Desulfurization and dust removal spraying device

Abstract

The utility model relates to the field of flue gas desulfurization, and discloses a desulfurization and dust removal spraying device which comprises a treatment box, an exhaust pipe is arranged at the top of the treatment box, a liquid discharge pipe is arranged at one end of the treatment box, a primary treatment mechanism is arranged on one side of the treatment box, and a spraying mechanism is arranged in an inner cavity of the treatment box. According to the desulfurization and dust removal spraying device, after flue gas reacts with reaction liquid, residues are filtered by the filter screen cylinder, the residues are scraped to enter a collecting shell from a notch under the action of a guide scraping plate, introduction of the flue gas does not need to be stopped during cleaning, and the desulfurization and dust removal spraying device is simple in structure and convenient to use. The collecting shell is moved upwards to the top of the moving groove through the electric push rod, the second groove opening is in butt joint with the groove opening, collected residues can be discharged from the top discharging groove opening, in the same way, the residues can be discharged from the bottom discharging groove opening by moving the collecting shell downwards, and the problem that an existing flue gas desulfurization and dust removal device is difficult to treat the residues conveniently is solved.

Description

Technical Field

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

[0002] Flue gas desulfurization, in FGD technology, can be divided into the following five methods according to the type of desulfurizer: calcium method based on CaCO3 (limestone), magnesium method based on Mg0, sodium method based on Na2SO3, ammonia method based on NH3, and organic alkali method based on organic alkali.

[0003] Publication number: CN 219815735 U's patent discloses a flue gas desulfurization and dust removal spray device, which includes a box body, a partition is fixedly installed inside the box body, a filter is movably installed inside the box body and above the partition, and a driving mechanism for preventing the filter from being blocked is arranged inside the box body. The device causes the filter to move up and down reciprocatingly to generate vibration, which can effectively reduce the occurrence of filter blockage and achieve the purpose of preventing filter blockage. However, the device has the problem that the flue gas that needs to be sprayed and desulfurized is introduced from the smoke inlet pipe into the water of the box body for preliminary treatment, and then introduced above the filter by using an exhaust fan for spray desulfurization treatment. Although the filter is in an up and down vibration state when the filter filters the residue generated by the reaction of the desulfurizer and sulfur oxides, the desulfurization efficiency is not guaranteed when there are a lot of reaction residues. It is still necessary to stop the desulfurization operation and open the box door to use the cleaning mechanism to remove the residue on the filter. It is difficult to ensure the continuity of the desulfurization operation, thereby reducing the flue gas desulfurization efficiency. For this reason, a desulfurization and dust removal spray device is proposed to solve the problem that the existing flue gas desulfurization and dust removal device is difficult to conveniently handle the residue. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a desulfurization and dust removal spray device to solve the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization and dust removal spray device, comprising a treatment box, an exhaust pipe is arranged on the top of the treatment box, a drain pipe is arranged on one end of the treatment box, a primary treatment mechanism is arranged on one side of the treatment box, a spray mechanism is arranged in the inner cavity of the treatment box, a filter cylinder is arranged in the inner cavity of the treatment box, a motor is fixedly connected to one side of the treatment box, the motor output shaft is fixedly connected to the filter cylinder, a notch is provided in the inner cavity wall of the treatment box, a movable groove is provided in the inner wall of the notch, a collecting shell is provided in the inner cavity of the movable groove, a scraper guide is fixedly connected to the inner cavity of the notch, two discharge notches are provided at one end of the treatment box, an electric push rod is fixed in the inner wall of the treatment box, and a second notch is provided at one end of the collecting shell.

[0008] Furthermore, the exhaust pipe and the liquid discharge pipe are both communicated with the processing box, and a solenoid valve is provided in the inner cavity of the liquid discharge pipe.

[0009] Furthermore, the discharge slot is interconnected with the movable slot, the top of the electric push rod is fixedly connected to the collecting shell, the scraper guide plate is higher than the top of the collecting shell and one side is in contact with the filter cylinder.

[0010] Furthermore, the primary treatment mechanism includes a water tank fixed on one side of the treatment box, the inner cavity of the water tank is provided with an L-shaped air inlet pipe and a connecting pipe, the connecting pipe is interconnected with the treatment box, and the liquid level of the water tank is lower than the connecting pipe.

[0011] Furthermore, the spray mechanism comprises a spray frame tube arranged at the top of the inner cavity of the processing box, and a plurality of spray heads are arranged at the bottom of the spray frame tube.

[0012] Furthermore, a pump body is fixedly connected to one side of the processing box, and water pipes are provided on the top and bottom of the pump body. The water pipes on the top and bottom of the pump body are respectively interconnected with the spray frame tube and the bottom of the inner cavity of the processing box.

[0013] Furthermore, a drainage groove is provided at one end of the collecting shell, and a reflux notch is provided on the inner cavity wall of the processing box.

[0014] (III) Beneficial effects

[0015] 1. In the desulfurization and dust removal spray device, the residue after the flue gas reacts with the reaction liquid is filtered by the filter cylinder, and the residue is scraped into the collection shell from the slot under the action of the scraper. There is no need to stop the introduction of flue gas during cleaning. The collection shell is moved up to the top of the movable slot by an electric push rod, and the second slot is docked with the slot. The collected residue can be discharged from the top discharge slot. Similarly, the collection shell can be moved down to discharge the residue from the bottom discharge slot, which solves the problem that it is difficult to conveniently handle the residue in the existing flue gas desulfurization and dust removal device.

[0016] 2. The desulfurization and dust removal spray device, when the flue gas is desulfurized, will first enter the primary treatment mechanism, where the water in the water tank will absorb the dust and most of the sulfides in the flue gas and then introduce them into the treatment box. Then, the spray mechanism will be used to evenly spray the flue gas sulfide reaction liquid for desulfurization and dust removal. Multiple desulfurization and dust removal can improve the flue gas separation and dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the structural diagram of the utility model;

[0018] Figure 2 This is a cross-sectional view of the structural processing box of the utility model;

[0019] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure collection shell of the utility model.

[0021] In the figure: 1. treatment box; 2. exhaust pipe; 3. drain pipe; 4. primary treatment mechanism; 41. water tank; 42. L-shaped air inlet pipe; 43. connecting pipe; 5. spray mechanism; 51. spray frame tube; 52. nozzle; 53. pump body; 54. water pipe; 6. filter cylinder; 7. motor; 8. notch; 9. moving groove; 10. collecting shell; 11. scraper guide; 12. discharge notch; 13. electric push rod; 14. second notch; 15. drainage groove; 16. reflux notch. 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] Example: See Figure 1-4 A desulfurization and dust removal spray device comprises a treatment box 1, an exhaust pipe 2 is arranged on the top of the treatment box 1, a drain pipe 3 is arranged at one end of the treatment box 1, a primary treatment mechanism 4 is arranged on one side of the treatment box 1, a spray mechanism 5 is arranged in the inner cavity of the treatment box 1, a filter cylinder 6 is arranged in the inner cavity of the treatment box 1, a motor 7 is fixedly connected to one side of the treatment box 1, the output shaft of the motor 7 is fixedly connected to the filter cylinder 6, a notch 8 is opened in the inner cavity wall of the treatment box 1, a movable groove 9 is opened in the inner wall of the notch 8, a collecting shell 10 is arranged in the inner cavity of the movable groove 9, a scraper guide plate 11 is fixedly connected to the inner cavity of the notch 8, two discharge notches 12 are opened at one end of the treatment box 1, an electric push rod 13 is fixed in the inner wall of the treatment box 1, and a second notch 14 is opened at one end of the collecting shell 10.

[0024] Furthermore, the exhaust pipe 2 and the drain pipe 3 are both communicated with the processing box 1 , and the inner cavity of the drain pipe 3 is provided with a solenoid valve.

[0025] Furthermore, the discharge slot 12 is interconnected with the movable slot 9 , the top of the electric push rod 13 is fixedly connected to the collecting shell 10 , the scraper guide plate 11 is higher than the top of the collecting shell 10 and one side is in contact with the filter cylinder 6 .

[0026] Furthermore, the primary treatment mechanism 4 includes a water tank 41 fixed on one side of the treatment box 1. The inner cavity of the water tank 41 is provided with an L-shaped air inlet pipe 42 and a connecting pipe 43. The connecting pipe 43 is interconnected with the treatment box 1. The liquid level of the water tank 41 is lower than the connecting pipe 43. The flue gas is introduced into the water in the water tank 41 from the L-shaped air inlet pipe 42 to absorb the dust and most of the sulfides. Then, the flue gas can be discharged into the top of the treatment box 1 through the connecting pipe 43 for subsequent spraying desulfurization and dust removal operations, thereby improving the flue gas desulfurization and dust removal effect.

[0027] Furthermore, the spray mechanism 5 includes a spray frame 51 disposed at the top of the inner cavity of the processing box 1 , and a plurality of spray heads 52 are disposed at the bottom of the spray frame 51 .

[0028] Furthermore, a pump body 53 is fixedly connected to one side of the processing box 1, and water pipes 54 are provided on the top and bottom of the pump body 53. The water pipes 54 on the top and bottom of the pump body 53 are respectively interconnected with the spray frame tube 51 and the bottom of the inner cavity of the processing box 1. After the flue gas treated by the primary treatment mechanism 4 enters the spray mechanism 5, the pump body 53 can be opened to introduce the reaction liquid at the bottom of the processing box 1 from the water pipe 54 into the spray frame tube 51, and then the nozzle is sprayed evenly to the introduced flue gas over a large range, thereby further ensuring the effect of flue gas desulfurization and dust removal.

[0029] Furthermore, a drainage groove 15 is provided at one end of the collecting shell 10, and a reflux groove 16 is provided on the inner wall of the processing box 1. When the scraper plate 11 is used to scrape the residue on the filter cylinder 6 during the rotation process, the reaction liquid will enter the collecting shell 11 to some extent. At this time, under the action of the drainage groove 15, the reaction liquid can flow back to the processing box 1 from the reflux groove 16, thereby improving the utilization rate of the desulfurization and dust removal reaction liquid and avoiding the reaction liquid from being discharged from the discharge groove 12 when cleaning the residue, causing pollution or harm to the operator.

[0030] Working principle: When using this desulfurization and dust removal spray device, after the desulfurization reaction liquid is introduced into the treatment box 1, the flue gas is introduced into the primary treatment mechanism 4 to absorb dust and most of the sulfides and then enter the treatment box 1, the motor 7 and the spray mechanism 5 are turned on, and the residue after the flue gas reacts with the reaction liquid is filtered by the filter cylinder 6, and the residue is scraped from the slot 8 into the collection shell 10 under the action of the scraper plate 11. There is no need to stop the introduction of flue gas during cleaning. The collection shell 10 is moved up to the top of the movable slot 9 by the electric push rod 13, and the second slot 14 is connected to the slot 8. The collected residue can be discharged from the top discharge slot 12. Similarly, the collection shell 10 can be moved down to discharge the residue from the bottom discharge slot, which solves the problem that the existing flue gas desulfurization and dust removal device is difficult to conveniently handle the residue.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] 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 spray device, comprising a treatment box (1), characterized in that: The top of the treatment box (1) is provided with an exhaust pipe (2), one end of the treatment box (1) is provided with a drain pipe (3), one side of the treatment box (1) is provided with a primary treatment mechanism (4), the inner cavity of the treatment box (1) is provided with a spray mechanism (5), the inner cavity of the treatment box (1) is provided with a filter cylinder (6), one side of the treatment box (1) is fixedly connected with a motor (7), the output shaft of the motor (7) is fixedly connected to the filter cylinder (6), and the treatment box (1) is provided with a primary treatment mechanism (4). The inner wall of the processing box (1) is provided with a slot (8), the inner wall of the slot (8) is provided with a movable slot (9), the inner cavity of the movable slot (9) is provided with a collecting shell (10), the inner cavity of the slot (8) is fixedly connected with a scraper guide plate (11), one end of the processing box (1) is provided with two discharge slots (12), an electric push rod (13) is fixed in the inner wall of the processing box (1), and one end of the collecting shell (10) is provided with a second slot (14).

2. A desulfurization and dust removal spray device according to claim 1, characterized in that: The exhaust pipe (2) and the liquid discharge pipe (3) are both interconnected with the processing box (1), and the inner cavity of the liquid discharge pipe (3) is provided with a solenoid valve.

3. A desulfurization and dust removal spray device according to claim 1, characterized in that: The discharge slot (12) is interconnected with the movable slot (9), the top of the electric push rod (13) is fixedly connected to the collection shell (10), and the scraper guide plate (11) is higher than the top of the collection shell (10) and one side is in contact with the filter cylinder (6).

4. A desulfurization and dust removal spray device according to claim 1, characterized in that: The primary treatment mechanism (4) comprises a water tank (41) fixed to one side of the treatment box (1); the inner cavity of the water tank (41) is provided with an L-shaped air inlet pipe (42) and a connecting pipe (43); the connecting pipe (43) is in communication with the treatment box (1); and the liquid level of the water tank (41) is lower than that of the connecting pipe (43).

5. A desulfurization and dust removal spray device according to claim 1, characterized in that: The spray mechanism (5) comprises a spray frame tube (51) arranged at the top of the inner cavity of the processing box (1), and a plurality of spray heads (52) are arranged at the bottom of the spray frame tube (51).

6. A desulfurization and dust removal spray device according to claim 5, characterized in that: A pump body (53) is fixedly connected to one side of the treatment box (1), and water pipes (54) are provided at the top and bottom of the pump body (53). The water pipes (54) at the top and bottom of the pump body (53) are respectively interconnected with the spray frame tube (51) and the bottom of the inner cavity of the treatment box (1).

7. A desulfurization and dust removal spray device according to claim 1, characterized in that: A drainage groove (15) is provided at one end of the collection shell (10), and a return notch (16) is provided on the inner cavity wall of the processing box (1).

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