enters from the air inlet 5 until the flue gas goes out from the air outlet 6, and due to the drawing effect of the fan 43, the flue gas has great guidance quality in the whole flowing process.

The test data of the water-spraying water film type wet dust removal system are as follows:

therefore, the water-spraying water film type wet dust removal system has effective dust removal effects on metal and non-metal dust, or hydrophilic and non-hydrophilic dust, as well as large and small particles, and is convenient to operate, water-saving and good in filtering effect.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. Water drenches water film formula wet dedusting system, characterized by includes: box, dust filtering area, dust collecting region and gaseous defogging district, dust filtering area and dust collecting region set up in the box, the top in dust filtering area is equipped with the air intake, dust filtering area includes spray set and filter disc device, spray set sets up the top of filter disc device, gaseous defogging district includes the blast pipe, the air inlet setting of blast pipe is in the below of filter disc device, the dust collecting region is located the below in dust filtering area, the dust collecting region includes the water tank.

2. The water-showering water film type wet dust removal system as claimed in claim 1, wherein: the spraying device comprises a plurality of transverse spraying pipes, a water inlet pipe and a water pump, one end of each transverse spraying pipe is a closed end, the other end of each transverse spraying pipe is connected with the water outlet end of the corresponding water inlet pipe, the water inlet end of each water inlet pipe is communicated with the water outlet of the corresponding water pump, the water inlet of each water pump is communicated with the corresponding water tank through a pipeline, the water pump is movably connected with the box body, the transverse spraying pipes are arranged above the filter disc device, a plurality of water spraying ports are formed in the pipe walls of the transverse spraying pipes,

when the water pump is started, water in the water tank enters the horizontal spraying pipe through the water inlet pipe and is sprayed out from the water spraying port.

3. The water-showering water film type wet dust removal system as claimed in claim 2, wherein: the filter disc device comprises a first motor, a first rotating shaft and a plurality of filter screen discs, the first rotating shaft is connected with a rotating shaft of the first motor, the first rotating shaft penetrates through the centers of the plurality of filter screen discs, the plurality of filter screen discs are arranged in parallel, the transverse spray pipes are arranged above each filter screen disc in parallel, the filter screen discs are provided with a plurality of filter screen holes,

when the first motor is started, the first rotating shaft drives the plurality of filter screen discs to rotate.

4. The water-showering water film type wet dust removal system as claimed in claim 3, wherein: the filter disc device also comprises a second motor, a second rotating shaft and a plurality of filter disc cleaning devices, the second rotating shaft is connected with the rotating shaft of the second motor, the second rotating shaft penetrates through the centers of the plurality of filter disc cleaning devices, the plurality of filter disc cleaning devices are arranged in parallel, one filter disc cleaning device is correspondingly arranged above one filter disc,

when the second motor starts, the second rotating shaft drives the plurality of filter screen disc cleaning devices to rotate, and the bottoms of the filter screen disc cleaning devices are in contact with the upper surfaces of the filter screen discs.

5. The water-showering water film type wet dust removal system as claimed in claim 4, wherein: the filter screen disc cleaning device comprises a plurality of scraping plates, a plurality of brushes, a plurality of connecting rods and a plurality of rotating shaft sleeves, the plurality of rotating shaft sleeves are sleeved on the second rotating shaft, the rotating shaft sleeves can move up and down on the second rotating shaft and are fixed, the plurality of connecting rods are fixed on each rotating shaft sleeve, the plurality of connecting rods are arranged in a radial mode by taking the rotating shaft sleeves as centers, each connecting rod is provided with one scraping plate and one brush, the brushes are parallel to and attached to the scraping plates, the lower edges of the brushes are lower than the lower edges of the scraping plates, the lengths of the connecting rods are larger than the radius of the filter screen disc,

work as the filter screen dish with when filter screen dish cleaning device rotated, scraper blade and brush on the connecting rod with the laminating of filter screen dish, the area of motion of scraper blade and brush covers whole filter screen dish.

6. The water-showering water film type wet dust removal system as claimed in claim 4, wherein: dust collecting region includes first funnel type passageway, second funnel type passageway, first filter bag and second filter bag, first funnel type passageway sets up the below of filter screen dish, the bottom cover of first funnel type passageway is equipped with first filter bag, second funnel type passageway sets up filter screen dish cleaning device's below, the bottom cover of second funnel type passageway is equipped with the second filters the bag, the water tank is located the below of first filter bag and second filter bag.

7. The water-showering water film type wet dust removal system as claimed in claim 6, wherein: the dust collecting area further comprises an air cylinder, a push rod, a longitudinal plate, a transverse plate and a fixing block, the air cylinder, the push rod, the transverse plate and the longitudinal plate are arranged on one side of the first filter bag, the fixing block is arranged on the other side of the first filter bag, the air cylinder is connected with one end of the push rod, the other end of the push rod is connected with the longitudinal plate, the longitudinal plate is perpendicular to the transverse plate, the transverse plate is fixed to the top end of the longitudinal plate, the longitudinal plate is parallel to the fixing block, the first filter bag is arranged between the longitudinal plate and the fixing block, and the transverse plate is higher than the fixing block,

when the cylinder starts, the push rod drives the vertical plate to the fixed block direction removes, until vertical plate and the laminating of first filter bag the fixed block, the diaphragm lid in the top of fixed block.

8. The water-showering water film type wet dust removal system as claimed in claim 7, wherein: gaseous defogging district still includes baffling board and fan, the air inlet setting of blast pipe is being close to on the box lateral wall of first funnel type passageway, the position of air inlet is less than the position of filter screen dish, and is higher than the position of first funnel type passageway, the air outlet of blast pipe with the fan intercommunication, be equipped with a plurality of baffling districts in the blast pipe, a plurality of baffling districts are from last down arranging, and every baffling district has the parallel baffling board of polylith, the baffling board is perpendicular with the horizontal plane to the baffling board mutually perpendicular of two adjacent baffling districts.

9. The water-showering water film type wet dust removal system as claimed in claim 8, wherein: the baffle plate is wave-shaped or prism-shaped.

10. The water-showering water film type wet dust removal system as claimed in claim 3, wherein: the dust filtration district still is equipped with the polylith plate washer, the baffle set up in filter screen dish with clearance department between the box, the filter screen hole diameter on a plurality of filter screen dishes down reduces from last in proper order.

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