Desulfurization and dust removal equipment with graded filtration

Abstract

The utility model relates to the technical field of desulfurization and dust removal, in particular to desulfurization and dust removal equipment with a graded filtering function, which comprises a desulfurization tower, a breather pipe penetrates into the lower part of the outer wall of the desulfurization tower, a treatment kettle is fixed at the lower part in the desulfurization tower, and a mounting cylinder is mounted at the upper part in the desulfurization tower; a connecting shell is fixed to the bottom end of the mounting barrel, a cleaning mechanism used for cleaning dust is arranged at the bottom of the connecting shell, a containing mechanism used for containing dust is arranged above the outer wall of the desulfurizing tower, a powerful exhaust fan blows gas, dust, impurities and the like are generated through desulfurization, and after gas passes through a ventilation channel formed in the connecting shell, the gas can be exhausted through the ventilation channel; through the rotating rod and the guide mark, the scraping plate is attached to the filter screen to rotate, the adsorbed dust, impurities and the like are scraped off, and the scraping plate penetrates out of the communicating groove to achieve the dust removal effect, so that pollution caused by a large amount of dust and impurities in the desulfurization tower or influence on gas circulation caused by blockage of the filter screen are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization and dust removal, in particular to desulfurization and dust removal equipment with graded filtration. Background Art

[0002] Desulfurization generally refers to the process of removing sulfur from fuel before combustion and before flue gas emissions. It is one of the important technical measures to prevent and control air pollution. Therefore, before exhaust gas is discharged, it is necessary to treat the gas through desulfurization and dust removal equipment to meet the emission standards.

[0003] When the desulfurization and dust removal equipment is in use, the dust in the flue gas is filtered through the filter. The exhausted flue gas contains a large amount of moisture, which may adhere to the filter. Over time, corrosion may occur, which may easily lead to damage to the filter.

[0004] The existing patent (Announcement No.: CN218421632U) discloses a desulfurization and dust removal equipment, which effectively diverts the moisture in the gas through a separation frame. After the device is used, the heating plate can heat and dry the filter through a heat conduction plate, which can make the moisture in the filter evaporate quickly, avoid long-term adhesion of moisture and cause damage to the filter, and increase the service life of the filter.

[0005] In response to the above problems, although the solution given in the existing patent can process the moisture adsorbed by the filter and protect the filter, during long-term use, the flue gas may contain a large amount of dust and impurities, which exist in the desulfurization tower and adsorb on the filter. If it is not cleaned in time, it will clog the filter or pollute the desulfurization solution over time. Summary of the invention

[0006] The purpose of the utility model is to provide a desulfurization and dust removal equipment with graded filtration, which can avoid pollution caused by a large amount of dust impurities inside the desulfurization tower, or clogging of the filter screen affecting gas circulation, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization and dust removal device with graded filtration, comprising a desulfurization tower, a ventilation pipe is inserted into the lower part of the outer wall of the desulfurization tower, a treatment kettle is fixed at the lower part of the desulfurization tower, a mounting cylinder is installed at the upper part of the desulfurization tower, and a connecting shell is fixed at the bottom end of the mounting cylinder, a cleaning mechanism for cleaning dust is arranged at the bottom of the connecting shell, and a storage mechanism for storing dust is arranged at the upper part of the outer wall of the desulfurization tower;

[0008] The cleaning mechanism includes a powerful exhaust fan, which is embedded in the bottom end of the connecting shell. Two filter screens are embedded in the interior of the mounting cylinder, and a connecting groove is provided on the outer wall of the mounting cylinder corresponding to the position of the filter screen. A rotating rod passes through the interior of the two filter screens, and a guide mark is fixed to one end of the rotating rod that passes through the connecting shell, and scrapers are fixed on the outer wall of the rotating rod on both sides of the filter screen.

[0009] Preferably, the scraper is tightly fitted to the filter screen, and a rotating structure is formed between the scraper and the filter screen.

[0010] Preferably, an exhaust scoop is fixed to the top of the desulfurization tower, and a limiting plate is fixed to one end of the rotating rod passing through the exhaust scoop.

[0011] Preferably, a circulation device is provided on one side of the ventilation pipe below the outer wall of the desulfurization tower, and a spraying pipe is connected to the output end of the circulation device.

[0012] Preferably, the storage mechanism comprises a storage shell, the storage shell is fixed above the outer wall of the desulfurization tower, and the bottom end of the storage shell is connected to a conveying shell.

[0013] Preferably, the storage mechanism also includes a connecting frame, which is fixed to the outer wall of the rotating rod between the connecting shell and the filter screen, and a cleaning block is fixed to the axial end of the connecting frame away from the rotating rod, and the outer wall of the axial end of the connecting frame is rotatably connected to a roller.

[0014] Preferably, the storage shell is communicated with the installation cylinder through a connecting groove, and the storage shell is communicated with the conveying shell.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A powerful exhaust fan blows the gas and dust impurities produced by desulfurization. The ventilation channel set in the connecting shell can allow the gas to pass through, blocking the dust impurities from flowing back and thus polluting the desulfurization solution. Through the rotating rod and the guide mark, the scraper is allowed to rotate in contact with the filter screen to scrape off the adsorbed dust impurities and pass through the connecting groove to achieve a dust removal effect, thereby avoiding pollution caused by a large amount of dust impurities inside the desulfurization tower, or clogging of the filter screen affecting gas circulation;

[0017] 2. The connecting frame fits the connecting shell and rotates to scrape and push away dust and impurities. At the same time, the dust and impurities pushed by the scraper enter the storage shell for unified collection. The cleaning block is driven by the connecting frame to push the dust and impurities in the storage shell into the conveying shell and fall to the bottom. After being connected to the external sewage suction equipment, they are collected uniformly to avoid manual collection or cleaning that is too troublesome and labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the desulfurization tower of the utility model;

[0021] Figure 3 This is a structural diagram of the guide mark of the utility model

[0022] Figure 4 For the utility model Figure 3 A magnified view of middle;

[0023] Figure 5 It is a structural schematic diagram of the storage shell of the utility model.

[0024] Description of reference numerals:

[0025] 1. Desulfurization tower; 2. Ventilation pipe; 3. Treatment kettle; 4. Installation cylinder; 5. Connecting shell; 6. Cleaning mechanism; 601. Powerful exhaust fan; 602. Filter; 603. Rotating rod; 604. Guide mark; 605. Scraper; 606. Connecting groove; 7. Limit plate; 8. Exhaust hopper; 9. Circulation device; 10. Spraying pipe; 11. Storage mechanism; 1101. Storage shell; 1102. Conveying shell; 1103. Connecting frame; 1104. Cleaning block; 1105. Drum. DETAILED DESCRIPTION

[0026] 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.

[0027] The utility model provides a technical solution:

[0028] See also Figures 1 to 4A desulfurization and dust removal device with graded filtration comprises a desulfurization tower 1, a ventilation pipe 2 is inserted into the lower part of the outer wall of the desulfurization tower 1, a treatment kettle 3 is fixed at the lower part of the desulfurization tower 1, a mounting cylinder 4 is installed at the upper part of the desulfurization tower 1, a connecting shell 5 is fixed at the bottom end of the mounting cylinder 4, a cleaning mechanism 6 for cleaning dust is arranged at the bottom of the connecting shell 5, and a receiving mechanism 11 for receiving dust is arranged at the upper part of the outer wall of the desulfurization tower 1; the cleaning mechanism 6 comprises a powerful exhaust fan 601, the powerful exhaust fan 601 is embedded at the bottom end of the connecting shell 5, and two A filter screen 602 is provided, and a connecting groove 606 is provided on the outer wall of the mounting tube 4 at a position corresponding to the filter screen 602. A rotating rod 603 passes through the inside of the two filter screens 602, and a guide mark 604 is fixed to one end of the rotating rod 603 passing through the connecting shell 5. Scrapers 605 are fixed on both sides of the outer wall of the rotating rod 603 located on the filter screen 602. The scrapers 605 fit tightly with the filter screen 602, and a rotating structure is formed between the scrapers 605 and the filter screen 602. An exhaust bucket 8 is fixed on the top of the desulfurization tower 1, and a limiting plate 7 is fixed to one end of the rotating rod 603 passing through the exhaust bucket 8.

[0029] By adopting the above technical solution, firstly, the gas is introduced into the treatment kettle 3 at the bottom of the desulfurization tower 1 through the ventilation pipe 2, and the desulfurization solution inside the treatment kettle 3 is mixed and desulfurization is carried out. Then, the desulfurized gas is driven by the powerful exhaust fan 601 to enter the installation cylinder 4 through the connection shell 5. The smaller ventilation channel of the connection shell 5 can prevent the dust and impurities formed by desulfurization from flowing back into the treatment kettle 3, causing excessive pollution to the desulfurization solution mixture. Secondly, it is filtered through two groups of filter screens 602. The two groups of filter screens 602 have different pores for double-layer filtration, which can also play a grading role. The function improves the filtering effect, and the powerful exhaust fan 601 blows to let the guide mark 604 drive the rotating rod 603 to rotate, so that the scraper 605 can fit the corresponding filter screen 602 to rotate, avoiding the filter screen 602 to absorb dust and impurities to form blockage, which affects the gas circulation and dust removal efficiency. The scraper 605 has a semi-arc structure, which is convenient for pushing the scraped dust and impurities to move outward, so as to separate from the filter screen 602 through the connecting groove 606 to avoid clogging again, and the limit plate 7 is limited by the through hole of the exhaust bucket 8, so as to keep the rotating rod 603 stable in rotation.

[0030] Specifically, Figure 1 , Figure 2 and Figure 5As shown, a circulation device 9 is provided on one side of the ventilation pipe 2 below the outer wall of the desulfurization tower 1, and a spraying pipe 10 is connected to the output end of the circulation device 9. The storage mechanism 11 includes a storage shell 1101, which is fixed on the upper outer wall of the desulfurization tower 1, and a conveying shell 1102 is connected to the bottom end of the storage shell 1101. The storage mechanism 11 also includes a connecting frame 1103, which is fixed to the outer wall of the rotating rod 603 between the connecting shell 5 and the filter screen 602, and a cleaning block 1104 is fixed to the axial end of the connecting frame 1103 away from the rotating rod 603, and a roller 1105 is rotatably connected to the outer wall of the axial end of the connecting frame 1103. The storage shell 1101 is communicated with the installation cylinder 4 through the connecting groove 606, and the storage shell 1101 is communicated with the conveying shell 1102.

[0031] By adopting the above technical scheme, dust and impurities are pushed by the scraper 605 and enter the storage shell 1101 through the connecting groove 606. At the same time, the connecting frame 1103 is driven by the rotating rod 603 to rotate in close contact with the connecting shell 5 to scrape off the blocked dust and impurities, and then enter the storage shell 1101. The connecting frame 1103 axially drives the cleaning block 1104 located in the storage shell 1101 to rotate, and pushes the dust and impurities into the conveying shell 1102 and falls to the bottom. They are collected uniformly in a non-desulfurization state through an external adaptive sewage suction device. The roller 1105 makes the rotation process of the connecting frame 1103 smooth to avoid excessive friction affecting the power of the rotating rod 603. The circulation device 9 draws the desulfurization solution in the treatment kettle 3 through the pump and the pipeline, and transports it to the spray pipe 10 to be sprayed out through the atomizing nozzle, so that it can be combined with the sulfur element in the gas for treatment.

[0032] Working principle: The desulfurization tower 1 introduces the exhaust gas into the desulfurization solution inside the treatment kettle 3 through the ventilation pipe 2 for desulfurization treatment. The top exhaust bucket 8 can be connected to the pipeline to facilitate the transportation of the desulfurized gas to the next process. Two sets of filter screens 602 are installed and fixed through the installation tube 4, and the gas channel is narrowed through the connecting shell 5 to increase the power of the powerful exhaust fan 601, so that the guide mark 604 can be blown and the rotating rod 603 can be driven to rotate. The two sets of filter screens 602 have different pores and can filter dust and impurities in different levels. The limit plate 7 at the top of the rotating rod 603 is limited by the through hole of the exhaust bucket 8 to support the rotating rod 603. The filter screens 602 are all conical structures with small tops and large bottoms, and scrapers 6 are provided at the top and bottom. 05, driven by the rotating rod 603, it rotates, and at the same time drives the connecting frame 1103 to rotate in close contact with the connecting shell 5, so that the scraped dust enters the storage shell 1101 through the connecting groove 606 for unified collection, and the connecting frame 1103 drives the cleaning block 1104 when rotating, so as to push the dust into the conveying shell 1102 and fall to the lowest point, and the sewage suction equipment adapted to the pipeline connection is extracted during non-desulfurization operation, and the connecting frame 1103 improves the smoothness of rotation through the roller 1105, and the circulation device 9 is composed of a pump and a pipeline to extract the desulfurization solution and spray it through the spray pipe 10 and the atomizing nozzle, so as to fully adsorb the sulfur element in the gas, and an outlet pipe is arranged at the bottom of the treatment kettle 3 to facilitate the introduction or discharge of the internal desulfurization solution.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A desulfurization and dust removal device with graded filtration, comprising a desulfurization tower (1), characterized in that: A vent pipe (2) is inserted below the outer wall of the desulfurization tower (1), and a treatment kettle (3) is fixed below the interior of the desulfurization tower (1). A mounting cylinder (4) is installed above the interior of the desulfurization tower (1), and a connecting shell (5) is fixed at the bottom end of the mounting cylinder (4). A cleaning mechanism (6) for cleaning dust is provided at the bottom of the connecting shell (5), and a storage mechanism (11) for storing dust is provided above the outer wall of the desulfurization tower (1); The cleaning mechanism (6) comprises a powerful exhaust fan (601), which is embedded in the bottom end of the connecting shell (5), two filter screens (602) are embedded in the interior of the mounting tube (4), and a connecting groove (606) is provided at the position of the filter screens (602) corresponding to the outer wall of the mounting tube (4), a rotating rod (603) is inserted into the interior of the two filter screens (602), and a guide mark (604) is fixed to one end of the rotating rod (603) that penetrates into the connecting shell (5), and scrapers (605) are fixed on the outer wall of the rotating rod (603) on both sides of the filter screens (602).

2. The desulfurization and dust removal equipment with graded filtration according to claim 1 is characterized in that: The scraper (605) is tightly fitted to the filter screen (602), and a rotating structure is formed between the scraper (605) and the filter screen (602).

3. The desulfurization and dust removal equipment with graded filtration according to claim 1 is characterized in that: An exhaust hopper (8) is fixed to the top of the desulfurization tower (1), and a limiting plate (7) is fixed to one end of the rotating rod (603) that passes through the exhaust hopper (8).

4. The desulfurization and dust removal equipment with graded filtration according to claim 1 is characterized in that: A circulation device (9) is provided on one side of the ventilation pipe (2) below the outer wall of the desulfurization tower (1), and a spray pipe (10) is connected to the output end of the circulation device (9).

5. The desulfurization and dust removal equipment with graded filtration according to claim 1 is characterized in that: The storage mechanism (11) comprises a storage shell (1101), the storage shell (1101) is fixed above the outer wall of the desulfurization tower (1), and the bottom end of the storage shell (1101) is connected to a conveying shell (1102).

6. The desulfurization and dust removal equipment with graded filtration according to claim 1 is characterized in that: The storage mechanism (11) further comprises a connecting frame (1103), wherein the connecting frame (1103) is fixed to the outer wall of a rotating rod (603) located between the connecting shell (5) and the filter screen (602), and a cleaning block (1104) is fixed to the axial end of the connecting frame (1103) away from the rotating rod (603), and a roller (1105) is rotatably connected to the outer wall of the axial end of the connecting frame (1103).

7. The desulfurization and dust removal equipment with graded filtration according to claim 5 is characterized in that: The storage shell (1101) is in communication with the installation cylinder (4) via the communication groove (606), and the storage shell (1101) is in communication with the conveying shell (1102).

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