Efficient desulfurization and denitrification integrated equipment

Abstract

Efficient desulfurization and denitrification integrated equipment comprises a vertically-arranged cylindrical tower body, a smoke inlet pipe is arranged on one side of the lower portion of the tower body, a smoke outlet pipe is arranged at the upper end of the tower body, the efficient desulfurization and denitrification integrated equipment further comprises a filter tank located on the outer side of the tower body and communicated with the bottom of the tower body, a pump is arranged on one side of the filter tank, and the axis of the smoke inlet pipe is horizontal and does not intersect with the axis of the tower body; the inner wall of the tower body is provided with a spiral second spray pipe which is the same as the spiral conveying direction of the flue gas, the inner side of the tower body is also provided with a second spray head which is opposite to the spiral conveying direction of the flue gas, the upper end of the second spray pipe is provided with a plug, and the lower end of the second spray pipe is connected with the pump through a second liquid supply pipe; flue gas can spirally rise in the tower body under the blocking effect of the inner wall of the tower body, so that the residence time of the flue gas in the tower body is prolonged, the amount of the flue gas entering from the flue gas inlet pipe is not affected, and the flue gas desulfurization and denitrification work is completed by matching with a second spraying pipe and a second spraying head on the second spraying pipe; the desulfurization and denitrification effect of the desulfurization and denitrification integrated equipment is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection devices, in particular to a highly efficient desulfurization and denitrification integrated equipment. Background Art

[0002] The desulfurization and denitrification tower is a commonly used environmental protection equipment for flue gas treatment. It usually includes a tower body and a smoke inlet pipe is provided on one side of the lower part of the tower body. The flue gas to be treated can enter the tower body through the smoke inlet pipe and complete the desulfurization and denitrification work in the tower body by spraying. However, the smoke inlet pipe of the existing desulfurization and denitrification tower is directly connected to the inside of the tower body. The flue gas directly enters the tower body through the smoke inlet pipe and completes the desulfurization and denitrification work, which makes the actual residence time of the flue gas in the tower body short, resulting in insufficient spraying, affecting the desulfurization and denitrification effect.

[0003] The application document with application number CN202223321512.7 in the patent library discloses a flue gas desulfurizer based on a calcium-based desulfurizer, which arranges spiral blades inside the desulfurization tower to enable the exhaust gas to rise in a spiral along the spiral blades, so as to prolong the desulfurization time of the exhaust gas in the desulfurization tower, and at the same time completes the desulfurization work by the desulfurizer moving downward with the rotation of the spiral blades. However, on the one hand, the structure of the exhaust gas spirally rising by arranging spiral blades is relatively complicated, and the arrangement of the spiral blades is bound to affect the fluidity of the exhaust gas inside the desulfurization tower. On the other hand, the sulfur absorption work is completed by the desulfurizer moving downward with the rotation of the spiral blades, which still cannot guarantee the full reaction between the waste and desulfurization periods, and ultimately the desulfurization work of the desulfurization tower still has great limitations. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a highly efficient integrated desulfurization and denitrification equipment.

[0005] The technical solution of this utility model is as follows:

[0006] A highly efficient integrated desulfurization and denitrification equipment comprises a vertically arranged cylindrical tower body, a smoke inlet pipe is provided on one side of the lower part of the tower body, and a smoke outlet pipe is provided on the upper end. The smoke can enter the tower body through the smoke inlet pipe, and after completing the desulfurization and denitrification work inside the tower body, the smoke is discharged through the smoke outlet pipe.

[0007] As one of the core technical concepts of the utility model, the axis of the smoke inlet pipe is horizontal and does not intersect with the axis of the tower body. Under the blocking effect of the inner wall of the tower body, it can provide a rotational guiding effect for the flue gas, and finally enable the flue gas to spirally rise inside the tower body, thereby increasing the residence time of the flue gas inside the tower body, and finally increasing the desulfurization and denitrification time of the flue gas.

[0008] As another core technical concept of the utility model, a spiral second spray pipe is provided on the inner wall of the tower body, and the spiral direction of the second spray pipe is the same as the spiral conveying direction of the flue gas. A second nozzle is also provided on the inner side thereof, and the spraying direction of the second nozzle is opposite to the spiral conveying direction of the flue gas. The integrated desulfurization and denitrification equipment also includes a filter tank located outside the tower body and connected to the bottom of the tower body. A pump is provided on one side of the filter tank. A plug is provided at the upper end of the second spray pipe, and the lower end is connected to the pump through a second liquid supply pipe. Based on this structure, the amount of flue gas entering from the smoke inlet pipe will not be affected, and the flue gas inside the tower body spirals up along the inner wall of the tower body, and cooperates with the reverse injection of the second spray head to complete the desulfurization and denitrification work of the flue gas, thereby significantly improving the desulfurization and denitrification working effect of the integrated desulfurization and denitrification equipment.

[0009] As described above, a highly efficient integrated desulfurization and denitrification equipment, as a preferred embodiment, also includes a first spray pipe arranged on the upper inner part of the tower body, and a first nozzle on the lower side of the first spray pipe with a downward spraying direction. The first spray pipe is connected to the pump through a first liquid supply pipe. When the flue gas volume is large, the flue gas that cannot smoothly spiral up along the inner wall of the tower body can still complete the desulfurization and denitrification work under the action of the first nozzle, thereby ensuring the effect of the flue gas desulfurization and denitrification work.

[0010] As described above, in the highly efficient integrated desulfurization and denitrification equipment, the pitch of the second spray pipe is 0.8-1.3 times the inner diameter of the tower body, so as to ensure the consistency of the second spray pipe and the spiral rising path of the flue gas, and ultimately ensure that the second nozzle on the second spray pipe can complete the desulfurization and denitrification of the flue gas more efficiently.

[0011] As a preferred embodiment, in order to further ensure the desulfurization and denitrification effect of the flue gas under the action of the second spray pipe and the second nozzle, the number of spiral turns of the second spray pipe is not less than 3.

[0012] As described above, a highly efficient integrated desulfurization and denitrification equipment, specifically speaking, includes a circular main pipe arranged in contact with the inner wall of the tower body, and branch pipes arranged in a "M" shape are arranged inside the main pipe. The first nozzle is arranged on the lower side of the branch pipe to ensure the adequacy of the spraying of the first nozzle, and finally to ensure the adequacy of the mixing of the flue gas and the denitrification and desulfurization agent, so as to ensure the desulfurization and denitrification effect of the flue gas.

[0013] Specifically speaking, the structure of the second nozzle includes a connecting seat arranged on the inner side of the second spray pipe and a transfer tube rotatably arranged on the inner side of the connecting seat, a nozzle is arranged on one side of the transfer tube, and a cavity connecting the second spray pipe and the transfer tube is arranged inside the connecting seat, and the axis of the transfer tube is horizontal and intersects with the axis of the tower body. Based on this structure, the direction of the nozzle can be adjusted to ensure that the injection direction of the second nozzle can be more accurately in the opposite direction of the spiral conveying direction of the flue gas, thereby ultimately ensuring the desulfurization and denitrification effect of the flue gas.

[0014] In order to ensure that the flue gas entering the smoke inlet pipe can fully complete the desulfurization and denitrification work, the inner diameter of the smoke inlet pipe is 1 / 3-1 / 2 of the inner diameter of the tower body.

[0015] To ensure that the smoke can spirally rise smoothly under the blocking effect of the inner wall of the tower body, the vertical distance between the axis of the smoke inlet pipe and the axis of the tower body is not less than 1 / 2 of the inner diameter of the smoke inlet pipe.

[0016] The beneficial effects of the utility model are as follows: the utility model is a highly efficient integrated desulfurization and denitrification equipment, the axis of the smoke inlet pipe is horizontal and does not intersect with the axis of the tower body, so that the flue gas can spirally rise inside the tower body under the blocking effect of the inner wall of the tower body, thereby increasing the residence time of the flue gas inside the tower body, and the amount of flue gas entering from the smoke inlet pipe will not be affected, and the second spray pipe with the same direction as the spiral conveying direction of the flue gas and the second nozzle thereon that sprays in the opposite direction of the spiral conveying direction of the flue gas can complete the desulfurization and denitrification work of the flue gas, thereby significantly improving the desulfurization and denitrification effect of the integrated desulfurization and denitrification equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0018] In the attached picture:

[0019] Figure 1 It is a structural schematic diagram of the integrated desulfurization and denitrification equipment in the embodiment;

[0020] Figure 2 This is a schematic diagram of the connection structure between the smoke inlet pipe and the tower body in the embodiment;

[0021] Figure 3 Schematic diagram of the internal structure of the tower body in the embodiment;

[0022] The components represented by the reference numerals in the figure are:

[0023] 1. Tower body; 2. Smoke inlet pipe; 3. Smoke outlet pipe; 4. Filter tank; 5. Pump; 6. First liquid supply pipe; 7. Second liquid supply pipe; 8. First spray pipe; 9. First nozzle; 10. Second spray pipe; 11. Second nozzle. DETAILED DESCRIPTION

[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0025] Example

[0026] This embodiment provides an efficient integrated desulfurization and denitrification device. Figure 1 , comprising a vertically arranged cylindrical tower body 1, a smoke inlet pipe 2 is provided on one side of the lower part of the tower body 1, and a smoke outlet pipe 3 is provided on the upper end. The flue gas can enter the tower body 1 through the smoke inlet pipe 2, and after completing the desulfurization and denitrification work inside the tower body 1, it is discharged through the smoke outlet pipe 3. The structure of the integrated desulfurization and denitrification equipment (the above-mentioned efficient integrated desulfurization and denitrification equipment) is described in detail below.

[0027] In this embodiment, combined with Figure 2 As one of the core technical concepts of the utility model, the axis of the smoke inlet pipe 2 is horizontal and does not intersect with the axis of the tower body 1. Under the blocking effect of the inner wall of the tower body 1, it can provide a rotational guiding effect for the flue gas, and finally enable the flue gas to spirally rise inside the tower body 1, thereby increasing the residence time of the flue gas inside the tower body 1, and finally increasing the desulfurization and denitrification time of the flue gas.

[0028] As a preferred implementation, in order to ensure that the flue gas entering the smoke inlet pipe 2 can fully complete the desulfurization and denitrification work, the inner diameter of the smoke inlet pipe 2 is 1 / 3-1 / 2 of the inner diameter of the tower body 1.

[0029] As a further preferred embodiment, in order to ensure that the smoke can smoothly spiral upward under the blocking effect of the inner wall of the tower body 1 , the vertical distance between the axis of the smoke inlet pipe 2 and the axis of the tower body 1 is not less than 1 / 2 of the inner diameter of the smoke inlet pipe 2 .

[0030] In order to increase the velocity of the smoke entering the smoke inlet pipe 2 and further ensure that the smoke entering the smoke inlet pipe 2 can smoothly spiral upward under the blocking effect of the inner wall of the tower body 1, the smoke outlet pipe 3 is also connected to a suction fan.

[0031] In this embodiment, combined with Figure 3As another core technical concept of the utility model, a spiral second spray pipe 10 is provided on the inner wall of the tower body 1, and the spiral direction of the second spray pipe 10 is the same as the spiral conveying direction of the flue gas. A second nozzle 11 is also provided on the inner side thereof, and the spraying direction of the second nozzle 11 is opposite to the spiral conveying direction of the flue gas. The desulfurization and denitrification integrated equipment also includes a filter tank 4 located outside the tower body 1 and connected to the bottom of the tower body 1, and a pump 5 is provided on one side of the filter tank 4. A plug is provided at the upper end of the second spray pipe 10, and the lower end is connected to the pump 5 through a second liquid supply pipe 7. On the basis of this structure, the amount of flue gas entering from the smoke inlet pipe 2 will not be affected, and the flue gas inside the tower body 1 spirally rises along the inner wall of the tower body 1, and cooperates with the reverse injection of the second spray head to complete the desulfurization and denitrification work of the flue gas, which significantly improves the desulfurization and denitrification work effect of the desulfurization and denitrification integrated equipment.

[0032] As a preferred embodiment, the pitch of the second spray pipe 10 is 0.8-1.3 times the inner diameter of the tower body 1, so as to ensure the consistency of the second spray pipe 10 and the spiral rising path of the flue gas, and ultimately ensure that the second nozzle 11 on the second spray pipe 10 can more efficiently complete the desulfurization and denitrification of the flue gas.

[0033] As a further preferred embodiment, in order to further ensure the desulfurization and denitrification effects of the flue gas under the action of the second spray pipe 10 and the second nozzle 11, the number of spiral turns of the second spray pipe 10 is not less than 3.

[0034] Specifically speaking, the structure of the second nozzle 11 includes a connecting seat arranged on the inner side of the second spray pipe 10 and a transfer tube rotatably arranged on the inner side of the connecting seat, a nozzle is arranged on one side of the transfer tube, and a cavity connecting the second spray pipe 10 and the transfer tube is arranged inside the connecting seat. The axis of the transfer tube is horizontal and intersects with the axis of the tower body 1. Based on this structure, the direction of the nozzle can be adjusted to ensure that the injection direction of the second nozzle 11 can be more accurately in the opposite direction of the spiral conveying direction of the flue gas, thereby ultimately ensuring the desulfurization and denitrification effect of the flue gas.

[0035] In this embodiment, the integrated desulfurization and denitrification equipment also includes a first spray pipe 8 arranged at the upper inner part of the tower body 1, and a first nozzle 9 with a downward spraying direction at the lower side of the first spray pipe 8. The first spray pipe 8 is connected to the pump 5 through the first liquid supply pipe 6. When the flue gas volume is large, the flue gas that cannot smoothly spiral up along the inner wall of the tower body 1 can still complete the desulfurization and denitrification work under the action of the first nozzle 9, thereby ensuring the effect of the flue gas desulfurization and denitrification work.

[0036] Specifically speaking, the structure of the first spray pipe 8 includes a circular main pipe arranged in contact with the inner wall of the tower body 1, and branch pipes arranged in a "M" shape are arranged inside the main pipe. The first nozzle 9 is arranged on the lower side of the branch pipe to ensure the adequacy of the spraying of the first nozzle 9, and finally to ensure the adequacy of the mixing of the flue gas and the denitrification and desulfurization agent, so as to ensure the desulfurization and denitrification effect of the flue gas.

Claims

1. An efficient integrated desulfurization and denitrification equipment, characterized in that: The invention comprises a vertically arranged cylindrical tower body (1), a smoke inlet pipe (2) is provided on one side of the lower part of the tower body (1), and a smoke outlet pipe (3) is provided on the upper end, and is characterized in that: The axis of the smoke inlet pipe (2) is horizontal and does not intersect with the axis of the tower body (1); A spiral second spray pipe (10) is provided on the inner wall of the tower body (1), the spiral direction of the second spray pipe (10) being the same as the spiral conveying direction of the smoke, and a second nozzle (11) is also provided inside the second spray pipe (10), and the spraying direction of the second nozzle (11) is opposite to the spiral conveying direction of the smoke; It also comprises a filter tank (4) located outside the tower body (1) and connected to the bottom of the tower body (1); a pump (5) is provided on one side of the filter tank (4); a plug is provided at the upper end of the second spray pipe (10), and the lower end is connected to the pump (5) via a second liquid supply pipe (7).

2. The highly efficient integrated desulfurization and denitrification equipment according to claim 1, characterized in that: It also includes a first spray pipe (8) arranged at the upper inner part of the tower body (1), and a first spray head (9) at the lower side of the first spray pipe (8) with a spraying direction facing downwards; The first spray pipe (8) is connected to the pump (5) via a first liquid supply pipe (6).

3. An efficient integrated desulfurization and denitrification device according to claim 1 or 2, characterized in that: The pitch of the second spray pipe (10) is 0.8-1.3 times the inner diameter of the tower body (1).

4. The highly efficient integrated desulfurization and denitrification equipment according to claim 3 is characterized in that: The number of spiral turns of the second spray pipe (10) is not less than 3.

5. The highly efficient integrated desulfurization and denitrification equipment according to claim 2, characterized in that: The first spray pipe (8) comprises a circular main pipe arranged in contact with the inner wall of the tower body (1), and branch pipes arranged in a "M" shape are arranged inside the main pipe, and the first spray head (9) is arranged on the lower side of the branch pipe.

6. The highly efficient integrated desulfurization and denitrification equipment according to claim 1 or 2, characterized in that: The second spray head (11) comprises a connection seat arranged inside the second spray pipe (10) and a transfer tube rotatably arranged inside the connection seat, and a nozzle is arranged on one side of the transfer tube; A cavity communicating with the second spray pipe (10) and the adapter pipe is provided inside the connection seat, and the axis of the adapter pipe is horizontal and intersects with the axis of the tower body (1).

7. The highly efficient integrated desulfurization and denitrification equipment according to claim 1 or 2, characterized in that: The inner diameter of the smoke inlet pipe (2) is 1 / 3 to 1 / 2 of the inner diameter of the tower body (1).

8. The highly efficient integrated desulfurization and denitrification equipment according to claim 7, characterized in that: The vertical distance between the axis of the smoke inlet pipe (2) and the axis of the tower body (1) is not less than 1 / 2 of the inner diameter of the smoke inlet pipe (2).

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