Ultralow-emission desulfurization and denitrification device for lime kiln

Abstract

The utility model belongs to the technical field of desulfurization and denitrification equipment, and particularly relates to a lime kiln ultra-low emission desulfurization and denitrification device which comprises a reaction tower, the reaction tower comprises an upper tower body and a lower tower body, a denitrification mechanism is fixedly mounted in the upper tower body and comprises a first liquid inlet pipe, and a second liquid inlet pipe is fixedly mounted in the lower tower body. A first liquid inlet pipe is fixedly mounted in the lower tower body, a plurality of first flow dividing pipes are fixedly mounted on the two sides of the first liquid inlet pipe, a plurality of first atomizing nozzles are fixedly mounted at the bottoms of the first flow dividing pipes, a desulfurization mechanism is fixedly mounted in the lower tower body and comprises a second liquid inlet pipe, and second flow dividing pipes are fixedly mounted on the two sides of the second liquid inlet pipe; through the structural design of the upper tower body, the lower tower body, the denitration mechanism and the desulfurization mechanism, the function of reducing mutual interference among purification processes is realized, so that the operation conditions of denitration and desulfurization can be optimized in a targeted manner, the overall efficiency of desulfurization and denitration is improved, and meanwhile, secondary pollutants caused by improper mixing are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurization and denitration equipment technical field, specifically a kind of lime kiln ultra-low emission desulfurization and denitration device. BACKGROUND

[0002] Lime kiln, for producing lime, with the rapid development of industry, steel industry, calcium carbide industry, alumina industry, refractory material and other industries are lime big consumer, the demand for lime is increasing, but with the production of lime, the damage to the environment is indispensable, will cause damage to the environment, existing lime kiln will discharge a large amount of dust in the air in production, cause the dust amount in air to increase, reduce air quality, also discharge a large amount of harmful gas, sulfur and nitrate and other chemical substances, cause serious damage to the environment, serious pollution to the environment.

[0003] Such as publication (announcement) No. CN216604729U, a kind of lime kiln desulfurization and dust removal and denitration device, including bottom plate, the left side fixed connection box of bottom plate top, the right side fixed connection of bottom plate top has jar body, the inside of jar body is provided with filter dismounting mechanism;The filter dismounting mechanism includes the vertical groove of being opened in the front and back sides of jar body, the filter screen of the inside of jar body is slidably connected, the front and back sides of filter screen are all fixedly connected with fixed block, the outer surface of two fixed blocks is slidably connected with the inner surface of vertical groove, the bottom of front vertical groove inner wall is fixedly connected with fixed rod, the utility model relates to dust removal desulfurization and denitration equipment technical field.The lime kiln desulfurization and dust removal and denitration device, by the setting of filter dismounting mechanism, realize the quick dismounting replacement of filter screen, avoid the blockage caused by the excessive use time of filter screen and the excessive dust on filter screen, improve the efficiency of filtration, and the practicability is very strong.

[0004] But according to the working principle proposed in the above patent, the applicant believes that the above device guides desulfurizer and denitration agent into the box through the liquid inlet pipe and reacts with flue gas, but the mixing of two kinds of doses may lead to poor reaction effect, and further affect the efficiency and effect of desulfurization and denitration.

[0005] Therefore, a kind of lime kiln ultra-low emission desulfurization and denitration device is proposed for the above problems. Utility model content

[0006] In order to make up for the deficiencies of the prior art, the problem of poor desulfurization and denitration effect caused by uneven mixing, the utility model provides a kind of lime kiln ultra-low emission desulfurization and denitration device.

[0007] The utility model discloses a technical scheme that solves its technical problem is adopted: a lime kiln ultra -low emission desulfurization and desulfurization device, including the reaction tower, the reaction tower includes the upper tower body and lower tower body, the upper tower body inside fixed mounting processing mechanism, the processing mechanism includes the first liquid inlet pipe, the both sides of first liquid inlet pipe are all fixed mounting with a plurality of first shunt pipe, the bottom of first shunt pipe is fixed mounting with a plurality of first atomizing nozzle, the inside fixed mounting of lower tower body has desulfurization mechanism, and the desulfurization mechanism includes the second liquid inlet pipe, and the both sides of second liquid inlet pipe are all fixed mounting with second shunt pipe, and the bottom of second shunt pipe is fixed mounting with a plurality of second atomizing nozzle.

[0008] As preferred, the bottom of the upper tower body inner cavity is fixedly installed with a partition plate, and the bottom of one side of the upper tower body surface is fixedly installed with a reflux pipe.

[0009] As preferred, the top of the upper tower body is fixedly installed with an exhaust pipe, and the middle part of the other side of the upper tower body surface is fixedly installed with an air guide pipe.

[0010] As preferred, the bottom of the lower tower body is fixedly installed with a storage tank, one side of the storage tank is fixedly installed with a discharge pipe, and one side of the discharge pipe is fixedly installed with an electric valve.

[0011] As preferred, one side of the storage tank is fixedly installed with an air inlet pipe, and one side of the air inlet pipe is threadedly connected with a filter box.

[0012] As preferred, a waste cavity is formed in the inside of the filter box, a filter screen is fixedly installed on the inner wall of the side of the filter box close to the air inlet pipe, and a connecting pipe is fixedly installed on one side of the filter box.

[0013] The utility model discloses the beneficial effects are:

[0014] 1. The utility model discloses a structure design through upper tower body, lower tower body, processing mechanism, desulfurization mechanism, and through the mutual cooperation between the structure, has realized the function that reduces the mutual interference between purification technology, thereby can be targeted optimization desulfurization and desulfurization operating condition, thereby improves the overall efficiency of desulfurization and desulfurization, and can separately adjust the dosing amount of desulfurizer and desulfurizer, and further ensure the best working condition of both, simultaneously, reduced the generation of secondary pollutants due to improper mixing, solved the problem of poor desulfurization and desulfurization effect caused by uneven mixing.

[0015] 2. The utility model discloses through the setting of partition plate, is convenient for with the isolation of processing mechanism and desulfurization mechanism, and further reduces the potential chemical reaction risk between the purification agent, improves the safety in the purification process. DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below only constitute some of the embodiments of the present application, and do not constitute all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0017] Figure 1 It is a front view of the structure of the present application.

[0018] Figure 2 It is a back view of the structure of the present application.

[0019] Figure 3 It is a sectional view of the reaction tower of the structure of the present application.

[0020] Figure 4 It is a sectional view of the filter box of the structure of the present application.

[0021] Figure 5 It is a sectional view of the overall structure of the present application.

[0022] In the figure: 1, reaction tower; 2, upper tower body; 3, lower tower body; 4, processing mechanism; 401, first liquid inlet pipe; 402, first shunt pipe; 403, first atomizing nozzle; 5, desulfurization mechanism; 501, second liquid inlet pipe; 502, second shunt pipe; 503, second atomizing nozzle; 6, partition plate; 7, reflux pipe; 8, exhaust pipe; 9, gas guide pipe; 10, storage tank; 11, discharge pipe; 12, electric valve; 13, gas inlet pipe; 14, filter box; 15, waste cavity; 16, filter screen; 17, connecting pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, and do not constitute all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] The following will be described in detail in combination with the drawings in the embodiments of the present application. Figures 1-5 The present application will be described in further detail,

[0025] The embodiment of the application discloses a lime kiln ultra-low emission desulfurization and denitrification device, which comprises a reaction tower 1, the reaction tower 1 comprises an upper tower body 2 and a lower tower body 3, a treatment mechanism 4 is fixedly installed in the upper tower body 2, the treatment mechanism 4 comprises a first liquid inlet pipe 401, a plurality of first shunt pipes 402 are fixedly installed on the two sides of the first liquid inlet pipe 401, a plurality of first atomizing nozzles 403 are fixedly installed at the bottom of the first shunt pipe 402, a desulfurization mechanism 5 is fixedly installed in the lower tower body 3, the desulfurization mechanism 5 comprises a second liquid inlet pipe 501, a second shunt pipe 502 is fixedly installed on the two sides of the second liquid inlet pipe 501, and a plurality of second atomizing nozzles 503 are fixedly installed at the bottom of the second shunt pipe 502.

[0026] With reference to Figure 1 , Figure 2 , Figure 3 , Figure 5 , the upper tower body 2, the lower tower body 3, the treatment mechanism 4 and the desulfurization mechanism 5 realize the function of reducing mutual interference between purification processes, thereby targetedly optimizing the operation conditions of denitrification and desulfurization, improving the overall efficiency of desulfurization and denitrification, and separately adjusting the dosing amount of the desulfurizer and the denitrifier, thereby ensuring the optimal working state of the two, and reducing the generation of secondary pollutants caused by improper mixing.

[0027] A partition plate 6 is fixedly installed at the bottom of the inner cavity of the upper tower body 2, and a reflux pipe 7 is fixedly installed at the bottom of one side of the surface of the upper tower body 2.

[0028] With reference to Figure 3 , the partition plate 6 facilitates isolation of the treatment mechanism 4 and the desulfurization mechanism 5, thereby reducing the potential chemical reaction risk between the purifying agents and improving the safety in the purification process, and the reflux pipe 7 facilitates centralized recovery of the denitrifier after denitrification, so as to be reused subsequently.

[0029] An exhaust pipe 8 is fixedly installed at the top of the upper tower body 2, and a gas guide pipe 9 is fixedly installed at the middle part of the other side of the surface of the upper tower body 2.

[0030] With reference to Figure 1 , Figure 2 , Figure 3 , the exhaust pipe 8 facilitates guiding the flue gas after purification to be discharged from the device, and the gas guide pipe 9 facilitates guiding the flue gas after desulfurization to enter the upper tower body 2, thereby ensuring the smoothness of gas flow in the purification process.

[0031] A storage box 10 is fixedly installed at the bottom of the lower tower body 3, a discharge pipe 11 is fixedly installed on one side of the storage box 10, and an electric valve 12 is fixedly installed on one side of the discharge pipe 11.

[0032] With reference to Figure 1 and Figure 5, through the storage tank 10 convenient to carry limestone slurry, so that subsequent continuous reaction in flue gas carbon dioxide, through the setting of discharge pipe 11, convenient to form after the reaction of gypsum discharge.

[0033] The side of the storage tank 10 is fixedly installed with the air inlet pipe 13, and the side of the air inlet pipe 13 is threadedly connected with the filter box 14.

[0034] Referring to Figure 1 and Figure 2 , through the air inlet pipe 13, the filtered flue gas is conveniently guided into the reaction tower 1.

[0035] The inside of the filter box 14 is provided with a waste cavity 15, the inner wall of the side of the filter box 14 close to the air inlet pipe 13 is fixedly installed with a filter screen 16, and the side of the filter box 14 is fixedly installed with a connecting pipe 17.

[0036] Referring to Figure 4 and Figure 5 , through the waste cavity 15, the filtered impurities are conveniently temporarily carried, through the filter screen 16, the particulate impurities in the flue gas are conveniently filtered, and through the connecting pipe 17, the whole device is conveniently connected with the flue gas duct.

[0037] Working principle: when the device is used, the flue gas is guided into the filter box 14 through the connecting pipe 17, the flue gas is filtered through the filter screen 16, the filtered impurities are carried through the waste cavity 15, the filtered flue gas is guided into the storage tank 10 through the air inlet pipe 13, the limestone slurry is guided to the second shunt pipe 502 through the second liquid inlet pipe 501, the flue gas is desulfurized through the second atomizing nozzle 503, the desulfurized limestone slurry is released by opening the discharge pipe 11 through the electric valve 12 after staying in the storage tank 10, the desulfurized flue gas enters the upper tower body 2 through the air guide pipe 9, the desulfurizing agent is guided to the first shunt pipe 402 through the first liquid inlet pipe 401, the flue gas is desulfurized through the first atomizing nozzle 403, the desulfurized flue gas is released through the exhaust pipe 8, and the desulfurized desulfurizing agent is refluxed through the reflux pipe 7.

[0038] The above shows and describes the basic principle, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A lime kiln ultra-low emission desulfurization and denitrification device, characterized by: The invention comprises a reaction tower (1); the reaction tower (1) comprises an upper tower body (2) and a lower tower body (3); a processing mechanism (4) is fixedly installed inside the upper tower body (2); the processing mechanism (4) comprises a first liquid inlet pipe (401); a plurality of first branch pipes (402) are fixedly installed on both sides of the first liquid inlet pipe (401); a plurality of first atomizing nozzles (403) are fixedly installed at the bottom of the first branch pipe (402); a desulfurization mechanism (5) is fixedly installed inside the lower tower body (3); the desulfurization mechanism (5) comprises a second liquid inlet pipe (501); a second branch pipe (502) is fixedly installed on both sides of the second liquid inlet pipe (501); a plurality of second atomizing nozzles (503) are fixedly installed at the bottom of the second branch pipe (502).

2. The ultra-low emission desulfurization and denitrification device for a lime kiln according to claim 1, characterized in that: A partition plate (6) is fixedly mounted on the bottom of the inner cavity of the upper tower body (2), and a return pipe (7) is fixedly mounted on the bottom of one side of the surface of the upper tower body (2).

3. The ultra-low emission desulfurization and denitrification device for a lime kiln according to claim 1, characterized in that: An exhaust pipe (8) is fixedly mounted on the top of the upper tower body (2), and an air guide pipe (9) is fixedly mounted on the middle portion of the other side of the surface of the upper tower body (2).

4. The ultra-low emission desulfurization and denitrification device for a lime kiln according to claim 1, characterized in that: A storage box (10) is fixedly mounted on the bottom of the lower tower body (3), a discharge pipe (11) is fixedly mounted on one side of the storage box (10), and an electric valve (12) is fixedly mounted on one side of the discharge pipe (11).

5. The ultra-low emission desulfurization and denitrification device for a lime kiln according to claim 4, characterized in that: An air intake pipe (13) is fixedly mounted on one side of the storage box (10), and a filter box (14) is threadedly connected to one side of the air intake pipe (13).

6. The ultra-low emission desulfurization and denitrification device for a lime kiln according to claim 5, characterized in that: A waste cavity (15) is provided inside the filter box (14), a filter screen (16) is fixedly mounted on the inner wall of the filter box (14) on the side close to the air inlet pipe (13), and a connecting pipe (17) is fixedly mounted on one side of the filter box (14).

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