Desulfurization and dust removal equipment for metallurgical magnesium industry

Abstract

The utility model discloses desulfurization and dust removal equipment for the metallurgical magnesium industry, which relates to the technical field of metallurgical desulfurization and dust removal and comprises a desulfurization tower body, a sealing tower cover is arranged at the top end of the desulfurization tower body, a demisting plate is arranged in the sealing tower cover, one side of the desulfurization tower body is connected with a dust removal mechanism, and a desulfurization mechanism is arranged in the desulfurization tower body. The dust removal mechanism comprises a dust removal barrel, a conical filter screen is arranged in the dust removal barrel, and the top of the dust removal barrel is connected with the bottom of the desulfurization tower body through a connecting pipe; the desulfurization tower has the beneficial effects that waste gas generated by magnesium smelting can be conveyed into the desulfurization tower body through the dust removal barrel of the dust removal mechanism, and particle dust in the waste gas can be filtered through the conical filter screen in the dust removal barrel, so that the particle dust can be prevented from entering the desulfurization tower body and being mixed with desulfurization liquid to pollute the interior of the desulfurization tower body; and the dust removal barrel can collect filtered dust.

Description

Technical Field

[0001] The utility model relates to desulfurization and dust removal equipment, in particular to desulfurization and dust removal equipment for metallurgical magnesium industry, belonging to the technical field of metallurgical desulfurization and dust removal. Background Art

[0002] Metallurgy is a process of extracting metals from ores. Metallurgy includes refining metals from minerals, melting and recasting metals, and manufacturing various light and heavy industrial products. The metallurgical industry is an important part of any economic system. Magnesium smelting is a process of crushing, roasting and reducing magnesium concentrate to obtain high-purity metallic magnesium. The finished magnesium product can be used to manufacture equipment in aviation, aerospace, machinery and other industrial fields. In this process, the exhaust gas needs to be desulfurized and dusted through a desulfurization tower.

[0003] Its application number is "CN201820702208.1" and discloses "a high-efficiency cyclone desulfurization and dust removal integrated device", which "comprises a desulfurization tower, a high-efficiency centrifugal atomizing nozzle, a high-efficiency cyclone desulfurization and dust removal integrated device, and a common spraying device. The desulfurization tower comprises a desulfurization tower body, and the desulfurization tower body comprises a chimney and a flue gas inlet. A plurality of high-efficiency cyclone desulfurization and dust removal integrated devices are installed on the wall of the desulfurization tower body. The high-efficiency cyclone desulfurization and dust removal integrated device comprises a high-efficiency centrifugal atomizing nozzle, and the high-efficiency centrifugal atomizing nozzle passes through the wall of the desulfurization tower body and extends into the interior of the desulfurization tower. Multiple layers of common spraying devices are installed on the wall of the desulfurization tower body above the high-efficiency centrifugal atomizing nozzle." In the utility model, a plurality of high-efficiency centrifugal atomizing nozzles are installed around the desulfurization tower, and atomized slurry is sprayed out through the high-efficiency centrifugal atomizing nozzles to increase the coverage area of ​​the slurry in the desulfurization tower, thereby increasing the contact area between the flue gas and the slurry so that the flue gas and the slurry can fully contact and react, and the desulfurization efficiency can be improved without raising the height of the desulfurization tower.

[0004] However, the above method still has the following defects: when the flue gas is input through the flue gas inlet, it is difficult to filter the particulate matter in the flue gas. The particulate matter will enter the desulfurization tower with the airflow and mix with the desulfurization liquid, which will cause pollution to the interior of the desulfurization tower. It is also difficult to extend the flue gas transportation path and increase the reaction time between the flue gas and the desulfurization liquid. After the flue gas enters the desulfurization tower, it will rise to the chimney and be discharged from the chimney. The flue gas is prone to insufficient contact, which can easily lead to residual sulfur dioxide in the emitted flue gas. Utility Model Content

[0005] The utility model aims to provide a desulfurization and dust removal equipment for the metallurgical magnesium industry to solve the problem in the above-mentioned background technology that it is difficult to filter particulate matter in the flue gas, the particulate matter will enter the desulfurization tower with the air flow, mix with the desulfurization liquid, and cause pollution to the interior of the desulfurization tower.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization and dust removal equipment for the metallurgical magnesium industry, comprising a desulfurization tower body, a sealing tower cover is provided at the top of the desulfurization tower body, a demisting plate is provided inside the sealing tower cover, a dust removal mechanism is connected to one side of the desulfurization tower body, and a desulfurization mechanism is provided inside the desulfurization tower body; the dust removal mechanism comprises a dust removal bucket, a conical filter is provided inside the dust removal bucket, the top of the dust removal bucket is connected to the bottom of the desulfurization tower body through a connecting pipe, and a sealing cover is provided on the surface of the dust removal bucket; the desulfurization mechanism comprises a riser and a plurality of baffles, a plurality of baffles are fixedly provided on the surface of the riser, guide grooves are provided on the surfaces of the plurality of baffles, a plurality of nozzles are fixedly connected to the surface of the riser, a plurality of ear plates are fixedly provided on the top of one of the baffles, and one side of the plurality of ear plates is fixedly connected to the inner wall of the desulfurization tower body by bolts.

[0007] As a preferred technical solution of the utility model, a shaping ring is fixedly provided on the top of the conical filter, a mounting ring is fixedly provided on the inner wall of the top of the dust bucket, the bottom end of the shaping ring is fixedly connected to the bottom end of the mounting ring by bolts, and the bottom of the dust bucket is fixedly connected with an air intake pipe.

[0008] As a preferred technical solution of the utility model, a cleaning channel is opened on the surface of the dust removal bucket, the sealing cover is fixedly installed inside the cleaning channel by bolts, an inspection cover is fixedly installed on the top of the dust removal bucket by bolts, and the bottom end of the dust removal bucket is fixedly connected to a base plate.

[0009] As a preferred technical solution of the utility model, a plug is welded to the bottom end of the standpipe, and a liquid inlet pipe is fixedly connected to the top end of the standpipe via an elbow.

[0010] As a preferred technical solution of the utility model, a support ring is overlapped on the bottom end of one of the baffles, and the bottom end of the support ring is fixedly connected to the inner wall of the desulfurization tower body. A pipe groove is opened on the top of the desulfurization tower body, and a sealing ring is snap-connected to the pipe groove, and the sealing ring is sleeved on the surface of the liquid inlet pipe.

[0011] As a preferred technical solution of the utility model, a support ring and a connecting ring are respectively welded to the top of the desulfurization tower body and the bottom of the sealing tower cover, the support ring is fixedly connected to the connecting ring by bolts, an exhaust pipe is provided at the top of the sealing tower cover, a retaining ring is fixedly provided on the inner wall of the sealing tower cover, the bottom end of the retaining ring is fixedly connected to a reinforcement ring by bolts, and the defogger plate is welded to the inner wall of the reinforcement ring.

[0012] As a preferred technical solution of the utility model, a desulfurization liquid circulation pipe is fixedly connected to the bottom of the desulfurization tower body, and a fixed plate is fixedly connected to the bottom end of the desulfurization tower body.

[0013] Compared with the related art, the desulfurization and dust removal equipment for the metallurgical magnesium industry provided by the utility model has the following beneficial effects:

[0014] 1. The waste gas generated by magnesium smelting can be transported to the inside of the desulfurization tower through the dust removal barrel of the dust removal mechanism. The conical filter inside the dust removal barrel can filter the particulate dust in the waste gas, which can prevent the particulate dust from entering the desulfurization tower body and mixing with the desulfurization liquid to pollute the inside of the desulfurization tower body. The dust removal barrel can collect the filtered dust, and the conical filter can increase the ventilation area by relying on its inclined surface, and the conical filter is not easy to be blocked.

[0015] 2. The desulfurization liquid is transported through the desulfurization mechanism. Several nozzles of the desulfurization mechanism can spray the desulfurizer evenly. The gas can be diverted through the baffle. When the gas rises, the baffle cooperates with the staggered guide groove to extend the gas transportation path, thereby improving the contact effect between the exhaust gas and the desulfurizer, increasing the reaction time between the flue gas and the desulfurization liquid, avoiding the phenomenon of insufficient contact, improving the desulfurization quality, and not easily producing residual sulfur dioxide. The water molecules in the gas can be filtered through the demister plate to ensure the dryness of the gas during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the desulfurization tower body of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the dust removal bucket of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the desulfurization mechanism of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the demister plate of the utility model.

[0021] In the figure: 1. desulfurization tower body; 2. dust removal mechanism; 201. dust removal barrel; 202. conical filter; 203. shaping ring; 204. connecting pipe; 205. air inlet pipe; 206. bottom plate; 207. cleaning channel; 208. sealing cover; 209. inspection cover; 2010. mounting ring; 3. desulfurization mechanism; 301. vertical pipe; 302. baffle; 303. guide groove; 304. nozzle; 305. supporting ring; 306. elbow; 307. liquid inlet pipe; 308. ear plate; 309. plug; 4. fixing plate; 5. desulfurization liquid circulation pipe; 6. sealing ring; 7. supporting ring; 8. connecting ring; 9. sealing tower cover; 10. exhaust pipe; 11. defogger plate; 12. reinforcement ring; 13. retaining ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] See also Figure 1-5 The utility model provides a desulfurization and dust removal equipment for the metallurgical magnesium industry, including a desulfurization tower body 1, a sealing tower cover 9 is provided at the top of the desulfurization tower body 1, a demisting plate 11 is provided inside the sealing tower cover 9, a dust removal mechanism 2 is connected to one side of the desulfurization tower body 1, a desulfurization mechanism 3 is provided inside the desulfurization tower body 1, a support ring 7 and a connecting ring 8 are welded at the top of the desulfurization tower body 1 and the bottom of the sealing tower cover 9 respectively, the support ring 7 is fixedly connected to the connecting ring 8 by bolts, an exhaust pipe 10 is provided at the top of the sealing tower cover 9, a retaining ring 13 is fixedly provided on the inner wall of the sealing tower cover 9, a reinforcement ring 12 is fixedly connected to the bottom end of the retaining ring 13 by bolts, the demisting plate 11 is welded to the inner wall of the reinforcement ring 12, a desulfurization liquid circulation pipe 5 is fixedly connected to the bottom of the desulfurization tower body 1, a fixing plate 4 is fixedly connected to the bottom end of the desulfurization tower body 1, the sealing tower cover 9 is conveniently installed and removed through the support ring 7 and the connecting ring 8, and the mist plate 11 is conveniently installed and removed through the retaining ring 13;

[0025] The dust removal mechanism 2 includes a dust removal bucket 201, a conical filter screen 202 is provided inside the dust removal bucket 201, the top of the dust removal bucket 201 is connected to the bottom of the desulfurization tower body 1 through a connecting pipe 204, and a sealing cover 208 is provided on the surface of the dust removal bucket 201, and dust in the gas can be filtered through the conical filter screen 202;

[0026] A shaping ring 203 is fixedly provided at the top of the conical filter 202, a mounting ring 2010 is fixedly provided on the inner wall of the top of the dust collecting barrel 201, the bottom end of the shaping ring 203 is fixedly connected to the bottom end of the mounting ring 2010 by bolts, and an air intake pipe 205 is fixedly connected to the bottom of the dust collecting barrel 201. The shaping ring 203 can reinforce the top of the conical filter 202, thereby improving the anti-deformation ability of the conical filter 202, and exhaust gas can be input into the dust collecting barrel 201 through the air intake pipe 205;

[0027] A cleaning channel 207 is provided on the surface of the dust bucket 201, and a sealing cover 208 is fixedly installed inside the cleaning channel 207 by bolts. An inspection cover 209 is fixedly installed on the top of the dust bucket 201 by bolts, and a bottom plate 206 is fixedly connected to the bottom end of the dust bucket 201. By opening the inspection cover 209, dust can be cleaned from the cleaning channel 207.

[0028] Embodiment 2:

[0029] The desulfurization mechanism 3 includes a riser 301 and a plurality of baffles 302. The surface of the riser 301 is fixedly provided with a plurality of baffles 302. The surfaces of the plurality of baffles 302 are provided with guide grooves 303. The surface of the riser 301 is fixedly connected with a plurality of nozzles 304. The top of one of the baffles 302 is fixedly provided with a plurality of ear plates 308. One side of the plurality of ear plates 308 is fixedly connected with the inner wall of the desulfurization tower body 1 by bolts. The desulfurizer can be transported through the riser 301. The plurality of nozzles 304 can spray the desulfurizer evenly. The gas can be guided through the baffles 302 and the guide grooves 303, thereby extending the gas transportation path.

[0030] A plug 309 is welded to the bottom end of the standpipe 301, and a liquid inlet pipe 307 is fixedly connected to the top end of the standpipe 301 through an elbow 306. The standpipe 301 can be connected to the liquid inlet pipe 307 through the elbow 306, and the desulfurizer can be input through the liquid inlet pipe 307. The plug 309 can block the bottom end of the standpipe 301 to prevent the desulfurizer from flowing out through the bottom end of the standpipe 301.

[0031] A support ring 305 is overlapped on the bottom end of one of the baffles 302, and the bottom end of the support ring 305 is fixedly connected to the inner wall of the desulfurization tower body 1. A pipe groove is opened on the top of the desulfurization tower body 1, and a sealing ring 6 is snap-connected to the pipe groove. The sealing ring 6 is sleeved on the surface of the liquid inlet pipe 307. The support ring 305 can support the bottom end of one of the baffles 302, and the firmness of the baffle 302 and the vertical pipe 301 can be maintained. The liquid inlet pipe 307 can be inserted through the pipe groove, and the sealing ring 6 can seal between the pipe groove and the liquid inlet pipe 307.

[0032] When in use, the staff first inputs the waste gas generated by magnesium smelting through the air inlet pipe 205, and the waste gas can enter the dust removal barrel 201. The conical filter 202 inside the dust removal barrel 201 can filter the particulate dust in the waste gas. The dust removal barrel 201 can collect the filtered dust. The gas after dust removal can enter the desulfurization tower body 1 through the connecting pipe 204, and then the desulfurization liquid is input through the liquid inlet pipe 307. The vertical pipe 301 can evenly spray the desulfurizer through a plurality of nozzles 304. During the rising process of the gas, the baffle 302 cooperates with the staggered guide groove 303 to extend the gas transportation path, increase the reaction time between the flue gas and the desulfurization liquid, avoid the phenomenon of insufficient contact, and improve the desulfurization quality of the waste gas. When the gas rises to the demisting plate 11, The demister plate 11 can remove the mist in the flue gas, and the gas after desulfurization and dust removal is discharged through the exhaust pipe 10. During this process, the support ring 305 and the ear plate 308 can support the baffle 302 and maintain the stability of the baffle 302. After the desulfurizer falls into the desulfurization tower body 1, the desulfurization liquid circulation pipe 5 can discharge the desulfurization liquid, and the desulfurization liquid can be recycled. After the desulfurization is completed, the staff opens the sealing cover 208, and the particulate dust can be cleaned through the cleaning channel 207. The inspection cover 209 can be opened to take out the conical filter 202. The staff opens the sealing tower cover 9, loosens the bolts that fix the ear plate 308, and then removes the elbow 306 and the liquid inlet pipe 307. The baffle 302 and the riser 301 can be taken out for easy maintenance and replacement.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization and dust removal device for the metallurgical magnesium industry, comprising a desulfurization tower body (1), characterized in that: The top of the desulfurization tower body (1) is provided with a sealing tower cover (9), the interior of the sealing tower cover (9) is provided with a demisting plate (11), one side of the desulfurization tower body (1) is connected with a dust removal mechanism (2), and the interior of the desulfurization tower body (1) is provided with a desulfurization mechanism (3); The dust removal mechanism (2) comprises a dust removal bucket (201), a conical filter screen (202) is provided inside the dust removal bucket (201), the top of the dust removal bucket (201) is connected to the bottom of the desulfurization tower body (1) via a connecting pipe (204), and a sealing cover (208) is provided on the surface of the dust removal bucket (201); The desulfurization mechanism (3) comprises a vertical pipe (301) and a plurality of baffles (302), the surface of the vertical pipe (301) being fixedly provided with the plurality of baffles (302), the surfaces of the plurality of baffles (302) being provided with guide grooves (303), the surface of the vertical pipe (301) being fixedly connected with a plurality of nozzles (304), the top end of one of the baffles (302) being fixedly provided with a plurality of ear plates (308), and one side of the plurality of ear plates (308) being fixedly connected to the inner wall of the desulfurization tower body (1) by means of bolts.

2. The desulfurization and dust removal equipment for the metallurgical magnesium industry according to claim 1, characterized in that: A shaping ring (203) is fixedly provided at the top of the conical filter (202), a mounting ring (2010) is fixedly provided on the inner wall of the top of the dust removal barrel (201), the bottom end of the shaping ring (203) is fixedly connected to the bottom end of the mounting ring (2010) by bolts, and the bottom of the dust removal barrel (201) is fixedly connected to an air intake pipe (205).

3. The desulfurization and dust removal equipment for the metallurgical magnesium industry according to claim 1, characterized in that: A cleaning channel (207) is provided on the surface of the dust removal bucket (201); the sealing cover (208) is fixedly installed inside the cleaning channel (207) by means of bolts; an inspection cover (209) is fixedly installed on the top of the dust removal bucket (201) by means of bolts; and a bottom plate (206) is fixedly connected to the bottom end of the dust removal bucket (201).

4. The desulfurization and dust removal equipment for the metallurgical magnesium industry according to claim 1, characterized in that: A plug (309) is welded to the bottom end of the vertical pipe (301), and a liquid inlet pipe (307) is fixedly connected to the top end of the vertical pipe (301) via an elbow (306).

5. The desulfurization and dust removal equipment for the metallurgical magnesium industry according to claim 4, characterized in that: A support ring (305) is overlapped at the bottom end of one of the baffles (302), and the bottom end of the support ring (305) is fixedly connected to the inner wall of the desulfurization tower body (1). A pipe groove is provided on the top of the desulfurization tower body (1), and a sealing ring (6) is snap-connected to the pipe groove, and the sealing ring (6) is sleeved on the surface of the liquid inlet pipe (307).

6. The desulfurization and dust removal equipment for the metallurgical magnesium industry according to claim 1, characterized in that: A support ring (7) and a connection ring (8) are welded to the top of the desulfurization tower body (1) and the bottom of the sealing tower cover (9), respectively; the support ring (7) is fixedly connected to the connection ring (8) by bolts; an exhaust pipe (10) is provided at the top of the sealing tower cover (9); a retaining ring (13) is fixedly provided on the inner wall of the sealing tower cover (9); the bottom end of the retaining ring (13) is fixedly connected to a reinforcement ring (12) by bolts; and the demister plate (11) is welded to the inner wall of the reinforcement ring (12).

7. The desulfurization and dust removal equipment for the metallurgical magnesium industry according to claim 1, characterized in that: A desulfurization liquid circulation pipe (5) is fixedly connected to the bottom of the desulfurization tower body (1), and a fixing plate (4) is fixedly connected to the bottom end of the desulfurization tower body (1).

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