CN213160585U - Dense-phase semi-dry desulfurization and denitrification absorbent humidification and activation device - Google Patents
Dense-phase semi-dry desulfurization and denitrification absorbent humidification and activation device Download PDFInfo
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- CN213160585U CN213160585U CN202021472149.7U CN202021472149U CN213160585U CN 213160585 U CN213160585 U CN 213160585U CN 202021472149 U CN202021472149 U CN 202021472149U CN 213160585 U CN213160585 U CN 213160585U
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Abstract
The utility model relates to a dense phase semi-dry desulfurization denitration absorbent humidification activation device belongs to metallurgical environmental protection technical field, including humidifier box (1), absorption section (13), (mixing) shaft (8), pan feeding mouth (22), humidifier export (19), motor speed reducer II (23), ultrasonic wave humidification device, steam humidification device, atomizing humidification device, activation processing apparatus, pneumatic agitating unit adjust the temperature. The device has reasonable structure and reliable operation. The accessible realizes even humidification and activation to the intensive mixing of absorbent, promotes SOx/NOx control effect. And the temperature of the absorbent is increased by adopting steam temperature-adjusting and humidifying treatment, so that the desulfurization and denitrification treatment in winter is facilitated.
Description
Technical Field
The utility model relates to a dense-phase semi-dry desulfurization and denitrification absorbent humidification and activation device, which belongs to the technical field of metallurgy environmental protection.
Background
In order to meet the requirement that the pollutant emission of a sintering machine head reaches the ultralow emission standard, metallurgical enterprises begin to perform ultralow emission modification on sintering machines in many times. The combined removal of sulfur dioxide and nitrogen oxides is the most realistic from the aspects of economic benefit and application prospect. In recent years, the activated coke desulfurization and denitrification technology and the circulating fluidized bed desulfurization and SCR denitrification technology are relatively mature, but the activated coke desulfurization and denitrification technology has the problems of high dry-process raw material performance and high economic cost, so that the investment cost of the circulating fluidized bed desulfurization and SCR denitrification is too high, the enterprise burden is too heavy, and the popularization is limited to a certain extent. Aiming at the dense-phase semi-dry desulfurization system established by part of metallurgical enterprises, the device and the process for dense-phase semi-dry desulfurization and denitrification of sintering flue gas are adopted, so that the investment is low, the structure is simple, the construction period is short, and the requirement of ultralow emission is met.
When the process is adopted for combined oxidation and denitration treatment, oxidized sintering flue gas enters from the top of a dense-phase dry tower, a desulphurization absorbent is mixed with water through a humidifier and then enters from the top of the dense-phase dry tower, and the humidified absorbent and SO in the flue gas fall in the falling process2And NOx, thereby irreversibly removing SO2 and NOx in the flue gas. However, the absorbent is humidified by adding water through a water pipe, and the flue gas and the humidified absorbent do not react sufficiently due to uneven mixing, SO that SO is generated2And NOx is discharged up to the standard, only water quantity can be increased continuously, so that the absorbent is easily adhered to the inner wall of the tower, the absorbent is more and more thick, and hardening is finally caused, and meanwhile, the ash discharge valve is unsmooth in blanking. In addition, the temperature in the tower is reduced after the water is added for desulfurization, the desulfurization and denitrification reaction is not facilitated to be carried out, especially, the temperature in winter is low, and the tower temperature cannot meet the desulfurization and denitrification requirements for a long time, SO2 and NOx are easily discharged in an overproof manner.
In summary, the traditional water adding method cannot meet the requirements of new emission standards, and in order to ensure that the sintering machine head flue gas SO2 and NOx can stably reach the standard for a long time and operate in the operating state of the dense-phase semi-dry desulfurization and denitrification device for sintering flue gas, a dense-phase semi-dry desulfurization and denitrification absorbent humidification and activation device is needed to be designed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a dense phase semidry desulfurization denitration absorbent humidification activation device is provided, makes absorbent and water intensive mixing even, promotes absorbent desulfurization reaction effect, improves SOx/NOx control efficiency.
The utility model adopts the technical proposal that:
a dense-phase semi-dry desulfurization and denitrification absorbent humidifying and activating device comprises a humidifier box body, an absorption section, a stirring shaft, a feeding port, a humidifier outlet, motor speed reducers II, blades, an ultrasonic humidifying device, a steam temperature adjusting and humidifying device, an atomizing and humidifying device, an activation processing device and a pneumatic stirring device, wherein the humidifier box body is arranged on the upper portion of the absorption section, the humidifier outlet is arranged on the lower portion of the front end of the humidifier box body and communicated with the absorption section, the feeding port is arranged on the upper portion of the tail end of the humidifier box body, the stirring shaft is provided with two sets and arranged inside the humidifier box body, spiral blades are arranged on the stirring shaft, the two sets of blades are symmetrically arranged, the two motor speed reducers II are arranged on the outer side of the front end of the humidifier box body and are in assembly connection with the stirring shaft, the two motor speed reducers II are arranged to rotate inwards synchronously, and, the atomization humidification device is arranged at the upper part of the humidifier box body, the steam humidification device is arranged at the upper part of the rear end of the humidifier box body, the pneumatic stirring devices are arranged at the lower parts of two sides of the humidifier box body, and the activation treatment device is arranged at the upper part of the absorption section;
the ultrasonic humidifying device comprises an ultrasonic humidifier and an atomized water inlet pipeline, the ultrasonic humidifier is arranged on the outer side of the tail end of the humidifier box body, one end of the atomized water inlet pipeline is communicated with the ultrasonic humidifier, and an outlet at the other end of the atomized water inlet pipeline is arranged at the lower end of the feeding port and communicated with the humidifier box body;
the steam temperature-adjusting humidifying device comprises two sets of water vapor main pipes and two sets of water vapor branch pipes, the two sets of water vapor main pipes are arranged on the outer side of the upper part of the rear end of the humidifying machine box body, one end of each water vapor branch pipe is communicated with the water vapor main pipe, and the other end of each water vapor branch pipe extends into the humidifying machine box body and is communicated with the humidifying machine box body;
the atomization humidification device comprises a water inlet header pipe, a spray pipe and an atomization nozzle, wherein the water inlet header pipe is arranged on the outer side of the upper part of the humidifier box body, one end of the spray pipe is communicated with the water inlet header pipe, and the other end of the spray pipe extends into the humidifier box body and is provided with the atomization nozzle;
the pneumatic stirring device comprises two groups of air compression pipes which are respectively arranged at two sides of the humidifier box body and extend into the humidifier box body;
the activation treatment device comprises a chain stirrer, a motor speed reducer I and a bearing seat, wherein the chain stirrer is arranged on the upper part of the absorption section, one end of the chain stirrer is provided with the motor speed reducer I, the other end of the chain stirrer is provided with the bearing seat, the chain stirrer comprises a chain and a chain stirring shaft, the chain stirring shaft is assembled with the motor speed reducer I and the bearing seat, and the chain is assembled on the chain stirring shaft.
According to the humidifying and activating device for the dense-phase semi-dry desulfurization and denitrification absorbent, each set of the water vapor main pipe is provided with 4 water vapor branch pipes, the water vapor branch pipes are arranged at equal intervals, and the depth of the water vapor branch pipes extending into the box body (1) of the humidifier is 80-120 mm.
According to the dense-phase semi-dry desulfurization and denitrification absorbent humidifying and activating device, the lower part of the water inlet main pipe is provided with 3 spray pipes, the 3 spray pipes are arranged right above the two stirring shafts in parallel, the 3 spray pipes and the water inlet main pipe are welded on the box body of the humidifier, the lower part of each spray pipe is provided with 9 spray holes, each spray hole is arranged at equal intervals, and each spray hole is provided with an atomizing nozzle.
The humidifying and activating device of the dense-phase semi-dry desulfurization and denitrification absorbent as described in the claim, wherein 6 air compression pipes are arranged on each side, and the length of the air compression pipes extending into the box body of the humidifying machine is 80-120 mm.
The dense-phase semi-dry desulfurization and denitrification absorbent humidifying and activating device comprises 2 sets of chain stirrers, wherein the two sets of chain stirrers are arranged up and down, and the vertical distance between the chain stirring shafts is 1800 and 2200 mm.
The dense-phase semi-dry desulfurization and denitrification absorbent humidifying and activating device has the chain length of 600-800 mm and the space between the chains of 500-800 mm.
The utility model has the advantages that: the device has reasonable structure and reliable operation. The accessible realizes even humidification and activation to the intensive mixing of absorbent, promotes SOx/NOx control effect. And the temperature of the absorbent is increased by adopting steam temperature-adjusting and humidifying treatment, so that the desulfurization and denitrification treatment in winter is facilitated.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic view of the humidifying device of the present invention;
FIG. 3 is a side view of the humidifying device of the present invention;
FIG. 4 is a front view of the steam temperature adjusting and humidifying device of the utility model;
FIG. 5 is a side view of the steam temperature adjusting and humidifying device of the present invention;
FIG. 6 is a front view of the atomizing humidifier of the present invention;
FIG. 7 is a side view of the atomizing humidifier of the present invention;
FIG. 8 is a schematic view of the pneumatic stirring device of the present invention;
FIG. 9 is a front view of the device activation processing apparatus of the present invention;
FIG. 10 is a schematic view of a stirring shaft of the device of the present invention;
FIG. 11 is a schematic view of the chain agitator of the present invention;
fig. 12 is a schematic view of the compressed air injection lance of the present invention;
fig. 13 is a schematic view of the chain of the device of the present invention;
the labels in the figure are: the device comprises a humidifier box body 1, a water vapor main pipeline 2, an air compression blowing pipe 3, an atomization nozzle 4, a water inlet main pipeline 5, a spray pipe 6, a water vapor branch pipeline 7, a stirring shaft 8, an ultrasonic humidifier 9, an atomized water inlet pipeline 10, an air compressor 11, a booster fan 12, an absorption section 13, a chain stirrer 14, a motor speed reducer I15, a chain 16, a bearing seat 17, a chain stirring shaft 18, a humidifier outlet 19, an air compression contraction section 20, an air compression expansion section 21, a feeding port 22, a motor speed reducer II 23, an air compression main pipeline 24 and blades 25.
Detailed Description
The following provides a more detailed description of the present invention with reference to the accompanying drawings and detailed description.
As shown in the attached drawing, the dense-phase semi-dry desulfurization and denitrification absorbent humidifying and activating device comprises a humidifier box body 1, an absorption section 13, a stirring shaft 8, a feeding port 22, a humidifier outlet 19, a motor speed reducer II 23, blades 25, an ultrasonic humidifying device, a steam temperature adjusting and humidifying device, an atomizing and humidifying device, an activation processing device and a pneumatic stirring device, wherein the humidifier box body 1 is arranged at the upper part of the absorption section 13, the humidifier outlet 19 is arranged at the lower part of the front end of the humidifier box body 1 and is communicated with the absorption section 13, the feeding port 22 is arranged at the upper part of the tail end of the humidifier box body 1, two sets of stirring shafts 8 are arranged inside the humidifier box body 1, the stirring shafts 8 are provided with spiral blades 25, the two sets of blades 25 are symmetrically arranged, the two motors II 23 are arranged at the outer side of the front end of the humidifier box body 1 and are assembled and connected, the two motor speed reducers II 23 are arranged to rotate inwards synchronously, the ultrasonic humidifying device is arranged at the upper part of the tail end of the humidifier box body 1, the atomizing humidifying device is arranged at the upper part of the humidifier box body 1, the steam humidifying device is arranged at the upper part of the rear end of the humidifier box body 1, the pneumatic stirring device is arranged at the lower parts of two sides of the humidifier box body 1, and the activation processing device is arranged at the upper part of the absorption section 13;
the ultrasonic humidifying device comprises an ultrasonic humidifier 9 and an atomized water inlet pipeline 10, wherein the ultrasonic humidifier 9 is arranged on the outer side of the tail end of the humidifier box body 1, one end of the atomized water inlet pipeline 10 is communicated with the ultrasonic humidifier 9, and the outlet of the other end of the atomized water inlet pipeline 10 is arranged at the lower end of the feeding port 22 and is communicated with the humidifier box body 1;
the steam temperature-adjusting humidifying device comprises a steam main pipe 2 and two steam branch pipes 7, wherein the two steam main pipes 2 are arranged on the outer side of the upper part of the rear end of the humidifier box body 1, one end of each steam branch pipe 7 is communicated with the steam main pipe 2, and the other end of each steam branch pipe 7 extends into the humidifier box body 1 and is communicated with the humidifier box body 1;
the atomization humidification device comprises a water inlet header pipe 5, a spray pipe 6 and an atomization nozzle 4, wherein the water inlet header pipe 5 is arranged on the outer side of the upper part of the humidifier box body 1, one end of the spray pipe 6 is communicated with the water inlet header pipe 5, and the other end of the spray pipe extends into the humidifier box body 1 and is provided with the atomization nozzle 4;
the pneumatic stirring device comprises two groups of air compression pipes 3, and the two groups of air compression pipes 3 are respectively arranged at two sides of the humidifier box body 1 and extend into the humidifier box body 1;
activation processing apparatus includes chain agitator 14, motor reducer I15, bearing frame 17, chain agitator 14 sets up on absorbing section 13 upper portion, and one end is equipped with motor reducer I15, and the other end is equipped with bearing frame 17, chain agitator 14 includes chain 16, chain (mixing) shaft 18 assembles with motor reducer I15 and bearing frame 17, chain 16 assembles on chain (mixing) shaft 18.
Each set of the water vapor main pipe 2 is respectively provided with 4 water vapor branch pipes 7, each water vapor branch pipe 7 is arranged at equal intervals, and the depth of the water vapor branch pipe 7 extending into the humidifier box 1 is 100 mm.
3 shower 6 of 5 lower parts of water inlet manifold, 3 shower 6 parallels are arranged in two (mixing) shafts 8 directly over, 3 shower 6 and 5 welding of water inlet manifold have 9 holes that spray on humidifier box 1, every shower 6) lower part is opened, and every sprays the equidistant range in hole, and every sprays the hole and installs atomizer 4.
Each side of the air compression pipes 3 is provided with 6 air compression pipes, and the length of the air compression pipes 3 extending into the humidifier box body 1 is 90 mm.
The chain stirrers 14 have 2 sets, and two sets of chain stirrers 14 are arranged from top to bottom, and the vertical distance between the chain stirring shafts 18 is 2000 mm.
The chain 16 has a length of 650 mm and the spacing between the chains 16 is 600 mm.
The method for humidifying and activating the dense-phase semi-dry desulfurization and denitrification absorbent comprises an ultrasonic humidifying treatment process, a steam temperature-adjusting humidifying treatment process, an atomization humidifying treatment process, a pneumatic stirring treatment process and an activation treatment process, and comprises the following process steps:
starting an ultrasonic humidifier 9, starting a water vapor main pipe 2, a water inlet main pipe 5, a motor speed reducer I15 and a motor speed reducer I15;
secondly, the water vapor treated by the ultrasonic humidifier 9 is blown into the humidifier box body 1 through the atomized water inlet pipeline 10, the absorbent entering the humidifier box body 1 through the feeding port 22 is combined with the water vapor treated by the ultrasonic humidifier 9 blown in through the atomized water inlet pipeline 10 in the falling process, the ultrasonic humidification treatment is carried out, and the particle diameter of the water vapor treated by the ultrasonic humidifier 9 is 6 microns;
the absorbent after the ultrasonic humidification falls onto the stirring shaft), is stirred and pushed by the stirring shaft 8 and moves from the tail end to the front end of the humidifier box body 1;
water vapor is sprayed into the humidifier box body 1 through the water vapor main pipe 2 and the water vapor branch pipe 7, is combined with the absorbent moving on the stirring shaft 8, is uniformly stirred through the stirring shaft 8, and is subjected to steam temperature-adjusting humidification treatment, wherein the water pressure range of the water vapor passing through the water vapor main pipe (2) is 0.2 MPa;
the humidifying water is atomized by the water inlet header pipe 5, the spray pipe 6 and the atomizing nozzle 4 and then sprayed into the humidifier box body 1, and is combined with the absorbent moving on the stirring shaft 8, and is uniformly stirred by the stirring shaft 8 to carry out atomization and humidification treatment;
blowing compressed air into the humidifier box body 1 through the air compression pipes 3 on the two sides of the humidifier box body 1, stirring and mixing the absorbent, the water vapor and the atomized water vapor moving on the stirring shaft 8, and performing pneumatic stirring treatment, wherein the pressure range of the air compressed when the air compression pipes 3 are blown into the humidifier box body 1 is 0.3 MPa;
seventhly, the absorbent stirred and pushed by the stirring shaft 8 moves to the humidifier outlet 19, falls into the absorption section 13, falls onto two sets of chain stirrers 14 in the falling process, is impacted by the rotating chains 16, loosens and crushes absorbent particles, continuously exposes new surfaces, and is subjected to activation treatment.
The device has reasonable structure and reliable operation. The accessible realizes even humidification and activation to the intensive mixing of absorbent, promotes SOx/NOx control effect. And the temperature of the absorbent is increased by adopting steam temperature-adjusting and humidifying treatment, so that the desulfurization and denitrification treatment in winter is facilitated.
Claims (6)
1. A dense-phase semi-dry desulfurization and denitrification absorbent humidifying and activating device is characterized by comprising a humidifier box body (1), an absorption section (13), a stirring shaft (8), a feeding port (22), a humidifier outlet (19), a motor speed reducer II (23), blades (25), an ultrasonic humidifying device, a steam temperature adjusting and humidifying device, an atomizing and humidifying device, an activating treatment device and a pneumatic stirring device, wherein the humidifier box body (1) is arranged at the upper part of the absorption section (13), the humidifier outlet (19) is arranged at the lower part of the front end of the humidifier box body (1) and is communicated with the absorption section (13), the feeding port (22) is arranged at the upper part of the tail end of the humidifier box body (1), the stirring shaft (8) is provided with two sets of spiral blades (25), and the two sets of blades (25) are symmetrically arranged, the two motor speed reducers II (23) are arranged on the outer side of the front end of the humidifier box body (1) and are in assembly connection with the stirring shaft (8), the two motor speed reducers II (23) are arranged to rotate inwards synchronously, the ultrasonic humidifying device is arranged on the upper portion of the tail end of the humidifier box body (1), the atomizing humidifying device is arranged on the upper portion of the humidifier box body (1), the steam humidifying device is arranged on the upper portion of the rear end of the humidifier box body (1), the pneumatic stirring device is arranged on the lower portions of two sides of the humidifier box body (1), and the activation processing device is arranged on the upper portion of the absorption section (13);
the ultrasonic humidifying device comprises an ultrasonic humidifier (9) and an atomized water inlet pipeline (10), the ultrasonic humidifier (9) is arranged on the outer side of the tail end of the humidifier box body (1), one end of the atomized water inlet pipeline (10) is communicated with the ultrasonic humidifier (9), and an outlet at the other end of the atomized water inlet pipeline is arranged at the lower end of the feeding port (22) and communicated with the humidifier box body (1);
the steam temperature-adjusting humidifying device comprises a steam main pipe (2) and two steam branch pipes (7), wherein the two steam main pipes (2) are arranged on the outer side of the upper part of the rear end of the humidifying machine box body (1), one end of each steam branch pipe (7) is communicated with the steam main pipe (2), and the other end of each steam branch pipe extends into the humidifying machine box body (1) and is communicated with the humidifying machine box body (1);
the atomization humidification device comprises a water inlet header pipe (5), a spray pipe (6) and an atomization nozzle (4), wherein the water inlet header pipe (5) is arranged on the outer side of the upper part of the humidifier box body (1), one end of the spray pipe (6) is communicated with the water inlet header pipe (5), and the other end of the spray pipe extends into the humidifier box body (1) and is provided with the atomization nozzle (4);
the pneumatic stirring device comprises two groups of air compression pipes (3), and the two groups of air compression pipes (3) are respectively arranged at two sides of the humidifier box body (1) and extend into the humidifier box body (1);
activation processing apparatus includes chain agitator (14), motor reducer I (15), bearing frame (17), chain agitator (14) set up on absorbing section (13) upper portion, and one end is equipped with motor reducer I (15), and the other end is equipped with bearing frame (17), chain agitator (14) are including chain (16), chain (mixing) shaft (18) and motor reducer I (15) and bearing frame (17) assembly, chain (16) assembly is on chain (mixing) shaft (18).
2. The humidifying and activating device of the dense-phase semi-dry desulfurization and denitrification absorbent as set forth in claim 1, characterized in that each set of the steam header pipe (2) is provided with 4 steam branch pipes (7), each steam branch pipe (7) is arranged at equal intervals, and the depth of the steam branch pipe (7) extending into the humidifier box body (1) is 80-120 mm.
3. The humidifying and activating device for the dense-phase semi-dry desulfurization and denitrification absorbent as claimed in claim 1, characterized in that 3 spray pipes (6) are installed at the lower part of the water inlet header pipe (5), the 3 spray pipes (6) are arranged in parallel right above the two stirring shafts (8), the 3 spray pipes (6) and the water inlet header pipe (5) are welded on the humidifier box body (1), the lower part of each spray pipe (6) is provided with 9 spray holes, each spray hole is arranged at equal intervals, and each spray hole is provided with an atomizing nozzle (4).
4. The humidifying and activating device of the dense-phase semi-dry desulfurization and denitrification absorbent as set forth in claim 1, characterized in that 6 air compression pipes (3) are respectively arranged on both sides of the humidifier box body (1), and the length of the air compression pipes (3) extending into the humidifier box body (1) is 80-120 mm.
5. The humidifying and activating device for dense-phase semi-dry desulfurization and denitrification absorbent as claimed in claim 1, characterized in that the chain agitator (14) has 2 sets, two sets of chain agitators (14) are arranged up and down, and the vertical distance between the chain agitating shafts (18) is 1800 and 2200 mm.
6. The humidifying and activating device for the dense-phase semi-dry desulfurization and denitrification absorbent as claimed in claim 1, wherein the length of the chains (16) is 600-800 mm, and the distance between the chains (16) is 500-800 mm.
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| CN202021472149.7U CN213160585U (en) | 2020-07-23 | 2020-07-23 | Dense-phase semi-dry desulfurization and denitrification absorbent humidification and activation device |
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| CN202021472149.7U CN213160585U (en) | 2020-07-23 | 2020-07-23 | Dense-phase semi-dry desulfurization and denitrification absorbent humidification and activation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889007A (en) * | 2020-07-23 | 2020-11-06 | 唐山钢铁集团有限责任公司 | Humidifying and activating device and method for dense-phase semi-dry desulfurization and denitrification absorbent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889007A (en) * | 2020-07-23 | 2020-11-06 | 唐山钢铁集团有限责任公司 | Humidifying and activating device and method for dense-phase semi-dry desulfurization and denitrification absorbent |
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