CN113713538A - Dust removal device and dust removal method for dust-containing gas - Google Patents
Dust removal device and dust removal method for dust-containing gas Download PDFInfo
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- CN113713538A CN113713538A CN202111133220.8A CN202111133220A CN113713538A CN 113713538 A CN113713538 A CN 113713538A CN 202111133220 A CN202111133220 A CN 202111133220A CN 113713538 A CN113713538 A CN 113713538A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/14—Packed scrubbers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/12—Washers with plural different washing sections
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Abstract
The invention discloses a dust removing device and a dust removing method for dust-containing gas, wherein the device mainly comprises: the tower body is internally provided with a cavity, the lower part of the tower body is provided with an air inlet, and the top of the tower body is provided with an air outlet; at least one adsorption spraying dust removal device which is arranged in the cavity between the air inlet and the air outlet along the height direction of the cavity so as to carry out adsorption spraying dust removal operation on the passing dust-containing gas; and each cleaning device is arranged below each adsorption spraying dust removal device in a one-to-one correspondence manner so as to spray from the direction of the adsorption spraying dust removal device to the direction of the adsorption spraying dust removal device from the lower side of the adsorption spraying dust removal device. The invention realizes the combination of three modes of spray dust removal, cyclone dust removal and condensation dust removal, has simple structure, high dust removal efficiency, good applicability, less water consumption, anti-blockage, self-cleaning function and convenient maintenance, and can be widely applied to steam dust removal operation in the metallurgical industry.
Description
Technical Field
The invention relates to the field of environmental protection equipment, in particular to a dust removal device and a dust removal method for dusty gas, which are suitable for removing dust of high-temperature dusty gas.
Background
At present, a large amount of high-temperature dust-containing steam is often generated in the production process of the metallurgical industry. The treatment of high-temperature dust-containing steam generally adopts processes of spray washing, cyclone washing, water quenching and spray and the like. The spraying process adopts a large amount of spraying water to collect dust in the dust-containing gas, has high water consumption and low efficiency, and is difficult to clean automatically. The cyclone washing process is to rotate the dusty airflow, separate out dust particles spirally, and wash with spraying water, and the method cannot remove tiny dust in the airflow and has low dust removal efficiency. The water quenching spraying is to introduce the dust-containing gas into water, the dust-containing gas is fully contacted with the water to remove dust, and the method can only be applied to small-air-volume dust removal and has small application range.
Disclosure of Invention
In view of this, the present invention provides a dust removing apparatus and a dust removing method for a dust-containing gas, which achieve a good dust removing effect with less consumption while achieving self-cleaning.
The technical scheme of the invention is realized as follows:
a dust removing apparatus for a dust-laden gas, comprising:
the device comprises a tower body, a dust-containing gas inlet, a dust-removing gas outlet and a dust-removing gas outlet, wherein a cavity is formed in the tower body, the lower part of the tower body is provided with the gas inlet through which the dust-containing gas enters the cavity, and the top of the tower body is provided with the gas outlet through which the dust-removed gas is discharged;
the adsorption spraying dust removal device is at least one, and is arranged in the cavity between the air inlet and the air outlet along the height direction of the cavity so as to perform adsorption spraying dust removal operation on the passing dust-containing gas;
and at least one cleaning device is arranged, and each cleaning device is arranged below each adsorption spraying dust removal device in a one-to-one correspondence manner so as to spray from the direction of the adsorption spraying dust removal device below the adsorption spraying dust removal device.
Further, the cleaning device includes:
the first water pump is positioned outside the tower body;
the cleaning water delivery pipe is arranged below the adsorption spraying dust removal device and is connected to the first water pump;
the cleaning water supply device comprises a cleaning spray head, wherein the cleaning spray head is arranged on a cleaning water pipe and is arranged towards an adsorption spraying dust removal device, and when the first water pump works to supply water, the cleaning spray head sprays cleaning water to the adsorption spraying dust removal device.
Further, adsorb and spray dust collector and include:
the first grid plate is fixedly arranged in the cavity;
a plurality of packing balls are laid on the first grid plate to adsorb dust in the passing dust-containing gas;
and the spraying device is arranged above the packing ball to spray water to the packing ball.
Further, the spray device includes:
the second water pump is positioned outside the tower body;
the spraying water conveying pipe is arranged above the packing ball and is connected with the second water pump;
and the spraying nozzles are arranged on the spraying water pipe and are arranged towards the filler balls, and when the second water pump works to supply water, the spraying nozzles spray the dedusting water to the filler balls below.
Further, the dust removing device for dust-containing gas further comprises:
and the stirring device is arranged above the filler balls and is inserted among the filler balls so as to stir the filler balls. The stirring device is at least one, and each stirring device is installed above each adsorption spraying dust removal device one to one, and is inserted between a plurality of filler balls so as to stir the plurality of filler balls.
Further, the dust removing device for dust-containing gas further comprises:
the dehydration layer is a layer, is arranged in the cavity and is positioned between the exhaust port and the adsorption spraying dust removal device.
Further, the dehydration treatment layer includes:
the second grid plate is fixedly arranged in the cavity;
and the dewatering plate is laid on the second grid plate to absorb moisture in the passing gas.
Further, the dust removing device for dust-containing gas further comprises:
the water outlet is formed in the bottom of the side wall of the tower body;
and the drainage plate is fixedly arranged at the bottom of the cavity in the tower body and inclines towards the water outlet, and the water outlet is arranged close to the upper surface of the drainage plate.
Further, the dust removing device for dust-containing gas further comprises:
the dust monitoring device is arranged at the exhaust port to detect the dust content in the gas exhausted from the exhaust port and acquire a dust content parameter;
and the control device is connected with the dust monitoring device, the adsorption spraying dust removal device and the cleaning device so as to receive the dust content parameter from the dust monitoring device, and the spraying water amount of the adsorption spraying dust removal device and the cleaning device is controlled according to the change of the dust content parameter.
A method for removing dust from a dust-containing gas by using the dust removing apparatus for a dust-containing gas as described above, comprising:
starting the adsorption spraying dust removal device to perform adsorption spraying dust removal operation on the dust-containing gas when the dust-containing gas passes through the adsorption spraying dust removal device;
introducing dust-containing gas into the tower body from a gas inlet;
and starting the cleaning device, and spraying the adsorption spraying dust removal device from the lower part of the adsorption spraying dust removal device to clean the dirt accumulated at the lower part of the adsorption spraying dust removal device.
According to the scheme, the dust removal device and the dust removal method for the dust-containing gas realize the combination of three modes of spray dust removal, cyclone dust removal and condensation dust removal, the dust removal efficiency is higher than that of the traditional water bath dust removal, the water consumption is lower, the dust removal efficiency can reach more than 90%, and the water consumption is only 40% of that of the water bath dust remover in the same level. The dust removing device for the dust-containing gas has the advantages of simple structure, high dust removing efficiency, good applicability, small water consumption, blockage prevention, self-cleaning function and convenient maintenance, and can be widely applied to steam dust removing operation in the metallurgical industry.
Drawings
FIG. 1 is a schematic view of the internal structure of a dust-removing apparatus for dust-containing gas according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating the steps of a method for removing dust from a dust-laden gas according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and examples.
As shown in fig. 1, the dust removing apparatus for dust-containing gas according to the embodiment of the present invention mainly includes a tower body 1, an adsorption spray dust removing apparatus 2, and a cleaning apparatus 3. Wherein, the inside cavity that forms of tower body 1, tower body 1 lower part is seted up and is supplied dirty gas to get into the air inlet 11 of cavity, and tower body 1 top is seted up and is supplied gas exhaust 12 after the dust removal. The adsorption spraying dust removal device 2 is at least one and is arranged in the cavity between the air inlet 11 and the air outlet 12 along the height direction of the cavity so as to perform adsorption spraying dust removal operation on the passing dust-containing gas. The number of the cleaning devices 3 is at least one, and each cleaning device 3 is arranged below each adsorption spraying dust removal device 2 in a one-to-one correspondence mode so as to spray from the direction of the adsorption spraying dust removal device 2 below the adsorption spraying dust removal device 2. For example, in the embodiment shown in fig. 1, there are two adsorption spray dust removal devices 2 and two cleaning devices 3, and each adsorption spray dust removal device 2 corresponds to one cleaning device 3.
As shown in fig. 1, in the embodiment of the present invention, the cleaning device 3 mainly includes a first water pump 31, a cleaning water pipe 32, and a cleaning nozzle 33. Wherein the first water pump 31 is located outside the tower 1. The cleaning water pipe 32 is arranged below the adsorption spray dust removal device 2 and connected to the first water pump 31. The cleaning water supply pipe 32 is provided with a plurality of cleaning nozzles 33, the cleaning nozzles 33 are attached to the cleaning water supply pipe 32 and are provided toward the adsorption spray dust collector 2, and when the first water pump 31 is operated to supply water, the cleaning nozzles 33 spray cleaning water toward the adsorption spray dust collector 2.
In the embodiment of the invention, the cleaning device 3 is used for spraying the adsorption spraying dust removal device 2 from the lower part, so that the cleaning operation on the lower part of the adsorption spraying dust removal device 2 is realized, the dead angle of the internal structure of the tower body which is difficult to clean originally can be cleaned at any time according to the requirement, and the dust removal device for the dust-containing gas can still have the best dust removal effect after long-time work. In addition, during the operation of the adsorption spray dust removal device 2, the cleaning device 3 may be simultaneously started as needed to assist the spraying operation of the passing dust-containing gas from the lower part of the adsorption spray dust removal device 2 in cooperation with the operation of the adsorption spray dust removal device 2.
As shown in fig. 1, in the embodiment of the present invention, the adsorption spray dust collector 2 mainly includes a first grid 21, filler balls 22, and a spray device 23. Wherein, the first grid plate 21 is fixedly arranged in the cavity of the tower body 1 and is provided with a grid through which dust-containing gas and water can pass. The number of the filler balls 22 is plural, and the filler balls 22 are laid on the first grid 21 to adsorb dust in the passing dust-containing gas. A spray device 23 is installed above the packing balls 22 to spray water toward the packing balls 22.
In an alternative embodiment, the first grid plate 21 may be a steel grid plate, which has the characteristics of high strength and corrosion resistance and can be used for a long time. In alternative embodiments, the material of the first grid 21 may also be selected from other materials with high strength and corrosion resistance, such as metal, alloy or composite material.
In an alternative embodiment, the filler ball 22 may be made of polypropylene plastic. Preferably, the diameter of the filler balls 22 is 50 mm to 200 mm. Preferably, the packing balls 22 are filled and stacked in layers on the first grid 21. Taking 3000 single-layer filler balls with the diameter of 100 mm as an example, each layer of the filler balls 22 can increase the area of the water adsorption film by nearly 100m2. Therefore, in the preferred embodiment of the present invention, the filler balls 22 are filled and stacked on the first grid plate 21 in multiple layers, so that the adsorption area can be greatly increased, and a better dust removal effect can be achieved.
In the embodiment of the invention, all the filler balls 22 are freely stacked to form a ball layer with a certain height, which ensures that a large enough heat exchange and adsorption area can be generated, a large number of irregular airflow channels can be generated, dust can form a rotational flow in the airflow channels, the time and path of the dust-containing gas passing through the filler balls 22 are longer, dust particles in the dust-containing gas can generate the effects of collision, adhesion, condensation, centrifugal separation and the like among the filler balls 22, and under the comprehensive action of the effects, the dust removal efficiency can reach 90%.
In the embodiment of the invention, the water sprayed to the filler balls 22 by the spraying device 23 forms a flowing water film on the surfaces of the filler balls 22, and heat carried in the dust-containing gas can exchange heat with the flowing water film and is taken away by the water film, so that water vapor in the dust-containing gas can be condensed to form water drops to further adsorb a large amount of dust particles.
As shown in fig. 1, in the embodiment of the present invention, the spraying device 23 includes a second water pump 231, a spraying water pipe 232, and a spraying nozzle 233. Wherein the second water pump 231 is located outside the tower 1. The spray water pipe 232 is arranged above the packing ball 22 and connected to the second water pump 231. The spray nozzles 233 are provided in plurality, the spray nozzles 233 are installed in the spray water supply pipe 232 and are disposed toward the packing balls 22, and when the second water pump 231 operates to supply water, the spray nozzles 233 spray the dust removal water toward the packing balls 22 therebelow.
As shown in fig. 1, the dust removing apparatus for dust-containing gas according to the embodiment of the present invention further includes a stirring device 4. The stirring device 4 is installed above the filler balls 22 and interposed between the plurality of filler balls 22 to stir the plurality of filler balls 22. The number of the stirring devices 4 is at least one, and each stirring device 4 is installed above each adsorption spray dust removal device in a one-to-one manner and is inserted among the plurality of filler balls 22 so as to stir the plurality of filler balls 22.
In an optional embodiment, the stirring device 4 mainly comprises a motor, a speed reducer, a rotating shaft body and a stirring part. Wherein, the motor passes through the speed reducer drive and rotates the axis body, rotates the axis body and inserts the filled ball 22 on first check board 21, stirs the piece and installs in the tip that rotates the axis body and be close to first check board 21, stirs the piece and is close to first check board 21 setting, when rotating the axis body and rotate, drives to stir and rotates on first check board 21, and then stirs filled ball 22 on the first check board 21. The motor and reducer may be replaced by a reduction motor.
When agitating unit 4 starts, agitating unit 4 stirs filled ball 22 for mutual friction collision between filled ball 22 and the filled ball 22, make the dust that attaches to on filled ball 22 drop fast, simultaneously under spray set 23 and/or belt cleaning device 3's work cooperation, the dust that drops can be washed away along with the water film that flows, can effectively prevent filled ball 22 scale deposit from blockking up like this.
In an optional embodiment, an end of a rotation shaft of the stirring device 4 passes through the first grid 21 (the first grid 21 is provided with a hole or an opening for the rotation shaft to pass through), the rotation shaft passes through the end of the first grid 21 and is fixed to the cleaning water pipe 32 of the cleaning device 3, and then when the stirring device 4 is started, the cleaning water pipe 32 and the cleaning nozzle 33 can be driven to rotate under the first grid 21 for spraying and cleaning, so that the cleaning device 3 can clean the first grid 21 and the filler balls 22 on the first grid 21 more thoroughly, and the bottom of the first grid 21 can be effectively prevented from scaling and blocking.
As shown in fig. 1, the dust removing apparatus for dust-containing gas according to the embodiment of the present invention further includes a dehydration treatment layer 5. The dehydration treatment layer 5 is a layer and is arranged in the cavity of the tower body 1 and is positioned between the exhaust port 12 and the adsorption spraying dust removal device 2. I.e. above the adsorption spray dust removal device 2 in the tower body 1.
Wherein the dehydration treatment layer 5 includes a second lattice plate 51 and a dehydration plate 52. The second grid 51 is fixedly mounted in the cavity of the tower 1. A dewatering plate 52 is laid on the second grid 51 to absorb moisture from the passing gas.
The air flow after being dedusted by the adsorption spray dedusting device 2 flows upwards to enter the dehydration treatment layer 5, in the dehydration treatment layer 5, moisture included in the air flow is removed through the dehydration plate 52, the dehydration of the air is realized, and the dehydrated air continuously rises and is discharged out of the tower body 1 from the exhaust port 12.
As shown in fig. 1, the dust removing apparatus for dust-containing gas according to the embodiment of the present invention further includes a drain port 6 and a drain plate 7. Wherein, the water outlet 6 is arranged at the bottom of the side wall of the tower body 1. The drain board 7 is fixedly arranged at the bottom of the cavity in the tower body 1 and inclines towards the water outlet 6, and the water outlet 6 is arranged close to the upper surface of the drain board 7.
In the embodiment of the invention, the inclined drainage plate 7 is arranged at the bottom of the tower body 1, sewage containing dirt falling from the upper adsorption spraying dust removal device 2 flows downwards to the drainage port 6 along the inclined surface of the drainage plate 7, the drainage plate 7 can effectively prevent the dirt in the sewage from silting and precipitating at the bottom of the tower body 1, and the silted and precipitated dirt can be prevented from blocking the drainage port 6 by timely discharging through the drainage port 6.
As shown in fig. 1, the dust removing apparatus for dust-containing gas according to the embodiment of the present invention further includes a dust monitoring device 8 and a control device (not shown in the figure). Wherein, dust monitoring devices 8 are installed in gas vent 12 to detect the dust content in the gas of following gas vent 12 exhaust, obtain dust content parameter. The control device is connected with the dust monitoring device 8, the adsorption spraying dust removal device 2 and the cleaning device 3 to receive dust content parameters from the dust monitoring device 8, and the spraying water amount of the adsorption spraying dust removal device 2 and the cleaning device 3 is controlled according to the change of the dust content parameters.
Further, a control device may be connected to the second water pump 231 in the adsorption spray dust collector 2 and the first water pump 31 in the cleaning device 3 to adjust the amount of spray water of the adsorption spray dust collector 2 and/or the cleaning device 3 by controlling the amount of water supplied by the second water pump 231 and/or the first water pump 31 according to the monitored dust content in the exhaust gas. For example, when the dust content in the exhaust gas is detected to be too high (e.g. higher than a certain set threshold), the second water pump 231 and/or the first water pump 31 are controlled to increase the water supply amount to increase the flow rate of the flowing water film flowing through the packing balls 22, so as to take away more dust particles and reduce the dust content in the exhaust gas.
Furthermore, the control device can also be connected to the stirring device 4 to control the start and stop and the stirring speed of the stirring device 4, and the dust content in the exhaust gas is further reduced by matching with the spraying water amount of the adsorption spraying dust removal device 2 and/or the cleaning device 3.
Based on the dust removing device for the dust-containing gas in each embodiment, the embodiment of the invention also provides a dust removing method for the dust-containing gas, as shown in fig. 2, the dust removing method mainly comprises the following steps:
step 1, starting an adsorption spraying dust removal device to perform adsorption spraying dust removal operation on dust-containing gas when the dust-containing gas passes through the adsorption spraying dust removal device;
and 3, starting the cleaning device, and spraying the adsorption spraying dust removal device from the lower part of the adsorption spraying dust removal device to clean dirt accumulated on the lower part of the adsorption spraying dust removal device.
The step 1 and the step 2 are not distinguished in execution sequence, and may be executed simultaneously, or may be executed after the step 1 is executed, or may be executed after the step 2 is executed. When step 2 is performed first, it is necessary to perform step 1 as soon as possible to prevent step 1 from being performed too late and releasing excessive dust-containing gas. Preferably, step 1 is performed first and then step 2 is performed.
Wherein, step 3 can be executed after a long time of working, and can also be executed in the process of executing step 2. The execution condition of the step 3 can be set according to the actual working condition, and can also be manually determined according to the requirement.
Based on the embodiment of the stirring device 4, the dust removal method for the dust-containing gas of the embodiment of the present invention further includes a step of controlling the operation of the stirring device 4 in step 2 and/or step 3.
Based on the embodiments of the dust monitoring device 8 and the control device, the dust removal method for the dust-containing gas further includes the steps of detecting the dust content in the gas discharged from the gas outlet in step 2, controlling the spraying water amount of the adsorption spraying dust removal device and/or the cleaning device according to the change of the dust content in the gas discharged, and/or controlling the stirring speed of the stirring device 4.
When the dust removing device and the dust removing method for the dust-containing gas provided by the embodiment of the invention are applied to a metallurgical industry factory, the spraying device 23 is started to spray a large amount of spraying water before high-temperature dust-containing steam generated by metallurgy enters.
High temperature dust-containing steam enters the tower body 1 from the air inlet 11 at the lower side.
High-temperature dust-containing steam passes through the first grid plate 21, the upper spraying nozzle 233 sprays water to form a layer of flowing water film on the filler balls 22, a large amount of heat in the dust-containing steam and the flowing water film are subjected to heat exchange and taken away, and steam is condensed to form water drops to adsorb a large amount of dust particles.
A plurality of packing balls 22 are stacked together, a plurality of small irregular and bent air flow channels are formed among the packing balls 22, the passing time and the passing path of high-temperature dust-containing steam are longer when the high-temperature dust-containing steam passes through the packing balls 22, and dust particles in the high-temperature dust-containing steam are subjected to inertial collision, centrifugal separation and liquid film adsorption among the packing balls 22. After passing through a layer of filler balls 22, about 40% of the dust can be removed.
The multiple layers of the filler balls 22 are stacked together, and water flow formed by spraying flows from the upper layer of the filler balls 22 to the lower layer of the filler balls 22, so that the water consumption can be greatly reduced compared with other dust removal modes, and compared with a water bath dust remover with the same air quantity, the water consumption of the water bath dust remover disclosed by the embodiment of the invention is only 40% of that of the water bath dust remover.
High-temperature dust-containing steam enters a spraying dedusting area after passing through the filler balls 9, and in the area, a large amount of water mist is sprayed downwards by the spraying nozzles 233 to form convection with high-temperature dust-containing airflow from bottom to top, so that dust particles and heat in the dust-containing steam are further adsorbed.
In the embodiment shown in fig. 1, the adsorption spray dust removal device 2 has two layers, and after high-temperature dust-containing steam passes through the two layers of adsorption spray dust removal devices 2 in sequence, the dust content can be greatly reduced.
The airflow after twice dust removal carries a large amount of micro water drops, and the airflow passes through the upper dehydration treatment layer 5 upwards to remove a large amount of moisture contained in the airflow and then is discharged from the exhaust port 12.
The stirring device 4 regularly stirs the packing ball 22, and the mutual friction collision between packing ball 22 and the packing ball 22 for dust on the packing ball 22 drops fast, and then a large amount of shower water washes away the dust, can prevent effectively like this that the packing ball 22 scale deposit from blockking up.
After a long period of operation, the bottom of the first grid 21 may be heavily fouled. When the stirring device 4 stirs, the cleaning water pipe 32 of the cleaning device 3 is driven to rotate and spray water to the first grid plate 21, so as to prevent the bottom of the first grid plate 21 from scaling and blocking.
The bottom of the tower body 1 is provided with an inclined plane formed by the drainage plate 7, water falling on the drainage plate 7 is collected to the water outlet 6 along the inclined plane, the flow rate of the water is increased by the drainage plate 7, and mud is prevented from being precipitated at the bottom of the tower body 1.
The dust monitoring device 8 detects whether the dust content in the gas discharged from the gas outlet 12 exceeds the emission standard, and if the dust content exceeds the emission standard, the control device controls the spraying device 23 to spray water, so that the dust removal is ensured to reach the standard.
The dust removal device and the dust removal method for the dust-containing gas realize the combination of three modes of spray dust removal, cyclone dust removal and condensation dust removal, the dust removal efficiency is higher than that of the traditional water bath dust removal, the water consumption is lower, the dust removal efficiency can reach more than 90 percent, and the water consumption is only 40 percent of that of the water bath dust remover in the same level. The dust removing device for the dust-containing gas, provided by the embodiment of the invention, has the advantages of simple structure, high dust removing efficiency, good applicability, low water consumption, blockage prevention, self-cleaning function and convenience in maintenance, and can be widely applied to steam dust removing operation in the metallurgical industry.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A dust removing apparatus for a dust-laden gas, comprising:
the device comprises a tower body, a dust-containing gas inlet, a dust-removing gas outlet and a dust-removing gas outlet, wherein a cavity is formed in the tower body, the lower part of the tower body is provided with the gas inlet through which the dust-containing gas enters the cavity, and the top of the tower body is provided with the gas outlet through which the dust-removed gas is discharged;
the adsorption spraying dust removal device is at least one, and is arranged in the cavity between the air inlet and the air outlet along the height direction of the cavity so as to perform adsorption spraying dust removal operation on the passing dust-containing gas;
and at least one cleaning device is arranged, and each cleaning device is arranged below each adsorption spraying dust removal device in a one-to-one correspondence manner so as to spray from the direction of the adsorption spraying dust removal device below the adsorption spraying dust removal device.
2. A dust removing apparatus for a dust-laden gas as claimed in claim 1, wherein the cleaning means comprises:
the first water pump is positioned outside the tower body;
the cleaning water delivery pipe is arranged below the adsorption spraying dust removal device and is connected to the first water pump;
the cleaning water supply device comprises a cleaning spray head, wherein the cleaning spray head is arranged on a cleaning water pipe and is arranged towards an adsorption spraying dust removal device, and when the first water pump works to supply water, the cleaning spray head sprays cleaning water to the adsorption spraying dust removal device.
3. The dust removing apparatus for a dusty gas according to claim 1, wherein the adsorption spray dust removing apparatus comprises:
the first grid plate is fixedly arranged in the cavity;
a plurality of packing balls are laid on the first grid plate to adsorb dust in the passing dust-containing gas;
and the spraying device is arranged above the packing ball to spray water to the packing ball.
4. A dust removing apparatus for a dust-containing gas as set forth in claim 3, wherein the shower means comprises:
the second water pump is positioned outside the tower body;
the spraying water conveying pipe is arranged above the packing ball and is connected with the second water pump;
and the spraying nozzles are arranged on the spraying water pipe and are arranged towards the filler balls, and when the second water pump works to supply water, the spraying nozzles spray the dedusting water to the filler balls below.
5. A dust-laden gas dust removal apparatus as claimed in claim 3, further comprising:
and the stirring device is arranged above the filler balls and is inserted among the filler balls so as to stir the filler balls. The stirring device is at least one, and each stirring device is installed above each adsorption spraying dust removal device one to one, and is inserted between a plurality of filler balls so as to stir the plurality of filler balls.
6. The dust removing apparatus for a dusty gas according to claim 1, further comprising:
the dehydration layer is a layer, is arranged in the cavity and is positioned between the exhaust port and the adsorption spraying dust removal device.
7. The dust removing apparatus for a dusty gas of claim 6, wherein the dehydration treatment layer comprises:
the second grid plate is fixedly arranged in the cavity;
and the dewatering plate is laid on the second grid plate to absorb moisture in the passing gas.
8. The dust removing apparatus for a dusty gas according to claim 1, further comprising:
the water outlet is formed in the bottom of the side wall of the tower body;
and the drainage plate is fixedly arranged at the bottom of the cavity in the tower body and inclines towards the water outlet, and the water outlet is arranged close to the upper surface of the drainage plate.
9. The dust removing apparatus for a dusty gas according to claim 1, further comprising:
the dust monitoring device is arranged at the exhaust port to detect the dust content in the gas exhausted from the exhaust port and acquire a dust content parameter;
and the control device is connected with the dust monitoring device, the adsorption spraying dust removal device and the cleaning device so as to receive the dust content parameter from the dust monitoring device, and the spraying water amount of the adsorption spraying dust removal device and the cleaning device is controlled according to the change of the dust content parameter.
10. A method for removing dust from a dust-laden gas by using the dust removing apparatus for a dust-laden gas as claimed in any one of claims 1 to 9, comprising:
starting the adsorption spraying dust removal device to perform adsorption spraying dust removal operation on the dust-containing gas when the dust-containing gas passes through the adsorption spraying dust removal device;
introducing dust-containing gas into the tower body from a gas inlet;
and starting the cleaning device, and spraying the adsorption spraying dust removal device from the lower part of the adsorption spraying dust removal device to clean the dirt accumulated at the lower part of the adsorption spraying dust removal device.
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| CN202111133220.8A CN113713538A (en) | 2021-09-27 | 2021-09-27 | Dust removal device and dust removal method for dust-containing gas |
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| CN202111133220.8A CN113713538A (en) | 2021-09-27 | 2021-09-27 | Dust removal device and dust removal method for dust-containing gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114788980A (en) * | 2022-05-18 | 2022-07-26 | 四川铸创安全科技有限公司 | Waste gas treatment equipment that chemical industry safety ring protects usefulness |
| CN114904351A (en) * | 2022-04-06 | 2022-08-16 | 上海尚净环保工程有限公司 | Dust separation system |
-
2021
- 2021-09-27 CN CN202111133220.8A patent/CN113713538A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904351A (en) * | 2022-04-06 | 2022-08-16 | 上海尚净环保工程有限公司 | Dust separation system |
| CN114788980A (en) * | 2022-05-18 | 2022-07-26 | 四川铸创安全科技有限公司 | Waste gas treatment equipment that chemical industry safety ring protects usefulness |
| CN114788980B (en) * | 2022-05-18 | 2023-11-21 | 四川铸创安全科技有限公司 | Waste gas treatment equipment for chemical industry safety environmental protection |
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