CN218774968U - Dust removing device for dust-containing gas - Google Patents
Dust removing device for dust-containing gas Download PDFInfo
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- CN218774968U CN218774968U CN202223077023.1U CN202223077023U CN218774968U CN 218774968 U CN218774968 U CN 218774968U CN 202223077023 U CN202223077023 U CN 202223077023U CN 218774968 U CN218774968 U CN 218774968U
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- dust
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The utility model provides a dust removing device for dust-containing gas, which comprises a shell, wherein a load cavity, an adsorption cavity, a dust collecting cavity and an airflow channel which runs through the load cavity and the adsorption cavity are arranged in the shell; the load cavity is internally provided with a negative ion generating unit and releases negative ions to the dust-containing gas in the gas flow channel through the negative ion generating unit; an anode plate parallel to the airflow channel and a dust cleaning component for cleaning dust on the surface of the anode plate are arranged in the adsorption cavity, and the cross section of the airflow channel in the adsorption cavity is larger than that of the airflow channel in the loading cavity; the dust collection cavity is positioned below the adsorption cavity and receives dust swept down by the dust cleaning component. The utility model discloses can avoid long-term use to lead to the anode plate dust adsorption capacity decline when increasing the anode plate dust adsorption effect.
Description
Technical Field
The utility model relates to an air purification handles the field, and more specifically says, relates to a dirty gas dust collector.
Background
At present, the industrial fields in China, particularly the chemical industry, thermal power generation, feed processing and other industries face increasingly severe dust-containing waste gas treatment problems. Electrostatic dust collection is the most widely used dust-containing waste gas treatment and purification technology at present.
However, the existing electrostatic precipitator has poor dust-containing waste gas treatment effect due to weak negative charge capacity to the particles; in addition, the dust accumulation adheres to and will lead to dust removal effect can descend fast after working a period of time for the anode plate that is used for collecting the negatively charged particulate matter in above-mentioned electrostatic precipitator device, often need demolish the anode plate and wash, and the flow is complicated, the operation is difficult.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the not good problem of above-mentioned electrostatic precipitator dust removal effect, provide a new dirty gas dust collector.
The technical solution of the present invention for solving the above technical problems is to provide a dust removing device for dust-containing gas, which comprises a housing, wherein the housing is provided with a load chamber, an adsorption chamber, a dust collecting chamber and an airflow channel sequentially passing through the load chamber and the adsorption chamber;
the load cavity is internally provided with a negative ion generating unit and releases negative ions to the dust-containing gas in the gas flow channel through the negative ion generating unit;
an anode plate parallel to the airflow channel and a dust cleaning component for cleaning dust on the surface of the anode plate are arranged in the adsorption cavity, and the cross section of the airflow channel in the adsorption cavity is larger than that of the airflow channel in the loading cavity;
the dust collection cavity is positioned below the adsorption cavity and receives dust swept down by the dust cleaning component.
As a further improvement of the present invention, the load chamber includes a portion away from the air inlet of the adsorption chamber, the adsorption chamber includes a portion away from the air outlet of the load chamber, and the airflow passage is formed between the air inlet and the air outlet.
As a further improvement of the utility model, the anion generating unit is including installing in load chamber bottom and being parallel to airflow channel's first negative plate, the surface of first negative plate has a plurality of protruding to airflow channel's first discharge needle.
As a further improvement of the present invention, the negative ion generating unit includes at least one second negative plate installed in the load chamber and perpendicular to the airflow channel, each the second negative plate includes a plurality of through holes, and at least one surface of the second negative plate has a plurality of protruding second discharge needles.
As a further improvement of the present invention, the adsorption cavity is rectangular, the airflow channel is located between two parallel side walls of the adsorption cavity, and each of the parallel side walls is provided with an anode plate;
the bottom of the adsorption cavity is provided with a dust outlet, the dust collection cavity is funnel-shaped, and the top of the dust collection cavity is connected with the dust outlet.
As a further improvement of the utility model, at least one anode plate is arranged in the airflow channel between the parallel side walls.
As a further improvement of the utility model, an electric cathode filament used for releasing anions is arranged between every two anode plates.
As a further improvement, the ash removal component comprises a motor, a transmission mechanism, a frame and a dust removal scraper brush, the dust removal scraper brush is arranged on the frame, and the motor drives the dust removal scraper brush to move up and down through the transmission mechanism so as to clean the dust on the surface of the anode plate.
As a further improvement of the utility model, the ash removal component comprises a driving motor, a driving rod and a scraping blade, the driving motor drives the driving rod to rotate so as to drive the scraping blade to clean the dust on the surface of the anode plate.
The utility model discloses following beneficial effect has: through the release amount that increases the load chamber in order to increase anion at the front end in absorption chamber, increase the ash removal subassembly simultaneously and clean the dust on anode plate surface with automatic in the absorption intracavity, can avoid long-term use the anode plate dust adsorption capacity that leads to descend when increasing the anode plate dust adsorption effect.
Drawings
Fig. 1 is a schematic structural view of a dust removing apparatus for dust-containing gas according to an embodiment of the present invention;
FIG. 2 is a top view of the dusty gas removal device of FIG. 1;
FIG. 3 is a schematic view of a second cathode plate in the dust removing apparatus for dust-containing gas according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of the circuit of the anion generating unit in the dust removing device for dust-containing gas according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of an ash removal assembly in a dust-laden gas dust removal device provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and fig. 2, the schematic diagram of the dust removing apparatus for dirty gas provided by the embodiment of the present invention is that the dust removing apparatus for dirty gas can be applied to clean dirty gas in chemical industry, thermal power generation, and feed processing. The dust removing device for the dust-containing gas in the embodiment specifically comprises a housing, and the housing can be made of a metal material or an insulating material, so as to ensure the consistency of the product and form a load chamber 11, an adsorption chamber 12, a dust collecting chamber 18, and an air flow channel which sequentially penetrates through the load chamber 11 and the adsorption chamber 12 (i.e. under normal conditions, air in the air flow channel flows from the load chamber 11 to the adsorption chamber 12).
The negative ion generating unit 13 is arranged in the load chamber 11, and the negative ion generating unit 13 can release negative ions to the dust-containing gas in the part of the airflow channel in the load chamber 11 after being electrified, and the negative ions can be rapidly attached to the dust in the air in the airflow channel, so that the particulate matters are rapidly charged negatively. Specifically, as shown in fig. 4, the negative ion generating unit 13 may adopt a thyristor to invert high voltage, 160V to 250V mains power input from outside is rectified and limited by diodes VD1 and VD2 and resistors R1 and R2 to form a unidirectional pulsating current, which controls the on/off of the thyristor VS to generate oscillation, and after the voltage is boosted by the transformer T, the negative high voltage is obtained by rectification by the diode VD3, and the negative ion is generated by ionizing air and discharging air. The operation principle and structure of the negative ion generating unit 13 are well known in the art and will not be described herein.
In the present embodiment, the cross section of the gas flow passage in the adsorption chamber 12 is smaller than the cross section of the gas flow passage in the adsorption chamber 12. An anode plate 14 is arranged in the adsorption chamber 12, and the anode plate 14 is arranged in the adsorption chamber 12 in a direction parallel to the airflow channel, specifically, the anode plate 14 can be positively charged by connecting a direct current positive voltage, so as to adsorb negatively charged particles (i.e. negatively charged dust) in the air flowing through the adsorption chamber 12 (airflow channel) in an opposite-charge attraction manner, thereby realizing air purification. And because the cross section of the airflow channel in the adsorption cavity 12 is larger than that of the airflow channel in the load cavity 11, the flow velocity of the gas flowing in from the load cavity 11 is reduced, and turbulent flow is possibly formed, so that the anode plate 14 is more favorable for adsorbing negatively charged dust, and the dust removal effect is improved.
Also disposed within the adsorption chamber 12 is a soot cleaning assembly 16, the soot cleaning assembly 16 being used to clean dust from the surface of the anode plate 14. Specifically, the ash removal assembly 16 can periodically and automatically clean the anode plate 14, thereby preventing the dust removal effect of the anode plate 14 from being reduced due to dust accumulation after the anode plate 14 works for a period of time, and simultaneously avoiding the complicated operations of disassembling, cleaning and reinstalling the anode plate 14. A dirt collection chamber 18 is located below the suction chamber 12 and receives dirt swept by the ash removal assembly 16.
According to the dust removing device for the dust-containing gas, the load cavity 11 is additionally arranged at the front end of the adsorption cavity 12 to increase the releasing amount of anions, and the ash cleaning component 16 is additionally arranged in the adsorption cavity 12 to automatically clean the dust on the surface of the anode plate 14, so that the dust adsorption effect of the anode plate 14 is improved, and the reduction of the dust adsorption capacity of the anode plate 14 caused by long-term use is avoided.
In an embodiment of the present invention, the load chamber 11 includes an air inlet 111 disposed far away from the adsorption chamber 12, the adsorption chamber 12 includes an air outlet 121 disposed far away from the load chamber 11 (specifically, an air outlet pipe is disposed at one end of the adsorption chamber 12 far away from the load chamber 11, the air outlet 121 is disposed at a free end of the air outlet pipe), and accordingly, an air flow channel is formed between the air inlet 111 and the air outlet 121. This dirty gas dust collector accessible air intake 111 is connected to pressurization equipment such as tuber pipe, fan to make dirty gas can flow through airflow channel fast, air outlet 121 then can directly communicate the outside, and the clean air of discharging. In particular, the air inlet 111, the air outlet 121, and the center of the air flow channel may be located on the same straight line, so as to reduce the energy loss of the air flowing through the air flow channel.
The negative ion generating unit 13 may specifically include a first negative plate disposed at the bottom of the load chamber 11 and parallel to the airflow channel, the first negative plate having a plurality of first discharge needles protruding toward the airflow channel on a surface thereof, and the first negative plate may be electrically connected to the resistor R3 in fig. 4, so that when the negative ion generating unit 13 is connected to an external power source, the first discharge needles ionize air to generate negative ions.
In order to make the negative charge amount of the dust in the air flowing through the air flow channel in the load chamber 11, as shown in fig. 3, in an embodiment of the present invention, the negative ion generating unit 13 includes a second cathode plate 131 installed in the load chamber 11 and perpendicular to the air flow channel, the second cathode plate 131 includes a plurality of through holes 1311, and a plurality of second discharge needles 1312 are disposed on a surface of the second cathode plate 131 facing away from the air inlet 111, and the second discharge needles 1312 ionize the air to generate negative ions when the negative ion generating unit 13 is connected to an external power source. When the dust-containing gas enters the airflow channel in the load chamber 11 through the air inlet 111 and passes through the second cathode plate 131 through the through hole 1311, the negative ions generated by the second discharge needles 1312 can be rapidly combined with the dust in the air, so that the load capacity of the dust is greatly improved. Of course, the second discharge needles 1312 may be disposed on a surface of the second cathode plate 131 facing the intake vent, or the second discharge needles 1312 may be disposed on both surfaces of the second cathode plate 131. In addition, a plurality of second cathode plates 131 arranged in parallel can be arranged in the load chamber 11, so that the load capacity of the dust in the control process is further improved.
In one embodiment of the present invention, the adsorption cavity 12 may have a rectangular parallelepiped shape, and accordingly, in the adsorption cavity 12, the airflow channel is located between two parallel side walls of the adsorption cavity 12, and an anode plate 14 (with a hole or an insulating material between the anode plate 14 and the parallel side walls) is disposed on each parallel side wall. The bottom of the adsorption cavity 12 is provided with a dust outlet, the dust collection cavity 18 is funnel-shaped, the top of the dust collection cavity 18 is connected with the dust outlet, the bottom of the dust collection cavity is provided with a dust discharge port 181, and dust in the dust collection cavity 18 can be discharged by opening a baffle plate at the dust discharge port 181. Since the dust collecting chamber 18 has a funnel shape, dust swept from the surface of the anode plate 14 is more easily collected at the bottom of the dust collecting chamber 18, thereby facilitating the discharge of the dust.
In addition, when the volume of the adsorption cavity 12 is large and the distance between two parallel side walls is large, one or more anode plates 14 may be further disposed in the airflow channel, that is, more than two anode plates 14 are disposed in parallel in the adsorption cavity 12, so as to prevent the charged dust in the airflow channel from affecting the adsorption due to being far away from the anode plates 14.
In particular, an electric cathode wire 15 for releasing anions can be added between the two anode plates 14, so that dust without anions between the two anode plates 14 has an increased chance of combining with the anions, and dust removal is facilitated.
Specifically, when the dust-containing gas (waste gas) enters the airflow channel of the loading chamber 11 through the air inlet 111 (the air speed is controlled below 4 m/s), the negative ion generating unit 13 in the loading chamber 11 generates a large amount of negative ions, and the negative ions are rapidly attached to the surface of the particulate matters (i.e., dust) in the air, so that the particulate matters are rapidly negatively charged; the negatively charged particles then enter the adsorption cavity 12 with a larger cross section (the wind speed is reduced to below 2 m/s), the anode plates 14 on the two sides of the adsorption cavity 12 are positively charged under the condition of electrification and generate a very large suction force on the negatively charged particles, so that the particles are quickly adsorbed on the anode plates 14, and escaping particles which are not negatively charged in the loading cavity 11 are ionized by the electric cathode wire 15 to generate negative ion charges in the adsorption cavity 12 and are further adsorbed by the anode plates 14.
In one embodiment of the present invention, the ash cleaning component 16 includes a motor, a transmission mechanism, a frame and a dust removing scraper brush, the dust removing scraper brush is installed on the frame, and the motor drives the dust removing scraper brush to move up and down through the transmission mechanism so as to clean the dust on the surface of the anode plate 14. The specific structure of the ash removing component 16 can adopt the conventional technology in the field, and only needs to be able to remove the dust on the surface of the anode plate 14 (for example, refer to the rectangular frame, the motor and the dust removing scraper brush in the chinese utility model patent with the publication number CN 205762467U), which is not described herein again.
Specifically, after the anode plate 14 works for a period of time, the anode plate 14 can be powered off, the ash removal component 16 is started at the same time, the rolling brush in the ash removal component 16 is tightly attached to the anode plate 14, dust attached to the surface of the anode plate 14 is scraped and brushed to the dust collection cavity 18 below the adsorption cavity 12 from top to bottom under the action of the transmission component and the lifting frame, the ash removal component 16 is restored to the original state after cleaning is finished, and the anode plate 14 is powered on again to realize continuous purification of the dust.
Referring to fig. 5, the ash removing assembly 16 may also include a driving motor, a driving rod 161 and a scraping blade 162, the driving motor drives the driving rod 161 to rotate to drive the scraping blade 162 to clean dust on the surface of the anode plate 14, and the structure of the ash removing assembly can refer to the structure of a car wiper, which is not described herein again. The dust cleaning component with the structure has a simple structure, but has the defect that the corner position can not be cleaned.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A dust removal device for dust-containing gas is characterized by comprising a shell, wherein a load cavity, an adsorption cavity, a dust collection cavity and an airflow channel sequentially penetrating through the load cavity and the adsorption cavity are arranged in the shell;
the load cavity is internally provided with a negative ion generating unit and releases negative ions to the dust-containing gas in the gas flow channel through the negative ion generating unit;
an anode plate parallel to the airflow channel and a dust cleaning component for cleaning dust on the surface of the anode plate are arranged in the adsorption cavity, and the cross section of the airflow channel in the adsorption cavity is larger than that of the airflow channel in the loading cavity;
the dust collection cavity is positioned below the adsorption cavity and receives dust swept down by the dust cleaning component.
2. A dusty gas dust collector as in claim 1 wherein the load chamber comprises an air inlet disposed remote from the adsorption chamber, the adsorption chamber comprises an air outlet disposed remote from the load chamber, and the airflow passage is formed between the air inlet and the air outlet.
3. The dust removing apparatus of claim 2, wherein the negative ion generating unit comprises a first cathode plate disposed at the bottom of the load chamber and parallel to the gas flow channel, and the surface of the first cathode plate has a plurality of first discharge needles protruding toward the gas flow channel.
4. The dust removing apparatus of claim 2, wherein the negative ion generating unit comprises at least one second cathode plate installed in the load chamber and perpendicular to the gas flow channel, each second cathode plate comprises a plurality of through holes, and at least one surface of the second cathode plate has a plurality of second discharge needles protruding therefrom.
5. The dust removing apparatus for dust-containing gas of claim 2, wherein the adsorption chamber is rectangular, the gas flow channel is located between two parallel side walls of the adsorption chamber, and an anode plate is disposed on each of the parallel side walls;
the bottom of the adsorption cavity is provided with a dust outlet, the dust collection cavity is funnel-shaped, and the top of the dust collection cavity is connected with the dust outlet.
6. A dusty gas removal device according to claim 5, in which at least one anode plate is provided in the gas flow channel between the two parallel side walls.
7. The dust removing apparatus for dust-containing gas according to claim 6, wherein an electric cathode wire for releasing anions is provided between each two anode plates.
8. The dust removing device for dust-containing gas of claim 5, wherein the ash removing component comprises a motor, a transmission mechanism, a frame and a dust removing scraper brush, the dust removing scraper brush is arranged on the frame, and the motor drives the dust removing scraper brush to move up and down through the transmission mechanism so as to clean the dust on the surface of the anode plate.
9. The dust removing device for dust-containing gas of claim 5, wherein the ash removing assembly comprises a driving motor, a driving rod and a scraping blade, and the driving motor drives the driving rod to rotate so as to drive the scraping blade to sweep the dust on the surface of the anode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223077023.1U CN218774968U (en) | 2022-11-18 | 2022-11-18 | Dust removing device for dust-containing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223077023.1U CN218774968U (en) | 2022-11-18 | 2022-11-18 | Dust removing device for dust-containing gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218774968U true CN218774968U (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223077023.1U Active CN218774968U (en) | 2022-11-18 | 2022-11-18 | Dust removing device for dust-containing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218774968U (en) |
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- 2022-11-18 CN CN202223077023.1U patent/CN218774968U/en active Active
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