Automatic oxidation control system for wet desulfurization

Abstract

The utility model relates to the technical field of wet desulphurization, propose a kind of wet desulphurization automation oxidation control system, comprising: base;Absorption tower, it is fixedly installed at the top of base, the top of base is respectively fixedly installed with control host and box;Oxidation detection component and air blowing component, oxidation detection component and air blowing component are respectively arranged at the top of box, one end of oxidation detection component extends to the inside of absorption tower, by the oxidation detection component, box, control host, stirring component and air blowing component of setting, oxidation detection component overflow and after the detection of slurry flow into box in pipeline, personnel operation control host starts stirring component and air blowing component, stirring component stirs slurry, air blowing component exports to the gas delivery in stirring component, gas is evenly distributed in slurry to cooperate with stirring component to prevent its precipitation crystallization, to solve the problem that slurry is prone to precipitation crystallization phenomenon in prior art, leading to recovery pipeline blockage.

Description

Technical Field

[0001] This utility model relates to the field of wet desulfurization technology, specifically to an automated oxidation control system for wet desulfurization. Background Technology

[0002] Among the many air pollutants emitted by coal-fired power units, SO2 and dust pose significant environmental hazards and require effective emission control. Limestone-gypsum wet desulfurization technology is the most widely used due to its high desulfurization efficiency, mature technology, and readily available raw materials. Its simple principle is that sulfur dioxide in the flue gas is first absorbed by the moisture in the absorbent, and then reacts with calcium carbonate in the absorbent to form calcium sulfite. The calcium sulfite is oxidized by the introduced oxygen, eventually forming gypsum crystals.

[0003] A Chinese utility model patent (Announcement No.: CN221846692U) discloses an oxidation air volume control device for wet flue gas desulfurization. The oxidation air volume control device includes a sampling pipe, a slurry oxidation analyzer, a control unit, and an oxidation fan. The sampling pipe has multiple sampling ports that extend into the absorption tower to collect slurry at different liquid levels within the tower. The slurry oxidation analyzer is connected to the sampling pipe and measures the collected slurry. The control unit is connected to the slurry oxidation analyzer to receive measurement signals from it. The outlet port of the oxidation fan extends into the absorption tower and is connected to the control unit to receive control signals from it. By measuring the sulfite concentration in the slurry at different liquid levels, the oxidation effect in different areas can be obtained more comprehensively, allowing for more precise adjustment of the oxidation air volume, ensuring the oxidation effect, and avoiding slurry overflow and energy loss from the oxidation fan.

[0004] However, in implementing the relevant technologies, the following problems were found in the oxidation air volume control equipment of the above-mentioned wet flue gas desulfurization: In the above technical solution, the recovery device returns the slurry to the absorption tower through the collection cylinder and recovery pipeline. The slurry is prone to precipitation and crystallization, which leads to the problem of blockage of the recovery pipeline. Therefore, an automated oxidation control system for wet desulfurization is proposed. Utility Model Content

[0005] This invention proposes an automated oxidation control system for wet desulfurization, which solves the problem of slurry precipitation and crystallization leading to blockage of recovery pipelines in related technologies.

[0006] The technical solution of this utility model is as follows: An automated oxidation control system for wet desulfurization, comprising: Base; An absorption tower is fixedly installed on top of the base, and a control host and a housing are fixedly installed on top of the base respectively; An oxidation detection component and an aeration component are respectively disposed on the top of the housing, with one end of the oxidation detection component extending into the interior of the absorption tower; A stirring assembly is disposed inside the housing, with one end of the stirring assembly being fixedly connected to a connector through the housing, and one end of the air blowing assembly being connected to the connector.

[0007] Preferably, the oxidation detection assembly includes an oxidation analyzer, a branch pipe, a connecting pipe, and a solenoid valve. The oxidation analyzer is fixedly installed on the top of the housing. The drain of the oxidation analyzer is connected to the housing via a pipe. The branch pipe is located on the top of the oxidation analyzer. The connecting pipe is located on the outer wall of the branch pipe. One end of the connecting pipe extends into the interior of the absorption tower. The solenoid valve is located on the outer wall of the connecting pipe. The control host is electrically connected to the oxidation analyzer and the solenoid valve, respectively.

[0008] Preferably, the stirring assembly includes a motor, a stirring shaft, a stirring rod, and nozzles. The motor is fixedly installed on one side of the housing. The output end of the motor passes through the housing and is fixedly connected to the stirring shaft. The stirring rod is located on the outer side wall of the stirring shaft. The nozzles are located on both sides of the stirring rod. One end of the stirring shaft passes through the housing and is connected to the connector. The control host is electrically connected to the motor.

[0009] Preferably, the aeration assembly includes an oxidation blower and an air supply pipe. The oxidation blower is fixedly installed on the top of the housing. The output end of the oxidation blower is fixedly connected to the air supply pipe. One end of the air supply pipe is connected to the connector. The control host is electrically connected to the oxidation blower.

[0010] Preferably, the connector is a rotary joint.

[0011] Preferably, a pump body is fixedly installed on one side of the housing, the input end of the pump body extends into the interior of the housing, the output end of the pump body is fixedly connected to a delivery pipe, one end of the delivery pipe is connected to the absorption tower, and the control host is electrically connected to the pump body.

[0012] Preferably, an oxidation blower two is fixedly installed on the top of the base, and the output end of the oxidation blower two extends into the interior of the absorption tower through a one-way pipe. The control host is electrically connected to the oxidation blower two.

[0013] The working principle and beneficial effects of this utility model are as follows: The system includes an oxidation detection component, a housing, a control unit, a stirring component, and an aeration component. Overflow from the oxidation detection component and slurry after detection flow into the housing through pipes. Personnel operate the control unit to start the stirring and aeration components. The stirring component stirs the slurry, and the aeration component delivers gas to the stirring component and discharges it. The gas is evenly distributed in the slurry, working with the stirring component to prevent precipitation and crystallization. This solves the problem of slurry precipitation and crystallization in existing technologies, which can cause blockages in the recovery pipeline. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional sectional view of the box structure of this utility model.

[0016] In the diagram: 1. Base; 2. Absorption tower; 3. Control unit; 4. Housing; 5. Oxidation detection component; 51. Oxidation analyzer; 52. Branch pipe; 53. Connecting pipe; 54. Solenoid valve; 6. Stirring component; 61. Motor; 62. Stirring shaft; 63. Stirring rod; 64. Nozzle; 7. Gas blowing component; 71. Oxidation blower one; 72. Gas delivery pipe; 8. Connecting parts; 9. Pump body; 10. Delivery pipe; 11. Oxidation blower two. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see Figure 1 - Figure 3This utility model provides an automated oxidation control system for wet desulfurization, comprising: a base 1, an absorption tower 2 fixedly installed on the top of the base 1, a control host 3 and a housing 4 fixedly installed on the top of the base 1, an oxidation blower 11 fixedly installed on the top of the base 1, the output end of the oxidation blower 11 extending into the interior of the absorption tower 2 through a one-way pipe, a one-way valve installed on the one-way pipe, the control host 3 and the oxidation blower 11 being electrically connected, an oxidation detection component 5 and an aeration component 7 respectively disposed on the top of the housing 4, one end of the oxidation detection component 5 extending into the interior of the absorption tower 2, a stirring component 6, the stirring component 6 being disposed through the interior of the housing 4, one end of the stirring component 6 being fixedly connected to a connector 8 through the housing 4, the connector 8 being a rotary joint, and one end of the aeration component 7 being connected to the connector 8; During use, the operator starts the oxidation blower 11 by operating the control host 3. The oxidation blower 11 delivers gas to the absorption tower 2 through a one-way pipe. The oxidation detection component 5 detects the oxidation concentration of the slurry at different heights in the absorption tower 2 and feeds back the detection value to the control host 3. The control host 3 determines whether to increase or decrease the oxidation air volume based on the oxidation index of the slurry. The control host 3 generates a control signal and sends it to the oxidation blower 11 to adjust the speed of the motor in the oxidation blower 11, thereby increasing or decreasing the air volume. The overflow from the oxidation detection component 5 and the slurry after detection flow into the tank 4 through the pipe. The operator starts the stirring component 6 and the aeration component 7 by operating the control host 3. The stirring component 6 stirs the slurry in the tank 4, and the aeration component 7 delivers gas to the stirring component 6 and discharges it. The gas is evenly distributed in the slurry, which, together with the stirring component 6, prevents precipitation and crystallization.

[0019] In this embodiment, as Figure 1 As shown, the oxidation detection assembly 5 includes an oxidation analyzer 51, a branch pipe 52, a connecting pipe 53, and a solenoid valve 54. The oxidation analyzer 51 is fixedly installed on the top of the housing 4. The drain of the oxidation analyzer 51 is connected to the housing 4 through a pipe. The branch pipe 52 is located on the top of the oxidation analyzer 51. The connecting pipe 53 is located on the outer wall of the branch pipe 52. One end of the connecting pipe 53 extends into the interior of the absorption tower 2. The solenoid valve 54 is located on the outer wall of the connecting pipe 53. The control host 3 is electrically connected to the oxidation analyzer 51 and the solenoid valve 54 respectively. The connecting pipes 53 are distributed at different heights. The operator of the control host 3 opens the solenoid valves 54 on the connecting pipes 53 at different heights. The slurry in the absorption tower 2 flows into the oxidation analyzer 51 through the connecting pipes 53 and the branch pipes 52. The oxidation analyzer 51 detects the oxidation concentration of the slurry, which is convenient for detecting the oxidation concentration of the slurry at different heights. The oxidation analyzer 51 feeds back the detection value to the control host 3. The control host 3 determines whether to increase or decrease the oxidation air volume based on the slurry oxidation index. The control host 3 generates a control signal and sends it to the second oxidation fan 11. The motor in the second oxidation fan 11 adjusts its speed to realize the automatic control of increasing and decreasing the air volume.

[0020] In this embodiment, as Figure 2 and Figure 3 As shown, the stirring assembly 6 includes a motor 61, a stirring shaft 62, a stirring rod 63, and a nozzle 64. A one-way valve is installed on the nozzle 64. The motor 61 is fixedly installed on one side of the housing 4. The output end of the motor 61 passes through the housing 4 and is fixedly connected to the stirring shaft 62. The stirring rod 63 is located on the outer wall of the stirring shaft 62. The nozzles 64 are located on both sides of the stirring rod 63. One end of the stirring shaft 62 passes through the housing 4 and is connected to the connector 8. The control host 3 is electrically connected to the motor 61. The aeration assembly 7 includes an oxidation blower 71 and an air supply pipe 72. The oxidation blower 71 is fixedly installed on the top of the housing 4. The output end of the oxidation blower 71 is fixedly connected to the air supply pipe 72. One end of the air supply pipe 72 is connected to the connector 8. The control host 3 is electrically connected to the oxidation blower 71. The overflow from the oxidation analyzer 51 and the slurry after testing flow into the tank 4 through the pipe. The operator operates the control host 3 to start the motor 61 and the oxidation blower 71. The output end of the motor 61 drives the stirring shaft 62 and the stirring rod 63 to rotate. The nozzle 64 follows the rotation of the stirring rod 63 and stirs the slurry through the stirring rod 63. The oxidation blower 71 delivers gas to the stirring shaft 62 through the gas supply pipe 72 and the connector 8. The gas enters the stirring rod 63 and is discharged through the nozzle 64, so that the gas is evenly distributed in the slurry. The stirring rod 63 helps to prevent precipitation and crystallization and prevents the delivery pipe 10 from being blocked.

[0021] In this embodiment, as Figure 2 As shown, a pump body 9 is fixedly installed on one side of the housing 4. The input end of the pump body 9 extends into the interior of the housing 4. The output end of the pump body 9 is fixedly connected to a conveying pipe 10. One end of the conveying pipe 10 is connected to the absorption tower 2. The control host 3 is electrically connected to the pump body 9. The operator controls the main unit 3 to start the pump body 9, which then transports the slurry in the tank 4 through the delivery pipe 10 to the absorption tower 2 for continued use.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automated oxidation control system for wet desulfurization, characterized in that, include: Base (1); The absorption tower (2) is fixedly installed on the top of the base (1), and the top of the base (1) is fixedly installed with the control host (3) and the box (4). An oxidation detection component (5) and an aeration component (7) are respectively disposed on the top of the housing (4), and one end of the oxidation detection component (5) extends into the interior of the absorption tower (2). The stirring assembly (6) is disposed inside the box (4). One end of the stirring assembly (6) is fixedly connected to the connector (8) through the box (4). One end of the air blowing assembly (7) is connected to the connector (8).

2. The automated oxidation control system for wet desulfurization according to claim 1, characterized in that: The oxidation detection component (5) includes an oxidation analyzer (51), a branch pipe (52), a connecting pipe (53), and a solenoid valve (54). The oxidation analyzer (51) is fixedly installed on the top of the housing (4). The drain of the oxidation analyzer (51) is connected to the housing (4) through a pipe. The branch pipe (52) is located on the top of the oxidation analyzer (51). The connecting pipe (53) is located on the outer wall of the branch pipe (52). One end of the connecting pipe (53) extends into the interior of the absorption tower (2). The solenoid valve (54) is located on the outer wall of the connecting pipe (53). The control host (3) is electrically connected to the oxidation analyzer (51) and the solenoid valve (54) respectively.

3. The automated oxidation control system for wet desulfurization according to claim 1, characterized in that: The stirring assembly (6) includes a motor (61), a stirring shaft (62), a stirring rod (63), and a nozzle (64). The motor (61) is fixedly installed on one side of the housing (4). The output end of the motor (61) passes through the housing (4) and is fixedly connected to the stirring shaft (62). The stirring rod (63) is located on the outer side wall of the stirring shaft (62). The nozzles (64) are located on both sides of the stirring rod (63). One end of the stirring shaft (62) passes through the housing (4) and is connected to the connector (8). The control host (3) is electrically connected to the motor (61).

4. The automated oxidation control system for wet desulfurization according to claim 1, characterized in that: The aeration assembly (7) includes an oxidation blower (71) and an air supply pipe (72). The oxidation blower (71) is fixedly installed on the top of the housing (4). The output end of the oxidation blower (71) is fixedly connected to the air supply pipe (72). One end of the air supply pipe (72) is connected to the connector (8). The control host (3) is electrically connected to the oxidation blower (71).

5. The automated oxidation control system for wet desulfurization according to claim 1, characterized in that: The connector (8) is a rotary joint.

6. The automated oxidation control system for wet desulfurization according to claim 1, characterized in that: A pump body (9) is fixedly installed on one side of the housing (4). The input end of the pump body (9) extends into the interior of the housing (4). The output end of the pump body (9) is fixedly connected to a conveying pipe (10). One end of the conveying pipe (10) is connected to the absorption tower (2). The control host (3) is electrically connected to the pump body (9).

7. The automated oxidation control system for wet desulfurization according to claim 1, characterized in that: An oxidation blower 2 (11) is fixedly installed on the top of the base (1). The output end of the oxidation blower 2 (11) extends into the interior of the absorption tower (2) through a one-way pipe. The control host (3) is electrically connected to the oxidation blower 2 (11).

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