Lime kiln desulfurization, dust removal and denitration device

Abstract

The utility model relates to the technical field of dust removal and denitration, in particular to a lime kiln desulfurization, dust removal and denitration device which comprises a dust falling box and a gas purification box, a gas inlet pipe is arranged at the top end of the side, away from the gas purification box, of the outer portion of the dust falling box, and the dust falling box is connected with the gas purification box through a communicating pipe. A gas outlet pipe is fixedly arranged at the top end of the side, away from the dust falling box, of the gas purification box, a water pipe is fixedly arranged at the top end in the dust falling box, a filtering frame is installed at the bottom end in the dust falling box through a movable groove, a water outlet is formed in the bottom end of one side in the dust falling box, and a diffusion mechanism is arranged at the bottom end in the water pipe. According to the flue gas dedusting device, a dedusting effect can be provided for dust in flue gas in a water sprinkling mode, preliminary dedusting is achieved, meanwhile, water can cool the flue gas, the influence of high temperature on equipment in the subsequent denitration step is avoided, the water can be well diffused in the dedusting box through the use of the arc-shaped diffusion plate, and the dedusting effect is improved. And the dust falling effect of water sprinkling work is ensured.

Description

Technical Field

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

[0002] Lime kiln is used to produce lime. With the rapid development of industry, the steel industry, calcium carbide industry, alumina industry, refractory materials and other industries are all large consumers of lime, and the demand for lime is increasing. However, with the production of lime, environmental damage is inevitable and will cause damage to the environment. Existing lime kilns will emit a large amount of dust into the air during production, causing an increase in the amount of dust in the air and reducing air quality. They will also emit a large amount of harmful gases, sulfur, nitrate and other chemicals, causing serious damage to the environment and seriously polluting the environment.

[0003] In a lime kiln desulfurization, dust removal and denitrification device with the public specification of Chinese utility model patent application CN217312604U, although it has the function of primary filtration of dust in the gas through the filter to reduce the dust content in the gas, and can effectively reduce the accumulation of dust inside the dust purification tank, at the same time, when the gas flows through the inside of the dust purification tank, the temperature of the high-temperature gas in the lime kiln will be reduced, avoiding the problem of high-temperature gas causing high-temperature load of the equipment when filtering the nitrate and sulfur in the gas in the next step, and extending the service life of the equipment. However, when water is used for dust reduction treatment, the spraying range of the water is limited, so that the water cannot contact the flue gas more comprehensively, so that its dust reduction effect still needs to be improved. Utility Model Content

[0004] The utility model aims to provide a lime kiln desulfurization, dust removal and denitrification device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A desulfurization, dust removal and denitrification device for a lime kiln comprises a dust reduction box and a gas purification box, an air inlet pipe is arranged at the top of a side of the dust reduction box away from the gas purification box, the dust reduction box and the gas purification box are connected via a connecting pipe, an air outlet pipe is fixedly arranged at the top of a side of the gas purification box away from the dust reduction box, a water pipe is fixedly arranged at the top of the dust reduction box, a filter frame is installed at the bottom of the dust reduction box through a movable groove, a water outlet is arranged at the bottom of one side of the dust reduction box, a diffusion mechanism is arranged at the bottom of the water pipe, a cavity is arranged at one end of the filter frame, and a fixing mechanism is arranged inside the cavity;

[0007] Preferably, the diffusion mechanism comprises a connecting rod, a mounting plate, a stressed fan blade and an arc-shaped diffusion plate, the connecting rods are fixedly arranged on both sides of the bottom end of the water pipe, a mounting plate is fixedly arranged between one ends of the connecting rods, a stressed fan blade is movably arranged on the top of the mounting plate through a rotating shaft, and an arc-shaped diffusion plate is installed at the bottom of the mounting plate at one end of the rotating shaft where the stressed fan blade is located;

[0008] Preferably, the fixing mechanism comprises a rotating disk, a supporting rod and a clamping block, a rotating disk is movably provided on one side of the cavity through a rotating shaft, a supporting rod is movably provided on the outer side of one side of the rotating disk through a rotating shaft, a clamping block is movably provided on the top of the supporting rod through a rotating shaft, and the top of the clamping block passes through the filter frame through a movable hole;

[0009] Preferably, a plurality of strip-shaped grooves are evenly formed on the outer side of the arc-shaped diffusion plate;

[0010] Preferably, a connection block is fixedly arranged above the filter frame on one side of the outside of the dust reduction box, a card slot is opened at the bottom end of the connection block, and the top end of the card slot is located inside the card slot;

[0011] Preferably, a knob is installed on one end of the rotating shaft where the rotating disk is located on one side of the outside of the filter frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can provide dust reduction effect for dust in flue gas by sprinkling water, thereby achieving preliminary dust removal. Meanwhile, water can also cool down flue gas, thereby avoiding high temperature affecting equipment in subsequent denitration steps. The use of an arc-shaped diffusion plate can make water diffuse better inside the dust reduction box, thereby ensuring the dust reduction effect of water sprinkling. The opening of the strip grooves can make water pass through the arc-shaped diffusion plate and sprinkle at the lower position of the arc-shaped diffusion plate. The synchronously rotating arc-shaped diffusion plate can provide an impact effect on the water, and can change the position of the strip grooves, thereby enabling the arc-shaped diffusion plate to provide a better diffusion effect for the water. The arc-shaped diffusion plate can rotate automatically by the impact of water, and does not require a dedicated driving source, thereby avoiding energy consumption and waste of resources.

[0014] 2. The utility model can filter water containing dust by using a filter frame, which is convenient for subsequent water recycling. At the same time, the assembled filter frame can be simply and quickly fixed by using a fixing mechanism, thereby ensuring the stability of the filter frame during daily use of the device. It can also facilitate subsequent staff to take out the filter frame for cleaning, thereby ensuring the convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a front cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0019] Figure 5 It is a schematic diagram of the strip grooves provided on the arc-shaped diffusion plate of the utility model.

[0020] In the figure: 1. dust suppression box; 2. gas purification box; 3. air inlet pipe; 4. air outlet pipe; 5. water pipe; 6. filter frame; 7. water outlet; 8. cavity; 9. connecting rod; 10. mounting plate; 11. force-bearing fan blades; 12. arc-shaped diffuser plate; 13. turntable; 14. support rod; 15. block; 16. strip groove; 17. connecting block; 18. slot; 19. knob. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 5 As shown, a technical solution provided by the utility model:

[0023] A desulfurization, dust removal and denitrification device for a lime kiln comprises a dust reduction box 1 and a gas purification box 2, an air inlet pipe 3 is arranged at the top of the side of the dust reduction box 1 away from the gas purification box 2, the dust reduction box 1 and the gas purification box 2 are connected by a connecting pipe, an air outlet pipe 4 is fixedly arranged at the top of the side of the gas purification box 2 away from the dust reduction box 1, a water pipe 5 is fixedly arranged at the top of the dust reduction box 1, a filter frame 6 is installed at the bottom of the dust reduction box 1 through a movable groove, a water outlet 7 is opened at the bottom of one side of the dust reduction box 1, a diffusion mechanism is arranged at the bottom of the water pipe 5, a cavity 8 is opened at one end of the filter frame 6, and a fixing mechanism is arranged inside the cavity 8;

[0024] Through the above scheme, the dust in the flue gas can be reduced by sprinkling water, achieving preliminary dust removal. At the same time, water can also cool the flue gas to avoid the impact of high temperature on the equipment in the subsequent denitrification step.

[0025] In this embodiment, preferably, the diffusion mechanism includes a connecting rod 9, a mounting plate 10, a stressed fan blade 11 and an arc-shaped diffusion plate 12. The connecting rod 9 is fixedly arranged on both sides of the bottom end of the water pipe 5, and the mounting plate 10 is fixedly arranged between one end of the connecting rod 9. The top of the mounting plate 10 is movably provided with a stressed fan blade 11 through a rotating shaft, and the bottom of the mounting plate 10 is provided with an arc-shaped diffusion plate 12 at one end of the rotating shaft where the stressed fan blade 11 is located;

[0026] Through the above scheme, the use of the arc-shaped diffusion plate 12 can make the water diffuse better inside the dust suppression box 1, thereby ensuring the dust suppression effect of the water sprinkling work. The opening of the strip groove 16 can make the water pass through the arc-shaped diffusion plate 12 and be sprinkled at the position below the arc-shaped diffusion plate 12. The synchronously rotating arc-shaped diffusion plate 12 can provide an impact effect on the water, and can change the position of the strip groove 16, thereby making the arc-shaped diffusion plate 12 provide a better diffusion effect for the water. The annular diffusion plate can rotate automatically when it is impacted by water, and does not require a dedicated driving source, thereby avoiding energy consumption and waste of resources.

[0027] In this embodiment, preferably, the fixing mechanism includes a rotating disk 13, a support rod 14 and a clamping block 15. The rotating disk 13 is movably provided on one side of the cavity 8 through a rotating shaft, and the support rod 14 is movably provided on the outer side of one side of the rotating disk 13 through a rotating shaft. The top of the support rod 14 is movably provided with a clamping block 15 through a rotating shaft, and the top of the clamping block 15 passes through the filter frame 6 through a movable hole;

[0028] Through the above scheme, the assembled filter frame 6 can be simply and quickly fixed by using the fixing mechanism, thereby ensuring the stability of the filter frame 6 during daily use of the device, and also making it convenient for subsequent staff to take out the filter frame 6 for cleaning, thereby ensuring the convenience of use of the device;

[0029] In this embodiment, preferably, a plurality of strip-shaped grooves 16 are evenly formed on the outer side of the arc-shaped diffusion plate 12;

[0030] Through the above solution, the strip grooves 16 are provided to allow water to pass through the arc diffuser plate 12 and be sprinkled at a position below the arc diffuser plate 12;

[0031] In this embodiment, preferably, a connection block 17 is fixedly provided on the outer side of the dust reduction box 1 above the filter frame 6, a card slot 18 is provided at the bottom end of the connection block 17, and the top end of the card block 15 is located inside the card slot 18;

[0032] Through the above solution, the connecting block 17 and the card slot 18 are used in conjunction with the fixing mechanism;

[0033] In this embodiment, preferably, a knob 19 is installed on one end of the rotating shaft where the rotating disk 13 is located on the outer side of the filter frame 6;

[0034] Through the above solution, the turntable 13 can be driven to rotate by using the knob 19;

[0035] When a lime kiln desulfurization, dust removal and denitrification device of the present embodiment is in use, the flue gas that needs dust removal and denitrification is introduced into the dust reduction box 1 through the air inlet pipe 3, and the water pipe 5 is used to sprinkle water into the dust reduction box 1 at the same time. When sprinkling water, the pressure of the water will impact the stressed fan blades 11 to make them rotate, thereby driving the arc diffuser 12 with the same rotation axis as the stressed fan blades 11 to rotate synchronously, so that the water can diffuse inside the dust reduction box 1 along the arc surface of the arc diffuser 12 when passing through the arc diffuser 12. The opening of the strip grooves 16 can enable the water to pass through the arc diffuser 12 and be sprinkled at the position below the arc diffuser 12. The synchronously rotating arc diffuser 12 can provide an impact effect on the water and can change the position of the strip grooves 16, so that the arc diffuser 12 can provide a better diffusion effect for the water. The step of sprinkling water can provide a dust reduction effect for the dust in the flue gas, thereby achieving preliminary dust removal. At the same time, the water can also cool the flue gas to avoid the subsequent denitrification step. The dust in the water will be filtered by the filter frame 6, and the smoke after dust removal will be passed into the gas purification box 2, and the denitrification treatment will be realized through the denitrification method in the prior art. When the filter frame 6 is assembled on the dust removal box 1, the filter frame 6 is first inserted into the dust removal box 1. After it is placed, the turntable 13 can be driven to rotate by using the knob 19. Because the connection point between the support rod 14 and the turntable 13 is on the outer ring of the turntable 13, as the turntable 13 rotates, the connection position between the top of the support rod 14 and the block 15 will move, and then the top of the block 15 will be inserted into the slot 18, thereby fixing the assembled filter frame 6, ensuring the stability of the filter frame 6 during daily use of the device, and at the same time, the fixing method is relatively simple, which can facilitate the subsequent staff to take out the filter frame 6 for cleaning, thereby ensuring the convenience of use of the device.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A lime kiln desulfurization, dust removal and denitrification device, comprising a dust reduction box (1) and a gas purification box (2), characterized in that: An air inlet pipe (3) is arranged at the top of a side of the dust reduction box (1) away from the gas purification box (2); the dust reduction box (1) and the gas purification box (2) are connected via a connecting pipe; an air outlet pipe (4) is fixedly arranged at the top of a side of the gas purification box (2) away from the dust reduction box (1); a water pipe (5) is fixedly arranged at the top of the dust reduction box (1); a filter frame (6) is installed at the bottom of the dust reduction box (1) via a movable groove; a water outlet (7) is provided at the bottom of one side of the dust reduction box (1); a diffusion mechanism is provided at the bottom of the water pipe (5); a cavity (8) is provided at one end of the filter frame (6); a fixing mechanism is provided inside the cavity (8).

2. A lime kiln desulfurization, dust removal and denitrification device according to claim 1, characterized in that: The diffusion mechanism comprises a connecting rod (9), a mounting plate (10), a stressed fan blade (11) and an arc-shaped diffusion plate (12); the connecting rod (9) is fixedly arranged on both sides of the bottom end of the water pipe (5); the mounting plate (10) is fixedly arranged between one ends of the connecting rod (9); the stressed fan blade (11) is movably arranged on the top of the mounting plate (10) via a rotating shaft; and the arc-shaped diffusion plate (12) is installed on the bottom of the mounting plate (10) at one end of the rotating shaft where the stressed fan blade (11) is located.

3. A lime kiln desulfurization, dust removal and denitrification device according to claim 1, characterized in that: The fixing mechanism comprises a rotating disk (13), a supporting rod (14) and a clamping block (15); the rotating disk (13) is movably arranged on one side of the cavity (8) via a rotating shaft; the supporting rod (14) is movably arranged on the outer side of one side of the rotating disk (13) via a rotating shaft; the clamping block (15) is movably arranged on the top end of the supporting rod (14) via a rotating shaft; and the top end of the clamping block (15) passes through the filter frame (6) via a movable hole.

4. A lime kiln desulfurization, dust removal and denitrification device according to claim 2, characterized in that: A plurality of strip-shaped grooves (16) are evenly arranged on the outer side of the arc-shaped diffusion plate (12).

5. A lime kiln desulfurization, dust removal and denitrification device according to claim 3, characterized in that: A connection block (17) is fixedly arranged above the filter frame (6) on one side of the outside of the dust reduction box (1), a slot (18) is provided at the bottom end of the connection block (17), and the top end of the slot (15) is located inside the slot (18).

6. A lime kiln desulfurization, dust removal and denitrification device according to claim 3, characterized in that: A knob (19) is installed on one end of a rotating shaft where the rotating disk (13) is located on the outer side of the filter frame (6).

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