CN214809752U - Denitration device by normal-temperature redox method - Google Patents
Denitration device by normal-temperature redox method Download PDFInfo
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- CN214809752U CN214809752U CN202023293234.XU CN202023293234U CN214809752U CN 214809752 U CN214809752 U CN 214809752U CN 202023293234 U CN202023293234 U CN 202023293234U CN 214809752 U CN214809752 U CN 214809752U
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Abstract
The utility model discloses a device of normal atmospheric temperature redox method denitration, include the denitration tower as the main part, the denitration tower in the bottom be equipped with the liquid storage tank, be located the denitration tower left end of liquid storage tank top be equipped with the air inlet, air inlet top be equipped with the packing layer No. one, packing layer top be equipped with the spray layer No. one, spray layer top be equipped with the defogging layer No. one, defogging layer top be equipped with the packing layer No. two, packing layer top be equipped with the spray layer No. two, No. two spray layer tops be equipped with the defogging layer No. two, denitration tower top be equipped with the gas vent, the denitration tower be equipped with the liquid distribution groove outward, the other NaClO2 solution elevated tank that is equipped with of liquid distribution groove. The utility model overcomes the problem that the traditional flue gas purification system has high running cost among the prior art. The utility model has the advantages of low in production cost, simple process, convenient operation and denitration efficiency are high.
Description
Technical Field
The utility model relates to a flue gas field of handling, more specifically say, relate to a device of normal atmospheric temperature redox method denitration.
Background
SO2 and NOX in sintering tail smoke gas of smelting and the like are important sources of atmospheric pollutants, seriously harm living environment, and frequently cause environmental problems of acid rain, haze and the like. The national environmental protection department has continuously promoted requirements on flue gas treatment, the purification of flue gas is taken as an effective way for controlling pollutant emission, from the beginning of dry desulfurization, high-temperature catalytic reduction of SCR denitration, high energy consumption and expensive catalyst, which leads to high operation cost and high maintenance difficulty, to the near-term low-temperature wet desulfurization WFGD and the expensive ozone generator of ozone oxidation denitration, the ozone must be absolutely excessive in operation, which leads to high investment operation cost, complex operation and denitration treatment process, and the technology and equipment always have defects and deficiencies, thereby becoming a bottleneck of flue gas treatment. Therefore, the development of a device and a process which are simple and convenient to operate, low in running cost, matched with wet desulphurization and capable of meeting the requirements of normal-temperature flue gas denitration becomes the direction of the existing efforts in the field of flue gas purification.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a overcome the traditional clean system of flue gas that exists among the prior art and have the problem that the running cost is high, now provide the device and the technology of normal atmospheric temperature redox denitration that have easy and simple to handle and running cost low grade advantage.
The utility model discloses a normal temperature redox denitration device, which comprises a denitration tower as a main body, wherein a liquid storage tank is arranged at the bottom in the denitration tower, an air inlet is arranged at the left end of the denitration tower above the liquid storage tank, a packing layer is arranged above the air inlet, a spray layer is arranged above the packing layer, a demisting layer is arranged above the spray layer, a packing layer is arranged above the demisting layer, a second spray layer is arranged above the packing layer, a second demisting layer is arranged above the second spray layer, an exhaust port is arranged at the top of the denitration tower, a liquid distribution tank is arranged outside the denitration tower, a NaClO2 solution high-level tank is arranged beside the liquid distribution tank, the output end of the NaClO2 solution high-level tank is connected with an input end pipeline of the liquid distribution tank, the output end of the liquid distribution tank is connected with the spray layer through a liquid distribution pipeline and a slurry pump, the device comprises a liquid preparation tank, a liquid storage tank, a metering pump, a liquid distribution pipeline, a liquid storage tank, a NaHS solution high-level tank, a liquid distribution pipeline, an oxidation circulating pump, a liquid storage tank, a NaHS solution high-level tank, a liquid distribution tank and a denitration circulating pump, wherein the second input end of the liquid preparation tank is connected with the liquid storage tank through a second liquid distribution pipeline, the first liquid distribution pipeline is connected with the second liquid distribution pipeline through the oxidation circulating pump, the right side of the liquid preparation tank is provided with the liquid storage tank, the NaHS solution high-level tank is arranged on the right side of the liquid storage tank, and the output end of the liquid preparation tank and the output end of the NaHS solution high-level tank are respectively connected with a second spraying layer through a third liquid distribution pipeline and the denitration circulating pump.
The utility model discloses the theory of operation: in a liquid preparation storage tank at normal temperature, NaClO2 in an acid solution releases ClO2 with extremely strong oxidizing power, ClO2 is very soluble in water and does not react with water, NaClO2 serving as a denitration oxidant in the acid solution is sprayed out from a first spraying layer, NaClO2 reversely contacts with flue gas at a first filler layer of a denitration tower at the acid solution to generate an oxidation reaction to generate nitrate and NO2, the nitrate enters a liquid storage tank along with NaClO2 in the acid solution, NO2 continuously rises along with the flue gas to enter a second filler layer, the NaHS solution is sprayed out from the second spraying layer, the NO2 reversely contacts with a reduction denitration agent NaHS solution of the second filler layer to generate a reduction reaction to generate sulfate and N2, the sulfate enters the liquid storage tank along with the NaHS solution, and the N2 is discharged from an exhaust port at the top of the denitration tower along with the treated flue gas.
ClO2 releases the chemical reaction formula: 5ClO2- + 4H + → 4ClO2 + Cl- + 2H 2O. Oxidation denitration chemical reaction formula: 3NO + ClO2 + 2H2O → 2NO2 + Cl- + NO3- + 4H +. Reduction denitration chemical reaction formula: HS- + 2NO2 → SO42- + N2 + H +.
As preferred, a spray the layer and spray the layer structure the same with No. two, a spray the layer including spray piping, spray piping in be equipped with the conduit bracket, the spray piping lower extreme be equipped with the shower nozzle of a plurality of equipartition, spray piping top be equipped with the crossbeam, crossbeam and spray piping between be equipped with the connecting pipe, crossbeam upper end be equipped with the rotating electrical machines, the periphery of rotating electrical machines be equipped with the anticorrosive motor cover that is used for protecting the rotating electrical machines, crossbeam right-hand member and denitration tower inside right side wall weld mutually, the connecting pipe in be equipped with the pivot, the one end of pivot and conduit bracket upper end center weld mutually, the other end of pivot and the output shaft fixed connection of rotating electrical machines.
Preferably, the left end and the right end of the pipeline support are respectively welded with the left end and the right end of the interior of the spray pipeline, the upper end of the spray pipeline is provided with a liquid inlet matched with the diameter of the bottom surface of the connecting pipe, a bearing is arranged between the liquid inlet and the connecting pipe, the upper end surface of an inner ring of the bearing is welded with the bottom of the connecting pipe, and the lower end surface of an outer ring of the bearing is welded with the liquid inlet.
As preferred, the crossbeam that is located the connecting pipe top open have with pivot diameter assorted shaft hole, the crossbeam interpolation of shaft hole right-hand member be equipped with the infusion pipeline, the delivery outlet of infusion pipeline be located the opening part of connecting pipe, the input of the infusion pipeline on layer that sprays is connected through pipeline and oxidation circulating pump with a branch liquid pipeline, the input of the infusion pipeline on layer that sprays No. two is connected through pipeline and denitration circulating pump with No. three branch liquid pipelines.
Preferably, the liquid preparation tank comprises a stirring barrel as a main body, a liner is arranged in the stirring barrel, a buffer device used for absorbing vibration generated by the liner is arranged on the inner wall of the stirring barrel, a fixed base used for fixing the liner is arranged at the bottom end inside the stirring barrel, and a stirring end cover is arranged above the liner.
Preferably, the cross section of the inner container is U-shaped, the inner container is separable from the fixed base, the inner container is connected with the fixed base through bolts and threads, and handles for extracting the inner container are respectively arranged on two sides of the opening of the inner container.
Preferably, the buffer device comprises a buffer ring as a main body, and the buffer ring is connected with the inner wall of the stirring barrel through at least 8 uniformly distributed buffer springs.
Preferably, the stirring end cover include as the end cover of main part, the end cover on the side cover have a sealing washer, the border department on end cover surface be equipped with the sealed knot of 8 at least equipartitions, the end cover top be equipped with agitator motor, agitator motor's the left and right sides be equipped with the end cover handle respectively, agitator motor front side be equipped with the operation panel, the end cover center be equipped with the (mixing) shaft, the (mixing) shaft periphery be equipped with and be used for the sealed lid with the inner bag is sealed, the edge of sealed lid be equipped with No. two sealing washers, the (mixing) shaft pass through gear drive with agitator motor, the (mixing) shaft on be equipped with the stirring rake.
Preferably, the device comprises a paddle rod as a main body, a paddle cap is arranged at the upper end of the paddle rod, a blade beam is arranged at the lower end of the paddle rod, a plurality of uniformly distributed differential diversion blades are arranged at the lower end of the blade beam, the longitudinal section of the paddle cap is in a T shape, an upper connecting groove is formed at the lower end of the paddle cap, an upper bolt matched with the upper connecting groove is arranged at the upper end of the paddle rod, an installation hole is formed in the center of the blade beam, a connecting socket is inserted into the installation hole, a lower connecting groove is formed at the upper end of the connecting socket, a lower bolt matched with the lower connecting groove is arranged at the lower end of the paddle rod, a plurality of uniformly distributed reinforcing parts are welded between the side edge of the connecting socket and the upper end face of the blade beam, the differential diversion blades comprise vertical installation rods perpendicular to the blade beam, an inclined installation rod is arranged at the left side of the vertical installation rod perpendicular to the blade beam, a plurality of uniformly distributed diversion grids are arranged between the vertical installation rod and the inclined installation rod, the upper end of vertical installation pole and the upper end of slope installation pole pass through bolt fixed connection with the leaf roof beam respectively, differential water conservancy diversion grid about both ends pass through bolt fixed connection with slope installation pole and vertical installation pole respectively, differential water conservancy diversion grid's upper and lower both ends be equipped with the differential lug that a plurality of equidistant was arranged respectively, be equipped with the separation clearance between two adjacent differential lugs, the width of separation clearance be 10-15 mm, the quantity of the differential lug that is located differential water conservancy diversion grid lower extreme is less than the piece of differential water conservancy diversion grid upper end.
The utility model discloses a denitration technology does:
1. at normal temperature, the desulfurization flue gas enters the denitration tower from the gas inlet, and fully contacts with the oxidation denitration agent in the first packing layer to carry out oxidation reaction.
2. During the oxidation reaction, the oxidation denitration agent is atomized and sprayed by a nozzle of the first spraying layer, the sodium chlorite solution is metered into the liquid preparation tank by the elevated tank and is mixed with the treatment liquid pumped by the metering pump to release ClO2 and generate the oxidation denitration agent, and the denitration agent is pumped into the circulating liquid lifted by the circulating pump by the slurry pump and is lifted to the nozzle for spraying.
3. After the oxidation reaction, the flue gas passes through the first-stage demister, passes through the gas cap, and is in reverse contact with the reduction denitration agent in the combined filler zone, so that mass transfer and reduction reaction are fully performed. The reduction denitration agent is lifted to a nozzle for atomization spraying by a denitration circulating pump, denitration treatment liquid in a circulating liquid storage tank and the reduction denitration agent metered and added by a NaHS solution high-level tank.
4. And after being collected by the secondary demister, the denitration flue gas is emptied from the tower top.
The utility model discloses following beneficial effect has: low production cost, simple process, convenient operation and high denitration efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the spray pipe of the present invention.
Fig. 3 is a schematic structural diagram of the mixing tank of the present invention.
Fig. 4 is a schematic structural view of the stirring paddle of the present invention.
Fig. 5 is a schematic structural view of the differential diversion grid of the present invention.
A denitration tower 1, a liquid storage tank 2, an air inlet 3, a first packing layer 4, a first spray layer 5, a first demisting layer 6, a second packing layer 7, a second spray layer 8, a second demisting layer 9, an air outlet 10, a liquid preparation tank 11, a NaClO2 solution elevated tank 12, a first liquid separation pipeline 14, a slurry pump 15, a second liquid separation pipeline 16, a metering pump 17, an oxidation circulating pump 18, a liquid storage tank 19, a NaHS solution elevated tank 20, a third liquid separation pipeline 21, a denitration circulating pump 22, a stirring barrel 23, an inner container 24, a fixed base 25, a spray pipeline 26, a pipeline support 27, a spray head 28, a cross beam 29, a connecting pipe 30, a rotating motor 31, an anticorrosive motor cover 32, a rotating shaft 33, a liquid inlet 34, a bearing 35, a shaft hole 36, a liquid conveying pipeline 37, an end cover handle 38, a handle 39, a buffer ring 40, an end cover 41, a first sealing ring 42, a sealing buckle 43, a stirring motor 44, an operation table 45 and a stirring shaft 46, the sealing cover 47, the second sealing ring 48, the stirring paddle 49, the paddle rod 52, the paddle cap 53, the blade beam 54, the differential guide vane 55, the upper connecting groove 56, the upper plug pin 57, the mounting hole 58, the connecting socket 59, the lower connecting groove 60, the lower plug pin 61, the reinforcing piece 62, the vertical mounting rod 63, the inclined mounting rod 64, the differential guide grid 65, the differential bump 66 and the separation gap 67.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example 1: the utility model is further explained according to the attached drawings 1, 2, 3, 4 and 5. the denitration device by normal temperature oxidation-reduction method comprises a denitration tower 1 as the main body, a liquid storage tank 2 is arranged at the bottom of the denitration tower 1, an air inlet 3 is arranged at the left end of the denitration tower 1 above the liquid storage tank 2, a first packing layer 4 is arranged above the air inlet 3, a first spray layer 5 is arranged above the first packing layer 4, a first demisting layer 6 is arranged above the first spray layer 5, a second packing layer 7 is arranged above the first demisting layer 6, a second spray layer 8 is arranged above the second packing layer 7, a second spray layer 9 is arranged above the second spray layer 8, an exhaust port 10 is arranged at the top of the denitration tower 1, a liquid distribution tank 11 is arranged outside the denitration tower 1, a NaClO2 solution high-level tank 12 is arranged beside the liquid distribution tank 11, the output end of the NaClO2 solution high-level tank 12 is connected with the first input end of the liquid preparation tank 11 through a pipeline, the output end of the liquid preparation tank 11 is connected with the first spray layer 5 through a first liquid separation pipeline 14 and a slurry pump 15, the second input end of the liquid preparation tank 11 is connected with the liquid storage tank 2 through a second liquid separation pipeline 16 and a metering pump 17, the first liquid separation pipeline 14 and the second liquid separation pipeline 16 are connected through an oxidation circulating pump 18, the right side of the liquid preparation tank 11 is provided with a liquid storage tank 19, the right side of the liquid storage tank 19 is provided with a NaHS solution high-level tank 20, and the output end of the liquid preparation tank 11 and the output end of the NaHS solution high-level tank 20 are respectively connected with the second spray layer 8 through a third liquid separation pipeline 21 and a denitration circulating pump 22.
A spray layer 5 and No. two and spray layer 8 structures the same, a spray layer 5 including spray piping 26, spray piping 26 in be equipped with pipeline bracket 27, spray piping 26 lower extreme be equipped with the shower nozzle 28 of a plurality of equipartition, spray piping 26 top be equipped with crossbeam 29, crossbeam 29 and spray piping 26 between be equipped with connecting pipe 30, crossbeam 29 upper end be equipped with rotating electrical machines 31, rotating electrical machines 31's periphery be equipped with the anticorrosive motor cover 32 that is used for protecting rotating electrical machines 31, crossbeam 29 right-hand member and the inside right side wall of denitration tower weld mutually, connecting pipe 30 in be equipped with pivot 33, the one end of pivot 33 and pipeline bracket 27 upper end center weld mutually, the other end of pivot 33 and rotating electrical machines 31's output shaft fixed connection.
The beam 29 above the connecting pipe 30 is provided with a shaft hole 36 matched with the diameter of the rotating shaft, a liquid conveying pipeline 37 is inserted into the beam 29 at the right end of the shaft hole 36, the output port of the liquid conveying pipeline 37 is positioned at the opening of the connecting pipe 30, the input end of the liquid conveying pipeline 37 of the first spraying layer 5 is connected with the first liquid separating pipeline 14 through a pipeline and an oxidation circulating pump 18, and the input end of the liquid conveying pipeline 37 of the second spraying layer 8 is connected with the third liquid separating pipeline 21 through a pipeline and a denitration circulating pump 22.
The liquid preparation tank 11 comprises a stirring barrel 23 as a main body, an inner container 24 is arranged in the stirring barrel 23, a buffer device used for absorbing vibration generated by the inner container 24 is arranged on the inner wall of the stirring barrel 23, a fixing base 25 used for fixing the inner container 24 is arranged at the bottom end inside the stirring barrel 23, and a stirring end cover is arranged above the inner container 24.
The cross section of the inner container 24 is U-shaped, the inner container 24 is separable from the fixed base 25, the inner container 24 is connected with the fixed base 25 through bolts and threads, and handles 39 for extracting the inner container 24 are respectively arranged on two sides of the opening of the inner container 24.
The buffer device comprises a buffer ring 40 as a main body, wherein the buffer ring 40 is connected with the inner wall of the stirring barrel 23 through at least 8 uniformly distributed buffer springs.
The stirring end cover include as the end cover 41 of main part, end cover 41 on the side the cover have a sealing washer 42, the border department on end cover 41 surface be equipped with the sealed knot 43 of 8 at least equipartitions, end cover 41 top be equipped with agitator motor 44, agitator motor 44 the left and right sides be equipped with end cover handle 38 respectively, agitator motor 44 front side be equipped with operation panel 45, end cover 41 center be equipped with (mixing) shaft 46, the (mixing) shaft 46 periphery be equipped with be used for the sealed lid 47 of inner bag 24, the edge of sealed lid 47 be equipped with No. two sealing washers 48, (mixing) shaft 46 and agitator motor 44 pass through gear drive, (mixing) shaft 46 on be equipped with stirring rake 49.
The stirring paddle 49 comprises a paddle rod 52 as a main body, a paddle cap 53 is arranged at the upper end of the paddle rod 52, a blade beam 54 is arranged at the lower end of the paddle rod 52, a plurality of uniformly distributed differential guide vanes 55 are arranged at the lower end of the blade beam 54, the longitudinal section of the paddle cap 53 is in a T shape, an upper connecting groove 56 is arranged at the lower end of the paddle cap 53, an upper bolt 57 matched with the upper connecting groove 56 is arranged at the upper end of the paddle rod 52, a mounting hole 58 is arranged at the center of the blade beam 54, a connecting socket 59 is inserted into the mounting hole 58, a lower connecting groove 60 is arranged at the upper end of the connecting socket 59, a lower bolt 61 matched with the lower connecting groove 60 is arranged at the lower end of the paddle rod 52, a plurality of uniformly distributed reinforcing pieces 62 are welded between the side edge of the connecting socket 59 and the upper end face of the blade beam 54, the guide differential guide vanes 55 comprise vertical mounting rods 63 perpendicular to the blade beam 54, the left side of the vertical installation rod 63 perpendicular to the blade beam 54 is provided with an inclined installation rod 64, a plurality of uniformly distributed differential flow guide grids 65 are arranged between the vertical installation rod 63 and the inclined installation rod 64, the upper end of the vertical installation rod 63 and the upper end of the inclined installation rod 64 are respectively fixedly connected with the blade beam 54 through bolts, the left end and the right end of each differential flow guide grid 65 are respectively fixedly connected with the inclined installation rod 64 and the vertical installation rod 63 through bolts, the upper end and the lower end of each differential flow guide grid 65 are respectively provided with a plurality of differential lugs 66 which are distributed at equal intervals, a separation gap 67 is arranged between every two adjacent differential lugs 66, the width of the separation gap 67 is 10-15 mm, and the number of the differential lugs 66 positioned at the lower end of the differential flow guide grids 65 is less than that of the upper end of the differential flow guide grids 65.
The utility model discloses a denitration technology does:
1. at normal temperature, the desulfurization flue gas enters a denitration tower 1 from an air inlet 3, and fully contacts with an oxidation denitration agent in a first filler layer 4 to carry out oxidation reaction;
2. during the oxidation reaction, the oxidation denitration agent is atomized and sprayed by a nozzle of the first spraying layer 5, the sodium chlorite solution is metered into the liquid preparation tank 11 by the elevated tank and is mixed with the treatment liquid pumped by the metering pump 17 to release ClO2 and generate the oxidation denitration agent, and the denitration agent is pumped into the circulating liquid lifted by the circulating pump by the slurry pump 15 and is lifted to the nozzle for spraying;
3. after the oxidation reaction, the flue gas passes through the first-stage demister, passes through the gas cap, and is in reverse contact with the reduction denitration agent in the combined filler zone, so that mass transfer and reduction reaction are fully performed. The reduction denitration agent is lifted to a nozzle for atomization spraying by a denitration circulating pump 22, denitration treatment liquid in a circulating liquid storage tank 19 and the reduction denitration agent metered in by a NaHS solution elevated tank 20;
4. and after being collected by the secondary demister, the denitration flue gas is emptied from the tower top.
The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (9)
1. A normal-temperature oxidation-reduction denitration device comprises a denitration tower (1) serving as a main body, and is characterized in that a liquid storage tank (2) is arranged at the bottom in the denitration tower (1), an air inlet (3) is arranged at the left end of the denitration tower (1) above the liquid storage tank (2), a first packing layer (4) is arranged above the air inlet (3), a first spraying layer (5) is arranged above the first packing layer (4), a first defogging layer (6) is arranged above the first spraying layer (5), a second packing layer (7) is arranged above the first defogging layer (6), a second spraying layer (8) is arranged above the second packing layer (7), a second defogging layer (9) is arranged above the second spraying layer (8), an exhaust port (10) is arranged at the top of the denitration tower (1), and a liquid tank (11) is arranged outside the denitration tower (1), a NaClO2 solution high-level tank (12) is arranged beside the liquid preparation tank (11), the output end of the NaClO2 solution high-level tank (12) is connected with the first input end of the liquid preparation tank (11) through a pipeline, the output end of the liquid preparation tank (11) is connected with the first spraying layer (5) through a first liquid separating pipeline (14) and a slurry pump (15), the second input end of the liquid preparation tank (11) is connected with the liquid storage tank (2) through a second liquid separation pipeline (16) and a metering pump (17), the first liquid separation pipeline (14) and the second liquid separation pipeline (16) are connected through an oxidation circulating pump (18), a liquid storage tank (19) is arranged on the right side of the liquid preparation tank (11), a NaHS solution high-level tank (20) is arranged on the right side of the liquid storage tank (19), the output end of the liquid preparation tank (11) and the output end of the NaHS solution high-level tank (20) are respectively connected with the second spraying layer (8) through a third liquid separation pipeline (21) and a denitration circulating pump (22).
2. The device for denitration by a normal-temperature redox method according to claim 1, wherein the first spray layer (5) and the second spray layer (8) have the same structure, the first spray layer (5) comprises a spray pipeline (26), a pipeline support (27) is arranged in the spray pipeline (26), a plurality of uniformly distributed spray heads (28) are arranged at the lower end of the spray pipeline (26), a cross beam (29) is arranged above the spray pipeline (26), a connecting pipe (30) is arranged between the cross beam (29) and the spray pipeline (26), a rotating motor (31) is arranged at the upper end of the cross beam (29), an anti-corrosion motor cover (32) for protecting the rotating motor (31) is arranged at the periphery of the rotating motor (31), the right end of the cross beam (29) is welded with the right side wall in the denitration tower (1), a rotating shaft (33) is arranged in the connecting pipe (30), one end of the rotating shaft (33) is welded with the center of the upper end of the pipeline bracket (27), and the other end of the rotating shaft (33) is fixedly connected with an output shaft of the rotating motor (31).
3. The device for denitration by an ordinary temperature redox method according to claim 2, wherein the left and right ends of the pipeline bracket (27) are respectively welded with the left and right end walls inside the spray pipeline (26), the upper end of the spray pipeline (26) is provided with a liquid inlet (34) matched with the diameter of the bottom surface of the connecting pipe (30), a bearing (35) is arranged between the liquid inlet (34) and the connecting pipe (30), the upper end surface of the inner ring of the bearing (35) is welded with the bottom of the connecting pipe (30), and the lower end surface of the outer ring of the bearing (35) is welded with the liquid inlet (34).
4. The device for denitration by an ordinary-temperature redox method according to claim 2, wherein a shaft hole (36) matched with the diameter of the rotating shaft is formed in the cross beam (29) above the connecting pipe (30), a liquid conveying pipeline (37) is inserted into the cross beam (29) at the right end of the shaft hole (36), an output port of the liquid conveying pipeline (37) is located at an opening of the connecting pipe (30), an input end of the liquid conveying pipeline (37) of the first spraying layer (5) is connected with the first liquid separating pipeline (14) through a pipeline and an oxidation circulating pump (18), and an input end of the liquid conveying pipeline (37) of the second spraying layer (8) is connected with the third liquid separating pipeline (21) through a pipeline and a denitration circulating pump (22).
5. The device for denitration by a normal-temperature redox method according to claim 2, wherein the liquid preparation tank (11) comprises a stirring barrel (23) as a main body, a liner (24) is arranged in the stirring barrel (23), a buffer device for absorbing vibration generated by the liner (24) is arranged on the inner wall of the stirring barrel (23), a fixed base (25) for fixing the liner (24) is arranged at the bottom end in the stirring barrel (23), and a stirring end cover is arranged above the liner (24).
6. The device for denitration by a normal-temperature redox method according to claim 5, wherein the cross section of the inner container (24) is U-shaped, the inner container (24) is separable from the fixed base (25), the inner container (24) is connected with the fixed base (25) through bolts and threads, and handles (39) for extracting the inner container (24) are respectively arranged on two sides of the opening of the inner container (24).
7. An apparatus as claimed in claim 5, wherein the buffer device comprises a buffer ring (40) as a main body, and the buffer ring (40) is connected with the inner wall of the stirring barrel (23) through at least 8 uniformly distributed buffer springs.
8. The device for denitration by a normal-temperature redox method according to claim 5, wherein the stirring end cover comprises an end cover (41) as a main body, a first sealing ring (42) is sleeved on the side edge of the end cover (41), at least 8 sealing buttons (43) are uniformly distributed on the edge of the surface of the end cover (41), a stirring motor (44) is arranged at the top of the end cover (41), end cover handles (38) are respectively arranged on the left side and the right side of the stirring motor (44), an operation table (45) is arranged on the front side of the stirring motor (44), a stirring shaft (46) is arranged in the center of the end cover (41), a sealing cover (47) for sealing the inner container (24) is arranged on the periphery of the stirring shaft (46), a second sealing ring (48) is arranged on the edge of the sealing cover (47), and the stirring shaft (46) and the stirring motor (44) are in gear transmission, and a stirring paddle (49) is arranged on the stirring shaft (46).
9. The normal-temperature redox denitration device according to claim 8, wherein the stirring paddle (49) comprises a paddle rod (52) as a main body, a paddle cap (53) is arranged at the upper end of the paddle rod (52), a blade beam (54) is arranged at the lower end of the paddle rod (52), a plurality of uniformly distributed differential diversion blades (55) are arranged at the lower end of the blade beam (54), the longitudinal section of the paddle cap (53) is in a T shape, an upper connecting groove (56) is formed at the lower end of the paddle cap (53), an upper plug pin (57) matched with the upper connecting groove (56) is arranged at the upper end of the paddle rod (52), an installation hole (58) is formed in the center of the blade beam (54), a connecting socket (59) is inserted in the installation hole (58), a lower connecting groove (60) is formed at the upper end of the connecting socket (59), a lower plug pin (61) matched with the lower connecting groove (60) is arranged at the lower end of the paddle rod (52), the connecting socket is characterized in that a plurality of uniformly distributed reinforcing pieces (62) are welded between the side edge of the connecting socket (59) and the upper end surface of the blade beam (54), the differential guide vane (55) comprises a vertical mounting rod (63) perpendicular to the blade beam (54), an inclined mounting rod (64) is arranged on the left side of the vertical mounting rod (63) perpendicular to the blade beam (54), a plurality of uniformly distributed differential guide grids (65) are arranged between the vertical mounting rod (63) and the inclined mounting rod (64), the upper ends of the vertical mounting rod (63) and the upper ends of the inclined mounting rods (64) are fixedly connected with the blade beam (54) through bolts respectively, the left end and the right end of each differential guide grid (65) are fixedly connected with the inclined mounting rod (64) and the vertical mounting rod (63) through bolts respectively, and a plurality of differential convex blocks (66) which are arranged at equal intervals are arranged at the upper end and the lower end of each differential guide grid (65), a separation gap (67) is arranged between two adjacent differential lugs (66), the width of the separation gap (67) is 10-15 mm, and the number of the differential lugs (66) positioned at the lower end of the differential flow guide grid (65) is less than that of the upper ends of the differential flow guide grid (65).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202023293234.XU CN214809752U (en) | 2020-12-31 | 2020-12-31 | Denitration device by normal-temperature redox method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023293234.XU CN214809752U (en) | 2020-12-31 | 2020-12-31 | Denitration device by normal-temperature redox method |
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| CN214809752U true CN214809752U (en) | 2021-11-23 |
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| CN202023293234.XU Active CN214809752U (en) | 2020-12-31 | 2020-12-31 | Denitration device by normal-temperature redox method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717658A (en) * | 2020-12-31 | 2021-04-30 | 浙江南化防腐设备有限公司 | Device and process for denitration by normal-temperature redox method |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717658A (en) * | 2020-12-31 | 2021-04-30 | 浙江南化防腐设备有限公司 | Device and process for denitration by normal-temperature redox method |
| CN112717658B (en) * | 2020-12-31 | 2024-06-21 | 浙江南化防腐设备有限公司 | Device and process for denitration by normal-temperature oxidation-reduction method |
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