CN211562517U - Dry desulfurization equipment - Google Patents
Dry desulfurization equipment Download PDFInfo
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- CN211562517U CN211562517U CN201922374690.8U CN201922374690U CN211562517U CN 211562517 U CN211562517 U CN 211562517U CN 201922374690 U CN201922374690 U CN 201922374690U CN 211562517 U CN211562517 U CN 211562517U
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Abstract
The utility model relates to a dry desulfurization equipment, the utility model discloses a desulfurization equipment includes desulfurizing tower and power device, has put solid desulfurizer in the desulfurizing tower, and waste gas is sent into in the desulfurizing tower by power device and is contacted with the desulfurizer, and active carbon is with SO in the desulfurizer2Catalytic oxidation to SO3，SO3Reacting with water to obtain sulfuric acid, and reacting with alkaline substance in desulfurizing agent to obtain the productSulfate to achieve the purpose of deep desulfurization, the desulfurization efficiency can reach more than 99 percent, and SO is generated after desulfurization2The content is less than or equal to 1mg/m3. The utility model discloses a desulfurization equipment has that desulfurization equipment investment is little, and area is little, maintains simply, and the low characteristics of working costs can establish ties and use in current wet flue gas desulfurization technology rear end, also can independent utility, can reach SO in the waste gas2Deep fine removal of (3).
Description
Technical Field
The utility model belongs to the technical field of the chemical industry, concretely relates to dry process desulfurization technology and equipment.
Background
The common power plant flue gas desulfurization technology is a wet limestone-gypsum method, which is a method for recovering gypsum by removing SO2 in flue gas in an absorption device. The method specifically comprises the following steps: preparing limestone powder into slurry, introducing flue gas into wet absorption tower of desulfurization device, and making it contact with alkaline limestone slurry fog drops sprayed from top to bottom in countercurrent mode, wherein acidic oxide SO is contained in the alkaline limestone slurry2Absorbed, the flue gas can be fully purified; absorption of SO2The slurry is reacted to generate CaSO3In-situ forced oxidation and crystallization to form CaSO4·2H2And O, dehydrating to obtain a commercial grade desulfurization byproduct, namely gypsum, and finally realizing the comprehensive treatment of the sulfur-containing flue gas. The desulfurization technology is the most widely applied method for flue gas desulfurization at present, the desulfurization efficiency can reach more than 95%, the method is suitable for high, medium and low sulfur coal, and the biggest defects are that the equipment is very huge, the occupied area is huge, and the investment and the operating cost are high. Some enterprises can adopt a flue gas circulating fluidized bed desulfurization process, which is a technology for introducing a solid fluidization technology into the flue gas desulfurization process, and lime powder with the moisture content of 3% -5% is adopted as a desulfurizing agent, and is contacted with high-speed flowing flue gas in a fluidized bed to complete desulfurization, an absorbent removed from the tail part of the fluidized bed is humidified and then recycled, and the desulfurization rate can reach 80-90% under the condition that the calcium-sulfur ratio is 1.1-1.5.
In view of this, the present application is specifically made.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems existing in the prior art, the utility model provides a dry desulfurization process and equipment, the utility model discloses a take solid desulfurizer as the basis, adopt fixed bed equipment, waste gas is sent into in the desulfurizing tower by power deviceContact with desulfurizer, activated carbon and SO of heavy load of desulfurizer2Catalytic oxidation to SO3，SO3Reacting with water to obtain sulfuric acid, reacting with alkaline substance in desulfurizing agent to obtain sulfate, and desulfurizing with desulfurizing efficiency up to 99% or more and SO2The content is less than or equal to 1mg/m3。
The utility model aims at providing a dry desulfurization process.
Another object of the present invention is to provide an apparatus for use in the above dry desulfurization process.
According to the utility model discloses embodiment's dry desulfurization process, dry desulfurization process includes following step:
(1) preparing a desulfurizing agent, wherein the desulfurizing agent is prepared from the following raw materials, and the raw materials comprise active carbon and alkaline substances;
(2) conveying waste gas into the desulfurizing tower in the step (1) from a power device to contact with a desulfurizing agent, and simultaneously supplementing water into the desulfurizing tower to oxidize sulfur dioxide into sulfur trioxide, wherein the sulfur trioxide and water generate sulfuric acid; the sulfuric acid reacts with alkaline substances in the desulfurizing agent to generate sulfate, and the desulfurizing process is completed.
According to the dry desulfurization process of the embodiment of the present invention, in the step (1), the alkaline substance is an oxide or/and hydroxide of Mg, Ca, Na.
According to the utility model discloses embodiment's dry desulfurization process, wherein, in step (1), the raw materials of desulfurizer still include red mud, binder and pore-forming agent.
According to the dry desulfurization process of the embodiment of the present invention, in the step (1), the particle size of the desulfurizing agent is 0.5-2 mm.
According to the dry desulfurization process of the embodiment of the present invention, in the step (1), the bulk density of the desulfurizing agent is 0.8-1 kg/L.
According to the utility model discloses specific embodiment's dry desulfurization process, wherein, in step (2), the volume of moisturizing is for every cubic meter waste gas replenishment 2-100 ml.
According to the utility model discloses a dry desulfurization process of embodiment, wherein, in step (2), the temperature in the desulfurizing tower is 20-200 ℃.
The further red mud is Bayer process red mud. It contains a large amount of alkaline substances, and can react with sulfuric acid to generate sulfate. Meanwhile, the red mud can be used for solving the pollution problem caused by the open stacking of the red mud.
Furthermore, the binder can be water glass, and the pore-forming agent is wood dust.
Further, the mass sulfur capacity of the desulfurizer is more than or equal to 15%. The sulfur capacity calculation method comprises the following steps: the total weight of the sulfur dioxide removal divided by ÷ (weight of desulfurizing agent-water content), in%. And testing the water content of the desulfurizer to finally calculate the sulfur capacity.
According to the utility model discloses a dry desulfurization process of embodiment, wherein, in step (2), the pressure in the desulfurizing tower is-10-100 Kpa, the reaction airspeed of desulfurizing tower is less than or equal to 4000h-1. The reaction space velocity is the volume number of the waste gas passing through the unit volume of the desulfurizer in unit time under the specified conditions. I.e. the amount of gas treated by the catalyst, in m3/(m3Catalyst h) to h)-1。。
According to the utility model discloses embodiment the equipment that uses in the dry process desulfurization technology, equipment includes desulfurizing tower and power device, the top of desulfurizing tower is equipped with the charging hole, the upper portion of desulfurizing tower is equipped with gas outlet and pressure monitoring device, the lower part of desulfurizing tower is equipped with discharge opening and air inlet, the bottom of desulfurizing tower is equipped with the drain, the lower part of desulfurizing tower is equipped with the intermediate layer, interbedded upper surface is equipped with the distributing plate, be equipped with the inert filler in the intermediate layer, interbedded centre is equipped with the moisturizing pipe, the one end of moisturizing pipe stretches into in the intermediate layer, the other end of moisturizing pipe stretches out outside the desulfurizing tower.
Further, another pressure monitoring device is arranged on the lower side of the desulfurizing tower; the other pressure detection device is arranged on the lower side of the interlayer, and a support is arranged on the outer lower side of the desulfurizing tower.
Further, the upper surface and the lower surface of the interlayer are respectively provided with a gas distribution plate, and the gas distribution plates are respectively provided with a plurality of gas holes; the air inlet and the discharge opening are arranged on the lower side of the interlayer.
Furthermore, the pore diameter of the air hole is 2-6 mm.
Further, the inert filler is inert ceramic balls.
Further, the power device is a fan.
Furthermore, the one end of moisturizing pipe is sealed and is stretched into in the interlayer, the other end opening of moisturizing pipe just stretches out outside the desulfurizing tower, stretch into in the interlayer a plurality of moisturizing hole has been seted up on the lateral wall of moisturizing pipe.
Furthermore, the aperture of the water replenishing hole is 1-5 mm.
Further, the pressure detection device is a pressure sensor.
Further, another gas distribution plate is arranged at the upper part of the desulfurizing tower, a desulfurizing agent bed layer is arranged between the other gas distribution plate and the gas distribution plate on the upper surface of the interlayer, and a desulfurizing agent is arranged in the desulfurizing agent bed layer.
The method is essentially different from the common adsorption process in that the active carbon is used for adsorbing the sulfur dioxide in the presence of water vapor and oxygen, and the surface of the active carbon adsorbs the water vapor, the oxygen and the sulfur dioxide and oxidizes the sulfur dioxide into sulfuric acid.
The bottom of the desulfurizing tower is provided with an interlayer, and a water adding device for supplementing water into the desulfurizing tower is arranged in the interlayer SO as to ensure that SO in the desulfurizing tower3Reacts with water to become sulfuric acid.
The utility model is to SO in the waste gas2The method for deep desulfurization comprises the step of carrying out deep desulfurization on SO-containing gas by a power plant2When the waste gas is introduced into the desulfurizing tower, the waste gas is fully contacted with a desulfurizing agent in the desulfurizing tower, and the activated carbon with heavy load in the desulfurizing agent and SO in the waste gas2Oxygen and water, and SO2Catalytic oxidation to sulfuric acid, formula 1:
the sulfuric acid reacts with alkaline substances in the desulfurizer to generate stable sulfate, so that the aim of deep desulfurization is fulfilled, and the chemical reaction formula is as shown in formula 2:
in formula 2, MO represents a basic substance. Through the dry desulfurization process of the utility model, SO in the waste gas is treated2Deep removal is carried out, the desulfurization efficiency can reach more than 99 percent, and SO is generated after desulfurization2The content is less than or equal to 1mg/m3。
The desulfurizer of the utility model is a fine desulfurizer which is prepared by adopting oxides or/and hydroxides of Mg, Ca and Na, active carbon and red mud as main bodies, compounding a binder and a pore-forming agent, drying, crushing, mixing, kneading, extruding, molding, shaping by a pair of rollers and screening.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a dry desulfurization process is based on solid desulfurizer, adopts fixed bed equipment (desulfurizing tower), and waste gas is sent into in the desulfurizing tower by power device and is contacted with the desulfurizer, and the active carbon of load is SO with SO in the desulfurizer2Catalytic oxidation to SO3，SO3Reacting with water to obtain sulfuric acid, reacting with alkaline substance in desulfurizing agent to obtain sulfate, and desulfurizing with desulfurizing efficiency up to 99% or more and SO removed2The content is less than or equal to 1mg/m3. The utility model discloses a desulfurization equipment has that desulfurization equipment investment is little, and area is little, maintains simply, and the low characteristics of working costs can establish ties and use in current wet flue gas desulfurization technology rear end, also can independent utility, can reach SO in the waste gas2Deep fine removal of (3).
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a desulfurizing tower in the present invention.
1. A charging port; 2. an air outlet; 3. a pressure monitoring device; 4. a discharge opening; 5. an air inlet; 6. a sewage draining outlet; 7. an interlayer; 8. a gas distribution plate; 71. an inert filler; 9. a water replenishing pipe; 10. another pressure monitoring device; 11. another gas distribution plate; 12. and (4) a bracket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In some more specific embodiments, the dry desulfurization process comprises the steps of:
(1) preparing a desulfurizing agent, wherein the desulfurizing agent is prepared from the following raw materials, and the raw materials comprise active carbon and alkaline substances;
(2) conveying the waste gas into the desulfurizing tower in the step (1) from a power device to contact with a desulfurizing agent, and simultaneously supplementing water into the desulfurizing tower to catalytically oxidize sulfur dioxide into sulfur trioxide which is absorbed by water to be changed into sulfuric acid; the sulfuric acid reacts with alkaline substances in the desulfurizing agent to generate sulfate, and the desulfurizing process is completed.
In a more specific embodiment, the dry desulfurization process comprises the following steps:
(1) preparing a desulfurizing agent, wherein the desulfurizing agent is prepared from the following raw materials, and the raw materials comprise active carbon and alkaline substances; the alkaline substance is oxides or/and hydroxides of Mg, Ca and Na; the raw materials of the desulfurizer also comprise red mud, a binder and a pore-forming agent;
(2) conveying waste gas into the desulfurizing tower in the step (1) from a power device to contact with a desulfurizing agent, keeping the temperature of the desulfurizing tower at 20-200 ℃, and simultaneously replenishing water into the desulfurizing tower to oxidize sulfur dioxide into sulfuric acid; the sulfuric acid reacts with alkaline substances in the desulfurizer to generate sulfate, and the desulfurization process is finished; adding 2-100ml of water for every 1 cubic meter of waste gas; the pressure in the desulfurizing tower is-10-100 Kpa, and the reaction space velocity of the desulfurizing tower is less than or equal to 4000h-1。
Example 1
The embodiment discloses a dry desulfurization process, which comprises the following steps:
(1) preparing a desulfurizing agent, namely putting the desulfurizing agent into a desulfurizing tower, wherein the desulfurizing agent is prepared from the following raw materials, namely activated carbon, magnesium oxide, red mud, a binder and a pore-forming agent, and is prepared into the desulfurizing agent with the particle size of 0.5-2mm through drying, crushing, mixing, kneading, extruding, molding, shaping by a pair of rollers and screening, and the bulk density of the desulfurizing agent is 0.8 kg/L;
(2) keeping the temperature in the desulfurizing tower below 20-70 ℃, sending the waste gas into the desulfurizing tower in the step (1) from a power device to contact with a desulfurizing agent, and simultaneously supplementing water into the desulfurizing tower, wherein 10ml of waste gas supplementing water is fed every 1 cubic meter to oxidize sulfur dioxide into sulfuric acid; the sulfuric acid reacts with alkaline substances in the desulfurizing agent to generate sulfate, and the desulfurizing process is completed.
Example 2
The embodiment discloses a dry desulfurization process, which comprises the following steps:
(1) preparing a desulfurizing agent, namely putting the desulfurizing agent into a desulfurizing tower, wherein the desulfurizing agent is prepared from the following raw materials, namely activated carbon, magnesium oxide, red mud, a binder and a pore-forming agent, and is prepared into the desulfurizing agent with the particle size of 0.5-2mm through drying, crushing, mixing, kneading, extruding, molding, shaping by a pair of rollers and screening, and the bulk density of the desulfurizing agent is 1 kg/L;
(2) keeping the temperature in the desulfurizing tower at 70-100 ℃, feeding the waste gas into the desulfurizing tower in the step (1) from a power device to contact with a desulfurizing agent, and simultaneously replenishing water into the desulfurizing tower, wherein 20ml of waste gas replenishing water is fed every 1 cubic meter to oxidize sulfur dioxide into sulfuric acid; the sulfuric acid reacts with alkaline substances in the desulfurizing agent to generate sulfate, and the desulfurizing process is completed.
Example 3
The embodiment discloses a dry desulfurization process, which comprises the following steps:
(1) preparing a desulfurizer, namely putting the desulfurizer into a desulfurizing tower, wherein the desulfurizer is prepared from the following raw materials, namely activated carbon, sodium hydroxide, red mud, a binder and a pore-forming agent, and the raw materials are dried, crushed, mixed, kneaded, extruded, molded, shaped by a pair of rollers and sieved to prepare the desulfurizer with the particle size of 0.5-2mm, the bulk density of the desulfurizer is 0.9kg/L, and the mass sulfur capacity of the desulfurizer is more than or equal to 15%;
(2) keeping the temperature in the desulfurization tower at 100-150 ℃ and the pressure in the desulfurization tower at-10-100 Kpa, feeding the waste gas into the desulfurization tower in the step (1) from a power device to contact with a desulfurizing agent, and simultaneously supplementing water into the desulfurization tower, wherein 30ml of waste gas supplementing water is fed every 1 cubic meter of waste gas supplementing water, so that sulfur dioxide is oxidized into sulfuric acid; the sulfuric acid reacts with alkaline substances in the desulfurizing agent to generate sulfate, and the desulfurizing process is completed.
Example 4
The embodiment discloses a dry desulfurization process, which comprises the following steps:
(1) preparing a desulfurizer, namely putting the desulfurizer into a desulfurizing tower, wherein the desulfurizer is prepared from the following raw materials, namely active carbon, calcium oxide, red mud, water glass and wood dust, and the desulfurizer with the particle size of 0.5-2mm is prepared by drying, crushing, mixing, kneading, extruding, molding, shaping by a pair of rollers and screening, the bulk density of the desulfurizer is 0.9kg/L, and the mass sulfur capacity of the desulfurizer is more than or equal to 15%;
(2) the temperature in the desulfurization tower is kept at 150-180 ℃, the pressure in the desulfurization tower is 0-100Kpa, and the reaction space velocity of the desulfurization tower is 3500-4000h-1Feeding waste gas into the desulfurizing tower in the step (1) from a power device to contact with a desulfurizing agent, simultaneously replenishing water into the desulfurizing tower, and replenishing 50ml of water for every 1 cubic meter of waste gas fed to oxidize the dioxideOxidizing the sulfur into sulfuric acid; the sulfuric acid reacts with alkaline substances in the desulfurizing agent to generate sulfate, and the desulfurizing process is completed.
The equipment used in the dry desulfurization process of the utility model comprises a desulfurization tower and a power device, the top of the desulfurizing tower is provided with a charging hole 1, the upper part of the desulfurizing tower is provided with an air outlet 2 and a pressure monitoring device 3, the lower part of the desulfurizing tower is provided with a discharge opening 4 and an air inlet 5, the bottom of the desulfurizing tower is provided with a sewage discharge opening 6, the lower part of the desulfurizing tower is also provided with an interlayer 7, the upper surface and the lower surface of the interlayer are both provided with gas distribution plates 8, an inert filler 71 is arranged in the interlayer, a water replenishing pipe 9 is arranged in the middle of the interlayer, one end of the water replenishing pipe is closed and extends into the interlayer, a plurality of water replenishing holes are arranged on the side wall of the part of the water replenishing pipe extending into the interlayer, the other end of the water replenishing pipe extends out of the desulfurizing tower, and the lower side of the desulfurizing tower is also provided with another pressure monitoring device 10; the upper portion of desulfurizing tower is equipped with another gas distribution plate 11, the outer downside of desulfurizing tower is equipped with support 12.
Specifically, the power device is a fan.
Specifically, the inert filler is an inert ceramic ball.
Specifically, the aperture of the water replenishing hole is 1-5 mm.
Specifically, the air inlet and the discharge opening are arranged on the lower side of the interlayer.
Specifically, the pressure detection device is a pressure sensor. The pressure sensor can detect the pressure of gas in the desulfurizing tower, and whether the system is blocked or not is judged by pressure measurement, so that the water supplementing quantity is adjusted.
Specifically, the distribution plate is a gas distribution plate with a porous structure.
More specifically, the gas distribution plate is provided with a plurality of air holes, and the aperture of each air hole is 2-6 mm.
A desulfurizer bed layer is arranged between the other gas distribution plate and the gas distribution plate on the upper surface of the interlayer. And a desulfurizer is arranged on the gas distribution plate on the upper surface of the interlayer.
Water in the water replenishing pipe enters the interlayer through the water replenishing holes, is uniformly dispersed through the inert filler, and uniformly enters the desulfurizer bed layer through the air holes of the air distribution plate on the upper surface of the interlayer, so that the problem of bias flow of air can be effectively solved.
The utility model discloses a desulfurizing tower is special to SO2The utility model provides a desulfurizing tower of fine desulfurization agent design, the structure of tower is similar with the desulfurizing tower in the present desulfurization technology by natural gas or synthetic gas, and the applicant discovers in the use of desulfurizer, if do not supply sufficient moisture, can cause the live time to shorten by a wide margin, influences the normal use of desulfurizer, consequently, the utility model discloses a tower bottom of desulfurizing tower has designed the intermediate layer. The interlayer has the function of uniformly supplementing water required by reaction into a desulfurizer bed layer in the using process of the desulfurizer. And the excessive water supplement amount can cause system blockage and influence normal use. Therefore, the pressure detection devices are designed at the front end and the rear end of the bed layer, and the water replenishing amount is controlled by the pressure detection devices, so that the blockage caused by overlarge resistance is prevented.
When the desulfurizer is used, the charging port is opened, the other gas distribution plate is opened, the desulfurizer is placed, the other gas distribution plate is installed, the power device introduces waste gas from the gas inlet, simultaneously, water is supplemented through the water supplementing pipe according to the required amount, the waste gas carries water through the interlayer, enters the desulfurizer bed layer, contacts with the desulfurizer, is desulfurized, and flows out from the gas outlet.
Comparative example 1
The only difference between this comparative example and example 4 is that no calcium oxide was added to the desulphurizing agent.
Comparative example 2
The only difference between this comparative example and example 4 is that 120ml of make-up water per 1 cubic meter of off-gas feed.
Desulfurization effect test
Test example 1
The method of example 4, the method of comparative example 1 and the method of comparative example 2 are respectively used for desulfurizing the waste gas of the power plant, the flow rate of the flue gas is 200L/h, and the reaction space velocity is 3500-4000h-1Keeping the temperature in the desulfurizing tower at 150-180 ℃, the pressure in the desulfurizing tower at 0-100Kpa, and desulfurizing SO2The content is the average SO content of the flue gas in the 1 st hour2Content resultsAs shown in tables 1-3.
TABLE 1 SO2The content is 4300mg/m3Before and after flue gas desulfurization
| Group of | SO before desulfurization2Content (0 mg/m)3) | Desulfurized SO2Content (mg/m)3) |
| Example 4 | 4300 | 0.1 |
| Comparative example 1 | 4300 | 389 |
| Comparative example 2 | 4300 | Too much water supply causes blockage |
TABLE 2 SO2The content is 6100mg/m3Before and after flue gas desulfurization
| Group of | SO before desulfurization2Content (mg/m)3) | Desulfurized SO2Content (mg/m)3) |
| Example 4 | 6100 | 0.2 |
| Comparative example 1 | 6100 | 576 |
| Comparative example 2 | 6100 | Too much water supply causes blockage |
TABLE 3 SO2The content is 7800mg/m3Before and after flue gas desulfurization
| Group of | SO before desulfurization2Content (mg/m)3) | Desulfurized SO2Content (mg/m)3) |
| Example 4 | 7800 | 0.3 |
| Comparative example 1 | 7800 | 589 |
| Comparative example 2 | 7800 | 241 |
As can be seen from tables 1-3, after desulfurization is carried out by the dry desulfurization process of the utility model, the desulfurization effect is better, the desulfurization efficiency can reach more than 99 percent, and SO is removed after desulfurization2The content is less than or equal to 1mg/m3(ii) a The desulfurization efficiency of comparative example 1 or 2 is lower, shows that calcium oxide plays key effect to desulfurization efficiency in the desulfurizer of the utility model, what direct influence desulfurization efficiency of moisturizing volume.
In the desulfurization process, the SO in the desulfurized flue gas is constantly detected2In the case of SO2The content is more than 1mg/m3When the desulfurizing agent is used, the desulfurizing agent is replaced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a desulfurization equipment, a serial communication port, equipment includes desulfurizing tower and power device, the top of desulfurizing tower is equipped with the charging hole, the upper portion of desulfurizing tower is equipped with gas outlet and pressure monitoring device, the lower part of desulfurizing tower is equipped with discharge opening and air inlet, the bottom of desulfurizing tower is equipped with the drain, the lower part of desulfurizing tower is equipped with the intermediate layer, interbedded upper surface is equipped with the distributing plate, be equipped with the inert filler in the intermediate layer, the interbedded centre is equipped with the moisturizing pipe, the one end of moisturizing pipe stretches into in the intermediate layer, the other end of moisturizing pipe stretches out outside the desulfurizing tower.
2. The apparatus of claim 1, wherein the lower side of the desulfurization tower is further provided with another pressure monitoring device; the other pressure monitoring device is arranged on the lower side of the interlayer, and a support is arranged on the outer lower side of the desulfurizing tower.
3. The apparatus according to claim 1, wherein the upper surface and the lower surface of the interlayer are respectively provided with a gas distribution plate, and the gas distribution plates are respectively provided with a plurality of gas holes; the air inlet and the discharge opening are arranged on the lower side of the interlayer.
4. The apparatus of claim 3, wherein the pores have a pore size of 2-6 mm.
5. The apparatus of claim 1, wherein the inert filler is inert ceramic balls.
6. The apparatus of claim 1, wherein the motive device is a fan.
7. The apparatus of claim 1, wherein one end of the water replenishing pipe is closed and extends into the interlayer, the other end of the water replenishing pipe is open and extends out of the desulfurizing tower, and a plurality of water replenishing holes are formed in the side wall of the water replenishing pipe extending into the interlayer.
8. The apparatus of claim 7, wherein the pore size of the water replenishing hole is 1-5 mm.
9. The apparatus of claim 1, wherein the pressure monitoring device is a pressure sensor.
10. The apparatus according to claim 1, wherein another gas distribution plate is arranged at the upper part of the desulfurizing tower, a desulfurizing agent bed layer is arranged between the another gas distribution plate and the gas distribution plate on the upper surface of the interlayer, and a desulfurizing agent is arranged in the desulfurizing agent bed layer.
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|---|---|---|---|
| CN201922374690.8U CN211562517U (en) | 2019-12-25 | 2019-12-25 | Dry desulfurization equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374690.8U CN211562517U (en) | 2019-12-25 | 2019-12-25 | Dry desulfurization equipment |
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| CN211562517U true CN211562517U (en) | 2020-09-25 |
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