Desulfurizing agent reduction regeneration device

Abstract

The utility model belongs to the technical field of desulfurizing agents, and particularly relates to a desulfurizing agent reduction regeneration device. Comprising a regeneration reaction furnace, a dust remover, an activated carbon adsorption tower, a hydrolysis reaction tower, a circulating fan and a nitrogen heating device which are sequentially connected, the nitrogen heating device and the regeneration reaction furnace are connected through a pipeline to form a circulation loop, and a nitrogen supply pipeline is further connected to the pipeline between the circulating fan and the nitrogen heating device. An exhaust port of the regeneration reaction furnace is connected with a gas monitoring device, a temperature monitoring device and a pressure monitoring device are arranged in the regeneration reaction furnace, a heat preservation jacket is arranged outside the regeneration reaction furnace, and an electric heating device is arranged in the heat preservation jacket. Through the steps of nitrogen heating circulation, dust removal purification, temperature and pressure monitoring, exhaust composition monitoring and the like, efficient and environment-friendly regeneration of the desulfurizing agent is achieved. The device not only improves the regeneration efficiency and the service life of the desulfurizing agent, but also reduces the operation cost and the pollution to the environment, and has important industrial application value.

Description

Technical Field

[0001] The utility model belongs to the technical field of desulfurizing agents, and in particular relates to a desulfurizing agent reduction and regeneration device. Background Art

[0002] As an important energy medium, blast furnace gas is widely used in the industrial field. However, blast furnace gas often contains sulfides, which not only cause corrosion damage to subsequent equipment, but also cause environmental pollution when discharged into the atmosphere. Therefore, desulfurization of blast furnace gas to reduce its sulfide content is an important step to ensure the safe and environmentally friendly use of industrial gas.

[0003] As a key material for desulfurization treatment, desulfurizer will gradually become saturated and lose its desulfurization ability after absorbing sulfide. In order to extend the service life of desulfurizer and reduce operating costs, desulfurizer needs to be regenerated to restore its desulfurization activity. Traditional desulfurizer regeneration methods usually have problems such as low regeneration efficiency and complicated operation process, which limits its application in the industrial field. Therefore, it is necessary to develop an efficient and simple desulfurizer reduction regeneration device. Utility Model Content

[0004] In view of the above shortcomings in the prior art, the purpose of the utility model is to provide a desulfurizing agent reduction and regeneration device, which realizes efficient and environmentally friendly regeneration of the desulfurizing agent through nitrogen heating circulation, dust removal and purification, temperature and pressure monitoring, and exhaust gas component monitoring. The device not only improves the regeneration efficiency and service life of the desulfurizing agent, but also reduces the operating cost and pollution to the environment, and has important industrial application value.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The desulfurizer reduction regeneration device comprises a regeneration reactor, a dust collector, an activated carbon adsorption tower, a hydrolysis reaction tower, a circulating fan and a nitrogen heating device which are connected in sequence. The nitrogen heating device is connected to the regeneration reactor through a pipeline to form a circulation loop. A nitrogen supply pipeline is also connected to the pipeline between the circulating fan and the nitrogen heating device. The exhaust port of the regeneration reactor is connected to a gas monitoring device. A temperature monitoring device and a pressure monitoring device are arranged inside the regeneration reactor. An insulation jacket is arranged outside the regeneration reactor, and an electric heating device is arranged inside the insulation jacket.

[0007] The nitrogen supply pipeline is provided with a control valve.

[0008] An emergency discharge valve is arranged on the exhaust pipe of the regeneration reactor.

[0009] A gas distributor is provided at the nitrogen inlet in the regeneration reactor to uniformly spray the heated nitrogen into the regeneration reactor to form a uniform airflow field, thereby ensuring that the nitrogen flow can fully penetrate into the desulfurizer particles and improving the analytical regeneration effect of the desulfurizer.

[0010] The exhaust port of the hydrolysis reaction tower is also connected with a gas exhaust pipeline.

[0011] The desulfurizing agent reduction and regeneration device also includes a control system, which is electrically connected to the gas monitoring device, the temperature monitoring device, the pressure monitoring device, the electric heating device, the control valve and the emergency discharge valve.

[0012] The desulfurizer reduction and regeneration device has the following working principle:

[0013] Nitrogen enters the nitrogen heating device from the nitrogen supply pipeline, and the high-temperature nitrogen generated after heating is sent to the regeneration reactor through the gas distributor. In the regeneration reactor, the high-temperature nitrogen heats the desulfurizer to achieve its reduction regeneration. The gas discharged from the regeneration reactor first enters the dust collector to remove the solid particles therein, and then enters the activated carbon adsorption tower. In the activated carbon adsorption tower, the sulfide and nitrogen oxide in the gas are effectively removed. Then, the gas enters the hydrolysis reaction tower to further remove organic matter such as VOCs (volatile organic compounds) and dioxins, and finally obtains purified nitrogen. The purified nitrogen is sent to the nitrogen heating device again through the circulating fan for heating, and then returns to the regeneration reactor for the next round of reduction regeneration process.

[0014] The temperature of the nitrogen in the regeneration reactor is monitored in real time by the temperature monitoring device. When the temperature is too low, the control system will automatically turn on the electric heating device in the insulation jacket to maintain the temperature stability in the regeneration reactor and ensure the continuity and efficiency of the regeneration process.

[0015] At the same time, the pressure in the regeneration reactor is monitored in real time through the pressure monitoring device. When the pressure is insufficient, the control system will open the control valve and fill the regeneration reactor with nitrogen through the nitrogen supply pipeline to supplement the pressure. When abnormal pressure occurs during the regeneration process, the control system will quickly open the emergency discharge valve to release the pressure to ensure the safety of equipment and personnel.

[0016] The exhaust gas composition of the regeneration reactor is continuously monitored by the gas monitoring device. When the total sulfur content in the exhaust gas drops to the specified range, it indicates that the reduction and regeneration process of the desulfurizer has been completed. At this time, the gas in the desulfurizer reduction and regeneration device will be discharged to a safe area through the gas discharge pipeline.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] (1) The desulfurizer reduction and regeneration device described in the utility model reduces energy consumption and improves the energy utilization efficiency of the entire system through the recycling of nitrogen. At the same time, it realizes the efficient reduction and regeneration of the desulfurizer, significantly improves the recycling rate of the desulfurizer, and reduces the replacement frequency and cost of the desulfurizer;

[0019] (2) The desulfurizer reduction and regeneration device described in the utility model ensures the cleanliness of the exhaust gas and complies with environmental protection standards through multi-stage purification technology; at the same time, through the intelligent control system, it realizes precise control and monitoring of the regeneration process, further enhancing the operating safety performance and stability and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the desulfurizing agent reduction and regeneration device described in the utility model;

[0021] In the figure: 1. Regeneration reactor; 2. Dust collector; 3. Activated carbon adsorption tower; 4. Hydrolysis reaction tower; 5. Circulation fan; 6. Nitrogen heating device; 7. Circulation loop; 8. Nitrogen supply pipeline; 9. Gas monitoring device; 10. Temperature monitoring device; 11. Pressure monitoring device; 12. Insulation jacket; 13. Electric heating device; 14. Control valve; 15. Emergency discharge valve; 16. Gas distributor; 17. Gas discharge pipeline. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Example 1

[0024] like Figure 1 As shown, the desulfurizer reduction regeneration device comprises a regeneration reactor 1, a dust collector 2, an activated carbon adsorption tower 3, a hydrolysis reaction tower 4, a circulating fan 5 and a nitrogen heating device 6 which are connected in sequence. The nitrogen heating device 6 is connected to the regeneration reactor 1 through a pipeline to form a circulation loop 7. A nitrogen supply pipeline 8 is also connected to the pipeline between the circulating fan 5 and the nitrogen heating device 6. A gas monitoring device 9 is connected to the exhaust port of the regeneration reactor 1. A temperature monitoring device 10 and a pressure monitoring device 11 are arranged inside the regeneration reactor 1. An insulation jacket 12 is arranged outside the regeneration reactor 1, and an electric heating device 13 is arranged inside the insulation jacket 12.

[0025] The nitrogen supply pipeline 8 is provided with a control valve 14 .

[0026] An emergency discharge valve 15 is provided on the exhaust pipe of the regeneration reactor 1 .

[0027] A gas distributor 16 is provided at the nitrogen inlet of the regeneration reaction furnace 1 .

[0028] The exhaust port of the hydrolysis reaction tower 4 is also connected to a gas exhaust pipeline 17 .

[0029] The desulfurizing agent reduction and regeneration device also includes a control system, which is electrically connected to the gas monitoring device 9, the temperature monitoring device 10, the pressure monitoring device 11, the electric heating device 13, the control valve 14 and the emergency discharge valve 15 respectively.

[0030] When working, the specific steps are as follows:

[0031] Nitrogen enters the nitrogen heating device 6 from the nitrogen supply pipeline 8 and is converted into high-temperature nitrogen after heating. The high-temperature nitrogen is uniformly sprayed into the regeneration reactor 1 through the gas distributor 16 to form a uniform airflow field, ensuring that the nitrogen flow can fully penetrate into the desulfurizer particles. The high-temperature nitrogen heats the desulfurizer in the regeneration reactor 1 to achieve its reduction regeneration. The gas discharged from the regeneration reactor 1 first enters the dust collector 2 to remove solid particles. The gas after dust removal enters the activated carbon adsorption tower 3 to remove sulfides and nitrogen oxides in the gas. Then, the gas enters the hydrolysis reaction tower 4 to further remove organic matter such as VOCs and dioxins. The purified nitrogen is sent to the nitrogen heating device 6 again through the circulating fan 5 to form a nitrogen circulation loop 7. After heating, the nitrogen returns to the regeneration reactor 1 to carry out the next round of reduction regeneration process.

[0032] The temperature of the nitrogen in the regeneration reactor 1 is monitored in real time by the temperature monitoring device 10. When the temperature is too low, the control system automatically turns on the electric heating device 13 in the insulation jacket 12 to maintain the temperature in the regeneration reactor 1 stable, ensuring the continuity and efficiency of the regeneration process.

[0033] At the same time, the pressure in the regeneration reactor 1 is monitored in real time by the pressure monitoring device 11. When the pressure is insufficient, the control system opens the control valve 14 and fills nitrogen into the regeneration reactor 1 through the nitrogen supply pipeline 8 to supplement the pressure. When an abnormal pressure occurs during the regeneration process, the control system quickly opens the emergency discharge valve 15 to release the pressure to ensure the safety of equipment and personnel.

[0034] The gas monitoring device 9 continuously monitors the exhaust gas composition of the regeneration reactor 1. When the total sulfur content in the exhaust gas drops to within a specified range, it indicates that the reduction regeneration process of the desulfurizing agent has been completed.

[0035] At this time, the gas in the desulfurizing agent reduction and regeneration device is discharged to a safe area through the gas discharge pipeline 17 to ensure that the discharged gas meets environmental protection standards.

Claims

1. A desulfurizing agent reduction and regeneration device, characterized in that: The invention comprises a regeneration reactor (1), a dust collector (2), an activated carbon adsorption tower (3), a hydrolysis reactor (4), a circulating fan (5) and a nitrogen heating device (6) which are connected in sequence. The nitrogen heating device (6) is connected to the regeneration reactor (1) through a pipeline to form a circulation loop (7). The pipeline between the circulating fan (5) and the nitrogen heating device (6) is also connected to a nitrogen supply pipeline (8). The exhaust port of the regeneration reactor (1) is connected to a gas monitoring device (9). The regeneration reactor (1) is provided with a temperature monitoring device (10) and a pressure monitoring device (11). The regeneration reactor (1) is provided with a heat preservation jacket (12) outside the regeneration reactor (1), and an electric heating device (13) is provided inside the heat preservation jacket (12).

2. The desulfurizing agent reduction regeneration device according to claim 1, characterized in that: The nitrogen supply pipeline (8) is provided with a control valve (14).

3. The desulfurizing agent reduction regeneration device according to claim 1, characterized in that: An emergency discharge valve (15) is provided on the exhaust pipe of the regeneration reaction furnace (1).

4. The desulfurizing agent reduction regeneration device according to claim 1, characterized in that: A gas distributor (16) is provided at the nitrogen inlet of the regeneration reaction furnace (1).

5. The desulfurizing agent reduction regeneration device according to claim 1, characterized in that: The exhaust port of the hydrolysis reaction tower (4) is also connected to a gas exhaust pipeline (17).

6. The desulfurizing agent reduction regeneration device according to claim 1, characterized in that: Also includes a control system.

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