An energy-saving desulfurization device

Abstract

The utility model relates to the technical field of desulfurization devices, in particular to an energy-saving desulfurization device, which not only utilizes ammonia water and limestone to perform two desulfurizations on flue gas, thereby improving the desulfurization effect, but also scrapes off the calcium hydroxide that may be generated, thereby preventing it from affecting the desulfurization effect; the utility model comprises a reaction tube; and also comprises a stirring mechanism, a spraying mechanism, a desulfurization mechanism and a scraping mechanism, wherein the stirring mechanism is mounted on the reaction tube and turbulents the flue gas, the spraying mechanism is mounted on the stirring mechanism and sprays ammonia water for desulfurization, the desulfurization mechanism is mounted on the stirring mechanism and utilizes limestone to further neutralize sulfur dioxide in the flue gas, and the scraping mechanism is mounted on the stirring mechanism and cleans the inner wall.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization devices, in particular to an energy-saving desulfurization device. Background Art

[0002] Desulfurization generally refers to the process of removing sulfur from fuel before combustion and before flue gas emissions. In the production and processing of the chemical industry, the flue gas will contain a large amount of sulfur. Flue gas desulfurization is one of the important technical measures to prevent and control air pollution.

[0003] Existing desulfurization devices, such as an energy-saving desulfurization device disclosed in the utility model patent with application number 202220559532.9, have a main structure including a body, an air inlet pipe is connected to the left wall of the body, an air outlet pipe is connected to the right wall of the body, an absorbent box is arranged on the inner top of the body, a feed port passes through the body, and the feed port is connected to the absorbent box, a connecting pipe is connected to the bottom of the absorbent box, a water pipe is connected to the bottom of the connecting pipe, a motor is installed on the top of the body, a drive shaft is connected to the bottom output end of the motor, the drive shaft passes through the absorbent box, and a mixing blade is installed on the drive shaft, and an impeller is arranged It is arranged on the inner side of the outlet pipe, and a collecting port is provided at the bottom of the outlet pipe. When in use, firstly, lime is digested and water is added to make slaked lime milk, and the slaked lime milk is poured into the absorbent box, and the motor is started to drive the water pipe to move back and forth, and at the same time drive the rotation of the mixing blade and the up and down movement of the stirring blade. The beating of the flue gas and water mist by the mixing blade improves the reaction rate of the absorbent water mist and the sulfur in the flue gas, and the up and down movement of the stirring blade stirs the absorbent at the bottom of the body, and the potential energy of the flue gas discharged from the outlet pipe drives the impeller to rotate, thereby brushing off the absorbent in the form of dry particles adhered to the filter screen.

[0004] However, most of the existing desulfurization devices only use a single alkaline substance and sulfur dioxide for neutralization, the neutralization effect is poor, and the quicklime after the reaction is easily adhered to the device and is difficult to clean. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an energy-saving desulfurization device which not only utilizes ammonia water and limestone to desulfurize the flue gas twice to improve the desulfurization effect, but also scrapes off the calcium hydroxide that may be generated to prevent it from affecting the desulfurization effect.

[0006] The utility model discloses an energy-saving desulfurization device, comprising a reaction tube; further comprising a stirring mechanism, a spraying mechanism, a desulfurization mechanism and a scraping mechanism, wherein the stirring mechanism is installed on the reaction tube and disturbs the flue gas, the spraying mechanism is installed on the stirring mechanism and sprays ammonia water for desulfurization, the desulfurization mechanism is installed on the stirring mechanism and further neutralizes sulfur dioxide in the flue gas with limestone, and the scraping mechanism is installed on the stirring mechanism and cleans the inner wall; the reaction tube is respectively connected with the boiler flue and the chimney, the flue gas enters the reaction tube, the stirring mechanism is started to stir the flue gas, and the spraying mechanism is started to spray ammonia water into the reaction tube to mix with the flue gas, so as to neutralize sulfur dioxide in the flue gas, the flue gas moves upward and continues to combine with the limestone on the desulfurization mechanism, the limestone further neutralizes sulfur dioxide in the flue gas, and then is transported to the chimney and discharged into the atmosphere, and the stirring mechanism drives the scraping mechanism to scrape and clean the inner wall of the reaction tube to prevent the generated impurities from adhering to the inner wall.

[0007] Preferably, the reaction cylinder includes four groups of supporting legs, a cylinder body, a smoke inlet pipe, a flange, a drain hopper and a smoke exhaust pipe. The bottom ends of the four groups of supporting legs are connected to the ground, the bottom end of the cylinder body is connected to the top ends of the four groups of supporting legs, a cavity is provided inside the cylinder body, the smoke inlet pipe is installed on the cylinder body and communicated with the interior of the cavity of the cylinder body, the flange is installed on the smoke inlet pipe, the bottom end of the drain hopper is communicated with the interior of the top end of the cylinder body, and the bottom end of the smoke exhaust pipe is communicated with the interior of the top end of the drain hopper; the smoke inlet pipe is connected to the filter flue through the flange, the flue gas enters the cavity of the cylinder body through the smoke inlet pipe for desulfurization treatment, and after desulfurization is completed, the smoke enters the drain hopper and is transported to the factory chimney through the smoke exhaust pipe and discharged into the atmosphere.

[0008] Preferably, a hydrophobic plate is installed in the hydrophobic bucket; since the flue gas reacts with ammonia water in the cavity of the cylinder, the flue gas may carry a large amount of moisture when it is discharged. The hydrophobic plate can effectively block the moisture in the flue gas and retain the moisture in the flue gas, thereby reducing resource consumption.

[0009] Preferably, the stirring mechanism includes an electric motor, a reducer, a sleeve, a transmission shaft and fan blades, the bottom end of the motor is connected to the top of the cylinder, the bottom end of the reducer is connected to the top of the cylinder, the sleeve is installed in the cavity of the cylinder, the transmission shaft is rotatably installed in the sleeve and longitudinally connected to the reducer, and the fan blades are installed on the transmission shaft; start the motor, the motor drives the transmission shaft to rotate through the reducer, the transmission shaft drives the fan blades to rotate, the fan blades rotate to stir the flue gas in the cavity of the cylinder, so that the flue gas is fully mixed with ammonia water, thereby enhancing the desulfurization effect and accelerating the discharge of the flue gas.

[0010] Preferably, the spraying mechanism includes a pump body, a water pipe, a water distributor, multiple groups of nozzles and sleeve two, the bottom end of the pump body is connected to the top end of the cylinder, the water pipe is installed on the pump body, the water distributor is installed in the hollow of the cylinder, the multiple groups of nozzles are installed on the water distributor, and sleeve two is installed on the water distributor and sleeved on the transmission shaft; the water inlet of the pump body is connected to the ammonia water pool, the reducer drives the pump body to pump water, the pump body transports the ammonia water to the water distributor through the water pipe, the water distributor distributes the ammonia water to the multiple groups of nozzles, and the nozzles spray the ammonia water, so that the ammonia water and the flue gas fully react to neutralize the sulfur dioxide in the flue gas.

[0011] Preferably, the desulfurization mechanism includes a storage plate, a brush, a hinge, a sealing door and a handle. The storage plate is installed in the cavity of the cylinder and has multiple groups of air holes. The brush is installed on the drive shaft. A feed port is provided on the cylinder. The hinge is installed at the feed port of the cylinder. The sealing door is installed on the hinge, and the handle is installed on the sealing door. The staff pulls the sealing door through the handle to open the feed port of the cylinder, spreads limestone on the storage plate, and then closes the sealing door to prevent flue gas from overflowing. The flue gas moves upward and contacts the limestone. The residual sulfur dioxide in the flue gas is neutralized by the limestone. At the same time, the drive shaft drives the brush to rotate, and the rotation of the brush cleans the bottom surface of the storage plate to prevent the limestone from clogging the air holes on the storage plate.

[0012] Preferably, the scraping mechanism includes a scraper, two groups of reinforcing ribs, a drain pipe and a valve, the top of the scraper is connected to the bottom end of the drive shaft, the two groups of reinforcing ribs are installed on the scraper and connected to the drive shaft, the top of the drain pipe is connected to the bottom end of the cylinder, and the valve is installed on the drain pipe; the drive shaft drives the scraper to rotate, and the scraper scrapes and cleans the inner wall of the cavity of the cylinder to prevent impurities generated during the reaction from adhering to the inner wall of the cavity. The stability of the scraper is enhanced by setting two groups of reinforcing ribs. When a certain amount of wastewater accumulates in the cavity of the cylinder, the valve is opened, and the impurities are discharged through the drain pipe along with the wastewater.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the reaction cylinder is connected with the boiler flue and the chimney respectively, the flue gas enters the reaction cylinder, the stirring mechanism is started to stir the flue gas, and at the same time the spraying mechanism is started to spray ammonia water into the reaction cylinder to mix with the flue gas to neutralize the sulfur dioxide in the flue gas, the flue gas moves upward and continues to combine with the limestone on the desulfurization mechanism, the limestone further neutralizes the sulfur dioxide in the flue gas, and then is transported to the chimney and discharged into the atmosphere, and the stirring mechanism drives the scraping mechanism to scrape and clean the inner wall of the reaction cylinder to prevent the generated impurities from sticking to the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-section axonometric structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the axonometric structure of the reaction cylinder of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional axonometric structure of the stirring mechanism, the spraying mechanism and the desulfurization mechanism of the utility model;

[0017] Figure 4 It is a partially enlarged sectional axonometric structural schematic diagram of the scraping mechanism of the utility model.

[0018] Markings in the attached drawings: 01, reaction cylinder; 11, supporting legs; 12, cylinder body; 13, smoke inlet pipe; 14, flange; 15, drain bucket; 16, smoke exhaust pipe; 02, stirring mechanism; 21, motor; 22, reducer; 23, sleeve one; 24, transmission shaft; 25, fan blades; 03, spraying mechanism; 31, pump body; 32, water pipe; 33, water distributor; 34, nozzle; 35, sleeve two; 04, desulfurization mechanism; 41, storage board; 42, brush; 43, hinge; 44, sealing door; 45, handle; 05, scraping mechanism; 51, scraper; 52, reinforcing ribs; 53, drain pipe; 54, valve. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example 1

[0021] The utility model is an energy-saving desulfurization device, comprising a reaction tube 01; further comprising a stirring mechanism 02, a spraying mechanism 03, a desulfurization mechanism 04 and a scraping mechanism 05, wherein the stirring mechanism 02 is mounted on the reaction tube 01 and disturbs the flue gas, the spraying mechanism 03 is mounted on the stirring mechanism 02 and sprays ammonia water for desulfurization, the desulfurization mechanism 04 is mounted on the stirring mechanism 02 and further neutralizes sulfur dioxide in the flue gas with limestone, and the scraping mechanism 05 is mounted on the stirring mechanism 02 and cleans the inner wall; the reaction tube 01 comprises four groups of support legs 11, a tube body 12, a smoke inlet pipe 13 and a plurality of support legs 14. , flange 14, drain bucket 15 and smoke exhaust pipe 16, the bottom ends of the four groups of support legs 11 are connected to the ground, the bottom end of the cylinder 12 is connected to the top ends of the four groups of support legs 11, a cavity is arranged inside the cylinder 12, the smoke inlet pipe 13 is installed on the cylinder 12 and communicates with the inside of the cavity of the cylinder 12, the flange 14 is installed on the smoke inlet pipe 13, the bottom end of the drain bucket 15 is communicated with the inside of the top end of the cylinder 12, the bottom end of the smoke exhaust pipe 16 is communicated with the inside of the top end of the drain bucket 15; a drain plate is installed in the drain bucket 15; the stirring mechanism 02 includes a motor 21, a reducer 22, a sleeve The motor 21 is connected to the top of the cylinder 12, the reducer 22 is connected to the top of the cylinder 12, the sleeve 23 is installed in the cavity of the cylinder 12, the transmission shaft 24 is rotatably installed in the sleeve 23 and is longitudinally connected to the reducer 22, and the fan blades 25 are installed on the transmission shaft 24; the spraying mechanism 03 includes a pump body 31, a water pipe 32, a water distributor 33, a plurality of nozzles 34 and a sleeve 2 35, the bottom end of the pump body 31 is connected to the top of the cylinder 12, the water pipe 32 is installed on the pump body 31, and the water distributor 33 is installed In the hollow of the cylinder 12, multiple groups of nozzles 34 are installed on the water distributor 33, and the sleeve 35 is installed on the water distributor 33 and sleeved on the transmission shaft 24; the desulfurization mechanism 04 includes a storage plate 41, a brush 42, a hinge 43, a sealing door 44 and a handle 45. The storage plate 41 is installed in the cavity of the cylinder 12 and has multiple groups of air holes. The brush 42 is installed on the transmission shaft 24. The cylinder 12 has a feed port, the hinge 43 is installed at the feed port of the cylinder 12, the sealing door 44 is installed on the hinge 43, and the handle 45 is installed on the sealing door 44;When it is working, the staff first pulls the sealing door 44 through the handle 45 to open the feed port of the cylinder 12, spreads limestone on the storage plate 41, and then closes the sealing door 44 to prevent the smoke from overflowing, connects the smoke inlet pipe 13 with the filter flue through the flange 14, and the smoke enters the cavity of the cylinder 12 through the smoke inlet pipe 13, and starts the motor 21. The motor 21 drives the transmission shaft 24 to rotate through the reducer 22, and the transmission shaft 24 drives the fan blades 25 to rotate. The fan blades 25 rotate and stir the smoke in the cavity of the cylinder 12, so that the smoke is fully mixed with the ammonia water, thereby enhancing the desulfurization effect and accelerating the discharge of the smoke. The water inlet of the pump body 31 is connected with the ammonia water pool, and the reducer 22 drives the pump body 31 to pump Water, the pump body 31 transports the ammonia water to the water distributor 33 through the water pipe 32, the water distributor 33 distributes the ammonia water to multiple groups of nozzles 34, the nozzles 34 spray the ammonia water, so that the ammonia water fully reacts with the flue gas to neutralize the sulfur dioxide in the flue gas, the flue gas moves upward and contacts the limestone, the residual sulfur dioxide in the flue gas is neutralized by the limestone, at the same time, the transmission shaft 24 drives the brush 42 to rotate, the brush 42 rotates to clean the bottom surface of the storage plate 41 to prevent the limestone from clogging the air holes on the storage plate 41, because the flue gas reacts with the ammonia water in the cavity of the cylinder 12, the flue gas may carry a lot of water when it is discharged, the hydrophobic plate can effectively block the water in the flue gas, leaving the water in the flue gas, reducing resource consumption. ;

[0022] Example 2

[0023] like Figures 1 to 4As shown, an energy-saving desulfurization device of the utility model is based on Example 1; the scraping mechanism 05 includes a scraper 51, two sets of reinforcing ribs 52, a drain pipe 53 and a valve 54, the top of the scraper 51 is connected to the bottom end of the transmission shaft 24, the two sets of reinforcing ribs 52 are installed on the scraper 51 and connected to the transmission shaft 24, the top of the drain pipe 53 is connected to the bottom end of the cylinder 12, and the valve 54 is installed on the drain pipe 53; when it is working, the staff first pulls the sealing door 44 through the handle 45 to open the feed port of the cylinder 12, and the stone The limestone is spread on the storage plate 41, and then the sealing door 44 is closed to prevent the smoke from overflowing. The smoke inlet pipe 13 is connected with the filter flue through the flange 14, and the smoke enters the cavity of the cylinder 12 through the smoke inlet pipe 13. The motor 21 is started, and the motor 21 drives the transmission shaft 24 to rotate through the reducer 22. The transmission shaft 24 drives the fan blades 25 to rotate. The fan blades 25 rotate and stir the smoke in the cavity of the cylinder 12, so that the smoke is fully mixed with the ammonia water, which enhances the desulfurization effect and accelerates the discharge of the smoke. The water inlet of the pump body 31 is connected with the ammonia water pool, and the reducer 22 is connected. The pump 31 is driven by the motor 22 to pump water. The pump 31 delivers the ammonia water to the water distributor 33 through the water pipe 32. The water distributor 33 distributes the ammonia water to multiple groups of nozzles 34. The nozzles 34 spray the ammonia water to make the ammonia water fully react with the flue gas to neutralize the sulfur dioxide in the flue gas. The flue gas moves upward and contacts the limestone. The residual sulfur dioxide in the flue gas is neutralized by the limestone. At the same time, the transmission shaft 24 drives the brush 42 to rotate. The brush 42 rotates to clean the bottom surface of the storage plate 41 to prevent the limestone from clogging the air holes on the storage plate 41. The flue gas reacts with ammonia water in the cavity, and a large amount of moisture may be carried by the flue gas when it is discharged. The hydrophobic plate can effectively block the moisture in the flue gas and retain the moisture in the flue gas, thereby reducing resource consumption. The transmission shaft 24 drives the scraper 51 to rotate, and the scraper 51 scrapes and cleans the inner wall of the cavity of the cylinder 12 to prevent impurities generated during the reaction from adhering to the inner wall of the cavity. The stability of the scraper 51 is enhanced by setting two sets of reinforcing ribs 52. When a certain amount of wastewater accumulates in the cavity of the cylinder 12, the valve 54 is opened, and the impurities are discharged along with the wastewater through the drain pipe 53.

[0024] The motor 21, the reducer 22 and the pump body 31 of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manuals, without the need for the technicians in the field to make creative efforts.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An energy-saving desulfurization device, comprising a reaction tube (01); characterized in that: The invention also comprises a stirring mechanism (02), a spraying mechanism (03), a desulfurization mechanism (04) and a scraping mechanism (05). The stirring mechanism (02) is installed on the reaction tube (01) to disturb the flue gas. The spraying mechanism (03) is installed on the stirring mechanism (02) to spray ammonia water for desulfurization. The desulfurization mechanism (04) is installed on the stirring mechanism (02) to further neutralize the sulfur dioxide in the flue gas by using limestone. The scraping mechanism (05) is installed on the stirring mechanism (02) to clean the inner wall.

2. An energy-saving desulfurization device as claimed in claim 1, characterized in that: The reaction tube (01) comprises four groups of supporting legs (11), a cylinder (12), a smoke inlet pipe (13), a flange (14), a drain hopper (15) and a smoke exhaust pipe (16). The bottom ends of the four groups of supporting legs (11) are connected to the ground, the bottom end of the cylinder (12) is connected to the top ends of the four groups of supporting legs (11), a cavity is arranged inside the cylinder (12), the smoke inlet pipe (13) is mounted on the cylinder (12) and is connected to the inside of the cavity of the cylinder (12), the flange (14) is mounted on the smoke inlet pipe (13), the bottom end of the drain hopper (15) is connected to the inside of the top end of the cylinder (12), and the bottom end of the smoke exhaust pipe (16) is connected to the inside of the top end of the drain hopper (15).

3. An energy-saving desulfurization device as claimed in claim 2, characterized in that: A drain plate is installed in the drain bucket (15).

4. An energy-saving desulfurization device as claimed in claim 2, characterized in that: The stirring mechanism (02) comprises a motor (21), a reducer (22), a sleeve (23), a transmission shaft (24) and a fan blade (25). The bottom end of the motor (21) is connected to the top end of the cylinder (12), the bottom end of the reducer (22) is connected to the top end of the cylinder (12), the sleeve (23) is installed in the cavity of the cylinder (12), the transmission shaft (24) is rotatably installed in the sleeve (23) and is longitudinally connected to the reducer (22), and the fan blade (25) is installed on the transmission shaft (24).

5. An energy-saving desulfurization device as claimed in claim 4, characterized in that: The spraying mechanism (03) comprises a pump body (31), a water delivery pipe (32), a water distributor (33), a plurality of nozzles (34) and a second sleeve (35). The bottom end of the pump body (31) is connected to the top end of the cylinder (12), the water delivery pipe (32) is mounted on the pump body (31), the water distributor (33) is mounted in the hollow of the cylinder (12), the plurality of nozzles (34) are mounted on the water distributor (33), and the second sleeve (35) is mounted on the water distributor (33) and sleeved on the transmission shaft (24).

6. An energy-saving desulfurization device as claimed in claim 4, characterized in that: The desulfurization mechanism (04) comprises a storage plate (41), a brush (42), a hinge (43), a sealing door (44) and a handle (45); the storage plate (41) is installed in the cavity of the cylinder (12) and a plurality of air holes are provided on the storage plate (41); the brush (42) is installed on the transmission shaft (24); a feed port is provided on the cylinder (12); the hinge (43) is installed at the feed port of the cylinder (12); the sealing door (44) is installed on the hinge (43); and the handle (45) is installed on the sealing door (44).

7. An energy-saving desulfurization device as claimed in claim 4, characterized in that: The scraping mechanism (05) comprises a scraper (51), two groups of reinforcing ribs (52), a drain pipe (53) and a valve (54); the top end of the scraper (51) is connected to the bottom end of the transmission shaft (24); the two groups of reinforcing ribs (52) are mounted on the scraper (51) and connected to the transmission shaft (24); the top end of the drain pipe (53) is connected to the bottom end of the cylinder (12); and the valve (54) is mounted on the drain pipe (53).

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