CN113082921A - Dust removal equipment for treating smoke dust of aluminum melting furnace - Google Patents
Dust removal equipment for treating smoke dust of aluminum melting furnace Download PDFInfo
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- CN113082921A CN113082921A CN202110371869.7A CN202110371869A CN113082921A CN 113082921 A CN113082921 A CN 113082921A CN 202110371869 A CN202110371869 A CN 202110371869A CN 113082921 A CN113082921 A CN 113082921A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
Abstract
The invention provides a dust removing device for treating smoke dust of an aluminum melting furnace, which comprises a main body; the main body comprises a first filter assembly, a connecting pipe assembly and a second filter assembly; the first filtering component comprises a first tank body and a spray head; the first tank body is provided with a first cavity, an air inlet, a water inlet and a water outlet; the air inlet is arranged on the side surface of the first tank body; the water inlet is arranged on the upper end surface of the first tank body, and the water outlet is arranged on the lower end surface of the first tank body; the output end of the spray head is arranged in the first cavity, and the input end of the spray head penetrates through the water inlet and extends out of the first tank body; the second filter assembly comprises a second tank body and a filter layer; the second tank body is provided with a second cavity; the filter layer is arranged in the second cavity; one end of the connecting pipe assembly is arranged on the first tank body and extends into the first cavity; the other end of the connecting pipe component is arranged at the lower end of the second tank body. By providing the first filter assembly and the second filter assembly, it is possible to remove most of dust as well as to lower the gas temperature and remove toxic substances.
Description
Technical Field
The invention relates to the technical field of smoke dust treatment equipment, in particular to dust removal equipment for treating smoke dust of an aluminum melting furnace.
Background
With the high-speed development of national economic construction, the demand of national defense, military modern construction and technological progress, various aluminum and aluminum alloy materials are preferred as basic materials for solving energy, environment and safety, are widely applied to various related fields, and enable the aluminum and aluminum alloy processing industry to enter a brand-new high-speed development period. Through the development of half a century, China is the biggest world production country, export country and consumption country of aluminum extruded materials at present. At present, the consumption of industrial aluminum profiles in China is obviously increased more than that of building aluminum profiles, and the industrial aluminum profiles become the development trend of aluminum extrusion material industry in China. However, in the production process of aluminum profiles, aluminum needs to be cast in an aluminum melting furnace, the smoke dust of the aluminum melting furnace is characterized in that the dust is fine and light, the dust is discharged into the atmosphere to cause atmospheric pollution, and certain harmful gases, liquid or metal elements can be adsorbed on the dust and are brought into the deep part of the lung or adhered to the tube wall of the bronchus along with the breathing of people to cause or aggravate various diseases of respiratory organs. In addition, the dust in the air can also reduce the visibility of the atmosphere, the generated smoke can reduce the solar radiation energy reaching the earth surface, and great influence is caused on human health and ecological environment, but the dust removal effect of the existing dust removal equipment for the aluminum melting furnace is not ideal, most of dust and toxic substances contained in the dust cannot be filtered, and the production environment protection requirement and the health problem of staff cannot be met.
Disclosure of Invention
Based on the above, in order to solve the problems that the existing dust removal equipment for treating the smoke dust of the aluminum melting furnace has unsatisfactory dust removal effect and cannot remove toxic substances in the dust, the invention provides the dust removal equipment for treating the smoke dust of the aluminum melting furnace, and the specific technical scheme is as follows:
a dust removing device for treating smoke dust of an aluminum melting furnace comprises a main body;
the body comprises a first filter assembly, a connector tube assembly and a second filter assembly;
the first filtering component comprises a first tank body and a spray head;
the first tank body is provided with a first cavity, an air inlet, a water inlet and a water outlet;
the air inlet is arranged on the side surface of the first tank body; the water inlet is arranged on the upper end surface of the first tank body, and the water outlet is arranged on the lower end surface of the first tank body;
the output end of the spray head is arranged in the first cavity, and the input end of the spray head penetrates through the water inlet and extends out of the first tank body;
the second filter assembly comprises a second tank body and a filter layer; the second tank body is provided with a second cavity; the filter layer is arranged in the second cavity;
one end of the connecting pipe assembly is arranged on the first tank body and extends into the first cavity; the other end of the connecting pipe assembly is arranged at the lower end of the second tank body.
The dust collecting equipment for treating smoke dust of the aluminum melting furnace provided by the technical scheme has the beneficial effects that compared with the prior art: by arranging the first filtering assembly, the liquid sprayed in the first cavity through the water inlet can be removed, the temperature of the gas can be reduced, and meanwhile, most toxic substances in the dust can be removed, so that the health of human beings is further guaranteed; through setting up first filtering component, filter the dust through the filter layer to and because of the other end setting of connecting tube subassembly is at the lower extreme of the second jar of body, deposit the lower extreme at the second cavity because of the relation of the gravity of dust self, thereby realize the purpose to the separation dust, make the gas after melting the aluminium stove and handle do not have the injury to the human body and can not lead to the fact the destruction to the environment.
Further, the spray head comprises a box body, a water inlet pipe and a nozzle assembly;
the main body further comprises a rotating assembly; the rotating assembly comprises a driving motor and a transmission shaft;
the lower end of the water inlet pipe is arranged in the first cavity and is connected with the upper surface of the box body, and the upper end of the water inlet pipe penetrates through the water inlet and extends out of the upper surface of the first tank body; the upper end of the water inlet pipe is provided with a first gear; the driving motor and the transmission shaft are arranged on the upper surface of the first tank body, and the power output end of the driving motor is connected with one end of the transmission shaft; the other end of the transmission shaft is meshed with the first gear;
the nozzle assembly is disposed within the cartridge body.
Further, the nozzle assembly comprises a plurality of nozzles and a fixed ring;
the side surface of the box body is provided with a plurality of first through holes; the first through hole corresponds to the nozzle in size;
the fixing ring is arranged on the lower surface of the box body;
one end of each nozzle is correspondingly arranged on the fixed ring; the other end of the nozzle correspondingly extends out of the box body through the first through hole.
Furthermore, a bent spraying channel is arranged inside the nozzle.
Furthermore, the nozzle is made of a silicon carbide material.
Further, the filter layer comprises a plurality of first folded layers and a plurality of second folded layers;
the plurality of first folding layers and the plurality of second folding layers are alternately arranged;
the bottom of the filter layer is a sealing structure; the upper end of the filter layer is connected with the upper end of the second cavity.
Further, the horizontal cross-sectional length of the first folded layer is in the range of 1/3 to 2/3 of the second folded layer.
Furthermore, the filter layer is of a cylindrical structure shape, and the upper end of the filter layer is fixed to the upper end of the second cavity in a pasting mode.
Further, the first tank body water outlet detection module; the water outlet detection module comprises a liquid level sensor and a drainage pump;
the liquid level sensor is arranged on one side of the first cavity; the liquid level sensor is used for detecting whether the liquid reaches a certain height or not and transmitting information to the drainage pump in real time;
the drain pump is provided at the main body; the drainage pump is used for draining the water in the first cavity.
Further, the body further comprises a frame;
the first filter assembly, the connecting tube assembly and the second filter assembly are disposed at the body based on the frame.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic structural view of a dust removing apparatus for treating fumes from an aluminum melting furnace according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a first tank of the dust removing apparatus for treating fumes from an aluminum melting furnace according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic structural view of a box body and a nozzle assembly of the dust removing apparatus for treating fume of an aluminum melting furnace according to an embodiment of the present invention;
FIG. 5 is an exploded view of a box and a nozzle assembly of a dust removing apparatus for treating fumes from an aluminum melting furnace according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a second tank of the dust removing apparatus for treating fumes from an aluminum melting furnace according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a filter layer of a dust removing apparatus for treating fume of an aluminum melting furnace according to an embodiment of the present invention.
Description of reference numerals:
11-connecting the tube assembly; 12-a frame; 21-a first tank; 22-a first cavity; 23-an air inlet; 24-a water inlet; 25-a water outlet; 31-a second can; 32-a second cavity; 33-a filter layer; 34-a first folded layer; 35-a second folded layer; 40-a spray head; 41-box body; 42-a nozzle; 43-a retainer ring; 44-a drive motor; 45-a first gear; 46-a water inlet pipe; 47-a drive shaft; 48-groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1 to 6, a dust removing apparatus for treating fumes of an aluminum melting furnace according to an embodiment of the present invention includes a main body;
the main body comprises a first filter assembly, a connecting pipe assembly 11 and a second filter assembly;
the first filtering assembly comprises a first tank 21 and a spray head 40;
the first tank 21 is provided with a first cavity 22, an air inlet 23, a water inlet 24 and a water outlet 25;
the air inlet 23 is arranged on the side surface of the first tank body 21; the water inlet 24 is arranged on the upper end surface of the first tank body 21, and the water outlet 25 is arranged on the lower end surface of the first tank body 21;
the output end of the spray head 40 is arranged in the first cavity 22, and the input end of the spray head 40 passes through the water inlet 24 and extends out of the first tank 21;
the second filter assembly comprises a second tank 32 and a filter layer 33; the second tank 32 is provided with a second cavity 32; the filter layer 33 is disposed within the second cavity 32;
one end of the connecting pipe assembly 11 is arranged on the first tank 21 and extends into the first cavity 22; the other end of the connecting pipe assembly 11 is disposed at the lower end of the second tank 32.
The dust collecting equipment for treating smoke dust of the aluminum melting furnace provided by the technical scheme has the beneficial effects that compared with the prior art: by arranging the first filtering assembly, the liquid sprayed in the first cavity 22 through the water inlet 24, and the sprayed liquid or the sprayed liquid containing corresponding chemical agents, most of dust can be removed, the temperature of gas can be reduced, most of toxic substances in the dust can be removed, and further, the health of workers is guaranteed; through setting up first filter assembly, filter the dust through filter layer 33 to and because of the other end setting of connecting tube subassembly 11 is at the lower extreme of the second jar of body 31, because of the relation of the gravity of dust self and the deposit is at the lower extreme of second cavity 32, thereby the realization is to the purpose of separation dust, makes the gas after melting the aluminium stove and handles not harm the human body and can not lead to the fact the destruction to the environment.
Further, can set up a plurality of second filtering component in order to increase gaseous dust removal effect, through the upper end with a plurality of second jar of body 31 and the lower extreme intercommunication of another second jar of body 31, can realize the purpose of purifying many times.
In one embodiment, the spray head 40 includes a box body 41, a water inlet pipe 46 and a nozzle assembly;
the main body further comprises a rotating assembly; the rotating assembly comprises a driving motor 44 and a transmission shaft 47;
the lower end of the water inlet pipe 46 is arranged in the first cavity 21 and connected with the upper surface of the box body 41, and the upper end of the water inlet pipe 46 penetrates through the water inlet 24 and extends out of the upper surface of the first tank body 21; the upper end of the water inlet pipe 46 is provided with a first gear 45; the driving motor 44 and the transmission shaft 47 are arranged on the upper surface of the first tank 21, and the power output end of the driving motor 44 is connected with one end of the transmission shaft 47; the other end of the transmission shaft 47 is meshed with the first gear 45;
the nozzle assembly is disposed within the cartridge body 41. The filling liquid flows into the box body from the water inlet pipe and then sprays the foggy liquid into the first cavity from the nozzle assembly, and the foggy liquid is more fully contacted with the gas, so that the effects of neutralizing toxic substances in the gas and dissolving dust are fully realized.
In one embodiment, the nozzle assembly includes a plurality of nozzles 42 and a retaining ring 43;
a plurality of first through holes are formed in the side surface of the box body 41; the first through hole corresponds to the nozzle 42 in size; the fixing ring 43 is arranged on the lower surface of the box body 41; one end of each nozzle 42 is correspondingly arranged on the fixed ring 43; the other end of the nozzle 42 correspondingly extends out of the box body 41 through the first through hole.
Further, the nozzle 42 is fixed in the fixing ring 43 based on a bolt connection.
The installation process is as follows: fixing the fixing ring 43 on the lower surface of the box body 41, matching a plurality of nozzles 42 with the first through holes one by one, fixing one end of each nozzle 42 with the fixing ring 43 through a bolt at the box body 41, and connecting the box body 41 with the lower end of the water inlet pipe 46; the first gear 45 at the upper end of the water inlet pipe 46 is engaged with the other end of the transmission shaft 47, and one end of the transmission shaft 47 is connected with the power output end of the driving motor 44.
The liquid to be added flows into the box 41 from the upper end of the inlet tube 46, and is then ejected from the nozzle 42 in the box 41 toward the first chamber 22.
In one embodiment, the nozzle 42 is provided with a bent spray passage therein.
In one embodiment, the nozzle 42 is fabricated from a silicon carbide material. Silicon carbide has the advantage of stable chemical properties, and when a liquid containing a certain chemical substance needs to be sprayed into the first cavity 22, the liquid containing the certain chemical substance does not have any influence on the nozzle 42; silicon carbide has the advantage of good wear resistance, and is beneficial to long-term use of the nozzle 42.
In one embodiment, the filter layer 33 comprises a plurality of first folded layers 34 and a plurality of second folded layers 35;
the plurality of first folded layers 34 and the plurality of second folded layers 35 are alternately disposed and connected to each other; the bottom of the filter layer 33 is a sealing structure; the upper end of the filter layer 33 is connected to the upper end of the second chamber 32.
Further, the filter layer 33 is of a cylindrical structure, and the upper end of the filter layer 33 is connected with the upper end of the second cavity 32 through pasting, so that the filter layer 33 is more convenient to replace and operate, and the labor intensity of operators is greatly reduced.
Further, the first folded layer 34 and the second folded layer 35 are alternately arranged, so that the filtering area of the filtering layer 33 is increased, and the filtering performance of the filtering layer 33 is further improved.
Furthermore, the filter layer 33 is made of high-quality wood pulp fiber filter paper, the filtering capacity of the material can reach 0.3 micron, the filtering efficiency can reach 99.96 percent, and the material has good wear resistance, can better withstand pulse back flushing of air flow compared with the traditional filter material, can be repeatedly cleaned, greatly reduces the actual production cost, and is beneficial to wide application of the device.
In one embodiment, the horizontal cross-sectional length of the first folded layer 34 is in the range of 1/3 to 2/3 of the second folded layer 35.
In conventional filter element solutions, the filter layers usually have the same service length, which, depending on the gas flow conditions, may lead to a plurality of filter layers arranged next to one another lying directly against one another along their effective filter surfaces, which leads to a type of "blockage" in this continuous region, since the substance to be filtered can no longer reach all the filter layers of the combined element in a smooth manner, so that the function of the filter cannot be fulfilled. However, by producing the first folded layer 34 with a smaller length, the first folded layer 34 is reliably held in its position independently of the flow conditions, so that the dust can be effectively reliably filtered out of the gas over the entire service life of the second filter assembly.
Further, stability is generated by providing mutual support of the first folded layer 34 and the second folded layer 35 according to the present invention, wherein the first folded layer 34 is lower than the second folded layer 35, and when the gas moves from the second cavity 32 upward and clockwise, the second folded layer 35 acts as a support for the first folded layer 34, the gas collides with the portions of the first folded layer 34 and the second folded layer 35 higher than the second folded layer 35, thereby separating the dust; similarly, when the gas moves from the second chamber 32 from bottom to top and counterclockwise, the first folded layer 34 supports the second folded layer 35, and the gas collides with the second folded layer 35, thereby separating the dust. Thus, a pressure-stabilizing structure for the filter element is achieved via the filter layers of different manufacturing heights, resulting in a filter element with improved filtration efficiency over the service life and longer service life.
In one embodiment, the filter layer 33 has a cylindrical structure, and the upper end of the filter layer 33 is fixed to the upper end of the second cavity 32 by means of adhesion.
In one embodiment, the first tank 21 comprises a water-out detection module; the water outlet detection module comprises a liquid level sensor and a drainage pump; the liquid level sensor is arranged on one side of the first cavity 22; the liquid level sensor is used for detecting whether the liquid reaches a certain height or not and transmitting information to the drainage pump in real time; the drain pump is used for draining the water of the first chamber 22.
Specifically, the liquid level sensor is disposed below one end of the connecting pipe assembly 11, and when the height of the sprayed liquid accumulated in the first cavity 22 reaches the liquid level sensor, the drainage pump extracts and discharges the accumulated liquid in the first cavity 22, so as to prevent the liquid from flowing into the second cavity 32, and thus the filtering effect of the filtering layer 33 is not affected.
In one embodiment, the body further comprises a frame 12; the first filter assembly, the connection pipe assembly 11, and the second filter assembly are disposed at the main body based on the frame 12.
Further, the upper end of the second tank 31 is provided with an exhaust port for exhausting the gas filtered through the filter layer 33.
The working process is as follows: the liquid level sensor and the drainage pump are started firstly, then the liquid to be sprayed is connected to the water inlet 24, the liquid is sprayed out from the nozzle 42, the air inlet 23 is opened, and the gas generated in the aluminum melting furnace for the aluminum profile enters the first cavity 22. In the first cavity 22, the dust in the gas is sufficiently contacted with the atomized liquid sprayed at the nozzle 42, most of the dust is dissolved with the liquid and then discharged from the water outlet 25, the gas is transferred into the second tank 31 through the connecting pipe assembly 11, the gas is diffused from the lower part of the second tank 31 to the upper part of the second tank 31, the dust in the gas is further isolated through the filtration of the filter layer 33 and the influence of the self weight of the dust in the process, and the gas is output from the upper part of the second tank 31.
In summary, the following steps: by arranging the first filtering assembly, the liquid sprayed in the first cavity 22 through the water inlet 24, and the sprayed liquid or the sprayed liquid containing corresponding chemical agents, most of dust can be removed, the gas temperature can be reduced, and meanwhile, most of toxic substances in the dust can be removed, so that the health of human beings is further guaranteed; through setting up first filter assembly, filter the dust through filter layer 33 to and because of the other end setting of connecting tube subassembly 11 is at the lower extreme of the second jar of body 31, because of the relation of the gravity of dust self and the deposit is at the lower extreme of second cavity 32, thereby the realization is to the purpose of separation dust, makes the gas after melting the aluminium stove and handles not harm the human body and can not lead to the fact the destruction to the environment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A dust removal device for treating smoke dust of an aluminum melting furnace is characterized by comprising a main body;
the body comprises a first filter assembly, a connector tube assembly and a second filter assembly;
the first filtering component comprises a first tank body and a spray head;
the first tank body is provided with a first cavity, an air inlet, a water inlet and a water outlet;
the air inlet is arranged on the side surface of the first tank body; the water inlet is arranged on the upper end surface of the first tank body, and the water outlet is arranged on the lower end surface of the first tank body;
the output end of the spray head is arranged in the first cavity, and the input end of the spray head penetrates through the water inlet and extends out of the first tank body;
the second filter assembly comprises a second tank body and a filter layer; the second tank body is provided with a second cavity; the filter layer is arranged in the second cavity;
one end of the connecting pipe assembly is arranged on the first tank body and extends into the first cavity; the other end of the connecting pipe assembly is arranged at the lower end of the second tank body.
2. The dust removing apparatus for treating smoke of an aluminum melting furnace according to claim 1, wherein the nozzle head comprises a box body, a water inlet pipe and a nozzle assembly;
the main body further comprises a rotating assembly; the rotating assembly comprises a driving motor and a transmission shaft;
the lower end of the water inlet pipe is arranged in the first cavity and is connected with the upper surface of the box body, and the upper end of the water inlet pipe penetrates through the water inlet and extends out of the upper surface of the first tank body; the upper end of the water inlet pipe is provided with a first gear; the driving motor and the transmission shaft are arranged on the upper surface of the first tank body, and the power output end of the driving motor is connected with one end of the transmission shaft; the other end of the transmission shaft is meshed with the first gear;
the nozzle assembly is disposed within the cartridge body.
3. A dust extraction apparatus for processing aluminium smelter flue dust according to claim 2, wherein the nozzle assembly includes a plurality of nozzles and a retaining ring;
the side surface of the box body is provided with a plurality of first through holes; the first through hole corresponds to the nozzle in size;
the fixing ring is arranged on the lower surface of the box body;
one end of each nozzle is correspondingly arranged on the fixed ring; the other end of the nozzle correspondingly extends out of the box body through the first through hole.
4. A dusting apparatus for treating aluminium smelter flue dust according to claim 3, characterised in that the nozzle is internally provided with a bent spray channel.
5. A dust collecting apparatus for treating smoke from an aluminium melting furnace according to claim 4, wherein the nozzle is made of a silicon carbide material.
6. The dust removing apparatus for treating fume of an aluminum melting furnace according to claim 1, wherein said filter layer comprises a plurality of first folded layers and a plurality of second folded layers;
the plurality of first folding layers and the plurality of second folding layers are alternately arranged;
the bottom of the filter layer is a sealing structure; the upper end of the filter layer is connected with the upper end of the second cavity.
7. A dust extraction apparatus for use in the treatment of aluminium smelter flue dust according to claim 6, wherein the horizontal cross-sectional length of the first folded layer is in the range 1/3 to 2/3 of the second folded layer.
8. The dust removing apparatus for treating smoke dust of an aluminum melting furnace according to claim 7, wherein the filter layer has a cylindrical structure shape, and the upper end of the filter layer is fixed to the upper end of the second chamber body by means of adhesion.
9. The dust removal apparatus for processing aluminum melting furnace fumes of claim 1, wherein the first tank further comprises a water outlet detection module; the water outlet detection module comprises a liquid level sensor and a drainage pump;
the liquid level sensor is arranged on one side of the first cavity; the liquid level sensor is used for detecting whether the liquid reaches a certain height or not and transmitting information to the drainage pump in real time;
the drainage pump is used for draining the water in the first cavity.
10. A dust extraction apparatus for processing aluminium smelter flue dust according to claim 1, wherein the main body further includes a frame;
the first filter assembly, the connecting tube assembly and the second filter assembly are disposed at the body based on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110371869.7A CN113082921A (en) | 2021-04-07 | 2021-04-07 | Dust removal equipment for treating smoke dust of aluminum melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110371869.7A CN113082921A (en) | 2021-04-07 | 2021-04-07 | Dust removal equipment for treating smoke dust of aluminum melting furnace |
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| CN113082921A true CN113082921A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110371869.7A Pending CN113082921A (en) | 2021-04-07 | 2021-04-07 | Dust removal equipment for treating smoke dust of aluminum melting furnace |
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Application publication date: 20210709 |
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| RJ01 | Rejection of invention patent application after publication |