Nitrogen oxide yellow smoke treatment device

Abstract

The utility model relates to the technical field of waste gas purification treatment, in particular to a nitrogen oxide yellow smoke treatment device, which comprises a tower body, an annular partition cylinder, an annular cover plate, a filtering turbulent flow component, a spraying circulating component and a packing layer, a gas inlet is arranged at the bottom of the front side of the tower body, the annular partition cylinder is arranged in the middle of the inner bottom wall of the tower body, and an inner cavity of the annular partition cylinder is communicated with the gas inlet. The annular cover plate is installed at the top end of the annular partition cylinder, the outer ring of the annular cover plate is connected with the inner side wall of the tower body, the inner side wall of the tower body, the annular partition cylinder and the annular cover plate form an annular cavity, the annular cavity is communicated with a through hole in the annular cover plate, and the bottom end of the filtering turbulent flow assembly is connected with the inner ring of the annular cover plate and communicated with an inner cavity of the annular partition cylinder. The spraying circulating assembly is arranged above the filtering turbulent flow assembly and is communicated with the annular cavity, and the packing layer is arranged above the spraying circulating assembly; according to the utility model, large-particle impurities contained in the waste gas are effectively filtered, and the contact time and the contact area of the waste gas and the purification liquid are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification and treatment, in particular to a nitrogen oxide yellow smoke treatment device. Background Art

[0002] Nitrogen oxide waste gas is a highly toxic yellow smoke. If it is discharged into the atmosphere without purification, it will form brown-yellow smoke, commonly known as "yellow dragon", which not only harms the health of operators, but also pollutes the atmospheric environment. Therefore, before the nitrogen oxide waste gas is discharged, the nitrogen oxide in the waste gas needs to be removed.

[0003] At present, when the existing waste gas purification equipment treats nitrogen oxide yellow smoke, it does not effectively filter the large particle impurities contained in the waste gas, resulting in poor waste gas treatment effect. In addition, the waste gas stays in the waste gas purification equipment for a short time, resulting in a short contact time with the purification liquid and a limited contact area with the purification liquid, which also affects the waste gas treatment effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies in the prior art and to provide a nitrogen oxide yellow smoke treatment device which has a simple structural design, can effectively filter large particle impurities contained in the exhaust gas, and can increase the contact time and contact area between the exhaust gas and the purification liquid.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a nitrogen oxide yellow smoke treatment device, including a tower body, wherein the front bottom of the tower body is provided with an air inlet, and the middle part of the top is provided with an air outlet, and also includes an annular partition, an annular cover plate, a filter spoiler assembly, a spray circulation assembly and a packing layer arranged inside the tower body, the annular partition is centrally arranged on the inner bottom wall of the tower body, and its inner cavity is connected with the air inlet, the annular cover plate is installed on the top of the annular partition, and its outer ring is connected with the inner wall of the tower body, the inner wall of the tower body, the outer wall of the annular partition and the annular cover plate constitute an annular cavity, the annular cavity is connected with the through hole on the annular cover plate, the bottom end of the filter spoiler assembly is connected with the inner circle of the annular cover plate, and is connected with the inner cavity of the annular partition, the spray circulation assembly is arranged above the filter spoiler assembly and is connected with the annular cavity, and the packing layer is arranged above the spray circulation assembly.

[0006] Further, the filter spoiler assembly includes a filter cartridge, a sleeve, a screw, a threaded sleeve, a cleaning group, a spoiler and a driving group. The filter cartridge is a hollow cylindrical structure with an opening at the bottom end, and its opening is connected to the inner ring of the annular cover plate. The side wall of the filter cartridge is provided with a plurality of filter holes. The sleeve is centrally arranged in the filter cartridge, and its top end is connected to the inner top wall of the filter cartridge. The screw is rotatably installed in the sleeve, and its top end passes through the filter cartridge and is connected to the spoiler. There are several spoilers and are located above the filter cartridge. The threaded sleeve is arranged in the sleeve and threadedly sleeved on the screw. A guide hole is axially provided on the sleeve. There are several guide holes arranged circumferentially along the sleeve. One end of the cleaning group is connected to the threaded sleeve, and the other end passes through the guide hole and contacts the inner side wall of the filter cartridge. The driving group is arranged on the filter cartridge to drive the screw to rotate.

[0007] Furthermore, the cleaning group includes a connecting rod and a scraper head, one end of the connecting rod passes through the guide hole and is connected to the threaded sleeve, and the other end is connected to the scraper head, the connecting rod and the guide hole are slidably matched, and the scraper head contacts the inner wall of the filter cartridge.

[0008] Furthermore, the drive group includes a protective cover, a slave bevel gear, a main bevel gear, a transmission shaft and a servo motor. The protective cover is installed in the middle of the top end of the filter cylinder and is rotatably sleeved on the screw rod. The slave bevel gear and the main bevel gear are both arranged in the protective cover. The slave bevel gear is sleeved on the screw rod and meshes with the main bevel gear. One end of the transmission shaft passes through the side wall of the protective cover and is connected to the main bevel gear, and the other end passes through the side wall of the tower body and is connected to the servo motor. The servo motor is installed on the outer wall of the tower body.

[0009] Furthermore, the filtering spoiler assembly also includes a dust collecting bin, the bottom end of the filter cylinder is connected to the inner circle of the annular cover plate through the dust collecting bin, the dust collecting bin is an annular hollow structure, the top of the inner circle of the dust collecting bin is provided with an ash inlet, and the outer circle is provided with an ash outlet, the ash inlet is annular and corresponds to the inner side wall of the filter cylinder, and there are several ash outlets, which are respectively connected to the vacuum cleaner through channels in the annular cover plate.

[0010] Furthermore, the side wall of the ash inlet away from the annular cover plate is inclined toward the annular cover plate, and a guide plate is provided on the side wall of the ash inlet close to the annular cover plate, and the guide plate extends toward the side wall of the ash inlet away from the annular cover plate.

[0011] Furthermore, the spray circulation assembly includes an atomizing nozzle, a spray pipe and a circulation pump. The atomizing nozzles are multiple and evenly distributed inside the tower body. The circulation pump is arranged outside the tower body and is connected to the annular cavity and the atomizing nozzle through the spray pipe respectively.

[0012] Furthermore, it also includes a demisting layer arranged in the tower body, and the demisting layer is arranged above the packing layer.

[0013] Furthermore, a fan is provided in the air outlet.

[0014] The beneficial effects of the utility model are:

[0015] (1) The utility model effectively filters large particles of impurities contained in the exhaust gas in the tower body by setting a filtering and turbulent flow component, and at the same time disturbs the filtered exhaust gas to form turbulence, prolongs the residence time of the exhaust gas in the tower body, and makes the exhaust gas fully contact with the purification liquid, thereby improving the purification effect of the exhaust gas;

[0016] (2) The utility model removes large particles of impurities attached to the filter holes on the filter cartridge by setting a cleaning group, thereby ensuring the filtering effect of the filter cartridge and further ensuring effective filtering of the exhaust gas;

[0017] (3) The utility model collects the large particles of impurities removed from the filter cartridge by setting up a dust collecting bin, thereby preventing the large particles of impurities from entering the subsequent exhaust gas again, thereby ensuring the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Figure 1 It is an internal diagram of the utility model;

[0020] Figure 2 It is a front view of the utility model;

[0021] Figure 3 yes Figure 1 Enlarged view of part A in the middle;

[0022] Figure 4 yes Figure 3 Enlarged view of middle part B;

[0023] Figure 5 It is a top view of the annular cover plate in the utility model.

[0024] In the figure: 100, tower body; 110, air inlet; 120, air outlet; 200, annular spacer; 300, annular cover plate; 310, through hole; 320, channel; 400, filter spoiler assembly; 410, filter cartridge; 411, filter hole; 420, sleeve; 421, guide hole; 430, screw rod; 440, threaded sleeve; 450, cleaning group; 451, connecting rod; 452, scraper head; 460, spoiler; 470 , drive group; 471, protective cover; 472, slave bevel gear; 473, main bevel gear; 474, transmission shaft; 475, servo motor; 480, dust collecting bin; 481, ash inlet; 482, ash outlet; 483, guide plate; 500, spray circulation assembly; 510, atomizing nozzle; 520, spray pipe; 530, circulation pump; 600, packing layer; 700, annular cavity; 800, demisting layer; 900, fan. DETAILED DESCRIPTION

[0025] The present invention is now further described in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0026] like Figure 1 , Figure 2 and Figure 5As shown, a nitrogen oxide yellow smoke treatment device includes a tower body 100, an air inlet 110 is provided at the front bottom of the tower body 100, and an air outlet 120 is provided at the middle of the top thereof, and also includes an annular partition 200, an annular cover plate 300, a filtering spoiler assembly 400, a spray circulation assembly 500 and a packing layer 600 arranged inside the tower body 100, the annular partition 200 is centrally arranged on the inner bottom wall of the tower body 100, and its inner cavity is communicated with the air inlet 110, the annular cover plate 300 is installed at the top of the annular partition 200, and its outer The ring is connected to the inner wall of the tower body 100, the inner wall of the tower body 100, the annular spacer 200 and the annular cover plate 300 form an annular cavity 700, the annular cavity 700 is connected to the through hole 310 on the annular cover plate 300, the bottom end of the filtering spoiler assembly 400 is connected to the inner ring of the annular cover plate 300, and is connected to the inner cavity of the annular spacer 200, the spray circulation assembly 500 is arranged above the filtering spoiler assembly 400, and is connected to the annular cavity 700, and the packing layer 600 is arranged above the spray circulation assembly 500. Through the arrangement of the filtering spoiler assembly 400, the large particle impurities contained in the exhaust gas in the tower body 100 are effectively filtered, and the filtered exhaust gas is disturbed to form turbulence, prolonging the residence time of the exhaust gas in the tower body 100, and making the exhaust gas fully contact with the purification liquid, thereby improving the purification treatment effect of the exhaust gas. Specifically, the tower body 100 is a cylindrical structure; the air inlet 110 is connected to the inner cavity of the annular partition 200 through an air inlet pipe; the annular cover plate 300 is conical; there are a plurality of through holes 310, which are evenly distributed along the circumferential direction on the edge of the annular cover plate 300; and a fan 900 is also provided in the air outlet 120.

[0027] like Figure 1 , Figure 3 and Figure 4As shown, the filter spoiler assembly 400 includes a filter cartridge 410, a sleeve 420, a screw 430, a threaded sleeve 440, a cleaning group 450, a spoiler 460 and a drive group 470. The filter cartridge 410 is a hollow cylindrical structure with an opening at the bottom, and its opening is connected to the inner ring of the annular cover plate 300. The side wall of the filter cartridge 410 is provided with a plurality of filter holes 411. The sleeve 420 is centrally arranged in the filter cartridge 410, and its top end is connected to the inner top wall of the filter cartridge 410. The screw 430 is rotatably installed in the sleeve 420, and its top end passes through the filter cartridge 410 is connected with spoiler 460, spoiler 460 is several and located above filter cartridge 410, threaded sleeve 440 is arranged in sleeve 420 and threadedly sleeved on screw rod 430, sleeve 420 is provided with guide hole 421 along the axial direction, guide hole 421 is several and arranged along the circumference of sleeve 420, one end of cleaning group 450 is connected with threaded sleeve 440, and the other end thereof passes through guide hole 421 and contacts with the inner side wall of filter cartridge 410, and driving group 470 is arranged on filter cartridge 410 to drive screw rod 430 to rotate. Through the setting of cleaning group 450, large particles of impurities attached to filter hole 411 on filter cartridge 410 are removed to ensure the filtering effect of filter cartridge 410, thereby further ensuring the effective filtering of exhaust gas. During filtering, the driving group 470 drives the screw 430 to rotate. The rotation of the screw 430 drives the threaded sleeve 440 to move linearly along the axial direction of the screw 430, and then synchronously drives the cleaning group 450 to move up and down to clean the inner wall of the filter cartridge 410. The rotation of the screw 430 also drives the spoiler 460 to rotate, disturbing the filtered exhaust gas to form turbulence. The driving of the driving group 470 synchronously realizes the two processes of cleaning and turbulence, thereby achieving the purpose of energy saving. Specifically, the cleaning group 450 includes a connecting rod 451 and a scraper head 452. One end of the connecting rod 451 passes through the guide hole 421 and is connected to the threaded sleeve 440, and the other end thereof is connected to the scraper head 452. The connecting rod 451 slides with the guide hole 421, and the scraper head 452 contacts the inner wall of the filter cartridge 410.

[0028] like Figure 3 and Figure 4As shown, the drive group 470 includes a protective cover 471, a secondary bevel gear 472, a primary bevel gear 473, a transmission shaft 474 and a servo motor 475. The protective cover 471 is installed at the middle of the top of the filter cartridge 410 and is rotatably sleeved on the screw rod 430. The secondary bevel gear 472 and the primary bevel gear 473 are both arranged in the protective cover 471. The secondary bevel gear 472 is sleeved on the screw rod 430 and meshes with the primary bevel gear 473. One end of the transmission shaft 474 passes through the side wall of the protective cover 471 and is connected to the primary bevel gear 473, and the other end passes through the side wall of the tower body 100 and is connected to the servo motor 475. The servo motor 475 is installed on the outer side wall of the tower body 100. The setting of the protective cover 471 plays a protective role on the secondary bevel gear 472 and the primary bevel gear 473. During driving, the servo motor 475 drives the main bevel gear 473 to rotate via the transmission shaft 474 , and the rotation of the main bevel gear 473 drives the screw rod 430 to rotate via the slave bevel gear 472 .

[0029] like Figure 3 and Figure 5 As shown, the filter spoiler assembly 400 also includes a dust collecting bin 480, the bottom end of the filter cartridge 410 is connected to the inner circle of the annular cover plate 300 through the dust collecting bin 480, the dust collecting bin 480 is an annular hollow structure, the top of the inner circle of the dust collecting bin 480 is provided with an ash inlet 481, and the outer circle thereof is provided with an ash outlet 482, the ash inlet 481 is annular and corresponds to the inner side wall of the filter cartridge 410, and the ash outlet 482 is a plurality of ash outlets 482, which are respectively connected to a dust collector (not shown) through the channel 320 in the annular cover plate 300. Through the setting of the dust collecting bin 480, the large particles of impurities removed from the filter cartridge 410 are collected to prevent the large particles of impurities from entering the subsequent exhaust gas again, thereby ensuring the filtering efficiency.

[0030] like Figure 3 As shown, the side wall of the ash inlet 481 away from the annular cover plate 300 is inclined toward the annular cover plate 300 to guide the swept large impurities to enter the dust collecting bin 480. A guide plate 483 is provided on the side wall of the ash inlet 481 close to the annular cover plate 300. The guide plate 483 extends toward the side wall of the ash inlet 481 away from the annular cover plate 300. The setting of the guide plate 483, on the one hand, guides the swept large impurities to enter the dust collecting bin 480, and on the other hand, blocks the large impurities in the dust collecting bin 480 to prevent them from escaping from the ash inlet 481 with the exhaust gas. Specifically, the guide plate 483 is perpendicular to the side wall of the ash inlet 481 away from the annular cover plate 300.

[0031] like Figure 1As shown, the spray circulation assembly 500 includes a spray nozzle 510, a spray pipe 520 and a circulation pump 530. There are a plurality of spray nozzles 510, which are evenly distributed inside the tower body 100. The circulation pump 530 is arranged outside the tower body 100 and is connected to the annular cavity 700 and the spray nozzle 510 through the spray pipe 520. The arrangement of the spray circulation assembly 500 realizes the recycling of the purified liquid. The purified liquid sprayed from the spray nozzle 510 mixes with the exhaust gas and falls on the annular cover plate 300, then rolls down and accumulates on the edge of the annular cover plate 300, and finally falls from the through hole 310 into the annular cavity 700.

[0032] like Figure 1 As shown, the nitrogen oxide yellow smoke treatment device further includes a demisting layer 800 disposed in the tower body 100, and the demisting layer 800 is disposed above the packing layer 600. Through the arrangement of the demisting layer 800, water vapor in the exhaust gas is absorbed.

[0033] During the exhaust gas purification process, the exhaust gas enters the inner cavity of the annular partition 200 from the air inlet 110, and then flows upward to be filtered through the filter tube 410. During this process, the servo motor 475 drives the screw 430 to rotate slowly, and simultaneously realizes the cleaning and turbulence processes. The filtered exhaust gas flows upward and mixes with the purified liquid sprayed from the atomizing nozzle 510 to achieve the first purification. After the first purification, the exhaust gas continues to flow upward and passes through the packing layer 600 for the second purification. The exhaust gas after the two purifications passes through the demisting layer 800 to eliminate water vapor, and is finally discharged from the exhaust port 120 under the guidance of the fan 900.

[0034] The above-mentioned implementation mode is only for illustrating the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A nitrogen oxide yellow smoke treatment device, comprising a tower body (100), wherein the front bottom of the tower body (100) is provided with an air inlet (110), and the middle of the top is provided with an air outlet (120), characterized in that: The tower body (100) further comprises an annular spacer (200), an annular cover plate (300), a filtering spoiler assembly (400), a spray circulation assembly (500) and a packing layer (600), wherein the annular spacer (200) is centrally arranged on the inner bottom wall of the tower body (100), and its inner cavity is communicated with the air inlet (110); the annular cover plate (300) is installed on the top of the annular spacer (200), and its outer ring is connected to the inner side wall of the tower body (100); the inner side wall of the tower body (100) and the outer ring of the annular spacer (200) are connected to the inner side wall of the tower body (100); The wall and the bottom wall of the annular cover plate (300) form an annular cavity (700), the annular cavity (700) is connected to the through hole (310) on the annular cover plate (300), the bottom end of the filtering spoiler assembly (400) is connected to the inner ring of the annular cover plate (300), and is connected to the inner cavity of the annular spacer (200), the spray circulation assembly (500) is arranged above the filtering spoiler assembly (400) and is connected to the annular cavity (700), and the packing layer (600) is arranged above the spray circulation assembly (500).

2. The nitrogen oxide yellow smoke treatment device according to claim 1, characterized in that: The filter spoiler assembly (400) comprises a filter cartridge (410), a sleeve (420), a screw (430), a threaded sleeve (440), a cleaning group (450), a spoiler (460) and a driving group (470); the filter cartridge (410) is a hollow cylindrical structure with an opening at the bottom, and the opening is connected to the inner ring of the annular cover plate (300); a plurality of filter holes (411) are provided on the side wall of the filter cartridge (410); the sleeve (420) is centrally arranged in the filter cartridge (410), and the top end of the screw (430) is connected to the inner top wall of the filter cartridge (410); the screw (430) is rotatably installed in the sleeve (420), and the top end of the screw passes through the filter cartridge (411); 0) is connected to a spoiler (460), there are a plurality of spoilers (460) and are located above the filter cartridge (410), the threaded sleeve (440) is arranged in the sleeve (420) and is threadedly sleeved on the screw rod (430), the sleeve (420) is provided with a guide hole (421) along the axial direction, there are a plurality of guide holes (421) and are arranged along the circumference of the sleeve (420), one end of the cleaning group (450) is connected to the threaded sleeve (440), and the other end thereof passes through the guide hole (421) and contacts the inner wall of the filter cartridge (410), and the driving group (470) is arranged on the filter cartridge (410) to drive the screw rod (430) to rotate.

3. The nitrogen oxide yellow smoke treatment device according to claim 2, characterized in that: The cleaning group (450) comprises a connecting rod (451) and a scraper head (452); one end of the connecting rod (451) passes through the guide hole (421) and is connected to the threaded sleeve (440), and the other end is connected to the scraper head (452); the connecting rod (451) and the guide hole (421) are slidably matched, and the scraper head (452) contacts the inner wall of the filter cartridge (410).

4. The nitrogen oxide yellow smoke treatment device according to claim 2, characterized in that: The driving group (470) comprises a protective cover (471), a secondary bevel gear (472), a primary bevel gear (473), a transmission shaft (474) and a servo motor (475). The protective cover (471) is installed at the middle of the top end of the filter cartridge (410) and is rotatably sleeved on the screw rod (430). The secondary bevel gear (472) and the primary bevel gear (473) are both arranged in the protective cover (471). The secondary bevel gear (472) is sleeved on the screw rod (430) and meshes with the primary bevel gear (473). One end of the transmission shaft (474) passes through the side wall of the protective cover (471) to be connected to the primary bevel gear (473), and the other end passes through the side wall of the tower body (100) to be connected to the servo motor (475). The servo motor (475) is installed on the outer side wall of the tower body (100).

5. The nitrogen oxide yellow smoke treatment device according to claim 2, characterized in that: The filtering spoiler assembly (400) further comprises a dust collecting bin (480), the bottom end of the filter cartridge (410) being connected to the inner ring of the annular cover plate (300) via the dust collecting bin (480), the dust collecting bin (480) being an annular hollow structure, the inner ring top end of the dust collecting bin (480) being provided with an ash inlet (481), and the outer ring being provided with an ash outlet (482), the ash inlet (481) being annular and corresponding to the inner side wall of the filter cartridge (410), the ash outlet (482) being multiple and being connected to the vacuum cleaner via channels (320) in the annular cover plate (300) respectively.

6. The nitrogen oxide yellow smoke treatment device according to claim 5, characterized in that: The ash inlet (481) is arranged to be inclined toward the annular cover plate (300) away from the side wall of the annular cover plate (300), and a guide plate (483) is provided on the side wall of the ash inlet (481) close to the annular cover plate (300), and the guide plate (483) extends toward the ash inlet (481) away from the side wall of the annular cover plate (300).

7. The nitrogen oxide yellow smoke treatment device according to claim 1, characterized in that: The spray circulation assembly (500) comprises an atomizing nozzle (510), a spray pipe (520) and a circulation pump (530). The atomizing nozzles (510) are in plurality and are evenly distributed inside the tower body (100). The circulation pump (530) is arranged outside the tower body (100) and is respectively connected to the annular cavity (700) and the atomizing nozzles (510) through the spray pipe (520).

8. The nitrogen oxide yellow smoke treatment device according to claim 1, characterized in that: It also includes a demisting layer (800) arranged in the tower body (100), wherein the demisting layer (800) is arranged above the packing layer (600).

9. The nitrogen oxide yellow smoke treatment device according to claim 1, characterized in that: A fan (900) is also provided in the air outlet (120).

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