Spraying device for wet electrostatic dust collection and desulfurization

Abstract

The utility model relates to the technical field of flue gas treatment, and discloses a spraying device for wet electrostatic dust removal and desulfurization, which comprises a spraying bin, a bin door is hinged on the front surface of the spraying bin, a connecting bin is fixedly arranged on the bottom surface of the spraying bin, and a collecting and recycling mechanism is arranged in the connecting bin. A dust removal and desulfurization mechanism is arranged in the spraying bin, and the collecting and recycling mechanism comprises a collecting part and a connecting part. The motor drives the rotating rod and the elliptical block to rotate, so that the dust collecting plate reciprocates in the vertical direction and shakes, dust and compounds containing sulfate and the like attached to the dust collecting plate can be shaken off, the problem of blockage or difficulty in dust cleaning caused by long-time deposition is avoided, the dust cleaning efficiency is improved, and the air cylinder is started to drive the dust collecting plate to rotate. And the sealing plate can be automatically driven to deflect, so that automatic opening of the upper end of the connecting bin is achieved, and after the upper end of the connecting bin is opened, dust and compounds containing sulfate and the like can smoothly enter the connecting bin to be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a spray device for wet electrostatic dust removal and desulfurization. Background Art

[0002] Flue gas is a gas produced during the combustion process, which contains a large amount of pollutants such as carbon dioxide, carbon monoxide, nitrogen oxides, sulfides, particulate matter and heavy metals. These pollutants have a serious impact on the environment and human health, so flue gas needs to be treated. There are many flue gas treatment technologies. According to different treatment principles and methods, they can be divided into wet, dry, biological, electrochemical and combined flue gas treatment technologies.

[0003] In the flue gas treatment process, the main focus is on effectively treating dust and harmful gases such as sulfur dioxide in the flue gas. After the dust removal and desulfurization process, the flue gas usually undergoes spraying treatment to further purify the flue gas. However, the dust and compounds such as sulfates generated during the spraying process tend to deposit on the dust collecting plates. Over time, these deposits will gradually accumulate, which may cause the dust collecting plates to become blocked or the cleaning work becomes extremely difficult.

[0004] Therefore, a spray device for wet electrostatic dust removal and desulfurization is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a spray device for wet electrostatic dust removal and desulfurization to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a spray device for wet electrostatic dust removal and desulfurization, comprising a spray chamber, a chamber door hingedly provided on the front of the spray chamber, a connecting chamber fixedly provided on the bottom of the spray chamber, a collection and recovery mechanism provided inside the connecting chamber, and a dust removal and desulfurization mechanism provided inside the spray chamber;

[0007] The collection and recovery mechanism includes a collection part and a connection part;

[0008] The dust removal and desulfurization mechanism includes a dust removal part and a desulfurization part.

[0009] Preferably, the collecting part includes a positioning bin, the outer side of the positioning bin is fixedly connected to the connecting bin, a dust collecting plate is provided inside the positioning bin, the dust collecting plate is slidably connected to the inner wall of the positioning bin, a filter is provided inside the dust collecting plate, and the dust collecting plate collects dust and compounds containing sulfates.

[0010] Preferably, a rotating rod is provided under the dust collecting plate, and the left and right ends of the rotating rod pass through the positioning warehouse and are connected to the positioning warehouse bearings. An elliptical block is provided on the fixed sleeve on the outer side of the rotating rod, and the upper end of the elliptical block contacts the lower end of the dust collecting plate. A motor is fixedly provided on the right side of the connecting warehouse, and the output shaft of the motor passes through the connecting warehouse and the positioning warehouse in sequence and is fixedly connected to the rotating rod. The motor drives the rotating rod and the elliptical block to rotate, thereby causing the dust collecting plate to perform reciprocating motion in the vertical direction and shake.

[0011] Preferably, the connecting part includes a sealing plate, which is hinged to the positioning bin, and two sealing plates are provided on the left and right sides of the sealing plate. A connecting frame is fixedly provided on the bottom surface of the sealing plate, and a moving rod is provided on the bearing sleeve at the lower end of the connecting frame. Two positioning frames are provided in front and behind the moving rod, and a positioning groove is provided on the front side of the positioning frame. The front and rear ends of the moving rod are respectively located inside the positioning grooves adjacent to each other and are slidably connected to the inner walls of the positioning grooves adjacent to each other.

[0012] Preferably, a cylinder is fixedly provided on the inner wall of the connecting bin, the top surface of the cylinder output shaft is fixedly connected to the bottom surface of the rear positioning frame, limit rods are fixedly provided on the left and right sides of the positioning frame, a limit frame is provided on the outside of the limit rod, the limit frame is fixedly connected to the inner wall of the connecting bin, the lower end of the limit rod is located in the limit frame and is slidably connected to the inner wall of the limit frame, and starting the cylinder can automatically drive the sealing plate to deflect, thereby realizing automatic opening of the upper end of the connecting bin.

[0013] Preferably, the dust removal part includes a placement rack, which is located inside the spray bin, and a sliding groove is provided on the inner wall of the spray bin. The left and right ends of the placement rack are respectively located inside the sliding grooves adjacent to each other and are slidably connected to the inner walls of the sliding grooves adjacent to each other. An electromagnetic rod is fixedly installed inside the placement rack, and the electric field generated by the electromagnetic rod can effectively attract dust particles in the flue gas.

[0014] Preferably, the desulfurization unit includes a water tank, a water pump is installed in front of the water tank, a water pipe is installed on the upper end of the water pump, and a water outlet tank is installed on the upper end of the water pipe.

[0015] Preferably, a placement bin is fixedly provided on the bottom surface of the water outlet bin, the placement bin is fixedly connected to the spray bin, a connecting pipe is provided inside the placement bin, the upper end of the connecting pipe passes through the placement bin and is fixedly connected to the water outlet bin, the connecting pipe and the water outlet bin are communicated with each other, a spiral nozzle is installed at the lower end of the connecting pipe, and the water pump drives the water in the water tank into the connecting pipe through the water pipe and the water outlet bin in sequence, and then discharges it from the spiral nozzle in the form of water mist.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the spray device for wet electrostatic dust removal and desulfurization,

[0017] 1) The motor drives the rotating rod and the elliptical block to rotate, thereby causing the dust collecting plate to reciprocate in the vertical direction and vibrate, which can shake off the dust and compounds containing sulfates and other compounds attached to the dust collecting plate, avoiding blockage or cleaning difficulties caused by long-term deposition, and improving the cleaning efficiency. Starting the cylinder can automatically drive the sealing plate to deflect, thereby realizing the automatic opening of the upper end of the connecting bin. When the upper end of the connecting bin is opened, the dust and compounds containing sulfates and other compounds can smoothly enter the connecting bin for collection.

[0018] 2) The electric field generated by the electromagnetic rod can effectively attract dust particles in the flue gas, causing them to move downward quickly and deposit, thereby greatly improving the dust removal efficiency. The water pump transfers the water in the water tank into the connecting pipe through the water pipe and the water outlet tank in turn, and then discharges it from the spiral nozzle in the form of water mist. When the water mist comes into contact with acidic gases such as sulfur dioxide in the flue gas, a chemical reaction will occur to generate compounds such as sulfate, thereby reducing the sulfur dioxide content in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a three-dimensional view of the collection and recovery mechanism of the utility model;

[0021] Figure 3 This is a partial three-dimensional view of the collection and recovery mechanism of the utility model;

[0022] Figure 4 This is a three-dimensional view of the dust removal and desulfurization mechanism of the utility model;

[0023] Figure 5 It is a partial three-dimensional view of the dust removal and desulfurization mechanism of the utility model.

[0024] In the figure: 1 spray chamber, 2 chamber door, 3 connecting chamber, 4 collection and recovery mechanism, 41 positioning chamber, 42 dust collecting plate, 43 rotating rod, 44 elliptical block, 45 motor, 46 sealing plate, 47 connecting frame, 48 moving rod, 49 positioning frame, 410 cylinder, 411 limiting rod, 412 limiting frame, 5 dust removal and desulfurization mechanism, 51 placement frame, 52 electromagnetic rod, 53 water tank, 54 water pump, 55 water pipe, 56 water outlet chamber, 57 placement chamber, 58 connecting pipe, 59 spiral nozzle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1:

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a spray device for wet electrostatic dust removal and desulfurization, comprising a spray bin 1, a bin door 2 hingedly provided on the front of the spray bin 1, a connecting bin 3 fixedly provided on the bottom of the spray bin 1, a collection and recovery mechanism 4 provided inside the connecting bin 3, and a dust removal and desulfurization mechanism 5 provided inside the spray bin 1;

[0028] The collecting and recycling mechanism 4 includes a collecting portion and a connecting portion;

[0029] The dust removal and desulfurization mechanism 5 includes a dust removal part and a desulfurization part.

[0030] The collecting part includes a positioning bin 41 , the outer side of the positioning bin 41 is fixedly connected to the connecting bin 3 , a dust collecting plate 42 is provided inside the positioning bin 41 , the dust collecting plate 42 is slidably connected to the inner wall of the positioning bin 41 , and a filter is provided inside the dust collecting plate 42 .

[0031] A rotating rod 43 is provided below the dust collecting plate 42. The left and right ends of the rotating rod 43 pass through the positioning bin 41 and are connected to the bearings of the positioning bin 41. An elliptical block 44 is fixed on the outer side of the rotating rod 43. The upper end of the elliptical block 44 contacts the lower end of the dust collecting plate 42. A motor 45 is fixedly provided on the right side of the connecting bin 3. The output shaft of the motor 45 passes through the connecting bin 3 and the positioning bin 41 in sequence and is fixedly connected to the rotating rod 43.

[0032] The connecting part includes a sealing plate 46, which is hinged to the positioning bin 41. There are two sealing plates 46 on the left and right. A connecting frame 47 is fixedly provided on the bottom surface of the sealing plate 46. A moving rod 48 is provided on the bearing sleeve at the lower end of the connecting frame 47. Two positioning frames 49 are provided in front and behind the moving rod 48. A positioning groove is provided on the front of the positioning frame 49. The front and rear ends of the moving rod 48 are respectively located inside the adjacent positioning grooves and are slidably connected to the inner walls of the adjacent positioning grooves.

[0033] A cylinder 410 is fixedly installed on the inner wall of the connecting warehouse 3, and the top surface of the output shaft of the cylinder 410 is fixedly connected to the bottom surface of the rear positioning frame 49. Limit rods 411 are fixedly provided on the left and right sides of the positioning frame 49. A limit frame 412 is provided on the outside of the limit rod 411. The limit frame 412 is fixedly connected to the inner wall of the connecting warehouse 3, and the lower end of the limit rod 411 is located in the limit frame 412 and is slidably connected to the inner wall of the limit frame 412.

[0034] Furthermore, in this embodiment, the motor 45 is started, and the motor 45 drives the rotating rod 43 and the elliptical block 44 to rotate. When the elliptical block 44 rotates, it drives the dust collecting plate 42 to perform a reciprocating motion in the vertical direction, causing the dust collecting plate 42 to shake. The dust and compounds containing sulfates and the like on the dust collecting plate 42 move downward from the filter screen, and the cylinder 410 is started. The cylinder 410 drives the positioning frame 49 to move, and the positioning frame 49 drives the connecting frame 47 to move. The connecting frame 47 drives the sealing plate 46 to deflect, so that the upper end of the connecting chamber 3 is opened, and the dust and compounds containing sulfates and the like can enter the connecting chamber 3 and be collected;

[0035] Furthermore, in this embodiment, the motor 45 drives the rotating rod 43 and the elliptical block 44 to rotate, thereby causing the dust collecting plate 42 to reciprocate in the vertical direction and shake, which can shake off the dust and compounds containing sulfates and the like attached to the dust collecting plate 42, avoiding blockage or difficulty in cleaning caused by long-term deposition, and improving the cleaning efficiency. Starting the cylinder 410 can automatically drive the sealing plate 46 to deflect, thereby realizing the automatic opening of the upper end of the connecting chamber 3. When the upper end of the connecting chamber 3 is opened, the dust and compounds containing sulfates and the like can smoothly enter the connecting chamber 3 for collection;

[0036] Example 2:

[0037] See also Figure 1-Figure 5 , and on the basis of Example 1, it is further obtained that: the dust removal part includes a placement rack 51, the placement rack 51 is located inside the spray bin 1, a sliding groove is opened on the inner wall of the spray bin 1, the left and right ends of the placement rack 51 are respectively located inside the adjacent sliding grooves and are slidably connected to the inner walls of the adjacent sliding grooves, and an electromagnetic rod 52 is fixedly installed inside the placement rack 51.

[0038] The desulfurization unit includes a water tank 53 , a water pump 54 is installed in front of the water tank 53 , a water pipe 55 is installed on the upper end of the water pump 54 , and a water outlet tank 56 is installed on the upper end of the water pipe 55 .

[0039] A placement bin 57 is fixedly provided on the bottom surface of the water outlet bin 56, and the placement bin 57 is fixedly connected to the spray bin 1. A connecting pipe 58 is provided inside the placement bin 57. The upper end of the connecting pipe 58 passes through the placement bin 57 and is fixedly connected to the water outlet bin 56. The connecting pipe 58 and the water outlet bin 56 are communicated with each other, and a spiral nozzle 59 is installed at the lower end of the connecting pipe 58.

[0040] Furthermore, in this embodiment, the flue gas is discharged into the spray chamber 1, and the electromagnetic rod 52 is started. The electric field generated by the electromagnetic rod 52 attracts the dust in the flue gas and causes it to move downward. Then, the water pump 54 is started. The water pump 54 sequentially pumps the water in the water tank 53 into the connecting pipe 58 through the water pipe 55 and the water outlet chamber 56. The water is then discharged from the spiral nozzle 59 in the form of water mist. The water mist reacts chemically with acidic gases such as sulfur dioxide in the flue gas to generate compounds such as sulfates, which move downward with the water mist. The dust and compounds containing sulfates fall onto the dust collecting plate 42.

[0041] Furthermore, the electric field generated by the electromagnetic rod 52 in this embodiment can effectively attract dust particles in the flue gas, causing them to move downward rapidly and deposit, thereby greatly improving the dust removal efficiency. The water pump 54 sequentially conveys the water in the water tank 53 into the connecting pipe 58 through the water pipe 55 and the water outlet tank 56, and then discharges it from the spiral nozzle 59 in the form of water mist. When the water mist comes into contact with acidic gases such as sulfur dioxide in the flue gas, a chemical reaction occurs to generate compounds such as sulfate, thereby reducing the sulfur dioxide content in the flue gas.

[0042] When in use, the flue gas is discharged into the spray chamber 1, and the electromagnetic rod 52 is started. The electric field generated by the electromagnetic rod 52 attracts the dust in the flue gas and makes it move downward. Then the water pump 54 is started. The water pump 54 sequentially passes the water in the water tank 53 through the water pipe 55 and the water outlet chamber 56 into the connecting pipe 58, and then is discharged from the spiral nozzle 59 in the form of water mist. The water mist reacts chemically with the acidic gas such as sulfur dioxide in the flue gas to generate compounds such as sulfate and move downward with the water mist. The dust and compounds containing sulfate fall on the dust collecting plate 42, and the spray chamber 54 is started. The motor 45 is started, and the motor 45 drives the rotating rod 43 and the elliptical block 44 to rotate. When the elliptical block 44 rotates, it drives the dust collecting plate 42 to perform reciprocating motion in the vertical direction, causing the dust collecting plate 42 to shake. The dust and compounds containing sulfates and the like on the dust collecting plate 42 move downward from the filter screen, and the cylinder 410 is started. The cylinder 410 drives the positioning frame 49 to move, and the positioning frame 49 drives the connecting frame 47 to move. The connecting frame 47 drives the sealing plate 46 to deflect, so that the upper end of the connecting bin 3 is opened, and the dust and compounds containing sulfates and the like can enter the connecting bin 3 and be collected.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spraying device for wet electrostatic dust removal and desulfurization, comprising a spraying chamber (1), characterized in that: The front of the spray bin (1) is hingedly provided with a bin door (2), the bottom of the spray bin (1) is fixedly provided with a connection bin (3), a collection and recovery mechanism (4) is provided inside the connection bin (3), and a dust removal and desulfurization mechanism (5) is provided inside the spray bin (1); The collecting and recycling mechanism (4) comprises a collecting portion and a connecting portion; The dust removal and desulfurization mechanism (5) comprises a dust removal part and a desulfurization part.

2. A spraying device for wet electrostatic dust removal and desulfurization according to claim 1, characterized in that: The collecting portion comprises a positioning bin (41), the outer side of the positioning bin (41) is fixedly connected to the connecting bin (3), a dust collecting plate (42) is provided inside the positioning bin (41), the dust collecting plate (42) is slidably connected to the inner wall of the positioning bin (41), and a filter is provided inside the dust collecting plate (42).

3. A spraying device for wet electrostatic dust removal and desulfurization according to claim 2, characterized in that: A rotating rod (43) is provided below the dust collecting plate (42), and the left and right ends of the rotating rod (43) pass through the positioning chamber (41) and are connected to the bearings of the positioning chamber (41). An elliptical block (44) is fixedly sleeved on the outer side of the rotating rod (43), and the upper end of the elliptical block (44) contacts the lower end of the dust collecting plate (42). A motor (45) is fixedly provided on the right side of the connecting chamber (3), and the output shaft of the motor (45) passes through the connecting chamber (3) and the positioning chamber (41) in sequence and is fixedly connected to the rotating rod (43).

4. The spraying device for wet electrostatic dust removal and desulfurization according to claim 1, characterized in that: The connecting portion includes a sealing plate (46), the sealing plate (46) is hinged to the positioning chamber (41), two sealing plates (46) are provided on the left and right, a connecting frame (47) is fixedly provided on the bottom surface of the sealing plate (46), a moving rod (48) is provided on the bearing sleeve at the lower end of the connecting frame (47), two positioning frames (49) are provided in front and behind the moving rod (48), a positioning groove is provided on the front of the positioning frame (49), and the front and rear ends of the moving rod (48) are respectively located in the adjacent positioning grooves and are slidably connected to the inner wall of the adjacent positioning grooves.

5. The spraying device for wet electrostatic dust removal and desulfurization according to claim 4, characterized in that: A cylinder (410) is fixedly provided on the inner wall of the connecting bin (3); the top surface of the output shaft of the cylinder (410) is fixedly connected to the bottom surface of the rear positioning frame (49); limiting rods (411) are fixedly provided on both the left and right sides of the positioning frame (49); a limiting frame (412) is provided outside the limiting rod (411); the limiting frame (412) is fixedly connected to the inner wall of the connecting bin (3); the lower end of the limiting rod (411) is located in the limiting frame (412) and is slidably connected to the inner wall of the limiting frame (412).

6. The spraying device for wet electrostatic dust removal and desulfurization according to claim 1, characterized in that: The dust removal part comprises a placement rack (51), the placement rack (51) is located inside the spray bin (1), a sliding groove is provided on the inner wall of the spray bin (1), the left and right ends of the placement rack (51) are respectively located inside adjacent sliding grooves and are slidably connected to the inner walls of the adjacent sliding grooves, and an electromagnetic rod (52) is fixedly installed inside the placement rack (51).

7. The spraying device for wet electrostatic dust removal and desulfurization according to claim 1, characterized in that: The desulfurization unit includes a water tank (53), a water pump (54) is installed in front of the water tank (53), a water delivery pipe (55) is installed on the upper end of the water pump (54), and a water outlet tank (56) is installed on the upper end of the water delivery pipe (55).

8. The spraying device for wet electrostatic dust removal and desulfurization according to claim 7, characterized in that: A placement chamber (57) is fixedly provided on the bottom surface of the water outlet chamber (56), the placement chamber (57) is fixedly connected to the spray chamber (1), a connecting pipe (58) is provided inside the placement chamber (57), the upper end of the connecting pipe (58) passes through the placement chamber (57) and is fixedly connected to the water outlet chamber (56), the connecting pipe (58) and the water outlet chamber (56) are communicated with each other, and a spiral nozzle (59) is installed at the lower end of the connecting pipe (58).

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