Smelting flue gas purification device

Abstract

The invention provides a smelting flue gas purifying device, and relates to the technical field of industrial waste gas treatment.The purifying device comprises a heat absorption primary purifying bin, a flue gas pipeline, a purified flue gas discharging bin and a filtering and purifying mechanism, a lower annular disc body is arranged on the upper surface of the heat absorption primary purifying bin, and an upper annular disc body is arranged at the bottom of the purified flue gas discharging bin; the filtering and purifying mechanism comprises a rotary switching part, two annular rotating chucks and a plurality of filter cartridge assemblies, and the rotary switching part is connected with the outer side wall of the inner ring of one annular rotating chuck; a gas guide component is also arranged on the purified flue gas discharge bin; the end, extending into the purified flue gas discharging bin, of the gas guiding component is located at the joint of the flue gas discharging channel and the purified flue gas discharging bin, and airflow entering the flue gas discharging channel can act on the gas guiding component. Particle impurities filtered in the filter cartridge assembly can be effectively cleaned, blockage is avoided, smoke filtering and purifying work does not need to be stopped, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial waste gas treatment, and in particular to a smelting fume purification device. Background Art

[0002] At present, in many industries in the metal and chemical fields, the smelting of metals and other materials will produce a large amount of flue gas, which usually contains a large amount of ash, heavy metal particles and other smoke, as well as harmful gases such as sulfur dioxide and nitrogen oxides. If it is directly discharged outdoors, it will have a great impact on the environment. In order to protect the environment and the health of workers, the smelting flue gas needs to be purified.

[0003] Before removing harmful gases contained in smelting flue gas, it is necessary to filter the particulate impurities in the flue gas. Conventional smelting flue gas purification treatment devices only introduce the flue gas into the filter tank and use the filter cylinder or filter plate to filter the smoke. However, this method of filtering and removing smoke can easily lead to more impurities being retained on the side wall of the filter cylinder or on the filter plate, causing blockage. It is necessary to replace or clean the impurities in time, which will cause the flue gas purification work to stop, which may affect the progress and efficiency of the smelting work. Summary of the invention

[0004] The purpose of the present invention is to provide a smelting fume purification device to solve the technical problems existing in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: The smoke exhaust gas purifier box is provided with a heat-absorbing primary purification chamber, a smoke duct, a smoke exhaust gas chamber and a filter purification mechanism. The heat-absorbing primary purification chamber has a smoke adsorption liquid inside and is equipped with a heat exchange component. One end of the smoke exhaust gas purifier box is connected to the smoke exhaust passage of the smelting equipment and the other end is connected to the outer wall of the heat absorption primary purification chamber; the upper surface of the heat absorption primary purification chamber is provided with a lower annular disk body, and the lower annular disk body is provided with two first smoke guide holes connected to the interior of the heat absorption primary purification chamber. The purified smoke exhaust chamber is located directly above the heat absorption primary purification chamber and the purified smoke exhaust chamber and the heat absorption primary purification chamber are fixedly connected by a plurality of support pillars. An upper annular disk body is provided at the bottom of the purified smoke exhaust chamber, and two second smoke guide holes are provided on the upper annular disk body respectively corresponding to the two first smoke guide holes and connected to the interior of the purified smoke exhaust chamber, and the top of the purified smoke exhaust chamber is provided with a smoke exhaust channel; the filter purification mechanism is rotatably arranged between the lower annular disk body and the upper annular disk body, and the filter purification mechanism comprises a rotating switching part, two The filter element is a filter element which is provided at the bottom of the filter element and is used to filter and purify the smoke passing through the filter element. The filter element is a filter element which is used to filter and purify the smoke passing through the filter element. The filter element is a filter element which is used to filter and purify the smoke passing through the filter element.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional solution: two opposite air inlet grooves are provided on the upper annular disc body and the two air inlet grooves are respectively located on the sides of the purified smoke exhaust bin, and the air inlet grooves are also connected to the air guide component and the air guide component can guide the external airflow into the air inlet groove.

[0007] In an optional scheme: the air guide component includes a rotor assembly and two groups of air injection assemblies symmetrically arranged on the two side walls of the purified smoke exhaust bin, the rotor assembly is rotatably arranged inside the purified smoke exhaust bin and its two ends extend to the outer side of the purified smoke exhaust bin, and the rotor assembly can rotate when the smoke passes through; each group of air injection assemblies has at least two air injection assemblies and the air injection assembly includes a cylinder part, a piston rod, an air outlet pipe and an air inlet end, the cylinder part is fixed on the outer wall of the purified smoke exhaust bin and has a piston plate inside the cylinder part, one end of the piston rod extends to the inside of the cylinder part and is connected to the piston plate, and the other end of the piston rod is connected to the end of the rotor assembly extending to the outer wall of the purified smoke exhaust bin; when the rotor assembly rotates, it acts on the end of the piston rod and causes it to move back and forth laterally, the air outlet pipe and the air inlet end are respectively arranged on the outer wall of one end of the cylinder part, one end of the air outlet pipe is connected to the top of the upper annular disk and is connected to the air inlet groove, and a one-way air valve is provided on both the air outlet pipe and the air inlet end.

[0008] In an optional scheme: the rotor assembly includes a rotor shaft and two turntable parts, the rotor shaft is rotatably arranged inside the purified smoke exhaust bin and both ends extend to the outside of the purified smoke exhaust bin, the two turntable parts are respectively fixed on the two end parts of the rotor shaft, an eccentric column is fixed on the end face of each turntable part, a driven vertical frame connected to the end of the piston rod is also arranged on the front side of the end face of the turntable part, the eccentric column passes through the driven vertical frame, an injection rotor is arranged on the rotor shaft and the smoke can drive the injection rotor to rotate when passing through the injection rotor.

[0009] In an optional scheme: the rotating switching part includes a switching shaft and a switching motor, the switching shaft is rotatably arranged at the bottom of the purified smoke exhaust bin and the switching shaft is fixedly connected to the outer wall of the inner ring of one of the annular rotating chucks through an upper support arm, the switching motor is arranged on the heat-absorbing primary purification bin and the output end of the switching motor is connected to the end of the switching shaft.

[0010] In an optional scheme: two opposite exhaust grooves and two corresponding lower smoke outlet grooves are arranged on the end surface of the lower annular disk, two upper smoke inlet grooves corresponding to the two lower smoke outlet grooves are arranged on the upper annular disk, two first smoke guide holes are respectively connected to the two lower smoke outlet grooves, each exhaust groove is provided with an air outlet hole, and the bottom wall of the lower annular disk is provided with multiple air guide channels corresponding to the multiple air outlet holes, when two of the filter cartridge assemblies correspond to the two first smoke guide holes, the remaining filter cartridge assemblies correspond to the multiple air outlet holes.

[0011] In an optional solution: the filter cartridge assembly includes a smoke guide tube portion and a filter portion, the bottom of the smoke guide tube portion is installed at the corresponding air-permeable connection hole, and the filter portion is installed inside the smoke guide tube portion and has a cone structure.

[0012] In an optional scheme: a fixing frame is fixed inside the air permeable connecting hole and a rotating ring rotatably connected to the end of the smoke guide tube portion is arranged on the outside of the air permeable connecting hole, and the filter cartridge assembly also includes a scraper rod shaft and multiple scraper rod portions, the scraper rod shaft is rotatably arranged on the top of the filter portion and the top of the scraper rod shaft is fixedly connected to the fixing frame, the lower end of the scraper rod shaft extends to the inside of the filter portion, multiple scraper rod portions are attached to the inner wall of the filter portion and the top of the scraper rod portion is fixedly connected to the bottom end of the scraper rod shaft, an external gear is arranged on the outer wall of the smoke guide tube portion, and an internal gear ring portion with the rotation center of the filter cartridge assembly as the center line is arranged on the outside of the filtering and purification mechanism, and the two ends of the internal gear ring portion are respectively connected to two support column members, and when the filter cartridge assembly is on the outside of the purified smoke discharge bin, the external gear and the internal gear ring portion are in a meshing state.

[0013] In an optional scheme: the heat exchange component includes a heat exchange bin body and a heat exchange curve tube body, the heat exchange bin body is fixed inside the heat absorption primary purification bin and the lower end of the heat exchange bin body is provided with a plurality of down-injection holes for inserting the flue gas adsorption liquid, the end of the flue gas pipeline extending into the heat absorption primary purification bin is connected with the interior of the heat exchange bin body, the heat exchange curve tube body is arranged inside the heat exchange bin body and heat exchange connecting pipes are arranged at both ends of the heat exchange curve tube body, the heat exchange connecting pipes pass through the end wall of the heat exchange bin body and the side wall of the heat absorption primary purification bin and are connected to external conveying equipment.

[0014] In an optional solution: the heat exchange connecting pipe is provided with a heat exchange rotor located inside the heat exchange bin body and a stirring blade located inside the heat absorption primary purification bin; the heat exchange rotor corresponds to the end of the flue gas duct extending into the heat exchange bin body.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects: The smoke purification device provided by the present invention has multiple filter cartridge assemblies arranged between the heat-absorbing primary purification chamber and the purified smoke exhaust chamber, and performs air guiding and smoke filtering in a switchable manner, which can avoid stopping the smoke filtering and purification work when cleaning the filter cartridge assemblies; at the same time, the flow of smoke can be used to guide the outdoor airflow to the inside of the filter cartridge assembly that needs to be cleaned, so as to achieve reverse blowing of the airflow and take away the particulate impurities inside the filter cartridge assembly, which can effectively clean the particulate impurities filtered inside the filter cartridge assembly, avoid blockage and there is no need to stop the filtering and purification of the smoke, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the flue gas purification device in the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the lower annular disk in the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the upper annular disk in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the air guide component in the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the filtering and purification mechanism in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the filter cartridge assembly in the present invention.

[0023] Figure 7 It is a schematic diagram of the internal structure of the heat-absorbing primary purification chamber in the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the heat exchange component in the present invention.

[0025] Notes on reference numerals: heat absorbing primary purification chamber 100, smoke duct 200, purified smoke discharge chamber 300, smoke exhaust channel 310, support column 400, inner gear ring portion 410, filtering and purification mechanism 500, annular rotating chuck 510, air permeable connection hole 520, fixing frame 521, rotating ring 530, filter cartridge assembly 540, smoke guide tube portion 541, filter portion 542, external gear 543, scraper rod shaft 544, scraper rod portion 545, switching shaft 550, switching motor 560, upper support arm 570, lower annular disc 600, lower smoke outlet groove 610, exhaust groove 620, first smoke guide hole 630, air outlet hole 640, air guide channel 650, upper annular disk body 700, upper smoke inlet groove 710, second smoke guide hole 720, air inlet groove 730, air guide component 800, rotor assembly 810, rotor shaft 811, air injection rotor 812, turntable part 813, eccentric column 814, driven vertical frame 815, air injection assembly 820, air cylinder part 821, piston rod 822, air outlet pipe 823, air inlet end 824, heat exchange assembly 900, heat exchange bin body 910, lower air injection hole 920, heat exchange curve tube body 930, heat exchange connecting pipe 940, heat exchange rotor 950, stirring blade 960. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The left, right, up, and down positions of the various components given in the drawings are only one arrangement method, and the specific positions are set according to specific needs.

[0028] In one embodiment, Figure 1-Figure 5As shown, a smelting flue gas purification device includes a heat-absorbing primary purification chamber 100, a flue gas duct 200, a purified flue gas discharge chamber 300 and a filtering and purification mechanism 500. The heat-absorbing primary purification chamber 100 has a flue gas adsorption liquid inside and is installed with a heat exchange component 900. One end of the flue gas duct 200 is connected to the exhaust channel of the smelting equipment and the other end is connected to the outer wall of the heat-absorbing primary purification chamber 100. The upper surface of the heat-absorbing primary purification chamber 100 is provided with a lower annular disk 600 and the lower annular disk 600 is provided with two first smoke guide holes 630 connected to the inside of the heat-absorbing primary purification chamber 100. The purified flue gas discharge chamber 300 has a flue gas adsorption liquid inside and is installed with a heat exchange component 900. One end of the flue gas duct 200 is connected to the exhaust channel of the smelting equipment and the other end is connected to the outer wall of the heat-absorbing primary purification chamber 100. The purified smoke exhaust chamber 300 is located directly above the heat absorbing primary purification chamber 100 and is fixedly connected to the heat absorbing primary purification chamber 100 by a plurality of support pillars 400. An upper annular disc 700 is provided at the bottom of the purified smoke exhaust chamber 300. Two second smoke guide holes 720 corresponding to the two first smoke guide holes 630 and connected to the inside of the purified smoke exhaust chamber 300 are provided on the upper annular disc 700. A smoke exhaust channel 310 is provided at the top of the purified smoke exhaust chamber 300. The filtering and purifying mechanism 500 is rotatably arranged between the lower annular disc 600 and the upper annular disc 700 and the filtering and purifying mechanism 500 includes a rotating cutting mechanism. The filter cartridge assemblies 540 are provided with a plurality of filter cartridge assemblies 540 for filtering and purifying the passing smoke. The two annular rotating chucks 510 are respectively rotatably sleeved on the lower annular disc body 600 and the upper annular disc body 700, and the annular rotating chucks 510 are provided with a plurality of circumferentially distributed air-permeable connecting holes 520. The plurality of filter cartridge assemblies 540 are respectively arranged between the two annular rotating chucks 510, and the filter cartridge assemblies 540 are correspondingly installed between the two relatively aligned air-permeable connecting holes 520. Any two filter cartridge assemblies 540 whose centers are on the same diameter line can be rotated to positions corresponding to the two first smoke guide holes 630. The switching part is arranged on the upper end surface of the heat-absorbing primary purification chamber 100 and the rotating switching part is connected to the outer side wall of the inner circle of one of the annular rotating chucks 510; an air guide component 800 is also arranged on the purified smoke exhaust chamber 300 and one end of the air guide component 800 extends to the inside of the purified smoke exhaust chamber 300, and the air guide component 800 is also connected to the top of the upper annular disk 700 located on the side of the purified smoke exhaust chamber 300; the end of the air guide component 800 extending to the purified smoke exhaust chamber 300 is at the connection between the smoke exhaust channel 310 and the purified smoke exhaust chamber 300 and the airflow entering the smoke exhaust channel 310 can act on the air guide component 800.

[0029] In the embodiment of the present invention, the smelting flue gas is introduced into the heat absorbing primary purification chamber 100 through the exhaust channel of the smelting equipment and the flue gas pipeline 200, wherein the heat exchange component 900 contacts the flue gas and exchanges heat, takes away the heat of the flue gas and stores it, and then the flue gas enters the flue gas adsorption liquid, the flue gas adsorption liquid is water or other liquids that adsorb particles, some particles and substances in the flue gas are adsorbed by the flue gas adsorption liquid, and some of the particulate matter emerges from the flue gas adsorption liquid with vaporized liquid, which increases the weight of the flue gas particles. The purification chamber 100 is introduced into the interior of two filter cartridge assemblies 540 aligned with and connected to the first smoke guide hole 630, and the filter cartridge assemblies 540 filter particulate matter in the smoke again; finally, the smoke enters the interior of the purified smoke exhaust chamber 300 through the second smoke guide hole 720 and is discharged from the smoke exhaust channel 310; when too much particulate matter adheres to the inside of the filter cartridge assembly 540 used for filtering and purifying smoke, the rotation switching part starts to work and drives the two annular rotating chucks 510 to rotate, and the annular rotating chucks 510 drive multiple filter cartridge assemblies 540 to rotate, Therefore, the two filter cartridge assemblies 540 corresponding to the two first smoke guide holes 630 can be replaced; the two filter cartridge assemblies 540 with excessive particulate matter adhering to the inside are rotated to the two sides of the heat-absorbing primary purification chamber 100 respectively; since the filtered smoke in the purified smoke exhaust chamber 300 is discharged through the smoke exhaust channel 310 and the smoke acts on the part of the air guide component 800 in the purified smoke exhaust chamber 300, the air guide component 800 is subjected to the effect of the smoke and starts to work, and the air guide component 800 guides the external airflow to the top of the upper annular disk 700 The purified smoke is discharged from the side of the bin 300, and the upper annular disc 700 guides the airflow to the inside of the filter cartridge assembly 540 on the side of the heat-absorbing primary purification bin 100. The airflow is introduced into the inside of the filter cartridge assembly 540 from the top, so the airflow can act in reverse on the particulate matter attached to the inside of the filter cartridge assembly 540, so that the particulate matter is discharged from the bottom port of the filter cartridge assembly 540, and the particulate impurities filtered inside the filter cartridge assembly 540 can be effectively cleaned to avoid blockage without stopping the filtering and purification of the smoke, thereby improving work efficiency.

[0030] In one embodiment, Figure 1-Figure 5 As shown, two opposite air inlet grooves 730 are provided on the upper annular disk 700 and the two air inlet grooves 730 are respectively located on the sides of the purified smoke exhaust bin 300, and the air inlet grooves 730 are also connected to the air guide component 800 and the air guide component 800 can guide the external airflow into the air inlet grooves 730; in this embodiment of the present invention, a plurality of filter cartridge assemblies 540 that do not correspond to the first smoke guide hole 630 are divided into two groups and the two groups of filter cartridge assemblies 540 correspond to the two air inlet grooves 730, respectively, the air guide component 800 starts to work and guides the external airflow into the air inlet grooves 730, and the airflow is respectively introduced into the corresponding filter cartridge assemblies 540 through the air inlet grooves 730 and takes away the particulate impurities inside the filter cartridge assemblies 540.

[0031] In one embodiment, Figure 1-Figure 5 As shown, the air guide component 800 includes a rotor assembly 810 and two groups of air injection assemblies 820 symmetrically arranged on the two side walls of the purified smoke discharge bin 300, the rotor assembly 810 is rotatably arranged inside the purified smoke discharge bin 300 and the two ends extend to the outer side of the purified smoke discharge bin 300, and the rotor assembly 810 can rotate when the smoke passes through; each group of air injection assemblies 820 has at least two air injection assemblies 820 and the air injection assembly 820 includes a cylinder part 821, a piston rod 822, and a piston rod 823. 22, an air outlet pipe 823 and an air inlet end 824, the air cylinder portion 821 is fixed on the outer wall of the purified smoke discharge chamber 300 and has a piston plate inside the air cylinder portion 821, one end of the piston rod 822 extends into the air cylinder portion 821 and is connected to the piston plate, and the other end of the piston rod 822 is connected to the end of the rotor assembly 810 extending to the outer wall of the purified smoke discharge chamber 300; when the rotor assembly 810 rotates, it acts on the end of the piston rod 822 and causes it to move back and forth laterally, and the air outlet pipe 82 3 and the air inlet end 824 are respectively arranged on the outer wall of one end of the air cylinder part 821, one end of the air outlet pipe 823 is connected to the top of the upper annular disk body 700 and is connected to the air inlet groove 730, and the air outlet pipe 823 and the air inlet end 824 are both provided with a one-way air valve; in the embodiment of the present invention, since the air outlet pipe 823 and the air inlet end 824 are both provided with a one-way air valve, the air outlet pipe 823 and the air inlet end 824 can only guide the airflow in one direction, and the rotor assembly 810 is subjected to the purified smoke discharge from the chamber 300. When the flowing flue gas is acted upon and rotates, the end of the rotor assembly 810 acts on the end of the piston rod 822 and causes the piston rod 822 to reciprocate. The piston rod 822 pushes the piston plate to move inside the cylinder part 821. The piston plate can change the gas at both ends inside the cylinder part 821, and through the air outlet pipe 823 and the air inlet end 824, the external airflow can be adsorbed into the cylinder part 821, and then guided to the inside of the air inlet groove 730 through the air outlet pipe 823, so as to realize the airflow to clean impurities.

[0032] In one embodiment, Figure 1-Figure 5As shown, the rotor assembly 810 includes a rotor shaft 811 and two turntable parts 813. The rotor shaft 811 is rotatably arranged inside the purified smoke exhaust bin 300 and its two ends extend to the outside of the purified smoke exhaust bin 300. The two turntable parts 813 are respectively fixed to the two ends of the rotor shaft 811. An eccentric column 814 is fixed to the end surface of each turntable part 813. A driven vertical frame 815 connected to the end of the piston rod 822 is also arranged on the front side of the end surface of the turntable part 813. The eccentric column 814 passes through the driven vertical frame 815. The rotor shaft 811 is provided with an air injection rotor 812 and the smoke exhaust bin 300 is provided with an air injection rotor 812. When passing through the gas injection rotor 812, it can drive the gas injection rotor 812 to rotate; in the embodiment of the present invention, when the flue gas passes through the gas injection rotor 812 and flows into the smoke exhaust channel 310, the flue gas acts on the gas injection rotor 812 and causes the gas injection rotor 812 and the rotor shaft 811 to rotate, and the rotating rotor shaft 811 drives the turntable part 813 to rotate, so that the eccentric column 814 rotates with the turntable part 813 and reciprocates the driven vertical frame 815, and the driven vertical frame 815 drives the piston rod 822 to move back and forth, so as to realize the introduction of external airflow into the air inlet groove 730 by utilizing the flow of flue gas, thereby realizing the airflow to clean impurities.

[0033] In one embodiment, Figure 1-Figure 5 As shown, the rotating switching part includes a switching shaft 550 and a switching motor 560. The switching shaft 550 is rotatably arranged at the bottom of the purified smoke exhaust bin 300 and the switching shaft 550 is fixedly connected to the inner ring outer wall of one of the annular rotating chucks 510 through the upper support arm 570. The switching motor 560 is arranged on the heat absorbing primary purification bin 100 and the output end of the switching motor 560 is connected to the end of the switching shaft 550. In the embodiment of the present invention, the switching motor 560 is a servo motor and its working state is controlled by a controller. The switching motor 560 works and drives the switching shaft 550 to rotate. The switching shaft 550 drives the annular rotating chuck 510 to rotate through the upper support arm 570, so that the multiple filter cartridge assemblies 540 rotate between the upper annular disk body 700 and the lower annular disk body 600.

[0034] In one embodiment, Figure 1-Figure 5As shown, the end surface of the lower annular disk 600 is provided with two opposite exhaust grooves 620 and two corresponding lower smoke outlet grooves 610, the upper annular disk 700 is provided with two upper smoke inlet grooves 710 corresponding to the two lower smoke outlet grooves 610, the two first smoke guide holes 630 are respectively connected to the two lower smoke outlet grooves 610, each exhaust groove 620 is provided with an exhaust hole 640, and the bottom wall of the lower annular disk 600 is provided with a plurality of air guide channels 650 corresponding to the plurality of exhaust holes 640. When one filter cartridge assembly 540 corresponds to the two first smoke guide holes 630, the remaining filter cartridge assemblies 540 respectively correspond to the multiple air outlet holes 640; in the embodiment of the present invention, a cloth bag for collecting particulate impurities can be put on the bottom of the multiple air guide channels 650. After the external airflow is guided to the inside of the air inlet groove 730 under the action of the air injection assembly 820, the airflow flows to the multiple filter cartridge assemblies 540 respectively, and the airflow carries away the particulate matter inside the filter cartridge assembly 540 and falls into the air guide channel 650 through the air guide channel 650, so they can be collected uniformly.

[0035] In one embodiment, Figure 1-Figure 6 As shown, the filter cartridge assembly 540 includes a smoke guide tube portion 541 and a filter portion 542, the bottom of the smoke guide tube portion 541 is installed at the corresponding air permeable connection hole 520, and the filter portion 542 is installed inside the smoke guide tube portion 541 and the filter portion 542 is a cone structure; in the embodiment of the present invention, when the smoke enters the smoke guide tube portion 541 and passes through the filter portion 542, the filter portion 542 can intercept impurities in the smoke, and some particulate impurities are attached to the inner wall of the filter portion 542. Since the filter portion 542 is a cone structure and the inner surface can increase the attachment surface, the frequency of cleaning impurities is reduced, and when the airflow is guided from the air inlet groove 730 to the smoke guide tube portion 541, it can act in the opposite direction to the filter portion 542 and carry away the impurity particles on the inner wall of the filter portion 542 downward.

[0036] In one embodiment, Figure 1-Figure 6As shown, a fixing frame 521 is fixed inside the air-permeable connection hole 520, and a rotating ring 530 rotatably connected to the end of the smoke guide tube part 541 is arranged outside the air-permeable connection hole 520. The filter cartridge assembly 540 also includes a scraper rod shaft 544 and a plurality of scraper rod parts 545. The scraper rod shaft 544 is rotatably arranged on the top of the filter part 542, and the top of the scraper rod shaft 544 is fixedly connected to the fixing frame 521. The lower end of the scraper rod shaft 544 extends to the inside of the filter part 542. The plurality of scraper rod parts 545 are attached to the inner wall of the filter part 542, and the top of the scraper rod part 545 is fixedly connected to the bottom end of the scraper rod shaft 544. An external gear 543 is arranged on the outer wall of the smoke guide tube part 541. The filter cartridge assembly 540 is arranged outside the filtering and purification mechanism 500. 40 has an inner gear ring portion 410 with its rotation center as the center line, and both ends of the inner gear ring portion 410 are respectively connected to two support column members 400. When the filter cartridge assembly 540 is located outside the purified smoke exhaust bin 300, the outer gear 543 is in meshing with the inner gear ring portion 410. In the embodiment of the present invention, when the filter cartridge assembly 540 rotates toward the side of the heat-absorbing primary purification bin 100, since the outer gear 543 is in meshing with the inner gear ring portion 410, the smoke guide tube portion 541 rotating around the center of the lower annular disk body 600 can rotate on its own. Therefore, the filter portion 542 rotates relative to the scraper rod shaft 544 and the scraper rod portion 545, and the scraper rod portion 545 can scrape impurities from the inner wall of the filter portion 542, thereby achieving the separation of impurities from the inner wall of the filter portion 542.

[0037] In one embodiment, Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the heat exchange assembly 900 includes a heat exchange chamber 910 and a heat exchange curve tube 930. The heat exchange chamber 910 is fixed inside the heat absorption primary purification chamber 100 and the lower end of the heat exchange chamber 910 is provided with a plurality of down-injection holes 920 extending into the flue gas adsorption liquid. The end of the flue gas duct 200 extending into the heat absorption primary purification chamber 100 is connected to the inside of the heat exchange chamber 910. The heat exchange curve tube 930 is arranged inside the heat exchange chamber 910 and both ends of the heat exchange curve tube 930 are provided with A heat exchange connecting pipe 940 is provided, and the heat exchange connecting pipe 940 passes through the end wall of the heat exchange bin body 910 and the side wall of the heat absorption primary purification bin 100 and is connected to an external conveying device; in the embodiment of the present invention, the flue gas duct 200 introduces the flue gas into the interior of the heat exchange bin body 910 and has a down-injection hole 920 to introduce the flue gas into the flue gas adsorption liquid. When the flue gas flows inside the heat exchange bin body 910, the flue gas contacts the outer wall of the heat exchange curve tube body 930 and completes heat exchange with the heat absorption liquid flowing inside the heat exchange curve tube body 930.

[0038] In one embodiment, Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the heat exchange connecting pipe 940 is provided with a heat exchange rotor 950 located inside the heat exchange bin 910 and a stirring blade 960 located inside the heat absorption primary purification bin 100; the heat exchange rotor 950 corresponds to the end of the flue gas duct 200 extending into the heat exchange bin 910; in the embodiment of the present invention, the flue gas introduced into the heat exchange bin 910 through the flue gas duct 200 will act on the heat exchange rotor 950, and cause the heat exchange curve tube body 930 and the heat exchange connecting pipe 940 to rotate, and the rotating heat exchange curve tube body 930 can disturb the flue gas inside the heat exchange bin 910, thereby improving the heat exchange efficiency between the flue gas and the heat absorption liquid inside the heat exchange curve tube body 930, and the heat exchange connecting pipe 940 drives the stirring blade 960 to rotate and the stirring blade 960 stirs the flue gas adsorption liquid inside the heat absorption primary purification bin 100, so that the flue gas adsorption liquid is fully in contact with the impurities in the flue gas, thereby improving the impurity purification effect.

[0039] The above embodiment provides a smelting flue gas purification device, wherein the smelting flue gas is introduced into the heat absorbing primary purification chamber 100 through the exhaust channel of the smelting equipment and the flue gas pipeline 200, wherein the heat exchange component 900 contacts the flue gas and exchanges heat, takes away the heat of the flue gas and stores it, and then the flue gas enters the flue gas adsorption liquid, the flue gas adsorption liquid is water or other liquids that adsorb particles, some particles and substances in the flue gas are adsorbed by the flue gas adsorption liquid, and some of the particulate matter emerges from the flue gas adsorption liquid with vaporized liquid, increasing the flue gas particles. The smoke is introduced into the interior of two filter cartridge assemblies 540 aligned with and connected to the first smoke guide hole 630 through the heat absorption primary purification chamber 100, and the filter cartridge assembly 540 filters the particulate matter in the smoke again; finally, the smoke enters the interior of the purified smoke exhaust chamber 300 through the second smoke guide hole 720 and is discharged to the outside through the smoke exhaust channel 310; when too much particulate matter adheres to the interior of the filter cartridge assembly 540 used for filtering and purifying smoke, the rotary switching part starts to work and drives the two annular rotating chucks 510 to rotate, and the annular rotating chuck 510 drives multiple filter cartridges The assembly 540 rotates, so the two filter cartridge assemblies 540 corresponding to the two first smoke guide holes 630 can be replaced; the two filter cartridge assemblies 540 with excessive particulate matter adhering to the inside rotate to the two sides of the heat-absorbing primary purification chamber 100 respectively; since the filtered smoke in the purified smoke exhaust chamber 300 is discharged through the smoke exhaust channel 310 and the smoke acts on the part of the air guide component 800 in the purified smoke exhaust chamber 300, the air guide component 800 is subjected to the action of the smoke and starts to work, and the air guide component 800 guides the external airflow to the upper annular disk 70 The top of the filter cartridge 540 is located at the side of the purified smoke exhaust bin 300, and the upper annular disc 700 guides the airflow to the inside of the filter cartridge assembly 540 located at the side of the heat-absorbing primary purification bin 100. The airflow is introduced into the inside of the filter cartridge assembly 540 from the top, so the airflow can act in reverse on the particulate matter attached to the inside of the filter cartridge assembly 540, so that the particulate matter is discharged from the bottom port of the filter cartridge assembly 540, thereby effectively cleaning the particulate impurities filtered inside the filter cartridge assembly 540, avoiding blockage without stopping the filtering and purification of the smoke, and improving work efficiency.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

Claims

1. A smelting flue gas purification device, comprising a heat absorbing primary purification chamber (100), a flue gas duct (200), a purified flue gas discharge chamber (300) and a filtering and purification mechanism (500), wherein the heat absorbing primary purification chamber (100) has a flue gas adsorption liquid inside and is equipped with a heat exchange component (900), one end of the flue gas duct (200) is connected to a flue gas exhaust channel of a smelting device and the other end is connected to an outer wall of the heat absorbing primary purification chamber (100), characterized in that: The upper surface of the heat absorbing primary purification chamber (100) is provided with a lower annular disc (600), and the lower annular disc (600) is provided with two first smoke guide holes (630) which are connected to the interior of the heat absorbing primary purification chamber (100); The purified smoke exhaust bin (300) is located directly above the heat absorbing primary purification bin (100), and the purified smoke exhaust bin (300) and the heat absorbing primary purification bin (100) are fixedly connected via a plurality of support pillars (400); An upper annular disc (700) is provided at the bottom of the purified smoke exhaust bin (300), two second smoke guide holes (720) corresponding to the two first smoke guide holes (630) and connected to the interior of the purified smoke exhaust bin (300) are provided on the upper annular disc (700), and a smoke exhaust passage (310) is provided at the top of the purified smoke exhaust bin (300); The filtering and purifying mechanism (500) is rotatably disposed between the lower annular disc body (600) and the upper annular disc body (700), and the filtering and purifying mechanism (500) comprises a rotation switching portion, two annular rotating chucks (510), and a plurality of filter cartridge assemblies (540) for filtering and purifying the passing smoke; Two annular rotating chucks (510) are respectively rotatably sleeved on the lower annular disc body (600) and the upper annular disc body (700), and a plurality of circumferentially distributed air-permeable connection holes (520) are provided on the annular rotating chucks (510); a plurality of filter cartridge assemblies (540) are respectively arranged between the two annular rotating chucks (510), and the filter cartridge assemblies (540) are correspondingly installed between two relatively aligned air-permeable connection holes (520); any two filter cartridge assemblies (540) whose centers are on the same diameter line can be rotated to positions corresponding to the two first smoke guide holes (630); The rotation switching part is arranged on the upper end surface of the heat absorbing primary purification chamber (100), and the rotation switching part is connected to the outer side wall of the inner ring of one of the annular rotating chucks (510); The purified smoke exhaust bin (300) is also provided with an air guide component (800), and one end of the air guide component (800) extends into the interior of the purified smoke exhaust bin (300), and the air guide component (800) is also connected to a portion of the top of the upper annular disk (700) located on the side of the purified smoke exhaust bin (300); The end of the air guide component (800) extending into the purified smoke exhaust bin (300) is located at the connection between the smoke exhaust channel (310) and the purified smoke exhaust bin (300), and the airflow entering the smoke exhaust channel (310) can act on the air guide component (800).

2. The smelting fume purification device according to claim 1 is characterized in that: The upper annular disc (700) is provided with two opposite air inlet grooves (730), and the two air inlet grooves (730) are respectively located on the sides of the purified smoke discharge bin (300), and the air inlet grooves (730) are also connected to the air guide component (800), and the air guide component (800) can guide external airflow into the air inlet groove (730).

3. The smelting fume purification device according to claim 2 is characterized in that: The air guide component (800) comprises a rotor assembly (810) and two groups of air injection assemblies (820) symmetrically arranged on two side walls of the purified smoke discharge bin (300); The rotor assembly (810) is rotatably arranged inside the purified smoke exhaust bin (300) and has two ends extending to the outer side of the purified smoke exhaust bin (300). The rotor assembly (810) is capable of self-rotation when smoke passes through. Each group of gas injection assemblies (820) comprises at least two gas injection assemblies (820), and the gas injection assemblies (820) comprise a gas cylinder portion (821), a piston rod (822), an air outlet pipe (823), and an air inlet end (824); the gas cylinder portion (821) is fixed to the outer wall of the purified smoke exhaust bin (300), and the gas cylinder portion (821) has a piston plate inside; one end of the piston rod (822) extends into the gas cylinder portion (821) and is connected to the piston plate; the other end of the piston rod (822) is connected to the end of the rotor assembly (810) extending to the outer wall of the purified smoke exhaust bin (300); When the rotor assembly (810) rotates, it acts on the end of the piston rod (822) and causes it to move back and forth laterally. The air outlet pipe (823) and the air inlet end (824) are respectively arranged on the outer wall of one end of the cylinder portion (821). One end of the air outlet pipe (823) is connected to the top of the upper annular disk (700) and is connected to the air inlet groove (730). Both the air outlet pipe (823) and the air inlet end (824) are provided with a one-way air valve.

4. The smelting fume purification device according to claim 3 is characterized in that: The rotor assembly (810) comprises a rotor shaft (811) and two rotating disk parts (813); The rotor shaft (811) is rotatably disposed inside the purified smoke exhaust bin (300) and has two ends extending to the outside of the purified smoke exhaust bin (300); two turntable portions (813) are respectively fixed to two ends of the rotor shaft (811); and an eccentric column (814) is fixed to the end surface of each turntable portion (813); A driven vertical frame (815) connected to the end of the piston rod (822) is also provided on the front side of the turntable portion (813); the eccentric column (814) passes through the driven vertical frame (815); an air injection rotor (812) is provided on the rotor shaft (811); and when flue gas passes through the air injection rotor (812), the air injection rotor (812) can be driven to rotate.

5. The smelting fume purification device according to claim 1, characterized in that: The rotation switching portion comprises a switching shaft (550) and a switching motor (560); The switching shaft (550) is rotatably arranged at the bottom of the purified smoke exhaust bin (300), and the switching shaft (550) is fixedly connected to the inner ring outer wall of one of the annular rotating chucks (510) via an upper support arm (570); the switching motor (560) is arranged on the heat absorbing primary purification bin (100), and the output end of the switching motor (560) is connected to the end of the switching shaft (550).

6. The smelting fume purification device according to claim 1, characterized in that: The end surface of the lower annular disc (600) is provided with two opposite exhaust grooves (620) and two corresponding lower smoke outlet grooves (610), and the upper annular disc (700) is provided with two upper smoke inlet grooves (710) respectively corresponding to the two lower smoke outlet grooves (610); The two first smoke guide holes (630) are respectively connected to the two lower smoke outlet grooves (610); each exhaust groove (620) is provided with an air outlet hole (640) inside; and a plurality of air guide channels (650) respectively corresponding to the plurality of air outlet holes (640) are provided on the bottom wall of the lower annular disk (600); When two of the filter cartridge assemblies (540) correspond to the two first smoke guide holes (630), the remaining filter cartridge assemblies (540) correspond to the multiple air outlet holes (640) respectively.

7. The smelting fume purification device according to claim 6, characterized in that: The filter cartridge assembly (540) comprises a smoke guide portion (541) and a filter portion (542); The bottom of the smoke guide tube portion (541) is installed at the corresponding air-permeable connection hole (520), and the filter portion (542) is installed inside the smoke guide tube portion (541), and the filter portion (542) is in a cone structure.

8. The smelting fume purification device according to claim 7, characterized in that: A fixing frame (521) is fixed inside the air-permeable connection hole (520), and a rotating ring (530) rotatably connected to the end of the smoke guide tube portion (541) is provided outside the air-permeable connection hole (520); The filter cartridge assembly (540) further comprises a scraper rod shaft (544) and a plurality of scraper rod portions (545); the scraper rod shaft (544) is rotatably disposed on the top of the filter portion (542), and the top of the scraper rod shaft (544) is fixedly connected to the fixing frame (521); the lower end of the scraper rod shaft (544) extends into the interior of the filter portion (542); the plurality of scraper rod portions (545) are attached to the inner wall of the filter portion (542), and the top of the scraper rod portion (545) is fixedly connected to the bottom end of the scraper rod shaft (544); and an external gear (543) is disposed on the outer wall of the smoke guide tube portion (541); An inner gear ring portion (410) is arranged outside the filtering and purifying mechanism (500) with the rotation center of the filter cartridge assembly (540) as the center line, and two ends of the inner gear ring portion (410) are respectively connected to two support column members (400); when the filter cartridge assembly (540) is located outside the purified smoke discharge bin (300), the outer gear (543) and the inner gear ring portion (410) are in a meshing state.

9. The smelting fume purification device according to any one of claims 1 to 8, characterized in that: The heat exchange component (900) comprises a heat exchange chamber (910) and a heat exchange curve tube body (930); The heat exchange bin (910) is fixed inside the heat absorption primary purification bin (100), and a plurality of down-injection holes (920) for inserting the flue gas adsorption liquid are provided at the lower end of the heat exchange bin (910), and the end of the flue gas duct (200) extending into the heat absorption primary purification bin (100) is connected to the interior of the heat exchange bin (910); The heat exchange curve tube body (930) is arranged inside the heat exchange bin body (910), and heat exchange connecting tubes (940) are arranged at both ends of the heat exchange curve tube body (930). The heat exchange connecting tubes (940) pass through the end wall of the heat exchange bin body (910) and the side wall of the heat absorption primary purification bin (100) and are connected to external conveying equipment.

10. The smelting fume purification device according to claim 9, characterized in that: The heat exchange connecting pipe (940) is provided with a heat exchange rotor (950) located inside the heat exchange chamber (910) and a stirring blade (960) located inside the heat absorption primary purification chamber (100); The heat exchange rotor (950) corresponds to the end of the flue gas duct (200) extending into the heat exchange chamber (910).

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