Desulfurization and dust removal device for tar distillation flue gas

Abstract

The desulfurization and dust removal device comprises a desulfurization tower, a liquid storage chamber is arranged at the lower end part of the desulfurization tower, a gas inlet chamber is arranged at the lower end of the desulfurization tower, and a smoke outlet chamber is arranged at the upper end of the desulfurization tower; a gas uniformizing plate is arranged in the desulfurizing tower, gas uniformizing holes are uniformly distributed in the gas uniformizing plate, the gas uniformizing holes are of vertical straight tube structures, and the gas uniformizing plate is arranged at the upper end of the gas inlet chamber. The dust removal plate is arranged in the device, the dust removal work is mainly achieved through the structural design of the dust removal holes, and due to the fact that the dust removal holes are each of a conical structure, in the process of penetrating through the dust removal holes, smoke can be gradually blocked by the hole walls of the dust removal holes, smoke particles and the like can be correspondingly gathered on the hole walls, and the function of gathering the smoke particles is achieved.

Description

Technical Field

[0001] The utility model relates to flue gas dust removal technical equipment in the technical field of environmental protection, in particular to a desulfurization and dust removal device for tar distillation flue gas. Background Art

[0002] In the prior art, the flue gas from tar distillation contains a large amount of sulfur elements and a large amount of smoke particles, so it is necessary to desulfurize and remove dust from the flue gas.

[0003] The desulfurization and dust removal devices in the prior art, for example, the "a spray desulfurization tower" disclosed in the publication (announcement) number: CN208852651U, in which a spray desulfurization liquid is formed through a spray pipeline, and desulfurization is carried out after contacting with the flue gas. The mist desulfurization liquid has a better desulfurization effect.

[0004] For example, the technical solution of the publication (announcement) number: CN216418920U discloses "a desulfurization tower". The technical solution of the desulfurization tower is to arrange multiple layers of desulfurization equipment in the tower body, as well as a pH measurement component, etc., which can complete the desulfurization work.

[0005] However, in the above technical solutions, most of them only complete the desulfurization work, but do not involve the specific dust removal work. Although the smoke particles in the flue gas can be removed by contacting the spray liquid with the flue gas, there are usually still many smoke particles in the flue gas.

[0006] In addition, when the flue gas desulfurization in the prior art is treated by spraying liquid, it is necessary to ensure the effective range of the spraying liquid and the dispersion range of the flue gas. If the structural setting is unreasonable, there will be a dead angle problem, resulting in ineffective flue gas treatment.

[0007] Therefore, in order to solve the above problems, it is necessary to develop a desulfurization and dust removal device for tar distillation flue gas with a reasonable structure that can improve work efficiency and work quality. Utility Model Content

[0008] The purpose of the utility model is to provide a desulfurization and dust removal device for tar distillation flue gas in view of the shortcomings of the prior art; its technical scheme is as follows:

[0009] A desulfurization and dust removal device for tar distillation flue gas comprises a desulfurization tower, a liquid storage chamber is arranged at the lower end of the desulfurization tower, an air inlet chamber is arranged at the lower end of the desulfurization tower, and a smoke outlet chamber is arranged at the upper end of the desulfurization tower; an air equalizing plate is arranged in the desulfurization tower, and evenly distributed air equalizing holes are arranged on the air equalizing plate, and the air equalizing holes are vertical straight cylinder structures, and the air equalizing plate is arranged at the upper end of the air inlet chamber;

[0010] A dust removal plate is also arranged above the air distribution plate, and the dust removal plate is provided with evenly distributed dust removal holes, and the dust removal holes are arranged as a conical hole structure, and the bottom diameter of the dust removal holes is larger than the top diameter; the flue gas flowing upward from the air distribution plate enters the dust removal holes accordingly;

[0011] A spray pipe is also provided above the dust removal plate. The spray pipe is arranged horizontally. A sprayer is provided on the spray pipe. The spray pipe extends to the outside of the desulfurization tower and is connected and installed in the desulfurization chamber. The desulfurization chamber is equipped with a pump body, which sprays the desulfurization liquid in the desulfurization chamber into the desulfurization tower through the spray pipe.

[0012] Furthermore, the angle between the hole wall of the dust removal hole and the vertical line is °.

[0013] Furthermore, the hole wall of the tapered hole on the dust removal plate is arranged in the structural form of a stepped groove.

[0014] Furthermore, an air outlet fan is correspondingly installed in the air outlet chamber at the top of the desulfurization tower.

[0015] Furthermore, a sprayer is installed on the side wall of the desulfurization tower. The sprayer is arranged in the area between the dust removal plate and the spray pipe. The sprayer is arranged horizontally and sprays in a horizontal direction. It is used in conjunction with the sprayer on the upper spray pipe.

[0016] Furthermore, the sprayers on the side wall of the desulfurization tower are arranged in six rows with even intervals, and are connected to the desulfurization chamber through spray pipes, and electric control valves are installed on the pipes of the vertically arranged sprayers and the horizontally arranged sprayers.

[0017] Furthermore, the liquid storage chamber is provided with a drain pipe, and an electric control valve is correspondingly installed on the drain pipe.

[0018] Beneficial effects: The utility model has the following beneficial effects:

[0019] 1) The bottom of the device is provided with a liquid storage chamber for receiving the sprayed desulfurization liquid; a gas equalizing plate is provided on the top, and the gas equalizing plate is provided with evenly distributed gas equalizing holes, which are mainly used to evenly distribute the incoming flue gas so that the flue gas is evenly dispersed;

[0020] 2) A dust removal plate is provided in the device. The design of the dust removal plate is mainly to achieve dust removal through the structural design of the dust removal hole. Since the dust removal hole is a conical structure, the smoke will be gradually blocked by the hole wall of the dust removal hole during the process of passing through the dust removal hole, and the smoke particles will be correspondingly gathered at the hole wall, thereby achieving the function of gathering the smoke particles;

[0021] 3) The dust removal holes in the device are of a conical structure, so when the smoke flows upward, the smoke speed will become faster when passing through the dust removal holes, accelerating the flow of smoke; the dust removal holes in the device are also evenly distributed, and also have the function of dispersing the smoke, so that the smoke is evenly distributed;

[0022] 4) The spray pipe above the device can spray desulfurization liquid into the desulfurization tower through the cooperation of the desulfurization chamber and the sprayer. The desulfurization liquid can neutralize the internal sulfur elements with the smoke on one hand, and can clean the dust removal plate and the gas equalization plate below on the other hand. The dust removal holes on the dust removal plate are cleaned while the smoke particles are collected on the wall of the dust removal holes, so as to achieve the dual purpose of desulfurization and dust removal;

[0023] 5) The specific structure of the dust removal hole in this device is further restricted, and the hole wall of the tapered hole is set to a stepped groove structure. After such a design, the stepped groove structure can further block the dust particles in the flue gas when the flue gas passes through, and the overall structural design is more reasonable and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the structural diagram of the utility model;

[0025] Figure 2 for Figure 1 Middle AA section view;

[0026] Figure 3 for Figure 1 Middle BB section view;

[0027] Figure 4 This is the structural diagram of the dust removal plate in the utility model. DETAILED DESCRIPTION

[0028] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0029] Example 1

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a desulfurization and dust removal device for tar distillation flue gas of this embodiment comprises a desulfurization tower 1, a liquid storage chamber 2 is arranged at the lower end of the desulfurization tower 1, an air inlet chamber 3 is arranged at the lower end of the desulfurization tower 1, and a smoke outlet chamber 4 is arranged at the upper end of the desulfurization tower 1; an air equalizing plate 5 is arranged in the desulfurization tower 1 of this embodiment, and uniformly distributed air equalizing holes 6 are arranged on the air equalizing plate 5 of this embodiment, and the air equalizing holes 6 of this embodiment are vertical straight cylinder structures, and the air equalizing plate 5 of this embodiment is arranged at the upper end of the air inlet chamber 3;

[0031] A dust removal plate 7 is further provided above the air distribution plate 5 of this embodiment, and the dust removal plate 7 is provided with uniformly distributed dust removal holes 8. The dust removal holes 8 of this embodiment are set as a conical hole structure, and the bottom diameter of the dust removal holes 8 is larger than the top diameter; the flue gas flowing upward from the air distribution plate 5 enters the dust removal holes 8 accordingly;

[0032] A spray pipe 9 is further provided above the dust removal plate 7 of the present embodiment. The spray pipe 9 of the present embodiment is arranged horizontally. A sprayer 10 is provided on the spray pipe 9. The spray pipe 9 extends to the outside of the desulfurization tower 1 and is connected and installed in the desulfurization chamber 11. The desulfurization chamber 11 is installed with a pump body, which sprays the desulfurization liquid in the desulfurization chamber 11 into the desulfurization tower 1 through the spray pipe 9.

[0033] In this embodiment, the angle between the hole wall of the dust removal hole 8 and the vertical line is 15°; in this embodiment, an exhaust fan is also installed in the exhaust chamber 12 at the top of the desulfurization tower 1.

[0034] A sprayer 10 is also installed on the side wall of the desulfurization tower 1 of this embodiment. The sprayer 10 is arranged in the area between the dust removal plate 7 and the spray pipe 9. The sprayer 10 is arranged horizontally and sprays in a horizontal direction. It is used in conjunction with the sprayer 10 on the upper spray pipe 9.

[0035] In this embodiment, the sprayers 10 on the side wall of the desulfurization tower 1 are arranged in six rows with even intervals, and are connected to the desulfurization chamber 11 through the spray pipes 9, and the pipes of the vertically arranged sprayers 10 and the horizontally arranged sprayers 10 are respectively installed with electric control valves 13.

[0036] The liquid storage chamber 2 of the present embodiment is provided with a drain pipe 14 , and an electric control valve 13 is correspondingly installed on the drain pipe 14 .

[0037] In the technical solution of this embodiment, firstly, a liquid storage chamber is arranged at the bottom for receiving the sprayed desulfurization liquid; then an air equalizing plate is arranged on the top, and evenly distributed air equalizing holes are arranged on the air equalizing plate, which are mainly used to evenly distribute the incoming flue gas so that the flue gas is evenly dispersed.

[0038] Then a dust removal plate is arranged on the top. The design of the dust removal plate mainly realizes dust removal through the structural design of the dust removal holes. The dust removal holes are arranged in a conical structure and have many functions.

[0039] On the one hand, due to the conical structure, when the smoke flows upward, it passes through the dust removal holes, and the smoke speed will become faster, accelerating the smoke circulation; on the other hand, the dust removal holes are also evenly arranged, and also have the function of dispersing the smoke, making the smoke evenly distributed; the third point is that since the dust removal holes are conical structures, in the process of passing through the dust removal holes, the smoke will gradually be blocked by the hole wall of the dust removal hole, and the smoke particles will gather at the hole wall accordingly, thereby achieving the function of gathering the smoke particles.

[0040] In this embodiment, the upper spray pipe can spray desulfurization liquid into the interior of the desulfurization tower through the cooperation of the desulfurization chamber and the sprayer. On the one hand, the desulfurization liquid can neutralize the internal sulfur elements with the smoke, and on the other hand, it can clean the dust removal plate and the air equalization plate below. While the smoke particles are collected on the hole walls of the dust removal holes on the dust removal plates, the dust removal holes are cleaned, thereby achieving the dual purposes of desulfurization and dust removal.

[0041] And although the dust removal hole is set in a conical structure, it does not affect the cleaning of the desulfurization liquid sprayed from above, and it can still flow into the conical dust removal hole. The structural setting is also reasonable.

[0042] Example 2

[0043] like Figure 4 As shown, a desulfurization and dust removal device for tar distillation flue gas of this embodiment comprises a desulfurization tower 1, a liquid storage chamber 2 is provided at the lower end of the desulfurization tower 1, an air inlet chamber 3 is provided at the lower end of the desulfurization tower 1, and a smoke outlet chamber 4 is provided at the upper end of the desulfurization tower 1; an air equalizing plate 5 is provided in the desulfurization tower 1 of this embodiment, and uniformly distributed air equalizing holes 6 are provided on the air equalizing plate 5 of this embodiment, and the air equalizing holes 6 of this embodiment are vertical straight cylinder structures, and the air equalizing plate 5 of this embodiment is provided at the upper end of the air inlet chamber 3;

[0044] A dust removal plate 7 is further provided above the air distribution plate 5 of this embodiment, and the dust removal plate 7 is provided with uniformly distributed dust removal holes 8. The dust removal holes 8 of this embodiment are set as a conical hole structure, and the bottom diameter of the dust removal holes 8 is larger than the top diameter; the flue gas flowing upward from the air distribution plate 5 enters the dust removal holes 8 accordingly;

[0045] A spray pipe 9 is further provided above the dust removal plate 7 of the present embodiment. The spray pipe 9 of the present embodiment is arranged horizontally. A sprayer 10 is provided on the spray pipe 9. The spray pipe 9 extends to the outside of the desulfurization tower 1 and is connected and installed in the desulfurization chamber 11. The desulfurization chamber 11 is installed with a pump body, which sprays the desulfurization liquid in the desulfurization chamber 11 into the desulfurization tower 1 through the spray pipe 9.

[0046] In this embodiment, the angle between the hole wall of the dust removal hole 8 and the vertical line is 15°; the hole wall of the conical hole on the dust removal plate 7 in this embodiment is set to the structural form of a stepped groove 71; and an exhaust fan is also installed in the exhaust chamber 12 at the top of the desulfurization tower 1 in this embodiment.

[0047] A sprayer 10 is also installed on the side wall of the desulfurization tower 1 of this embodiment. The sprayer 10 is arranged in the area between the dust removal plate 7 and the spray pipe 9. The sprayer 10 is arranged horizontally and sprays in a horizontal direction. It is used in conjunction with the sprayer 10 on the upper spray pipe 9.

[0048] In this embodiment, the sprayers 10 on the side wall of the desulfurization tower 1 are arranged in six rows with even intervals, and are connected to the desulfurization chamber 11 through the spray pipes 9, and the pipes of the vertically arranged sprayers 10 and the horizontally arranged sprayers 10 are respectively installed with electric control valves 13.

[0049] The liquid storage chamber 2 of the present embodiment is provided with a drain pipe 14 , and an electric control valve 13 is correspondingly installed on the drain pipe 14 .

[0050] like Figure 4 As shown, the technical solution of this embodiment is based on the technical solution of Example 1, and the specific structure of the dust removal hole is further restricted, and the hole wall of the conical hole is set to a step groove structure. After such a design, the step groove structure can further block the dust particles in the flue gas when the flue gas passes through, and the overall structural design is more reasonable and effective.

[0051] The above-mentioned specific implementation mode is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention and the scope of the claims. All equivalent changes and modifications made according to the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A desulfurization and dust removal device for tar distillation flue gas, characterized in that: The desulfurization tower (1) comprises a liquid storage chamber (2) at the lower end of the desulfurization tower (1), an air inlet chamber (3) at the lower end of the desulfurization tower (1), and a smoke outlet chamber (4) at the upper end of the desulfurization tower (1); an air equalizing plate (5) is arranged inside the desulfurization tower (1), and the air equalizing plate (5) is provided with evenly distributed air equalizing holes (6), and the air equalizing holes (6) are vertical straight cylinder structures; the air equalizing plate (5) is arranged at the upper end of the air inlet chamber (3); A dust removal plate (7) is also arranged above the air balancing plate (5), and the dust removal plate (7) is provided with evenly distributed dust removal holes (8), and the dust removal holes (8) are arranged as a conical hole structure, and the bottom diameter of the dust removal holes (8) is larger than the top diameter; the flue gas flowing upward from the air balancing plate (5) enters the dust removal holes (8) accordingly; A spray pipe (9) is also arranged above the dust removal plate (7). The spray pipe (9) is arranged horizontally. A sprayer (10) is arranged on the spray pipe (9). The spray pipe (9) extends to the outside of the desulfurization tower (1) and is connected to the desulfurization chamber (11). The desulfurization chamber (11) is equipped with a pump body, which sprays the desulfurization liquid in the desulfurization chamber (11) into the desulfurization tower (1) through the spray pipe (9).

2. The desulfurization and dust removal device for tar distillation flue gas according to claim 1, characterized in that: The angle between the hole wall of the dust removal hole (8) and the vertical line is 15°.

3. The desulfurization and dust removal device for tar distillation flue gas according to claim 1, characterized in that: The hole wall of the tapered hole on the dust removal plate (7) is arranged in the structural form of a stepped groove (71).

4. The desulfurization and dust removal device for tar distillation flue gas according to claim 1, characterized in that: An air outlet fan is also correspondingly installed in the air outlet chamber (12) at the top of the desulfurization tower (1).

5. The desulfurization and dust removal device for tar distillation flue gas according to claim 1, characterized in that: A sprayer (10) is also installed on the side wall of the desulfurization tower (1). The sprayer (10) is arranged in the area between the dust removal plate (7) and the spray pipe (9). The sprayer (10) is arranged horizontally and sprays in a horizontal direction. It is used in conjunction with the sprayer (10) on the upper spray pipe (9).

6. The desulfurization and dust removal device for tar distillation flue gas according to claim 1, characterized in that: The sprayers (10) on the side wall of the desulfurization tower (1) are arranged in six rows at even intervals, and are connected to the desulfurization chamber (11) through spray pipes (9) respectively, and electric control valves (13) are installed on the pipes of the vertically arranged sprayers (10) and the horizontally arranged sprayers (10) respectively.

7. The desulfurization and dust removal device for tar distillation flue gas according to claim 1, characterized in that: The liquid storage chamber (2) is provided with a drainage pipe (14), and an electric control valve (13) is correspondingly installed on the drainage pipe (14).

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