Desulfurization device for coal engineering

Abstract

The utility model relates to the technical field of coal engineering, in particular to a desulfurization device for coal engineering, which comprises a desulfurization tower, an exhaust bin is arranged outside the desulfurization tower, a plurality of layering plates are fixedly connected in the desulfurization tower, and a desulfurizer pipeline is fixedly connected in the middle of each layering plate. A plurality of spray heads are fixedly connected to the outer side of the desulfurizing agent pipeline, a plurality of connecting pipes are fixedly connected to the outer side of the desulfurizing tower, and electrically-controlled electric valves are fixedly connected to the middles of the connecting pipes. The flue gas desulfurization device has the advantages that when multi-layer desulfurization treatment is needed, the electric valve of the lower connecting pipe is closed, flue gas passes through the desulfurizer water curtain and then penetrates through the layering plate to continue subsequent desulfurization treatment, and when few-layer desulfurization treatment is needed, the electric valve below is opened, and the electric valve below is closed. And the flue gas subjected to primary desulfurization treatment can be directly and preferentially discharged from the connection pipe opened below, enters the exhaust bin and the exhaust pipe and is discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of coal engineering, in particular to a desulfurization device for coal engineering. Background Art

[0002] Desulfurization equipment for coal engineering is mainly used in coal-burning processes such as the power industry and the steel industry. Through chemical reactions such as absorption and oxidation, sulfur dioxide in the flue gas is converted into sulfuric acid or sulfates, thereby reducing sulfur dioxide emissions and meeting environmental protection requirements. The desulfurization process of coal flue gas generally uses a sprayed desulfurizer for gas-liquid reaction. During the gas-liquid reaction, insufficient desulfurization may occur during the flue gas treatment process. Therefore, it is necessary to design a desulfurization device that can control the frequency of gas-liquid reaction. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a desulfurization device for coal engineering, which effectively solves the deficiencies of the prior art.

[0004] The purpose of the utility model is achieved through the following technical scheme: a desulfurization device for coal engineering, comprising a desulfurization tower, an exhaust bin is arranged on the outside of the desulfurization tower, a plurality of layered plates are fixedly connected to the inside of the desulfurization tower, a desulfurizer pipeline is fixedly connected to the middle of the layered plates, a plurality of nozzles are fixedly connected to the outside of the desulfurizer pipeline, a plurality of connecting pipes are fixedly connected to the outside of the desulfurization tower, and an electric valve is fixedly connected to the middle of each connecting pipe.

[0005] Optionally, an air inlet pipe is fixedly connected to the bottom of the desulfurization tower. The air inlet pipe is annular and has a plurality of air inlet holes on the top. The air inlet pipe is connected to the flue gas duct of the coal project.

[0006] The above technical solution is adopted: by setting an annular air inlet pipe at the top of the desulfurization tower, the flue gas generated by the coal project enters the bottom of the desulfurization tower for desulfurization treatment, and the dispersed air inlet holes can make the flue gas entering the interior dispersed and fully react with the desulfurizer, thereby accelerating the desulfurization efficiency.

[0007] Optionally, an exhaust pipe is fixedly connected to the top of the exhaust bin, and the nozzles are equidistantly distributed on the outside of the desulfurizer pipeline. The nozzles are atomizing nozzles, and the water mist sprayed from each layer of the nozzles forms a surface water curtain. Each layer of the nozzles is located below each layer of connecting pipes.

[0008] The above technical solution is adopted: by arranging multiple layers of connecting pipes with electric valves in the desulfurization tower, when multi-layer desulfurization treatment is required, the electric valve of the lower connecting pipe is closed, and the flue gas passes through the desulfurizer water curtain and then passes through the stratification plate to continue the subsequent desulfurization treatment. When fewer layers of desulfurization treatment are required, the lower electric valve is opened, and the flue gas that has undergone preliminary desulfurization treatment can be directly discharged from the lower opened connecting pipe into the exhaust bin and the exhaust pipe for discharge, so that the device can control the number of times the flue gas is desulfurized by the opening and closing of the electric valve, and more sufficient desulfurization treatment can be performed when the sulfur content in the flue gas is high.

[0009] Optionally, a sulfur content sensor is provided below the inner end of the connecting pipe. When the sulfur content sensor detects that the sulfur content passing through the connecting pipe exceeds a standard, the electric valve of the corresponding layer is closed.

[0010] The above technical solution is adopted: by setting a sulfur content sensor under the connecting pipe, it is possible to monitor the flue gas after desulfurization in real time. When the sulfur content exceeds the standard, the connecting pipe is closed in time to allow the flue gas to enter the next layer for further desulfurization treatment, thereby avoiding insufficient flue gas desulfurization.

[0011] Optionally, a plurality of connecting holes are provided on the layering plate, and a drain port is provided at the bottom of the desulfurization tower.

[0012] The above technical solution is adopted: by setting connecting holes on the layered plates, the desulfurizer after desulfurization treatment can pass through the connecting holes into the lower layer and react with the flue gas again, so that the desulfurizer and the flue gas are fully reacted, and the flue gas can also pass through the connecting holes into the upper layer, so that the multiple layers of the desulfurization tower are connected to perform multi-layer desulfurization treatment, and finally the desulfurizer is discharged from the drain port for recovery or treatment.

[0013] The utility model has the following advantages:

[0014] 1. The desulfurization device for coal engineering is provided with multiple layers of connecting pipes with electric valves in the desulfurization tower. When multiple layers of desulfurization are required, the electric valve of the lower connecting pipe is closed, and the flue gas passes through the desulfurizer water curtain and then passes through the stratification plate for subsequent desulfurization. When fewer layers of desulfurization are required, the lower electric valve is opened, and the flue gas that has undergone preliminary desulfurization can be directly discharged from the lower opened connecting pipe into the exhaust bin and the exhaust pipe for discharge, so that the device can control the number of times the flue gas is desulfurized by the opening and closing of the electric valve, and can perform more sufficient desulfurization when the sulfur content in the flue gas is high.

[0015] 2. The desulfurization device for coal engineering sets an annular air inlet pipe on the top of the desulfurization tower, so that the flue gas generated by the coal engineering enters from the bottom of the desulfurization tower for desulfurization treatment. The dispersed air inlet holes can disperse the flue gas entering the interior and fully react with the desulfurizer, thereby accelerating the desulfurization efficiency. A sulfur content sensor is set below the connecting pipe, so that the flue gas after desulfurization treatment can be monitored in real time. When the sulfur content exceeds the standard, the connecting pipe is closed in time to allow the flue gas to enter the next layer for further desulfurization treatment, thereby avoiding insufficient flue gas desulfurization.

[0016] 3. The desulfurization device for coal engineering projects sets connecting holes on the layered plates so that the desulfurizer after desulfurization treatment can pass through the connecting holes into the lower layer and react with the flue gas again, so that the desulfurizer and the flue gas can fully react. The flue gas can also pass through the connecting holes into the upper layer, so that the multiple layers of the desulfurization tower are connected to perform multi-layer desulfurization treatment, and finally the desulfurizer is discharged from the drain port for recovery or treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 For this utility model Figure 2 The structural diagram at A in the middle;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0022] In the figure: 1- desulfurization tower, 2- exhaust chamber, 3- layering plate, 4- desulfurizer pipeline, 5- nozzle, 6- connecting pipe, 7- electric valve, 8- air inlet pipe, 9- air inlet hole, 10- exhaust pipe, 11- sulfur content sensor, 12- connecting hole, 13- drain port. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figures 1 to 5As shown, a desulfurization device for coal engineering includes a desulfurization tower 1. An exhaust bin 2 is arranged outside the desulfurization tower 1. A plurality of layered plates 3 are fixedly connected inside the desulfurization tower 1. A desulfurizer pipeline 4 is fixedly connected to the middle of the layered plates 3. A plurality of nozzles 5 are fixedly connected to the outside of the desulfurizer pipeline 4. A plurality of connecting pipes 6 are fixedly connected to the outside of the desulfurization tower 1. Electric valves 7 are fixedly connected to the middle of the connecting pipes 6.

[0025] Embodiment 1: An air inlet pipe 8 is fixedly connected to the bottom of the desulfurization tower 1. The air inlet pipe 8 is annular and has a plurality of air inlet holes 9 on the top. The air inlet pipe 8 is connected to the flue gas duct of the coal project. By arranging the annular air inlet pipe 8 on the top of the desulfurization tower 1, the flue gas generated by the coal project enters the bottom of the desulfurization tower 1 for desulfurization treatment. The dispersed air inlet holes 9 can disperse the flue gas entering the interior and fully react with the desulfurizer, thereby accelerating the desulfurization efficiency.

[0026] Embodiment 2: An exhaust pipe 10 is fixedly connected to the top of the exhaust bin 2, and the nozzles 5 are equidistantly distributed on the outside of the desulfurizer pipeline 4. The nozzles 5 are atomizing nozzles. The water mist sprayed by each layer of nozzles 5 forms a planar water curtain. Each layer of nozzles 5 is located below each layer of connecting pipes 6. By arranging multiple layers of connecting pipes 6 with electric valves 7 in the desulfurization tower 1, when multi-layer desulfurization treatment is required, the electric valve 7 of the lower connecting pipe 6 is closed, and the flue gas passes through the desulfurizer water curtain and then passes through the stratification plate 3 to continue the subsequent desulfurization treatment. When fewer layers of desulfurization treatment are required, the lower electric valve 7 is opened, and the flue gas that has undergone preliminary desulfurization treatment can be directly discharged from the lower opened connecting pipe 6 into the exhaust bin 2 and the exhaust pipe 10 to complete the discharge, so that the device can control the number of times the flue gas is desulfurized by the opening and closing of the electric valve 7, and perform a more sufficient desulfurization treatment on the flue gas when the sulfur content in the flue gas is high.

[0027] Embodiment 3: A sulfur content sensor 11 is provided below the inner end of the connecting pipe 6. When the sulfur content sensor 11 detects that the sulfur content passing through the connecting pipe 6 exceeds the standard, the electric valve 7 of the corresponding layer is closed. By arranging the sulfur content sensor 11 below the connecting pipe 6, the flue gas after desulfurization treatment can be monitored in real time. When the sulfur content exceeds the standard, the connecting pipe 6 is closed in time to allow the flue gas to enter the next layer for further desulfurization treatment, thereby avoiding insufficient flue gas desulfurization.

[0028] Embodiment 4: A plurality of connecting holes 12 are provided on the stratified plate 3, and a drain port 13 is provided at the bottom of the desulfurization tower 1. By providing the connecting holes 12 on the stratified plate 3, the desulfurizer after desulfurization treatment can pass through the connecting holes 12 into the lower layer and react with the flue gas again, so that the desulfurizer and the flue gas can fully react, and the flue gas can also pass through the connecting holes 12 into the upper layer, so that the multiple layers of the desulfurization tower 1 are connected to perform multi-layer desulfurization treatment, and finally the desulfurizer is discharged from the drain port 13 for recovery or treatment.

[0029] The working principle of the utility model is as follows:

[0030] S1. Multiple layers of connecting pipes 6 with electric valves 7 are arranged in the desulfurization tower 1. When multiple layers of desulfurization treatment is required, the electric valve 7 of the lower connecting pipe 6 is closed, and the flue gas passes through the desulfurizer water curtain and then passes through the stratification plate 3 to continue the subsequent desulfurization treatment. When fewer layers of desulfurization treatment are required, the lower electric valve 7 is opened, and the flue gas that has undergone preliminary desulfurization treatment can be directly discharged from the lower opened connecting pipe 6 into the exhaust bin 2 and the exhaust pipe 10 to complete the discharge, so that the device can control the number of times the flue gas is desulfurized by the opening and closing of the electric valve 7, and perform more sufficient desulfurization treatment on the flue gas when the sulfur content in the flue gas is high;

[0031] S2. A sulfur content sensor 11 is arranged below the connecting pipe 6 to enable real-time monitoring of the flue gas after desulfurization treatment. When the sulfur content exceeds the standard, the connecting pipe 6 is closed in time to allow the flue gas to enter the next layer for further desulfurization treatment, thereby avoiding insufficient flue gas desulfurization.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The desulfurization device for coal engineering is provided with multiple layers of connecting pipes 6 with electric valves 7 in a desulfurization tower 1. When multiple layers of desulfurization treatment is required, the electric valve 7 of the lower connecting pipe 6 is closed, and the flue gas passes through the desulfurizer water curtain and then passes through the stratification plate 3 to continue the subsequent desulfurization treatment. When fewer layers of desulfurization treatment are required, the lower electric valve 7 is opened, and the flue gas that has undergone preliminary desulfurization treatment can be directly discharged from the lower opened connecting pipe 6 into the exhaust bin 2 and the exhaust pipe 10 to complete the discharge, so that the device can control the number of times the flue gas is desulfurized by the opening and closing of the electric valve 7, and perform a more sufficient desulfurization treatment on the flue gas when the sulfur content in the flue gas is high.

[0034] 2. The desulfurization device for coal engineering, by arranging an annular air inlet pipe 8 at the top of the desulfurization tower 1, allows the flue gas generated by the coal engineering to enter from the bottom of the desulfurization tower 1 for desulfurization treatment. The dispersed air inlet holes 9 can disperse the flue gas entering the interior and fully react with the desulfurizer, thereby accelerating the desulfurization efficiency. By arranging a sulfur content sensor 11 below the connecting pipe 6, it is possible to monitor the flue gas after desulfurization treatment in real time. When the sulfur content exceeds the standard, the connecting pipe 6 is closed in time to allow the flue gas to enter the next layer for further desulfurization treatment, thereby avoiding insufficient flue gas desulfurization.

[0035] 3. The desulfurization device for coal engineering is provided with connecting holes 12 on the layering plate 3, so that the desulfurizer after desulfurization treatment can pass through the connecting holes 12 into the lower layer and react with the flue gas again, so that the desulfurizer and the flue gas are fully reacted, and the flue gas can also pass through the connecting holes 12 into the upper layer, so that the multiple layers of the desulfurization tower 1 are connected to perform multi-layer desulfurization treatment, and finally the desulfurizer is discharged from the drain port 13 for recovery or treatment.

Claims

1. A desulfurization device for coal engineering, characterized in that: The invention comprises a desulfurization tower (1), wherein an exhaust chamber (2) is arranged outside the desulfurization tower (1), a plurality of stratified plates (3) are fixedly connected inside the desulfurization tower (1), a desulfurization agent pipeline (4) is fixedly connected in the middle of the stratified plates (3), a plurality of nozzles (5) are fixedly connected in the outer side of the desulfurization agent pipeline (4), a plurality of connecting pipes (6) are fixedly connected in the outer side of the desulfurization tower (1), and an electric valve (7) is fixedly connected in the middle of each connecting pipe (6).

2. A desulfurization device for coal engineering according to claim 1, characterized in that: An air intake pipe (8) is fixedly connected to the bottom of the desulfurization tower (1); the air intake pipe (8) is annular; a plurality of air intake holes (9) are provided on the top of the air intake pipe (8); and the air intake pipe (8) is connected to a smoke pipe of a coal project.

3. A desulfurization device for coal engineering according to claim 2, characterized in that: The top of the exhaust bin (2) is fixedly connected to an exhaust pipe (10), and the nozzles (5) are evenly distributed on the outside of the desulfurizer pipeline (4). The nozzles (5) are atomizing nozzles, and the water mist sprayed by each layer of the nozzles (5) forms a planar water curtain. Each layer of the nozzles (5) is located below each layer of the connecting pipe (6).

4. A desulfurization device for coal engineering according to claim 3, characterized in that: A sulfur content sensor (11) is provided below the inner end of each connecting pipe (6). When the sulfur content sensor (11) detects that the sulfur content passing through the connecting pipe (6) exceeds the standard, the electric valve (7) of the corresponding layer is closed.

5. A desulfurization device for coal engineering according to claim 4, characterized in that: The stratified plate (3) is provided with a plurality of connecting holes (12), and the bottom of the desulfurization tower (1) is provided with a liquid discharge port (13).

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